Bearing puller

Abstract

The utility model relates to bearing dismounting technical field especially bearing dismounting tool, including elevating screw rod, still including connecting post, jackscrew, adjusting nut, connecting assembly, abutting column, tongs head, armature and adjusting assembly, the bottom end rotationally connected with connecting post of elevating screw rod, the bottom end of connecting post is provided with jackscrew, the outside screw thread rotationally connected with adjusting nut of jackscrew, the below of adjusting nut is provided with abutting column, and abutting column is fixedly connected with adjusting nut through connecting assembly, and the bottom end between adjusting nut and abutting column is provided with tongs head, and the outside of tongs head is provided with two sets of armature, one set of armature is fixedly connected with tongs head, and another set of armature is rotationally connected with tongs head through adjusting assembly, and the bearing inner ring is conveniently pulled out through armature clamping, and the utility model discloses a clamping and pulling mode, and the inner ring is tightly supported according to the actual size of bearing, reduces the operation difficulty of bearing dismounting, saves operation time, speeds up the repair speed, avoids damaging each structure of equipment.

Description

Technical Field

[0001] This utility model relates to the field of bearing disassembly technology, and in particular to bearing disassembly tools. Background Technology

[0002] During coal mine construction operations, geological conditions frequently change and the hardness of coal varies, which can easily cause wear on the clutch bearings of the coal mining machine. In order to ensure the normal operation of subsequent operations, it is necessary to replace the damaged bearings in a timely manner.

[0003] Currently, when disassembling bearings, the limited working space inside the bearing and the smooth inner ring with no leverage point make bearing replacement time-consuming and labor-intensive. Improper disassembly methods may also exacerbate bearing wear and even damage other structures of the equipment, seriously affecting maintenance efficiency.

[0004] Therefore, in response to the current difficulties in disassembling bearings, a bearing disassembly tool can be designed. By using a snap-fit ​​and pull-out method, the inner ring can be tightly supported according to the actual size of the bearing, reducing the difficulty of disassembling the bearing, saving operation time, speeding up maintenance, avoiding damage to various structures of the equipment, saving time and effort, and thus effectively improving the efficiency of bearing maintenance. Utility Model Content

[0005] In order to overcome the problem that most bearing disassembly operations are time-consuming and labor-intensive due to the small working space inside the bearing and the smooth inner ring of the bearing having no leverage point, which may also aggravate the wear and tear of the bearing and even damage other structures of the equipment, this utility model is proposed.

[0006] The technical solution of this utility model is as follows: a bearing disassembly tool, including a lifting screw, a pull-out assembly, a connecting post, a set screw, an adjusting nut, a connecting assembly, a stop post, a pliers head, an armature, and an adjusting assembly. The pull-out assembly is provided on the outer side of the lifting screw. The bottom end of the lifting screw is rotatably connected to the connecting post. The bottom end of the connecting post is provided with a set screw. The outer thread of the set screw is rotatably connected to the adjusting nut. The stop post is provided below the adjusting nut. The stop post is fixedly connected to the adjusting nut through the connecting assembly. The pliers head is provided between the bottom end of the adjusting nut and the stop post. Two sets of armatures are provided on the outer side of the pliers head. One set of armatures is fixedly connected to the pliers head, and the other set of armatures is rotatably connected to the pliers head through the adjusting assembly.

[0007] Preferably, the armature is moved to the inner ring of the bearing by setting a lifting screw, and the adjusting nut is rotated around the set screw to raise the abutment post. The abutment post is fixedly connected to the adjusting nut by the connecting assembly. Raising the abutment post makes it abut against the movable armature. At the same time, the set screw abuts against the top of the clamp head, causing the adjusting assembly to move the movable armature and flexibly adjust the opening angle of the two sets of armatures. Thus, according to the actual size of the bearing, the two sets of armatures are tightly abut against the inner ring of the bearing. By rotating the lifting screw around the connecting post by the pull-out assembly, the bearing stuck by the armature is pulled out. This achieves the effect of tightly supporting the inner ring according to the actual size of the bearing, reducing the difficulty of disassembling the bearing, saving operation time, speeding up maintenance, avoiding damage to the structure of the equipment, saving time and effort, and improving the efficiency of bearing maintenance.

[0008] Preferably, the bottom end of the adjusting nut abuts against the top end of the pliers head, and the abutting post abuts against the bottom end of the pliers head, separating the two sets of armatures through the abutting post.

[0009] Preferably, the extraction assembly includes a rotating rod, a horizontal plate, a support rod, and a base plate. The top of the lifting screw is provided with a rotating rod, the lifting screw passes through the horizontal plate, and the lifting screw is threadedly connected to the horizontal plate. Support components are symmetrically provided at the bottom of both ends of the horizontal plate, and the lower end of the support components is fixedly connected to the base plate.

[0010] Preferably, the supporting component is a support rod, which has a cylindrical structure and its lower end is fixedly connected to the base plate.

[0011] Preferably, the support component includes a support rod and a threaded sleeve. The lower half of the outer side of the support rod has a threaded groove, and the bottom outer side of the support rod is threadedly connected to the threaded sleeve. The lower end of the threaded sleeve is fixedly connected to the base plate.

[0012] Preferably, the connecting assembly includes a connecting rod and a collar. Two sets of connecting rods are symmetrically arranged on the outer side of the adjusting nut. The other end of the connecting rod is fixedly connected to both ends of the abutment post. Two sets of collars are symmetrically arranged on the outer side of the pliers head. The connecting rod is sleeved on the inner side of the collar ring.

[0013] Preferably, the adjustment assembly includes a T-shaped groove and a T-shaped slider. The arc surface on one side of the clamp head is provided with a T-shaped groove, and the inner arc surface at the top of one set of armatures is provided with a T-shaped slider, which is fitted and slidably connected along the T-shaped groove.

[0014] The beneficial effects of this utility model are: When disassembling a bearing, move the armature inside the bearing inner ring, rotate the adjusting nut around the set screw to raise the abutment post, and raise the abutment post to make it abut the movable armature. At the same time, adjust the opening angle of the two sets of armatures by abutting the top of the clamp head with the set screw, so that the two sets of armatures are tightly abutted against the bearing inner ring according to the actual size of the bearing. Finally, rotate the lifting screw around the connecting post, and pull out the bearing that is stuck by the armature by turning the lifting screw upward. This achieves the goal of tightly supporting the inner ring according to the actual size of the bearing, reducing the difficulty of disassembling the bearing, saving operation time, and speeding up maintenance. This solves the problem that in most bearing disassembly operations, due to the narrow working space inside the bearing and the smooth inner ring without a point of force, the replacement of the bearing is time-consuming and laborious, which may also aggravate the wear of the bearing and even damage other structures of the equipment. This improves the efficiency of bearing maintenance. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of Embodiment 1 of the bearing disassembly tool of this utility model; Figure 2 The diagram shown is a three-dimensional structural schematic of the pull-out component of Embodiment 2 of the bearing disassembly tool of this utility model; Figure 3 The diagram shown is a three-dimensional structural schematic of the connecting component of Embodiment 1 of the bearing disassembly tool of this utility model; Figure 4 The diagram shown is a three-dimensional structural diagram of the split-type connecting component of Embodiment 1 of the bearing disassembly tool of this utility model; Figure 5 The diagram shown is a three-dimensional structural schematic of the adjustment component of Embodiment 1 of the bearing disassembly tool of this utility model. Explanation of reference numerals in the attached drawings: 1. Lifting screw; 101. Rotating rod; 102. Horizontal plate; 103. Support rod; 104. Base plate; 105. Threaded sleeve; 2. Connecting column; 3. Set screw; 4. Adjusting nut; 401. Connecting rod; 402. Collar; 5. Abutment column; 6. Clamping head; 7. Armature; 701. T-shaped groove; 702. T-shaped slider. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example 1 Please see Figure 1 and Figure 3This utility model provides an embodiment of a bearing disassembly tool, including a lifting screw 1, a pull-out assembly, a connecting post 2, a set screw 3, an adjusting nut 4, a connecting assembly, an abutment post 5, a pliers head 6, armatures 7, and an adjusting assembly. A pull-out assembly is provided on the outer side of the lifting screw 1. The bottom end of the lifting screw 1 is rotatably connected to the connecting post 2. The bottom end of the connecting post 2 is provided with a set screw 3. The outer side of the set screw 3 is rotatably connected to the adjusting nut 4. An abutment post 5 is provided below the adjusting nut 4. The abutment post 5 is fixedly connected to the adjusting nut 4 via the connecting assembly. A pliers head 6 is provided between the bottom end of the adjusting nut 4 and the abutment post 5. The bottom end of the adjusting nut 4 abuts against the top end of the pliers head 6, and the abutment post 5 abuts against the bottom end of the pliers head 6. Two sets of armatures 7 are provided on the outer side of the pliers head 6, separated by the abutment post 5. One set of armatures 7 is fixedly connected to the pliers head 6, and the other set of armatures 7 is rotatably connected to the pliers head 6 via the adjusting assembly.

[0018] Please see Figure 1 In this embodiment, the extraction assembly includes a rotating rod 101, a horizontal plate 102, a support rod 103, and a base plate 104. The top of the lifting screw 1 is provided with the rotating rod 101, and the lifting screw 1 is provided through the horizontal plate 102. The lifting screw 1 is threadedly connected to the horizontal plate 102. Supporting components are symmetrically provided at the bottom of both ends of the horizontal plate 102. The lower end of the supporting component is fixedly connected to the base plate 104. The supporting component is the support rod 103, which has a cylindrical structure. The lower end of the support rod 103 is fixedly connected to the base plate 104. The base plate 104 abuts against the work surface, and the support rod 103 supports and fixes the horizontal plate 102. Rotating the rotating rod 101 drives the lifting screw 1 to rotate, so that the lifting screw 1 rotates up or down around the horizontal plate 102. Rotating the lifting screw 1 adjusts the height of the armature 7, thereby flexibly fixing the tool placement position.

[0019] Please see Figure 3 and Figure 4 In this embodiment, the connecting assembly includes a connecting rod 401 and a collar 402. Two sets of connecting rods 401 are symmetrically arranged on the outer side of the adjusting nut 4. The other end of the connecting rod 401 is fixedly connected to both ends of the abutment post 5. Two sets of collars 402 are symmetrically arranged on the outer side of the pliers head 6. The connecting rod 401 is sleeved on the inner side of the collar 402. The abutment post 5 is connected and fixed through the connecting rod 401. The collar 402 is used to ensure that the pliers head 6 is stably sleeved on the abutment post 5.

[0020] Please see Figure 5In this embodiment, the adjustment component includes a T-shaped groove 701 and a T-shaped slider 702. The arc surface on one side of the clamp head 6 is provided with a T-shaped groove 701. The inner arc surface at the top of one set of armatures 7 is provided with a T-shaped slider 702. The T-shaped slider 702 is fitted and slidably connected along the T-shaped groove 701. When adjusting the opening of the two sets of armatures 7, the abutment post 5 abuts against the movable armature 7 upwards, causing the T-shaped slider 702 of the armature 7 to slide along the T-shaped groove 701, ensuring the stable displacement of the movable armature 7.

[0021] Before disassembling the bearing, place the base plate 104 against the work surface, press the horizontal plate 102, rotate the rotating rod 101 to drive the lifting screw 1 to rotate downward, move the armature 7 to the inside of the bearing inner ring, and then rotate the adjusting nut 4 around the set screw 3 to raise the abutment column 5 so that it abuts the movable armature 7, expand the opening of the two sets of armature 7, and make the two sets of armature 7 tightly abut against the bearing inner ring. When disassembling the bearing, press down on the horizontal plate 102, rotate the rotating rod 101 to drive the lifting screw 1 to rotate upward, so that the lifting screw 1 rotates around the connecting column 2, and the upward rotating lifting screw 1 pulls out the bearing that is stuck by the armature 7.

[0022] Example 2 Please see Figure 2 The difference from Embodiment 1 is that in this embodiment, the support component includes a support rod 103 and a threaded sleeve 105. The lower half of the outer side of the support rod 103 is provided with a threaded groove, and the threaded sleeve 105 is rotatably connected to the outer side of the bottom end of the support rod 103. The lower end of the threaded sleeve 105 is fixedly connected to the base plate 104. In this embodiment, for situations where the height of the work surface is not uniform, the threaded sleeve 105 can be rotated around the support rod 103 to flexibly adjust the height of the base plate 104, ensuring that the lifting screw 1 is placed perpendicular to the work surface where the bearing is located.

[0023] Through the above steps, the armature 7 is moved into the inner ring of the bearing by setting the lifting screw 1. The adjusting nut 4 is rotated around the set screw 3 to raise the abutment post 5. The abutment post 5 is fixedly connected to the adjusting nut 4 using the connecting assembly. Raising the abutment post 5 makes it abut against the movable armature 7. At the same time, the set screw 3 abuts against the top of the clamp head 6, causing the adjusting assembly to move the movable armature 7. The opening angle of the two sets of armatures 7 can be flexibly adjusted, so that the two sets of armatures 7 are tightly abut against the inner ring of the bearing according to the actual size of the bearing. By rotating the lifting screw 1 around the connecting post 2 using the pull-out assembly, the bearing that is stuck by the armature 7 is pulled out by rotating the lifting screw 1 upwards. Thus, the inner ring is tightly supported according to the actual size of the bearing, reducing the difficulty of disassembling the bearing, saving operation time, speeding up maintenance, avoiding damage to the structure of the equipment, and saving time and effort.

[0024] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A bearing disassembly tool, comprising a lifting screw (1), characterized in that: It also includes a pull-out assembly, a connecting post (2), a set screw (3), an adjusting nut (4), a connecting assembly, an abutment post (5), a pliers head (6), an armature (7), and an adjusting assembly. The pull-out assembly is provided on the outside of the lifting screw (1). The bottom end of the lifting screw (1) is rotatably connected to the connecting post (2). The bottom end of the connecting post (2) is provided with a set screw (3). The outer thread of the set screw (3) is rotatably connected to the adjusting nut (4). The abutment post (5) is provided below the adjusting nut (4). The abutment post (5) is fixedly connected to the adjusting nut (4) through the connecting assembly. The pliers head (6) is provided between the bottom end of the adjusting nut (4) and the abutment post (5). Two sets of armatures (7) are provided on the outside of the pliers head (6). One set of armatures (7) is fixedly connected to the pliers head (6), and the other set of armatures (7) is rotatably connected to the pliers head (6) through the adjusting assembly.

2. The bearing disassembly tool according to claim 1, characterized in that: The bottom end of the adjusting nut (4) abuts against the top end of the pliers (6), and the abutting post (5) abuts against the bottom end of the pliers (6), separating the two sets of armatures (7) through the abutting post (5).

3. The bearing disassembly tool according to claim 1, characterized in that: The pull-out assembly includes a rotating rod (101), a horizontal plate (102), a support rod (103), and a base plate (104). The top of the lifting screw (1) is provided with a rotating rod (101). The lifting screw (1) passes through the horizontal plate (102). The lifting screw (1) is threadedly connected to the horizontal plate (102). Supporting components are symmetrically provided at the bottom of both ends of the horizontal plate (102). The bottom end of the supporting components is fixedly connected to the base plate (104).

4. The bearing disassembly tool according to claim 3, characterized in that: The supporting component is a support rod (103), which is a cylindrical structure. The lower end of the support rod (103) is fixedly connected to the base plate (104).

5. The bearing disassembly tool according to claim 3, characterized in that: The support component includes a support rod (103) and a threaded sleeve (105). The lower half of the outer side of the support rod (103) is provided with a threaded groove. The bottom outer side of the support rod (103) is threadedly rotatably connected to the threaded sleeve (105). The lower end of the threaded sleeve (105) is fixedly connected to the base plate (104).

6. The bearing disassembly tool according to claim 1, characterized in that: The connecting assembly includes a connecting rod (401) and a collar (402). Two sets of connecting rods (401) are symmetrically arranged on the outside of the adjusting nut (4). The other end of the connecting rod (401) is fixedly connected to both ends of the abutment post (5). Two sets of collars (402) are symmetrically arranged on the outside of the pliers head (6). The connecting rod (401) is sleeved on the inner side of the collar (402).

7. The bearing disassembly tool according to claim 1, characterized in that: The adjustment assembly includes a T-shaped groove (701) and a T-shaped slider (702). The arc surface on one side of the clamp head (6) is provided with a T-shaped groove (701), and the inner arc surface at the top of one set of armatures (7) is provided with a T-shaped slider (702). The T-shaped slider (702) is fitted and slidably connected along the T-shaped groove (701).

Images