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power transmission device

A power transmission device, drive-side technology, used in couplings with safety disconnect joints, slip couplings, couplings, etc., to solve problems such as damage to belts

Inactive Publication Date: 2017-09-19
OGURA CLUTCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the compressor is overloaded and continues to transmit power for a long time, it will damage the belt wound on the pulley

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0035] Below, through Figure 1 to Figure 5 Embodiments of the power transmission device of the present invention will be described in detail.

[0036] figure 1 The illustrated power transmission device 1 has the following two functions. The first function is right figure 2 The illustrated car air conditioner compressor 2 has a function of transmitting power from a car engine (not shown). The second function is a function of a torque limiter that cuts off power transmission when an overload occurs on the rotary shaft 3 of the compressor 2 . In this embodiment, the automobile engine corresponds to the "power source" in the present invention.

[0037] The power of the automobile engine is transmitted to the pulley 4 of the power transmission device 1 via an unillustrated belt.

[0038] Such as figure 2 As shown, the pulley 4 is composed of a cylindrical belt lock part 6 having a groove 5 on which a belt can be wound, an inner cylindrical part 7 located inside the belt lo...

no. 2 approach

[0069] In the above-mentioned embodiment, if Figure 6A and Figure 6B As shown, the mounting position of the ring plate 12 can be changed to a position deviated to one or the other of the axial direction of the hub 11 . Figure 6A and Figure 6B In, it is appropriate to omit the Figure 1 to Figure 5 A detailed description of the same or equivalent parts marked with the same symbol as the described part.

[0070] Figure 6A The shown ring plate 12 is disposed on the outer peripheral wall 14 of the hub 11 in a direction away from the casing 2a of the compressor 2 (not shown) (right direction in the same figure). In addition, the ring plate 12 is biased in a direction away from the housing 2a (direction indicated by an arrow R in the figure) by the elastic force of a leaf spring 16 (not shown). An end portion 17 a of the inner peripheral wall 17 of the ring plate 12 on the opposite side to the casing 2 a protrudes from the connection portion 11 b of the hub 11 in the axial...

no. 3 approach

[0075] In the power transmission device 1 of the present invention, in order to increase the crimping force of the fitting portion 21, a Figure 7 structure shown. Figure 7 In, it is appropriate to omit the Figure 1 to Figure 5 A detailed description of the same or equivalent parts marked with the same symbol as the described part.

[0076] exist Figure 7 A plurality of protrusions 31 are formed on the inner peripheral wall 17 of the illustrated ring plate 12 to engage with the outer peripheral wall 14 of the hub 11 in the rotational direction.

[0077] These protrusions 31 are formed into a cross-sectional mountain shape by knurling the inner peripheral wall 17 . When these protrusions 31 are press-attached to the outer peripheral wall 14 of the hub 11 by shrink fitting or shrink fitting, the gap between them and the outer peripheral wall 14 is filled by so-called plastic flow of metal. As a result, the contact area between the ring plate 12 and the hub 11 increases, a...

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PUM

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Abstract

Provided are a pulley (4) connected to a motive power source, and a rotating shaft positioned coaxially with respect to the pulley (4). Also provided are a hub (11) provided to the rotating shaft, and a ring plate (12) separably mated to the hub (11). Also provided is a leaf spring (16) for urging the ring plate (12) toward the hub (11) in the direction parallel to the axis of rotation. When the load on the rotating shaft is below a threshold, the hub (11) and ring plate (12) are caused to rotate as a single entity due to friction. When the load on the rotating shaft is equal to or higher than a threshold, the ring plate (12) rotates in relative fashion with respect to the hub (11) and moves parallel to the axis of rotation due to the spring force of the leaf spring (16), so that the ring plate (12) and the hub (11) separate. It is possible to provide a power transmission device in which power transmission is quickly interrupted after the load torque on a driven-side rotating element has increased.

Description

technical field [0001] The present invention relates to power transmission devices. More specifically, the present invention relates to a power transmission device that cuts off power transmission when the load torque of the driven-side rotating body increases. Background technique [0002] Such a conventional power transmission device is described in Patent Document 1, for example. The power transmission device disclosed in Patent Document 1 includes a pulley as a driving-side rotating member that transmits power from a power source via a belt, and a hub as a driven-side rotating member connected to the pulley through a transmission mechanism. The pulley is rotatably supported by the housing of the compressor via bearings. The hub is integrally rotatably attached to the front end of the rotary shaft of the compressor. [0003] The transmission mechanism includes a tubular rubber adhered to the outer peripheral surface of the hub, a first tubular metal adhered to the oute...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D9/00F16D7/02
CPCF16D7/021F16D9/00
Inventor 加藤基黑须義弘神沢贵浩
Owner OGURA CLUTCH CO LTD
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