Roller dismounting device for cylindrical roller bearing

Abstract

The utility model discloses a roller dismounting device of a cylindrical roller bearing, and relates to the technical field of roller dismounting of cylindrical roller bearings. A bearing outer ring is arranged on the front face of a dismounting seat, a fixed shaft is fixedly connected to the front face of the dismounting seat, a movable disc is arranged on the back face of the dismounting seat, a retainer is arranged in the bearing outer ring, a plurality of rollers are arranged in the retainer, and the sides, away from the bearing outer ring, of the rollers make contact with a bearing inner ring. According to the device, the push disc is arranged, specifically, after a bearing is fixed on the fixed shaft, the second rotating handle is rotated clockwise to drive the second threaded rod to rotate, the movable disc drives the push disc to move forwards through the connecting rod, the outer ring of the bearing is pushed to fall off, a roller is exposed outside, a worker can take out the roller, violent disassembly is avoided, and the working efficiency is improved. And in addition, disassembly is more convenient and faster, the situation of damage is reduced, and the disassembly process is safer.

Description

Technical Field

[0001] The utility model belongs to the technical field of roller removal of cylindrical roller bearings, and particularly relates to a roller removal device for cylindrical roller bearings. Background Technique

[0002] A cylindrical roller bearing is a radial rolling bearing with a large radial load-carrying capacity and a small friction coefficient, and is suitable for fields such as large and medium-sized motors and locomotives. It uses parallelly arranged cylindrical rollers as rolling elements, and a spacer retainer or spacer blocks are used to prevent the rollers from tilting or rubbing against each other.

[0003] When removing the rollers of the existing cylindrical roller bearings, workers usually use tools to disassemble them by hitting, and at the same time, a cutting machine is also used to cut and remove the outer ring or inner ring of the bearing. These methods not only make the disassembly operation inconvenient, cause damage to the rollers inside the bearing, but also easily injure the workers, presenting certain safety hazards. Therefore, we have proposed a roller removal device for cylindrical roller bearings. Content of the Utility Model

[0004] The purpose of the utility model is to provide a roller removal device for cylindrical roller bearings. By setting a push plate, specifically, after the bearing is fixed on the fixed shaft, turning the second handle clockwise drives the second threaded rod to rotate, and the moving plate drives the push plate to move forward through the connecting rod, pushing the outer ring of the bearing to fall off, so that the rollers are exposed, and the workers can take out the rollers. This avoids violent disassembly and is more convenient and fast for disassembly. It not only reduces the occurrence of damage, but also is safer during the disassembly process, solving the problems that when removing the rollers of the existing cylindrical roller bearings, workers usually use tools to disassemble them by hitting, and at the same time, a cutting machine is also used to cut and remove the outer ring or inner ring of the bearing, which easily causes damage to the rollers inside the bearing, and easily injures the workers, presenting certain safety hazards.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a roller removal device for cylindrical roller bearings, including an outer bearing ring arranged on the front of the disassembly seat, the front of the disassembly seat is fixedly connected with a fixed shaft, a moving plate is arranged on the back of the disassembly seat, a retainer is arranged inside the outer bearing ring, a plurality of rollers are arranged inside the retainer, one side of the plurality of rollers away from the outer bearing ring contacts an inner bearing ring, and a push plate is arranged on the back of the outer bearing ring;

[0007] A threaded hole is provided at the center of the movable disk. A second threaded rod is threadedly connected to the inner wall of the threaded hole. A second rotary handle is fixedly connected to the back of the second threaded rod. A plurality of connecting rods are fixedly connected to the front of the movable disk. By providing a push disk, specifically, after the bearing is fixed on the fixed shaft, turning the second rotary handle clockwise drives the second threaded rod to rotate. The movable disk then drives the push disk to move forward through the connecting rods, pushing the outer ring of the bearing to make it fall off, so that the roller is exposed. The staff can then take out the roller, avoiding violent disassembly and making the disassembly more convenient and fast. This not only reduces the occurrence of damage but also makes the disassembly process safer.

[0008] Further, the inside of the fixed shaft is provided with a cavity. A circular push block is arranged inside the fixed shaft. A fixed rod is arranged on the back of the circular push block. The back of the fixed rod is fixedly connected to the front of the disassembly seat. A plurality of arc-shaped clamping blocks are arranged on the outside of the fixed shaft. The plurality of arc-shaped clamping blocks are arranged in a circumferential array. The parts connected by the plurality of arc-shaped clamping blocks are the same. By providing the arc-shaped clamping blocks, specifically, turning the first rotary handle clockwise drives the first threaded rod to move backward. The circular push block then pushes a plurality of inclined blocks, so that the plurality of arc-shaped clamping blocks expand outward simultaneously, clamping and fixing the inner ring of the bearing. During the clamping process, the bearing is pulled forward so that the front surface of the inner ring of the bearing contacts the protruding position of the arc-shaped clamping block, which can prevent the bearing from falling off during removal.

[0009] Further, a first threaded rod is fixedly connected to the front of the circular push block. The front of the first threaded rod penetrates through the fixed shaft and extends to the outside. The outer surface of the first threaded rod is threadedly connected to the fixed shaft. A first rotary handle is fixedly connected to the front of the first threaded rod. When the first threaded rod rotates clockwise, it drives the circular push block to move backward. When the first threaded rod rotates counterclockwise, it drives the circular push block to move forward.

[0010] Further, an inclined block is fixedly connected to the side of the arc-shaped clamping block close to the fixed shaft. A limiting groove is provided inside the inclined block. A limiting rod is slidably connected inside the limiting groove. A spring is sleeved outside the limiting rod. The front position on the side of the arc-shaped clamping block away from the fixed shaft is provided with a protrusion. The side of the inclined block close to the circular push block is provided with an inclined surface. The circular push block contacts the inclined surface position of the inclined block. The limiting rod penetrates through the inclined block and extends to the outside. The side of the limiting rod close to the fixed rod is fixedly connected to the surface of the fixed rod. One end of the spring is fixedly connected to the surface of the limiting rod. The other end of the spring is fixedly connected to the inner wall of the limiting groove. Turning the first rotary handle counterclockwise makes the circular push block move forward, then the arc-shaped clamping block will reset under the elastic action of the spring, thus moving away from the inner ring of the bearing and releasing the fixation of the bearing.

[0011] Further, the fronts of several of the connecting rods penetrate through the dismounting seat and extend to the outside. The connecting rods are slidably connected to the dismounting seat. The fronts of several of the connecting rods are fixedly connected to the back of the push plate. A support ring is rotatably connected to the outside of the front of the second threaded rod. The front of the support ring is fixedly connected to the back of the dismounting seat. The inclined block is slidably connected to the fixed shaft. When the second threaded rod rotates, the front rotates within the support ring. The support ring serves to support the second threaded rod and at the same time ensures that the second threaded rod rotates in place without deviation.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, by providing a push plate, specifically, after the bearing is fixed on the fixed shaft, turning the second handle clockwise drives the second threaded rod to rotate. The moving plate then drives the push plate to move forward through the connecting rod, pushing the outer ring of the bearing to make it fall off, so that the roller is exposed. The staff can then take out the roller, avoiding violent disassembly, and the disassembly is more convenient and fast. This not only reduces the occurrence of damage but also makes the disassembly process safer.

[0014] In the utility model, by providing arc-shaped clamping blocks, specifically, turning the first handle clockwise drives the first threaded rod to move backward. The circular push block then pushes a plurality of inclined blocks, so that a plurality of arc-shaped clamping blocks expand outward simultaneously to clamp and fix the inner ring of the bearing. During the clamping process, the bearing is pulled forward so that the front of the inner ring of the bearing contacts the protruding position of the arc-shaped clamping block, which can prevent the bearing from falling off during disassembly.

[0015] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram on the right side of the fixed shaft of the present utility model;

[0019] Figure 3 For the present utility model Figure 2 The enlarged structure diagram of A in it;

[0020] Figure 4 It is a schematic diagram of the overall structure of the fixed shaft of the present utility model;

[0021] Figure 5 This is a schematic diagram of the overall structure of the arc-shaped clamping block of the present utility model.

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Dismantling seat; 11. Outer ring of bearing; 111. Cage; 112. Roller; 113. Inner ring of bearing; 12. Fixed shaft; 121. Circular push block; 211. First threaded rod; 212. First turning handle; 122. Fixed rod; 123. Arc-shaped clamping block; 231. Inclined block; 232. Limit rod; 233. Spring; 13. Moving disk; 131. Second threaded rod; 132. Second turning handle; 133. Support ring; 134. Connecting rod; 135. Push disk. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5As shown in the figure, the utility model is a roller removal device for a cylindrical roller bearing, including a bearing outer ring 11 arranged on the front of a disassembly seat 1. A fixed shaft 12 is fixedly connected to the front of the disassembly seat 1. A moving disk 13 is arranged on the back of the disassembly seat 1. A cage 111 is arranged inside the bearing outer ring 11. A number of rollers 112 are arranged inside the cage 111. One side of the number of rollers 112 away from the bearing outer ring 11 contacts a bearing inner ring 113. A push disk 135 is arranged on the back of the bearing outer ring 11. A threaded hole is opened at the center of the moving disk 13. A second threaded rod 131 is threadedly connected to the inner wall of the threaded hole. A second turning handle 132 is fixedly connected to the back of the second threaded rod 131. A number of connecting rods 134 are fixedly connected to the front of the moving disk 13. By setting the push disk 135, specifically, after the bearing is fixed on the fixed shaft 12, turning the second turning handle 132 clockwise drives the second threaded rod 131 to rotate. The moving disk 13 then drives the push disk 135 to move forward through the connecting rods 134, pushing the bearing outer ring 11 to make it fall off, so that the rollers 112 are exposed. The staff can then take out the rollers 112, avoiding violent disassembly, and the disassembly is more convenient and fast. It not only reduces the occurrence of damage, but also is safer during the disassembly process. The inside of the fixed shaft 12 is a cavity. A circular push block 121 is arranged inside the fixed shaft 12. A fixed rod 122 is arranged on the back of the circular push block 121. The back of the fixed rod 122 is fixedly connected to the front of the disassembly seat 1. A number of arc-shaped clamping blocks 123 are arranged on the outside of the fixed shaft 12. The number of arc-shaped clamping blocks 123 is arranged in a circumferential array. The parts connected by the number of arc-shaped clamping blocks 123 are the same. By setting the arc-shaped clamping blocks 123, specifically, turning the first turning handle 212 clockwise drives the first threaded rod 211 to move backward. The circular push block 121 then pushes a number of inclined blocks 231, so that a number of arc-shaped clamping blocks 123 expand outward simultaneously, clamping and fixing the bearing inner ring 113. During the clamping process, pulling the bearing forward makes the front of the bearing inner ring 113 contact the protruding position of the arc-shaped clamping blocks 123, which can prevent the bearing from falling off during disassembly. A first threaded rod 211 is fixedly connected to the front of the circular push block 121. The front of the first threaded rod 211 penetrates through the fixed shaft 12 and extends to the outside. The outer surface of the first threaded rod 211 is threadedly connected to the fixed shaft 12. A first turning handle 212 is fixedly connected to the front of the first threaded rod 211. When the first threaded rod 211 rotates clockwise, it drives the circular push block 121 to move backward. When the first threaded rod 211 rotates counterclockwise, it drives the circular push block 121 to move forward.One side of the arc-shaped clamping block 123 close to the fixed shaft 12 is fixedly connected with an inclined block 231. A limiting groove is formed inside the inclined block 231. A limiting rod 232 is slidably connected inside the limiting groove. A spring 233 is sleeved outside the limiting rod 232. The front position on the side of the arc-shaped clamping block 123 away from the fixed shaft 12 is provided with a protrusion. The side of the inclined block 231 close to the circular push block 121 is provided with an inclined surface. The circular push block 121 is in contact with the inclined surface of the inclined block 231. The limiting rod 232 penetrates through the inclined block 231 and extends to the outside. One side of the limiting rod 232 close to the fixed rod 122 is fixedly connected with the surface of the fixed rod 122. One end of the spring 233 is fixedly connected with the surface of the limiting rod 232, and the other end of the spring 233 is fixedly connected with the inner wall of the limiting groove. When the rotary handle one 212 is rotated counterclockwise to make the circular push block 121 move forward, the arc-shaped clamping block 123 will reset under the elastic action of the spring 233, so as to move away from the inner ring 113 of the bearing and release the fixation of the bearing. The fronts of a plurality of connecting rods 134 all penetrate through the dismounting seat 1 and extend to the outside. The connecting rods 134 are slidably connected with the dismounting seat 1. The fronts of a plurality of connecting rods 134 are all fixedly connected with the back of the push plate 135. A support ring 133 is rotatably connected to the outer side of the front of the threaded rod two 131. The front of the support ring 133 is fixedly connected with the back of the dismounting seat 1. The inclined block 231 is slidably connected with the fixed shaft 12. When the threaded rod two 131 rotates, the front rotates inside the support ring 133. The support ring 133 is used to support the threaded rod two 131 and at the same time ensure that the threaded rod two 131 rotates in place without deviation.

[0026] A specific application of this embodiment is:

[0027] During use, insert the bearing onto the fixed shaft 12. Subsequently, rotate the first rotary handle 212 clockwise to drive the first threaded rod 211 to move backward, and then the circular push block 121 will move along with it. The circular push block 121 will push multiple inclined blocks 231, causing multiple arc-shaped clamping blocks 123 to expand outward simultaneously. When the inclined blocks 231 move, they will slide on the limiting rods 232 and compress the springs 233. When the arc-shaped clamping blocks 123 contact the inner ring 113 of the bearing, they will clamp and fix the inner ring 113 of the bearing. During the clamping process, pull the bearing forward so that the front surface of the inner ring 113 of the bearing contacts the protruding positions of the arc-shaped clamping blocks 123, which can prevent the bearing from falling off during removal. After the bearing is fixed, rotate the second rotary handle 132 clockwise to drive the second threaded rod 131 to rotate. The front surface of the second threaded rod 131 will rotate within the support ring 133. Through the rotation of the second threaded rod 131, the moving plate 13 will move forward. At the same time, drive the push plate 135 to move forward through the connecting rod 134, so that the push plate 135 contacts the back surface of the outer ring 11 of the bearing. By continuously rotating the second rotary handle 132, the push plate 135 will continuously push the outer ring 11 of the bearing. Since the front surface of the inner ring 113 of the bearing is clamped by the protruding positions of the arc-shaped clamping blocks 123, the outer ring 11 of the bearing will be pushed out by the push plate 135, causing the outer ring 11 of the bearing to fall off, and then the rollers 112 will be exposed. The staff can then take out the rollers 112, avoiding violent disassembly, and the disassembly is more convenient and fast. It not only reduces the occurrence of damage but also makes the disassembly process safer. After the disassembly is completed, rotate the second rotary handle 132 counterclockwise to drive the push plate 135 to reset, and then rotate the first rotary handle 212 counterclockwise to make the circular push block 121 move forward. Then the arc-shaped clamping blocks 123 will reset under the elastic action of the springs 233 and thus move away from the inner ring 113 of the bearing, and the inner ring 113 of the bearing can be taken out.

[0028] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0029] The above-disclosed preferred embodiments of the present utility model are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present utility model, so that those skilled in the relevant technical fields can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A roller removal device for a cylindrical roller bearing, comprising a removal seat (1) having a bearing outer ring (11) disposed on the front side thereof, and a fixed shaft (12) fixedly connected to the front side of the removal seat (1), characterized in that: A moving plate (13) is arranged on the back of the disassembly seat (1), a retaining frame (111) is arranged inside the bearing outer ring (11), a plurality of rollers (112) are arranged inside the retaining frame (111), a side of the plurality of rollers (112) away from the bearing outer ring (11) contacts the bearing inner ring (113), and a push plate (135) is arranged on the back of the bearing outer ring (11); A threaded hole is provided at the center of the movable disk (13), a second threaded rod (131) is threadedly connected to the inner wall of the threaded hole, a second turning handle (132) is fixedly connected to the back of the second threaded rod (131), and a plurality of connecting rods (134) are fixedly connected to the front of the movable disk (13).

2. The roller removal device for a cylindrical roller bearing according to claim 1, characterized in that: The interior of the fixed shaft (12) is provided with a cavity, a circular push block (121) is provided inside the fixed shaft (12), a fixing rod (122) is provided on the back of the circular push block (121), the back of the fixing rod (122) is fixedly connected to the front of the disassembly seat (1), and a plurality of arc-shaped clamping blocks (123) are provided on the outside of the fixed shaft (12), the plurality of arc-shaped clamping blocks (123) are arranged in a circular array, and the parts connected by the plurality of arc-shaped clamping blocks (123) are the same.

3. The roller removal device for a cylindrical roller bearing according to claim 2, characterized in that: The front face of the circular push block (121) is fixedly connected to a threaded rod (211); the front face of the threaded rod (211) passes through the fixed shaft (12) and extends to the outside; the outer surface of the threaded rod (211) is threadedly connected to the fixed shaft (12); the front face of the threaded rod (211) is fixedly connected to a turning handle (212).

4. The roller removal device for a cylindrical roller bearing according to claim 3, characterized in that: A side of the arc-shaped clamping block (123) close to the fixed shaft (12) is fixedly connected to an inclined block (231), a limiting groove is provided inside the inclined block (231), a limiting rod (232) is slidably connected inside the limiting groove, and a spring (233) is sleeved outside the limiting rod (232).

5. The roller removal device for a cylindrical roller bearing according to claim 4, characterized in that: The front position of the side of the arc-shaped clamping block (123) away from the fixed shaft (12) is provided with a protrusion, and the side of the inclined block (231) close to the circular push block (121) is provided with an inclined surface, and the circular push block (121) is in contact with the inclined surface of the inclined block (231).

6. The roller removal device for a cylindrical roller bearing according to claim 4, characterized in that: The limiting rod (232) passes through the inclined block (231) and extends to the outside; a side of the limiting rod (232) close to the fixing rod (122) is fixedly connected to the surface of the fixing rod (122); one end of the spring (233) is fixedly connected to the surface of the limiting rod (232); and the other end of the spring (233) is fixedly connected to the inner wall of the limiting groove.

7. The roller removal device for a cylindrical roller bearing according to claim 4, characterized in that: The front faces of the plurality of connecting rods (134) penetrate the disassembly seat (1) and extend to the outside, the connecting rods (134) are slidably connected to the disassembly seat (1), and the front faces of the plurality of connecting rods (134) are fixedly connected to the back face of the push plate (135).

8. The roller removal device for a cylindrical roller bearing according to claim 4, characterized in that: The front outer side of the second threaded rod (131) is rotatably connected to a support ring (133); the front side of the support ring (133) is fixedly connected to the back side of the disassembly seat (1); and the inclined block (231) is slidably connected to the fixed shaft (12).

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