The invention discloses an electric power steering system with a backlash compensation mechanism. The system comprises a booster motor, a coupler, a first clamp spring, a first bearing, a booster shell, a worm shaft, an elastic bearing sleeve, a second bearing, a bearing adjusting frame, an adjusting lining, a second clamp spring, an adjusting plug screw, a disc spring set, a pressing block, an adjusting steel ball and a worm gear. The clearance compensation device can be used for compensating the clearance generated by long-time working abrasion of the worm gear and the worm in the electric power steering system. Due to the fact that the wedge-shaped grooves in the bearing adjusting frame can decompose extrusion of the steel balls into component force in the axial direction and the radial direction of the worm, the worm and gear clearance compensation device can compensate for the axial clearance and the radial clearance of the worm and gear at the same time, and the problems that after the worm and gear work for a long time, the clearance is increased, the work smoothness is reduced and noise is increased are solved.
本发明公开了一种具有间隙补偿机构的电动助力转向系统。它包括助力电机、联轴器、第一卡簧、第一轴承、助力器壳体、蜗杆轴、弹性轴承套、第二轴承、轴承调节架、调节衬套、第二卡簧、调节螺塞、碟簧组、压紧块、调节钢球、蜗轮。使用本发明可以补偿电动助力转向系统中,蜗轮蜗杆由于长时间工作磨损而产生间隙。由于轴承调节架上的楔形凹槽能够将钢球的挤压分解为沿着蜗杆轴向和径向的分力,因此本发明可以同时对蜗轮蜗杆的轴向间隙和径向间隙进行补偿,解决了蜗轮蜗杆长时间工作后磨损而导致的间隙增大,进而导致工作平顺性下降,噪声增加等问题。
Electric power steering system with clearance compensation mechanism
一种具有间隙补偿机构的电动助力转向系统
2021-07-30
Patent
Electronic Resource
Chinese
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