Electric drive axle and mining dump truck

Abstract

The invention provides an electric drive axle and a mining dump vehicle, and relates to the technical field of vehicles. The electric drive axle comprises a first motor, a second motor, a first motoraxle, a second motor axle, a first half shaft, a second half shaft, a first half shaft sleeve pipe, a second half shaft sleeve pipe, a first wheel-side reducer, a second wheel-side reducer, a connecting frame and a lateral pull rod, wherein the first motor axle is fixedly connected with the second motor axle; the first motor is detachably connected with the first motor axle, and the second motor is detachably connected with the second motor axle; electric braking is adopted, so that the braking force is large, and the efficiency is high; one end of each half shaft sleeve pipe is fixedly connected with the corresponding motor axle, and the other end of each half shaft sleeve pipe is fixedly connected with the corresponding wheel-side reducer; one end of each half shaft is in transmission connection with the corresponding motor, and the other end of each half shaft is in transmission connection with the corresponding wheel-side reducer; wheels are independently driven by the two motors,so that the steering of tires is realized through electric differential; one side of the connecting frame is movably connected with the first motor axle and the second motor axle, and the other side of the connecting frame is movably connected with a vehicle frame; one end of the lateral pull rod is connected with the first / second motor axle, and the other end of the lateral pull rod is connectedwith the vehicle frame. Through the adoption of the electric drive axle disclosed by the invention, the bearing capacity is enlarged, and the stability of rear axle driving is guaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an electric drive axle and a mining dump truck. Background technique [0002] The existing electric wheels in mines are mainly used on off-highway mining vehicles above 100T, which adopt a single rear axle drive form, and the suspension adopts oil-pneumatic suspension. However, no dump truck with a capacity of less than 100 tons uses a similar electric drive axle structure. This is due to the high cost and complex structure of the existing electric drive axle. It is too wasteful to use the existing electric drive axle for off-highway mining dump trucks below 100 tons, which will greatly increase the cost, so basically it is more than 100 tons, 100 Off-highway electric drive mining dump trucks under 1 ton are basically driven by mechanical wheels. [0003] The principle of the existing mechanical wheel drive structure is as follows: the middle axle and the rear axle are basical...

AI Technical Summary

Problems solved by technology

[0004] The mechanical wheel drive structure has the following disadvantages: (1) Due to the large number of transmission parts in the current mechanical bridge, the transmission efficiency is reduced

(2) The suspension generally adopts a balanced suspension structure of leaf springs. As the main bearing and shock absorbing parts, leaf springs are subject to complex forces and high failure rates, which affect operating efficiency.

(3) During the use of the vehicle in the mine, due to poor road conditions, high road resistance coefficient, high operating intensity, and severe overloading, longitudinal and transverse tie rods often break, thrust ball bearings deform, and the middle and rear axles are dislocated.

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