The invention discloses an electric power steering system capable of adjusting a clearance between a worm gear and a worm and an automobile. According to the electric power steering system, a first swing bearing is arranged at one end of a shell, a guide groove is formed in the other end of the shell, a supporting seat is arranged in the guide groove and can move in the guide groove, and a second swing bearing is arranged in the supporting seat; the two ends of the worm are arranged in the first swing bearing and the second swing bearing respectively, the worm gear is rotationally arranged in the shell and is in meshing transmission with the worm, the worm is used for being connected with a power-assisted steering motor, and the worm gear is used for being connected with an input shaft of a steering gear; the gap adjusting assembly is used for driving the supporting base to move along the guide groove, so that the worm gets close to or away from the worm gear, and the gap between the worm and the worm gear is changed. According to the invention, not only can the steering performance damage caused by large system friction due to small clearance be avoided, but also the problem of abnormal sound on a bumpy road due to large clearance caused by long-time abrasion of the worm gear and the worm can be avoided.
本发明公开了一种能够调节蜗轮蜗杆间隙的电动助力转向系统及汽车,包括:第一摆动轴承设置于壳体的一端,壳体另一端设有导向槽,导向槽中设有支撑座,支撑座能够在导向槽中移动,第二摆动轴承设置于支撑座中;蜗杆的两端分别设置于第一摆动轴承和第二摆动轴承中,蜗轮可转动的设置于壳体中且与涡杆啮合传动,蜗杆用于连接转向助力电机,蜗轮用于连接转向器的输入轴;间隙调节组件用于带动支撑座沿导向槽移动,使蜗杆靠近或远离蜗轮,从而改变蜗杆与蜗轮之间的间隙。本发明不仅可以避免因间隙偏小引起系统摩擦大导致的转向性能受损,还可以避免因蜗轮蜗杆长时间磨损引起间隙偏大导致的颠簸路异响问题。
Electric power steering system capable of adjusting clearance between worm gear and worm and automobile
能够调节蜗轮蜗杆间隙的电动助力转向系统及汽车
2022-05-13
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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