Roller dismounting device for cylindrical roller bearing

Abstract

The utility model belongs to the technical field of roller dismantling, and particularly relates to a cylindrical roller bearing roller dismantling device which comprises a supporting ring plate, one end of the supporting ring plate is rotatably connected with a rotating ring, the outer wall of the rotating ring is fixedly connected with a driving telescopic rod, and the driving end of the driving telescopic rod is fixedly connected with a fixing plate. The fixing plate is slidably connected with a dismounting rod used for being connected with the inner wall of a roller, outer plates are arranged on the two sides of the supporting ring plate, one end of each outer plate is fixedly connected with a butt joint rod, the two butt joint rods are detachably connected, and the butt joint rods are slidably connected with sliding sleeves; sliding adjustment can be carried out according to the size and position of a roller through the sliding sleeves connected to the two butt joint rods in a sliding mode, so that the position, supported by the supporting head, of the inner wall of the bearing can be adjusted, and the situation that when the roller is pulled outwards by the disassembling rod to be disassembled, the outer wall of the bearing is clamped, and when the bearing is in a ring shape and bears large force, disengagement or dislocation is likely to happen is avoided.

Description

Technical Field

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

[0002] There are many methods for disassembling a cylindrical roller bearing, which specifically depend on the type, size and installation method of the bearing. For small-sized bearings, a puller can be used. The puller is divided into two types: two-jaw and three-jaw, and there are threaded and hydraulic types. Align the central screw of the puller with the central hole of the shaft, apply a small amount of grease for lubrication in the central hole of the shaft, hook the claw on the end face of the inner ring of the bearing, and twist the central rod with a wrench to pull out the bearing.

[0003] When the existing removal device pulls out the roller, a large pulling force needs to be provided for the roller stuck in the rotating groove. When the bearing is supported and fixed, in order to avoid limiting the pulling out of the roller, the outer wall of the rotating shaft is clamped and fixed. However, the outer wall of the rotating shaft is annular, resulting in difficulty in effectively clamping and fixing it, which is not conducive to the removal work of the roller. Summary of the Utility Model

[0004] The utility model provides a roller removal device for a cylindrical roller bearing, which has the characteristic of solving the problem that when the rotating shaft is clamped and the roller is pulled out, the rotating shaft is prone to rotate, which is not conducive to the removal work of the roller.

[0005] The utility model provides the following technical solutions: including a support ring plate, one end of the support ring plate is rotatably connected with a rotating ring, the outer wall of the rotating ring is fixedly connected with a driving telescopic rod, the driving end of the driving telescopic rod is fixedly connected with a fixing plate, a removal rod for contacting the inner wall of the roller is slidably connected to the fixing plate, outer plates are arranged on both sides of the support ring plate, one end of the outer plate is fixedly connected with a docking rod, the two docking rods are detachably connected, a sliding sleeve is slidably connected to the docking rod, a plurality of fixing rods are fixedly connected to the outer wall of the sliding sleeve, a threaded rod is threadedly connected to the fixing rod, and one end of the threaded rod is rotatably connected with a support head for supporting the inner wall of the inner ring of the bearing.

[0006] Wherein, a support seat is fixedly connected to the bottom end of the support ring plate, a supporting rod is fixedly connected to one end of the support ring plate, and the top end of the supporting rod is fixedly connected with the outer plate.

[0007] Wherein, one end of one of the docking rods is fixedly connected with a plug, a rhombic groove matching with the plug is formed on the other docking rod, a connecting groove is formed on the inner wall of the rhombic groove, a connecting rod is rotatably connected to the center of the outer plate, and one end of the connecting rod is threadedly connected with the connecting groove.

[0008] Wherein, a rotating plate is fixedly connected to the connection part of one end of the threaded rod and the supporting head, and a replaceable protective pad is installed at one end of the supporting head.

[0009] Wherein, a sliding plate is fixedly connected to one end of the supporting head, and a limiting groove matching with the sliding plate is formed on the fixed rod.

[0010] The beneficial effects of the present utility model are as follows: The sliding sleeve slidably connected to the two docking rods can be slidably adjusted according to the size and position of the roller. Coupled with the position of the supporting head, its position can be rotationally adjusted through the threaded rod, so that the position where the supporting head supports on the inner wall of the bearing can be adjusted, avoiding the outer wall of the bearing from being clamped when the roller is pulled outwards by the removal rod. Since the bearing is annular, it is prone to detachment or dislocation when subjected to large forces, affecting the corresponding insertion and extraction of the removal rod into the central hole of the roller.

[0011] Parts not involved in this device are the same as the prior art or can be realized by using the prior art. Description of the Drawings

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0013] Figure 2 is a three-dimensional structural schematic diagram of the support ring plate in the present utility model;

[0014] Figure 3 is a three-dimensional structural schematic diagram of the outer plate in the present utility model;

[0015] Figure 4 is a three-dimensional structural schematic diagram of the rotating ring in the present utility model;

[0016] Figure 5 For the present utility model Figure 1 is an enlarged schematic diagram of A.

[0017] In the figure: 1, support ring plate; 11, supporting rod; 12, support seat; 2, rotating ring; 21, driving telescopic rod; 22, fixing plate; 23, removal rod; 3, outer plate; 31, docking rod; 32, rhombic groove; 321, insertion block; 33, connecting rod; 331, connecting groove; 34, sliding sleeve; 35, fixed rod; 351, threaded rod; 352, rotating plate; 36, supporting head; 361, protective pad; 37, sliding plate; 371, limiting groove. Detailed Description of the Embodiment

[0018] Please refer to Figures 1 - 5, the present utility model provides the following technical solutions: It includes a support ring plate 1. One end of the support ring plate 1 is rotatably connected to a rotating ring 2. The outer wall of the rotating ring 2 is fixedly connected to a driving telescopic rod 21. The driving end of the driving telescopic rod 21 is fixedly connected to a fixing plate 22. A disassembling rod 23 for connecting with the inner wall of the roller is slidably connected to the fixing plate 22. Outer plates 3 are provided on both sides of the support ring plate 1. One end of the outer plate 3 is fixedly connected to a docking rod 31. The two docking rods 31 are detachably connected. A sliding sleeve 34 is slidably connected to the docking rod 31. A plurality of fixing rods 35 are fixedly connected to the outer wall of the sliding sleeve 34. A threaded rod 351 is threadedly connected to the fixing rod 35. One end of the threaded rod 351 is rotatably connected to a support head 36 for supporting the inner wall of the inner ring of the bearing.

[0019] In this embodiment: The support ring plate 1 is the carrier of the bearing device. Through the rotating ring 2 rotatably connected to one side of the support ring plate 1, the position of the driving telescopic rod 21 fixedly connected to its outer wall can be adjusted. When the driving end of the driving telescopic rod 21 extends and retracts inside the rotating ring 2 to drive the displacement of the removing rod 23, the rotating ring 2 can be rotated to make the removing rod 23 correspond to a plurality of rollers installed in the cylindrical roller bearing, so that the removing rod 23 can penetrate through the central opening of the cylindrical roller. Then, with the driving end of the driving telescopic rod 21 pushing outward, the removing rod 23 can make the cylindrical roller be taken out from the roller rotating groove on the inner wall of the bearing, avoiding the situation that when the roller is taken out, it is in the groove body and is prone to rotate in the groove body, which is not convenient for taking it out. When taking out the bearing roller, at this time, the outer plate 3 fixedly connected to one side of the support ring plate 1 can be made to correspond to the center of the support ring plate 1, and the bearing can be sleeved outside the docking rod 31. At this time, the docking rod 31 fixedly connected to one side of the outer plate 3 can be connected to another set of outer plate 3 and docking rod 31. At this time, through the connection and fixation between the two docking rods 31, the bearing can be located outside the docking rod 31. The sliding sleeve 34 slidably connected to the outer wall of the docking rod 31 can adjust its position. When the sliding sleeve 34 slides to a position corresponding to the inner wall of the bearing, and at the same time, it can be appropriately adjusted according to the size of the bearing and the length of the cylindrical roller, so that it can be adjusted to a position misaligned with a plurality of rollers rotatably connected to the inner wall of the bearing, avoiding limiting the extraction of the roller and ensuring that the removing rod 23 can take out the roller from the bearing. When the bearing is outside the docking rod 31, the fixing rod 35 fixedly connected to the outer wall of the sliding sleeve 34 is used to install the threaded rod 351. Through the threaded connection between the threaded rod 351 and the fixing rod 35, when the fixing rod 35 rotates, the position of one end of it can be adjusted, so that the threaded rod 351 can support the support head 36, making the support head 36 support on the inner wall of the rotating shaft and be misaligned with the roller. The support head 36 clamps at both ends of the roller. With three externally installed pressure fixing parts, the outer wall of the bearing is fixed. While the bearing is clamped externally, it is internally supported by the fixing rod 35, the threaded rod 351 and the support head 36. And the sliding sleeve 34 can move its whole body to a position misaligned with the roller, increasing the support strength of the device for the bearing, avoiding the rotation of the bearing when taking out the roller, and avoiding the situation that when the roller is pulled outwards by the removing rod 23, the bearing is subjected to a force perpendicular to its fixation, resulting in detachment or misalignment, which affects the penetration and extraction of the removing rod 23 through the central hole of the roller.

[0020] A support seat 12 is fixedly connected to the bottom end of the support ring plate 1, and a supporting rod 11 is fixedly connected to one end of the support ring plate 1. The top end of the supporting rod 11 is fixedly connected to the outer plate 3; the support seat 12 fixedly connected to the bottom end of the support ring plate 1 is used to support the support ring plate 1, making the support ring plate 1 vertically placed to fixedly clamp the bearing, and the supporting rod 11 fixedly connected to one end of the support ring plate 1 is used to support and fix the outer plate 3.

[0021] One end of one docking rod 31 is fixedly connected with an insertion block 321, and a rhombus groove 32 matching the insertion block 321 is formed on the other docking rod 31. A connecting groove 331 is formed on the inner wall of the rhombus groove 32. A connecting rod 33 is rotatably connected to the center of the outer plate 3. One end of the connecting rod 33 is threadedly connected with the connecting groove 331; the insertion block 321 fixedly connected to one end of the docking rod 31 is used to make the docking rods 31 connected. After the insertion block 321 is inserted and limited on the inner wall of the rhombus groove 32, the two docking rods 31 will not rotate, ensuring the stability of their connection. The connecting rod 33 is used to connect with the connecting groove 331 formed on the inner wall of the rhombus groove 32, so that the docking rods 31 are fixedly connected and can be separated from the connecting groove 331 through the connecting rod 33, so that the two docking rods 31 are separated.

[0022] A rotating plate 352 is fixedly connected to the connection between one end of the threaded rod 351 and the support head 36. A replaceable protective pad 361 is installed at one end of the support head 36; the rotating plate 352 fixedly connected to one end of the threaded rod 351 is used to rotatably connect with the support head 36. Through the rotating plate 352, it is convenient to rotate the fixed rod 35 to adjust the position of one end of the support head 36. The protective pad 361 is used to support the inner wall of the rotating shaft. At the same time, with the cooperation of the replaceable protective pad 361, it can be replaced according to the size of the rotating shaft to facilitate its support and protection.

[0023] A sliding plate 37 is fixedly connected to one end of the support head 36, and a limiting groove 371 matching the sliding plate 37 is formed on the fixed rod 35; the sliding plate 37 fixedly connected to one end of the support head 36 can slide and be limited in the limiting groove 371 when the position of the support head 36 is adjusted, ensuring that after the position of the support head 36 is adjusted, the protective pad 361 installed at one end of the support head 36 can support on the inner wall of the rotating shaft.

[0024] The working principle and usage process of the present utility model: By connecting two sections of docking rods 31, after the docking rods 31 are connected, the bearing is sleeved outside the docking rods 31. Through three pressure fixing parts installed outside the support ring plate 1, the outer wall of the bearing is fixed. Then, through the sliding sleeve 34 slidably connected to the outer wall of the docking rod 31, the sliding sleeve 34 is slid, so that the fixed rod 35 fixedly connected to the outer wall of the sliding sleeve 34 can be slid and adjusted to a position, so that the threaded rod 351 threadedly connected to one end of the fixed rod 35 can adjust the position where the support head 36 is located. With the sliding of the sliding sleeve 34, the support head 36 can support on the inner wall of the rotating shaft, and can be appropriately adjusted according to the size of the bearing and the length of the cylindrical roller, so that it can be adjusted to a position misaligned with several rollers rotatably connected to the inner wall of the bearing, so as to avoid limiting the extraction of the rollers, avoid the rotation of the bearing when the removing rod 23 removes the rollers, and avoid the bearing being subjected to a force perpendicular to its fixing when the rollers are pulled outwards by the removing rod 23, resulting in detachment or misalignment, which affects the corresponding extraction of the center hole of the rollers by the removing rod 23.

Claims

1. A cylindrical roller bearing roller removal device, comprising a support ring plate (1), characterized in that: One end of the support ring plate (1) is rotatably connected to a rotating ring (2). A driving telescopic rod (21) is fixedly connected to the outer wall of the rotating ring (2). A fixed plate (22) is fixedly connected to the driving end of the driving telescopic rod (21). A disassembling rod (23) for contacting the inner wall of the roller is slidably connected to the fixed plate (22). Outer plates (3) are arranged on both sides of the support ring plate (1). One end of the outer plate (3) is fixedly connected to a docking rod (31). The two docking rods (31) are detachably connected. A sliding sleeve (34) is slidably connected to the docking rod (31). A plurality of fixed rods (35) are fixedly connected to the outer wall of the sliding sleeve (34). A threaded rod (351) is threadedly connected to the fixed rod (35). One end of the threaded rod (351) is rotatably connected to a support head (36) for supporting the inner wall of the bearing inner ring.

2. The roller removal device for a cylindrical roller bearing according to claim 1, characterized in that: A support seat (12) is fixedly connected to the bottom end of the support ring plate (1). A supporting rod (11) is fixedly connected to one end of the support ring plate (1). The top end of the supporting rod (11) is fixedly connected to the outer plate (3).

3. The roller removal device for a cylindrical roller bearing according to claim 1, characterized in that: One end of one of the docking rods (31) is fixedly connected to a plug (321). A rhombic groove (32) matching the plug (321) is formed in the other docking rod (31). A connecting groove (331) is formed in the inner wall of the rhombic groove (32). A connecting rod (33) is rotatably connected to the center of the outer plate (3). One end of the connecting rod (33) is threadedly connected to the connecting groove (331).

4. A cylindrical roller bearing roller removal device according to claim 1, characterized in that: A rotating plate (352) is fixedly connected to the connection between one end of the threaded rod (351) and the support head (36). A replaceable protective pad (361) is installed at one end of the support head (36).

5. The roller removal device for a cylindrical roller bearing according to claim 1, wherein: One end of the support head (36) is fixedly connected to a sliding plate (37). A limiting groove (371) matching the sliding plate (37) is formed in the fixed rod (35).

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