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Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley

A technology of friction clutch and pulley, applied in the direction of spring/shock absorber, belt/chain/gear, clutch, etc., can solve the problems of high cost, low service life, complicated manufacturing process, etc., and achieve low cost, long service life, The effect of simple manufacturing process

Active Publication Date: 2012-12-12
TAIZHOU ZHENPENG OVERRUNING CLUTCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the OAD of this kind of structure has the following technical problems at present: 1. One end of the friction spring is fixed on the cage, which presses the end of the friction spring into a straight line, and the straight line and the circle form a corner point, and the friction force is Focus on this corner point, when the generator rotates at high and low speeds to generate friction clutch, the corner point of the friction spring fixed on the cage is easy to break
2. In addition, the friction spring corner point and the outer circular surface are all used at one time to stop and overrun the friction generated by the inner diameter of the belt hub. Not only the service life is low, but the manufacturing process is complicated and the cost is high

Method used

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  • Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley
  • Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley
  • Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: as Figure 1-14 As shown, the one-way coupling shock-absorbing pulley of the spring friction brake in this embodiment includes a pulley hub 1, a threaded mandrel 2, a front stop ring 3, a rear stop ring 4, a sliding ring 5, a friction spring 6, and a shock-absorbing spring 7. Connecting paddle 8, rear oil-proof gasket 9, rear axial positioning ring 10, front axial positioning ring 11, front oil-proof gasket 12, front ball bearing 13, rear ball bearing 14, rear dust-proof gasket 15. Front dustproof gasket 16.

[0035] The belt wheel hub 1 is provided with a spring friction clutch mechanism, and the front stop ring 3, the sliding ring 5, and the friction spring 6 are assembled into a group of spring friction clutch mechanisms, see Figure 3-8 , The front stop ring 3 and the sliding ring 5 are all in the shape of a ring, the inner diameters of the two are equal and one end surface of the two is in contact. One section of the friction spring 6 is put into th...

Embodiment 2

[0046] Example 2: see Figure 15-17 In this embodiment, the front stop ring in Embodiment 1 is changed to a one-way needle roller clutch bearing 17, and a section (front section) of the outer ring of the friction spring 6 is installed in the inner hole of the one-way needle roller clutch bearing 17, and the other section ( Rear segment) is contained in the inner hole of sliding ring 5, and the diameter of the inner ring of one-way needle roller clutch bearing 17 is less than the outer diameter of friction spring 6, and the outer ring of one-way needle roller clutch bearing 17 is pressed into the inner wall of belt hub 1. When the one-way needle roller clutch bearing 17 is pressed into the pulley hub inner hole, the one-way locking direction is the same as the pulley hub turning to. Other structures of this embodiment are the same as Embodiment 1, refer to Embodiment 1.

[0047] When the rotating speed of the pulley hub slows down, the inertial speed of the generator rotor and...

Embodiment 3

[0049] Embodiment 3: In the aforementioned embodiment 1, the spring friction clutch mechanism can be regarded as the technical solution claimed by the invention alone, that is, the spring friction clutch mechanism can be applied to other pulley structures.

[0050] In this embodiment, the front stop ring 3, the sliding ring 5, and the friction spring 6 are assembled into a group of spring friction clutch mechanisms, see Figure 3-8 , The front stop ring 3 and the sliding ring 5 are all in the shape of a ring, the inner diameters of the two are equal and one end surface of the two is in contact. One section of the friction spring 6 is put into the inner hole of the sliding ring 5, and the other section is put into the inner hole of the front stop ring 3. The inner diameters of the front stop ring 3 and the sliding ring 5 are smaller than the outer diameter of the friction spring 6, thereby increasing The elastic tension of the outer diameter of the friction spring is ensured. T...

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Abstract

The invention discloses a spring friction clutch mechanism for a belt pulley and a one-way coupling damping belt pulley. The one-way coupling damping belt pulley comprises a belt hub, a threaded mandrel, a front ball bearing and a rear ball bearing, wherein the threaded mandrel is located in an inner hole of the belt hub, the front ball bearing and the rear ball bearing are arranged between ends of the threaded mandrel and the belt hub respectively, the spring friction clutch mechanism is arranged inside the belt hub, the spring friction clutch mechanism comprises a drive member, a sliding ring and a friction spring, the drive member is provided with a circular inner hole, the sliding ring is provided with a circular inner hole, one section of the friction spring is arranged inside the inner hole of the sliding ring, the other section of the friction spring is arranged inside the inner hole of the drive member, the inner diameters of the drive member and the sliding ring are smaller than the outer diameter of the friction spring, the threaded mandrel penetrates through the inner hole of the friction spring, the outer wall of the drive member and the inner wall of the belt hub are fixed, the sliding ring is connected with a connection poking piece in a clamping mode, the connection poking piece is sleeved outside the threaded mandrel, the connection poking piece is positioned at one end of the a damping spring, the damping spring is sleeved outside the threaded mandrel, and the other end of the damping spring is positioned on the threaded mandrel.

Description

technical field [0001] The invention belongs to the technical field of manufacturing one-way coupling damping pulleys for automobile generators, and particularly relates to a one-way coupling damping mechanism braked by spring friction, specifically a spring friction clutch mechanism applied to a pulley and a spring friction mechanism Dynamic one-way coupling shock-absorbing pulley. Background technique [0002] When the generator is driven by the crankshaft of an automobile engine such as a belt, pulley unit, excessive rotational torque may be generated on the pulley, shaft, and pulley due to the cycle of intake stroke, compression stroke, combustion and expansion stroke, and exhaust stroke (torque) and tension. Under the tendency of the rotation of the crankshaft to drop instantaneously, the generator shaft has a large amount of inertia, and the belt is pulled in the direction of torque generation and changes in tension, which may overload the belt and reduce the service ...

Claims

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Application Information

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IPC IPC(8): F16D41/20F16H55/36F16F15/134
Inventor 李志敏
Owner TAIZHOU ZHENPENG OVERRUNING CLUTCH CO LTD