Recently, good news came from the Hualing Technology Center. The “Front Wheel Hub and Knuckle Connection Device for Automobile Front Wheels†co-invented by Xia Hong, Wang Xiangzhi, Lu Jun, and Wang Lu has recently obtained the authorization certificate of the State Intellectual Property Office.
It is reported that existing cars, especially trucks, have a connection between the hub of the front axle and the steering knuckle. They are connected by two inner and outer tapered roller bearings, often causing the circumference of the car wheels to fluctuate due to poor concentricity. Larger, not smooth enough to affect the safety of the car. The utility model relates to an automobile front axle hub and a steering joint connecting device, which belongs to an automobile steering device. The utility model is characterized in that a double-row tapered roller bearing is installed on the left cylindrical section and the right cylindrical section of the knuckle main shaft. The inner ring of the roller bearing is divided into a left inner ring and a right inner ring. Grooves are respectively formed on the adjacent end sections of the left and right inner rings and an elastic collar is installed so that the left and right inner rings are elastically connected, and the left and right inner rings are The oil seals are respectively installed on the other end surface. The outer ring of the double-row tapered roller bearing is an integral outer ring. A bearing through hole is opened in the center of the wheel hub. The left and right cylindrical hole diameters of the bearing through hole are the left and the outer ring. The diameter of the right cylindrical surface section is the same and the transition fit. When installing, the double row tapered roller bearing is first pressed into the bearing through hole of the hub from the left side of the hub, and then the double row tapered roller bearing will be installed. The hub is press-fitted to the steering knuckle shaft with good coaxiality. When the hub rotates around the knuckle spindle, the circumference of the hub is small, the car runs smoothly and safely, and the safety of the car is greatly improved.
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