CN216682002U

CN216682002U - Wheel axle taking-out device

Info

Publication number: CN216682002U
Application number: CN202123125342.0U
Authority: CN
Inventors: 贺敦军; 刘斌; 张暾; 高歌; 张力文; 邬香; 兰金辉; 王晓凤; 官俊杰
Original assignee: Chongqing Iron and Steel Co Ltd
Current assignee: Chongqing Iron and Steel Co Ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-06-07
Anticipated expiration: 2031-12-13

Abstract

The utility model belongs to the technical field of machinery, and relates to a wheel axle taking-out device, which comprises an end cover, a shaft sleeve and an ejection bolt; the axle sleeve is sleeved on the wheel axle, one end of the axle sleeve is contacted with a bearing seat for mounting the wheel axle, a threaded hole is formed in the end face of the wheel axle, and the end cover is arranged at the other end of the axle sleeve and fixedly connected with the wheel axle through a connecting bolt; the ejection bolt is arranged on the end cover, and one end of the ejection bolt is abutted against the end face of the shaft sleeve; the extending length of the ejection bolt is changed by screwing the ejection bolt, so that the wheel shaft is separated from the bearing seat. The utility model effectively solves the problem of difficult axle taking, has simple structure, easy manufacture and low cost, greatly improves the axle taking efficiency of the roller wheel, effectively saves the replacing time of the wheel axle of the roller wheel and lightens the labor intensity of operators.

Description

Wheel axle taking-out device

Technical Field

The utility model belongs to the technical field of machinery, and relates to a wheel axle taking-out device.

Background

The wheel axle and the bearing seat of the hot continuous rolling rough rolling working roller are in interference fit, and when the wheel axle is worn or damaged, the wheel axle is very difficult to replace. The traditional shaft pulling device cannot be used for shaft taking, the bearing seat body is easily damaged by adopting destructive dismantling or brute force beating, and time and labor are consumed. It is now necessary to design a wheel axle removing device to solve the problem of difficult disassembly.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a wheel axle removing device that solves the problem of difficulty in removing a wheel axle.

In order to achieve the purpose, the utility model provides the following technical scheme:

a wheel axle taking-out device comprises an end cover, a shaft sleeve and an ejection bolt; the axle sleeve is sleeved on the wheel axle, one end of the axle sleeve is contacted with a bearing seat for mounting the wheel axle, a threaded hole is formed in the end face of the wheel axle, and the end cover is arranged at the other end of the axle sleeve and fixedly connected with the wheel axle through a connecting bolt; the ejection bolt is arranged on the end cover, and one end of the ejection bolt is abutted against the end face of the shaft sleeve; the extending length of the ejection bolt is changed by screwing the ejection bolt, so that the wheel shaft is separated from the bearing seat.

Furthermore, the middle part of the end cover is provided with a plurality of through holes, the through holes correspond to threaded holes on the end surface of the wheel axle, and the connecting bolt penetrates through the through holes to be connected with the wheel axle; the end face is also provided with an ejection threaded hole, and the ejection bolt is arranged in the ejection threaded hole.

Furthermore, a plurality of ejection threaded holes are uniformly distributed on the end cover in a circumferential manner.

Further, the inner hole size D2 of the shaft sleeve is 2-5 mm larger than the large outer circle size D1 of the wheel shaft, and the protruding length L1 of the wheel shaft is 2-5 mm larger than the length L2 of the shaft sleeve.

Further, the effective length of the ejection bolt screwed out of the end cover is larger than the length of the wheel shaft embedded into the bearing seat.

The utility model has the beneficial effects that:

the wheel axle taking-out device provided by the utility model effectively solves the problem of difficult axle taking-out, takes out the wheel axle by utilizing the reaction force of the ejection bolt, has a simple structure, is easy to manufacture, has low cost, greatly improves the wheel axle taking-out efficiency, effectively saves the replacement time of the wheel axle of the roller, and reduces the labor intensity of operators.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a wheel axle removing apparatus according to the present invention;

FIG. 2 is a schematic view of a bushing;

FIG. 3 is a schematic view of a wheel axle;

fig. 4 is a schematic view of an end cap.

Reference numerals: 1-a bearing seat; 2-wheel shaft; 3-connecting bolts; 4-shaft sleeve; 5-end cover; 6-ejecting the bolt; 51-a through hole; 52-ejecting the threaded hole.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 4, a wheel axle removing device includes an end cap 5, a shaft sleeve 4, and an ejector bolt 6; the axle sleeve 4 is sleeved on the wheel axle 2, one end of the axle sleeve 4 is in contact with the bearing seat 1 for mounting the wheel axle 2, the end face of the wheel axle 2 is provided with a threaded hole, and the end cover 5 is arranged at the other end of the axle sleeve 4 and is fixedly connected with the wheel axle 2 through the connecting bolt 3; the ejection bolt 6 is arranged on the end cover 5, and one end of the ejection bolt is abutted against the end face of the shaft sleeve 4; the wheel shaft 2 is separated from the bearing block 1 by screwing the ejector bolt 6 to change the extension length thereof.

The middle part of the end cover 5 is provided with a plurality of through holes 51, the through holes 51 correspond to the threaded holes on the end surface of the wheel shaft 2, and the connecting bolt 3 passes through the through holes to be connected with the wheel shaft 2; the end face is also provided with an ejecting threaded hole 52, and the ejecting bolt 6 is arranged in the ejecting threaded hole 52.

The ejection threaded holes 52 are distributed uniformly on the end cover 5 in a circumferential manner.

The inner hole dimension D2 of the shaft sleeve 4 is 2-5 mm larger than the large outer circle dimension D1 of the wheel shaft 2, and the protruding length L1 of the wheel shaft 2 is 2-5 mm larger than the length L2 of the shaft sleeve 4.

A method for disassembling a wheel shaft 2, which adopts the device for taking out the wheel shaft 2 in the embodiment, comprises the following steps:

s1, disassembling the wheel end cover, disassembling the wheel, and removing slag on the wheel shaft 2 and the peripheral bearing seat 1;

s2, measuring the protruding length L1 and the large outer circle size D1 of the wheel shaft 2, processing the shaft sleeve 4, controlling the inner hole size D2 of the shaft sleeve 4 to be 2-5 mm larger than the large outer circle size D1 of the wheel shaft 2, and controlling the protruding length L1 of the wheel shaft 2 to be 2-5 mm larger than the length L2 of the shaft sleeve 4;

s3, sleeving the shaft sleeve 4 on the wheel shaft 2, and flattening the contact surface of the shaft sleeve 4 and the bearing seat 1;

s4, mounting an end cover 5, and fixedly connecting the end cover 5 to the wheel shaft 2 by penetrating the connecting bolt 3 through the through hole;

s5, installing the ejection bolt 6 into the ejection threaded hole of the end cover 5, and manually screwing the ejection bolt 6 to enable the ejection bolt to be stably contacted with the end face of the shaft sleeve 4; the effective length of the ejection bolt 6 screwed out of the end cover 5 is greater than the length of the wheel shaft 2 embedded into the bearing seat 1;

and S6, screwing the ejection bolt 6 in a diagonal crossing manner, so that the wheel shaft 2 gradually withdraws from the mounting hole of the bearing seat 1 under the reaction force until the wheel shaft is completely pulled out.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. A wheel axle removing device is characterized in that: comprises an end cover, a shaft sleeve and an ejection bolt; the axle sleeve is sleeved on the wheel axle, one end of the axle sleeve is contacted with a bearing seat for mounting the wheel axle, a threaded hole is formed in the end face of the wheel axle, and the end cover is arranged at the other end of the axle sleeve and fixedly connected with the wheel axle through a connecting bolt; the ejection bolt is arranged on the end cover, and one end of the ejection bolt is abutted against the end face of the shaft sleeve; the extending length of the ejection bolt is changed by screwing the ejection bolt, so that the wheel shaft is separated from the bearing seat.

2. The wheel axle extracting apparatus according to claim 1, wherein: the middle part of the end cover is provided with a plurality of through holes, the through holes correspond to threaded holes on the end surface of the wheel axle, and the connecting bolt penetrates through the through holes to be connected with the wheel axle; the end face is also provided with an ejection threaded hole, and the ejection bolt is arranged in the ejection threaded hole.

3. The wheel axle extracting apparatus according to claim 2, wherein: the ejection threaded holes are multiple and are circumferentially and uniformly distributed on the end cover.

4. The wheel axle extracting apparatus according to claim 1, wherein: the inner hole size D2 of the shaft sleeve is 2-5 mm larger than the large outer circle size D1 of the wheel shaft, and the protruding length L1 of the wheel shaft is 2-5 mm larger than the length L2 of the shaft sleeve.

5. The wheel axle extracting apparatus according to claim 1, wherein: the effective length of the ejection bolt screwed out of the end cover is greater than the length of the wheel shaft embedded into the bearing seat.