Automobile and automobile air suspension with rear axle driving function

Abstract

The invention relates to the field of automobiles, and discloses an automobile air suspension with a rear axle driving function. The number of suspension connecting assemblies is two, the suspension connecting assemblies are arranged on the left side and the right side of an automobile frame, the left end and the right end of an axle are connected with the two suspension connecting assemblies respectively, and a bracket is arranged between the two suspension connecting assemblies; a rear axle driving mechanism comprises a lifting air bag, bearing air bags, a lifting support and a fixing support, the upper end of the fixing support is connected with a cross beam of the automobile frame, the top and the bottom of the lifting air bag are connected with the upper end of the lifting support and the lower end of the fixing support respectively, the lower end of the lifting support is connected with the middle of the bracket, the bearing air bags are connected between the automobile frame and the bracket, and the two bearing air bags are arranged on the left side and the right side of the lifting air bag correspondingly. The invention further discloses an automobile applying the automobile air suspension with the rear axle driving function. The air suspension has the effects of realizing that the rear drive axle can be lifted and put down, is light in weight, can be arranged close to the rear side of an automobile, and is suitable for vehicles with large axle loads.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an automobile and an automobile air suspension with a rear axle drive function. Background technique [0002] Lifting bridge technology is a structure that can effectively reduce fuel consumption. Its working principle is that when the vehicle is running with little cargo or no load, one of the bridges in the vehicle can be lifted to lift it off the ground without generating power output, thereby reducing road surface load. Rolling resistance and tire wear, so as to save fuel consumption. When the lifting axle is a driving axle, since the driving axle has a rear cover protruding structure, an avoidance space must be reserved, resulting in a large distance between the lifting airbag and the axle. The structural strength requirements of the connectors between the bridges are high, resulting in heavy weight of the connectors, and the welds between the connectors and the axle housing are p...

AI Technical Summary

Problems solved by technology

[0002] Lifting bridge technology is a structure that can effectively reduce fuel consumption. Its working principle is that when the vehicle is running with little cargo or no load, one of the bridges in the vehicle can be lifted to lift it off the ground without generating power output, thereby reducing road surface load. Rolling resistance and tire wear, so as to save fuel consumption. When the lifting axle is a driving axle, since the driving axle has a rear cover protruding structure, an avoidance space must be reserved, resulting in a large distance between the lifting airbag and the axle. The structural strength requirements of the connectors between the bridges are high, resulting in heavy weight of the connectors, and the welds between the connectors and the axle housing are prone to cracking due to excessive force and stress concentration; among them, the thrust of the air suspension The rods are generally arranged horizontally, and the angle between the axle and the lateral thrust rod becomes smaller during the lifting process. Therefore, an avoidance space must be reserved for the connecting parts between the lifting airbag and the axle, so that the connecting parts cannot be effectively strengthened in the height direction, and can only be It is compensated by lateral reinforcement, but the strengthening effect is poor; there is a lateral thrust rod support on the axle, and the space for the lifting airbag and the axle connection is limited. If the lateral thrust rod support and the lifting axle support are integrated , the weight of the lifting device is heavy and the force is complicated; in addition, the two ends of the lower bracket of the lifting airbag are connected with the longitudinal beam of the frame, and must pass through the upper part of the load-bearing airbag, so that the air pressure sensor on the load-bearing airbag is not easy to install, and it is easy to connect with the lifting axle. The space of the lower bracket interferes, making it difficult to install the air pressure sensor

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