Turnover cab rear suspension assembly

Abstract

The invention discloses a turnover cab rear suspension assembly which comprises a turnover cab rear suspension assembly body. The assembly comprises a rear overhang upper support assembly which is connected to a cab, a rear overhang hydraulic lock assembly, a rear overhang lower support which is connected to a frame, a rear overhang lock plunger which is arranged on the rear overhang upper supportassembly, and the rear overhang hydraulic lock assembly is installed on the rear overhang lower support and detachably buckled with the rear overhang lock plunger. The rear suspension lock plunger comprises a rear suspension lock plunger pin shaft, a rear suspension lock plunger conical sleeve and a gasket; the rear overhang lock plunger pin shaft is installed on the rear overhang upper support assembly, the rear overhang lock plunger pin shaft is sleeved with the rear overhang lock plunger conical sleeve, lubricating oil is arranged between the rear overhang lock plunger conical sleeve and the rear overhang lock plunger pin shaft, and gaskets for sealing the end faces are arranged at the two ends of the rear overhang lock plunger conical sleeve. According to the turnover cab rear suspension assembly, rotational friction between the rear suspension lock plunger and the rear suspension hydraulic lock assembly is transferred to high-lubricity relative rotation in the rear suspension lock plunger, abnormal sounds are eliminated, and reliability and comfort are improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a rear suspension assembly of a reversible cab. Background technique [0002] The existing truck cab rear suspension structure is arranged between the truck cab and the chassis frame as a mechanism for supporting and damping functions. For the hydraulically reversible cab, the rear suspension structure is divided into upper and lower parts, which are connected by hydraulic locks and lock bolts. When lifting, the hydraulic lock lock is opened, and the upper and lower parts are separated. After falling back, the lock buckle is reversed, and the upper and lower parts are locked. [0003] In the rear suspension structure of the existing reversible truck cab, the lock bolt is generally composed of three parts: a pin shaft, a fixing nut and a bushing, and is assembled with the rear suspension upper bracket to form a rear suspension upper bracket assembly. There are no moving or rota...

AI Technical Summary

Problems solved by technology

However, after a period of time, after the lubricating oil is consumed due to scratches, the lubrication fails, and the rotational friction between the lock bolt and the hydraulic lock groove becomes dry friction, which produces a "creaking" sound and accelerates the wear speed, which ultimately affects driving comfort. performance and reliability of the entire rear suspension

Images