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 tolerance 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(热处理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(齿面不得烧伤)
5.pitch line runout and other tooth tolerances are with respect to datum A(节圆跳动和其它齿轮公差均以基准A为测量基准)
6.profile tolerance to be measured between form and chamfer(齿形误差应由渐开线起始(或终止)圆测量至齿顶倒角)
7.min hardness must be achieved in tooth root and fillet region(齿根和圆角处的硬度不得低于硬度下差)
8.root radius tangent to profile not to extend above form diameter(齿根圆角要与齿面相切,而且不能超过渐开线起始(或终止)圆直径。 9.do not thru harden tooth tips(齿尖不得淬透)
齿轮基本术语
齿轮 Toothed gear；Gear 齿面 Tooth flank 长幅内摆线 Prolate hypocycloid 齿轮副 Gear pair 右侧齿面 Right flank 短幅内摆线 Curtate hypocycloid 平行轴齿轮副 Gear pair with parallel axes 左侧齿面 Left flank 渐开线 Involute； Involute to a circle
相交轴齿轮副 Gear pair with intersecting axes 同侧齿面 Corresponding flank 延伸渐开线 Prolate involute
齿轮系 Train of gears 异侧齿面 Opposite flank 缩短渐开线 Curtate involute 行星齿轮系 Planetary gear train 工作齿面 Working flank 球面渐开线 Spherical involute 齿轮传动 Gear drive；Gear transmission 非工作齿面 Non-working flank 渐开螺旋面 Involute helicoid
配对齿轮 Mating gears 相啮齿面 Mating flank 阿基米德螺旋面 Screw helicoid
小齿轮 Pinion 共轭齿面 Conjugate flank 球面渐开螺旋面 Spherical involute helicoid
大齿轮 Wheel；Gear 可用齿面 Usable flank 圆环面 Toroid
主动齿轮 Driving gear 有效齿面 Active flank 圆环面的母圈 Generant of the toroit
从动齿轮 Driven gear 上齿面 Addendum flank 圆环面的中性圈 Middle circle of the toroid
行星齿轮 Planet gear 下齿面 Dedendum flank 圆环面的中间平面 Middle-plane of the toroid
行星架 Planet carrier 齿根过渡曲面 Fillet 圆环面的内圈 Inner circle of the toroid
太阳轮 Sun gear 齿顶 Crest；Top land 啮合干涉 Meshing interference
内齿圈 Ring gear；Annulus gear 槽底 Bottom land 切齿干涉 Cutter interference
外齿轮 External gear 齿廓 Tooth profile 齿廓修型 Profile modification； Profile correction
内齿轮 Internal gear 端面齿廓 Transverse profile 修缘 Tip relief 中心距 Centre distance 法向齿廓 Normal profile 修根 Root relief
轴交角 Shaft angle 轴向齿廓 Axial profile 齿向修形 Axial modification； Longitudinal correction
连心线 Line of centres 背锥齿廓 Back cone tooth profile 齿端修薄 End relief
减速齿轮副 Speed reducing gear pair 齿线 Tooth trace 鼓形修整 Crowning 增速齿轮副 Speed increasing gear pair 齿棱 Tip；Tooth tip 鼓形齿 Crowned teeth
齿数比 Gear ratio 模数 Module 挖根 Undercut
传动比 Transmission ratio 端面模数 Transverse module 瞬时
轴 Instantaneous axis
轴平面 Axial plane 法向模数 Normal module 瞬时接触点 Point of contact 基准平面 Datum plane 轴向模数 Axial module 瞬时接触线 Line of contact 节平面 Pitch plane 径节 Diametral pitch 端面啮合线 Transverse path of contact
端平面 Transverse plane 齿数 Number of teech 啮合曲面 Surface of action 法平面 Normal plane 当量齿数 Virtual number of teeth 啮合平面 Plane of action
分度曲面 Reference surface 头数 Number of starts；Number of threads 啮合区域 Zone of action
节曲面 Pitch surface 螺旋线 Helix；Circular helix 总作用弧 Total arc of transmission
齿顶曲面 Tip surface 圆锥螺旋线 Conical spiral 端面作用弧 Transverse arc of transmission
齿根曲面 Root surface 螺旋角 Helix angle； Spiral angle 纵向作用弧 Overlap arc
基本齿廓 Basic tooth profile 导程 Lead 总作用角 Total angle of transmission
基本齿条 Basic rack 导程角 Lead angle 端面作用角 Transverse angle of transmission
产形齿条 Counterpart rack 阿基米德螺旋线 Archimedes spiral 纵向作用角 Overlap angle
产形齿轮 Generating gear of a gear 外摆线 Epicycloid 总重合度 Total contact ratio
产形齿面 Generating flank 长幅外摆线 Prolate epoicycloid 端面重合度 Transverse ratio
基准线 Datum line 短幅外摆线 Curtate epoicycloid 纵向重合度 Overlap ratio
轮齿 Gear teeth；Tooth 摆线 Cycloid 标准齿轮 Standard gears 齿槽 Tooth space 长幅摆线 Prolate cycloid 非变位齿轮 X-gero gear
右旋齿 Right-hand teeth 短幅摆线 Curtate cycloid 标准中心距 Referencr centre distance
左旋齿 Left-hand teeth 内摆线 Hypocycloid 名义中心距 Nominal centre distance
变位齿轮 Gears with addendum modification；
X-gears 直齿轮 Spur gear 分度圆柱面 Reference cylinder
高度变位圆柱齿轮副 X-gear pair with reference centre distance 斜齿轮 Helical gear；Single-helical gear 节圆柱面 Pitch cylinder
角度变位圆柱齿轮副 X-gear pair with modified centre distance 直齿条 Spur rack 基圆柱面 Basic cylinder
高度变位锥齿轮副 X-gear pair without shaft angle modification 斜齿条 Helical rack 齿顶圆柱面 Tip cylinder
角度变位圆柱齿轮副 X-gear pair with shaft angle modification 人字齿轮 Double-helical gear 齿根圆柱面 Root cylinder