Internal Gear Pump Type Circulating Cooling Magnetorheological Fluid Brake

Abstract

The invention discloses an internal meshing gear pump type circulating cooling magneto-rheological fluid brake, which comprises a brake housing, a brake shaft, an excitation coil, a coil installation ring and a magneto-rheological fluid; a gear pump assembly is arranged outside the left end cover, The gear pump assembly includes a pump casing, a driving gear, a driven gear ring, a crescent plate and a cover body, a through hole is provided on the left end cover, and a filter membrane is also provided in the through hole; a outlet is provided on the upper part of the cover body Oil holes; a cooling water tank is also provided on the upper side of the outer cylinder, and a cooling pipeline is arranged in the cooling water tank; the oil outlet hole on the cover communicates with one end of the cooling pipeline through a connecting pipeline, and the other end of the cooling pipeline is connected to a The inlet of the electromagnetic back pressure valve is connected; an oil return hole is opened on the outer cylinder, and the outlet of the electromagnetic back pressure valve is connected with the oil return hole through a pipeline. The invention can effectively improve the cooling effect of the magneto-rheological fluid, thereby effectively improving the stability and braking effect of the brake.

Description

technical field [0001] The invention relates to the technical field of brakes, in particular to an internal gear pump type circulating cooling magneto-rheological fluid brake. 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 above-mentioned properties of the magnetorheological fluid, it has broad application prospects in the ...

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Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to solve the problem of poor brake stability and poor braking effect in the high-temperature environment of the existing magneto-rheological fluid-based brakes, and to provide an internal meshing gear pump type Circulating cooling magneto-rheological fluid brake can effectively improve the stability and braking effect of the brake

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