A load-bearing rear axle device for a rear-drive electric vehicle
A load-bearing, electric vehicle technology, applied in the directions of axles, wheels, vehicle components, etc., can solve the problem that the rear axle cannot be arranged, and achieve the effect of novel design, high degree of integration, and simple structure
Active Publication Date: 2017-07-28
北汽瑞翔汽车有限公司
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Problems solved by technology
[0003] Aiming at the deficiencies in the above-mentioned prior art, the present invention aims to provide a load-bearing rear axle device for a rear-drive electric vehicle, which has a simple structure and novel design, and solves the problem that the rear-drive electric vehicle with a rear-mounted motor cannot be arranged in a conventional rear axle. In order to meet the assembly functions of hub unit, rear leaf spring buffer and limit, and rear shock absorber, it can realize the performance of bearing the weight of the rear axle and avoiding the motor at the same time, with a high degree of integration
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[0013] The present invention will be described in further detail below in conjunction with specific embodiments and accompanying drawings.
[0014] a kind of like Figure 1-Figure 4 The load-bearing rear axle device of the rear-drive electric vehicle includes a rear axle tube 10 and left and right brackets 11, 12 for fixing the two ends of the rear axle tube 10, and the left and right brackets 11, 12 are integrally cast by cast steel, And on the left and right brackets 11, 12 are respectively integrated wheel hub unit installation holes 14, rear leaf spring installation surface 16, rear shock absorber installation holes 18, wherein, the wheel axis on the two wheel hub unit installation holes 14 and the rear axle tube 10 The tube axes of the tubes are parallel and in front of the tube axis of the rear axle tube 10. On the left and right brackets 11, 12, there are respectively fixed joints that are opposite to the rear leaf spring mounting surface 16 and can limit a rear buffer ...
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The invention discloses a load-bearing rear axle device for a rear-drive electric vehicle, which includes a rear axle tube and left and right brackets for fixing both ends of the rear axle tube. The bracket is respectively integrated with a hub unit mounting hole, a rear leaf spring mounting surface, and a rear shock absorber mounting hole, wherein the wheel axis on the two hub unit mounting holes is parallel to the tube axis of the rear axle tube and is at this In front of the tube axis of the rear axle tube, the left and right brackets are respectively fixedly connected to the rear leaf springs opposite to the rear leaf spring installation surface and can limit a rear buffer block to the rear leaf spring installation surface of the rear leaf spring. Rear bumper limit plate. This invention solves the problem that the conventional rear axle of the rear-drive electric vehicle with the rear motor cannot be arranged, and realizes the assembly functions of the hub unit, rear leaf spring buffer and limit, and rear shock absorption while carrying the weight of the rear axle and at the same time being able to The performance of the motor is avoided, and the degree of integration is high.
Description
technical field [0001] The invention relates to a load-bearing rear axle device of a rear-drive electric vehicle, which belongs to the technical field of automobile chassis assembly. Background technique [0002] At present, the conventional rear-drive pure electric vehicles, especially the longitudinal leaf spring rear suspension, the motors are arranged longitudinally, and the rear axle is no different from the conventional drive axle, which plays the role of load and transmission. However, this arrangement makes After the motor and drive shaft are arranged, the space cannot be effectively used to arrange more batteries, which makes the cruising range of the vehicle insufficient. In order to leave space between the front and rear axles for more batteries, the general arrangement is to arrange the motor on the rear suspension, but the space arrangement requires that the axle tube of the rear axle cannot be coaxial with the wheel center. This requires that the rear axle is n...
Claims
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IPC IPC(8): B60B35/00B60G11/04B60G11/113B60B27/00
Inventor 吴建伟张红
Owner 北汽瑞翔汽车有限公司