WO2016062260A1 - 一种传动器 - Google Patents

一种传动器 Download PDF

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Publication number
WO2016062260A1
WO2016062260A1 PCT/CN2015/092553 CN2015092553W WO2016062260A1 WO 2016062260 A1 WO2016062260 A1 WO 2016062260A1 CN 2015092553 W CN2015092553 W CN 2015092553W WO 2016062260 A1 WO2016062260 A1 WO 2016062260A1
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Prior art keywords
clutch
worm
tooth
worm wheel
fixed
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PCT/CN2015/092553
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English (en)
French (fr)
Inventor
颜青锋
Original Assignee
金华市禾为工贸有限公司
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Application filed by 金华市禾为工贸有限公司 filed Critical 金华市禾为工贸有限公司
Publication of WO2016062260A1 publication Critical patent/WO2016062260A1/zh

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Classifications

    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly

Definitions

  • the utility model relates to the field of agricultural machinery, and particularly relates to a clutch with labor control, long service life and large torque.
  • the transmission mechanism of small agricultural implements is mostly the transmission mechanism used in old-fashioned agricultural tractors.
  • the clutch control is mostly a cone clutch, because the transmission mechanism is bulky and too bulky. Clutch It is more laborious to control the clutch. Because Small mechanical vehicles such as household lawn mowers, tractors and snow blowers are mostly operated by hand, and require fine control during work. Therefore, it is easy to cause fatigue during long-time laborious clutch control; in addition, mowing, snow removal, etc. There is a high-power power output in the process.
  • the transmission mechanism In order to adapt to the miniaturized agricultural implements, the transmission mechanism is generally oriented toward miniaturization, and the corresponding problem is that the torque is small, the power output of the large torque cannot be realized, and the friction friction in the long-term is repeated. Under the wear, the gears are also prone to wear and reduce the service life of the equipment.
  • the utility model provides an actuator with low clutching control, long service life and large torque.
  • An actuator comprising a worm, a worm gear meshing with the worm, and a detachment from the worm wheel
  • the clutch control assembly includes a meniscus clutch handle disposed outside the dog clutch and a pressure plate coupled to the clutch handle, the pressure plate being slidably sleeved on the drive shaft, a resetting assembly for resetting the toothed clutch is disposed on the transmission shaft, the worm wheel is rotatably sleeved on the transmission shaft by a plane bearing, and inner and outer end faces of the planar bearing are provided for preventing the worm wheel along A washer that moves the drive shaft.
  • the outer edge of the inner end surface of the worm wheel is provided with active teeth, and the toothed clutch is
  • the outer edge of the inner end surface of the device is provided with a driven tooth that meshes with the driving tooth, and the engaging surface of the driven tooth has a certain inclination angle, and the engaging surface of the driving tooth has a certain inclination angle and the driven tooth.
  • the mating surface is adapted.
  • the reset assembly includes a fixed baffle fixed to the drive shaft to
  • the upper end of the worm is provided for connecting with an external power output shaft.
  • the shaft of the worm is provided with a spiral power output tooth, and an outer circumferential end surface of the worm wheel is provided with a transmission tooth that meshes with the power output tooth, and the transmission tooth is a twill tooth.
  • the utility model has the following beneficial effects:
  • the utility model has the advantages of small and compact structure, and is suitable for small mechanical vehicles such as household lawn mowers, tractors and snow removers, and has
  • the characteristics of the clutch control and labor saving are that the meshing force between the worm gear and the driven tooth of the toothed clutch is small and the frictional force is small, the wear amount is reduced, the service life is prolonged, and the torque is large, which satisfies the requirement of high power power output.
  • Figure 1 is a perspective view of the present invention
  • Figure 2 is an exploded view of the present invention.
  • an actuator includes a worm 5 and a worm wheel 1 meshing with the worm 5.
  • a toothed clutch 2 that is in meshing engagement with the worm wheel 1 and a clutch control assembly for controlling the axial movement of the toothed clutch 2 relative to the worm wheel 1.
  • a gear is fixed on the toothed clutch 2
  • the shaft 3 and the worm wheel 1 are rotatably sleeved on the transmission shaft 3.
  • the clutch control assembly includes a meniscus clutch handle 4 disposed outside the toothed clutch 2 and a pressure plate 42 coupled to the clutch handle 4, and the pressure plate 42 is slidably sleeved on the transmission shaft 3.
  • One end of the clutch handle 4 is fixed on the pressure plate 42 to form a fulcrum, and the other end of the clutch handle 4 is provided with a traction hole 41, and a drawbar for pulling the clutch handle 4 can be connected to the traction hole 41, and the clutch handle 4 is horizontally Across the toothed clutch 2, a torque is formed between the fulcrum and the two points of the traction hole 41.
  • a reset assembly for resetting the toothed clutch 2 is provided on the drive shaft 3.
  • Worm gear 1 The plane bearing (not shown) is rotatably sleeved on the transmission shaft 3.
  • the inner and outer end faces of the plane bearing are provided with washers 9.
  • the washer 9 is positioned by a pin 12 provided on the drive shaft 3, and both ends of the drive shaft 3 are sleeved with a positioning sleeve 91.
  • the resetting assembly includes a fixed baffle 7 fixed to the propeller shaft 3 and a return spring 8 sleeved on the propeller shaft 3, the return spring 8 being fixed at one end to the fixed baffle One side of the other end is fixed to the inner end surface of the toothed clutch 2.
  • the worm 5 drives the worm wheel 1 to idle, at which time the drive shaft 3 does not rotate.
  • the clutch handle 4 is pulled to the left, so that the clutch handle 4 drives the pressure plate 42 to move to the left along the transmission shaft 3, and the toothed clutch 2 meshes with the worm wheel 1 under the leftward thrust applied by the pressure plate 42.
  • the return spring 8 is in a compressed state, and the rotating worm wheel 1 drives the toothed clutch 2 engaged therewith to rotate. Since the transmission shaft 3 and the toothed clutch 2 are fixedly connected, the rotating toothed clutch 2 drives the transmission shaft 3 to rotate synchronously, and the power is outputted through the transmission shaft 3. When the rotation is stopped, the clutch handle 4 is released, the return spring 8 returns to the elastic deformation, and under the rightward force, the toothed clutch 2 moves to the right along the transmission shaft 3, at which time the toothed clutch 2 is separated from the worm wheel 1 The worm wheel 1 is idling and the toothed clutch 2 is stopped.
  • the outer edge of the inner end surface of the worm wheel 1 is provided with a driving tooth 13
  • the outer edge of the inner end surface of the toothed clutch 2 is provided with a driven tooth 21 that meshes with the driving tooth 13
  • the engaging surface of the driven tooth 21 has a certain inclination angle
  • the engaging surface of the driving tooth 13 is fitted with a certain inclination angle to the engaging surface of the driven tooth 21, so that the engaging surfaces of the driving tooth 13 and the driven tooth 21 are meshed at a certain inclination.
  • the upper end of the worm 5 is provided with a pulley 6 for connecting with an external power output shaft.
  • the shaft of the worm 5 is provided with a spiral power output tooth 51.
  • the outer circumferential end surface of the worm wheel 1 is provided with the power output tooth 51.
  • the meshing drive teeth 11 are twill teeth.
  • the pulley 6 outputs external power to the worm 5, and then the worm gear 1 is driven by the worm 5, and the toothed clutch 2 engaged therewith is driven.
  • the utility model has the advantages of small and compact structure, and is suitable for small mechanical vehicles such as household lawn mowers, tractors and snow removers, and has
  • the characteristics of the clutch control and labor saving are that the meshing force between the worm gear and the driven tooth of the toothed clutch is small and the frictional force is small, the wear amount is reduced, the service life is prolonged, and the torque is large, which satisfies the requirement of high power power output.

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

Abstract

一种传动器，包括蜗杆（5）、与蜗杆（5）啮合的蜗轮（1）、与蜗轮（1）进行分离啮合的齿形离合器（2）以及用于控制齿形离合器（2）相对蜗轮（1）进行轴向移动的离合控制组件，离合控制组件包括设在齿形离合器（2）外侧的弯月状离合把手（4）以及与该离合把手（4）连接的压板（42），压板（42）可滑动地套设在传动轴（3）上，在传动轴（3）上还设有用于使齿形离合器（2）复位的复位组件，该复位组件包括固定在传动轴（3）上的固定挡板（7）以及套设在传动轴（3）上的复位弹簧（8），蜗轮（1）的内端面的外缘设有主动齿（13），齿形离合器（2）的内端面外缘设有从动齿（21），主动齿（13）和从动齿（21）的啮合面均呈一定倾角。该传动器具备离合控制省力，主动齿和从动齿啮合紧密相对摩擦力小，扭矩大的优点。

Description

一种传动器 一种传动器
技术领域
本实用新型 涉及农用机具领域， 具体涉及一 种离合控制省力，使用寿命长且扭矩大的传动器。
背景技术
目前小型农用机具，特别是家用割草机、拖拉机和除雪机等机械车辆的传动机构多为老式农用拖拉机用的传动机构，其离合控制多采用锥形离合器，因传动机构体积大和过于笨重使得锥形离合器 在控制离合时较为费力。因 家用割草机、拖拉机和除雪机等小型机械车辆大都是靠人手操作，且工作中需精细控制，因此长时间地进行费力地离合控制很容易造成操作疲劳；另外，割草搬运、除雪等工作过程存在大功率的动力输出，为适应小型化的农用机具，传动机构也一般朝向小型化发展，而相应的带来的问题就是扭矩小，不能实现大扭矩的动力输出，在长期反复的啮合摩擦下，齿轮之间也容易发生磨损，降低设备的使用寿命。
实用新型内容
为了解决上述技术存在的缺陷，本实用新型提供 一种 离合控制省力，使用寿命长且扭矩大的传动器 。
本实用新型实现上述技术效果所采用的技术方案是：
一种 传动器，包括蜗杆、与所述蜗杆啮合的蜗轮、与所述蜗轮进行分离啮
合的齿形离合器以及用于控制所述齿形离合器相对所述蜗轮进行轴向移动的离合控制组件，所述齿形离合器上固定有传动轴，所述蜗轮可转动地套设在该传动轴上，其中，所述离合控制组件包括设在所述齿形离合器外侧的弯月状离合把手以及与该离合把手连接的压板，所述压板可滑动地套设在所述传动轴上，所述传动轴上设有用于使所述齿形离合器复位的复位组件，所述蜗轮通过平面轴承可转动地套设在所述传动轴上，所述平面轴承的内外端面设有用于防止所述蜗轮沿着所述传动轴移动的垫圈。
上述的一种传动器，所述蜗轮的内端面的外缘设有主动齿，所述齿形离合
器的内端面外缘设有与所述主动齿相啮合的从动齿，所述从动齿的啮合面向外呈一定倾角，所述主动齿的啮合面向内成一定倾角与所述从动齿的啮合面适配。
上述的一种传动器，所述复位组件包括固定在所述传动轴上的固定挡板以
及套设在所述传动轴上的复位弹簧，所述复位弹簧一端固定在所述固定挡板的一侧，另一端固定在所述齿形离合器的内端面。
上述的一种传动器，所述蜗杆的上端设有用于与外部动力输出轴相连接的
皮带轮，所述蜗杆的轴杆上设有螺旋状的动力输出齿，所述蜗轮的外圆周端面上设有与该动力输出齿相啮合的传动齿，所述传动齿为斜纹齿。
本实用新型的有益效果为： 本实用新型结构小巧紧凑，适用于 家用割草机、拖拉机和除雪机等小型机械车辆，具有 离合控制省力的特点，蜗轮的主动齿和齿形离合器的从动齿之间啮合紧密相对摩擦力小，降低了磨损量，延长了使用寿命，同时扭矩大，满足了大功率的动力输出要求。
附图说明
图1为本实用新型的立体图；
图2为本实用新型的爆炸图。
图中：1- 蜗轮 、2- 齿形离合器 、3- 传动轴 、4- 离合把手 、5- 蜗杆 、6- 皮带轮 、7- 固定挡板 、8-复位弹簧、9- 平面轴承、 11- 传动齿 、12-销轴、13-主动齿、21- 从动齿 、41-牵引孔、42-压板、51- 动力输出齿 、9-垫圈、91-定位轴套。
具体实施方式
为使对本实用新型作进一步的了解，下面参照说明书附图和具体实施例对
本实用新型作进一步说明，为便于理解，下文中关于左右方位的表述，均以附图2中的方位为参考基准：
如图1和图2所示，一种传动器，包括蜗杆5、与蜗杆5啮合的蜗轮1、
与该蜗轮1进行分离啮合的齿形离合器2以及用于控制齿形离合器2相对蜗轮1进行轴向移动的离合控制组件。齿形离合器2上固定有 传动 轴3，蜗轮1可转动地套设在该传动轴3上。其中，离合控制组件包括设在齿形离合器2外侧的弯月状的离合把手4以及与该离合把手4连接的压板42，压板42可滑动地套设在传动轴3上。离合把手4的一端固定在压板42上，构成一支点，离合把手4的另一端设有牵引孔41，用于牵拉离合把手4的牵引杆可连接在该牵引孔41上，离合把手4横跨在齿形离合器2上，在支点和牵引孔41两点之间构成一扭矩。为使齿形离合器2可进行灵活复位，传动轴3上设有用于使该齿形离合器2复位的复位组件。 蜗轮 1 通过平面轴承（图中未示出）可转动地套设在传动轴3上，为防止蜗轮1沿着传动轴3向左移动，该平面轴承的内外端面均设有垫圈9。垫圈9通过设在传动轴3上的销轴12进行定位，传动轴3的两端均套设有定位轴套91。
具体的，在本实用新型的优选实施例中，复位组件包括固定在传动轴3上的固定挡板7以及套设在传动轴3上的复位弹簧8，该复位弹簧8一端固定在固定挡板7的一侧，另一端固定在齿形离合器2的内端面。在初始启动时，蜗杆5带动蜗轮1空转，此时，传动轴3不发生转动。作动力输出时，向左拉动离合把手4，使离合把手4带动压板42沿着传动轴3向左运动，齿形离合器2在压板42施加的向左的推力下与蜗轮1进行啮合，此时，复位弹簧8处于被压缩状态，转动的蜗轮1带动与之啮合的齿形离合器2转动。因传动轴3与齿形离合器2为固定连接，因此，转动的齿形离合器2带动传动轴3同步转动，通过传动轴3向外输出动力。在停转时，松开离合把手4，复位弹簧8恢复弹性形变，在向右的作用力下，齿形离合器2沿着传动轴3向右运动，此时，齿形离合器2与蜗轮1分离，蜗轮1空转，齿形离合器2停转。
进一步地，在本实用新型的优选实施例中，蜗轮1的内端面的外缘设有主动齿13，齿形离合器2的内端面外缘设有与主动齿13相啮合的从动齿21，从动齿21的啮合面向外呈一定倾角，主动齿13的啮合面向内成一定倾角与从动齿21的啮合面适配，使得主动齿13和从动齿21的啮合面均呈一定倾角啮合。在两者啮合时，主动齿13和从动齿21可牢固紧密地啮合在一起，不会发生相对摩擦，极大地降低了磨损量。蜗杆5的上端设有用于与外部动力输出轴相连接的皮带轮6，蜗杆5的轴杆上设有螺旋状的动力输出齿51，蜗轮1的外圆周端面上设有与该动力输出齿51相啮合的传动齿11，传动齿11为斜纹齿。传动时，皮带轮6将外部动力输出至蜗杆5上，然后通过蜗杆5对蜗轮1进行驱动，并使与其啮合的齿形离合器2传动。
综上所述， 本实用新型结构小巧紧凑，适用于 家用割草机、拖拉机和除雪机等小型机械车辆，具有 离合控制省力的特点，蜗轮的主动齿和齿形离合器的从动齿之间啮合紧密相对摩擦力小，降低了磨损量，延长了使用寿命，同时扭矩大，满足了大功率的动力输出要求。
以上显示和描述了本实用新型的基本原理、主要特征和本实用新型的优点。本行业的技术人员应该了解，本实用新型不受上述实施例的限制，上述实施例和说明书中描述的只是本实用新型的原理，在不脱离本实用新型精神和范围的前提下本实用新型还会有各种变化和改进，这些变化和改进都落入要求保护的本实用新型的范围内，本实用新型要求的保护范围由所附的权利要求书及其等同物界定。

Claims (4)

  1. 一种传动器，包括蜗杆、与所述蜗杆啮合的蜗轮、与所述蜗轮进行分离啮合的齿形离合器以及用于控制所述齿形离合器相对所述蜗轮进行轴向移动的离合控制组件，所述齿形离合器上固定有传动轴，所述蜗轮可转动地套设在该传动轴上，其特征在于，所述离合控制组件包括设在所述齿形离合器外侧的弯月状离合把手以及与该离合把手连接的压板，所述压板可滑动地套设在所述传动轴上，所述传动轴上设有用于使所述齿形离合器复位的复位组件，所述蜗轮通过平面轴承可转动地套设在所述传动轴上，所述平面轴承的内外端面设有用于防止所述蜗轮沿着所述传动轴移动的垫圈。
  2. 根据权利要求1所述的一种传动器，其特征在于，所述蜗轮的内端面的外缘设有主动齿，所述齿形离合器的内端面外缘设有与所述主动齿相啮合的从动齿，所述从动齿的啮合面向外呈一定倾角，所述主动齿的啮合面向内成一定倾角与所述从动齿的啮合面适配。
  3. 根据权利要求1所述的一种传动器，其特征在于，所述复位组件包括固定在所述传动轴上的固定挡板以及套设在所述传动轴上的复位弹簧，所述复位弹簧一端固定在所述固定挡板的一侧，另一端固定在所述齿形离合器的内端面。
  4. 根据权利要求1所述的一种传动器，其特征在于，所述蜗杆的上端设有用于与外部动力输出轴相连接的皮带轮，所述蜗杆的轴杆上设有螺旋状的动力输出齿，所述蜗轮的外圆周端面上设有与该动力输出齿相啮合的传动齿，所述传动齿为斜纹齿。
PCT/CN2015/092553 2014-10-22 2015-10-22 一种传动器 WO2016062260A1 (zh)

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Application Number Priority Date Filing Date Title
CN201420613145.4U CN204253738U (zh) 2014-10-22 2014-10-22 一种传动器
CN201420613145.4 2014-10-22

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WO2016062260A1 true WO2016062260A1 (zh) 2016-04-28

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CN107387591A (zh) * 2017-08-09 2017-11-24 南通威而多专用汽车制造有限公司 用于联动标线机撒播器的按压式离合器
CN110382911A (zh) * 2017-09-30 2019-10-25 常熟市平方轮椅有限公司 一种轮椅用蜗杆传动机构
CN110402340A (zh) * 2017-09-30 2019-11-01 常熟市平方轮椅有限公司 一种轮椅用可调控蜗杆传动机构

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CN204253738U (zh) * 2014-10-22 2015-04-08 金华市禾为工贸有限公司 一种传动器
CN110608312B (zh) * 2019-10-12 2024-05-10 特瑞斯能源装备股份有限公司 一种翻板式切断阀阀板开启机构

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EP1800016A1 (en) * 2004-09-23 2007-06-27 MTD Products Inc. Transmission for walk-behind lawn mower
US20100206680A1 (en) * 2009-02-18 2010-08-19 Shunchi Crankshaft Co., Ltd. Shaft rotating mechanism for mower
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CN110382911A (zh) * 2017-09-30 2019-10-25 常熟市平方轮椅有限公司 一种轮椅用蜗杆传动机构
CN110402340A (zh) * 2017-09-30 2019-11-01 常熟市平方轮椅有限公司 一种轮椅用可调控蜗杆传动机构
CN110402340B (zh) * 2017-09-30 2022-05-31 常熟市平方轮椅有限公司 一种轮椅用可调控蜗杆传动机构

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