The invention relates to the technical field of electric power steering systems, and discloses an elastic compensation mechanism for a worm gear and a worm, the elastic compensation mechanism comprises a shell, the worm gear, the worm, a first bearing and a second bearing, the worm gear is meshed with the worm, the first bearing is a deep groove ball bearing, and the second bearing is provided with an elastic piece. The invention has the following advantages and effects: the clearance between the worm gear and the worm is kept in a smaller range by the elastic compensation mechanism, and the worm gear and the worm do not generate noise due to collision caused by the large clearance when reversing and quickly passing through an uneven road. The elastic compensation mechanism can compensate the meshing center distance of the worm gear and the worm at different temperatures, and better steering hand feeling is provided. The first working section and the second working section in the elastic piece provide different elastic forces under different conditions, and it is guaranteed that the steering hand feeling is more stable and comfortable under various conditions. And a four-point contact ball bearing is replaced by the deep groove ball bearing, so that the manufacturing cost is greatly reduced, and the product has higher market competitiveness.
本发明涉及电动助力换向系统技术领域,公开了一种用于蜗轮蜗杆的弹性补偿机构,包括壳体、蜗轮、蜗杆、轴承一、轴承二,蜗轮与蜗杆相啮合,轴承一为深沟球轴承,轴承二安装有弹片。本发明具有以下优点和效果:弹性补偿机构使蜗轮与蜗杆之间间隙保持在较小的范围,在换向、快速通过凹凸不平的道路时,蜗轮与蜗杆之间不会因为间隙大而碰撞发出响声。弹性补偿机构在不同温度下均能补偿蜗轮蜗杆啮合中心距,提供更优的转向手感。弹片内的工作段一、工作段二,在不同条件下提供不同大小的弹力,保证在各种条件下转向手感更平稳、舒适。用深沟球轴承替代四点接触球轴承,大幅降低制造成本,使产品更具市场竞争力。
Elastic compensation mechanism for worm gear and worm
一种用于蜗轮蜗杆的弹性补偿机构
2022-03-25
Patent
Elektronische Ressource
Chinesisch
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