Self-adjusting rectangular limiting type clutch based on magnetorheological fluid

A self-adjusting, magnetorheological technology, applied in the direction of fluid clutches, clutches, mechanical equipment, etc., can solve the problems of insufficient transmission force and torque of magnetorheological liquid, unable to realize self-adjustment of working state, etc., to solve the problems of vibration and noise. Large, improve driving comfort and power, reliable performance

Active Publication Date: 2021-03-16
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a self-adjusting rectangular compression clutch based on magneto-rheological fluid, so as to solve the problem that existing clutches based on magnetorheological fluid cannot realize self-regulation of the working state and the transmission force and moment of magnetorheological fluid. Insufficient problem

Method used

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  • Self-adjusting rectangular limiting type clutch based on magnetorheological fluid
  • Self-adjusting rectangular limiting type clutch based on magnetorheological fluid
  • Self-adjusting rectangular limiting type clutch based on magnetorheological fluid

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Embodiment Construction

[0033]The design concept of vibration isolation, noise reduction and self-adjustment provided by the present invention is that both the flywheel 2 and the driven disk 23 are designed as a rectangular groove and boss structure, which increases the contact area of ​​the flywheel and the driven disk under force. The magnetofluidic cavity 9 between them is filled with magnetorheological fluid 24 . When the electromagnetic coil 11 is energized, a magnetic field is generated inside the clutch housing 13. Under the action of the magnetic field, the magnetorheological fluid changes from liquid-like to solid-like, generating strong dynamic yield stress, so that the flywheel 2 and the driven disc 23 The non-contact combination reduces the vibration and shock generated when the active part of the traditional clutch is in contact with the driven part when it is in working condition. In addition, the present invention can automatically adjust the current of the electromagnetic coil 11 acco...

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Abstract

The invention relates to a self-adjusting rectangular limiting type clutch based on magnetorheological fluid. The clutch consists of a power transmission mechanism for cutting off or transmitting theoutput power of an engine, a limiting device for limiting the left and right positions of a driven disc, and a self-adjusting device for adjusting the current in an electromagnetic coil according to the state of the magnetorheological fluid in a magnetic current cavity. The problems of shaking and impacting of the clutch during force and torque transmission are solved, self-adjustment of the working state is achieved, and the service life of the clutch is prolonged. A flywheel and a driven disc in the power transmission mechanism are designed to be of rectangular groove boss structures, the matched indirect contact area is increased, and the magnetorheological fluid is filled in the magnetic current cavity formed by matching of the flywheel and the driven disc. After the electromagnetic coil is powered on, the self-adjusting device can ensure that proper current is generated in the electromagnetic coil, so that proper magnetic field intensity is generated in the clutch, the magnetorheological fluid in the magnetic current cavity is changed into solid-like from liquid-like, and the flywheel drives the driven disc to rotate synchronously through shearing force on the adjacent faces of the flywheel and the driven disc.

Description

technical field [0001] The invention belongs to the technical field of automobile clutches, and in particular relates to a magneto-rheological liquid-based self-adjusting rectangular limit clutch applied to the chassis of a passenger car. Background technique [0002] The clutch is a component directly connected to the engine in the car transmission system. It is used to ensure the smooth operation of the transmission system when shifting gears, to ensure the smooth start of the car and to prevent the transmission system from being overloaded. The clutch is the "switch" for whether the engine power is transmitted to the transmission system. The rigid connection between the active part and the driven part of the clutch cannot be used, and the friction between the two contact surfaces can be used to transmit torque, or the liquid can be used as the transmission medium, or the torque can be transmitted by magnetic force. Based on this, clutches are mainly divided into friction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D37/00
CPCF16D37/008
Inventor 陈志勇王建喜李松
Owner JILIN UNIV
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