WO2013139294A1 - 自动压紧摩擦传动减速装置 - Google Patents

自动压紧摩擦传动减速装置 Download PDF

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Publication number
WO2013139294A1
WO2013139294A1 PCT/CN2013/073029 CN2013073029W WO2013139294A1 WO 2013139294 A1 WO2013139294 A1 WO 2013139294A1 CN 2013073029 W CN2013073029 W CN 2013073029W WO 2013139294 A1 WO2013139294 A1 WO 2013139294A1
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Prior art keywords
ring
compression
planetary
shaft
inner ring
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PCT/CN2013/073029
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English (en)
French (fr)
Inventor
刘钧
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Zhejiang Chaoji Electric Tech Co Ltd
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Zhejiang Chaoji Electric Tech Co Ltd
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Priority claimed from CN2012201167910U external-priority patent/CN202484231U/zh
Priority claimed from CN201210081865.6A external-priority patent/CN103322147B/zh
Application filed by Zhejiang Chaoji Electric Tech Co Ltd filed Critical Zhejiang Chaoji Electric Tech Co Ltd
Priority to KR1020147026588A priority Critical patent/KR20140129260A/ko
Priority to JP2015502073A priority patent/JP5893206B2/ja
Priority to US14/386,883 priority patent/US9541175B2/en
Priority to AU2013236890A priority patent/AU2013236890B2/en
Priority to EP13764832.5A priority patent/EP2829768B1/en
Publication of WO2013139294A1 publication Critical patent/WO2013139294A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F16H—GEARING
    • F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
    • F16H13/06—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members with members having orbital motion
    • F16H13/08—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members with members having orbital motion with balls or with rollers acting in a similar manner
    • 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
    • F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
    • F16H13/10—Means for influencing the pressure between the members
    • F16H13/14—Means for influencing the pressure between the members for automatically varying the pressure mechanically
    • 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
    • F16H57/08—General details of gearing of gearings with members having orbital motion

Definitions

  • the invention belongs to the field of motor deceleration driving components, in particular to an automatic compression friction transmission deceleration device.
  • the frictional pressure of the existing friction transmission reduction device is preset and constant, and the pressure is always constant regardless of the load torque. This causes a large friction loss and a large torque, which may cause the setting to exceed the setting. The torque causes slipping and burns out, and as the wear and tear increases, the torque of the system becomes smaller and smaller, and eventually it fails. Therefore, the industry hopes to develop a tool that can automatically adjust the friction according to the magnitude of the load torque. Force friction drive reduction gear.
  • the object of the present invention is to overcome the above drawbacks, and to provide a real-time automatic adjustment of the frictional force according to the magnitude of the load torsion force, which can greatly reduce the friction loss, improve the efficiency of the friction transmission reduction device, and prolong the life of the friction transmission reduction device.
  • Automatic compression friction drive reduction gear
  • an automatic compression friction transmission reduction device which is characterized in that the device comprises a central shaft, a planetary wheel and a compression ring inner ring and a compression ring outer ring which are arranged outside the planetary wheel.
  • the central axis is a cylinder
  • the planetary gear is disc-shaped
  • the largest circumferential part of the planetary gear is a plane outer circle
  • the two sides are processed into a slope with a certain inclination
  • the planetary wheel is installed with a planetary shaft and a planet.
  • the shaft is fixed on the outer casing, and a needle roller is arranged between the planetary shaft and the planetary wheel to reduce the frictional resistance.
  • the inner ring and the outer ring of the compression ring are provided with a large pitch multi-start thread, which can perform relative rotational movement in the inner ring of the compression ring and
  • the inner inner surface of the outer ring is processed into a slope having the same inclination as both sides of the planetary wheel, and a tension spring is arranged between the inner ring and the outer ring of the compression ring to set a small pressure on the device in advance, and Prevent the two pieces of compression ring from coming loose.
  • the present invention also includes the following technical solutions.
  • the two sides of the planetary gear, the inner ring of the compression ring and the inner side of the inner surface of the outer ring of the compression ring are processed into inclined surface friction surfaces of the same angle, and the planetary wheels are provided with spacers on both sides to reduce the planetary gears. Wear between the casing and the casing.
  • the outer end surface of the planetary shaft is provided with a positioning piece, and the positioning piece is fixed on the outer casing by screws.
  • the automatic compression friction transmission speed reduction device can fix the planetary shaft on the outer casing, and the inner ring of the compression ring or the outer ring of the compression ring is used as an output end, and the inner ring of the compression ring or the outer ring of the compression ring can also be used. Solid on the outer casing, with the planet wheel and planet shaft as the output.
  • the invention can achieve the following beneficial effects: the invention can automatically adjust the friction pressure in real time according to the magnitude of the load torque, reduce the friction loss, greatly improve the load capacity, improve the efficiency of the friction transmission, and maintain the advantages of low noise and low vibration of the friction transmission.
  • the inner ring or the outer ring of the compression ring can be fixed on the outer casing according to different requirements of use, and the planetary shaft is used as the output end.
  • the invention has simple structure and reliable operation, and the invention has achieved good effects through actual installation and use.
  • Figure 1 is a cross-sectional view of the present invention.
  • FIG. 2 is a front view and a working principle diagram of the present invention after the positioning generation is removed.
  • Figure 3 is a side elevational view of the inner ring of the compression ring of the present invention.
  • the present invention includes a central shaft 1 , three planetary gears 2 and a compression ring inner ring that is fitted to the outside of the planetary gear 2 And the outer ring of the compression ring 4, the central shaft 1, the planetary gear 2, the inner ring of the compression ring 3 and the outer ring 4 of the compression ring are all made of high-strength wear-resistant steel; the central shaft 1 is a cylinder, and the planetary gear 2 In the shape of a disk, the largest circumferential portion of the planet gear 2 is a plane outer circle, and the two sides are processed into a slope having a certain inclination.
  • One planetary shaft 6 is mounted in the middle of the planetary wheel, and the planetary shaft 6 is fixed on the outer casing 8.
  • Planetary wheel 2 A spacer 9 is provided on both sides, and a needle roller 7 is provided between the planetary shaft 6 and the planetary gear 2 to reduce frictional resistance, and the inner ring 3 and the outer ring 4 are compressed. It is equipped with a large-pitch multi-start thread for relative rotational movement; it is machined on the inner inner surface of the inner ring 3 and the outer ring 4 of the compression ring to have the same slope as the sides of the planetary gear, in the inner ring of the compression ring 3 And outer ring 4 A tension spring 5 is arranged between the two to pre-set a small pressure on the device and prevent the two compression rings from being loosened.
  • the outer end surface of the planetary gear 2 is provided with a positioning piece 10, and the positioning piece 10 is provided with a screw 11 Fixed in the outer casing 8 on.
  • the installation process of the present invention is: firstly, the planetary shaft 6 is fixedly mounted on the outer casing 8, and the central shaft 1 is a power input shaft, and the inner ring of the compression ring is first loaded. 3, then install the spacer 9, the planetary gear 2, the needle roller 7 and the spacer 9 on the planetary shaft 6, and then screw the outer ring 4 of the compression ring on the inner ring 3 of the compression ring, in the inner ring of the compression ring 3 and outer ring 4
  • the pretensioning tension spring 5 is installed between the two, and finally the positioning piece 10 is fixed on the outer casing 8 with the screw 11 to prevent the axial movement of the planetary gears.
  • the present invention is assembled, and the present embodiment is to press the outer ring of the ring 4 As a power output, it is also possible to fix the inner ring 3 or the outer ring 4 of the compression ring to the outer casing 8 with the planet gear 2 and the planet shaft 6 as outputs.
  • the middle plane acts on the central shaft 1 to increase the friction pressure of the entire friction reduction gear.
  • the pitch of the multi-start thread is large (generally should be greater than 7 degrees), and the inner ring of the compression ring 3 and Outer ring The tightening state cannot be maintained between 4, and the frictional pressure of the entire friction reducing device is also reduced. If the direction of rotation of the input shaft is opposite to the direction of rotation described above, the inner ring 3 of the compression ring and the outer ring of the compression ring 4 The direction of rotation between the threads should also be reversed.
  • the present invention can be used as a transmission device for a deceleration transmission in an automobile, a machine, a motor, an engine or the like, and has an automatic friction adjustment in real time according to the magnitude of the load torque, and the noise is low.
  • the advantages of large reduction ratio, not easy to slip, high transmission efficiency, long service life, etc., can achieve significant economic and social benefits after implementation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)

Description

自动压紧摩擦传动减速装置
技术领域
本发明属于电机减速驱动零部件领域，尤其与一种自动压紧摩擦传动减速装置有关。
背景技术
现有的摩擦传动减速装置的摩擦压力是预先设定和恒定的，不管负载扭力如何变化压力始终不变，这样就造成了小扭矩时摩擦损耗很大，大扭矩时又有可能造成超过设定扭矩而造成打滑而烧坏，而且随着摩损的增加系统的扭矩会变得越来越小，最终很快失效，为此，业界希望能开发研制一款能根据负载扭矩的大小自动调节摩擦力的摩擦传动减速装置。
发明内容
本发明的目的就是要克服上述缺陷，提供一种能根据负载扭力的大小变化实时自动调节摩擦力的大小，可大幅减小摩擦损耗，提高摩擦传动减速装置的效率，延长摩擦传动减速装置的寿命的自动压紧摩擦传动减速装置。
为此，本发明采用以下技术方案：自动压紧摩擦传动减速装置，其特征是：该装置包括中心轴、行星轮和套装于行星轮外部的压紧环内圈和压紧环外圈，所述的中心轴为圆柱体，所述的行星轮为圆盘状，行星轮最大圆周部份为一平面外圆，两侧加工成有一定斜度的斜面，行星轮中间安装有行星轴，行星轴固定在外壳上，在行星轴和行星轮间设置滚针以减少摩擦阻力，压紧环内圈和外圈上设有大螺距多头螺纹，能做相对旋转运动，在压紧环内圈和外圈内侧内圆面上加工成与行星轮两侧面斜度相同的斜面，在压紧环内圈和外圈之间设有拉簧，以预先对该装置设定一较小的压力，并防止两片压紧环松脱。
作为对上述方案的进一步完善和补充，本发明还包括以下技术方案。
所述的行星轮的两侧面、压紧环内圈和压紧环外圈内圆面内侧加工成有角度相同的斜面摩擦面，所述的行星轮两边设置有垫片，以减小行星轮与外壳间的磨损。
所述的行星轴外端面上套装有定位片，定位片用螺丝固定在外壳上。
所述的自动压紧摩擦传动减速装置可以将行星轴固定在外壳上，由压紧环内圈或压紧环外圈来作为输出端，也可以将压紧环内圈或压紧环外圈固实在外壳上，由行星轮和行星轴作为输出端。
本发明可以达到以下有益效果：本发明能根据负载扭矩的大小实时自动调整摩擦压力，减少了摩擦损耗，负载能力大幅提高，提高了摩擦传动的效率，并保持了摩擦传动噪音低振动小的优点，且可根据使用要求的不同将压紧环内圈或外圈固定在外壳上，以行星轴作为输出端，本发明结构简单，工作可靠，本发明经实际装机使用取得了很好效果。
附图说明
图 1 是本发明的剖面图。
图 2 是本发明去掉定位代后的主视图及工作原理图。
图 3 是本发明压紧环内圈的侧视图。
图中， 1 、中心轴； 2 、行星轮； 3 、压紧环内圈； 4 、压紧环外圈； 5 、拉簧； 6 、行星轴； 7 、滚针； 8 、外壳； 9 、垫片； 10 、定位片； 11 、螺丝。
具体实施方式
下面结合附图对本发明的具体实施方式进行详细描述。
如图 1~3 所示，本发明包括中心轴 1 、 3 个行星轮 2 和套装于行星轮 2 外部的压紧环内圈 3 和压紧环外圈 4 ，中心轴 1 、行星轮 2 、压紧环内圈 3 和压紧环外圈 4 均采用高强度耐磨钢材制作；中心轴 1 为圆柱体，所述的行星轮 2 为圆盘状，行星轮 2 最大圆周部份为一平面外圆，两侧加工成有一定斜度的斜面，行星轮中间各安装有 1 个行星轴 6 ，行星轴 6 固定在外壳 8 上，行星轮 2 两边设置有垫片 9 ，在行星轴 6 和行星轮 2 间设置滚针 7 以减少摩擦阻力，压紧环内圈 3 和外圈 4 上设有大螺距多头螺纹，能做相对旋转运动；在压紧环内圈 3 和外圈 4 内侧内圆面上加工成与行星轮两侧面斜度相同的斜面，在压紧环内圈 3 和外圈 4 之间设有拉簧 5 ，以预先对该装置设定一较小的压力，并防止两片压紧环松脱，行星轮 2 的外端面上套装有定位片 10 ，定位片 10 用螺丝 11 固定在外壳 8 上。
本发明的安装过程是：首先将行星轴 6 在外壳 8 上安装固定，中心轴 1 为动力的输入轴，先装入压紧环内圈 3 ，然后依次在行星轴 6 上装上垫片 9 ，行星轮 2 、滚针 7 和垫片 9 ，再将压紧环外圈 4 旋在压紧环内圈 3 上，在压紧环内圈 3 和外圈 4 之间装上预紧拉簧 5 ，最后用螺丝 11 将定位片 10 固定在外壳 8 上，以防行星轮的轴向串动，本发明即装配完成，本实施例以压紧环外圈 4 作为动力的输出端，也可以将压紧环内圈 3 或外圈 4 固定于外壳 8 上，以行星轮 2 和行星轴 6 作为输出端。
下面将参照附图详细描述本发明实施例的运行过程，描述的实施例示例性地显示了本发明的实施例，当然将压紧环内圈 3 或外圈 4 固定在外壳上也可以，这样将以行星轴为输出机构。
以图 2 所示为例，当输入轴 1 以顺时针方向旋转时，因压紧环内圈 3 和外圈 4 之间设有预紧拉簧 5 ，使压紧环与行星轮和中心轴之间有一定的摩擦压力，行星轮 2 将以逆时针方向旋传，并带动压紧环内圈 3 和外圈 4 也沿逆时针方向转动，当外圈 4 遇动阻力扭矩增大时，压紧环内圈 3 和外圈 4 将因螺纹的作用旋得更紧，这样就使作用在行星轮 2 两侧斜面上的压紧力增大，同时这增大的压紧力也通过行星轮 2 中间的平面作用在中心轴 1 上，使整个摩擦减速装置的摩擦压力上升，当外部输出扭矩减小时，因多头螺纹的螺距较大（一般应大于 7 度角度），压紧环内圈 3 和外圈 4 之间无法保住旋紧状态，整个摩擦减速装置的摩擦压力也就随之减小。如果输入轴的旋转方向与前述的旋转方向相反，则压紧环内圈 3 与压紧环外圈 4 之间的螺纹旋转方向也应相反。
适用性：本发明作为一个传动装置，可用于汽车、机器、电机、发动机或类似的驱动系统中用于减速传动，其具有能根据负载扭矩的大小实时地自动进行摩擦力的调整，噪音低，减速比大，不易打滑，传动效率高，寿命长等诸多优点，实施后可获得显著的经济效益和社会效益。

Claims (4)

  1. 自动压紧摩擦传动减速装置，其特征在于：该装置包括中心轴（ 1 ）、行星轮（ 2 ）和套装于行星轮（ 2 ）外部的压紧环内圈（ 3 ）和压紧环外圈（ 4 ），所述的中心轴（ 1 ）为圆柱体，所述的行星轮（ 2 ）为圆盘状，行星轮（ 2 ）最大圆周部份为一平面外圆，两侧加工成有一定斜度的斜面，行星轮中间安装有行星轴（ 6 ），行星轴（ 6 ）固定在外壳（ 8 ）上，在行星轴（ 6 ）和行星轮（ 2 ）间设置滚针（ 7 ）以减少摩擦阻力，压紧环内圈（ 3 ）和外圈（ 4 ）上设有多头螺纹，能做相对旋转运动，在压紧环内圈（ 3 ）和外圈（ 4 ）内侧内圆面上加工成与行星轮两侧面斜度相同的斜面，在压紧环内圈（ 3 ）和外圈（ 4 ）之间设有拉簧（ 5 ），以预先对在压紧环内圈（ 3 ）和外圈（ 4 ）与行星轮（ 2 ）和中心轴（ 1 ）之间装置设定一较小的压力。
  2. 根据权利要求 1 所述的自动压紧摩擦传动减速装置，其特征在于：所述的行星轮（ 2 ）的两侧面、压紧环内圈（ 3 ）和压紧环外圈（ 4 ）内圆面内侧加工成有角度相同的斜面摩擦面，所述的行星轮（ 2 ）两边设置有垫片（ 9 ）。
  3. 根据权利要求 2 所述的自动压紧摩擦传动减速装置，其特征在于：所述的行星轴（ 6 ）外端面上套装有定位片（ 10 ），定位片（ 10 ）用螺丝（ 11 ）固定在外壳（ 8 ）上。
  4. 根据权利要求 1 所述的自动压紧摩擦传动减速装置，其特征在于：所述的自动压紧摩擦传动减速装置可以将行星轴（ 6 ）固定在外壳（ 8 ）上，由压紧环内圈（ 3 ）或压紧环外圈（ 4 ）来作为输出端，也可以将压紧环内圈（ 3 ）或压紧环外圈（ 4 ）固实在外壳（ 8 ）上，由行星轮（ 2 ）和行星轴（ 6 ）作为输出端。
PCT/CN2013/073029 2012-03-23 2013-03-22 自动压紧摩擦传动减速装置 Ceased WO2013139294A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020147026588A KR20140129260A (ko) 2012-03-23 2013-03-22 자동 압축 마찰 전동 감속 장치
JP2015502073A JP5893206B2 (ja) 2012-03-23 2013-03-22 自動押圧摩擦伝動減速装置
US14/386,883 US9541175B2 (en) 2012-03-23 2013-03-22 Automatically compressing and friction-driven speed reduction device
AU2013236890A AU2013236890B2 (en) 2012-03-23 2013-03-22 Automatically compressing and friction-driven speed reduction device
EP13764832.5A EP2829768B1 (en) 2012-03-23 2013-03-22 Automatically compressing and friction-driven speed reduction device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN2012201167910U CN202484231U (zh) 2012-03-23 2012-03-23 自动压紧摩擦传动减速装置
CN201210081865.6A CN103322147B (zh) 2012-03-23 2012-03-23 自动压紧摩擦传动减速装置
CN201220116791.0 2012-03-23
CN201210081865.6 2012-03-23

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US (1) US9541175B2 (zh)
EP (1) EP2829768B1 (zh)
JP (1) JP5893206B2 (zh)
KR (1) KR20140129260A (zh)
AU (1) AU2013236890B2 (zh)
WO (1) WO2013139294A1 (zh)

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KR20200134707A (ko) 2019-05-23 2020-12-02 한국타이어앤테크놀로지 주식회사 타이어 트레드의 고무조성물 및 이를 이용하여 제조된 타이어

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AU2013236890A1 (en) 2014-10-09
EP2829768A1 (en) 2015-01-28
US9541175B2 (en) 2017-01-10
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