Traveling hydraulic drive system of the pallet truck with explosion-proof electro-hydraulic differential steering control device

Abstract

The invention belongs to the field of vehicle differential steering control, and particularly relates to a support carrying vehicle travelling hydraulic drive system having an anti-explosion electro-hydraulic differential steering control device, which is used for accurately control differential steering of closed hydraulic systems arranged on a left side and a right sides of a support carrying vehicle during turning, and can solve the problem that the conventional support carrying vehicles do not achieve suitable differential control. A left side and a right side of the support carrying vehicle travelling hydraulic drive system are symmetrical to each other; each traveling hydraulic system at the left side and the right includes a closed pump, a front motor, a back motor, an electronic proportional pressure reducing valve, and a pilot valve. The support carrying vehicle travelling hydraulic drive system can ensure the safe use of vehicles in underground coal mines, can achieve differential steering of the support carrying vehicles, can reduce the turning radius of the vehicles, can prolong the service life of tires, can ensure safe operation of the vehicles, and can improve the working efficiency of the whole machine.

Description

technical field [0001] The invention belongs to the field of vehicle differential steering control, and in particular relates to a traveling hydraulic drive system of a support carrier with an explosion-proof electro-hydraulic differential steering control device. Background technique [0002] Traditional vehicles transmit power through mechanical transmission. The wheels are driven by several devices such as clutch-transmission-transmission shaft-differential-half shaft. The differential is used to realize the differential synchronization of the left and right wheels. In addition to the mechanical differential, there is also a hydraulic adaptive differential steering used on engineering vehicles. The differential steering is achieved through the variable motor that drives the wheels through the fluid transmission adaptive feature. . [0003] The wheels of the front frame of the support truck are driven wheels, and the four wheels of the rear frame are driven by independent...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing rack trucks do not have proper differential speed control, the present invention provides a hydraulic driving system for rack trucks with an electro-hydraulic differential steering control device, which is used to precisely control the closing of the left and right sides of the rack truck. Differential steering when cornering with hydraulic system

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