A squeeze-type torque-increasing magneto-rheological clutch
A magnetorheological, extrusion technology, applied in the field of clutch, can solve the problems of insufficient shear yield stress, not widely used in reality, insufficient torsional force, etc., to achieve fast response, improve transmission efficiency, and increase torque.
Active Publication Date: 2018-10-30
XIANGTAN UNIV
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Problems solved by technology
[0004] However, the problems of insufficient shear yield stress and insufficient torsional force of magnetorheological fluids have always restricted the development of magnetorheological fluids. The low transfer efficiency makes the practical application of this technology not widely
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[0014] The present invention will be further described below in conjunction with the accompanying drawings.
[0015] Such as figure 1 , figure 2 As shown, the present invention includes an input shaft 1 , an outer casing 6 , an end cover 13 , an output shaft 11 , an output sleeve 2 and an electromagnetic coil 10 fixed on the output shaft 11 . The input shaft 1 is connected to one end of the outer casing 6 by bolts, and the other end of the outer casing 6 is connected to the end cover 13 by bolts. The outer casing 6 is provided with a magneto-rheological fluid 5 and an output sleeve, and the output shaft 11 extends into the outer casing 6 through the end cover 13, is connected with the output sleeve 2, and is coaxial with the input shaft 1 . The outer casing 6 , the end cover 13 and the output sleeve 2 are all made of non-magnetic materials, and the output shaft 11 and the end cover 13 are provided with a bearing 12 and a sealing ring 14 . An electromagnetic coil 10 is pro...
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The invention discloses an extrusion type torque-increasing magnetorheological clutch. The clutch comprises an outer casing, an end cover, an input shaft, an output sleeve, an output shaft, steel balls, an extrusion piston and an electromagnetic coil; the input shaft is connected with one end of the outer casing; the end cover is arranged at the other end of the outer casing; a magnetorheological fluid and the output sleeve are arranged in the outer casing; the output shaft penetrates through the end cover, extends into the outer casing, is connected with the output sleeve and is coaxial with the input shaft; the electromagnetic coil is arranged on the output shaft inside the outer casing; the piston is arranged inside the output sleeve; the moving direction of the piston is parallel with the axis of the output shaft; a spring is arranged between the piston and the output sleeve; and a drainage ports are formed in the side wall of the output sleeve between the piston and the electromagnetic coil. Under the composite extrusion effect of the piston and the steel balls, the torque of the clutch is increased, the transmission efficiency of the clutch is improved, and quick response is realized; and the clutch further has the advantages of being simple in structure, reliable in performance, good in sealing performance and high in economy.
Description
technical field [0001] The invention belongs to the technical field of clutches, in particular to a squeeze-type torque-increasing magneto-rheological clutch. Background technique [0002] The magnetorheological fluid is mainly composed of micron-sized (0.01~10µm) ferromagnetic fine particles with high saturation magnetization that can be polarized under a magnetic field, a solvent (water, mineral oil, silicone oil, etc.) that can uniformly disperse the magnetic particles, and a surface A stable suspension of active ingredients. Magnetorheological fluid is a new type of smart fluid whose yield stress and viscosity change with the applied magnetic field. Based on the special mechanical properties of magnetorheological fluids, they can be used in devices controlled by an external magnetic field, such as magnetorheological clutches, damping valves, magnetorheological shock absorbers, etc. [0003] Magneto-rheological clutch is an important direction for the application of mag...
Claims
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IPC IPC(8): F16D37/00
CPCF16D37/008
Inventor 刘金刚毛雄志郑剑云
Owner XIANGTAN UNIV