CN112659050A - Bearing dismounting tool - Google Patents
Bearing dismounting tool Download PDFInfo
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- CN112659050A CN112659050A CN202011588961.0A CN202011588961A CN112659050A CN 112659050 A CN112659050 A CN 112659050A CN 202011588961 A CN202011588961 A CN 202011588961A CN 112659050 A CN112659050 A CN 112659050A
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- clamping jaw
- guide sleeve
- bearing
- jaw
- wall
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Abstract
The invention provides a bearing disassembling tool which is characterized by comprising a supporting sleeve (1), a guide sleeve (2), a clamping jaw (3), a clamping jaw push rod (4) and a clamping jaw resetting element (5). The bearing dismounting tool enables the bearing to be dismounted simply and conveniently, and the clamping jaw (3) is reset by the clamping jaw resetting element (5), so that the bearing can be separated from the clamping jaw (3) very easily through the movement of the clamping jaw push rod (4).
Description
Technical Field
The invention relates to the field of mechanical parts, in particular to a bearing dismounting tool.
Background
The bearing is one of important parts in mechanical equipment, and is mainly used for supporting the mechanical rotating body, reducing the friction coefficient in the motion process of the mechanical rotating body and ensuring the gyration precision of the mechanical rotating body.
In mechanical equipment, in order to ensure that the bearings can work normally, the bearings need to be maintained and replaced regularly, and therefore the bearings inevitably need to be disassembled. In the prior art, the bearing is usually disassembled by adopting a beating mode, and the beating mode is very easy to damage the bearing outer ring and the retainer thereof, so that the rejection rate of the bearing is high.
Disclosure of Invention
In order to solve the technical problems, the invention provides a bearing dismounting tool which can be used for conveniently dismounting a bearing.
A bearing disassembling tool comprises a supporting sleeve (1), a guide sleeve (2), a clamping jaw (3), a clamping jaw push rod (4) and a clamping jaw reset element (5), wherein the guide sleeve (2) is sleeved in the supporting sleeve (1) and can move along the axial direction of the supporting sleeve (1) relative to the supporting sleeve; a plurality of grooves are formed in the second end portion of the guide sleeve (2) along the circumferential direction, a clamping jaw (3) is embedded into each groove, and a chamfer is formed in the edge of the outer wall of the tail end of each clamping jaw (3); the first end part of the clamping jaw push rod (4) extends into the guide sleeve (2) and abuts against the inner wall of the clamping jaw (3), and under the extrusion of the clamping jaw push rod (4), the chamfer of the clamping jaw (3) is opened towards the radial direction of the guide sleeve (2) and extends into the space between the end part of the bearing to be disassembled and the bearing end cover; one end of the clamping jaw resetting element (5) is installed on the clamping jaw (3), and the other end of the clamping jaw resetting element is elastically abutted to the inner wall of the supporting sleeve (1) and used for providing acting force along the radial direction of the guide sleeve (2) for the clamping jaw (3).
In one embodiment, the jaw return element (5) is a spring plate which is fixed to the outer wall of the jaw (3) by means of a screw (6).
In one embodiment, the thickness of the clamping jaw (3) close to the first end of the guide sleeve (2) is smaller than that of the tail end of the clamping jaw (3), and the inner wall of the clamping jaw is inclined towards the direction of the axis of the guide sleeve (2).
In one embodiment, the groove is the same shape as the clamping jaw (3), and the end of the clamping jaw (3) is flush with the second end of the guide sleeve (2).
In one embodiment, the first end of the clamping jaw push rod (4) is a cylindrical table, the section of the cylindrical table in the direction away from the clamping jaw push rod (4) is gradually reduced, and the outer wall of the cylindrical table abuts against the inner wall of the clamping jaw (3).
In one embodiment, the second end of the clamping jaw push rod (4) is a spiral push rod, and the spiral push rod is in threaded connection with the guide sleeve (2).
In one embodiment, the top of the helical push rod is provided with a rocker (7).
In one embodiment, a screw nut (8) is arranged outside the first end of the guide sleeve (2), and the guide sleeve (2) can be driven to move along the axial direction of the guide sleeve (2) by rotating the screw nut (8).
In one embodiment, a screw (9) is provided on the feed screw nut (8), the screw (9) providing a torque to the feed screw nut (8).
In one embodiment, the outer wall of the guide sleeve (2) is provided with a limiting notch (10) along the axial direction of the guide sleeve, and the guide sleeve (2) is limited in the circumferential direction through a screw (11) fixed on the supporting sleeve (1).
Has the advantages that: the bearing dismounting tool provided by the invention enables the bearing to be dismounted simply and conveniently, and the clamping jaw is reset by the clamping jaw resetting element, so that the bearing can be separated from the clamping jaw very easily through the movement of the clamping jaw push rod.
Drawings
FIG. 1 is a schematic perspective view of a bearing removal tool provided in accordance with an embodiment of the present invention;
FIG. 2 is an exploded view of the bearing removal tool of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the bearing removal tool of FIG. 1 taken along the line A-A;
FIG. 4 is a perspective view of the jaw of FIG. 1 secured to a guide sleeve;
figure 5 is a perspective view of the jaw of figure 1.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, which are provided to illustrate preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and any simple modification, equivalent change and modification of the following embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
In the description of the present application, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
Fig. 1 is a schematic perspective view of a bearing dismounting tool according to an embodiment of the present invention. The bearing disassembling tool comprises a supporting sleeve (1), a guide sleeve (2), a clamping jaw (3) and a clamping jaw push rod (4). The guide sleeve (2) is sleeved in the supporting sleeve (1) and can move along the axial direction of the supporting sleeve (1) relative to the supporting sleeve; a plurality of grooves are formed in the second end portion of the guide sleeve (2) along the circumferential direction, a clamping jaw (3) is embedded into each groove, and a chamfer is formed in the edge of the outer wall of the tail end of each clamping jaw (3); the first end part (42) of the clamping jaw push rod (4) extends into the guide sleeve (2) and abuts against the inner wall of the clamping jaw (3), and under the extrusion of the clamping jaw push rod (4), the chamfer angle of the clamping jaw (3) is opened to the radial direction of the guide sleeve (2) and extends into the space between the end part of the bearing to be disassembled and the bearing end cover. As shown in fig. 1, the number of the grooves is three, and the grooves are uniformly distributed in the circumferential direction of the second end portion, but the number of the grooves in the bearing dismounting tool may also be two, four or more.
As shown in fig. 2 to 5, fig. 2 is an exploded view of the bearing removal tool of fig. 1; FIG. 3 is a schematic cross-sectional view of the bearing removal tool of FIG. 1 taken along the line A-A; FIG. 4 is a perspective view of the jaw of FIG. 1 secured to a guide sleeve; figure 5 is a perspective view of the jaw of figure 1. One end of the clamping jaw resetting element (5) is arranged on the clamping jaw (3), the other end of the clamping jaw resetting element is elastically abutted against the inner wall of the supporting sleeve (1), and the clamping jaw resetting element (5) is used for providing acting force to the clamping jaw (3) along the radial direction of the guide sleeve (2).
The clamping jaw (3) is movably arranged in the groove, namely the clamping jaw (3) can slide in the groove along the radial direction of the guide sleeve (2). Under the thrust effect of clamping jaw push rod (4), when clamping jaw push rod (4) move down, its first end (42) can extrude the inner wall rather than the clamping jaw (3) of butt, and the extrusion force increases gradually to make clamping jaw (3) whole outwards open, thereby make the part that contains the chamfer also outwards open, the chamfer of clamping jaw (3) can accomplish the process of inserting between the bearing end portion of treating dismantling and the bearing end cover promptly. The chamfer edge thickness of the clamping jaw (3) is smaller than the distance between the bearing end and the bearing end cover, generally speaking, the larger the distance between the bearing end and the bearing end cover, the more the insertion of the chamfer is facilitated, and the design of the chamfer thickness is thicker.
After the bearing is separated from the end cover, the guide sleeve (2) moves upwards relative to the supporting sleeve (1), so that the clamping jaw (3) can be driven to move upwards to take out the bearing. After the bearing is taken out, under the elastic force of the clamping jaw resetting element (5), the clamping jaw (3) always receives the acting force opposite to the opening direction of the clamping jaw (3), and the acting force can be used for resetting the clamping jaw (3). Namely, when the clamping jaw push rod (4) moves upwards relative to the guide sleeve (2), the squeezing action of the clamping jaw push rod (4) on the inner wall of the clamping jaw (3) is reduced, the other end of the clamping jaw (3) still elastically abuts against the inner wall of the supporting sleeve (1), so that the clamping jaw (3) is driven to reset, and after the clamping jaw (3) contracts towards the direction opposite to the opening direction of the clamping jaw, the chamfer of the clamping jaw (3) contracts out from the end part of the bearing, so that the bearing is taken out from the clamping jaw (3).
The bearing dismounting tool provided by the invention has the advantages that the bearing is simply and conveniently dismounted, and the bearing can be very easily separated from the clamping jaw (3) through the movement of the clamping jaw push rod (4).
The jaw return member (5) may be a leaf spring, and the invention will be described with the jaw return member being a leaf spring, for example: as shown in fig. 2, one end of the spring plate is fixed to the outer wall of the jaw (3) by a screw (6) so that the convex portion of the spring plate abuts against the inner wall of the support sleeve (1). In the expanding process of the clamping jaw (3), the spring piece is always abutted against the inner wall of the supporting sleeve (1), so that the expanding angle of the clamping jaw (3) can be further controlled by moving the clamping jaw push rod (4) up and down, and the control is accurate.
As shown in fig. 5, the inner wall of the clamping jaw is inclined towards the axis of the guide sleeve (2), namely the thickness of the clamping jaw (3) close to the first end (21) of the guide sleeve (2) is smaller than that of the tail end of the clamping jaw (3), and the side surface of the clamping jaw (3) is similar to a trapezoid, so that the clamping jaw (3) can be squeezed by the clamping jaw push rod (4) from the inside of the guide sleeve (2). And the outer wall of the clamping jaw (3) can be basically flush with the outer wall of the guide sleeve (2), so that the guide sleeve (2) is conveniently sleeved in the supporting sleeve (1), and the clamping jaw (3) is not easily damaged due to external collision.
The groove of the guide sleeve (2) and the clamping jaw (3) are the same in shape, namely the groove and the clamping jaw can be matched with each other in space, the clamping jaw (3) is fixed in the circumferential direction of the guide sleeve (2) and moves in the groove along the radial direction of the guide sleeve (2), the tail end of the clamping jaw (3) is basically flush with the lowest end of the second end portion (22) of the guide sleeve (2), and the clamping jaw (3) is sleeved in the groove and is extruded by the clamping jaw push rod (4) to expand outwards integrally. In addition, when the end part of the clamping jaw (3) extends out of the supporting sleeve (1), the clamping jaw (3) is easily damaged by external collision, such as breakage and the like, so that the whole bearing disassembling tool cannot be used, therefore, the clamping jaw (3) is arranged in the groove of the second end part (22) of the guide sleeve (2), the probability of damage to the clamping jaw (3) caused by external collision can be effectively reduced, and the service life of the tool is prolonged.
The first end part (42) of the clamping jaw push rod (4) is a cylindrical table, the section of the first end part (42) of the clamping jaw push rod in the direction away from the clamping jaw push rod (4) is reduced, the outer wall of the first end part (42) abuts against the inner wall of the clamping jaw (3), and when the clamping jaw push rod (4) moves downwards, the first end part (42) can slowly extrude the inner wall of the clamping jaw (3), so that the contact area between the clamping jaw push rod (4) and the inner wall of the clamping jaw (3) is larger, and the stress is more uniform. The second end part (41) of the clamping jaw push rod (4) is a spiral push rod, the spiral push rod is in threaded connection with the guide sleeve (2), and a rocker (7) is arranged at the top end of the spiral push rod. When the rocker (7) is rotated, the spiral push rod can be driven to rotate, so that the up-and-down movement of the clamping jaw push rod (4) is converted. It can be understood that the mode of moving the clamping jaw push rod (4) up and down is not limited to the mode of using the spiral push rod explained in the invention, and other pushing modes can be adopted, and exemplarily, a sliding rail connection is adopted between the clamping jaw push rod (4) and the guide sleeve (2).
The first end (21) of the guide sleeve (2) is externally provided with a screw nut (8), and the guide sleeve (2) can be driven to move along the axial direction of the guide sleeve (2) by rotating the screw nut (8). When the guide sleeve (2) moves up and down along the axial direction, the clamping jaw (3) can be driven to move up and down, so that the bearing is separated from the end cover and taken out, and the process of separating and taking out the bearing from the end cover is as described above, and is not described again here.
Further, in order to facilitate the rotation of the feed screw nut (8), the feed screw nut (8) is further provided with a screw (9), and a plurality of screws (9) can be symmetrically arranged on the periphery of the feed screw nut (8) to provide torque for the feed screw nut (8), so that the feed screw nut (8) can be driven to rotate conveniently.
In addition, a limiting notch (10) is arranged on the outer wall of the guide sleeve (2) along the axial direction of the guide sleeve, and the guide sleeve (2) is limited in the circumferential direction through a screw (11) fixed on the supporting sleeve (1). The limiting notch (10) has a certain length in the axial direction of the guide sleeve (2), when the screw (11) is inserted into the limiting notch (10), the guide sleeve (2) can be limited to move on the length, the limiting notch (10) is very narrow in the circumferential direction of the guide sleeve (2), the guide sleeve (2) can be prevented from rotating in the circumferential direction through the screw (11), and therefore circumferential limiting is achieved.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the present application have been illustrated and described in detail herein, many other variations and modifications consistent with the principles of the application may be ascertained or derived directly from the disclosure herein without departing from the spirit and scope of the application. Accordingly, the scope of the present application should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A bearing disassembling tool is characterized by comprising a bearing sleeve (1), a guide sleeve (2), a clamping jaw (3), a clamping jaw push rod (4) and a clamping jaw reset element (5), wherein,
the guide sleeve (2) is sleeved in the supporting sleeve (1) and can move along the axial direction of the supporting sleeve (1) relative to the supporting sleeve;
a plurality of grooves are formed in the second end portion of the guide sleeve (2) along the circumferential direction, a clamping jaw (3) is embedded into each groove, and a chamfer is formed in the edge of the outer wall of the tail end of each clamping jaw (3);
the first end part of the clamping jaw push rod (4) extends into the guide sleeve (2) and abuts against the inner wall of the clamping jaw (3), and under the extrusion of the clamping jaw push rod (4), the chamfer of the clamping jaw (3) is opened towards the radial direction of the guide sleeve (2) and extends into the space between the end part of the bearing to be disassembled and the bearing end cover;
one end of the clamping jaw resetting element (5) is installed on the clamping jaw (3), and the other end of the clamping jaw resetting element is elastically abutted to the inner wall of the supporting sleeve (1) and used for providing acting force along the radial direction of the guide sleeve (2) for the clamping jaw (3).
2. Bearing removal tool according to claim 1, characterized in that the jaw return element (5) is a leaf spring which is fixed to the outer wall of the jaw (3) by means of a screw (6).
3. Bearing removal tool according to claim 1, characterized in that the thickness of the first end of the clamping jaw (3) close to the guide sleeve (2) is smaller than the thickness of the tip of the clamping jaw (3), the inner wall of which is inclined towards the axis of the guide sleeve (2).
4. Bearing removal tool according to claim 1, characterized in that the groove has the same shape as the jaw (3), the tip of the jaw (3) being flush with the second end of the guide sleeve (2).
5. Bearing removal tool according to claim 1, characterized in that the first end of the jaw pusher (4) is a cylindrical table with a gradually decreasing cross-section in the direction away from the jaw pusher (4), the outer wall of the table abutting against the inner wall of the jaw (3).
6. Bearing removal tool according to claim 1, characterized in that the second end of the jaw pusher (4) is a screw pusher, which is screwed to the guide sleeve (2).
7. Bearing removal tool according to claim 6, characterized in that the top of the helical push rod is provided with a rocker (7).
8. Bearing removal tool according to claim 1, characterized in that the guide sleeve (2) is provided with a lead screw nut (8) on the outside at the first end, and by rotating the lead screw nut (8) the guide sleeve (2) can be driven to move in the axial direction of the guide sleeve (2).
9. Bearing removal tool according to claim 8, characterized in that a screw (9) is provided on the spindle nut (8), which screw (9) provides a torque to the spindle nut (8).
10. Bearing removal tool according to claim 1, characterized in that the guide sleeve (2) is provided on its outer wall with a stop notch (10) along its axial direction, the guide sleeve (2) being circumferentially stopped by means of a screw (11) fixed to the support sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588961.0A CN112659050A (en) | 2020-12-29 | 2020-12-29 | Bearing dismounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588961.0A CN112659050A (en) | 2020-12-29 | 2020-12-29 | Bearing dismounting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112659050A true CN112659050A (en) | 2021-04-16 |
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ID=75411706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011588961.0A Pending CN112659050A (en) | 2020-12-29 | 2020-12-29 | Bearing dismounting tool |
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| Country | Link |
|---|---|
| CN (1) | CN112659050A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161733A (en) * | 2023-11-02 | 2023-12-05 | 南通沃特力机械制造有限公司 | Thrust bearing press-fitting equipment for water pump |
-
2020
- 2020-12-29 CN CN202011588961.0A patent/CN112659050A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161733A (en) * | 2023-11-02 | 2023-12-05 | 南通沃特力机械制造有限公司 | Thrust bearing press-fitting equipment for water pump |
| CN117161733B (en) * | 2023-11-02 | 2023-12-26 | 南通沃特力机械制造有限公司 | Thrust bearing press-fitting equipment for water pump |
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