齿轮泵(马达)产品介绍(滚动轴承)
KCB齿轮泵说明书
一、产品概述KCB型齿轮泵适于输送重油、机械油、燃油以及不含固体颗粒、纤维的石油、化工产品等液态物质。
该型号的泵配有安全阀，能防止因过载而对泵和电机所造成的损坏。
适用温度：-10-150℃粘度：5-1500cst性能范围：流量：18.3-5400L/min压力：0.33-1.45Mpa型号说明：例 K CB 55流量（L/min）齿轮泵带安全阀二、性能参数（见表一）三、泵的结构原理1.外啮合齿轮泵的工作原理啮合的齿轮在泵体内旋转时，轮齿不断进入和退出啮合。
在吸入室，轮齿逐渐退出啮合状态，这样吸入室的容积逐步增大，压力降低，液体在液面压力的作用下进入吸入室，随齿轮齿间进入排出室。
在排出室，轮齿又逐渐进入啮合状态，齿轮的齿间逐渐被一齿轮的轮齿占据，排出室的容积减少，排出室内液体压力升高，于是液体从泵的排出口被排出泵外，齿轮连续旋转，上述过程不断进行，形成连续的输油过程。
其原理图见图一。
（在电机后端看，箭头所示为泵的出口）图一KCB系列齿轮油泵性能参数2.泵的结构：泵主要有泵体、齿轮、轴、轴承、安全阀、前盖、后盖、密封部件、联轴器部件组成。
设有安全阀的泵、当排油管路的液压值超过泵的规定时，安全阀开启，保证泵及原动机不致因压力过高而受到损坏。
轴端密封有三种形式：填料密封、机械密封、橡胶圈密封，用户可根据具体的使用条件选择合适的密封结构。
泵有良好的自吸性，泵内运动部件利用输送的液体实现润滑，致工作时可以不加引液和润滑剂。
四、安装1、泵安装前应检查泵和电机在运输过程中是否受到损坏，如电机是否受潮，泵的进出口防尘盖是否损坏而使污物进入泵腔内等。
2、泵在搬运过程中，应选择合适起吊位置，减少泵的变形。
3、泵的底座应固定在牢固的基础上，以免产生振动影响泵的正常工作。
4、泵的进出口管路应清理干净不得存有硬颗粒的报告杂物。
5、管路口径一般不小于泵的进出口径，进油管路应尽量短，并减少弯路。
必要时在进油口安装金属过滤器，过滤器的有效面积不应小于管道过流面积的三倍。
船用齿轮泵的组成和工作原理
船用齿轮泵的组成和工作原理
船用齿轮泵是一种常见的船舶液压传动设备，主要用于输送各种液体介质，如水、油、液压油等。
它由齿轮、泵体、轴承、密封件等组成，具有结构简单、体积小、重量轻、使用方便等优点。
下面我们来详细了解一下船用齿轮泵的组成和工作原理。
一、组成
1.齿轮：船用齿轮泵的主要工作部件，通常由两个或多个齿轮组成，其中一个为驱动齿轮，另一个为从动齿轮。
齿轮的材质通常为合金钢或硬质铸铁，表面经过精密加工，以保证其精度和耐磨性。
2.泵体：船用齿轮泵的外壳，通常由铸铁或铝合金制成，具有良好的耐腐蚀性和强度。
3.轴承：用于支撑齿轮和减少摩擦，通常采用滚动轴承或滑动轴承。
4.密封件：用于防止泵体内外介质的泄漏，通常采用机械密封或填料密封。
二、工作原理
船用齿轮泵的工作原理是利用齿轮的旋转来吸入和排出介质。
当驱动齿轮旋转时，从动齿轮也随之旋转，介质被吸入泵体内部，随着齿轮的旋转，介质被压缩并排出泵体。
由于齿轮的精度和密封件的作用，泵体内外介质不会相互混合，从而实现了输送介质的目的。
需要注意的是，船用齿轮泵的使用过程中需要注意保持泵体内部的清洁和润滑，以延长其使用寿命。
同时，还需要根据介质的性质和使用环境选择合适的材质和密封方式，以确保泵体的安全和可靠性。
船用齿轮泵是一种重要的船舶液压传动设备，具有结构简单、使用方便等优点，其组成和工作原理也相对简单明了。
在实际使用中，需要注意保养和维护，以确保其正常运行和安全使用。
日本住友齿轮泵说明资料
额定压力 Mpa
最高压力 Mpa
200~2500
14
16
200~2500
14
16
300~2500
14
16
200~2500
14
16
300~2200
14
16
300~2200
14
16
200~2200
14
16
扭矩 Nm
87.3 105.6 135.4 169.5 203.8 267.5
329.3
马达功率 kw
的条件下使用。
请不要私自拆解油泵，如果被拆解后再组装回去的话将无法保证油泵的性能。如果有不得
已的原因一定要拆解油泵的情况下，请事先联系我们。
广东总代理：东莞市华勤液压设备有限公司
公司地址：东莞市长安镇宵边汽修中心华勤
联系人：李林杰
电话：13826973321
236 266 Ф23 R95 92 154 373 174.5
+0
Ф152.4 -0.05
24 57 52 118 7 118
Ф50
+0.011 -0.005
82
Ф14 +0
-0.043
53.5 6 70 75
性能表
圧力 Mpa
14
16
Model No.
QT42 QT52 QT62 QT42 QT52 QT62
4，超群的低噪音 噪音水平低极了。无论压力、转数等增大，噪音值变化很少。
压力MPa・电量kW 回转数min-1
省エネ性能
注塑机完成一个周期所消费电量的比较
18
1600
16
1400
14
1200
齿轮泵参数及原理
齿轮泵参数及原理齿轮泵是一种常用的体积式泵，利用齿轮间的啮合来将液体从一个处于较低压力的区域输送到较高压力的区域。
以下将详细介绍齿轮泵的参数和原理。
一、齿轮泵的参数1.产量(Q)：指的是齿轮泵单位时间内所能输送的液体体积。
2.压力(P)：齿轮泵所能产生的最大压力。
3. 转速(N)：泵转子旋转的速度，一般以转/分钟(rpm)为单位。
4.流体性质：液体的粘度对齿轮泵的工作性能有一定的影响，粘度越高，泵的效率越低。
5.齿剖面和加工精度：齿轮泵的齿剖面对泵的噪声和效率有着重要的影响。
而齿轮的加工精度直接影响齿轮间的啮合间隙和密封性能。
二、齿轮泵的原理齿轮泵由驱动齿轮和从动齿轮组成，其中驱动齿轮通常称为驱动轮，从动齿轮通常称为从动轮。
1.泵吸入阶段：当驱动轮与从动轮啮合时，齿沟会随着齿轮的转动逐渐扩大，造成一定的负压，从而将液体吸入齿沟中。
在齿沟的底部，由于齿轮间的密封性，液体无法倒流，只能沿着齿沟向前流动。
2.泵排出阶段：在转动过程中，随着从动轮的转动，液体被推到齿轮与泵壳壁之间的间隙中。
由于驱动齿轮和从动齿轮的啮合，液体在间隙中被挤压，并沿着齿轮的外缘流动，从而产生一定的排压。
3.导流环的作用：为了防止液体直接从高压区流向低压区，齿轮泵通常还会在泵壳内设置导流环。
导流环通常是一个圆环状的金属部件，通过调整导流环与齿轮的位置来改变液体流道的通道大小，从而控制流量和压力。
总结：齿轮泵是一种简单、可靠的体积式泵，其工作原理是利用齿轮间的啮合来实现液体的输送。
通过调整泵的参数和优化齿轮的设计，可以提高齿轮泵的效率和工作性能。
齿轮油泵参数
齿轮油泵参数
1. 驱动方式：电动
2. 适用介质：齿轮油泵适用于润滑油、液压油等工业润滑剂。
3. 流量范围：齿轮油泵的流量范围通常在5 ~ 1000 L/min之间。
4. 压力范围：齿轮油泵的工作压力范围通常在1.5 ~ 10 MPa之间。
5. 温度范围：齿轮油泵的工作温度范围通常在-22 ~ 120℃之间。
6. 材料：齿轮油泵主要采用铸铁、不锈钢等材料制作，以确保其高耐磨性和耐腐蚀性。
7. 结构特点：齿轮油泵通常采用齿轮传动结构，具有紧凑、结构简单、体积小、效率高的特点。
8. 安全保护措施：齿轮油泵通常配备过载保护装置，当油泵受到超负荷工作时，可自动停机以防止损坏。
9. 使用寿命：齿轮油泵的平均使用寿命通常在5 ~ 10年左右，具体使用寿命取决于使用环境和保养情况。
10. 适用行业：齿轮油泵广泛应用于机械制造、石油化工、电力、冶金等行业。
注意：以上参数仅为一般性描述，具体参数需根据实际需求和产品型号选定。
齿轮泵简介
几种润滑方式
（5）螺旋吸油式低压润滑 当轴旋转时，利用轴承孔内螺旋槽的作用将轴承外 端的油液吸入轴承，油液对轴承进行润滑和冷却后，再 经轴承内端的大缺口流入刚脱开啮合的轮齿根部，这种 润滑方式称为螺旋吸油式低压润滑。 这种润滑方式的特点是：可以获得相当大的润滑油 流量；进入轴承的润滑油都是冷油，油液粘度大，油膜 的形成条件好，且承载能力强；油液又能通过循环不断 地将轴承热量带走，对轴承起到良好的润滑和冷却作用； 由于有大量的油液去填充刚脱离啮合的轮齿根部，大大 改善了泵的吸油性能，避免了吸空现象，不仅可以提高 容积效率，而且对减轻气蚀和噪声都有显著的效果。
1、困油现象及消除措施
困油现象的危害
闭死容积由大变小时油液受挤压， 导 致压力冲击和油液发热，闭死容积由小变大时，会引起汽 蚀和噪声。 卸荷措施 在前后盖板或浮动轴套上开卸荷槽 开设卸荷槽的原则 两槽间距a为最小闭死容积，而使闭 死容积由大变小时与压油腔相通，闭死容积由小变大时与 吸油腔相通。
3-2 齿轮泵
3-2 齿轮泵
3-2 齿轮泵
啮合形式：内啮合式和外啮合式
齿形分：渐开线齿形、摆线齿形和 圆弧齿形
一、渐开线外啮合齿轮泵
1、工作原理： 2、排量： 弧度排量： V=（1.06~1.12）Z1m2B
二、渐开线外啮合齿轮泵的几个问题
1、困油现象及消除措施 2、端面泄漏与端面间隙的自动补偿 3、径向力及减小径向力的措施
2、端面泄漏与端面间隙的自动补偿
齿轮泵的泄漏途径 （1）端面间隙泄漏 （2）径向间隙泄漏 （3）齿面啮合处的 泄漏
端面泄漏与间隙 补偿措施 端面泄漏占 80％—85％。 端面间隙补 偿采用静压平衡 措施：在齿轮和 盖板之间增加一 个补偿零件，如 浮动轴套或浮动 侧板，在浮动零 件的背面引入压 力油，让作用在 背面的液压力稍 大于正面的液压 力，其差值由一 层很薄的油膜承 受。
齿轮油泵型号价格及及性能参数
齿轮油泵型号价格及及性能参数上海阳光泵业作为国内一家著名的集研制、开发、生产、销售、服务于一体的大型多元化企业，上海阳光泵业制造有限公司一直坚持“以质量求生存、以品质求发展”的宗旨为广大客户提供优质服务!同时，上海阳光泵业一直专注于自身实力的提升以及对产品质量的严格把关，为此，目前不但拥有国内最高水准的水泵性能测试中心、完善的一体化服务体系、经验丰富的水泵专家，同时经过多年的发展，产品以优越的性能、精良的品质、良好的服务口碑获得各项专业认证证书和客户认可。
经过团队的不懈努力，上海阳光泵业在国内水泵行业已经取得了很大成就。
这样一家诚信为本、责任重于天的水泵行业佼佼者，对于水泵的维修、保养等各大方面都有自己独特的方法，下面就一起来看看吧!一、KCB齿轮油泵用途说明：KCB齿轮泵适用于输送各种油类、如重油、柴油、润滑油，配用铜齿轮可输送内点低液体，如气油、笨等所以称为齿轮油泵，不锈钢齿轮泵可输送饮料和腐蚀性的液体。
不适用于含硬质颗粒或纤维的，适用粘度为5×10-5～1.5×103m2/s。
温度不高为70℃，如需输送高温液体，单级单吸油泵请使用耐高温齿轮油泵，可输送300℃以下液体。
二、KCB齿轮油泵特点：1、该电动抽油泵结构简单紧凑，使用和保养方便。
2、具良好的自吸性，故每次开泵前不须灌入液体。
3、润滑是靠输送的液体而自动达到的，故日常工作时无须另加润滑液。
4、利用弹性联轴器传递动力可以补偿因安装时所引起的微小偏差。
在油泵工作中受到不可避免的液压冲击时，能起到良好的缓冲作用。
三、KCB齿轮油泵结构说明：KCB齿轮油泵泵体、齿轮、前后泵盖、安全阀、轴承及密封装置等零、部件组成.1、泵体、前后盖等零件为灰铸铁件，齿轮用优质碳素钢制作；亦可根据用户需要用铜材或不锈钢制作。
2、安全阀。
KCB系列油泵在后泵盖或泵体上方装有安全阀，齿轮油泵当泵或排出管道发生故障或将排出阀门完全关闭而产生高压和高压沖击时安全阀就会自动打开，卸除部分或全部的高压液体回到吸入腔，从而对泵及管道起到安全保护作用。
齿轮泵与齿轮马达
齿轮马达的优缺点
要点一
结构紧凑
齿轮马达体积小、重量轻，便于集成到各种机械设备中。
要点二
响应速度快
由于其简单的机械结构，齿轮马达的响应速度较快。
齿轮马达的优缺点
• 维护方便：齿轮马达的结构简单，维护起来相对 方便。
齿轮马达的优缺点
效率较低
与其它类型的马达相比， 齿轮马达的效率可能较低。
输出扭矩有限
其他领域
除了工业和汽车领域，齿 轮马达还应用于医疗器械、 航空航天、船舶等工作原理比较
齿轮泵工作原理
齿轮泵依靠主动轴和从动轴上的齿轮相互啮合，使密封容积发生变化，从而吸入和排出 液体。
齿轮马达工作原理
齿轮马达在输入力矩作用下，通过齿轮传动将液体压力能转换为机械能，实现旋转运动。
由于其结构限制，齿轮马 达的输出扭矩相对较小。
对油品要求高
为了保证正常运行，齿轮 马达对所使用的油品有较 高的要求。
06
齿轮泵与齿轮马达的发展 趋势和未来展望
技术发展趋势
高压化
随着工业领域对高压力、高效率 的需求增加，齿轮泵与齿轮马达 在高压化方面取得了显著进展，
提高了输出压力和效率。
智能化
随着物联网、传感器等技术的快 速发展，齿轮泵与齿轮马达正朝 着智能化方向发展，实现远程监 控、故障诊断和自动控制等功能。
性能比较
齿轮泵性能
齿轮泵具有结构简单、紧凑、成本低等优点，适用于中高压、大流量、高粘度液体的输送。但齿轮泵的泄漏较大， 效率相对较低。
齿轮马达性能
齿轮马达具有效率高、寿命长、可靠性高等优点，适用于高压、高转速、大扭矩的场合。但齿轮马达的结构较为 复杂，制造成本较高。
应用场合比较
齿轮泵应用场合
齿轮泵型号及参数
齿轮泵型号及参数引言：齿轮泵是一种常见的液压泵，它通过齿轮之间的啮合来产生流体的加压。
齿轮泵可用于各种工业领域，广泛应用于液压系统、润滑系统、注油系统等。
为了选择适合特定应用的齿轮泵，我们需要了解不同型号和相关参数。
一、齿轮泵的基本工作原理：齿轮泵由两个相互啮合的齿轮组成，通常是一个驱动齿轮和一个从动齿轮。
驱动齿轮通过旋转驱动从动齿轮，从而将液体从泵的吸入口吸入，并通过压力油路将液体推送到排液口。
在齿轮之间形成的密封空间中，液体被压缩和推送，从而实现液体的加压传送。
二、齿轮泵的常见型号：1. 外啮合式齿轮泵：外啮合式齿轮泵也称为外齿轮泵，其齿轮直径相对较大，通常用于较大流量和较低压力的应用。
外齿轮泵结构简单，具有体积小、噪音低的优点。
它适用于一般液体的输送，如水、润滑油等。
2. 内啮合式齿轮泵：内啮合式齿轮泵也称为内齿轮泵，其齿轮直径相对较小，通常用于较小流量和较高压力的应用。
内齿轮泵结构更加复杂，但具有更高的工作效率和更好的自吸能力。
它适用于高压液体的输送，如液压油、燃油等。
三、齿轮泵的参数：1. 流量：流量是指单位时间内通过齿轮泵的液体体积。
在选择齿轮泵时，需要根据实际应用需求确定所需流量。
通常以升/分钟（L/min）或立方米/小时（m³/h）为单位进行表示。
2. 压力：压力是指液体在齿轮泵内的加压程度。
在选择齿轮泵时，需要根据系统的工作压力确定所需泵的最大压力。
通常以兆帕（MPa）或巴（bar）为单位进行表示。
3. 转速：转速是指齿轮泵主动齿轮的旋转速度。
在选择齿轮泵时，需要根据系统的要求和液体性质确定所需的泵转速。
通常以转/分钟（rpm）为单位进行表示。
4. 温度：温度是指液体在齿轮泵内的工作温度范围。
齿轮泵通常能够适应一定范围的温度变化，但在选择时需要确保所选泵能够在实际工作条件下正常运行。
5. 材料：材料是指齿轮泵的主要构成材料。
常见的材料包括铸铁、铝合金、不锈钢等。
在选择齿轮泵时，需要根据液体属性和工作环境选择合适的材料，以确保泵具有良好的耐腐蚀性和耐磨性。
齿轮油泵型号及参数
齿轮油泵型号及参数【KCB/2CY型齿轮油泵】产品：【KCB/2CY型齿轮油泵】产品简介：2CY、KCB齿轮式输油泵：1、本泵适用于输送各种有润滑性的液体，温度不高于70℃，如需高温200℃，同本单位联系可配用耐高温材料即可，粘度为5×10-5～1.5×10-3m2/s。
2、本泵不适用于输送腐蚀性的、含硬质颗粒或纤维的、高度挥发或闪点低的液体，如汽油、笨等。
【KCB/2CY型齿轮油泵】型号意义：【KCB/2CY型齿轮油泵】特性优点：1．2CY、KCB齿轮式输油泵结构简单紧凑．使用和保养方便，2．2CY、KCB齿轮式输油泵具良好的自吸性，帮每次开泵前不须灌人液体，3．2CY、KCB齿轮式输油泵的润滑是靠输送的液体而自动达到．故日常工作时无须另加润滑液。
4．利用弹性联轴器传递动力可以补偿因安装时所引起的微小偏差。
在泵工作中受到不可避免的液压冲击时，能起到较号的缓冲作用。
【KCB/2CY型齿轮油泵】工作原理：2CY、KCB齿轮式输油泵在泵体中装有一对回转齿轮，一个主动，一个被动，依靠两齿轮的相互啮合，把泵内的整个工作腔分两个独立的部分。
A 为入吸腔，B为排出腔。
泵运转时主动齿轮带动被动齿轮旋转，当齿化从啮合到脱开时在吸入侧(A)就形成局部真空，液体被吸入。
被吸入的液体充满齿轮的各个齿谷而带到排出侧(B)，齿轮进入啮合时液体被挤出，形成高压液体并经泵的排出口排出泵外。
【KCB/2CY型齿轮油泵】结构特点：1．2CY、KCB齿轮式输油泵是卧式回转泵，主要有泵体、齿轮、轴承座、安全阀、轴承及密封装置等机件组成。
2．泵体、轴承座等为灰铸铁件，齿轮用优质碳素钢材制作，亦可根据用户特殊需要用铜材料或不锈钢材料制作。
3．轴承座上有一填料函室，起轴向密封作用。
2CYl00／3，2CYl20／3，2CYl50／3，KCB一300～960型泵采用骨架密封装置。
轴承采用单列向心球轴承。
KCB一18．3～83．3型泵采用三个耐油橡胶圈和中间衬隔的一个挡圈组成，调节压紧盖上的两只螺母来调节密封的程度，轴承采用铜基粉末含油轴承。
齿轮泵内部结构
齿轮泵内部结构齿轮泵是一种常用的液压泵，其内部结构包括泵体、齿轮、轴承和密封件等主要部件。
下面将详细介绍齿轮泵的内部结构。
一、泵体泵体是齿轮泵的主要外壳，通常由铸铁或铸钢制成。
泵体内部有两个相互咬合的齿轮腔，用于容纳齿轮和液体。
泵体上部有进油口和出油口，进油口连接液压系统的油箱，出油口连接液压系统的工作部件。
二、齿轮齿轮是齿轮泵的核心部件，用于传递动力和压力。
齿轮通常由高强度合金钢制成，具有良好的耐磨性和强度。
齿轮泵常见的齿轮有外齿轮和内齿轮两种。
外齿轮泵的齿轮分为主动齿轮和从动齿轮，主动齿轮通过电机或发动机带动从动齿轮旋转，从而产生压力。
主动齿轮和从动齿轮之间的啮合配合非常精确，以确保密封性和传动效率。
内齿轮泵的齿轮分为内外齿轮，内齿轮作为主动齿轮，外齿轮作为从动齿轮。
内外齿轮之间的啮合配合也非常精确。
内齿轮泵通过内齿轮的旋转来产生压力。
三、轴承轴承安装在泵体内部，用于支撑齿轮的旋转。
轴承通常采用滚动轴承，具有较高的承载能力和较低的摩擦损失。
为了保证齿轮泵的正常运行，轴承需要保持充分润滑。
四、密封件密封件用于保持齿轮泵的密封性，防止液体泄漏。
常见的密封件有轴封、填料密封和间隙密封等。
轴封通常由橡胶或聚氨酯制成，填料密封使用填料填充泵体和轴封之间的间隙，间隙密封则通过间隙的设计来实现密封效果。
五、工作原理齿轮泵的工作原理是通过齿轮的旋转将液体吸入泵体的一个齿轮腔，然后将液体挤出泵体的另一个齿轮腔。
在齿轮腔内，液体会被齿轮牵引并形成密封，从而形成一定的压力。
齿轮泵的压力和流量与齿轮的旋转速度和齿轮的啮合配合有关。
总结：齿轮泵的内部结构包括泵体、齿轮、轴承和密封件等主要部件。
泵体是齿轮泵的外壳，齿轮是齿轮泵的核心部件，轴承用于支撑齿轮的旋转，密封件用于保持泵的密封性。
齿轮泵通过齿轮的旋转来产生压力，实现液体的吸入和排出。
齿轮泵结构简单、可靠性高，广泛应用于液压系统中。
齿轮泵
第三章外啮合齿轮泵引论第一节特点、现状与分类在各类机械工程中，外啮合齿轮泵是一种应用极为广泛的液压泵。
它的主要优点是：（l）结构简单，体积小，重量轻，零件少，工艺性好，制造容易，维修方便，价格低廉。
（2）自吸性能好，转速低至每分钟三、四百转时，仍能稳定、可靠地实现自吸。
（3）转速范围广，流量储备系数大。
由于齿轮泵的转动基本上还算是平衡的，虽然常用转速在每分钟1500转左右，但高速时可达每分钟5000转以上。
这样，供给的流量就在常用转速流量的3倍以上。
（4）对油液的污染不敏感，工作过程中不易咬毛或卡死，可输送高粘度的油液和稠度大的流体。
其主要缺点是：流量和压力脉动较大，排量不可调节，高温效率低。
齿轮泵是我国最早生产的液压元件之一。
开始是仿造苏联ЩГОl型泵，以后逐渐形成自己的CB系列。
现在国产的齿轮泵，压力从0．25～35MPa，流量自3～400L／min的均有。
产品主要性能已接近或达到国外先进水平。
产品结构也不断更新。
据不完全统计，国产齿轮泵现有CB，CB－B，CB－G，CB－N，CB－P，CB－Q，CB－L，CB－Z等20多种，还不包括军工产品型号在内。
当前，产品结构上的改进使三联、四联、五联齿轮泵相继出现，部分地弥补了齿轮泵不能变量的缺点，随着使用性能的进一步完善，以往采用轴向变量柱塞泵的液压设备将会改用齿轮泵。
齿轮泵的常见分类如下：按齿轮啥合形式：外啮合、内啮合按工作压力：低压、中压、中高压、高压控齿轮齿形：直齿、螺旋齿、摆线齿、圆弧齿、人字齿、特殊齿（螺杆齿）按工作齿轮对数：二对、多对按泵的结构：单级、双级、多联第二节外啮合齿轮泵的一些共性问题一、基本典型泵的结构和工作原理图3－1 CB—B型齿轮泵l－后盖；2－泵体；3－前盖；4－套；5－密封圈；6－输入轴；7－主动齿轮；8－轴；9－齿轮；10－滚针轴承；11－闷盖；12－定位销；13－螺钉CB—B型齿轮泵是我国最基本最为典型的外啮合齿轮泵，属低压系列。
KCB齿轮泵说明书大全
KCB齿轮泵● 用途适用于输送不含固体颗粒和纤维，无腐蚀性，温度不高于80℃，粘度为5×10-6～×10-3m2/s (5-1500cSt)的润滑油或性质类似润滑油的其他液体。
● 结构特性本系列齿轮泵主要有齿轮、轴、泵体、安全阀、轴端密封所组成。
齿轮经热处理有较高的硬度和强度，与轴一同安装在可更换的轴套内运转。
泵内全部零件的润滑均在泵工作时利用输出介质而自动达到。
泵内有设计合理的泄油和回油槽，是齿轮在工作中承受的扭矩力最小，因此轴承负荷小，磨损小，泵效率高。
泵设有安全阀作为超载保护，安全阀的全回流压力为泵额定排除压力的倍，也可在允许排出压力范围内根据实际需要另外调整。
但注意本安全阀不能作减压阀的长期工作，需要时可在管路上另行安装。
从主轴外伸端向泵看，为顺时针旋转。
齿轮泵是在介质粘度4×10-3m2/s(40cSt)时确定的。
性能参数表中给出的参数值适用于介质粘度1×10-5～8×10-5m2/s(10～80cSt)范围内，超出这个范围则根据用户提出的性能参数要求另行确定。
各型齿轮泵性能参数中给出的排出压力是给出的最大的工作压力值，在此范围内泵均能正常工作，其工作范围见图一。
KCB系列齿轮油泵是有泵体、前后泵盖、齿轮、主被动轴、轴承、安全阀和轴端密封等零件组成。
——主传动齿轮是一对斜齿园柱齿轮，直动式安全阀。
KCB200—960主传动齿轮是四个斜齿轮组成的人字形齿轮组，差压式安全阀。
全系列齿轮油泵用三爪式弹性联轴器与电动机组成的热油泵机组。
本系列齿轮油泵结构简单紧凑，使用维护方便，运转平稳，使用安全可靠。
● 适用范围本型齿轮油泵适用于输送介质粘度不大于150mm2/S ，温度不高于120°C，无腐蚀性，不含硬质颗粒杂质和纤维的重油、柴油、机械油、植物油以及性质类似的其它液体。
本型齿轮油泵主要用于石油、化工、冶金、矿山、电站等行业油类介质的转输、增压、燃油喷射等以及大型机械设备中稀油循环中，在各类机械设备中均可做润滑泵使用。
齿轮泵简介(中英对照)
Gear pumpChinese Name: gear pumpName: gear pumpDefinition: rely sealed in a housing of two or more gears, the work space is generated in the process of mutual engagement volume change to liquid delivery pump.Applied disciplines: mechanical engineering (a subject); drive (two subjects); hydraulic transmission (two subjects)The gear pump is to rely on the change and moving of the working volume of the pump cylinder and the ring gear formed between rotary pumps for conveying liquid or so pressurized. Form two closed space by two gears, pump, front and rear cover, when the gear is rotated, the gear is disengaged from the side of the space volume grew larger, forming a vacuum, the liquid suction, the gear meshing side of the volume of the space from large small, while the liquid squeeze into the pipeline to go. The suction chamber and the discharge chamber is spaced by two gears meshing line to. The outlet pressure of the gear pump is entirely dependent on the size of the pump source resistance.The concept of the working principle of the gear pump is very simple, i.e. in its most basic form is the same as the two dimensions of the gear in a close fit within the housing.The engagement rotation, the interior of the housing is similar to the "8" shape, the two gears are mounted on the inside, the outside diameter of the gear, and both sides of the housing close fit. From the extruder, the material in the suction port into the middle of the two gears, and to fill this space, the rotation direction of the housing with the teeth movement, and finally discharged in the two toothing.Speaking in terminology, gear pump, also called a positive displacement device, i.e. as a cylinder bore of the piston, when one tooth into the fluid space of another tooth, the liquid is mechanically squeezed row out. Because the liquid is incompressible, so the liquid and the tooth at the same time can not occupy the same space, so that the liquid has been excluded. This phenomenon continuously occurs due to the continuous engagement of the teeth, and, therefore, at the outlet of the pump provides a continuous excluded volume pump per revolution, the same amount of discharged. With the uninterrupted rotation of the drive shaft, the pump also continuously discharged fluid. The pump flow is directly related to the speed of the pump.In fact, in a pump with a small amount of fluid loss, which makes the efficiency of the operation of the pump can not reach 100%, because these fluids are used to lubricate bearings and gears on both sides, and the pump body can never be a clearance fit, so can not make 100% of fluid from the outlet, so asmall amount of fluid loss is inevitable. However, the pump or can run well, can still reach an efficiency of 93% to 98% for most of the extrudate,.Viscosity or density changes in the process fluid, the pump will not be much of an impact. If there is a damper, for example in the outlet side accommodates a strainer or a limiter, the pumps will push fluid through them. If the damper changes in their work, i.e., if the filters become dirty, clogged, or the back pressure of the limiter, the pump will continue to maintain a constant flow rate, until the device of the weakest parts of the mechanical limit is reached (usually equipped with a torque limiter).The rotational speed of a pump, in fact, is limited, which mainly depends on the process fluid, and if the transmission is oil, the pump can be rotated at high speed, but when the fluid is a high viscosity of the polymer melt body, this restriction will be substantially reduced.Promote the highly viscous fluid to enter the intake port side of the two tooth space is very important, if this space is not filled, then the pump would not discharge the flow of accurate, so the value of PV (pressure x velocity) is another limiting factor, and is a process variable. Because of these limitations, the gear pump manufacturer will provide a range of products of different specifications and displacement (for each revolution of the amount discharged). These pumps will be compatible with the specific application process to make the system optimal capacity and price.PEP-II of the pump gear and shaft are of integrally quintana hardened process, to obtain a longer working life. "D" type bearing a combination of forced lubrication mechanism, so that the polymer via a bearing surface, and returns to the inlet side of the pump, in order to ensure effective lubrication of the rotation shaft. This feature reduces the possibility of retention and degradation of polymers. Precision machining of the pump shaft exact fit, to the bearings and gears of the "D" type can ensure that the gear shaft is not eccentric, to prevent the gear wear. The Parkool sealed structure with PTFE lip seal a water-cooled sealed together. Such seals do not actually touch the surface of the shaft, its sealing principle is that the polymer is cooled to a semi-molten state and form a self-sealing. May also be used Rheoseal sealing it in a reverse spiral groove seal sheet processing, the polymer can be anti pressed back imported. For ease of installation, the manufacturer to design an annular bolt mounting surface to enable the flange installation cooperating with other devices easier, which makes the manufacture of the cylindrical flange. PEP-II gear pump with heating element matches with the specifications of the pump, available to users matching, which can ensure the rapid heating and heat control. Different pump body heating mode, the damage to these components only a board, independent of the entire pump.The gear pump is driven by a separate motor, effectively blocking the upstream pressure pulsation and flow fluctuations. Gear pump outlet pressure pulsation can be controlled within 1%. In the extrusion production line using a gear pump, and can improve the speed of flow rate output, and to reduce theshearing of the material in the extruder and residesThe external gear pump is the most widely used as a gear pump, the general gear pump is usually refers to external gear pump. Its structure is shown in Figure 5-14, the main drive gear, driven gear, pump, pump cover and safety valve. The sealed space gear pump pump, pump cover and gear constitute studio. Two gear axle are fitted respectively in the two bearing bore of the pump cover, out of the pump body, the driving gear shaft driven by the motor rotation. External gear pump is simple structure, light weight, low cost, reliable work, a wide range of applications.Gear pump working, driving wheel with the motor to rotate and drive the driven wheels to follow the rotation. When the suction chamber side of the meshing teeth gradually separate, the volume of the suction chamber is increased, the pressure is reduced, put the liquid suction pump suction human tube; suction liquid two routes in the alveolar gear pushed onto the discharge chamber. Liquid into the discharge chamber, since the two gear teeth continuously engaged, liquid is squeezed from the discharge chamber into the discharge pipe. Driving gears and driven gears are constantly rotating, the pump can be continuous suction and discharge liquid.Equipped with a safety valve, a pump, conveying the liquid may be automatically open the top valve, so that the high pressure liquid is returned to the suction pipe when the discharge pressure exceeds a predetermined pressure.The internal gear pump, the inner gear, by a pair of mutually meshing and the middle of the crescent-shaped member, the pump casing and the like. The crescent-shaped member is spaced from the suction chamber and a discharge chamber. When the pinion gear is rotated, a partial vacuum is formed, in the place of the gear is disengaged, the liquid being sucked A pump filled with the suction chamber interdental, and then along the inner and outer sides of the two routes of the crescent-shaped member into the discharge chamber. In place of the tooth into engagement, the liquid present in the interdental is extruded while the feed discharge tube.Gear pump with self-priming capability, flow and discharge pressure independent pump casing, suction valve A and the discharge valve has a simple structure, uniform flow, reliable, low efficiency, noise and vibration, easy wear, used to transport non-corrosive, non-solid particles and various oils with lubricating ability, the temperature is generally not more than 70 '° C, such as lubricating oil, edible oil. The general flow range of 0.045 ~ 30ms / h, pressure range of 0.7-20MPa, working speed 1200-4000r/min.Structural featuresGear ninety people advanced level of new technology - dual arc sine curve tooth arc. Involute gear, the most prominent advantages Tooth Surface gear meshing process there is no relative sliding tooth surface wear, and stable operation the trapped fluid phenomena, low noise, long life, high efficiency.The pump to get rid of the shackles of the traditional design into a new area in the design, production and use of the gear pump.The pump has a differential pressure relief valve as overload protection, safety valve total reflux pressure pump rated discharge pressure of 1.5 times. Allows discharge pressure range in accordance with the actual need to be adjusted separately. But this safety valve for not reducing valve long-term work, the need to separately install the pipeline.The shaft end seal design for the two forms, a mechanical seal, a packing seal, can be determined according to the specific use conditions and user requirements.Operation and maintenance, start:Gear pumps(1) before the start of check all pipe flange joint tightness.(2) coupling plate moving without friction and collision sound.(3) The first time you start the pump should be injected into the transmission fluid.(4) before the start of fully open suction and discharge valve in the pipeline, the non-closing valve starts.(5) Verify that the motor rotation direction, start the motor.2, Parking:(1) Turn off the motor.(2) Turn off the pump inlet and outlet valves.Common faults can not discharge(1) failure phenomenon: the pump can not dischargeGear pump the whole picture (3) the cause of the malfunction: a rotating in opposite directions; b, suction or discharge valve closed; c, the entrance no material or pressure is too low; d, the viscosity is too high, the pump can not bite materialCountermeasures: a, confirm the direction of rotation; confirm valve is closed; c, check valves and pressure gauges; d, check the liquid viscosity, low speed according to the speed ratio of the flow, if flow is insufficient flowsInadequate flow(2) failure phenomenon: pump flow the lack KCB300 gear pumpThe cause of the malfunction: a, inhalation or discharge valve closed; b, low inlet pressure; c export pipeline blockage; d, stuffing box leakage; e, the speed is too lowCountermeasures: a confirmation whether the valve is closed; b, the check valve is open; c confirm excretion is normal; d, fastening; drain large leak affecting production, should stop operation, demolition inspection; e, check the pump shaft speed ;Abnormal sound(3) failure phenomenon: abnormal soundThe cause of the malfunction: a coupling the the eccentric big or poor lubrication b, motor failure; abnormal c reducer; to poor installation d seal at; e shaft deformation or wearCountermeasures: a look for positive or filling grease; b, check the motor; c, check the bearings and gears; d, check the seal; e, parking disintegration of inspectionCurrent is too large(4) failure phenomenon: the current to excessive gear pump seriesThe cause of the malfunction: a outlet pressure is too high; b, the melt viscosity is too large; poor c, shaft seal assembly; the d shaft or bearing wear; e, motor failureCountermeasures: a to check downstream equipment and piping; b testing viscosity; c, check the seal properly adjusted; d, parking after checking hand drive cars are overweight; e, check the motorPump suddenly stopped(5) failure phenomenon: the pump suddenly stoppedThe cause of the malfunction: a power outage; b, motor overload protection; c coupling damage; d, the outlet pressure is too high, the chain reaction; e pump, biting into the anomaly; f, shaft and bearing adhesive stuck Countermeasures: a, check the power;, check the motor; c, f turning to open the safety cover, turning checks; d check the instrumentation interlock system; e, after stopping, reversing turning confirmed; confirmSeal oil spill(6) failure phenomenon: sealing oil spillCause: a shaft seal is not adjusted, seal wear between fine c mechanical seal dynamic friction surface of the stationary ring with bad four spring relaxation Countermeasures: a re-adjustment of b, the right amount tighten the gland bolts or replace the seals, c, replace the dynamic and static ring or reground, four replacement springOther phenomena1 causes(1) internal and external rotor backlash too the suction pressure oil chamber interoperability. Significantly reduce the volumetric efficiency, the output flow is not enough;②axial clearance is too large;③the suction line junction surface Mifengbuyan the other reasons, so that the pump into the air, effective suction flow reduction;④Suction poor. As a result of the oil viscosity is too large, the oil filter clogged by dirt as a result of the inhalation flow reduction;⑤relief valve stuck in the half-opening position, part of the pump to the flow back to the tank through the relief valve, and making the traffic into the system is not enough. At this time accompanied by a failure do not increase the system pressure.2, Remedy①replace the inner and outer rotor, the tooth side of the gap within a predetermined range (typically less than 0.07 mm);②both ends of the grinding pump surface, to ensure that after the assembly of the rotor inside and outside the axial gap in the range of 0.02 ~ 0.05mm; (3) replacing defective suction pipe seal, bandaged pipe fittings threaded portion and then tighten fittings with Teflon tape;(4) appropriate viscosity oil, washing oil into the oil filter to make oil-absorbing smooth. And, where appropriate, to increase the oil absorption diameter;⑤repair relief valve, to exclude relief valve shorted fuel tank caused the pump effectively reduced flow phenomenon.Edit this paragraph the trapped oil phenomenon gear pump to a smooth work, the degree of coincidence of the gear must be greater than 1, so there are always two pairs of gears engaged simultaneously, and a part of the oil is siege surrounded by a closed cavity in the two pairs of teeth between. This closed cavity begins with the rotation of the gear is gradually reduced, and later gradually increased. Closed chamber volume decreases causes trapped fluid by squeezing generate high pressure, and is extruded from the gap, leading to fluid heating, and to enable the parts to subject to additional loads; while the increase in volume of closed chamber also caused a partial vacuum, and dissolved in the oil in the gas separation, the occurrence of the cavitation. These will generate a strong vibration and noise, which is a gear pump phenomenon of trapped oil.HarmThe radial imbalance force is large enables the shaft bending, the tooth tip in contact with the housing, while the accelerated wear of the bearings and reduce the life of the bearing.EliminationMethod to eliminate the trapped oil, usually in the both sides of the cover open unloading groove, so that the volume of the closed chamber is reduced through the left unloading groove communicates with the oil pressure chamber, the volume increases when the unloading tank with the suction chamber through the right side connected.Feasible circuit performance to improve the performance of gear pumpGear pumps due to the structural constraints of the fixed displacement gear pump is generally considered only for the constant flow hydraulic source. However, the accessories and threaded coupling combination valve program is effective for improving its functionality, reduce system cost and improve system reliability and, therefore, the performance of the gear pump approachability expensive, complex piston pump.Mounted directly on the pump control valve, eliminating the need for tubing between the pump and the directional valve, to thereby control the cost. Fewer fittings and connectors to reduce the leak, and to improve reliability. And the pump itself valve can reduce the loop the loop pressure to improve theperformance of their work. Here are some of the basic functions of the gear pump can improve the loop, some of which is proved to be feasible practice basic loop, and some of the innovative research.Uninstall loopUninstall components will combine high flow pump with low-power single-pump. The liquid from the two gear pump due to the structural constraints of the fixed displacement gear pumps usually considered only for the constant flow hydraulic source. However, attachments and threaded coupling combination valve program to enhance its functionality, reduce system cost and improve system reliability to be effective, therefore, gear pumps, fixed displacement due to structural constraints, usually considered only for constant flow gear pump hydraulic source to use. However, the accessories and threaded coupling combination valve program is effective for improving its functionality, reduce system cost and improve system reliability and, therefore, the performance of the gear pump approachability expensive, complex piston pump. Performance accessible expensive, complex piston pump. The outlet, until it reaches a predetermined pressure, and (or) traffic. At this time, the large flow pump put flow from the outlet is recycled to the inlet, thereby reducing the output flow of the pump system, the upcoming pump power is reduced to just above the desired value of the high-pressure part of the work. The percentage depends on the flow rate decreases not uninstall displacement ratio of total displacement. Combination or threaded coupling unloading valve to reduce or eliminate the pipes, channels and accessories, and other possible leaks.Easiest unloading member by manual manipulation. Spring unloading valve is turned on or off, when a manipulation of the signal to the valve, the valve off state is switched. Leverage or other mechanical agencies is the easiest way to manipulate this valve.Guidance and control (pneumatic or hydraulic) unloading valve is an improvement of the mode of operation, because such valves can be remotely controlled. Its greatest progress is a solenoid valve controlled by an electrical or electronic switch, it is not only the available remote control available microcomputer automatic control, generally considered this simple unload technology is the application of the best case.The artificial manipulation uninstall components commonly used in large flows and fast action to be large flows and reduce the flow loop for precise control, such as rapid telescopic boom circuit need for fast action. Unloading valve of the circuit shown in Figure 1 without the manipulation of the signal effect, the large flow loop always output. For a normally open valve, in the normal state the loop will output a small flow.Pressure sensing unload valve is the most common solution. As shown in Figure 2, the spring action of the unloading valve is in its flow position. Circuit pressure relief valve preset value is reached, the relief valve to open, the uninstall switch valve in the hydraulic and under to its small flow position. Thepressure sensing uninstall circuit used for the trip to their fast, low speed high pressure fluid supply of the hydraulic cylinder when the end of the trip. Pressure sensing unloader valve base is basically a reach system pressure and unloading automatically uninstall components, generally used for the splitter mileometer and hydraulic vise.Unloader valve is the flow sensing uninstall loop pressure to the large flow position by a spring. The fixed orifice size of the valve flow to determine the optimum speed of the engine required. If the engine speed exceeds this optimum range, the throttle orifice pressure drop will increase, which will unload valve shift to small flow position. High flow pump adjacent elements made of the size of the maximum flow throttle, therefore circuit energy consumption less smooth and low cost. Typical applications of this loop, the loop defining flow rates up to an optimum range in order to improve overall system performance, or qualified machine during traveling at high speed loop pressure. Commonly used in the garbage carrying trucks.Pressure flow sensing the uninstall circuit of unloading valve is pressed to the large flow position by a spring, whether it reaches a predetermined pressure or flow, will uninstall. Idling or normal operating speed, the equipment can be used to complete the high-pressure job. This feature reduces the unnecessary traffic, and therefore reduces the required power. Because such a circuit having a wide range of load and speed changes, Guchang for excavation equipment.With power integrated pressure sensor the uninstall circuit, by two minor changes in the pressure sensing uninstall pump, two sets of pumps driven by the same prime mover, Guidance and Control unload signal to accept another uninstall pump each pump. Such sensing mode called interactive sensing, it enables a set of pump to work under high pressure and the other set of pump work in a large flow. Two relief valve is adjusted according to each special loop pressure to make one or two pumps to uninstall. This program has reduced power requirements, and therefore inexpensive prime mover of the small capacity can be used.The load sensing Uninstall loop. When the load-sensing signal to the main control valve control chamber (lower chamber), the pump flow rate through valve 1, a valve 2 rows back to the tank; when the load-sensing signal is applied to the control valve, the liquid supply pump to the loop; When the pump output pressure exceeds a predetermined value when the pressure of the load sensing valve, the pump only to loop work flow, throttle position bypass back to the tank and the excess flow through the valve.Gear pumps and piston pump with load sensing element with low cost, the ability of anti-pollution and low maintenance requirements of the advantages. Priority flow controlRegardless of the speed of the gear pump, the size of the work pressure or slip traffic, value flow control valves total guarantee the equipment required for the flow. In this circuit shown in Figure 7, the output flow of the pump mustbe greater than or equal to the time passage required flow, the secondary flow can be used with or back to the tank. Once setpoint flow valves (proportional valve), the primary control and hydraulic pump combined, eliminating piping and to eliminate the external leakage, and therefore reduce the cost. Typical applications of the of such gear pump loop truck crane can frequently be seen on the steering mechanism, which eliminates the need for a pump.Load sensing function and setting of the flow control valve is a flow control function is very similar: that is, regardless of the speed of the pump, pressure or slip the pumping required flow size, offer flow. But only through a port to the primary oil line to provide the required flow until the maximum adjustment value. This circuit can replace the standard flow control loop for maximum output flow. No-load circuit pressure is lower than the set value once the flow control program, so the loop temperature rise is low, no-load power consumption. Load sensing column flow control valve with a flow control valve, a typical application of the power steering mechanism.Bypass flow controlBypass flow control, regardless of the speed of the pump or the level of pressure of work, the total pump to the system at a predetermined maximum value for the fluid, the excess the part row back to the tank or pump inlet. This scenario limits the flow into the system, so that it has the best performance. The advantage is, to control the maximum adjustment flows through a circuit scale and reduce costs; the pump and valve integrally, and through the pump bypass control, so that the circuit pressure is reduced to a minimum, thereby reducing the pipeline and its leakage.The bypass flow control valve in the group with limited work flow (speed) range load sensing control valve with design. Such type of gear pump circuit commonly used to limit the hydraulic control so that the engine up to the optimum speed Spam delivery truck or power steering pump circuit can also be used in a fixed mechanical device.Dry suction valveThe dry suction valve is a pneumatic control hydraulic valve, which is used to pump oil into the throttle, only minimal flow (<18.9t/min) through the pump when the equipment's hydraulic-load; while the load full flow suction pump. Shown in Figure 10, this circuit may be omitted between the pump and prime mover clutch, thereby reducing the cost, and also reduces the load power consumption, a prime mover of power due to the minimal flow through the loops to maintain the device. In addition, to reduce the noise of the pump in the no-load. Dry suction valve circuit switching hydraulic system can be used in any vehicle driven by an internal combustion engine, for example, the garbage loading trucks and industrial equipment.Hydraulic pump program selectionCurrently, the working pressure of the gear pump is nearing piston pump, the combination of load sensing program offers the possibility of variable gear pump, which means the original clear boundaries between the gear pump andpiston pump change management increasingly blurred a.Reasonable to select one of the determinants of the hydraulic pump program, the cost of the entire system, expensive piston pump, gear pump, with its lower cost, simple circuit, filtration requirements and low, as many applications as practicable options.Edit this paragraph, motor characteristics G5, GPC4 series gear pump, GM5, GMC4 series gear motor introduction in the United States Vickers (VKS), technical prominent features:Compact structure, small size, light weightBy the aluminum alloy before the cover, the intermediate, the rear cover, gear alloy steel and aluminum alloy pressure plate component parts, the front, within the press fitted in the rear cover two DU bearings, for DU material is ideal for the gear pump bearing materials, can greatly improve the life of the gear pump.2. Reliable workThe pressure plate is the main element of the radial and axial pressure compensation, can reduce the bearing loads and automatic adjustment of the gear shaft to the gap, thus effectively improving the performance and operational reliability of the gear pump; GM5, GPC4 series of gear motors can provide single rotation without front bearing, double rotation without front bearing and single-spin to the band front bearing double spin with the front bearing four structure type, with front bearing gear motor can withstand radial forces and axial force .3 high-speed, pressureSpeed high from 3000 to 4000 rev / minute, the theoretical torque 17N.m (Newton meters) ~ 64N.m up to 20-25MPa.4. Connection method is applicable to imports of machinery and construction machineryMeet SAE and National Standard GB mounting flange and shaft extension, oil inlet and outlet ports connected line. Widely used in automobiles, tractors, construction machinery, agricultural machinery and other mechanical hydraulic systemNational standard JB / T 7041-2006 hydraulic gear pumpJIS B8312-2002 gear and screw pumps. Hydraulic performance acceptance testsJB / T 51055-1999 the agricultural gear pump product quality gradingJB / T 53312-1999 gear pump product quality gradingJB / T 58211-1999 hydraulic gear pump (2.5MPA, 10 ~ 25MPA) of product quality gradingJIS B8352-1999 hydraulic gear pumpJB / T 9835.2-1999 agricultural gear pump mounting flange and shaft dimension series and markJB / T 9835.1-1999 gear pumps for agriculture technical conditions。
齿轮泵知识
齿轮泵科技名词定义中文名称：齿轮泵英文名称：gear pump定义：依靠密封在一个壳体中的两个或两个以上齿轮，在相互啮合过程中所产生的工作空间容积变化来输送液体的泵。
应用学科：齿轮泵是依靠泵缸与啮合齿轮间所形成的工作容积变化和移动来输送液体或使之增压的回转泵。
由两个齿轮、泵体与前后盖组成两个封闭空间，当齿轮转动时，齿轮脱开侧的空间的体积从小变大，形成真空，将液体吸入，齿轮啮合侧的空间的体积从大变小，而将液体挤入管路中去。
吸入腔与排出腔是靠两个齿轮的啮合线来隔开的。
齿轮泵的排出口的压力完全取决于泵出处阻力的大小。
编辑本段齿轮泵工作原理分析外啮合双齿轮泵的结构。
一对相互啮合的齿轮和泵缸把吸入腔和排出腔隔开。
齿轮转动时，吸入腔侧轮齿相互脱开处的齿间容积逐渐增大，压力降低，液体在压差作用下进入齿间。
随着齿轮的转动，一个个齿间的液体被带至排出腔。
这时排出腔侧轮齿啮合处的齿间容积逐渐缩小，而将液体排出。
齿轮泵适用于输送不含固体颗粒、无腐蚀性、粘度范围较大的润滑性液体。
泵的流量可至300米3/时，压力可达3×107帕。
它通常用作液压泵和输送各类油品。
齿轮泵结构简单紧凑,制造容易,维护方便，有自吸能力，但流量、压力脉动较大且噪声大。
齿轮泵必须配带安全阀，以防止由于某种原因如排出管堵塞使泵的出口压力超过容许值而损坏泵或原动机编辑本段齿轮泵的工作原理简介齿轮泵的概念是很简单的，即它的最基本形式就是两个尺寸相同的齿轮在一个紧密配合的壳体内相互齿轮泵啮合旋转，这个壳体的内部类似“8”字形，两个齿轮装在里面，齿轮的外径及两侧与壳体紧密配合。
来自于挤出机的物料在吸入口进入两个齿轮中间，并充满这一空间，随着齿的旋转沿壳体运动，最后在两齿啮合时排出。
在术语上讲，齿轮泵也叫正排量装置，即像一个缸筒内的活塞，当一个齿进入另一个齿的流体空间时，液体就被机械性地挤排出来。
因为液体是不可压缩的，所以液体和齿就不能在同一时间占据同一空间，这样，液体就被排除了。
NP系列微型磁力齿轮泵产品说明
NP系列微型磁力齿轮泵产品说明NP系列微型齿轮泵只有O型圈精密封，不存在动密封失效的风险。
特种加强型PEEK 材料制作的齿轮和轴承，高精度的陶瓷轴，一次注塑成型的齿轮以及具有自主知识产权的特种齿轮型线设计保证了NP系列产品具有超高的使用寿命和耐磨性。
是您在输送小流量，高压，无脉动的腐蚀性液体、磨损性液体、高温液体时的理想选择。
➢产品结构特点:1．特殊的齿轮型线设计自主知识产权的特种齿轮型线设计提供了齿轮出色的耐磨性，几乎纯滚动的齿轮啮合特点可以将齿轮工作时的磨损降至最低。
2．特殊的腔体型线设计可以适应出口压力大范围变动的工况，无论是低压，高压或短时间反转都能很好适应。
3．无脉动的出口压力高精度的零件加工和结构设计保证液体的平稳输送。
4．一次注塑成型的齿轮齿轮的工作齿面采用高精度一次注塑成型工艺，不经过机械加工。
保证了齿轮工作面结构的完整致密，提高了齿轮的耐磨性和寿命5．高精度的陶瓷轴高精度的陶瓷轴具有超强的耐磨性和刚性，在磨损性液体和高压工况下保证泵工作的稳定性，提高产品的寿命。
6. 可长时间干运转自吸在需要利用泵的入口真空度将介质吸入泵内的应用中，NP系列产品可以提供放心的干运转性能，泵不会因为自吸时的干运转而损坏。
7．多种电机可供选择交流防爆，交流变频，单相/三相交流，直流有刷，直流无刷，内置驱动的直流无刷，内置驱动的屏蔽式直流无刷电机可供您选择。
➢产品性能特点:1. 流量: 0.2ml/rev~17ml/rev（20ml/min-51000ml/min）2．输送水情况下压差可达20Bar,系统耐压25Bar3. 工作转速：100~4000rpm4．工作温度范围-40~150摄氏度5．以水为介质，在10Bar以上压差工况下可连续工作10000小时以上。
5Bar以下压力可连续工作20000小时。
6．可连续干运转100小时7．完全干运转情况下入口自吸高度可达4米8. 入口真空度可达-0.83Bar10. 建议泵入口安装5-25微米的过滤器，过大的颗粒会对泵造成不可逆的损坏。
泊姆克齿轮泵马达P5100
18.7 27.9 37.3 46.6 55.9 65.3 74.5 71.9 79.9
齿轮马达 Gear Motors
Displacement
排量
Input Flow
输入�� 流量
Gear Width
齿宽
Inch
Rated Pressure
Max Pressure
2000 RPM ml/rev LPM
FEATURES
High pressure gear pump with maximum pressure up to 3625 PSI 单泵 Displacements from 1.28 cubic inch to 6.43 cubic inch U.S impor ted bearings, thrust plates, ring seals etc, improves reliability SINGLE Patented US and China ring seal design improves per formance and ef ficiency Patented US and China thrust plate design with special sur face treatment and wear coating suppor ts high pressure applications q A wide range of por ting, mounting and shaf t options available for SAE and European standards q Customized single and multiple unit options available q q q q q
液压泵液压缸液压马达的型号及参数以及
液压泵液压缸液压马达的型号及参数以及液压泵、液压缸和液压马达是液压系统中常见的关键组件，下面将介绍它们的型号、参数及特点。
一、液压泵：液压泵是液压系统中的动力源，负责将机械能转换为液压能。
常见的液压泵有齿轮泵、叶片泵、柱塞泵和螺杆泵等。
1. 齿轮泵（Gear Pump）：齿轮泵是一种常用的液压泵，由一对啮合的齿轮构成，可以将液体吸入泵腔并从高压端排出。
其主要参数包括：- 流量：通常以升/分钟（L/min）为单位来表示。
- 压力：通常以巴（bar）为单位来表示。
2. 叶片泵（Vane Pump）：叶片泵是一种较为常见的液压泵，由旋转的叶片和固定的内、外套筒构成。
通过叶片的离心力和压力差，在泵腔内产生液压吸力和压力作用。
其主要参数包括：- 流量：通常以升/分钟（L/min）为单位来表示。
- 压力：通常以巴（bar）为单位来表示。
3. 柱塞泵（Plunger Pump）：柱塞泵是一种高压液压泵，由柱塞、缸体和凸轮机构构成。
通过柱塞的运动，油液在缸体内产生高压，从而产生液压能。
其主要参数包括：- 流量：通常以升/分钟（L/min）为单位来表示。
- 压力：通常以巴（bar）为单位来表示。
4. 螺杆泵（Screw Pump）：螺杆泵是一种容积式液压泵，由转动的螺杆和相应的外壳构成。
通过螺杆的转动和螺旋沟槽之间的间隙，将液体吸入泵腔并排出。
其主要参数包括：- 流量：通常以升/分钟（L/min）为单位来表示。
- 压力：通常以巴（bar）为单位来表示。
二、液压缸：液压缸是液压系统中的执行元件，用于转化液压能为机械能。
常见的液压缸有单作用缸和双作用缸两种。
1.单作用缸：单作用缸通常由一个被称为活塞的组件和一个或多个被称为杆腔的空间组成。
当压力油进入缸腔时，活塞会向一个方向运动，而当压力油释放时，活塞会通过一定的机械装置或外部力量返回原位。
2.双作用缸：双作用缸通常由两个被称为活塞的组件和两个杆腔组成。
当压力油进入一侧的杆腔时，活塞会向一个方向运动，而当压力油进入另一侧的杆腔时，活塞会向相反的方向运动。
齿轮泵知识详解
齿轮泵知识详解一、齿轮泵的概述、齿轮泵是液压系统中广泛采用的一种液压泵，它一般做成定量泵，按结构不同，齿轮泵分为外啮合齿轮泵和内啮合齿轮泵，而以外啮合齿轮泵应用最广。
相互啮合的一对齿轮的齿顶圆柱和两侧端面，靠紧泵壳的内壁，各齿槽与壳体内壁之间围成了一系列互不相通的密封工作空腔K。
由啮合轮齿隔开的D、G腔分别是与泵吸入口和排出口相通的吸入室和排出室。
如图所示（外啮合）。
当齿轮按图所示方向旋转时，由于啮合轮齿逐渐退出啮合状态，使吸入室D的容积逐渐增大，压力降低。
在吸液池液面压力和D腔内低压之间的压差作用下，液体自吸入池经吸液管和泵吸入口进入吸入室D。
随后又进入封闭的工作空间K，并由齿轮的转动被带至排出室G。
因两齿轮轮齿从上侧开始逐渐进入啮合状态，一个齿轮的轮齿逐渐占据另一个齿轮的齿槽空间，使位于上侧的排出室容积逐渐减小，室内液体压力升高，于是从泵排出口排出泵外。
齿轮连续转动，上述吸、排液过程就连续不断进行了。
齿轮泵的最基本形式就是两个尺寸相同的齿轮在一个紧密配合的壳体内相互啮合旋转，这个壳体的内部类似“8”字形，两个齿轮装在里面，齿轮的外径及两侧与壳体紧密配合。
来自于挤出机的物料在吸入口进入两个齿轮中间，并充满这一空间，随着齿的旋转沿壳体运动，最后在两齿啮合时排出。
二、齿轮泵的工作原理齿轮泵的工作原理如图所示，它是分离三片式结构，三片是指泵盖4，8和泵体7，泵体7内装有一对齿数相同、宽度和泵体接近而又互相啮合的齿轮6，这对齿轮与两端盖和泵体形成一密封腔，并由齿轮的齿顶和啮合线把密封腔划分为两部分，即吸油腔和压油腔。
两齿轮分别用键固定在由滚针轴承支承的主动轴12和从动轴15上，主动轴由电动机带动旋转。
齿轮泵的结构如图所示，当泵的主动齿轮按图示箭头方向旋转时，齿轮泵右侧（吸油腔）齿轮脱开啮合，齿轮的轮齿退出齿间，使密封容积增大，形成局部真空，油箱中的油液在外界大气压的作用下，经吸油管路、吸油腔进入齿间。
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齿轮泵（马达）在使用过程中可能出现主轴受径向力的现象，这会使齿轮轴产生弯曲，增加内部磨损，使二次密封环、油封偏磨，直接降低轴承的使用寿命，使泵出现过早的失效。
泊姆克产品根据用户需要采用外置轴承的结构，能帮助齿轮泵在主轴受径向力时减少齿轮轴的变形量，有效地避免了以上情况的发生,从而提高了产品的寿命。
三．产品结构特点
外置轴承
采用精密加工的专利密封环，
来实现固定间隙齿轮泵端面泄油的二次密封。
随着工作压力不断提高，侧板端面处的泄漏着增加，二次密封环前面泄漏油压力也将随之增加，二密封环在泄漏油压力的作用下齿轮轴和泵盖密封端面，使的能力也就越强，弥补固定间隙齿轮泵不能实现密封力随着压力的增加而增加的缺保证了齿轮泵的高效率输出.
三．产品结构特点
二次密封环
二次密封环
基体采用高铅锡青铜材料制作而成，克服了双金属侧板易变形的特点。
另外，侧板内表面经过特殊处理的专利涂层，具有良好的耐磨性、不粘性、耐高、低温性和低摩擦等特性，附着力特佳，不易脱落，非常耐用；并且该涂层能在齿轮泵（马达）缺油或无油状态短时运行时起到自润滑作用，始终保证产品的高效率输出。
三．产品结构特点
专利耐磨侧板。