CN106438850A - 多齿点啮合的环面蜗杆传动副 - Google Patents

多齿点啮合的环面蜗杆传动副 Download PDF

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CN106438850A
CN106438850A CN201611082894.9A CN201611082894A CN106438850A CN 106438850 A CN106438850 A CN 106438850A CN 201611082894 A CN201611082894 A CN 201611082894A CN 106438850 A CN106438850 A CN 106438850A
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worm
tooth surface
tooth
involute
theta
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CN106438850B (zh
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陈永洪
罗文军
陈燕
张光辉
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Chongqing University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H1/00Toothed gearings for conveying rotary motion
    • F16H1/02Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02Toothed members; Worms
    • F16H55/08Profiling
    • F16H55/0806Involute profile
    • F16H55/0813Intersecting-shaft arrangement of the toothed members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02Toothed members; Worms
    • F16H55/22Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)
  • Gear Transmission (AREA)

Abstract

本发明公开了一种多齿点啮合的环面蜗杆传动副,包括蜗轮和蜗杆,所述蜗轮为渐开线齿轮结构,所述蜗杆为平面包络环面蜗杆结构;所述蜗轮的齿面为渐开线拉伸形成的渐开面,渐开线由发生线在基圆上做纯滚动产生;所述蜗杆的齿面由包络母面绕基圆旋转而包络形成;本发明具有传动比范围大、齿面均采用硬齿面精确磨削、承载能力高、传动可靠性高、易实现高精度加工、中心距可分、基圆半径可变、对制造及装配误差不敏感等优点,适用于电梯曳引机、机床分度台、工业机器人、雷达和火炮俯仰及回转系统等大速比精密重载设备中。

Description

多齿点啮合的环面蜗杆传动副
技术领域
本发明涉及一种环面蜗杆传动副,特别涉及一种多齿点啮合的环面蜗杆传动副。
背景技术
蜗杆传动属于交错轴传动,具有结构紧凑、传动平稳、噪音低及运动误差小等特点,而广泛应用于航空航天、船舶航海、矿山冶金、轨道交通、国防武器等领域。但是,目前蜗轮均采用蜗轮滚刀滚切加工,齿面光洁度及精度较低,为了保证良好的跑合性能蜗轮材质常采用软齿面材料,使得蜗杆传动副精度较差、承载能力不高;同时,蜗杆传动副为线接触,对制造及装配误差极为敏感。
发明内容
有鉴于此,本发明的目的在于提供一种多齿点啮合的环面蜗杆传动副,具有较高的精度和承载能力,对中心距及基圆半径等制造及装配误差不敏感。
本发明的多齿点啮合的环面蜗杆传动副,包括蜗轮和蜗杆,所述蜗轮为渐开线齿轮结构,所述蜗杆为平面包络环面蜗杆结构;所述蜗轮的齿面为渐开线拉伸形成的渐开面,渐开线由发生线在基圆上做纯滚动产生;所述蜗杆的齿面由包络母面绕基圆旋转而包络形成;
所述蜗轮采用硬齿面耐磨材料磨削成形,所述蜗轮的齿面方程为:
其中,为渐开线齿轮的基圆半径,θ为渐开线展角,h为齿面轴向参数,T为向量转置;
所述蜗杆采用硬齿面耐磨材料磨削成形,所述蜗杆的齿面方程为:
其中,
为工具齿轮的基圆半径,a为展成中心距,v为包络母面参数,为工具齿轮转动角位移,T为向量转置,w为蜗杆坐标系符号,为蜗杆专家,i12为成形传动比。
本发明的有益效果:本发明的多齿点啮合的环面蜗杆传动副,蜗轮和蜗杆均采用硬齿面材料制成且能够轻易精确磨削,传动副具有多对齿同时啮合,每对共轭齿面之间为点啮合,对中心距及基圆半径等制造及装配误差不敏感;本发明具有传动比范围大、齿面均采用硬齿面精确磨削、承载能力高、传动可靠性高、易实现高精度加工、中心距可分、基圆半径可变、对制造及装配误差不敏感等优点,适用于电梯曳引机、机床分度台、工业机器人、雷达和火炮俯仰及回转系统等大速比精密重载设备中。
附图说明
下面结合附图和实施例对本发明作进一步描述:
图1为本发明的结构示意图;
图2为本发明的蜗轮的齿面结构图;
图3为本发明的蜗杆的齿面成形原理图;
图4为本发明的媒介齿轮的齿面结构图;
图5为本发明的蜗轮与蜗杆齿面间啮合特性图。
具体实施方式
如图所示:本实施例的多齿点啮合的环面蜗杆传动副,包括蜗轮1和蜗杆2,所述蜗轮1为渐开线齿轮结构,所述蜗杆2为平面包络环面蜗杆结构;所述蜗轮1的齿面为渐开线5拉伸形成的渐开面6,渐开线5由发生线4在基圆3上做纯滚动产生;所述蜗杆2的齿面由包络母面8绕基圆7旋转而包络形成;
所述蜗轮1采用硬齿面耐磨材料磨削成形,所述蜗轮1的齿面方程为:
其中,为渐开线齿轮的基圆半径,θ为渐开线展角,h为齿面轴向参数,T为向量转置;
所述蜗杆2采用硬齿面耐磨材料磨削成形,所述蜗杆2的齿面方程为:
其中,
为工具齿轮的基圆半径,a为展成中心距,v为包络母面参数,为工具齿轮转动角位移,T为向量转置,w为蜗杆坐标系符号,为蜗杆专家,i12为成形传动比。
如图4和图5所示,为便于理解,在传动副啮合面之间可设置一个媒介齿轮,媒介齿轮为一虚拟存在的齿轮,该媒介齿轮齿面10为平面并与基圆9相切,媒介齿轮的齿面方程为:
其中,为工具齿轮的基圆半径,u和v为包络母面参数,δ为平面起始角,T为向量转置;
蜗轮1与媒介齿轮之间沿轴向呈多齿线接触,蜗轮1的渐开面6与媒介齿轮齿面10的接触线11沿轴向分布;媒介齿轮与蜗杆2之间沿径向呈多齿线接触,蜗杆2的齿面与媒介齿轮齿面10的接触线12沿径向分布;抽除媒介齿轮齿厚后,在媒介齿轮齿面10上,接触线11与接触线12的交点为蜗轮1与蜗杆2的接触点13,传动副呈多齿点啮合。
最后说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的宗旨和范围,其均应涵盖在本发明的权利要求范围当中。

Claims (1)

1.一种多齿点啮合的环面蜗杆传动副,包括蜗轮和蜗杆,所述蜗轮为渐开线齿轮结构,所述蜗杆为平面包络环面蜗杆结构;所述蜗轮的齿面为渐开线拉伸形成的渐开面,渐开线由发生线在基圆上做纯滚动产生;所述蜗杆的齿面由包络母面绕基圆旋转而包络形成;其特征在于:
所述蜗轮采用硬齿面耐磨材料磨削成形,所述蜗轮的齿面方程为:
r i ( θ , h ) = r b i s i n θ - r b i θ c o s θ r b i c o s θ + r b i θ s i n θ h T
其中,为渐开线齿轮的基圆半径,θ为渐开线展角,h为齿面轴向参数,T为向量转置;
所述蜗杆采用硬齿面耐磨材料磨削成形,所述蜗杆的齿面方程为:
其中,
为工具齿轮的基圆半径,a为展成中心距,v为包络母面参数,为工具齿轮转动角位移,T为向量转置,w为蜗杆坐标系符号,为蜗杆转角,i12为成形传动比。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107965550A (zh) * 2017-11-29 2018-04-27 海安县申菱电器制造有限公司 一种弧形面接触蜗轮蜗杆传动动力装置
CN111536218A (zh) * 2020-05-15 2020-08-14 重庆大学 点线演化环面蜗杆传动副及其工作方式
CN111750069A (zh) * 2020-07-14 2020-10-09 纳密智能科技(东莞)有限公司 消隙平面包络环面蜗轮结构、蜗轮消隙方法及加工方法

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* Cited by examiner, † Cited by third party
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US4922781A (en) * 1985-08-24 1990-05-08 Shen Peiji Cycloidal equidistant curved gear transmission mechanism and its device
CN2079685U (zh) * 1990-02-14 1991-06-26 中国迅达电梯有限公司北京电梯厂 包络渐开线齿廓圆柱蜗杆传动机构
JPH03223558A (ja) * 1989-11-06 1991-10-02 Mitsubishi Heavy Ind Ltd 鼓形ウオームギヤ
CN1184219A (zh) * 1997-12-29 1998-06-10 赵翼瀚 点-线接触偏置蜗杆传动装置及其制造方法
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CN103047393A (zh) * 2012-12-29 2013-04-17 重庆大学 基于共轭曲线的蜗杆、蜗轮及其啮合副
CN103742601A (zh) * 2014-01-10 2014-04-23 西华大学 精密重载型变齿厚渐开线齿轮包络环面蜗杆传动

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922781A (en) * 1985-08-24 1990-05-08 Shen Peiji Cycloidal equidistant curved gear transmission mechanism and its device
JPH03223558A (ja) * 1989-11-06 1991-10-02 Mitsubishi Heavy Ind Ltd 鼓形ウオームギヤ
CN2079685U (zh) * 1990-02-14 1991-06-26 中国迅达电梯有限公司北京电梯厂 包络渐开线齿廓圆柱蜗杆传动机构
CN1184219A (zh) * 1997-12-29 1998-06-10 赵翼瀚 点-线接触偏置蜗杆传动装置及其制造方法
CN101145247A (zh) * 2006-06-06 2008-03-19 上海师范大学 渐开面包络环面蜗杆及蜗轮的三维实体建模方法
CN103047393A (zh) * 2012-12-29 2013-04-17 重庆大学 基于共轭曲线的蜗杆、蜗轮及其啮合副
CN103742601A (zh) * 2014-01-10 2014-04-23 西华大学 精密重载型变齿厚渐开线齿轮包络环面蜗杆传动

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107965550A (zh) * 2017-11-29 2018-04-27 海安县申菱电器制造有限公司 一种弧形面接触蜗轮蜗杆传动动力装置
CN111536218A (zh) * 2020-05-15 2020-08-14 重庆大学 点线演化环面蜗杆传动副及其工作方式
CN111750069A (zh) * 2020-07-14 2020-10-09 纳密智能科技(东莞)有限公司 消隙平面包络环面蜗轮结构、蜗轮消隙方法及加工方法

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