The steering axle is composed of a front axle, a steeri […]
The steering axle is composed of a front axle, a steering knuckle, a king pin and a wheel hub. specific:
Front axle: Its cross-section is generally I-shaped. In order to improve the torsion strength, there is a thickened part near each end to form a fist shape, which has a through hole, and the king pin is inserted into this hole, and the middle part is bent downward into a concave shape , Its purpose is to reduce the position of the engine, thereby reducing the center of mass of the car; expand the driver's field of vision; reduce the angle between the transmission shaft and the output shaft of the transmission.
Knuckle: It is the hinge for turning the wheel, it is a fork-shaped piece. The upper and lower forks have two coaxial holes for installing the king pin, and the steering knuckle journal is used to install the wheel. The two lugs of the pin hole on the steering knuckle are connected with the fist-shaped parts at both ends of the front axle through the king pin, so that the front wheel can deflect a certain angle around the king pin to turn the car.
King pin: The function is to articulate the front axle and the steering knuckle, so that the steering knuckle swings around the king pin to realize the steering of the wheels. A groove is cut in the middle of the king pin, and the king pin fixing bolt is used to match the groove on it during installation to fix the king pin in the fist-shaped hole of the front axle. The main pin and the pin hole on the steering knuckle are in dynamic fit to achieve steering.
Wheel hub: The wheel hub is supported on the shaft journal at the outer end of the steering knuckle through two tapered roller bearings. The tightness of the bearing can be adjusted with an adjusting nut (installed on the outer end of the bearing).
The function uses the swing of the steering knuckle to deflect the wheels to a certain angle to realize the steering of the car; bear the vertical load between the wheel and the frame, the longitudinal road resistance, the braking force and the lateral force and the moment formed by these forces. Key indicators Due to the complex road conditions, the axles need to have a certain degree of rigidity and strength. The steering wheel has a correct positioning angle and a suitable steering angle. Minimize the mass of the steering wheel and the frictional resistance to the transmission parts