Spherical magnetorheological fluid clutch

Abstract

The invention relates to a spherical magnetorheological fluid clutch, comprising a spherical steel jacket fixed with an input shaft, a steel ball which is fixed with an output shaft and is arranged in the spherical steel jacket, and a magnetorheological fluid working gap filled with magnetorheological fluid is left between the spherical steel jacket and the steel ball, a round hole which leads the output shaft to pass through and is connected with the steel ball is arranged on the spherical steel jacket, a sealing ring is arranged at the periphery of the round hole, a magnetic separation ring is embedded on the spherical steel jacket, a magnetic-conduction ring sheathed on the spherical steel jacket is arranged outside of the embedded magnetic separation ring, and a magnet exciting coil is arranged in the magnetic-conduction ring, corresponding to the magnetic-conduction ring; a main round ball connected with the input shaft drives an output round ball to rotate by the magnetorheological fluid, the current magnitude in the magnet exciting coil is changed, that is, the transmission torque can be changed; the spherical magnetorheological fluid clutch can be used for the occasion that the included angle formed by the input shaft and the output shaft is not in a straight line and the occasion which has high requirements to spark; the structure is compact, the included angle of the input shaft and the output shaft can be changed and the clutch is suitable for small space; the equipment such as an electric brush does not need, and the safety reliability is high.

Description

technical field [0001] The invention relates to a clutch, in particular to a spherical magneto-rheological fluid clutch. Background technique [0002] Traditional mechanical clutches have defects such as impact, high noise, high inertia, severe friction and wear, and heat generation, short service life, and inconvenient control; traditional fluid-viscous clutches control the transmitted torque by adjusting the thickness of the oil film. It can effectively overcome the shortcomings of traditional mechanical clutches, but it requires a huge oil supply system and complex control devices, and the entire system is bulky and expensive. In recent years, magneto-rheological fluid technology has developed rapidly. Magneto-rheological fluid clutches can overcome the shortcomings of traditional mechanical and fluid-viscous clutches. By changing the magnitude of the current, you can easily control the magnitude of the torque transmitted by the equipment. The control is simple and conven...

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Problems solved by technology

Foreign patents: U.S. Patent 5896965 discloses a single-disc magnetorheological fan clutch, U.S. Patent 5823309 discloses a multi-disc magnetorheological clutch; and domestic patents: ZL00104451.6 discloses a radial self-pressurized magnetorheological fluid clutch, ZL01137376 .6 The disclosed centrifuga

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