Electro-hydraulic hybrid drive main reducer active bevel gear system

Abstract

The present invention discloses an electro-hydraulic hybrid drive main reducer active bevel gear system. The main structure comprises an active bevel gear, a pump / motor gear, a pump / motor electromagnetic clutch, a variable pump / motor, a transmission and a motor, and the active bevel gear is equipped with a synchronous gear. The active bevel gear is supported on a bearing pedestal via a left tapered roller bearing and a right tapered roller bearing, and the pump / motor gear is externally engaged with the synchronous gear and connected with the variable pump / motor via the pump / motor electromagnetic clutch. When a vehicle is braking, vehicle inertia energy is converted into hydraulic energy and stored in an accumulator; and when the vehicle starts, accelerates or operates under a heavy load condition, the accumulator releases the hydraulic energy to assist the motor in driving the active bevel gear to achieve vehicle travel. The technology is good in succession, structure is compact, bearing conditions of the main reducer active bevel gear can be improved, energy recycling and reusing can be achieved, and motor installed power can be reduced by 30% approximately.

Description

technical field [0001] The invention relates to an active bevel gear system of an electro-hydraulic hybrid drive main reducer. technical background [0002] When the electric vehicle brakes, the brake applies a braking torque to the rotating element through the fixed element on the axle, so that the rotational angular velocity of the rotating element is reduced to achieve the purpose of deceleration. During this process, the friction between the fixed element and the rotating element generates a large amount of heat energy, resulting in energy waste. and damage the brakes. At present, quite a lot of research has been done on the braking energy recovery system of electric vehicles at home and abroad, and significant progress has been made, and many products have also been practically applied. The traditional electric vehicle braking energy recovery system usually converts the recovered braking energy into electrical energy and stores it in the battery for reuse. The recovery...

AI Technical Summary

Problems solved by technology

Compared with the "active bevel gear system of electro-hydraulic hybrid drive main reducer" of the present invention, its structural principle is obviously different. Instead of directly extracting or inputting power from the original active bevel gear, it adds an active bevel gear and its corresponding The support and connection elements of the original drive lead to a relatively loose structure; the rear axle housing has been greatly changed, and the technical inheritance and continuity are not good, which is not conducive to industrialization; the stress situation of the original driving bevel gear has not improved

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