CN218891811U

CN218891811U - Bearing dismounting device

Info

Publication number: CN218891811U
Application number: CN202223231796.0U
Authority: CN
Inventors: 钟新宝; 张佳东; 陈佳辉; 姚诗荣
Original assignee: Zhenshi Group Huazhi Research Institute Zhejiang Co ltd
Current assignee: Zhenshi Group Huazhi Research Institute Zhejiang Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-04-21
Anticipated expiration: 2032-12-01

Abstract

The utility model discloses a bearing dismounting device which comprises a supporting piece and at least two pull claws, wherein each pull claw is detachably connected with the supporting piece respectively, each pull claw is provided with a plurality of first mounting holes, the pull claws are connected with the supporting piece through different first mounting holes so as to adjust the length of the pull claws extending out of the supporting piece, the bearing dismounting device also comprises an air cylinder, the piston end part of the air cylinder extends out of the supporting piece, when a bearing is dismounted, the bearing is clamped by the at least two pull claws, the piston end part is abutted with the end part of a shaft, and the piston end part pushes the shaft so as to separate the bearing from the shaft. The bearing dismounting device disclosed by the utility model is convenient for dismounting bearings with different specifications and different mounting positions, can adapt to the requirements of various production occasions, is flexible and convenient to use, and improves the dismounting efficiency and the use experience.

Description

Bearing dismounting device

Technical Field

The utility model relates to the technical field of bearing disassembly, in particular to a bearing disassembly device.

Background

In the use and maintenance of mechanical equipment, the bearings mounted on the shaft are usually dismounted by adopting the two-claw pulling horses, but the dismounting efficiency of the prior art in the actual production process is lower, the application range is narrower, the universality is not high, and the bearings with different specifications can be dismounted by configuring the two-claw pulling Ma Cai with different specifications.

Disclosure of Invention

In order to overcome the above-described drawbacks of the prior art, the present utility model aims to provide a bearing dismounting device to solve the above-described problems.

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

a bearing dismounting device for dismounting a bearing mounted on a shaft;

the bearing dismounting device comprises a supporting piece and at least two pull claws, each pull claw is detachably connected with the supporting piece, each pull claw is provided with a plurality of first mounting holes, and the pull claws are connected with the supporting piece through different first mounting holes so as to adjust the length of the pull claws extending out of the supporting piece;

the bearing dismounting device further comprises a cylinder, the piston end of the cylinder extends out of the supporting piece, when the bearing is dismounted, the piston end is abutted with the end of the shaft, and the bearing is clamped by the at least two pulling claws so that the bearing is separated from the shaft.

Optionally, the pull claw includes a first extension portion and a second extension portion, and the plurality of first mounting holes are uniformly distributed on the first extension portion along an extension direction of the first extension portion;

the second extending part is provided with a first preset angle with the first extending part, the first end part of the first extending part is connected with the supporting piece, the second end part of the first extending part is connected with the second extending part, and the second extending part is used for being abutted to the shaft and the bearing.

Optionally, the first preset angle is 90 degrees, and the pull claw is in an L shape.

Optionally, the second extension includes a first face facing the support and perpendicular to the first extension, the first face being planar and adapted to abut a side wall of the bearing.

Optionally, the second extension portion includes a second face, the second face is located in a side of the second extension portion away from the first end portion, the second face is an arc surface, and the second face is used for being abutted with the shaft.

Optionally, the second extension portion further includes a third face, the third face is disposed opposite to the first face, and the third face is an inclined plane.

Optionally, the bearing dismounting device further comprises a cylinder top seat and a cylinder base, wherein the cylinder base is fixed on the supporting piece, the cylinder top seat and the cylinder base are correspondingly arranged, and the cylinder is arranged between the cylinder top seat and the cylinder base.

Optionally, a plurality of limiting parts are arranged between the cylinder top seat and the cylinder base to limit and protect the cylinder.

Optionally, the bearing dismounting device further comprises a buffer piece, wherein the piston end of the cylinder is connected with the buffer piece, and the buffer piece is abutted with one end of the shaft.

Optionally, a mounting groove is formed in the side portion of the supporting piece, and one end of the pulling claw is accommodated in the mounting groove;

the support piece is in the mounting groove both sides form third tip and fourth end respectively, bearing dismounting device still includes the installation axle, the installation axle passes in proper order the third tip first mounting hole with the fourth end will draw claw detachable swing joint to be in on the support piece.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application, the objects and other advantages of the application may be realized and obtained by the construction particularly pointed out in the description, claims and drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model. In the drawings, like reference numerals are used to identify like elements. The drawings, which are included in the description, illustrate some, but not all embodiments of the utility model. Other figures can be derived from these figures by one of ordinary skill in the art without undue effort.

Fig. 1 is a schematic view of a bearing dismounting device according to the utility model.

Fig. 2 is a structural plan view of the bearing dismounting device shown in the present utility model.

Fig. 3 is a schematic view of the structure of the bearing dismounting device shown in the utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. It should be noted that, in the case of no conflict, the embodiments and feature vectors in the embodiments in the present application may be arbitrarily combined with each other.

In the use and maintenance process of mechanical equipment, the bearing installed on the shaft is often required to be taken down for operation, and as the bearing and the shaft are usually in transition fit or interference fit, the connection is relatively tight, the bearing is difficult to disassemble and is easy to damage the bearing and the shaft, the bearing installed on the shaft is usually disassembled by adopting a two-claw pull-horse at present, but the disassembly efficiency of the prior art is lower, the application range is narrower, the universality is not high, and the two-claw pull Ma Cai with different specifications is required to be configured to realize the disassembly of the bearings with different specifications.

In order to overcome above-mentioned technical problem, this application provides a bearing dismounting device, including support piece and two at least pull the claw, every pulls claw and support piece and can dismantle respectively and be connected, and every pulls the claw and sets up a plurality of first mounting holes, draws the claw to be connected with support piece through different first mounting holes to adjust and draw the claw to stretch out support piece's length, bearing dismounting device still includes the cylinder, and the piston tip of cylinder stretches out to support piece's outside, when dismantling the bearing, two at least pulls claw centre gripping bearings, and piston tip and the tip butt of axle, piston tip push away the axle so that bearing and axle break away from. The bearing dismounting device disclosed by the utility model is convenient for dismounting bearings with different specifications and different mounting positions, can adapt to the requirements of various production occasions, is flexible and convenient to use, and improves the dismounting efficiency and the use experience.

According to an exemplary embodiment, as shown in fig. 1-3, the bearing dismounting device includes a support member 20 and at least two pull claws, where each pull claw is detachably connected to the support member 20, and the pull claws are used to clamp the bearing 42, and in this embodiment, the number of the pull claws is two, and it is understood that, in order to improve the stability of clamping, a person skilled in the art may increase the number of the pull claws as needed in an actual production and use process, for example, three pull claws or four pull claws are provided.

The pull claw includes a first extension portion 11 and a second extension portion 12, where a first end 111 of the first extension portion 11 is connected to the support member 20, a second end 112 of the first extension portion 11 is connected to the second extension portion 12, and a first preset angle is formed between the first extension portion 11 and the second extension portion 12, and in this embodiment, the first preset angle is 90 ° and the first extension portion 11 is perpendicular to the second extension portion 12, so that the pull claw is in an L-shape as a whole. Wherein, the first extension portion 11 is provided with a plurality of first mounting holes 113, and the plurality of first mounting holes 113 are illustratively uniformly distributed on the first extension portion 11 along the extension direction of the first extension portion 11. The pull claw can be connected with the supporting piece 13 through different first mounting holes 113, so that the length of the pull claw extending out of the supporting piece 20 is adjusted, and the bearing at different mounting positions is detached. For example, when the bearing 42 is installed on the shaft 41 at a position distant from the end of the shaft 41, the length of the pull claw extending out of the support 20 may be adjusted to be longer; when the bearing 42 is mounted on the shaft 41 at a position nearer to the end of the shaft 41, the length of the pull claw extending out of the support 20 can be shortened.

When the bearing 42 is detached, the second extension 12 is configured to abut against the shaft 41 and the bearing 42, specifically, the second extension includes a first surface 121, a second surface 122, and a third surface 123, where the first surface 121 is a surface of the second extension 12 adjacent to the first extension 11, that is, the first surface 121 faces the support 20 and is perpendicular to the first extension 11, the first surface 121 is configured to abut against a sidewall of the bearing 42, the second surface 122 is located on a side of the second extension away from the first end, the second surface 122 abuts against the shaft 41, and the third surface 123 is disposed opposite to the first surface 121.

The first surface 121 is a plane, which is used for increasing the contact area between the second extension portion 12 and the bearing 42, so as to reduce the pressure of the second extension portion 12 to the bearing 42 when the bearing dismounting device works, avoid the excessive concentration of the pressure, and simultaneously, the smooth plane can reduce friction and avoid damaging the bearing 42. The second surface 122 is an arc surface for reducing the contact area between the second extension 12 and the shaft 41 and preventing the second extension from scraping the shaft 41. The third surface 123 is an inclined surface for enabling the second extension portion 12 to avoid other parts during operation, and meanwhile, the contact area between the second extension portion 12 and the shaft 41 can be further reduced by the aid of the inclined surface 123, and abrasion is prevented.

Taking two pulling claws as an example, referring to fig. 1, the top and bottom of the supporting member 20 are provided with mounting grooves 21, the supporting member 20 includes a third end 23 and a fourth end 24, the mounting grooves 21 are located between the third end 23 and the fourth end 24, and the first ends 111 of the pulling claws are accommodated in the mounting grooves 21, i.e. the two pulling claws are oppositely arranged. The installation shaft 22 sequentially passes through the third end 23, the first installation hole 113 and the fourth end 24, and the pull claw is detachably and movably connected to the support piece 20, so that the pull claw can rotate in a second preset angle range, the pull claw can be conveniently opened and closed, the bearing with different diameter specifications is clamped and disassembled, it can be understood that the installation shaft can comprise bolts, screws or other fasteners convenient to disassemble, the second preset angle range can be set according to actual requirements, and the application does not excessively limit the process.

The bearing dismounting device further comprises a cylinder 31, the cylinder base 32 is arranged on the supporting piece 20, the cylinder top seat 33 is correspondingly arranged with the cylinder base, the cylinder 31 is arranged between the cylinder base 32 and the cylinder top seat 31, a plurality of limiting pieces 34 are further arranged between the cylinder base 32 and the cylinder top seat 31, the limiting pieces 34 are arranged around the cylinder 31, and the limiting pieces 34 are used for limiting and protecting the cylinder 31 and assisting in fixing the position of the cylinder 31. The piston end 311 of the cylinder 31 extends out of the support 20, the piston end 311 is connected with a buffer 312, the buffer 312 is abutted with one end of the shaft 41, and the buffer 312 is used for buffering the thrust of the cylinder 31 and preventing the end of the shaft 41 from being damaged due to the fact that the thrust of the cylinder 31 is too large.

Illustratively, the support member 20 and the cylinder base 32 are provided with through holes (not shown in the drawings), the piston end 311 extends out of the support member 20 through the through holes to be connected with the buffer member 312, and the shape and size of the through holes can be adaptively adjusted according to the specification of the piston end 311 of the cylinder 31, which is not limited in this application.

As shown in fig. 3, the bearing dismounting device of the present utility model works by adjusting the mounting position of the mounting shaft 22 to adjust the clamping length of the pull claw, i.e. selecting a proper one from the plurality of first mounting holes 113 according to the mounting position of the bearing 42 on the shaft 41, removably and movably connecting the pull claw to the support member 20 by the mounting shaft 22, opening the pull claw by a certain angle, then clamping the bearing 42, causing the first surface 121 of the second extension 12 to abut against the side wall of the bearing 42 and the second surface 122 to abut against the shaft 41, at this time, the piston end 311 of the cylinder 31 extends to push the shaft 41 to move away from the support member 20, and the bearing 42 will not move together with the shaft 41 because of being abutted and clamped by the second extension 12, thereby disengaging the bearing 42 from the shaft 41 and completing the bearing dismounting process.

The bearing dismounting device disclosed by the utility model is convenient for dismounting bearings with different specifications and different mounting positions, can adapt to the requirements of various production occasions, is flexible and convenient to use, and improves the dismounting efficiency and the use experience.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, but not for limiting the same, and only reference is made to the preferred embodiments for illustrating the present utility model, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted, and all the modifications and substitutions are included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. A bearing dismounting device, characterized by being used for dismounting a bearing mounted on a shaft;

2. The bearing dismounting apparatus according to claim 1, wherein the pull claw includes a first extending portion and a second extending portion, the plurality of first mounting holes being uniformly distributed on the first extending portion along an extending direction of the first extending portion;

3. The bearing removal apparatus of claim 2, wherein the first predetermined angle is 90 ° and the pull tab is L-shaped.

4. A bearing removal apparatus as claimed in claim 3, wherein the second extension includes a first face facing the support and perpendicular to the first extension, the first face being planar and adapted to abut a side wall of the bearing.

5. A bearing removal apparatus as claimed in claim 3, wherein the second extension includes a second face on a side of the second extension remote from the first end, the second face being an arcuate face for abutment with the shaft.

6. The bearing removal apparatus of claim 4, wherein the second extension further comprises a third face disposed opposite the first face, the third face being a beveled surface.

7. The bearing removal apparatus of claim 1, further comprising a cylinder head and a cylinder base, said cylinder base being secured to said support member, said cylinder head and said cylinder base being disposed in correspondence, said cylinder being disposed between said cylinder head and said cylinder base.

8. The bearing removal apparatus of claim 7, wherein a plurality of limiting members are disposed between the cylinder head base and the cylinder base to limit and protect the cylinder.

9. The bearing removal apparatus of claim 1, further comprising a bumper, wherein a piston end of the cylinder is connected to the bumper, wherein the bumper abuts an end of the shaft.

10. The bearing removal apparatus of claim 2, wherein a side portion of the support member defines a mounting slot, the first end portion being received in the mounting slot;