Self-aligning ball bearing dismounting tool

Abstract

The utility model discloses a self-aligning ball bearing dismounting tool which comprises a push plate and a wing plate, the push plate comprises a main body part and a protruding part, the main body part is provided with a first through hole for a bearing to pass through, the protruding part is provided with a semicircular hole, the semicircular hole is communicated with the first through hole, and the first through hole is communicated with the wing plate. The rotating shaft can enter the semicircular hole from the first through hole, the wing plate is rotationally connected to the main body part, one side of the wing plate is in sliding contact with the main body part, the other side of the wing plate is flush with the protruding part, a semicircular groove is formed in the wing plate, and when the wing plate abuts against the protruding part, the semicircular groove is matched with the semicircular hole. The semicircular groove and the semicircular hole form a complete circular hole, and the diameter of the complete circular hole is larger than that of the rotating shaft and smaller than that of the bearing. According to the disassembling tool for the self-aligning ball bearing, the self-aligning ball bearing is pushed through cooperation of the push plate and the wing plate, the self-aligning ball bearing can be stably pushed down from the rotating shaft, and the self-aligning ball bearing is stable in stress and not prone to damage during disassembling.

Description

Technical Field

[0001] The utility model relates to the field of disassembly tools, and particularly relates to a disassembly tool for a self-aligning ball bearing. Background Art

[0002] A self-aligning ball bearing is a bearing in which spherical self-aligning balls are assembled between the inner ring with two raceways and the outer ring with spherical raceways. The center of curvature of the outer ring raceway surface coincides with the bearing center, so it has the same self-aligning function as a self-aligning ball bearing and is widely used in various mechanical equipment.

[0003] When a self-aligning ball bearing is in use, its inner ring and the shaft are usually in an interference fit. When disassembling the bearing from the shaft, the inner and outer rings of the self-aligning ball bearing are relatively deflected, and it is not easy to fix during disassembly, and the self-aligning ball bearing is easily damaged during disassembly, affecting the accuracy and service life of the self-aligning ball bearing. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a disassembly tool for a self-aligning ball bearing. By pushing the self-aligning ball bearing through the cooperation of a push plate and a wing plate, the self-aligning ball bearing can be stably pushed off the shaft, the self-aligning ball bearing is subjected to stable force, and it is not easily damaged during disassembly.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A disassembly tool for a self-aligning ball bearing, used to assist in disassembling the bearing on a rotating shaft, includes a push plate and a wing plate. The push plate includes a main body part and a protruding part. A first through hole for the bearing to pass through is provided on the main body part. A semi-circular hole is provided on the protruding part, and the semi-circular hole communicates with the first through hole. The rotating shaft can enter the semi-circular hole from the first through hole. The wing plate is rotatably connected to the main body part. One side of the wing plate is in sliding contact with the main body part, and the other side is flush with the protruding part. A semi-circular groove is provided on the wing plate. When the wing plate abuts against the protruding part, the semi-circular groove and the semi-circular hole form a complete circular hole, and the diameter of the complete circular hole is larger than the diameter of the rotating shaft and smaller than the diameter of the bearing.

[0007] As a further improvement of the above technical solution, the wing plate is rotatably connected to the main body part through a hinge shaft.

[0008] As a further improvement of the above technical solution, a first threaded hole is provided on the main body part, a hinge hole is provided on the wing plate, the hinge shaft includes a threaded section and a smooth section, the threaded section is threadedly connected to the first threaded hole, and the hinge hole of the wing plate is rotatably sleeved on the smooth section.

[0009] As a further improvement of the above technical solution, the corners of the wing plate at the rotation connection are provided with rounded corners, and the corners of the convex part close to the rotation connection of the wing plate are also provided with rounded corners.

[0010] As a further improvement of the above technical solution, the wing plate includes a first wing plate and a second wing plate. The first wing plate and the second wing plate are respectively rotatably connected to both sides of the main body part, and a first arc-shaped groove and a second arc-shaped groove are respectively provided on the first wing plate and the second wing plate. When the first wing plate and the second wing plate are both rotated to abut against the convex part, the first arc-shaped groove and the second arc-shaped groove form the semi-circular groove.

[0011] As a further improvement of the above technical solution, the disassembly tool further includes a disassembly frame. The disassembly frame includes a support plate and a plurality of support rods arranged on the support plate. One end of the support rod away from the support plate is fixedly connected to the push plate.

[0012] As a further improvement of the above technical solution, the plurality of support rods are evenly distributed around the center of the semi-circular hole on the push plate.

[0013] As a further improvement of the above technical solution, one of the support rods is arranged on the main body part between the first wing plate and the second wing plate, and avoidance openings are respectively provided between the first wing plate and the second wing plate. When the first wing plate and the second wing plate are closed, the support rod is located in the avoidance opening; the remaining support rods are arranged on the convex part.

[0014] As a further improvement of the above technical solution, a second threaded hole is provided on the support plate, and a screw rod is connected in the second threaded hole. The screw rod is coaxial with the semi-circular hole.

[0015] As a further improvement of the above technical solution, a handle is provided at one end of the screw rod away from the support plate.

[0016] The beneficial effects of the present utility model are as follows: When using the disassembly tool of the present utility model, open the wing plate, penetrate through the first through hole on the push plate from the spherical roller bearing on the shaft, and then the shaft enters the semi-circular hole from the first through hole. Close the wing plate, and the complete round hole is in clearance fit with the shaft. Move the disassembly tool, and the convex parts of the wing plate and the push plate abut against the inner side of the spherical roller bearing, giving an outward thrust to the spherical roller bearing, so as to disassemble the spherical roller bearing from the shaft. In the present utility model, the convex parts of the wing plate and the push plate abut against the inner side of the spherical roller bearing, so that the thrust received by the spherical roller bearing is uniform, the force on the spherical roller bearing is stable, and it is not easily damaged during disassembly. Description of the Drawings

[0017] The present utility model will be further described below with reference to the drawings and embodiments.

[0018] Figure 1It is the assembly schematic diagram of the self-aligning ball bearing disassembly tool in the embodiment of the present utility model Figure 1 ;

[0019] Figure 2 It is the assembly schematic diagram of the self-aligning ball bearing disassembly tool in the embodiment of the present utility model Figure 2 ;

[0020] Figure 3 It is the exploded schematic diagram of the self-aligning ball bearing disassembly tool in the embodiment of the present utility model Figure 1 ;

[0021] Figure 4 It is the exploded schematic diagram of the self-aligning ball bearing disassembly tool in the embodiment of the present utility model Figure 2 ;

[0022] Figure 5 It is the bottom view of the self-aligning ball bearing disassembly tool in the embodiment of the present utility model;

[0023] Figure 6 It is the use state of the self-aligning ball bearing disassembly tool in the embodiment of the present utility model Figure 1 ;

[0024] Figure 7 It is the use state of the self-aligning ball bearing disassembly tool in the embodiment of the present utility model Figure 2 。

[0025] Reference numerals: 1, push plate; 11, main body part; 12, first through hole; 13, convex part; 14, semi-circular hole; 15, second arc surface; 2, first wing plate; 21, first arc groove; 22, first arc surface; 3, second wing plate; 31, second arc groove; 4, complete round hole; 5, hinge bolt; 6, support plate; 61, threaded hole; 7, support rod; 8, screw rod;

[0026] 100, shaft; 200, self-aligning ball bearing. Specific embodiments

[0027] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present utility model. In addition, all connection / connection relationships involved in the patent do not refer only to the direct connection of components, but refer to the formation of a more optimal connection structure by adding or reducing connection accessories according to specific implementation situations. For example, fixed connection / installation can be connected by accessories such as screws and bolts, or directly connected by welding, bonding and other methods. Each technical feature in the creation of the present utility model can be interactively combined without conflicting with each other.

[0028] Referring to Figures 1 - 5 , a spherical roller bearing disassembly tool for a preferred embodiment of the present utility model is used to assist in disassembling the spherical roller bearing 200 on the rotating shaft. It includes a push plate 1 and a wing plate. The push plate 1 includes a main body portion 11 and a convex portion 13. A first through hole 12 is provided on the main body portion 11 (for convenience of processing and reducing the opening area, the first through hole 12 is set as a large arc hole, that is, a hole with an area exceeding a semi-circle and less than a whole circle). A semi-circular hole 14 is provided on the convex portion 13. The straight side of the semi-circular hole 14 is communicated with the first through hole 12, so that the first through hole 12 and the semi-circular hole 14 are communicated to form a second through hole provided on the push plate 1. The diameter of the first through hole 12 is larger than the outer diameter of the outer ring of the spherical roller bearing 200, that is, the spherical roller bearing 200 can pass through the first through hole 12. The diameter of the semi-circular hole 14 is larger than the diameter of the rotating shaft 100 and smaller than the outer diameter of the inner ring of the spherical roller bearing 200. Thus, when installing, the disassembly tool can pass through the spherical roller bearing 200 through the first through hole 12, and then the rotating shaft 100 moves into the semi-circular hole 14, and the rotating shaft 100 and the semi-circular hole 14 are in clearance fit. The wing plate is rotatably connected to the main body portion 11. One side of the wing plate is in sliding contact with the main body portion 11, and the other side is flush with the convex portion 13. A semi-circular groove is provided on the wing plate. When the wing plate abuts against the convex portion 13, the semi-circular groove and the semi-circular hole 14 form a complete circular hole 4. When disassembling the spherical roller bearing 200, after the push plate 1 is installed on the rotating shaft 100 and the rotating shaft 100 enters the semi-circular hole 14, the wing plate is rotated until it abuts against the convex portion 13. The rotating shaft 100 is located in the complete circular hole 4 formed by the semi-circular groove and the semi-circular hole 14. Then the push plate 1 is moved outwards, so that the convex portion 13 of the push plate 1 and the wing plate simultaneously abut against the end face of the spherical roller bearing 200, so that the spherical roller bearing 200 is forced to move outwards evenly, thereby stably pulling the spherical roller bearing 200 off the rotating shaft 100, which can greatly reduce the damage rate of the spherical roller bearing 200.

[0029] In this embodiment, the wing plates include a first wing plate 2 and a second wing plate 3. The first wing plate 2 and the second wing plate 3 are respectively rotatably connected to both sides of the main body portion 11. First arc-shaped grooves 21 and second arc-shaped grooves 31 are respectively provided on the first wing plate 2 and the second wing plate 3. When the first wing plate 2 and the second wing plate 3 are both rotated to abut against the convex portion 13, the first arc-shaped groove 21 and the second arc-shaped groove 31 form the semi-circular groove. By the way of rotating two wing plates, problems such as excessive rotation of a single wing plate, inconvenient rotation, and interference between the rotation of the wing plate and the disassembly frame are avoided.

[0030] Furthermore, both the first wing plate 2 and the second wing plate 3 are rotatably connected to the main body portion 11 through a hinge shaft. A first threaded hole is respectively provided on both sides of the main body portion 11. A hinge hole is provided on both the first wing plate 2 and the second wing plate 3. The hinge shaft includes a threaded section and a smooth section. The threaded section is threadedly connected to the first threaded hole. The hinge hole of the wing plate is rotatably sleeved on the smooth section. In addition, a head is provided at one end of the smooth section away from the threaded section, and the diameter of the head is greater than the diameter of the hinge hole, thereby preventing the first wing plate 2 and the second wing plate 3 from moving in the axial direction of the hinge shaft, so as to realize the stable rotation of the first wing plate 2 and the second wing plate 3 on the main body portion 11.

[0031] In a specific embodiment, the hinge shaft can adopt a hinge bolt 5, which is convenient for installation and disassembly.

[0032] In the above embodiment, the corners of the first wing plate 2 and the second wing plate 3 at the rotation connection are all provided with rounded corners to form a first arc-shaped surface 22; the corners of the convex portion 13 near the rotation connection of the first wing plate 2 and the second wing plate 3 are also provided with rounded corners to form a second arc-shaped surface 15. Through the arrangement of the first arc-shaped surface 22 and the second arc-shaped surface 15, interference between the first wing plate 2 and the second wing plate 3 and the side wall of the convex portion 13 during rotation is avoided, and the smoothness of the rotation of the first wing plate 2 and the second wing plate 3 is improved.

[0033] In some embodiments, the disassembly tool further includes a disassembly frame. The disassembly frame includes a support plate 6 and a plurality of support rods 7 provided on the support plate 6. One end of the support rod 7 away from the support plate 6 is fixedly connected to the push plate 1. The plurality of support rods 7 of the disassembly frame are evenly distributed around the center of the semi-circular hole 14 on the push plate 1, thereby improving the structural stability.

[0034] Further, three of the support rods 7 are used to connect the support plate 6 and the push plate 1. One of the support rods 7 is disposed on the main body portion 11 between the first wing plate 2 and the second wing plate 3, and avoidance openings are provided between the first wing plate 2 and the second wing plate 3. When the first wing plate 2 and the second wing plate 3 are closed, the support rod 7 is located in the avoidance opening. The other two support rods 7 are disposed on the convex portion 13, thereby preventing the support rod 7 from interfering with the rotation of the first wing plate 2 and the second wing plate 3.

[0035] In a preferred embodiment, a second threaded hole 61 is provided on the support plate 6. A screw rod 8 is connected in the second threaded hole 61. The screw rod 8 is coaxial with the semi-circular hole 14. By rotating the screw rod 8 to abut against the end of the rotating shaft 100, and continuing to rotate the screw rod 8, the dismounting frame is driven to move outwards under the action of the thread, thereby driving the push plate 1 to move outwards to stably remove the spherical roller bearing 200. Moreover, the removed spherical roller bearing 200 is sleeved on the screw rod 8, thereby preventing the spherical roller bearing 200 from falling to the ground and being damaged.

[0036] A handle (not shown) is provided at one end of the screw rod 8 away from the support plate 6 to operate the rotation of the screw rod 8 through the handle, thereby increasing the convenience of operation.

[0037] When the dismounting tool of the present utility model removes the spherical roller bearing 200 on the rotating shaft 100, referring to Figure 6 and Figure 7 , the first wing plate 2 and the second wing plate 3 are opened. The first through hole 12 on the push plate 1 penetrates through the spherical roller bearing 200 on the rotating shaft 100. Then, the rotating shaft 100 enters the semi-circular hole 14 from the first through hole 12. The first wing plate 2 and the second wing plate 3 are closed, and the screw rod 8 is screwed into the support plate 6 while keeping the dismounting frame from rotating with the screw rod 8. The convex portions 13 of the first wing plate 2, the second wing plate 3 and the push plate 1 abut against the inner side of the spherical roller bearing 200, giving an outward thrust to the spherical roller bearing 200, thereby removing the spherical roller bearing 200 from the rotating shaft 100.

[0038] The above is a specific description of the preferred embodiment of the present utility model. However, the creation of the present utility model is not limited to the above embodiment. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A self-aligning ball bearing removal tool, used to assist in removing the bearing on a rotating shaft, characterized in that: It includes a push plate and a wing plate, the push plate includes a main body and a raised part, the main body is provided with a first through hole for the bearing to pass through, the raised part is provided with a semicircular hole, the semicircular hole is connected with the first through hole, the rotating shaft can enter the semicircular hole from the first through hole, the main body is rotatably connected with the wing plate, one side of the wing plate is in sliding contact with the main body, and the other side is flush with the raised part, the wing plate is provided with a semicircular groove, when the wing plate abuts against the raised part, the semicircular groove and the semicircular hole form a complete circular hole, the diameter of the complete circular hole is larger than the diameter of the rotating shaft and smaller than the diameter of the bearing.

2. A self-aligning ball bearing removal tool according to claim 1, characterized in that: The wing plate is rotatably connected to the main body via a hinge shaft.

3. A self-aligning ball bearing removal tool according to claim 2, characterized in that: The main body is provided with a first threaded hole, the wing plate is provided with a hinge hole, the hinge shaft comprises a threaded section and a smooth section, the threaded section is threadedly connected in the first threaded hole, and the hinge hole of the wing plate is rotatably sleeved on the smooth section.

4. The self-aligning ball bearing removal tool according to claim 1, characterized in that: The corners of the wing plate at the rotational connection are chamfered, and the corners of the raised portion near the rotational connection of the wing plate are also chamfered.

5. A self-aligning ball bearing removal tool according to any one of claims 1 to 4, characterized in that: The wing plate includes a first wing plate and a second wing plate, the first wing plate and the second wing plate are respectively rotatably connected to the two sides of the main body, and the first wing plate and the second wing plate are respectively provided with a first arc groove and a second arc groove, when the first wing plate and the second wing plate are both rotated to abut against the raised portion, the first arc groove and the second arc groove form the semicircular groove.

6. A self-aligning ball bearing removal tool according to claim 5, characterized in that: It also includes a disassembly frame, which includes a support plate and a plurality of support rods arranged on the support plate, and one end of the support rod away from the support plate is fixedly connected to the push plate.

7. A self-aligning ball bearing removal tool according to claim 6, characterized in that: A plurality of support rods are evenly distributed around the push plate with the center of the semicircular hole.

8. The self-aligning ball bearing removal tool according to claim 7, characterized in that: One of the support rods is arranged on the main body between the first wing plate and the second wing plate, and an avoidance opening is arranged between the first wing plate and the second wing plate. When the first wing plate and the second wing plate are closed, the support rod is located in the avoidance opening; the remaining support rods are arranged on the raised portion.

9. The self-aligning ball bearing removal tool according to claim 6, characterized in that: The support plate is provided with a second threaded hole, a screw rod is connected in the second threaded hole, and the screw rod is coaxial with the semicircular hole.

10. The self-aligning ball bearing removal tool according to claim 9, characterized in that: A handle is arranged at one end of the screw rod away from the supporting plate.

Images