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What are steering rack and tie rod structural characteristics
- Oct 23, 2018 -

The body of the steering rack rod is a steel tube whose connection to the knuckle arm and the steering arm is articulated by a ball. A ball joint assembly consisting of a ball pin, a ball pin seat, a spring seat, a spring and a screw plug is provided at a difficult opening at both ends of the trailing arm. The role of the spring is to ensure that there is no gap in the hinge when the ball is worn, and to mitigate the impact reaction from the road through the wheel and the knuckle arm. The screw plug can adjust the pre-tightening force of the spring. The spring seat is used to limit the deformation of the spring, which can prevent the spring from being overloaded and the ball pin can not escape from the ball pin seat when the spring is broken. This is extremely important for driving safety. In order to ensure safety, after the screw plug position is calibrated, it must also be locked with a split pin. In order to receive the forward or backward impact force on the trailing arm, a spring acts as a buffer, and the springs at both ends of the trailing arm should be mounted behind the ball pin (ie, on the same side).

The tie rod consists of a joint with a spherical hinge at both ends and a rod at the middle. The rod is made of steel pipe or round steel, and the two ends are respectively provided with positive and negative threads (ie, one end is a left-handed thread and one end is a right-handed thread). Therefore, the lever is rotated to change the overall length to adjust the toe of the steering wheel. The ball hinge is composed of a joint, a spring, a ball seat (bowl), a ball stud, a screw plug, a limit pin, a dustproof pad, and the like, and is screwed to the rod and fixed to the rod by a clamp bolt.