SGZ-1000^700型中双链式刮板输送机的设计

摘要

刮板输送机的工作原理是，将敞开的溜槽，作为煤炭、矸石或物料等的承受件，将刮板固定在链条上（组成刮板链），作为牵引构件。当机头传动部启动后，带动机头轴上的链轮旋转，使刮板链循环运行带动物料沿着溜槽移动，直至到机头部卸载。刮板链绕过链轮作无级闭合循环运行，完成物料的输送。

刮板输送机是挠性牵引的连续输送机械，是为采煤工作面和采区巷道运煤布置的机械。它的牵引机构是刮板链，承载装置是中部槽，刮板链安装在中部槽的槽面。中部槽沿运输路线全线铺设，刮板链绕经机头、机尾的链轮接成封闭形置于中部槽中，与滚筒采煤机和输送机推移装置配套，实现落煤、装煤、运煤及推移输送机械化。沿输送机全长都可向溜槽中装煤，装入中部槽中的煤被刮板链拖拉，在中部槽内滑行到卸载端卸下。

一般的刮板输送机能在25°以下的条件使用。刮板输送机在使用中要受拉、压、弯曲、冲击摩擦和腐蚀等多种作用，因此，必须有足够的强度、刚度、耐磨和耐腐蚀性。由于它的运输方式是物料和刮板链都在槽内滑行，因此运行阻力和磨损都很大。但是，在采煤工作面运煤，目前还没有更好的机械可代替，只能从结构上、强度上和制造工艺上不断研究，使它更加完善、耐用。

关键词：刮板输送机，减速器，机头部，机尾部，液力联轴器

Scraper conveyor

Working principle of scraper conveyor, will open chute, as coal, waste rock, or material, etc, under the scraper is fixed on the chain (of scraper chain), as a traction components. When the nose drive after start-up, driven chain wheel rotate on the shaft head, make the scraper chain run loop drive the material move along the chute, until to the nose department uninstall. Scraper chain around sprocket for stepless closed cycle operation, complete material conveying.

Scraper conveyor is a reprint of fully coal face ancillary equipment in the transport system an important part of the roadway in the face of the accepted face scraper conveyor unloading of coal flow, not halt the transfer to the retractable belt Conveyor boost. Bridge reversed loader with the face-scraper conveyor machine synchronous over his head, face Shearer guarantee for coal mining, and fully mechanized coal face of high yield and high efficiency operations.

Scraper conveyor is a reprint of a special structure of the scraper conveyor, powertrain and drive and scraper conveyor similar to a ramp of its fuselage and a section of the arch bridge structure and belt conveyors in the tail Paragraph above lap. In the back-alley in the coal face when the machine goes to reprint its arch bridge and all of the aircraft ended the lap belt conveyor stack of position limits, a retractable belt conveyor shortened ride Next length of the belt conveyor for the development of the shift to home-unloading nose reproduced below, can be reproduced with the face of the advance goes forward.

Key words：scraper conveyor；reducer；machine head；aircraft tail；hydraulic coupler。

目录

1 概述 (1)

1.1 刮板输送机简介 (1)

1.2 刮板输送机组成 (2)

1.3 刮板输送机分类 (2)

1.4 刮板输送机的发展现状 (3)

1.5 刮板输送机的发展方向 (4)

1.6 选题研究目的 (6)

2 刮板输送机的工作原理及结构 (7)

2.1 板输送机的工作原理 (7)

2.2 板输送机的主要组成部分 (8)

2.2.1 机头部和机尾部 (8)

2.2.2 溜槽及附件 (10)

2.2.3 刮板链 (12)

2.2.4 链装置 (13)

2.2.5 力联轴器的结构 (16)

2.3 推移装置 (17)

2.4 锚固装置 (18)

3 刮板输送机的结构 (19)

3.1 对刮板输送机的基本要求 (19)

3.2 运输能力 (19)

3.3 运行阻力计算 (20)

3.3.1 基本阻力 (20)

3.3.2 附加阻力 (21)

3.3.3 总运行阻力 (21)

3.4 电动机校核 (22)

3.4.1 对于炮采和人工采煤 (22)

3.4.2 对于机械化采煤 (22)

3.4.3 电动机的选择及其性能特点 (23)

3.4.4 电动机烧损原因分析 (24)

3.5 刮板链强度计算 (25)

3.5.1 最小张力点的张力确定 (25)

3.5.2 逐点张力计算法和张力图 (26)

3.5.3 最小张力点的判定 (26)

3.5.4 刮板链强度计算 (27)

3.5.5 刮板链的破坏和寿命分析 (28)

3.5.6 刮板链的更换 (30)

3.6 紧链力计算 (30)

3.6.1 预紧力的计算 (30)

3.6.2 实际使用中的刮板链的松紧度确定 (31)

3.6.3 液压千斤顶紧张链子机器的结构及其使用 (31)