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Space wedge friction connector

A connector, wedging technology, applied in the field of space wedging friction connectors, can solve the problems of reduced reliability, delay, safety hazards, etc.

Inactive Publication Date: 2016-05-11
洪涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the clutches or brakes in the prior art are not only too complex, have too many components, are bulky in size and quality, high in cost, and low in reliability, but also cannot work because they belong to active systems when they are powered off, and the energy consumption is too high
At the same time, it is not easy to be miniaturized and lightweight, and it is even more difficult to realize wire-controlled transmission or braking
When the space span of the transmission device that transmits the joint energy is large, it is difficult to ensure the consistency of the system action due to poor responsiveness.
For example, when used as a braking device for trailers or rail vehicles, there will be potential safety hazards that cannot be ignored because of the long distance between the braking points from the beginning to the end and the inconsistency or delay in starting the braking time.
[0005] In addition, the friction connectors in the prior art all work based on the energy supply device and the transmission device, and its torque capacity depends entirely on and is sensitive to the engagement energy / force and the related friction coefficient obtained by it, while it is transmitted / carried by it. Torque independent
Therefore, in order to match the joint energy / force and the transmitted / carrying torque, the friction connector based on the prior art will inevitably consume more resources and economic costs in control, and the reliability will be further reduced as a result.
Moreover, when the friction connector of the prior art is used as a brake of a motor vehicle, it is not easy to have the function of parking brake, especially the general parking brake function.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1: Space wedging friction connector CB1 with mechanical stepless support mechanism.

[0058] Figure 1~4 Shown is a wheel-shaft driven friction coupling CB1 comprising a force limiting element 180 formed around the axis X and having an axial force closure function. The force limiting element 180 is preferably an annular pocket-shaped member, and the axial middle part of the inner peripheral surface 84 formed around the axis X is coaxially provided with a disc-shaped annular circumferential groove that is preferably planar. 78. The inner surface of about half of the circumferential groove 78 preferably extends to the outer peripheral surface of the force limiting element 180 along two mutually parallel tangential directions H and H′, and forms a rectangular inlet 82 with equal cross-section. The radially inner surface 80 of the circumferential groove 78 thus extends as a non-closed inner radial surface having a U-shaped cross-sectional shape. The intermedia...

Embodiment 2

[0101] Embodiment 2: Spatial wedging friction connector CB2 with fluid stepless support mechanism

[0102] like Figure 5 As shown, the friction connector CB2 is a modification of the friction connector CB1.

[0103] Firstly, in order to obtain a combined pocket-shaped guide member with axial force sealing function, the guide member 50 and the force limiting element 180 are non-rotatably arranged on the outer peripheral surface of the first shaft 200 in the form of a spline connection. Wherein, the spline teeth 182 are arranged on the inner peripheral surface 84a of the force limiting element 180 . In the same way, the second shaft 210 for shaft-shaft transmission is non-rotatably arranged in the inner hole of the friction member 70, and is rotatably positioned radially on the corresponding inner circumference of the force limiting element 180 by means of the bearing 158. face. At the same time, on the inner end surface of the second shaft 210, a cylindrical central protrus...

Embodiment 3

[0113] Embodiment 3: Spatial wedging friction connector CB3 with fluid stepless support mechanism

[0114] In order to obtain the flexible engagement ability, the main improvement of the friction connector CB3 compared with CB2 is that the friction member 70 preferably has axial elastic deformation ability. Correspondingly, the lift angle λ of the rotating guide mechanism G is set in the range of 0<λ≤ζ where the guide surfaces 54 and 94 can slide and climb mutually. Between the damping mechanism D.

[0115] see Figure 6~7 , in order to reduce wear and improve friction transmission capability, at least one disc spring 100 used as an elastic element is disposed between the friction members 70a and 70b to optimally indirectly contact the force transmission friction surface 58 . The damping package 160 of the damping mechanism D is fixedly arranged in the circumferential groove 244 located on the radially inner surface of the balance element 240, and the elastic diaphragm bowls...

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PUM

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Abstract

A spatial wedged friction coupling used as a clutch or a brake is provided, characterized in that it is provided with a self-energizing spatial wedge-shaped mechanism with high and strong torque capacity, and a wedge-locking control mechanism. The control mechanism controls the engagement and separation of the friction coupling by operably controlling the wedge-locking and wedge-unlocking of an intermediate member (90) in the wedge-shaped mechanism. The wedge-locking control mechanism preferably comprises a rotation guide mechanism (G), or a fluid closing cavity mechanism. The two triggered mechanisms do not require sustaining energy, neither do they require relatively high energy to be driven; and the energy can be theoretically approximately zero. The friction coupling can be adapted to have transmission ability for overload skidding, ABS anti-lock braking and a parking brake without the help of any other mechanisms. At the same time, because an energy supplying device and a transmission device are dispensed with, the structure and the operating procedure are greatly simplified, such that the cost is reduced and the coupling is more reliable and safe, and it is easier to achieve miniaturization, a light weight and long distance wire-controlled transmission and braking.

Description

[0001] related application [0002] This application is a subordinate patent application of the Chinese patent applications 201010222712.X and 201020186785.3 named space wedging friction overrunning clutch proposed by the present applicant. The entire contents of the published prior two patent applications are hereby incorporated by reference. technical field [0003] The present invention relates generally to a device for transmitting rotational motion or torque by means of a frictional connection, or for arresting such rotational motion or torque, in all transmission fields, including all manipulations actuated mechanically, electrically, magnetically or fluidically Clutches, all self-operating clutches, all brakes and parking brakes, and shafts or hinges, etc., especially a friction coupling. Background technique [0004] In general, in all rotating shafting systems including industry, agriculture and transportation, whether by means of manual actuation, pneumatic / hydrau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D41/06
CPCF16D13/38F16D55/04F16D67/00F16D2125/36F16D2127/004F16D2127/005F16D2127/10
Inventor 洪涛
Owner 洪涛