Shock absorption structure of rack and pinion steering gear and installation method of shock absorption structure

Abstract

The invention discloses a shock absorption structure of a rack and pinion steering gear and an installation method of the shock absorption structure. An installation hole is formed in a shell of the steering gear. The shock absorption structure is a shock absorption rubber sleeve which is arranged in the installation hole and connected with an auxiliary frame through a bolt. The shock absorption rubber sleeve comprises an inner metal sleeve body and an outer metal sleeve body, and further comprises a middle rubber sleeve body which is in the stress compressed state when the shock absorption rubber sleeve and the auxiliary frame are locked with the bolt. The middle rubber sleeve body is arranged between the inner metal sleeve body and the outer metal sleeve body. The inner metal sleeve body of the shock absorption rubber sleeve in the installation hole is in contact with the edge of a connection hole of the auxiliary frame in a pressing mode. By means of the shock absorption structure of the rack and pinion steering gear, impact shock can be greatly reduced, shock impact force is prevented from being transmitted to the hands, a steering wheel is prevented from hitting the hands, and accordingly steering comfort is improved; and meanwhile, the risk that the shock absorption sleeve is disengaged from the installation of the shell of the steering gear is avoided, and driving safety is improved.

Description

technical field [0001] The invention relates to a steering gear, in particular to a rack and pinion type steering gear damping structure and an installation method thereof. Background technique [0002] The installation of the rack-and-pinion steering gear is realized through the connection between the housing of the steering gear and the subframe, and the housing of the steering gear is provided with mounting holes connected with the subframe through bolts. Due to the shock and vibration during the driving process of the vehicle, the direct connection between the steering gear shell and the sub-frame will transmit the shock and vibration to the hands, causing the steering wheel to hit the steering wheel, which will affect the steering comfort of the vehicle. In the prior art, a shock-absorbing sleeve is provided in the installation hole to reduce impact vibration. The shock-absorbing sleeve is composed of an inner metal sleeve and an outer rubber sleeve, the inner metal sl...

AI Technical Summary

Problems solved by technology

The structure of this shock-absorbing sleeve can only provide shock-absorbing effect in the lateral direction (that is, in the XY plane). When the vehicle passes through bumpy or poor road conditions, the impact and vibration are relatively large, and effective shock-absorbing effect cannot be provided. It will be transmitted to the hands, and the phenomenon of steering wheel thugs will appear, which will affect the steering comfort of the vehicle. At the same time, when the shock absorber structure of the existing steering gear is subjected to a large impact in the Z direction, there is a risk that the shock absorber will detach from the mounting hole of the steering gear housing

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