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Power transmission device

A technology for power transmission devices and transmission components, which is applied in the direction of transmission devices, couplings with safety disconnection joints, couplings, etc., which can solve the problems of inability to receive, increase in production costs, and inability to fully reduce fatigue, etc. problem, to achieve the effect of reliable torque cut-off

Inactive Publication Date: 2010-03-24
SANDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, there is also room for further improvement in the above-mentioned prior application proposal
That is, if there is any deviation in the pretension received during the assembly of the connecting part, a stable pretension cannot be received, and the effect of reducing the fatigue phenomenon cannot be sufficiently obtained.
In addition, complicating the structure of the connection part in order to apply the desired pretension with higher precision will result in increased cost due to reduced yield and increased number of parts

Method used

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Examples

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Embodiment Construction

[0054] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[0055] figure 1 as well as figure 2 A power transmission device according to Embodiment 1 of the present invention is shown. exist figure 1 Among them, symbol 1 represents the whole power transmission device, and the power transmission device 1 includes a pulley 2 as a driving body and a hub body 3 as a driven body, and the pulley 2 faces the same direction ( figure 1 The direction of the arrow in) rotates to obtain the driving force from the engine. The hub body 3 is connected and fixed on the end of the main shaft 4 of the compressor by a nut 5 . The pulley 2 and the hub body 3 are connected by the connecting portion 6, and the torque of the pulley 2 as the driving body is transmitted to the hub body 3 as the driven body, and when the driving load of the driven body exceeds a predetermined value, The transmission of torque is interrupted by breaking of ...

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Abstract

The invention relates to a power transmission device having a coupling portion of a driven body and a drive body constituted by combining a positive torque transmission member for transmitting torquein forward rotational direction but interrupting transmission of torque from the drive body by breaking itself when the drive load of the driven body exceeds a predetermined level, with a separate negative torque transmission member for transmitting torque in reverse rotational direction is further provided with a means for generating pretension in the positive torque transmission member in the pulling direction and simultaneously generating a pretension in the negative torque transmission member in the compressing direction after both torque transmission members are combined. A highly reliable power transmission device which can impart a desired pretension precisely and conveniently, and can interrupt torque properly by suppressing fatigue of material at the coupling portion can be provided.

Description

technical field [0001] The present invention relates to a power transmission device, and relates to a power transmission device suitable for transmitting, for example, a driving force from an engine of a vehicle to an in-vehicle device (for example, a compressor for a vehicle air conditioner). Background technique [0002] Conventionally, there is known a fracture-type torque limiter in which a member or a portion that fractures when a transmission load exceeding a predetermined value is applied is provided between a driving-side member and a driven-side member. For example, Patent Document 1 discloses such a split type torque limiter. When the compressor stops abnormally due to failure or the like, the pulley provided on the driving source side and the shaft of the compressor installed on the driven side are connected to each other. The coupling parts between the rotation transfer plates are broken. However, the conventional fracture-type torque limiter has the problem tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D9/00F16H35/10
CPCF16D9/04F16D3/60
Inventor 高井和彦平渡末二深泽俊树
Owner SANDEN CORP
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