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A cylinder type variable volume magneto-rheological fan automatic clutch

An automatic clutch and variable volume technology, applied in the direction of automatic clutches, fluid clutches, clutches, etc., can solve the problems of low transmission reliability, inability to realize automatic control of fans, and poor transmission capacity of clutches, etc., and achieve good heat dissipation effect

Inactive Publication Date: 2021-03-09
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to solve the problems of poor clutch transmission capability, low transmission reliability, and failure to realize automatic fan control, and to provide a cylindrical variable volume magneto-rheological fan automatic clutch, which can effectively Improve the clutch transmission capacity, transmission efficiency and transmission reliability, and realize the clutch of fan automatic control

Method used

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  • A cylinder type variable volume magneto-rheological fan automatic clutch
  • A cylinder type variable volume magneto-rheological fan automatic clutch
  • A cylinder type variable volume magneto-rheological fan automatic clutch

Examples

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Embodiment

[0023] Example: see figure 1 , figure 2 as well as image 3 , a cylindrical variable volume magneto-rheological fan automatic clutch, comprising a clutch housing, an input shaft 4 and an output flange 5. The clutch housing includes a left end cover 1, an outer cylinder 2 and a right end cover 3 connected in sequence; the left end of the input shaft 4 passes through the right end cover 3 and then extends into the clutch housing, and is respectively connected to the left end cover 1 and the left end cover 1 through bearings. The right end cover 3 is connected; wherein, the middle part of the left end cover 1 is recessed outward to form a bearing accommodating cavity; a sealing end cover is also sleeved on the right end of the input shaft 4, and the sealing end cover is fixedly connected with the right end cover 3, so that the entire clutch The sealing effect of the housing is better. The diameter of the part of the input shaft 4 located in the clutch housing is expanded to f...

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PUM

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Abstract

The invention discloses a cylindrical variable volume magneto-rheological fan automatic clutch, which includes a clutch housing, an input shaft and an output flange; , guide pipe, piston and shape memory alloy spring; an oil hole connected to the oil reservoir shell is opened on the outer cylinder; two push oil slip rings are set on the transmission section, between the two push oil slip rings, The oil hole and the guide tube on the side of the piston away from the shape memory alloy spring are filled with magneto-rheological fluid; an excitation coil around it is set in the middle of the transmission section; two brush sliders are set on the right end of the input shaft. One end of the excitation coil is connected to one of the brush slip rings after being passed through a shape memory alloy switch; the other end of the excitation coil is connected to the other brush slip ring. The invention can effectively improve the transmission capacity, transmission efficiency and transmission reliability of the clutch, and realize the automatic fan control clutch.

Description

technical field [0001] The invention relates to the technical field of fan clutches, in particular to a cylindrical variable volume magneto-rheological fan automatic clutch. Background technique [0002] Magnetorheological fluid is a new type of material composed of magnetic particles, base fluid and additives. Its rheological properties change sharply with the change of the applied magnetic field: under zero magnetic field, it behaves as Newtonian fluid; under the action of external magnetic field, It can change from liquid to solid in an instant (about one thousandth of a second), and its viscosity suddenly increases to several orders of magnitude to lose fluidity. It shows the behavior of Bingham plastic body and has a certain shear yield stress. Its yield stress increases with the increase of the applied magnetic field intensity, and its performance can be continuously adjusted by the applied magnetic field, and the response time of this control is in milliseconds. Ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D31/00F16D43/25
CPCF16D31/00F16D43/25
Inventor 黄金熊洋
Owner CHONGQING UNIV OF TECH
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