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Torque limiter

A torque limiter, torque limiting technology, applied in the field of torque limiter, can solve problems such as abnormal sound and noise, engine stall, hindering the smooth operation of the engine, etc.

Inactive Publication Date: 2003-07-23
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, even after the screw thread is broken, sliding resistance remains between the connection portion 103 and the drive shaft 112 due to the remaining debris of the broken screw thread, generating abnormal sound and noise, and hindering smooth operation of the engine.
In addition, due to the welding sticking of the sliding part, the torque transmission resumed, so the engine stalled

Method used

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Examples

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Embodiment Construction

[0016] A torque limiter of a preferred embodiment of the present invention will now be described with reference to FIGS. 1A to 3B. Note that the left side of FIGS. 1A and 3A is the front side, and the right side of FIGS. 1A and 3A is the rear side. In this embodiment, a torque limiter is incorporated on the transmission path between the engine as the driving source of the vehicle and the refrigeration compressor C for the vehicle air conditioner.

[0017] First, the power transmission path will be described with reference to FIG. 1A . The compressor C constituting the refrigeration cycle has a casing 11 and a compression mechanism P inside the casing 11 . A rotor 12 as a first rotating body is supported for rotation by bearings 13 on the outer wall surface. The rotor 12 is operatively connected to a drive shaft 14 of the compression mechanism P via a torque limiter 15 . A belt 16 connected to the output shaft of the engine E is partially wound around the outer periphery of ...

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Abstract

A torque limiter is placed between a first rotary body and a second rotary body in a power transmission path. The torque limiter has a breaking portion, a flange connected to the first rotary body and a connecting portion protruding from the flange. The connecting portion is screwed to the second rotary body at a predetermined value of fastening torque. The torque is transmitted between the first rotary body and the second rotary body in a relative rotational direction of fastening the connecting portion to the second rotary body. A portion of the flange belongs to the first rotary body after the breaking portion of the flange is broken. The portion of the flange forms a regulating surface for fastening the connecting portion to the second rotary body. The fastening torque is regulated by a contact on the regulating surface between the flange and the second rotary body.

Description

technical field [0001] The present invention relates to a torque limiter placed on a power transmission path between an engine as a driving source of a vehicle and a refrigeration compressor for a vehicle air conditioner, which not only transmits torque but also prevents excessive torque transmission. Background technique [0002] Japanese Unexamined Patent Publication 2001-59560 discloses this type of torque limiter. As shown in FIGS. 4A and 4B , a torque limiter 101 for a compressor includes a flange 102 and a connecting portion 103 extending from the center of the flange 102 . Flange 102 is connected to rotor 111 on the engine side. The connecting portion 103 is screwed on the drive shaft 112 of the compressor at a predetermined value of tightening torque. Torque is transmitted from the rotor 111 to the drive shaft 112 in the direction of the fastening connection 103 . [0003] If it is necessary to drive the compressor, the load torque acts on the compressor, due to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D9/00F16D9/08F16H35/10
CPCF16D9/08F16D9/00F16H35/10
Inventor 金井明信川口真广太田雅树安谷屋拓川田刚史铃木隆容
Owner TOYOTA IND CORP