CN217859823U

CN217859823U - Press mounting device for axle bearing

Info

Publication number: CN217859823U
Application number: CN202221954841.2U
Authority: CN
Inventors: 吴辰; 吴建军; 黄克; 宋晓艳; 朱金彩; 陈志梁; 孟兴平; 赵非非
Original assignee: Luoyang Chuangkai Axle Co ltd
Current assignee: Luoyang Chuangkai Axle Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-22
Anticipated expiration: 2032-07-27

Abstract

A press-fitting device for an axle bearing comprising: the device comprises a hydraulic cylinder, a small pressure head, a coarse-tooth screw and a large pressure head; the whole press mounting device is mounted by taking the central line of the central shell as a reference, and the coarse-tooth screw rod is matched with the large pressure head and fixedly connected with two ends of an inner hole of the large pressure head; the small pressure head can freely slide on the coarse-tooth screw rod, and a piston rod of the hydraulic cylinder is locked by a nut after being in threaded connection with the coarse-tooth screw rod. The small pressure head is a cone, and the cone head part of the small pressure head is in fit contact with the outer ring of the outer small bearing. The large pressure head is also a cone, and the cone head part of the large pressure head is in fit contact with the outer ring of the inner large bearing. The coarse-pitch screw includes an optical axis portion and a screw portion, and the optical axis portion is mounted in the inner bore of the large ram with a small clearance. The device has compact structure, convenient operation and safe and reliable use. The bearing can be conveniently and flatly pressed into the axle bearing hole at one time, and the flatness completely meets the standard. Meanwhile, the labor intensity of an operator is reduced, the operation time is saved, and the working efficiency is improved.

Description

Press mounting device for axle bearing

Technical Field

The utility model belongs to the mechanical equipment field relates to a pressure equipment device, especially relates to a pressure equipment device for axle bearing.

Background

At present, in the manufacture and installation of axles of products such as small-batch engineering machinery, agricultural machinery and the like, a plurality of middle and small axle enterprises in China have few special tools for the assembly of axle bearing outer rings and more manual installation. The common method is that the copper rod is respectively installed into the inner bearing hole and the outer bearing hole of the central shell from the outside of the large round hole of the central shell of the axle, and the installation of the outer ring of the bearing is not easy to be parallel and level by adopting the copper rod knocking mode, so that the assembly quality is influenced. However, some enterprises with larger mass production can self-manufacture special bearing press-fitting tools for operation, so that the assembly quality of the axle is improved.

The patent of the national intellectual property office in the utility model entitled "a bearing press-mounting device" announced in 10 months and 20 days in 2020, the application number is: 201921941537.2, published as: CN211709189U, application date is: 11/2019. The utility model discloses a bearing press mounting device, include: the device comprises a machine table, a gas-liquid pressure cylinder, a press-fitting coupling head, a pressure head and a workbench; the gas-liquid pressure cylinder is arranged on the machine table, an output shaft of the gas-liquid pressure cylinder penetrates through the upper portion of the machine table and is connected to the press-fitting connecting head, the press-fitting connecting head is connected to the press head in a threaded mode and is connected with two guide shafts, a round shaft hole sleeve which is connected with the guide shafts in a matched mode is arranged on the upper portion of the machine table, and the workbench is arranged on the front upper portion of the machine table. The utility model discloses a completion processing technology that can be better, but the structure is complicated relatively, and the board occupies great space, and the work of giving the operator brings inconveniently.

Therefore, it is completely necessary to provide a press-fitting device for an axle bearing, which has a compact structure, is convenient to operate, occupies a small space and has good processing quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compact structure, convenient operation, occupy that space is little, processingquality is good be used for the pressure equipment device of axle bearing.

The utility model discloses can reach above-mentioned purpose through following technical scheme: a press-fitting device for an axle bearing comprising: the device comprises a hydraulic cylinder, a small pressure head, a coarse-tooth screw and a large pressure head; the whole press mounting device is mounted by taking the central line of the central shell as a reference, and the coarse-tooth screw rod is matched with the large pressure head and fixedly connected with two ends of an inner hole of the large pressure head; the small pressure head can freely slide on the coarse-tooth screw rod, and a piston rod of the hydraulic cylinder is locked by a nut after being in threaded connection with the coarse-tooth screw rod.

The small pressure head is a cone, and the head part of the small pressure head is in fit contact with the outer ring of the outer small bearing.

The coarse-pitch screw includes an optical axis portion and a screw portion, and the optical axis portion is installed in the inner hole of the large ram with a small clearance.

The large pressure head is a cone, and the head part of the large pressure head is in fit contact with the outer ring of the inner large bearing.

The utility model adopts the above technical scheme can reach following technological effect after: the utility model discloses compact structure, convenient operation, use safe and reliable. The bearing can be conveniently and flatly pressed into the axle bearing hole at one time, and the flatness completely meets the national standard. Meanwhile, the labor intensity of operators is reduced, the operation time is saved, and the working efficiency is effectively improved.

Drawings

Fig. 1 is a schematic view of a cross-sectional structure of an initial working state of the press-fitting device for an axle bearing of the present invention;

fig. 2 is the utility model discloses a state section structure sketch map is ended in work that is used for pressure equipment device of axle bearing.

In the figure: 1. the hydraulic cylinder, 2, a small pressure head, 3, a coarse thread screw, 4, a large pressure head, A, an outer small bearing outer ring, B, an inner large bearing outer ring and C, a central shell.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples. As shown in fig. 1~2, a press-fitting device for an axle bearing, comprising: the device comprises a hydraulic cylinder 1, a small pressure head 2, a coarse-tooth screw rod 3 and a large pressure head 4; the whole press mounting device is mounted by taking the central line of the central shell C as a reference, the coarse-tooth screw 3 comprises an optical axis part and a screw part, and the optical axis part of the coarse-tooth screw 3 is mounted in the inner hole of the large pressure head 4 in a small-gap mode and fixedly connected with the two ends of the inner hole of the large pressure head 4; the small pressure head 2 can freely slide on the coarse thread screw rod 3, and a piston rod of the hydraulic cylinder 1 is in threaded connection with the coarse thread screw rod 3 and then locked by a nut. The small pressure head 2 is a cone, and the cone head part of the small pressure head 2 is in fit contact with the outer ring A of the outer small bearing. The large pressure head 4 is also a cone, and the cone head part of the large pressure head 4 is in fit contact with the outer ring B of the inner large bearing.

During operation, the inner large bearing outer ring B is firstly arranged on the positioning end face and the centering conical surface of the large pressure head 4 and penetrates through the large round hole in the central shell C, so that the large pressure head 4 is positioned on the outer circle edge of the pressing end of the inner large bearing outer ring B in the central shell C, and then the outer small bearing outer ring A and the small pressure head 2 are sequentially arranged on the coarse thread screw 3. Then a button on the control panel is pressed to quickly extend the piston rod outwards until the piston rod exceeds a flange at the front end of the auxiliary cylinder body. The piston rod and the coarse-tooth screw rod 3 are screwed by the screw thread and then screwed by the coarse-tooth nut. And then pressing a button on the control panel to ensure that the flange end face at the front end of the auxiliary cylinder body is attached to the corresponding end face of the small pressure head 2, and the outer ring A of the outer small bearing is tightly attached to the outer edge of the outer small bearing hole of the central shell C, which is contacted with the end circle edge firstly. And continuously pressing a button on the control panel to enable the outer ring A of the outer small bearing to be flatly pressed and mounted at the correct position in the bearing hole of the central shell C under the combined action of the centering conical surface and the positioning end surface of the pressure head 2, then pressing the extension button to quickly enable the piston rod to extend outwards, manually rotating to lift the piston rod off, and completing the assembly of the outer ring of the inner bearing and the outer ring of the outer bearing of the central shell C of the axle.

The utility model discloses can conveniently with the disposable level ground pressure equipment of bearing in the axle dead eye, the roughness accords with national standard completely. Meanwhile, the labor intensity of operators is reduced, the operation time is saved, and the working efficiency is effectively improved.

Finally, it should be noted that: while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, various modifications, equivalents and the like which are within the spirit of the invention are intended to be included within the scope of the appended claims.

Claims

1. A press-fitting device for an axle bearing comprising: the device comprises a hydraulic cylinder (1), a small pressure head (2), a coarse-tooth screw (3) and a large pressure head (4); the method is characterized in that: the whole press mounting device is mounted by taking the central line of the central shell (C) as a reference, and the coarse-tooth screw (3) and the large pressure head (4) are mounted in a matched manner and fixedly connected with two ends of an inner hole of the large pressure head (4); the small pressure head (2) can freely slide on the coarse-tooth screw (3), and a piston rod of the hydraulic cylinder (1) is in threaded connection with the coarse-tooth screw (3) and then is locked by a nut.

2. A press-fitting device for an axle bearing as defined in claim 1, wherein: the small pressure head (2) is a cone, and the cone head part of the small pressure head (2) is in fit contact with the outer ring (A) of the outer small bearing.

3. A press-fitting device for an axle bearing as defined in claim 1, wherein: the coarse-thread screw (3) comprises an optical axis part and a screw part, and the optical axis part is installed in the inner hole of the large pressure head (4) in a small clearance mode.

4. A press-fitting device for an axle bearing as defined in claim 1, wherein: the large pressure head (4) is a cone, and the cone head part of the large pressure head (4) is in fit contact with the outer ring (B) of the inner large bearing.