Magneto-rheological torque regulator
A regulator, magnetorheological technology, applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve problems such as aging, easy damage to seals, etc., achieve precise control, and solve the effects of easy damage and aging
Active Publication Date: 2017-07-11
NANJING INST OF TECH
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Problems solved by technology
[0004] Purpose: In order to overcome the deficiencies in the prior art and solve the problem of easy damage and aging of the seal of the traditional rubber parts of magnetorheological fluid, the invention provides a magnetorheological torque regulator
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Embodiment Construction
[0018] The present invention will be further described below in conjunction with the accompanying drawings.
[0019] Such as Figure 1 to Figure 3 As shown, a magnetorheological torque regulator includes an output shaft 1, an outer rotor 2, a magnetorheological fluid 3, an excitation coil 4, an inner rotor 5, an input shaft 6, a housing, a left magnetic yoke 10, a right magnetic Yoke 13, permanent magnet 17;
[0020] Such as figure 2 As shown, its internal working structure is as follows: the outer rotor 2 is rigidly combined by the left part 8, the middle part 11, and the right part 9. The width bisecting surface of the middle part is inlaid with a magnetic isolation copper sleeve 12, and the outer rotor 2 and the input shaft 6 Connected as one, rotate together. The inner rotor 5 is connected with the output shaft 1 and rotates together. The gap between the outer rotor and the inner rotor is filled with the magneto-rheological fluid 3, and rubber sealing ring 14 (static ...
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The invention discloses a magneto-rheological torque controller. A magnetism isolating copper sleeve is inlaid in a middleware width bisection plane of an outer rotor; the outer rotor is connected with an input shaft to form a whole body; an inner rotor is connected with an output shaft to form a whole body; magneto-rheological fluid is filled in a gap between the outer rotor and the inner rotor; static sealing is realized between the outer rotor and the inner rotor through a sealing ring; dynamic sealing is realized between the output shaft and the outer rotor through a sealing structure; the sealing structure is shown as follows: a magnetism isolating sleeve is arranged to isolate a permanent magnet from the outer rotor, and five magnetic conductive rings are installed on the right side of the permanent magnet sequentially and installed on the permanent magnet and the magnetism isolating sleeve in an attracting manner through the magnetic force; uniform intervals are formed between the five magnetic conductive rings and the output shaft respectively; a flow channel of each interval has a structure of a zigzag maze corridor so as to realize mechanical maze sealing; and meanwhile, the permanent magnet forms a magnetic field which is gradually enlarged from outsides to insides at the maze flow channel through the five magnetic conductive rings with different magnetoconductivities; and a magnetic sealing link is added on the basis of mechanical maze sealing by utilizing the characteristic of the magneto-rheological fluid that the shear stress self varies along with the magnetic field.
Description
technical field [0001] The invention relates to a magnetorheological torque regulator, specifically a magnetorheological torque regulator with a special sealing mechanism, belonging to the technical field of mechanical transmission of intelligent materials. Background technique [0002] In industry, occasions are often encountered where precise control of the output torque of the transmission system is required. For example, in the winding operation of packaging, chemical industry, papermaking, textile, printing, printing and dyeing industries, in order to maintain the stability of the tension during the winding process of processed film, paper, cloth and other flexible materials, it is necessary to ensure that the speed does not change. Under this condition, the real-time change of the winding torque with the change of the roll diameter is realized. Magnetic powder clutches are often used as control hardware in traditional winding. However, in long-term application, it ha...
Claims
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IPC IPC(8): F16J15/43
CPCF16J15/43
Inventor 李钢
Owner NANJING INST OF TECH