Permanent magnetoresistive speed reducer

Abstract

A permanent magnetoresistive speed reducer is composed of a permanent magnet bipolar rotor, stator and rotor shaft, Bearing housing (including bearing), Host shell, Front cover, rear cover, upper magnetic rod, lower magnetic rod, upper bi-directional hydraulic valve, lower bi-directional hydraulic valve, upper push rod, lower push rod, input flange, output flange, etc. Permanent magnetoresistive reducer is a new concept of vehicle auxiliary braking device for heavy trucks, engineering vehicles and military vehicles and aircraft to provide auxiliary braking.

Description

technical field [0001] The invention relates to the field of automobile deceleration braking, and is a vehicle auxiliary braking device with a new concept, in particular to auxiliary braking of heavy trucks, engineering vehicles, military vehicles and aircraft. Background technique [0002] With the development of today's society, the performance of automobiles is constantly improving, and the requirements for vehicle braking performance are increasing day by day. Traditional auxiliary braking includes engine exhaust braking, hydraulic retarder and electromagnetic eddy current retarder. Although they can basically meet the requirements of heavy trucks and The need for auxiliary braking of engineering vehicles, but they all have some defects more or less, such as engine exhaust braking, when the vehicle encounters a long-distance continuous downhill slope, the huge inertia of the heavy-duty truck will push the engine to run at high speed and make noise It is very large. At th...

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Problems solved by technology

[0002] With the development of today's society, the performance of automobiles is constantly improving, and the requirements for vehicle braking performance are increasing day by day. Traditional auxiliary braking includes engine exhaust braking, hydraulic retarder and electromagnetic eddy current retarder. Although they can basically meet the requirements of heavy trucks and The need for auxiliary braking of engineering vehicles, but they all have some defects more or less, such as engine exhaust braking, when the vehicle encounters a long-distance continuous downhill slope, the huge inertia of the heavy-duty truck will push the engine to run at high speed and make noise It is very large. At the same time, the exhaust brake does not work when the vehicle is running at low speed and the braking torque of the engine exhaust brake is also very limited. The hydraulic retarder and the eddy current retarder will consume the energy of the engine and increase the fuel consumption. At the same time, the response time of the hydraulic retarder is relatively slow, so we urgently need to develop a new concept of permanent magnet reluctance retarder that is different from the engine exhaust brake, hydraulic retarder and eddy current retarder. The natural reluctance effect formed by the stator and the rotor assists the braking of the vehicle. It not only has a strong braking torque but also does not consume the energy of the engine. No matter whether the vehicle is at low speed or high speed, the permanent magnet co-reluctance reducer can always brake the vehicle Maintain a constant braking torque while handling quickly, assisting the main vehicle braking system to perform deceleration braking

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