CN2457398Y - 凸轮式单向超越离合器 - Google Patents

凸轮式单向超越离合器 Download PDF

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Publication number
CN2457398Y
CN2457398Y CN00245258U CN00245258U CN2457398Y CN 2457398 Y CN2457398 Y CN 2457398Y CN 00245258 U CN00245258 U CN 00245258U CN 00245258 U CN00245258 U CN 00245258U CN 2457398 Y CN2457398 Y CN 2457398Y
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China
Prior art keywords
cam body
roller
utility
model
chain
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Expired - Fee Related
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CN00245258U
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English (en)
Inventor
尹明善
刘其观
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LIFANHONGDA INDUSTRY (GROUP) CO LTD CHONGQING
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LIFANHONGDA INDUSTRY (GROUP) CO LTD CHONGQING
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Application filed by LIFANHONGDA INDUSTRY (GROUP) CO LTD CHONGQING filed Critical LIFANHONGDA INDUSTRY (GROUP) CO LTD CHONGQING
Priority to CN00245258U priority Critical patent/CN2457398Y/zh
Priority to PCT/CN2001/000927 priority patent/WO2002046635A1/zh
Priority to AU2002252804A priority patent/AU2002252804A1/en
Application granted granted Critical
Publication of CN2457398Y publication Critical patent/CN2457398Y/zh
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/24—Freewheels or freewheel clutches specially adapted for cycles
    • F16D41/28—Freewheels or freewheel clutches specially adapted for cycles with intermediate wedging coupling members

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

一种适用于摩托车发动机的凸轮式单向超越离合器,其特征是:凸轮本体1的内环呈圆柱形,内经轴套2套装在原车曲轴9上,凸轮本体的外环上套装有起动链轮3和保持架5;保持架外设置有外罩6和阻尼弹簧4,在保持架5内装有滚柱7,该滚柱位于凸轮本体1外环的弧形槽处。本实用新型的起动链轮3不会因曲轴9反转而带动链条反转,从而保护链条不会因受到瞬间冲击力而断裂,它结构简单,使用寿命长,运转可靠,不易失效。

Description

凸轮式单向超越离合器
本实用新型涉及一种适用于摩托车发动机上的超越离合器，尤其是凸轮式单向超越离合器。
目前，摩托车发动机电起动机构单向超越离合器不能起到保护起动链条的作用，它是靠装在缸头凸轮上的减压阀来保护链条。由于在发动机停机时，曲轴会带动起动链轮反转，常常带动链条突然反转，因而链条会因受到瞬间冲击力而断裂或损伤。并且现有的超越离合器易出现本体破裂、弹簧失效等问题。
本实用新型的目的是提供一种凸轮式单向超越离合器，通过取消缸头凸轮上的减压阀，在发动机停机时，起动链轮不会因曲轴而带动链条反转，从而保护链条不会因受到瞬间冲击力而断裂，延长链条的使用寿命。
本实用新型的具体方案是：包括滚柱、外罩、起动链轮、轴套、凸轮本体，其特征在于：凸轮本体的内环呈圆柱形，内经轴套套装在曲轴上，凸轮本体的外环上套装有起动链轮和保持架；保持架外设置有外罩和阻尼弹簧，在保持架内装有滚柱，该滚柱位于凸轮本体外环的弧形槽处。
采用上述方案链轮不会因曲轴反转而反转，不仅能起到保护起动链条的作用，而且结构简单、运转可靠，不易失效。
下面结合实施例对本实用新型进一步说明：
图1是本实用新型的主视图；
图2是图1的A-A剖视图；
图3是图1的左视图。
请看图1、图2、图3，本实用新型由凸轮本体1、轴套2、起动链轮3、阻尼弹簧4、保持架5、外罩6、滚柱7组成。本实用新型的连接关系及结构特征是：凸轮本体1的内环呈圆柱形，内经轴套2套装在原车曲轴9上，凸轮本体1的外环上套装有起动链轮3和保持架5；保持架5外设置有外罩6和阻尼弹簧4，在保持架5内装有滚柱7，该滚柱位于凸轮本体1外环的弧形槽处。
从图2可进一步看到：与滚柱7相接的凸轮本体1弧面段是均布的弧形槽。
本实用新型是这样进行工作的：当起动电机起动时，电机通过链条带动链轮3、单向超越离合器的凸轮本体1旋转，五个滚柱7沿凸轮本体1斜面移动与磁缸内止口8接触，带动磁缸、曲轴9旋转，从而起动发动机；当发动机处于正常工作时，由于保持架5和阻尼弹簧4的作用，五个滚柱7会与磁缸完全脱开；当发动机停机时，如发生曲轴9反转，由于离合器与磁缸完全脱开，不会带动凸轮本体1及起动链轮3反转，从而起到保护链条的作用。

Claims (2)

1．一种凸轮式单向超越离合器，包括滚柱(7)、外罩(6)、起动链轮(3)、轴套(2)、凸轮本体(1)，其特征在于：凸轮本体(1)的内环呈圆柱形，内经轴套(2)套装在曲轴(9)上，凸轮本体(1)的外环上套装有起动链轮(3)和保持架(5)；保持架(5)外设置有外罩(6)和阻尼弹簧(4)，在保持架(5)内装有滚柱(7)，该滚柱位于凸轮本体(1)外环的弧形槽处。
2．根据权利要求1所述的凸轮式单向超越离合器，其特征在于：与滚柱(7)相接的凸轮本体(1)弧面段是均布的弧形槽。
CN00245258U 2000-12-09 2000-12-09 凸轮式单向超越离合器 Expired - Fee Related CN2457398Y (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN00245258U CN2457398Y (zh) 2000-12-09 2000-12-09 凸轮式单向超越离合器
PCT/CN2001/000927 WO2002046635A1 (fr) 2000-12-09 2001-06-11 Roue libre unidirectionnelle a came
AU2002252804A AU2002252804A1 (en) 2000-12-09 2001-06-11 A cam freewheeling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN00245258U CN2457398Y (zh) 2000-12-09 2000-12-09 凸轮式单向超越离合器

Publications (1)

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CN2457398Y true CN2457398Y (zh) 2001-10-31

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CN00245258U Expired - Fee Related CN2457398Y (zh) 2000-12-09 2000-12-09 凸轮式单向超越离合器

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CN (1) CN2457398Y (zh)
AU (1) AU2002252804A1 (zh)
WO (1) WO2002046635A1 (zh)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB859556A (en) * 1956-02-17 1961-01-25 Miller & Company Ltd H Improvements in, or relating to, drive transmission devices
US5099972A (en) * 1985-04-09 1992-03-31 Yamaha Hatsudoki Kabushiki Kaisha One way clutch
AU4981393A (en) * 1993-05-17 1994-12-12 Thk Ment Research Co Ltd Torque limiter

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WO2002046635A1 (fr) 2002-06-13
AU2002252804A1 (en) 2002-06-18

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