Strong shock-absorption type rear suspension device of automobile cab

Abstract

The invention discloses a strong shock-absorption type rear suspension device of an automobile cab. The strong vibration-attenuation type rear suspension device comprises a left mechanism and a right mechanism, wherein the left mechanism and the right mechanism are in bilateral symmetry and have the consistent structure; the left mechanism is connected with the right mechanism by an oil tube and a beam; in the left mechanism and the right mechanism, the lower part of an upper connecting bracket is movably connected with a support trench on a hydraulic lock by a middle shaft; the lower part of the hydraulic lock is fixedly connected with the upper end of a middle connecting bracket; a side end of the middle connecting bracket is connected with a lateral shock absorber; the bottom end of the middle connecting bracket is in threaded connection with a spring shock absorber; the lower part of the spring shock absorber is connected with the middle part of the lower connecting bracket; the top of the lower connecting bracket is connected with a front beam and a back beam; and the front beam and the back beam are respectively connected with the lateral shock absorber by front and back beam connecting plates. The strong shock-absorption type rear suspension device has good lateral buffer performance, does not cause reciprocating sidesway of the cab, improves driving safety, can avoid motion discordance with the vertical motion of the cab, has strong guidance action for parts, and can effectively prevent the parts from sliding.

Description

Technical field [0001] The invention relates to a vibration damping device for automobiles, in particular to a rear suspension device of a strong damping type automobile cab, which is particularly suitable for attenuating vibration transmitted from a frame to the cab. Background technique [0002] The strong damping type automobile cab rear suspension device is a device that floats the cab and the frame. It has a good damping function and can attenuate the vibration transmitted from the frame to the cab. The traditional rear suspension devices used to connect the car cab and the frame are only equipped with shock absorbers in the vertical direction, while the sideways generally use connecting plates with rubber bushings or tie rods as guiding and restraining elements. Although this type of strong-vibration car cab rear suspension can attenuate vibration in a single vertical direction, it also has the following shortcomings: [0003] l. Since this type of rear suspension device ado...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the disadvantages and problems of poor lateral cushioning performance in the prior art, which will cause the cab to roll back and forth, and cause uncoordinated movement, and provide a kind of lateral cushioning performance that is better and does not A strong vibration-absorbing rear suspension for a car cab that can cause the cab to tilt back and forth without causing uncoordinated motion

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