Electrothermal Magnetic Shape Memory Alloy and Magnetorheological Fluid Composite Centrifugal Clutch

A technology of magnetorheological fluid and memory alloy, which is applied in the field of mechanical power transmission, can solve the problem that the joint application of shape memory alloy and magnetorheological fluid is rarely studied, and achieve the effect of improving transmission efficiency, increasing transmission efficiency, and simple structure

Inactive Publication Date: 2017-07-07
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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  • Electrothermal 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 driving 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 o...

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Abstract

The invention discloses an electrothermal magnetic shape memory alloy and magneto-rheological fluid compound centrifugal clutch, which comprises a driving shaft, a driven shaft, a left end cover, a right end cover, an outer cylinder and a driven plate, and the driven plate and the left end cover , the gap between the right end cover and the outer cylinder is filled with magnetorheological fluid, an excitation coil is respectively arranged in the two coil slots, and several friction blocks are distributed on the driven plate, and the friction blocks are respectively connected with a push rod A shape-memory alloy spring is set between the push rod and the bottom of the push rod groove, and a brush slip ring is set on the driven shaft. The excitation coil and the shape-memory alloy spring pass through the wire hole and the blind Connect with the brush slip ring behind the hole. The invention can realize the compound transmission of the shape memory alloy, the magneto-rheological fluid and the centrifugal force, so as to increase the transmission torque of the clutch, thereby improving the transmission efficiency of the clutch.

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 as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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