Method for solving abrasion of lining in wave band positioning mechanism of rotary multi-gear switch

The invention discloses a bush abrasion solving method in a wave band positioning mechanism of a rotary multi-gear switch, the wave band positioning mechanism is provided with a bush and a movable center block in the bush, a sliding piece and a spring are arranged in the movable center block, and the sliding piece abuts against the inner circumferential face of the bush under the acting force of the spring. By adjusting parameters of the spring, parameters of the sliding piece and/or parameters of the lining, it can be guaranteed that the abrasion of the lining does not exceed the surface roughness height within a certain service life, and stable operation hand feeling can be provided. 本发明公开一种旋转类多档开关的波段定位机构中衬套磨损解决方法，波段定位机构具有衬套及衬套内部的活动中心块，活动中心块内部有滑动件及弹簧，滑动件在弹簧的作用力下相抵于衬套内周面。通过调整弹簧参数，滑动件参数和/或衬套参数，可以保证在一定寿命期限内，衬套的磨损不会超过表面粗糙度高度，可以提供稳定的操作手感。