Rear hub bearing press-in wrench
A rear wheel hub and bearing technology, applied in the field of rear wheel hub bearing press-in wrench, can solve the problems of tilting between the bearing inner ring and the shaft, damage to the bearing inner ring or shaft surface, and improving the scrap rate, and achieves safe and light operation, small appearance, Efficient effect
Inactive Publication Date: 2012-02-01
FAW GROUP
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- Application Information
AI Technical Summary
Problems solved by technology
However, with the knocking method, since the inner ring of the bearing is located inside the center hole of the hub flange, the knocking force cannot be evenly transmitted to the inner ring of the bearing
Method used
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Embodiment
[0012] The total length of the present invention is 200mm; the outer diameter is φ50mm; the weight is 2kg;
[0013] 1. Unscrew the lead screw 1 to the left by hand to the furthest distance from the cup mouth 5 of the sleeve 2.
[0014] 2. Put the rear wheel hub bearing unit on the wrench, and expose the nut A at the front end of the screw 1 to the outside of the bearing unit.
[0015] 3. Screw the nut A at the front end of the lead screw 1 onto the thread of the drum shaft of the rear wheel by hand.
[0016] 4. Tighten the sleeve 2 with a pneumatic wrench or a hand tool. With the displacement of the sleeve 2 on the screw 1, the hub bearing unit is pressed into the hub shaft accurately, evenly and smoothly.
[0017] 5. Unscrew the sleeve 2 in the opposite direction. With the loosening of the sleeve 2, the nut A at the front end of the screw 1 is also loosened from the hub shaft.
[0018] 6. Inspection: The bearing is pressed into the hub shaft smoothly, without any damage on ...
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The invention discloses a rear hub bearing press-in wrench. The rear hub bearing press-in wrench is characterized by consisting of a screw, a sleeve and a 1 / 2'' connector sleeve; the front end of the screw is provided with a nut 1; two planes which are symmetrical to each other left and right are processed on an outer circle of the top of the sleeve; and an inner thread is processed in the center of the top of the sleeve to form a nut 2. The sleeve and the screw are assembled together, and the tail end of the screw is locked by double nuts; and the top of the sleeve is welded with the 1 / 2'' connector sleeve. The rear hub bearing press-in wrench effectively guarantees that after a hub bearing unit is sleeved on the sleeve, radial position deviation of the sleeve and the hub bearing unit caused by a gravity action is avoided, and verticality deviation of an axial line of the sleeve relative to a bearing inner ring pressure action surface and position deviation of the hub bearing unit in the radial direction of the sleeve are avoided. Meanwhile, the rear hub bearing press-in wrench can fully guarantee that pressure can uniformly act on an end face of a bearing inner ring and an inner diameter and a shaft do not damage each other in the press-in process. The rear hub bearing press-in wrench has the characteristics of small volume, light weight, high efficiency, and can be operated safely and is portable.
Description
technical field [0001] The invention belongs to the technical field of special fixtures for vehicle assembly and adjustment, and in particular relates to a press-in wrench for rear wheel hub bearings. Background technique [0002] Because there is 7mm in the distance between the dust plate of the rear brake of the A130 car and the bottom surface of the hub bearing unit. Therefore, during the assembly process, the dust plate and the hub shaft must be fastened to the rear axle with bolts; then the hub bearing unit is pressed into the hub shaft; other parts are assembled. [0003] However, the hub shaft and the bearing unit are interference fit, and the inner ring of the bearing is located inside the center hole of the hub flange. Usually the line production is press-fitted by a special machine tool. However, there are no such conditions for trial development and after-sales maintenance. The latter often uses the percussion method. However, with the percussion method, since...
Claims
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Inventor 刘凯綦锡鹏
Owner FAW GROUP