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Electro-thermo-magnetic shape memory alloy and magnetorheological fluid composite centrifugal clutch

A centrifugal clutch and magnetorheological fluid technology, which is applied in the field of mechanical power transmission, can solve the problem that the combined application of shape memory alloy and magnetorheological fluid is rarely researched, etc. Effect

Inactive Publication Date: 2015-09-09
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although researchers have done a lot of research on the individual applications of shape memory alloys and magnetorheological fluids in the field of transmission engineering, there is little research on the joint application of shape memory alloys and magnetorheological fluids in transmissions

Method used

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  • Electro-thermo-magnetic shape memory alloy and magnetorheological fluid composite centrifugal clutch

Examples

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Embodiment

[0019] Example: see figure 1 , an electrothermal magnetic shape memory alloy and magneto-rheological fluid composite centrifugal clutch, including a drive shaft 1, a driven shaft 2, a left end cover 3, a right end cover 4, an outer cylinder 5 and a driven disc 6. The drive shaft 1 and the left end cover 3 are integrally formed, and the left end cover 3 and the right end cover 4 are respectively installed on the driven shaft 2 through the bearing 7, wherein the left end cover 3 is connected with one end of the driven shaft 2 through the bearing 7, from which The other end of the drive shaft 2 passes through the right end cover 4, and the right end cover 4 is connected with the driven shaft 2 through a bearing 7. The outer cylinder 5 is located between the left end cover 3 and the right end cover 4, and is fixedly connected with the left end cover 3 and the right end cover 4 by connecting screws. Thereby the drive shaft 1, the left end cover 3, the right end cover 4 and the out...

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Abstract

The invention discloses an electro-thermo-magnetic shape memory alloy and magnetorheological fluid composite centrifugal clutch. The clutch comprises a driving shaft, a driven shaft, a left end cover, a right end cover, an outer cylinder and a driven disc, wherein gaps between the driven disc and the left end cover and between the right end cover and the outer cylinder are filled with magnetorheological fluid; an excitation coil is arranged in two coil grooves respectively; a plurality of friction blocks are distributed on the driven disc and are connected with a push rod respectively; a shape memory alloy spring is arranged between the push rod and the bottom of a push rod groove; an electric brush slide ring sleeves the driven shaft; the excitation coil and the shape memory alloy spring pass through a wire hole and a blind hole through a connecting wire respectively and then are connected with the electric brush slide ring. Composite transmission of the shape memory alloy, the magnetorheological fluid and centrifugal force can be realized to improve the transfer torque of the clutch, so that the transfer efficiency of the clutch is improved.

Description

technical field [0001] The invention relates to a clutch, which belongs to the technical field of mechanical power transmission, in particular to a composite centrifugal clutch of electrothermal magnetic shape memory alloy and magnetorheological fluid. Background technique [0002] Shape memory alloys (SMA) and magnetorheological fluids (MR fluids) are new smart materials. After a shape memory alloy with a certain initial shape undergoes a certain degree of deformation under certain conditions, the reverse deformation will occur by appropriately changing the temperature, so that the material will return to the original shape. In the process of shape recovery, if the shape memory alloy is subjected to Constraints will generate a large recovery force, and the recovery force can be used to do work externally. As a novel intelligent material, magnetorheological fluid changes rapidly with the change of the external magnetic field. When no magnetic field is applied, it behaves ...

Claims

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Application Information

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IPC IPC(8): F16D43/18F16D27/00F16D35/00
Inventor 黄金乔臻王建袁发鹏
Owner CHONGQING UNIV OF TECH
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