Single-axle hydraulic driving device for large-sized mining dump vehicle

Abstract

The invention discloses a single-axle hydraulic driving device for a large-sized mining dump vehicle. The single-axle hydraulic driving device comprises a first power device, a second power device, a first gear converging device for driving a first rear wheel of the mining dump vehicle to rotate, and a second gear converging device for driving a second rear wheel of the mining dump vehicle to rotate, wherein the first power device is provided with two output shafts; both the first gear converging device and the second gear converging device are provided with two input shafts; the two output shafts on the first power device are connected with one input shaft of the first gear converging device and one input shaft of the second gear converging device respectively; the second power device is provided with two output shafts; the two output shafts on the second power device are connected with the other input shaft of the first gear converging device and the other input shaft of the second gear converging device respectively. The single-axle hydraulic driving device for the large-sized mining dump vehicle disclosed by the invention has high speed controllability and high driving efficiency.

Description

technical field [0001] The invention belongs to the field of mine dump trucks, in particular to a single-axle hydraulic drive device for large mine dump trucks. Background technique [0002] Large mining dump trucks are one of the important means of transportation for modern mining enterprises, and are specially used in large construction sites such as open-pit mines, quarries, and hydropower projects. Its work is characterized by short distance and heavy load. It is often loaded with a large electric shovel to go back and forth between the mining point and the unloading point. [0003] Large mining dump trucks can be divided into two types according to the transmission mode: hydraulic mechanical transmission dump trucks and electric transmission dump trucks. The power transmission route of the dump truck with hydraulic mechanical transmission is: engine→hydraulic torque converter→power shift gearbox→transmission shaft→rear drive axle→rear wheel. The power transmission rou...

AI Technical Summary

Problems solved by technology

The hydraulic mechanical transmission not only realizes the smoothness of gear shifting, meets the requirements of operation quality, but also has a certain load adaptive ability, but the characteristics of the hydraulic torque converter determine that the driving speed of mining dump trucks is poorly controllable , and the high-efficiency zone of the transmission system is narrow during operation, which affects the operation efficiency

Electric transmission has few intermediate links, short transmission chain, and less mechanical wear, and can realize stepless speed change, frictionless electric braking and automatic electric differentia

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