Device for press fitting of automobile hub bolt and hub bearing

Abstract

The utility model relates to a device for press fitting of an automobile hub bolt and a hub bearing, which comprises a connecting column, the connecting column is connected with pressure equipment, a flange surface is arranged below the connecting column, and a bearing press fitting pressure head is arranged below the flange surface in a downward extending manner; a bolt press-fitting surface is arranged below the outer shaft of the flange surface in the radial direction; wherein the connecting column, the flange face, the bearing press-fitting pressing head and the bolt press-fitting face are of an integrated structure. The connecting column, the flange face, the bearing press-fitting pressing head and the bolt press-fitting face are of an integrated structure, machining and manufacturing are convenient, bearing press-fitting and bolt press-fitting of a hub can be completed through one-time installation, a clamp does not need to be replaced, meanwhile, a plurality of bolts are pressed downwards at the same time under the action of the bolt press-fitting face, it is guaranteed that the bolts are stressed consistently, and the service life of the hub is prolonged. Flange plate deformation of the automobile hub is reduced; labor intensity of workers is reduced, and labor time is shortened; and the brake hub and the tire rim are convenient to assemble.

Description

Technical Field

[0001] The utility model relates to an assembly technology for automobile wheel hubs, in particular to a device for press-fitting automobile wheel hub bolts and wheel hub bearings. Background Art

[0002] At present, the press-fitting of connecting bolts in automobile hubs, such as Figure 3 As shown, since there are generally more than 6 connecting bolts in the automobile wheel hub 6, two connecting bolts 41 are pressed each time by the pressure equipment 5 through the pressure column 8. After the connecting bolts 41 are pressed, the wheel shell flange surface of the automobile wheel hub 6 is severely deformed, resulting in difficulty in assembling the brake hub and tire rim in subsequent assembly, and difficult to disassemble during repair. Therefore, the symmetrical press-fitting of the two connecting bolts 41 often leads to the above situation.

[0003] And because the automobile wheel hub 6 also needs to press-fit the thrust bearing outer ring 7, Figure 4 shown.

[0004] Therefore, a separate design of the bearing press-fitting head is required. The key point is that the replacement cycle of the press head is long, the labor intensity is high, and the assembly accuracy will be affected.

[0005] The application number in the Chinese patent is 201720217460.9. A wheel hub bearing press-fitting device is proposed. When assembling the wheel hub, the large bearing and the small bearing are pressed together at the same time by the pressing head, that is, the combined assembly is performed by synchronous pressing, which greatly improves the actual assembly efficiency and meets the actual assembly needs.

[0006] and application number 201720506674.8 A front wheel hub bearing outer ring press-fitting tool.

[0007] The above patent documents are only used for wheel hub bearing press-fitting.

[0008] Application No. 202320554139.5 discloses a device for press-fitting wheel hub bolts and wheel hub bearings. The wheel hub bolts and wheel hub bearings are limited and fixed by magnetic wheel hub bolt sleeves and magnetic wheel hub bearing sleeves, and the wheel hub bolts are tightened and fixed and the wheel hub bearings are press-fitted by pressing down the pressing plate and rotating the turntable. The automatic press-fitting of the wheel hub bolts and wheel hub bearings is realized with high efficiency, without the need for manual operation, saving time and effort, and ensuring the accuracy and quality of the press-fitting.

[0009] Application No. 202220053282.1 A positioning device for press-fitting trimmed tire bolts on axle wheel hub ensures that the trimmed tire bolts are not damaged during the press-fitting process and can ensure the concentricity of the trimmed tire bolts and the threaded holes, thereby achieving convenient, reliable and accurately positioned press-fitting. Therefore, the press-fitting quality and efficiency of the trimmed tire bolts are greatly improved, and the scrap rate is also reduced.

[0010] The above patent document is limited to the press-fitting of wheel hub bolts. Summary of the Invention

[0011] In order to solve the assembly problem of wheel hub bolts and wheel hub bearings, the utility model provides a device for press-fitting automobile wheel hub bolts and wheel hub bearings.

[0012] To this end, the technical solution of the present invention is a device for press-fitting automobile wheel hub bolts and wheel hub bearings, including a connecting column, which is connected to a pressure device and is characterized in that a flange surface is provided under the connecting column, and a bearing press-fitting head is provided extending downward from the flange surface; a bolt press-fitting surface is provided radially below the outer axis of the flange surface; wherein the connecting column, the flange surface, the bearing press-fitting head, and the bolt press-fitting surface are an integrated structure.

[0013] The effect is that the connecting column, flange surface, bearing press-fitting head and bolt press-fitting surface of the utility model are an integrated structure, which is easy to process and prepare. The bearing press-fitting and bolt press-fitting of the wheel hub can be completed in one installation without replacing the clamp. At the same time, the bolt press-fitting surface presses down multiple bolts at the same time and ensures that the bolts are subjected to uniform force, thereby reducing the deformation of the flange of the automobile wheel hub; reducing the labor intensity of workers and reducing labor time; and facilitating the assembly of the brake hub and tire rim.

[0014] A further improvement is that the bearing press-fitting head is a hollow cylindrical structure, wherein the lower end of the bearing press-fitting head is matched with the inner conical surface of the thrust bearing outer ring and is provided with a press-fitting step.

[0015] The effect is that: the bearing press-fitting head is a hollow cylindrical structure that reduces the weight. At the same time, the bearing press-fitting head is also matched with the inner conical surface of the thrust bearing outer ring. Finally, it is pressed through the press-fitting step. At this time, it can ensure that the center is not deviated, play the role of centering, positioning, and spacing, and avoid interference.

[0016] A further improvement is that the bolt press-fitting surface is arranged in a ring-shaped structure and extends downward to form a press-fitting relationship with a plurality of connecting bolts.

[0017] The effect is that the bolt pressing surface is arranged in a ring structure and extends downward, so there is no need to match the bolts one by one, and they can be pressed into place directly at one time. The key is that the bolt pressing surface can press multiple bolts down at the same time and ensure that the bolts are subjected to uniform force, thereby reducing the deformation of the flange of the automobile wheel hub.

[0018] A further improvement is that the bolt press-fitting surface is an annular structure forming a hollow annular shape relative to the bearing press-fitting pressure head.

[0019] The effect is that the hollow ring shape is not only for weight reduction, but also for redundancy of the bolts during assembly, providing them with a relatively straightening space and ensuring that each bolt can be evenly stressed under the bolt press-fit surface.

[0020] A further improvement is that the connecting column is a hollow structure and is arranged concentrically with the bolt press-fitting surface and the bearing press-fitting pressure head.

[0021] The effect is that the hollow structure is used to reduce weight, and the concentric arrangement with the bolt press-fitting surface and the bearing press-fitting pressure head is also used for centering, positioning and spacing when the pressure equipment is pressed down.

[0022] A further improvement is that a limiting ring groove is also provided on the shaft diameter of the connecting column.

[0023] The effect is that the setting of the limiting ring groove is for the reliability of connection with the pressure equipment.

[0024] The utility model is not only light in weight, but also can complete all assembly processes with one clamping. The design test results show that after the press-fitting structure is improved, the automobile brake hub and the tire rim are better assembled, and the hub deformation is small; there is no need to rotate the automobile wheel hub, and now it can be pressed and assembled in one time, saving labor time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a state diagram of the forward press-fitting embodiment of the present invention;

[0026] Figure 2 This is a diagram of the reverse press-fit state of the second embodiment of the present invention;

[0027] Figure 3 This is a view of the existing method of press-fitting two bolts using a pressure column;

[0028] Figure 4 This is a view of an existing press-fit thrust bearing outer ring.

[0029] In the figure, 1 is a connecting column, 11 is a limiting ring groove, 2 is a flange surface, 3 is a bearing press-fitting head, 31 is a press-fitting step, 4 is a bolt press-fitting surface, 41 is a connecting bolt, 5 is a pressure device, 6 is a car wheel hub, 7 is a thrust bearing outer ring, and 8 is a pressure column. DETAILED DESCRIPTION

[0030] The utility model Figure 1-2 shown. Example 1:

[0031] A device for press-fitting automobile wheel hub bolts and wheel hub bearings, comprising a connecting column 1, which is connected to a pressure device. A flange surface 2 is provided below the connecting column 1, and a bearing press-fitting head 3 is provided extending downward from the flange surface 2; a bolt press-fitting surface 4 is provided radially below the outer axis of the flange surface 2; wherein the connecting column 1, flange surface 2, bearing press-fitting head 3, and bolt press-fitting surface 4 form an integrated structure.

[0032] The bearing press-fitting head 3 is a hollow cylindrical structure, wherein the lower end of the bearing press-fitting head 3 is matched with the inner conical surface of the thrust bearing outer ring 7 and is provided with a press-fitting step 31 .

[0033] The bolt press-fitting surface 4 is annular in structure and extends downward to form a press-fitting relationship with a plurality of connecting bolts 41 .

[0034] The bolt press-fitting surface 4 is an annular structure and forms a hollow annular shape relative to the bearing press-fitting head 3 .

[0035] The connecting column 1 is a hollow structure and is concentrically arranged with the bolt press-fitting surface 4 and the bearing press-fitting head 3 .

[0036] A limiting ring groove 11 is also provided on the shaft diameter of the connecting column 1. Example 2:

[0037] When the thrust bearing outer ring 7 and the connecting bolt 41 on the other side of the automobile wheel hub 6 are press-fitted in the present invention, the press equipment 5 can be used in the same way.

Claims

1. A device for press-fitting automobile wheel hub bolts and wheel hub bearings, comprising a connecting column (1), wherein the connecting column (1) is connected to a pressure device (5), and is characterized in that: A flange surface (2) is provided under the connecting column (1), and a bearing press-fitting head (3) is provided extending downward from the flange surface (2); a bolt press-fitting surface (4) is provided radially below the outer axis of the flange surface (2); wherein the connecting column (1), the flange surface (2), the bearing press-fitting head (3), and the bolt press-fitting surface (4) are an integrated structure.

2. The device for press-fitting automobile wheel hub bolts and wheel hub bearings according to claim 1, characterized in that: The bearing press-fitting head (3) is a hollow cylindrical structure, wherein the lower end of the bearing press-fitting head (3) is matched with the inner conical surface of the thrust bearing outer ring (7), and is provided with a press-fitting step (31).

3. The device for press-fitting automobile wheel hub bolts and wheel hub bearings according to claim 1, characterized in that: The bolt press-fitting surface (4) is arranged in a ring-shaped structure and extends downwards to form a press-fitting relationship with a plurality of connecting bolts (41).

4. The device for press-fitting automobile wheel hub bolts and wheel hub bearings according to claim 3, characterized in that: The bolt pressing surface (4) is an annular structure and forms a hollow annular shape relative to the bearing pressing head (3).

5. The device for press-fitting automobile wheel hub bolts and wheel hub bearings according to claim 1, characterized in that: The connecting column (1) is a hollow structure and is arranged concentrically with the bolt press-fit surface (4) and the bearing press-fit head (3).

6. The device for press-fitting automobile wheel hub bolts and wheel hub bearings according to claim 5, characterized in that: A limiting ring groove (11) is also provided on the shaft diameter of the connecting column (1).

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