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Controllable bi-directional overrunning clutch

A technology of overrunning clutches and control wheels, applied in one-way clutches, clutches, mechanical equipment, etc., can solve the problems of small loadable torque, easy wear of contact surfaces, short service life, etc., and achieve low material stress and not easy to wear , long service life effect

Inactive Publication Date: 2012-08-01
赖建福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are two types of traditional overrunning clutches: roller overrunning clutches and sprag overrunning clutches, but because they are all in line contact or small area contact and the contact surface will produce sliding friction, they have the disadvantage of easy wear and tear, so they can be The bearing torque is small and the contact surface is easy to wear, so the service life is relatively short

Method used

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  • Controllable bi-directional overrunning clutch
  • Controllable bi-directional overrunning clutch
  • Controllable bi-directional overrunning clutch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment one: if Figure 1~3 As shown, a two-way controllable overrunning clutch is characterized in that it includes a torque wheel 1, an expansion clip group positioned inside the torque wheel 1, and a friction wheel 3 located inside the expansion clip group, and the expansion clip group is composed of Three (but not limited to three) expansion clips 2 with wedge-shaped ends form a ring, at least one side of the expansion clips 2 is provided with a limit column 6, and the side of the torque wheel 1 is provided with a The control wheel 4 matched with the limit column 6, the control wheel 4 is provided with a limit hole 7 matched with the limit column 6, and the control wheel 4 is connected with the torque by the control pin 5 and the first pretension spring 8 Wheel 1 is connected, the torque wheel is in surface contact with the expansion clip set, and the expansion clip set is in surface contact with the friction wheel.

[0030] In the first embodiment, the torque w...

Embodiment 2

[0038] Embodiment two: if Figure 4~5 As shown, the two-way controllable overrunning clutch adds some components on the basis of the first embodiment, specifically as follows: a cylindrical roller assembly 17 is arranged between the wedging surfaces of the torque wheel 1 and each expansion clip 2, but not Limited to this; the cylindrical roller assembly 17 is formed by a plurality of cylindrical rollers connected in parallel through a roller frame, but not limited thereto. In order to make the cylindrical roller assembly 17 not easy to shift, the cylindrical roller assembly 17 is connected to the torque wheel 1 through the balance spring 18, but it is not limited to this, and the cylindrical roller assembly 17 can also be connected to each expansion wheel through the balance spring 18. Clips 2 are connected.

[0039] The working principle of the second embodiment is basically the same as that of the first embodiment, the difference is that the second embodiment only adds a cy...

Embodiment 3

[0040] Embodiment three: as Figure 6~7 As shown, the two-way controllable overrunning clutch is based on Embodiment 1. An oil storage groove 20 is added on the surface of each expansion clip 2 in contact with the torque wheel 1, but it is not limited thereto. The oil storage groove 20 also has the function of reducing friction. The role of resistance.

[0041] The working principle of the third embodiment is basically the same as that of the first embodiment, the difference is that the third embodiment is additionally provided with an oil storage tank 20, and the oil storage tank 20 is arranged on the surface where the expansion clip set contacts the torque wheel. The function of the oil storage tank 20 is as follows: with reference to Embodiment 1, when the above-mentioned two-way controllable overrunning clutch is from the wedging process to the wedging process as a whole, the interaction between the torque wheel 1 and each expansion clip 2 makes the wedging surfaces in con...

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Abstract

The invention relates to a controllable bi-directional overrunning clutch, which is characterized by comprising a torque wheel, an expanding clamping piece group which is arranged at the inner side of the torque wheel and a friction wheel which is arranged at the inner side of the expanding clamping piece group, wherein the expanding clamping piece group is formed by encircling a plurality of expanding clamping pieces with two ends being in a wedge shape, at least one side surface of each expanding clamping piece is provided with a limiting column, a lateral side of the torque wheel is provided with a control wheel which is matched with the limiting column, the control wheel is provided with a limiting hole which is matched with the limiting column, the control wheel is connected with the torque wheel through a control pin and a first pre-tightening spring, the torque wheel is contacted with the expanding clamping piece group in a surface contact way, and the expanding clamping piece group is contacted with the friction wheel in a surface contact way. Compared with the prior art, the stressed surfaces of the controllable bi-directional overrunning clutch are contacted in a surface contact way, so that the advantages of small material stress, long service life and the like can be achieved.

Description

technical field [0001] The invention relates to a two-way controllable overrunning clutch. Background technique [0002] At present, there are two types of traditional overrunning clutches: roller overrunning clutches and sprag overrunning clutches, but because they are all in line contact or small area contact and the contact surface will produce sliding friction, they have the disadvantage of easy wear and tear, so they can be The bearing torque is small and the contact surface is easy to wear, and the service life is relatively short. Contents of the invention [0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a two-way controllable overrunning clutch that can carry a large torque and has a long service life. The two-way controllable overrunning clutch has the advantages of large contact area, small material stress and long service life advantage. [0004] In order to achieve the above object, the technical solutio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D41/066
Inventor 赖建福
Owner 赖建福