CN210361147U

CN210361147U - Bearing disassembling tool

Info

Publication number: CN210361147U
Application number: CN201920621361.6U
Authority: CN
Inventors: 潘博; 黄翔; 李毅斌; 雷斌
Original assignee: Chongqing Qingling Foundry Co ltd; Qingling Motors Group Co Ltd
Current assignee: Chongqing Qingling Foundry Co ltd; Qingling Motors Group Co Ltd; Chongqing Qingling Casting Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-04-21
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a bearing disassembling tool, which comprises a tool main body, a bearing limiting structure used for limiting the position of the bearing and an ejector piece used for ejecting an installation shaft out of the bearing, wherein the tool main body is a hollow body provided with a hollow area, a guide threaded hole is arranged on the tool main body, and the bearing limiting structure is provided with a limiting surface used for limiting the end surface position of the bearing and a yielding limiting groove used for installing the installation shaft and limiting the radial position of the installation shaft; when the bearing is detached, the bearing is located in the hollow area, one end face of the bearing is abutted against the limiting face, the installation shaft is located in the yielding limiting groove, and the ejecting piece is abutted against the end face of the installation shaft to drive the installation shaft to move in the direction away from the guide threaded hole in the axial direction. The utility model discloses a frock is dismantled to bearing only needs to rotate during the dismantlement and just can realize the dismouting of bearing to the liftout piece, and also can realize the bearing dismouting when the external diameter of shaft shoulder diameter and bearing inner circle is close, has reduced the dismantlement degree of difficulty.

Description

Bearing disassembling tool

Technical Field

The utility model relates to a tooling equipment especially relates to a frock is dismantled to bearing.

Background

In mechanical equipment, a bearing is used for supporting and mounting a shaft part, and the bearing and the shaft part are often mounted in an interference fit manner. At present, the method for detaching the bearing from the shaft part includes the modes of directly knocking the bearing, heating or hooking the bearing outwards by using a three-jaw puller and the like.

When the bearing is disassembled by using a knocking method, if the interference magnitude is large, the bearing is difficult to knock out directly, and even the risk of damaging the bearing exists.

When the bearing is disassembled in a heating mode, the heating temperature needs to be calculated according to different inner diameters, different materials and different interference, and the bearing roller is easily burnt out due to overhigh interference temperature.

When the three-jaw puller is used for hooking and disassembling the bearing, the three-jaw puller can only hook an outer ring or an inner ring of the bearing, axial force needs to be transmitted from the outer ring to the inner ring through a rolling body or from the inner ring to the outer ring through the rolling body, but the types of the bearing are various, some thrust bearings can bear larger axial force, but the axial force which can be borne by rollers of a plurality of radial bearings is limited, if the three-jaw puller is adopted for disassembling, the bearing is easy to damage, such as the rolling body falls off, the inner ring and the outer ring are separated, and when the diameter of a shaft shoulder is close to the outer diameter of the inner ring of the bearing, the hook head of the three-jaw puller cannot disassemble the inner ring of the bearing due to the fact that.

Disclosure of Invention

The utility model discloses a main aim at provides a frock is dismantled to bearing, reduces the bearing and dismantles the degree of difficulty.

In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:

the utility model provides a frock is dismantled to bearing, treats that the bearing of dismantling is installed on the installation axle, includes: the tool comprises a tool main body, a bearing limiting structure used for limiting the position of the bearing and an ejector piece used for ejecting the mounting shaft out of the bearing.

The tool comprises a tool main body, a hollow body and a bearing limiting structure, wherein the tool main body is a hollow body, a guide threaded hole is formed in the tool main body, the ejector piece is matched and penetrates through the guide threaded hole and stretches into the hollow body, the bearing limiting structure is arranged on the tool main body, the bearing limiting structure is arranged opposite to the guide threaded hole, the bearing limiting structure is provided with a limiting face for limiting the end face position of the bearing and a limiting groove for installing the shaft and limiting the radial position of the installation shaft.

During the dismantlement, the bearing is located in the hollow area, a terminal surface of bearing supports and leans on the spacing face, the installation axle is located the spacing inslot of stepping down, just the ejecting piece supports tightly orders about on the terminal surface of installation axle the installation axial is kept away from the direction of direction screw hole removes.

Optionally, the spacing groove of stepping down has the restriction install the spacing district of axle radial position with be used for with the installation axle is packed into the spacing district of stepping down that dodges when being distinguished, spacing district with the coaxial setting of direction screw hole, the installation axle is located when dismantling spacing district is interior.

Optionally, the bearing limiting structure is arranged on a limiting part, a limiting part mounting hole is formed in the tool main body, the limiting part is detachably arranged in the limiting part mounting hole, and the bearing abuts against an end face of the limiting part when detached.

Optionally, the yielding limiting groove is a U-shaped groove, and the yielding area of the yielding limiting groove extends to the edge of the limiting part, so that the yielding limiting groove is formed in the limiting part to form a first opening.

Optionally, the outer contour of the limiting member mounting hole is larger than the outer diameter contour of the bearing, and an operation opening for placing the limiting member into the hollow area is formed in the tool main body.

Optionally, the limiting part mounting hole is also a U-shaped groove, the U-shaped groove extends to the edge of the tool main body, so that the limiting part mounting hole is in a second opening formed in the tool main body, and the tool main body is provided with a dodging opening for placing the limiting part into the hollow area from one side where the second opening is located.

Optionally, the locating part include the cooperation portion with the integrative screens portion that sets up of cooperation portion, the cooperation portion with form the ladder face between the screens portion, the cooperation portion with clearance fit between the locating part mounting hole, the ladder face supports under the impetus of bearing and leans on a medial surface of frock main part.

Optionally, the tool main body comprises a first channel steel, a second channel steel and a connecting piece used for connecting the first channel steel and the second channel steel, the opening of the first channel steel faces the opening of the second channel steel, the bearing limiting structure is arranged on the first channel steel, the guide threaded hole is formed in the second channel steel, the connecting piece is a plate, and the connecting piece is symmetrically arranged to form a through square frame body.

Optionally, a guide nut is arranged on the tool main body, and the ejection piece is arranged in the guide nut in a penetrating mode in a matching mode.

Optionally, the ejection part comprises an ejector rod and a force application head, the ejector rod is provided with an external thread matched with the guide threaded hole, and the end of the ejector rod is provided with a tip used for being abutted against the central hole of the mounting shaft.

The utility model discloses following beneficial effect has at least:

the utility model discloses a frock is dismantled to bearing only needs to rotate during the dismantlement and just can realize the dismouting of bearing to the liftout piece, and also can realize the bearing dismouting when the external diameter of shaft shoulder diameter and bearing inner circle is close, has reduced the dismantlement degree of difficulty.

Drawings

Fig. 1 is a schematic structural view of the bearing disassembling tool of the present invention when disassembling a bearing;

FIG. 2 is a schematic cross-sectional view of the device shown in FIG. 1, taken along line C-C, in accordance with one embodiment;

fig. 3 is a schematic cross-sectional view of fig. 1 in a C-C section according to another embodiment.

Description of reference numerals in the examples: the tool comprises a mounting shaft A, a bearing B, a tool main body 1, a limiting part 2, an ejector part 3, a first channel steel 11, a second channel steel 12, a connecting piece 13, a guide nut 14, a matching part 21, a clamping part 22, an ejector rod 31, a force application head 32, a hollow area 101, a guide threaded hole 102, a limiting part mounting hole 103, a limiting surface 201, a yielding limiting groove 202, a limiting area 202a, a yielding area 202B and a stepped surface 203.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

It is to be understood that the present invention may 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, and will fully convey the scope of the invention to those skilled in the art. In the drawings, like reference numerals refer to like elements throughout.

The utility model discloses a frock is dismantled to bearing for pull down bearing B from installation axle A.

Referring to fig. 1, the bearing disassembling tool of the embodiment includes a tool main body 1, a bearing limiting structure and an ejector 3, the bearing limiting structure is used for limiting the position of a bearing B, and the ejector 3 is used for ejecting a mounting shaft a from the bearing B.

The tool body 1 is a hollow body, the tool body 1 is provided with a hollow area 101, and the tool body 1 is provided with a guide threaded hole 102.

Wherein the ejector 3 is fitted through the guiding threaded hole 102 and protrudes into the hollow area 101.

The tool body 1 is provided with a guide threaded hole 102, a bearing limiting structure and a bearing positioning structure, wherein the bearing limiting structure is arranged on the tool body 1 and is arranged opposite to the guide threaded hole 102, and the bearing limiting structure is provided with a limiting surface 201 for limiting the end surface position of a bearing B and a yielding limiting groove 202 for installing the mounting shaft A and limiting the radial position of the mounting shaft A;

during the dismantlement, bearing B is located in the hollow region 101, bearing B's a terminal surface supports and leans on spacing face 201, installation axle A is located in the spacing groove 202 of stepping down, just ejecting 3 supports tightly is in order to drive installation axle A on installation axle A's the terminal surface and remove to the direction of keeping away from guide screw hole 102.

Before disassembly, the installation shaft A provided with the bearing B needs to be installed on the disassembly tool, during installation, the bearing B needs to enter the hollow area 101, the installation shaft A is placed in the abdicating limiting groove 202 and is coaxial with the ejector 3, then the ejector 3 is rotated by adjustment, the ejector 3 is ejected on the end face of the installation shaft A, the bearing B moves towards the direction of the principle guide threaded hole 102 along with the installation shaft A under the acting force of the ejector 3, and the installation is completed until the end face of the bearing B abuts against the limiting face 201; after the installation is completed, when the bearing B is disassembled, the rotating ejection piece 3 is continuously adjusted, so that the ejection piece 3 continuously moves towards the direction of the installation shaft A, the installation shaft A is driven to move towards the direction far away from the guide threaded hole 102, and the disassembly is completed until the installation shaft A is separated from the bearing B.

The bearing of this embodiment is dismantled the frock and when dismantling, and the ejecting force of ejector member 3 is used in the terminal surface of installation axle A, and no matter how position relation between shaft shoulder and the bearing inner race, bearing B's terminal surface and spacing face 201 homoenergetic contact, area of contact is big, and it is convenient to dismantle.

In some embodiments, referring to fig. 1, 2 and 3, the abdicating limiting groove 202 has a limiting area 202a for limiting the radial position of the mounting shaft a and an abdicating area 202b for abdicating the mounting shaft a when the mounting shaft a is mounted in the limiting area 202a, wherein the limiting area 202a is coaxial with the guiding threaded hole 102, and the mounting shaft is located in the limiting area 202a when dismounted.

In practical implementation, referring to fig. 1 and 3, the relief area 202b may be set large enough to allow the bearing to enter the hollow area 101 through the relief area 202 b; or, referring to fig. 1 and 2, other yielding openings are provided at other positions of the tool main body 1, so that the bearing enters the hollow area 101 through the yielding openings, and the mounting shaft still enters the limiting area 202a through the yielding area 202 b.

In some embodiments, referring to fig. 1, the bearing limiting structure is disposed on a limiting member 2, a limiting member mounting hole 103 is disposed on the tool main body 1, the limiting member 2 is detachably disposed in the limiting member mounting hole 103, and the bearing B abuts against an end surface of the limiting member 2 when detached. When the limiting part 2 can be disassembled, the limiting part 2 with the abdicating limiting groove 202 in different sizes can be replaced according to the size of the disassembled bearing B and the installation shaft A, so that the whole disassembling tool can be wider in application range, and the disassembling cost can be reduced.

In some embodiments, referring to fig. 1 and fig. 2, the yielding limiting groove 202 of the limiting member 2 is a U-shaped groove, and the yielding region 202b of the yielding limiting groove 202 extends to the edge of the limiting member 2, so that the yielding limiting groove 202 forms a first opening on the limiting member 2. Because the limiting member 2 is detachable, when the mounting shaft a with the bearing B is mounted, the mounting shaft a can directly enter the innermost side of the U-shaped groove through the opening, that is, the limiting region 202 a.

In some embodiments, referring to fig. 1 and 3, the outer profile of the retainer mounting hole 103 is larger than the outer diameter profile of the bearing B, so that the bearing B can directly enter the hollow region 101 through the retainer mounting hole 103. Before disassembly, the mounting shaft a is held first, so that the bearing B directly enters the hollow area 101 through the limiting member mounting hole 103, and the mounting shaft a is moved to be directly embedded into the yielding limiting groove 202, when the limiting member 2 is arranged, an operation hole can be arranged on the tool main body 1, so that the limiting member 2 is sent into the hollow area 101 through the operation hole, and the mounting shaft a is embedded into the yielding limiting groove 202 through the first opening. In other embodiments, referring to fig. 1 and 2, the limiting member mounting hole 103 is also a U-shaped groove, the U-shaped groove extends to the edge of the tool main body 1, so that the limiting member mounting hole 103 forms a second opening on the tool main body 1, an avoiding opening for placing the limiting member 2 into the hollow region 101 from one side of the second opening is provided on the tool main body 1, and the limiting member mounting hole 103 is communicated with the avoiding opening. Before the dismantlement, can pull down the back with locating part 2 from frock main part 1 earlier, directly through the spacing groove 202 card of stepping down on installation axle A to on bearing B, holding installation axle A under the dead weight effect, make locating part 2 directly get into locating part mounting hole 103 through the second opening, bearing B gets into simultaneously through dodging the mouth and dodges the space, and it is more convenient to operate.

In some embodiments, referring to fig. 1, the limiting member 2 includes a matching portion 21 and a clamping portion 22 integrally disposed on the matching portion 21, a stepped surface 203 is formed between the matching portion 21 and the clamping portion 22, the matching portion 21 and the limiting member mounting hole 103 are in clearance fit, the stepped surface 203 abuts against an inner side surface of the tool main body 1 under the pushing action of a bearing, and in this manner, the limiting member 2 is directly positioned by the ejector 3 without a bolt or other positioning mechanism requiring additional operation, which is convenient to operate.

In some embodiments, referring to fig. 1 and 2, the tool main body 1 is a frame-shaped structure with two through sides, and the openings on the two sides of the frame-shaped structure can be the operation opening and the avoidance opening, so that when the tool main body 1 is the frame-shaped structure, the self weight of the whole tool can be reduced, and the disassembly process can be observed conveniently.

In some embodiments, referring to fig. 1, the tool main body 1 includes a first channel steel 11, a second channel steel 12 and a connector 13 for connecting the first channel steel 11 and the second channel steel 12, an opening of the first channel steel 11 faces an opening of the second channel steel 12, the bearing limiting structure is disposed on the first channel steel 11, the guide threaded hole 102 is disposed on the second channel steel 12, the connector 13 is a plate, and the connector 13 is symmetrically arranged, so that the tool main body 1 forms a through square frame body, and the whole tool main body 1 is processed by using profile channel steel, which is beneficial to reducing cost.

In some embodiments, referring to fig. 1, a guide nut 14 is disposed on the tool main body 1, and the ejector 3 is fittingly inserted into the guide nut 14.

In some embodiments, referring to fig. 1, the ejector 3 includes an ejector rod 31 and a force application head 32, the ejector rod 31 is provided with an external thread matching with the guide threaded hole 102, and an end of the ejector rod 31 is provided with a center point for abutting against the central hole of the mounting shaft.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not being in direct contact, but rather being in contact with each other via additional features between them.

In the description of the invention, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, components, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, and/or groups thereof.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a frock is dismantled to bearing, treats that the bearing of dismantling is installed on the installation axle, a serial communication port, include:

the tool comprises a tool main body, a bearing limiting structure and an ejector piece, wherein the bearing limiting structure is used for limiting the position of a bearing, the ejector piece is used for ejecting the mounting shaft out of the bearing, the tool main body is a hollow body provided with a hollow area, a guide threaded hole is formed in the tool main body, the ejector piece penetrates through the guide threaded hole in a matched mode and extends into the hollow area, the bearing limiting structure is arranged on the tool main body and is arranged opposite to the guide threaded hole, and the bearing limiting structure is provided with a limiting surface used for limiting the end face position of the bearing and a abdicating limiting groove used for installing the mounting shaft and limiting the radial position of the mounting shaft;

2. The bearing disassembly tool of claim 1, wherein: the yielding limiting groove is provided with a limiting area for limiting the radial position of the installation shaft and a yielding area for avoiding the installation shaft when the installation shaft is installed in the limiting area, the limiting area is coaxial with the guide threaded hole, and the installation shaft is located in the limiting area when being detached.

3. The bearing disassembly tool of claim 2, wherein: the bearing limiting structure is arranged on a limiting part, a limiting part mounting hole is formed in the tool main body, the limiting part is detachably arranged in the limiting part mounting hole, and the bearing is abutted against one end face of the limiting part when detached.

4. The bearing disassembly tool of claim 3, wherein: the yielding limiting groove is a U-shaped groove, and a yielding area of the yielding limiting groove extends to the edge of the limiting part, so that the yielding limiting groove is formed in the limiting part to form a first opening.

5. The bearing disassembly tool of claim 4, wherein: the outer contour of the limiting piece mounting hole is larger than the outer diameter contour of the bearing.

6. The bearing disassembly tool of claim 4, wherein: the locating part mounting hole also is U type groove, U type groove extends to the edge of frock main part makes the locating part mounting hole is in form the second opening in the frock main part, be provided with on the frock main part be used for with the locating part is followed one side at second opening place is put into hollow region's the mouth of dodging.

7. The bearing disassembly tool of claim 3, wherein: the locating part include cooperation portion with the integrative screens portion that sets up of cooperation portion, cooperation portion with form the ladder face between the screens portion, cooperation portion with clearance fit between the locating part mounting hole, the ladder face supports under the impetus of bearing and leans on a medial surface of frock main part.

8. The bearing disassembly tool of claim 7, wherein: the tool main body comprises a first channel steel, a second channel steel and a connecting piece used for connecting the first channel steel and the second channel steel, the opening of the first channel steel faces the opening of the second channel steel, a bearing limiting structure is arranged on the first channel steel, a guide threaded hole is formed in the second channel steel, the connecting piece is a plate, and the connecting piece is symmetrically arranged to form a four-direction frame body which is through.

9. The bearing disassembly tool of claim 1, wherein: the tool main body is provided with a guide nut, and the ejection piece is arranged in the guide nut in a penetrating mode in a matching mode.

10. The bearing disassembly tool of claim 1, wherein: the ejection part comprises an ejector rod and a force application head, wherein the ejector rod is provided with an external thread matched with the guide threaded hole, and the end part of the ejector rod is provided with a tip used for being abutted in a central hole of the mounting shaft.