Disassembling device for oil film bearing

Abstract

The utility model discloses a device for oil film bearing's dismounting, including device main part, install bearing main body in device main part, and the one end of bearing main body is installed with connecting shaft, and the movable slot is seted up in bearing main body, and install a plurality of ball in movable slot, and the one end of connecting shaft is equipped with fixed ring, and the movable slot is seted up in fixed ring with a plurality of limit slot, and the one end of limit slot is installed with installation rod, the utility model discloses through setting up fixed ring and installation rod etc, when needing to remove bearing main body, through inserting the pie piece of a plurality of installation rod one end into movable slot, and rotating the position of pie piece makes it vertical, and the inner wall of movable slot is resisted, makes it fixed in bearing main body, through starting drive motor and driving screw rod rotation, through the thread of fixed ring and drive a plurality of installation rod to the direction of drive motor removal, and then drive bearing main body and pull out from device main part, complete the removal of bearing main body, prevent the damage of the side of bearing main body and cause the damage of hard and crooked.

Description

Technical Field

[0001] This utility model relates to the field of oil film bearing disassembly and assembly technology, specifically to a disassembly and assembly device for oil film bearings. Background Technology

[0002] As an important type of sliding bearing, oil film bearings are widely used in key equipment such as heavy machinery, high-speed motors, hydro-generator sets, ship propulsion systems, and large industrial fans due to their high load-bearing capacity, excellent damping characteristics, and stable operation. Their working principle relies on the formation of a stable pressure oil film between the shaft and the bearing sleeve to achieve completely non-contact fluid lubrication. This places stringent requirements on the extremely high fitting accuracy and surface finish between the bearing and the shaft and bearing housing.

[0003] Traditional disassembly of oil film bearings relies on the experience and physical strength of operators, usually using methods such as hammering, prying, or using hydraulic pullers. Hammering and prying can easily cause irreversible scratches, deformation, and other damage to the precision bearing working surfaces, cages, or mating journals. Ordinary hydraulic pullers, because their claws can only apply force from the outer ring of the bearing, are not only prone to slippage, but may also generate huge radial extrusion forces on the bearing sleeve, causing the thin-walled bearing sleeve to become out of round and unusable. Therefore, there is a need for disassembly and assembly devices for oil film bearings to meet people's needs. Utility Model Content

[0004] The purpose of this invention is to provide a disassembly and assembly device for oil film bearings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a disassembly and assembly device for an oil film bearing, comprising a device body, a bearing body installed inside the device body, a connecting shaft installed at one end of the bearing body, a movable groove opened inside the bearing body, a plurality of balls installed in the movable groove, a fixing ring provided at one end of the connecting shaft, a plurality of limiting grooves opened inside the fixing ring, an installation rod installed at one end of the limiting groove, a disc block installed at one end of the installation rod, a threaded rod installed on the side of the fixing ring, and a drive motor installed at the end of the threaded rod away from the connecting shaft.

[0006] Preferably, the ball bearing is rotatably mounted in the movable groove, and the side of the disc block is adapted to the movable groove.

[0007] Preferably, a round block is installed at one end of the mounting rod near the fixing ring, and the round block is rotatably installed in the limiting groove.

[0008] Preferably, one end of the threaded rod is provided with a hexagonal groove, and one end of the drive motor is equipped with a hexagonal block adapted to the hexagonal groove.

[0009] Preferably, a connecting rod is installed at one end of the disc block, and the diameter of the connecting rod is much smaller than the opening of the movable groove.

[0010] Preferably, the fixing ring has a threaded groove, and the side of the threaded rod is threaded onto the threaded groove.

[0011] Preferably, one end of the threaded rod abuts against the connecting shaft, and the sides of the plurality of disc blocks abut against the inner wall of the movable groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) By setting a fixing ring and mounting rods, when it is necessary to remove the bearing body, the circular blocks at one end of multiple mounting rods are inserted into the movable groove, and the position of the circular blocks is rotated to make them vertical and abut against the inner wall of the movable groove, so that they are fixed inside the bearing body. By starting the drive motor to drive the threaded rod to rotate, the threads of the fixing ring drive multiple mounting rods to move in the direction of the drive motor, thereby driving the bearing body to be pulled out from the device body, thus completing the removal of the bearing body and preventing damage caused by prying the side of the bearing body.

[0014] (2) This utility model sets up a limiting groove and a round block, etc. The round block is installed in the limiting groove by rotating one end. When it is necessary to remove different bearing bodies, the position of the round block can be rotated to adjust the position of the round block in the movable groove. The sides of multiple round blocks abut against the inner wall of the movable groove to form a triangular position. At this time, the hexagonal block on the output shaft of the drive motor is installed in the hexagonal groove, the drive motor is started to rotate, and the fixed ring is moved. By moving the round block in the limiting groove, bearing bodies of different sizes can be removed, which improves the applicability of the fixed ring. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the disassembly and assembly device for oil film bearings proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the movable groove and ball bearings of the disassembly and assembly device for oil film bearings proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the hexagonal groove and hexagonal block structure of the disassembly and assembly device for oil film bearings proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the mounting rod and disc block of the disassembly and assembly device for oil film bearings proposed in this utility model.

[0019] In the diagram: 1. Main body of the device; 2. Bearing body; 3. Connecting shaft; 4. Movable groove; 5. Ball bearing; 6. Fixing ring; 7. Limiting groove; 8. Mounting rod; 9. Circular block; 10. Threaded rod; 11. Drive motor; 12. Circular block; 13. Hexagonal groove; 14. Hexagonal block; 15. Connecting rod; 16. Threaded groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please refer to Figure 1-4This utility model provides a technical solution: a disassembly and assembly device for an oil film bearing, comprising a device body 1, a bearing body 2 installed inside the device body 1, a connecting shaft 3 installed at one end of the bearing body 2, a movable groove 4 opened inside the bearing body 2, a plurality of balls 5 installed in the movable groove 4, a fixing ring 6 provided at one end of the connecting shaft 3, a plurality of limiting grooves 7 opened inside the fixing ring 6, an installation rod 8 installed at one end of the limiting groove 7, a circular block 9 installed at one end of the installation rod 8, and a threaded rod 10 installed on the side of the fixing ring 6. A drive motor 11 is installed at one end of the connecting shaft 3. Ball bearings 5 ​​are rotatably installed in the movable groove 4. The side of the disc block 9 is adapted to the movable groove 4. One end of the threaded rod 10 has a hexagonal groove 13. One end of the drive motor 11 is equipped with a hexagonal block 14 adapted to the hexagonal groove 13. A threaded groove 16 is opened inside the fixing ring 6. The side of the threaded rod 10 is threadedly connected to the threaded groove 16. One end of the threaded rod 10 abuts against the connecting shaft 3. The sides of the multiple disc blocks 9 abut against the inner wall of the movable groove 4. When it is necessary to remove the bearing body 2... At this time, the fixing ring 6 is removed and placed on the side of the device body 1. Multiple mounting rods 8 on the side of the fixing ring 6 are then connected to the bearing body 2. The connecting rod 15 and the disc block 9 on the side of the mounting rod 8 are installed in the movable groove 4. During placement, the disc block 9 is inserted horizontally into the movable groove 4. The diameter of the connecting rod 15 is much smaller than the opening of the movable groove 4. After placing the disc block 9, it is rotated to make it vertical, thus fixing it in place. After placing the three disc blocks 9, a triangular structure is formed, extending from the threaded groove 16 on the fixing ring 6. The threaded rod 10 is rotated in until one end of the threaded rod 10 abuts against the connecting shaft 3. At this point, the drive motor 11 can be removed. The hexagonal block 14 on the output shaft of the drive motor 11 is installed in correspondence with the hexagonal groove 13 on the threaded rod 10. After the drive motor 11 is started, it drives the threaded rod 10 to rotate. At this time, the fixing ring 6 moves on the threaded rod 10. Through multiple round disc blocks 9 abutting against the inner wall of the movable groove 4 to form barbs, it moves towards the drive motor 11, thereby removing the bearing body 2 from the device body 1.

[0022] Example 2: As Figure 4 As shown, a circular block 12 is installed at one end of the mounting rod 8 near the fixing ring 6. The circular block 12 is rotatably installed in the limiting groove 7. A connecting rod 15 is installed at one end of the circular disc block 9. The diameter of the connecting rod 15 is much smaller than the opening of the movable groove 4. When it is necessary to remove bearing bodies 2 of different sizes, it is only necessary to adjust the position of the circular block 12 rotating in the limiting groove 7 so that multiple circular disc blocks 9 are mounted as shown. Figure 4 The position can be adjusted by unfolding the bearing body 2, thus enabling the use of bearing bodies 2 of different sizes, improving the applicability of the fixing ring 6. The remaining features are the same as in Embodiment 1.

[0023] The working principle is as follows: When it is necessary to remove the bearing body 2, take out the fixing ring 6 and place it on the side of the device body 1. The multiple mounting rods 8 on the side of the fixing ring 6 are connected to the bearing body 2. The connecting rod 15 and the disc block 9 on the side of the mounting rod 8 are installed in the movable groove 4. When placing, the disc block 9 is inserted horizontally into the movable groove 4. The diameter of the connecting rod 15 is much smaller than the opening of the movable groove 4. After the disc block 9 is placed, rotate the disc block 9 to make it vertical, which plays a fixing role. After the three disc blocks 9 are placed, a triangular structure is formed. The threaded rod 10 is turned into the threaded groove 16 on the fixing ring 6. By turning it in continuously, one end of the threaded rod 10 is brought into contact with the connecting shaft 3. At this time, the drive motor 11 can be removed. The hexagonal block 14 on the output shaft is installed correspondingly to the hexagonal slot 13 on the threaded rod 10. After the drive motor 11 is started, it drives the threaded rod 10 to rotate. At this time, the fixing ring 6 moves on the threaded rod 10. Multiple round discs 9 abut against the inner wall of the movable slot 4 to form barbs, moving towards the drive motor 11, thereby removing the bearing body 2 from the device body 1. No pry bar or other tools are needed, and the bearing body 2 will not be damaged. When it is necessary to remove bearing bodies 2 of different sizes, it is only necessary to adjust the position of the round block 12 rotating in the limiting slot 7 so that the multiple round discs 9 are unfolded as shown in the movable slot 4. The position installed in the bearing body 2 can be adjusted to complete the use of bearing bodies 2 of different sizes, thus improving the applicability of the fixing ring 6.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disassembly and assembly device for oil film bearings, comprising a device body (1), characterized in that: The main body (1) of the device is equipped with a bearing body (2), and a connecting shaft (3) is installed at one end of the bearing body (2). A movable groove (4) is opened in the bearing body (2), and multiple balls (5) are installed in the movable groove (4). A fixing ring (6) is provided at one end of the connecting shaft (3). Multiple limiting grooves (7) are opened in the fixing ring (6). An installation rod (8) is installed at one end of the limiting groove (7). A disc block (9) is installed at one end of the installation rod (8). A threaded rod (10) is installed on the side of the fixing ring (6). A drive motor (11) is installed at the end of the threaded rod (10) away from the connecting shaft (3).

2. The disassembly and assembly device for oil film bearings according to claim 1, characterized in that: The ball bearing (5) is rotatably installed in the movable groove (4), and the side of the disc block (9) is adapted to the movable groove (4).

3. The disassembly and assembly device for oil film bearings according to claim 1, characterized in that: A round block (12) is installed at one end of the mounting rod (8) near the fixing ring (6), and the round block (12) is rotatably installed in the limiting groove (7).

4. The disassembly and assembly device for oil film bearings according to claim 1, characterized in that: One end of the threaded rod (10) is provided with a hexagonal slot (13), and one end of the drive motor (11) is equipped with a hexagonal block (14) that is compatible with the hexagonal slot (13).

5. The disassembly and assembly device for oil film bearings according to claim 2, characterized in that: A connecting rod (15) is installed at one end of the disc block (9), and the diameter of the connecting rod (15) is much smaller than the opening of the movable groove (4).

6. The disassembly and assembly device for oil film bearings according to claim 1, characterized in that: The fixing ring (6) has a threaded groove (16) inside, and the side of the threaded rod (10) is threadedly connected to the threaded groove (16).

7. The disassembly and assembly device for oil film bearings according to claim 2, characterized in that: One end of the threaded rod (10) abuts against the connecting shaft (3), and the sides of the plurality of disc blocks (9) abut against the inner wall of the movable groove (4).

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