Cutting energy-absorbing mechanism for passenger car

Abstract

The invention discloses a cutting energy-absorbing mechanism for a passenger car. The cutting energy-absorbing mechanism for the passenger car comprises a spline shaft, a spline sleeve, a fixing sleeve and a baffle. The spline shaft is arranged in the spline sleeve in a fit and interfered mode. The spline sleeve is movably arranged in the fixing sleeve in a nested mode. The baffle is fixedly arranged on the rear end of the fixing sleeve. The rear end of the spline shaft is fixedly connected with a front wall arc rod of the passenger car. The fixing sleeve is fixedly connected with an upright post of a passenger car steering table. According to the cutting energy-absorbing mechanism for the passenger car, it is guaranteed that a steering column mounting table can absorb partial energy in the frontal impact process( that is, partial kinetic energy produced by the collision can be transformed into heat energy and deformation energy in the process of the spline shaft cutting the spline sleeve), the energy-absorbing is stable, the stiffness and strength of a steering table body can be enhanced, and at the same time, the problems of the vibration of a steering wheel and the like are solved.

Description

technical field [0001] The invention relates to the application field of automobile technology, more specifically to a cutting energy-absorbing mechanism for passenger cars. Background technique [0002] According to relevant data, the casualties caused by frontal collision of passenger cars are second only to the casualties caused by the rollover of passenger cars. In order to deal with the increasingly severe traffic problems, the formulation and implementation of passenger vehicle frontal collision regulations is imminent. According to the regulations formulated by the Ministry of Communications, it is necessary to ensure that there is enough living space in the driving area and that the acceleration in the passenger area is not too large, so as to reduce passenger injuries and seat deformation. [0003] When a car has a frontal collision, the structural deformation and movement of the car's steering wheel and steering column are the main threats to the driver's injury. ...

AI Technical Summary

Problems solved by technology

[0004] Currently, if figure 1 As shown, most of the steering column mounting brackets of automobiles are crushed and deformed to absorb energy, and the steering column mounting bracket must bear the moment from the steering wheel during the working process. Insufficient strength and rigidity, resulting in excessive deformation and easy damage

In addition, due to insufficient connection stiffness, the steering wheel will vibrate too much during idling or normal driving, causing the driver's hands to feel numb and uncomfortable.

Images