Temperature-controlled circular variable wedge-shaped magnetorheological fluid clutch

Abstract

The invention discloses a temperature-controlled circular variable wedge-shaped magnetorheological fluid clutch. The temperature-controlled circular variable wedge-shaped magnetorheological fluid clutch comprises a driving shaft, a clutch shell, a driven shaft, a magnet exciting coil and a magnetorheological fluid; a coil groove is formed in the outer side of the clutch shell; the magnet excitingcoil is mounted in the coil groove; a plurality of isolating baffle plates are arranged around a circle of the outer side of a transmission section; a first returning spring is arranged on the outer side of each isolating baffle plate; the gap among the isolating baffle plates and the inner wall of an outer shell are filled with the magnetorheological fluid; a centrifugal plate is arranged on theinner side of each isolating baffle plate; a filtering hole is also formed in each isolating baffle plate; a filtering film is mounted in the filtering hole; two electric brush sliding rings are alsoarranged on the driving shaft in a sleeving manner; one end of the magnet exciting coil is connected with one electric brush sliding ring after passing through a shape memory alloy temperature controlswitch; and the other end is directly connected with the other electric brush sliding ring. According to the temperature-controlled circular variable wedge-shaped magnetorheological fluid clutch, themaximum value of the torque which can be transferred is greater; the transferring efficiency is higher; the energy consumption is lower; and the stability of a transmission process can be ensured.

Description

technical field [0001] The invention relates to the technical field of clutches, in particular to a temperature-controlled circular variable wedge magneto-rheological fluid clutch. Background technique [0002] Magneto-rheological fluid is a solid-liquid two-phase functional material whose shape and performance are constrained and controlled by an external magnetic field; it is a magnetic smart material, which is mainly composed of magnetic particles and base fluid, and is controlled by an external magnetic field. When a magnetic field is present, it exhibits the properties of Newtonian fluid; after adding a magnetic field, the viscosity of the magnetorheological fluid will change by several orders of magnitude in a very short time, showing mechanical properties similar to solids; the entire change process is rapid and continuously controllable reversible. [0003] Based on the magnetorheological effect of the magnetorheological fluid, it is widely used in clutches, such as...

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Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to solve the problems that the maximum value of the torque transmitted by the existing transmission device is small, the transmission efficiency is low, the energy consumption is high, the automatic adjustment cannot be performed according to the real-time temperature, and the stability is poor. Provide a temperature-controlled circular wedge-shaped magneto-rheological fluid clutch, which can transmit a larger maximum torque and higher transmission efficiency, and can automatically adjust the transmitted torque according to real-time temperature to reduce energy consumption and ensure transmission process stability

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