Cab rear overhang air spring damping device

Abstract

In order to solve the problems that the damping effect of a cab rear overhang is poor, the arrangement of a whole vehicle is affected and the like, the invention provides a cab rear overhang air spring damping device which comprises a cab body, a rear overhang upper bracket, a rear overhang lower bracket, an air bag damper assembly, a tie rod assembly, a height valve assembly, a transverse damper assembly and a hydraulic lock, body grooves are formed in the two sides of the lower portion of the rear wall of the cab body, the upper portion of the rear overhang upper support is fixedly connected into the body grooves, the airbag damper assembly is arranged on the front side of the rear overhang upper support, and the upper portion of the airbag damper assembly is fixedly connected with the rear overhang upper support. The inner side end of the tie rod assembly is connected with the lower end of the rear overhang upper support, and the outer side end of the tie rod assembly is connected with the lower end of the airbag damper assembly. The height valve assembly is connected between the rear overhang upper support and the outer side end of the tie rod assembly, the lower portion of the rear overhang lower support is fixed to a frame, the upper portion of the rear overhang lower support is fixedly connected with the hydraulic lock and used for locking the air bag shock absorber assembly, one end of the transverse shock absorber assembly is fixed to the outer side of the cab body, and the other end of the transverse shock absorber assembly is fixedly connected with the outer side end of the tie rod assembly.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a cab rear suspension air spring damping device. Background technique [0002] Commercial vehicles are an important part of the development of my country's transportation industry and play a pivotal role in economic development. With the advancement of science and technology and the improvement of life quality, people have higher and higher requirements for the driving comfort of commercial vehicles. The rear suspension device of the cab is set between the cab and the frame to cushion the cab and reduce vibration, but there are still the following defects: [0003] 1. The degree of integration is not high, the assembly efficiency is low, the product cost is high, the space is large, and the space of the engine, accessories and cab is compressed, which affects the layout of the vehicle; [0004] 2. The control effect of the left and right swing of the cab is poor, and the structu...

AI Technical Summary

Problems solved by technology

[0003] 1. The degree of integration is not high, the assembly efficiency is low, the product cost is high and the space occupied is large, and the space of the engine, accessories and cab is compressed, which affects the layout of the whole vehicle;

[0004] 2. The control effect on the left and right swing of the cab is poor, and the structure is redundant and complicated, which affects the driving stability;

[0005] 3. The shock absorber is installed on the frame, and the hydraulic lock is arranged above the shock absorber. The up and down jump and left and right swing of the cab during driving will cause the two to be continuously squeezed and rotated to wear, resulting in breakage of the bracket, increased noise, and hydraulic pressure. The reliability of the lock becomes worse, and the vibration reduction effect is poor;

[0006] 4. The airbag shock absorber is arranged on the frame and is close to the engine exhaust system. The temperature of the exhaust pipe and other devices is high during driving, which affects the reliability and life of the airbag

Images