Passenger vehicle wheel edge spline matching and fastening structure

Abstract

The invention belongs to the technical field of riding chassis parts, and particularly relates to a passenger vehicle wheel edge spline matching and fastening structure. The structure comprises a driving shaft, a hub bearing and an elastic check ring, the driving shaft is sleeved with the elastic check ring, the driving shaft is connected into the hub bearing through a spline and connected into the hub bearing in a matched mode through the elastic check ring on the driving shaft, and a plurality of hub bearing disassembling process holes used for disassembling the driving shaft are formed in the right side end face of the hub bearing; the elastic check ring which is convenient to assemble and disassemble is adopted for positioning, a shaft head thread pair is not needed for fastening, endface contact does not exist between the driving shaft and the hub bearing, the assembling and disassembling process is simplified, the purchasing cost is reduced, and the problem of vehicle starting abnormal sound can be solved fundamentally.

Description

technical field [0001] The invention belongs to the technical field of chassis parts for passenger cars, and in particular relates to a spline fit and fastening structure on the side of a passenger wheel. Background technique [0002] Passenger wheel side torque transmission generally uses spline connection, and the fastening of spline connection is fastened by thread, there are two kinds of axle nut and axle head bolt, but because this part transmits rotational torque, in order to ensure the thread For the loosening effect, the spline interference fit is used, and at the same time, a large tightening torque is used (above 200N.m, even close to 400N.m). [0003] This fit and fastening method has the following problems: [0004] 1. Larger tightening torque requires a large torque torque machine, and the cost is high; [0005] 2. Larger tightening torque and larger spline interference fit make it difficult to disassemble and assemble the vehicle; [0006] 3. A large tighten...

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Problems solved by technology

[0004] 1. Larger tightening torque requires a large torque torque machine, and the cost is high;

[0005] 2. Larger tightening torque and larger spline interference fit make it difficult to disassemble and assemble the vehicle;

[0006] 3. A large tightening torque will generate a large axial force, which will cause a large positive pressure on the end surface of the drive shaft and the hub bearing, and the driving torque will inevitably cause the contact end surface of the drive shaft and the hub bearing to appear. Relative sliding, so prone to abnormal noise

[0010] To sum up, it can be concluded that: the thread of the shaft head is attached to the three-generation hub bearing structure for the driving wheel with a riveting structure, which is a redundant design, the procurement cost is high, the assembly process and tooling equipment are complicated, and it will cause the vehicle to start abnormally. problem

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