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Power transmission device

A technology for power transmission devices and rotating parts, applied in the direction of automatic clutches, vibration suppression adjustments, mechanical drive clutches, etc., can solve problems such as inability to prevent transmission stably, unstable torque, etc.

Pending Publication Date: 2019-09-27
EXEDY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the torque limiting mechanism structured as described above, the slipping torque is unstable, so it cannot be stably prevented from transmitting a torque exceeding the specified torque.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Deformed example 1

[0074] The friction engagement part 5 has a plurality of first friction plates 51 and a plurality of second friction plates 52 , but the number of the first friction plates 51 and the second friction plates 52 may be one.

Deformed example 2

[0076] The load adjustment mechanism 6 adjusts the load acting on the friction engagement portion 5 according to the torsion angle of the input rotation member 2 and the intermediate rotation member 3 , but is not limited thereto. For example, the load adjustment mechanism 6 may have a torque sensor that detects the torque input to the input rotary member 2 . Accordingly, the load adjustment mechanism 6 can also adjust the load acting on the friction engagement portion 5 based on the torque detected by the torque sensor.

Deformed example 3

[0078] The load adjustment mechanism 6 has a pressing member 62 and a second elastic member 63, but is not limited thereto. For example, the load adjustment mechanism 6 may directly press the intermediate rotation member 3 without having the second elastic member 63 . In addition, the pressing member 62 may be integrally formed with the intermediate rotating member 3 .

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PUM

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Abstract

A power transmission device capable of stably preventing transmitting torque larger than regulated torque is disclosed. The power transmission device (100) includes an input rotary member (2), an intermediate rotary member (3), an output rotary member (4), a friction engaging part (5) and a load adjusting mechanism (6). A torque is inputted to the input rotary member (2). A friction engaging part (5) is engaged by friction with a friction force depending on a load applied thereto. The friction engaging part (5) is configured to transmit the torque between the intermediate rotary member (3) and the output rotary member (4). The load adjusting mechanism (6) is configured to adjust the load applied to the friction engaging part (5) in accordance with the torque inputted to the input rotary member.

Description

technical field [0001] The present invention relates to power transmission devices. Background technique [0002] The power transmission device transmits torque from a drive source such as an engine or a motor to the drive wheels. This power transmission device has a torque limiting mechanism to prevent torque exceeding a predetermined torque from being transmitted. For example, the power transmission device described in Patent Document 1 is provided with a torque limiting mechanism between an input shaft and an output shaft. The magnitude of the torque transmitted between the prime mover and the drive wheels is limited by the torque limiting mechanism. [0003] In this torque limiting mechanism, the friction plate on the output shaft side and the friction plate on the input shaft side are pressed against each other by the urging force of the disc spring to frictionally engage with each other. When a torque greater than a predetermined torque is input, the friction plates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D7/02F16D43/21F16D13/75
CPCF16D7/028F16D43/218F16D13/757F16D2023/123F16F15/1297
Inventor 河原裕树桂齐士胁克明
Owner EXEDY CORP