Transmission device with fan fluid-viscosity speed regulation function for powered rear-mounted tracked vehicles

Abstract

The invention discloses a transmission device used for a power postposition tracked vehicle and with a fan liquid viscosity speed regulation function. The transmission device comprises a five planet rows, three fluid power hydraulic elements, eight spiral bevel gears, eleven straight gears, four brakes and three clutches. The five planet rows are arranged in order and are connected mutually through transmission components. An input shaft is connected with the first spiral bevel gear and is used for inputting power of an engine to the transmission device. Four output ends are connected with a first output shaft, a second output shaft, a fan first output end and a fan second output end correspondingly. The first output shaft and the second output shaft are connected with vehicle side speed reducers, and power is output to a driving wheel. The fan first output end and the fan second output end are connected with a fan and are used for driving the fan. Through the transmission device, hydraulic stepless steering and fan stepless speed regulation are achieved, the acceleration performance of the postposition power tracked vehicle is promoted, stepless steering functions of all gears are achieved, and stepless adjustment of fan rotation speed is achieved.

Description

technical field [0001] The invention belongs to the technical field of crawler vehicle transmission, and relates to a comprehensive transmission device for a powered rear-mounted crawler vehicle, which integrates a hydraulic steering device and a hydraulic-viscosity speed regulating device. Background technique [0002] There are two types of transmission devices for driving tracked vehicles. The first type generally uses fixed-axis gearboxes to transmit engine power to the driving wheels of tracked vehicles in accordance with multiple fixed transmission ratios to drive the track to rotate. The steering of tracked vehicles generally passes Brake one side of the track, or reduce the speed of one side of the track to achieve. The second type integrates steering and speed change to form a dual power flow comprehensive transmission, which is composed of a direct driving power transmission path, a steering power transmission path and an auxiliary output power transmission path. T...

AI Technical Summary

Problems solved by technology

[0003] Most of the powered rear-mounted tracked vehicles in my country are mainly driven by fixed-axis mechanical transmission. The brake steering is used to drive the fan through the mechanical transmission, which affects the acceleration performance of the vehicle. It is impossible to realize the stepless change of the transition radius of each gear and the fan speed stepless adjustment

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