Car steering gear transmission clearance T with the size of the steering wheel Angle changes. Straight line driving,
steering gear transmission pair if there is a transmission clearance, once the steering wheel by the lateral force, can be in the clearance T range,
allow the wheel to deviate from the original driving position, so that the car lose stability. In order to prevent this situation,
the transmission clearance of the transmission pair is required when the steering wheel is in the middle and near the position (generally 10°--15°) to be minimal, and it is best to have no clearance.
The wear of steering gear transmission pair in the middle and its vicinity is greater than that at both ends. When the gap
caused by wear near the middle position is too large to ensure the stability of straight line driving, the gap must be readjusted and eliminated.
For this purpose, the end of the steering rocker arm shaft adopts the T groove to install the adjustment screw to adjust the gap. After adjusting the gap,
the steering wheel can be rotated from the middle position to both ends without sticking. For this reason, the transmission clearance characteristics of the
transmission pair should be designed as a gradually increasing shape after leaving the middle position.