Device and method for prolonging service life of gear rack type diverter

Abstract

The invention discloses a device for prolonging the service life of a gear rack type diverter. The diverter comprises a shell body and a rack arranged in the shell body. One end of the rack is pressed through a rack supporting pressing block. The shell body is provided with an installation hole. The installation hole is internally provided with damping rubber sleeves connected with an auxiliary frame through bolts. Each damping rubber sleeve comprises an inner-side metal sleeve body and an outer-side metal sleeve body and further comprises a middle rubber sleeve body in a stress compression state when the damping rubber sleeve and the auxiliary frame are locked through the bolts. The middle rubber sleeve bodies are arranged between the inner-side metal sleeve bodies and the outer-side metal sleeve bodies. A rack lining and a rack stopping block making contact with the rack lining are arranged between the other end of the rack and the shell body. The inner wall of the rack lining is in clearance fit with the rack. The outer wall of the rack lining is provided with O-shaped rings in interference fit with the inner wall of the shell body. According to the device for prolonging the service life of the gear rack type diverter, impact vibration can be greatly reduced, the service life of the diverter is prolonged, and meanwhile, the driving safety is improved.

Description

Technical field [0001] The invention relates to a steering gear, in particular to a device and method for improving the service life of a rack and pinion steering gear. Background technique [0002] The rack-and-pinion steering gear is installed by connecting the housing of the steering gear and the sub-frame, and the housing of the steering gear is provided with mounting holes connected with the sub-frame through bolts. Due to the impact and vibration in the driving process of the vehicle, the shell of the steering gear and the sub-frame are directly connected, the impact and vibration will be transmitted to the hand, and the phenomenon of the steering wheel will be beaten, which will affect the steering comfort of the vehicle. In the prior art, a shock-absorbing sleeve is arranged in the mounting hole to reduce shock and vibration. The shock-absorbing sleeve is composed of an inner metal sleeve and an outer rubber sleeve, the inner metal sleeve is connected with bolts, and the...

AI Technical Summary

Problems solved by technology

The positioning structure of the plastic ferrule not only cannot realize the small clearance fit between the rack and the housing, but also the plastic ferrule has poor impact resistance, resulting in uneven movement of the rack, uneven force, and easy wear, which affects the stability of the rack. service life

In addition, the elasticity of the plastic sleeve is limited, and the rack and the plastic ring are severely worn when the rack moves, which greatly affects the service life of the rack.

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