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汽车循环球式转向器结构有何特点

l

2025-03-26 02:26:29

推荐回答（1个）

回答1：

轻型车采用循环球式转向器(见图87). M5循环球式转向器由两个传动副组成，即螺杆螺母传动副和齿条齿扇传动副，在螺杆螺母传动副间装有钢球，变滑动摩擦为滚动摩擦。当转动转向盘时，即转动转向螺杆、通过钢球带动转向螺母轴向移动，经转向螺母的齿条与转向摇臂轴齿扇，使转向摇臂轴摆动，并通过转向机构改变前轮方向，使汽车转向。
总成采用不通孔壳体，螺杆螺母副的两端各装一个推力球轴承，上盖通过螺纹与壳体旋合在一起，通过整体上盖及上盖锁紧圈进行螺杆螺母副的预紧调整。摇臂轴的齿扇应同螺母的齿条正确啮合，当转向器处于直线行驶位置，通过调整螺钉的进退来保证汽车直线行驶时具有无间隙啮合，并做到转向调整时的手感中间重、两边轻，使之具有正确的啮合特性。壳体上部设有加油螺塞，下部设有放油螺塞。在车上加油时，一定要加满，确保螺杆螺母副(蜗杆)上的轴承充分润滑。

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