Controllable torque device based on magnetorheological materials

Abstract

The invention provides a controllable torque device based on magnetorheological materials. The controllable torque device comprises a propelling device, a controllable buffer device and a magnetorheological material return pipe. The propelling device is provided with a spiral passage inside. A multi-stage annular damping passage is formed in the controllable buffer device. When the propelling device operates, the magnetorheological materials in the spiral passage is pushed into the multi-stage annular damping passage, then the magnetorheological materials flow back to the spiral passage through the magnetorheological material return pipe, and a magnetorheological loop is formed. By the controllable torque device, effective length of the damping passage is increased, high damping force can be output, and buffer requirements under high-speed and large impacts can be satisfied.

Description

technical field [0001] The invention relates to the technical field of buffering, in particular to a controllable torque device based on magnetorheological materials. Background technique [0002] Cushioning refers to the process of alleviating the mechanical vibration of vehicles, aerospace equipment, heavy machinery or weapons when they are subjected to high-speed impact, so that the force is gentle. In practice, there are various impact situations, such as: aircraft landing, gun firing, elevator falling, machine tool parts fast reciprocating movement, etc. These impact situations will cause great impact on mechanical equipment, and the parts of mechanical equipment It will generate a lot of dynamic stress, and may even directly cause damage to parts. Therefore, it is necessary to take buffer measures when the mechanical equipment is impacted. In the prior art, the magnetorheological fluid buffer is a new type of intelligent device, and its damping force can be adjusted b...

AI Technical Summary

Problems solved by technology

However, in the existing magneto-rheological fluid buffers, the damping channel is arranged at the gap between the working cylinder and the piston, and it is in the form of a straight line. The effective length of the damping channel formed by it is very short, and the output damping force is very small. The adjustment range is not large, and it is difficult to meet the buffering requirements under high-speed and high-energy impacts

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