Automobile front axle head assembly role
The main role of the automobile front wheel axle head assembly includes the following aspects :
Bear the whole vehicle mass : the front axle head assembly needs to bear the weight of the car to ensure the stability of the vehicle during the driving .
transfer traction, braking force and driving torque : the front axle head assembly transmits traction, braking force and driving torque to the wheels through hub bearings to achieve vehicle acceleration, deceleration and steering .
ease and absorb road impact : the front axle head assembly can alleviate and absorb the impact and vibration caused by uneven road surface, improve riding comfort .
Improved wheel and ground adhesion : Through optimized design and material selection, the front axle head assembly can improve wheel and ground adhesion, enhance vehicle grip and handling .
The construction and components of the front axle head assembly include :
Hub bearing : through two rolling bearings installed on the steering knuckle, drive the wheel to rotate, and at the same time with the friction plate to form a friction pair brake wheel .
brake hub : the main components of wheel brake, there are two forms of oil brake and air brake, when the vehicle performs the brake command, the brake friction disc expands and contacts with the brake drum, generating friction to achieve vehicle brake .
steering knuckle : through the kingpin installed at both ends of the I-beam, bear the load on the front of the car, and support and drive the front wheel to rotate around the kingpin, to realize the automobile steering .
Care and maintenance advice :
Regular inspection and replacement of grease : according to different models in the hub cavity adding appropriate amount of grease to ensure the normal operation of the bearing and extend the service life .
Keep clean : clean the hub assembly and its related parts regularly to prevent dust and impurities from entering the performance .
Automobile front axle head assembly refers to a component installed on the front axle of automobile, mainly including the front axle, steering knuckle, kingpin and wheel hub and other parts. The front axle assembly uses the swing of the steering knuckle to realize the steering function of the car, so it is also called the steering bridge .
Structure and function of front axle head assembly
front axle : usually made of medium carbon steel by die forging and heat treatment, the cross section is I-shaped, and there is a fist-shaped thickening part near both ends of the front axle for installing the kingpin. The front axle is designed to help lower the engine's position and thus the car's center of mass .
steering knuckle : is the hinge of wheel steering, connected with the front axle through the kingpin, so that the front wheel can deflect a certain Angle around the kingpin, so as to realize the steering function of the car. Steering knuckles have high strength requirements to withstand variable impact loads .
kingpin : hinged with the steering knuckle so that the steering knuckle can swing around the kingpin to realize the steering of the wheel. The kingpin is connected to the front axle by fixing bolts to ensure the stable rotation of the front wheel .
hub : the supporting tire is installed on the journal of the outer end of the steering knuckle by tapered roller bearing. The bearing tightness can be adjusted by adjusting the nut .
The front axle head assembly functions
The front axle head assembly not only bears the weight of the car, but also bears the vertical load between the ground and the frame, braking force, lateral force and the resulting bending moment. These forces ensure stability and safety in all road conditions .
Care and maintenance advice
In order to ensure the normal operation of the front axle head assembly, regular inspection and maintenance are recommended:
Check the tire pressure : ensure that the tire pressure is within a reasonable range to avoid insufficient or too high pressure affecting the safety of driving.
Wheel positioning and balancing : Regular wheel positioning and balancing to ensure smooth wheel operation, reduce wear and vibration.
Avoid emergency braking and sharp turns : Develop good driving habits to avoid emergency braking and sharp turns to reduce wear and tear on the front axle head assembly.
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