CN216279057U

CN216279057U - Main bearing assembly tool of tunneling machine

Info

Publication number: CN216279057U
Application number: CN202123070906.5U
Authority: CN
Inventors: 胡斌; 许正根; 廖金军; 门天龙; 王婷; 吴双; 李洪滔; 李鹏华
Original assignee: China Railway Construction Heavy Industry Group Co Ltd
Current assignee: China Railway Construction Heavy Industry Group Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-12
Anticipated expiration: 2031-12-08

Abstract

The utility model provides a tunneling machine main bearing assembling tool which comprises a base plate, a jacking piece and a guide piece, wherein the base plate is rotatably connected with the guide piece, the jacking piece is arranged between the base plate and the guide piece, an included angle between the base plate and the guide piece is adjusted through the jacking piece, and a plurality of rolling contact pieces are arranged on the guide piece. According to the assembly tool, the rolling contact pieces are arranged on the guide piece and the vertical plate of the base plate, the rolling contact pieces are in contact with the bearing inner ring, so that the falling of the bearing inner ring can be guided, the surface of the bearing inner ring is prevented from being scratched, the bearing inner ring is ensured to accurately fall into the bearing outer ring, the positioning difficulty during assembly is greatly reduced, and the assembly efficiency is improved.

Description

Main bearing assembly tool of tunneling machine

Technical Field

The utility model relates to the technical field of assembly tools, in particular to an assembly tool for a main bearing of a heading machine.

Background

The main bearing is one of the most key core parts of the heading machine, is called as a heart of the heading machine and is a central button in the operation process of the heading machine, and once the main bearing fails, the heading machine stops for a long time or even is scrapped. Whether the assembly of the main bearing is qualified or not has great influence on subsequent operation work of the main bearing, the assembly tool of the main bearing of the current heading machine is mainly suitable for conventional three-row roller bearings, and obviously not suitable for the assembly of the main bearing with an inner ring of the bearing being an arc surface. The bearing inner ring of the main bearing is an arc surface, and is not easy to position when being assembled with the bearing outer ring, so that the problems of low assembly efficiency and high assembly difficulty are caused.

In conclusion, an assembly tool for a main bearing of a heading machine is urgently needed to solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an assembly tool for a main bearing of a heading machine, and aims to solve the problems of low assembly efficiency and high assembly difficulty caused by the fact that a bearing inner ring of a main bearing is an arc surface and is not easy to position when being assembled with a bearing outer ring, wherein the specific technical scheme is as follows:

the utility model provides a tunnelling owner bearing assembly fixture, includes base plate, jacking piece and guide, the base plate rotates with the guide to be connected, and is equipped with the jacking piece between base plate and the guide, adjusts the contained angle between base plate and the guide through the jacking piece, be equipped with a plurality of rolling contact spare on the guide.

Preferably among the above technical scheme, the base plate includes horizontal plate and vertical plate, the vertical plate sets up the tip of horizontal plate perpendicularly, the guide rotates with the one end that the horizontal plate was equipped with the vertical plate to be connected, and the guide is located the top of vertical plate, be equipped with the rolling contact spare on the vertical plate.

Preferably, the guide piece is hinged with the horizontal plate through a pin shaft.

Preferably in the above technical scheme, one end of the jacking piece is connected with the horizontal plate, and the other end of the jacking piece is connected with the guide piece.

Preferably, in the above technical scheme, the jacking member is an oil cylinder or an air cylinder.

Preferably in the above technical scheme, the assembly fixture further comprises a fixing piece, wherein a mounting hole is formed in the horizontal plate, and the fixing piece penetrates through the mounting hole and then is connected with an assembly object, so that the substrate is fixed.

Preferably, in the above technical solution, the mounting hole is a kidney-shaped hole.

In the above aspect, preferably, the plurality of rolling contacts on the guide are arranged in a row along a longitudinal direction of the guide.

Preferably, in the above technical solution, the rolling contact element is one of a bearing, a ball gimbal and a roller.

The technical scheme of the utility model has the following beneficial effects:

according to the assembly tool, the rolling contact pieces are arranged on the guide piece and the vertical plate, the rolling contact pieces are in contact with the bearing inner ring, so that the falling of the bearing inner ring can be guided, the surface of the bearing inner ring is prevented from being scratched, the bearing inner ring is ensured to accurately fall into the bearing outer ring, the positioning difficulty during assembly is greatly reduced, and the assembly efficiency is improved.

The included angle between the guide piece and the base plate is adjusted through the jacking piece, so that the angle between the guide piece and the horizontal plane can be ensured to be larger than the angle between the cambered surface of the bearing inner ring and the horizontal plane, the falling condition of the bearing inner ring is met, and the bearing inner ring is ensured to normally fall into the bearing outer ring; the angle between the guide piece and the horizontal plane is matched with the angle between the cambered surface of the bearing inner ring and the horizontal plane through the jacking piece, and the mounting position of the base plate can be adjusted by matching with the kidney-shaped hole, so that the assembly tool can be suitable for assembling main bearings of different models and specifications.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of an assembly fixture;

FIG. 2 is a schematic view from a first perspective of an assembly tool application;

FIG. 3 is a second perspective view of an assembly tool application;

the bearing comprises a base plate 1, a horizontal plate 1.1, a vertical plate 1.2, a stud 2, a nut 3, a nut 4, a jacking piece 5, a guide piece 6, a rolling contact piece 7, a pin shaft 8, a bearing outer ring 9 and a bearing inner ring.

Detailed Description

In order that the utility model may be more fully understood, a more particular description of the utility model will now be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1:

referring to fig. 1-3, the assembling tool for the main bearing of the heading machine is specifically a tool for assembling a bearing outer ring 8 and a bearing inner ring 9 of a large-diameter main bearing of the heading machine, namely, the auxiliary bearing inner ring 9 falls into the bearing outer ring 8 during assembling, the assembling tool comprises a base plate 1, a jacking piece 4 and a guide piece 5, the base plate 1 is rotatably connected with the guide piece 5, the jacking piece 4 is arranged between the base plate 1 and the guide piece 5, an included angle between the base plate 1 and the guide piece 5 is adjusted through the jacking piece 4, and a plurality of rolling contact pieces 6 are arranged on the guide piece 5; the rolling contacts 6 of the guide 5 are arranged in a row along the longitudinal direction of the guide 5.

Preferably, the base plate 1 includes a horizontal plate 1.1 and a vertical plate 1.2, the vertical plate 1.2 vertically sets up the tip of horizontal plate 1.1, the one end that guide 5 and horizontal plate 1.1 were equipped with vertical plate 1.2 rotates and is connected, and guide 5 is located the top of vertical plate 1.2, be equipped with rolling contact 6 on the vertical plate 1.2.

In particular, the guide 5 is hinged to the horizontal plate 1.1 via a pin 7 in this embodiment. One end of the jacking piece 4 is connected with the horizontal plate 1.1, the other end of the jacking piece 4 is connected with the guide piece 5, the jacking piece 4 is arranged between the horizontal plate 1.1 and the guide piece 5, so that the jacking piece 4 can drive the guide piece 5 to rotate conveniently, namely, the included angle between the horizontal plate 1.1 and the guide piece 5 is adjusted, and the rolling contact piece 6 on the guide piece 5 can be adjusted to be in contact with the bearing inner ring 9; the falling of the bearing inner ring 9 is guided by the guide 5 and the rolling contact piece 6 on the vertical plate 1.2, and the arrangement of the rolling contact piece 6 can prevent the bearing inner ring 9 from being scratched.

Preferably, the jacking member 4 is an oil cylinder or an air cylinder.

Further preferably, the rolling contact element 6 is one of a bearing, a ball bearing and a roller, and the rolling contact element 6 is in rolling contact with a bearing inner ring 9 of the main bearing.

Further preferably, the assembly fixture further comprises a fixing piece, wherein a mounting hole is formed in the horizontal plate 1.1, the fixing piece penetrates through the mounting hole and then is connected with an assembly object, specifically, the fixing piece is connected with the bearing outer ring 8, and therefore the base plate 1 is fixed. Specifically, the fixing part comprises a stud 2 and a nut 3, the stud 2 penetrates through the mounting hole and then is connected with a bearing outer ring 8, and the end part of the stud is fastened by the nut 3.

Preferably, the mounting hole is a waist-shaped hole, the waist-shaped hole is convenient for adjusting the mounting position of the base plate 1 on the bearing outer ring 8, and the assembly requirements of main bearings with different diameters are convenient to match.

The technical scheme of the embodiment is specifically as follows:

referring to fig. 2 and 3, at least two assembling tools are mounted on the bearing outer ring 8; the installation position of the base plate 1 on the bearing outer ring 8 is adjusted through the waist-shaped hole, and the contact element 6 on the vertical plate 1.2 is ensured to be tangent to the maximum outer diameter of the bearing inner ring 9.

The included angle between the guide piece 5 and the base plate 1 is adjusted through the jacking piece 4, the angle between the guide piece 5 and the horizontal plane is guaranteed to be larger than the angle between the cambered surface of the bearing inner ring and the horizontal plane, and the falling condition of the bearing inner ring is met.

Hoisting the bearing inner ring 9 to be tightly attached to the rolling contact piece 6 on the guide piece 5, then dropping, and guiding through the guide piece and the rolling contact piece on the vertical plate to realize that the bearing inner ring 9 drops into the bearing outer ring 8; through the accurate whereabouts of assembly fixture auxiliary bearing inner race 9, assembly efficiency has been promoted.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a tunnelling owner bearing assembly fixture, its characterized in that includes base plate (1), jacking piece (4) and guide (5), base plate (1) rotates with guide (5) and is connected, and is equipped with jacking piece (4) between base plate (1) and guide (5), adjusts the contained angle between base plate (1) and guide (5) through jacking piece (4), be equipped with a plurality of rolling contact spare (6) on guide (5).

2. The main bearing assembling tool for the heading machine according to claim 1, wherein the base plate (1) comprises a horizontal plate (1.1) and a vertical plate (1.2), the vertical plate (1.2) is vertically provided with an end portion of the horizontal plate (1.1), the guide (5) is rotatably connected with one end of the horizontal plate (1.1) provided with the vertical plate (1.2), the guide (5) is positioned above the vertical plate (1.2), and the vertical plate (1.2) is provided with a rolling contact element (6).

3. The main bearing assembling tool for the heading machine according to claim 2, wherein the guide (5) is hinged to the horizontal plate (1.1) through a pin (7).

4. The main bearing assembling tool for the heading machine according to claim 3, wherein one end of the jacking piece (4) is connected with the horizontal plate (1.1), and the other end of the jacking piece is connected with the guide piece (5).

5. The main bearing assembling tool for the heading machine according to claim 4, wherein the jacking member (4) is an oil cylinder or an air cylinder.

6. The main bearing assembling tool for the heading machine according to any one of claims 2-5, wherein the assembling tool further comprises a fixing member, the horizontal plate (1.1) is provided with a mounting hole, and the fixing member penetrates through the mounting hole and then is connected with an assembling object, so that the base plate (1) is fixed.

7. The main bearing assembly fixture of the heading machine according to claim 6, wherein the mounting hole is a kidney-shaped hole.

8. The main bearing assembly tool of the heading machine according to any one of claims 2 to 5, wherein the rolling contacts (6) on the guide (5) are arranged in a row along the length direction of the guide (5).

9. The main bearing assembly tool of the heading machine according to claim 8, wherein the rolling contact element (6) is one of a bearing, a ball gimbal and a roller.