Electromechanical coupling transmission device of crawler

Abstract

The invention relates to an electromechanical coupling transmission device of a crawler. The device comprises an engine, a power coupling and gear shifting mechanism, two motors, a power control unit and an energy storage system, wherein the two motors are connected with sun gears of two planet rows of the power coupling and gear shifting mechanism respectively, a gear ring of the two planet rowsof the power coupling and gear shifting mechanism is shared, a clutch is arranged between the two sun gears and the shared gear ring, and the shared gear ring is provided with a brake and output through a planet carrier. The transmission device removes a steering gear set and a zero shaft of double-flow transmission of the crawler, and has flexible allocation, capability of making full use of space and compact structure. Because of the power coupling and gear shifting mechanism, the requirement for the motors is reduced, and the research and manufacture risks of the motors are reduced.

Description

[technical field] [0001] The present invention relates to transmissions and, in particular, to electromechanical coupling transmissions. [Background technique] [0002] At present, the electric transmission device of tracked vehicles is mainly a double-sided motor structure and a transverse shaft structure. Such as image 3 It is a double-sided motor structure, such as Figure 4 It is a horizontal axis structure. [0003] The structure of the double-sided motors is relatively simple. When driving in a straight line, it is realized by driving the left and right driving wheels by the main motor, while in the steering process, it is realized by controlling the speed difference generated by the left and right traction motors, in order to meet the power requirements when turning. requirements, the traction motor must have a large power, therefore, this scheme has high requirements on the motor, which increases the difficulty of motor development; the horizontal axis structure u...

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Problems solved by technology

[0003] The structure of the double-sided motors is relatively simple. When driving in a straight line, it is realized by driving the left and right driving wheels by the main motor, while in the steering process, it is realized by controlling the speed difference generated by the left and right traction motors, in order to meet the power requirements when turning. requirements, the traction motor must have a large power, therefore, this scheme has high requirements on the motor, which increases the difficulty of motor development; the horizontal axis structure uses the main shaft, zero axis and converging planetary row to solve the steering problem of tracked vehicles. The problem of time-consuming power circulation greatly reduces the power requirements of the traction motor, but the disadvantage is that the direct drive motor, the steering motor and the transmission mechanism are arranged side by side, which increases the axial size of the system and is not conducive to the layout of the system in the vehicle

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