齿轮参数英文

EXTERNAL SPUR GEAR DATA（外圆柱齿轮参数）manufacturing data（制造参数）

part number（零件号）

tooth form（齿面）

gear type（齿轮类型）

number of teeth（齿数）

normal module（法向模数）

normal pressure angle (at ref circle)法向压力角（在分度圆上）

helix angle (at ref circle)螺旋角（在分度圆上）

helical lead（螺旋导程）

hand of helix（旋向）

reference face width（参考齿宽）

outside diameter（齿顶圆直径）

chamfer diameter（倒圆直径）

reference(pitch)circle diameter（分度圆直径）或节圆start of active profile diameter有效渐开线起始圆直径form diameter 展成直径

root diameter齿根圆直径

base circle diameter基圆直径

whole depth全齿高

normal circular tooth thickness (at reference circle)法向

弧齿厚（在分度圆上）

root type齿根形式

root fillet radius 齿根圆角半径

lead crown齿向鼓形

HOB DATA滚刀参数

pressure angle压力角

tooth thickness at reference line分圆齿厚protuberance凸角

tip radius齿顶圆半径

reference part number 零件号

INSPECTION DATA检验数据

profile tolerance and modifications齿形公差和修形profile hollow齿形中凹

refernce pitch circle runout节圆跳动

pitch variation齿距偏差

lead variation齿向偏差

lead hollow齿向中凹

profile surface finish渐开线齿面精加工

ball diameter量球直径

dimension over two balls in same plane跨棒距REFERENCE DATA-MATING GEAR对啮齿的参考参数

normal center distance 中心距

mating gear part number对啮齿轮零件号

mumber of teeth on mating gear对啮轮齿数

backlash (nominal CD ,ROOM TEMP)侧隙(法线方向，室温)

general notes(通用技术要求)

1.DO not scale drawing(不要在图上量取尺寸)

2.all surfaces corners and edges must be free from burrs

and sharp edges-break 0.075 MM MAX(所有面,角和边不能有毛刺,锐边倒钝不超过0.075mm)

3.unless otherwise stated(除非特别注明,否则)

A.all dimensions and toleranceing are in millimeters per

chinese standard(所有以毫米为单位的尺寸和公差均按中国标准)

B.all surface finishes to be 3.2 micrometer or better(所有表面粗糙度不应低于3.2)

C.all dimension are finished dimensions;no allowance has been

made for any change in maximum or least

material condition

due to heat treatment(所有尺寸均为最终尺寸;热处理导致的最大或最小实体条件的变化不应超出允差)

D linear dimensions to be +/- 0.25 MM(线性尺寸偏差为+/- 0.25 MM)

E angular dimensions to be +/- 0.5º(角度尺寸偏差为+/- 0.5º)

4.mark part number as shown(如图作零件号)

5.mark serial number as shown(如图作系列号)

6.heat treatment to be applied to all surfaces(整体热处理)

gear notes(齿轮技术要求)

1.do not grind roots and fillets after heat treatment(热后不得磨及齿根和圆角)

2.no steps or grooves permissible in root and fillet region after

honing or grinding(珩磨后,齿根和圆角区域不允许有台阶或凹痕)

3.profile tolerance based upon floating band fit(齿形误差应以公差带为计)

4.gear must be free from grind burns and tempering(齿