Special tool for replacing frequency converter fan bearing

Abstract

The utility model discloses mechanical maintenance tool technical field, concretely is related to frequency converter fan bearing replaces special tool ware, including hammering ring, installation disc, rotary lid, a plurality of springs and a plurality of adjusting blocks, the installation disc is installed to hammering ring one side, and the installation disc brim is provided with the connecting ring, and the installation disc center is provided with fixed column, and the fixed column outer wall evenly is provided with a plurality of limit cylinder along the radial direction, and the adjusting block one side sets up the limit rod, and the limit rod is limited in the limit cylinder and can move along the limit cylinder axis, and the adjusting block is provided with the spring between fixed column, and the adjusting block is gradually contracted from the installation disc one end close to to the installation disc one end away, and the rotary lid rear end can be screwed on the connecting ring, and the rotary lid front end sets up the through -hole, and a plurality of adjusting blocks are limited in the through -hole, and screwing rotary lid can control adjusting block to be close to or away from fixed column. The device can dismantle the bearing of different sizes, and the operation is simple, and the device is strong in adaptability.

Description

Technical Field

[0001] This utility model relates to the field of mechanical repair tools, specifically to a special tool for replacing the fan bearing of a frequency converter. Background Technology

[0002] Disassembling the inverter fan bearing is a common task during inverter maintenance and repair. Due to long-term operation, inverter fan bearings may experience wear, lubrication failure, and other problems, requiring timely disassembly and replacement to ensure proper heat dissipation and stable operation of the inverter.

[0003] Currently, various tools are available on the market for disassembling inverter fan bearings, such as pullers and jacks. These traditional disassembly tools typically employ a fixed structural design, using mechanical force to separate the bearing from the shaft. However, inverter fan bearings come in a variety of sizes and specifications; different brands and models of inverters have variations in the diameter, thickness, and installation method of their fan bearings. Existing traditional disassembly tools are often only suitable for disassembling bearings within a specific size range. When dealing with bearings of different sizes, different sized disassembly tools are required, making the operation cumbersome and inefficient. This not only increases maintenance costs but also extends maintenance time. Therefore, this utility model provides a specialized tool for replacing inverter fan bearings. Utility Model Content

[0004] To address the aforementioned issues, a specialized tool for replacing inverter fan bearings is provided. This tool features a mounting plate on a hammer ring with an adjustable block. By aligning the adjustable block with the bearing edge and striking the hammer ring, bearings of different sizes can be replaced. This solves the problem of traditional bearing replacements requiring different disassembly tools for different bearing sizes, resulting in cumbersome and inefficient operations.

[0005] To address the existing technical problems, this utility model provides a special tool for replacing inverter fan bearings, including a hammer ring, a mounting plate, a rotating cover, several springs, and several adjusting blocks. The mounting plate is mounted on one side of the hammer ring, and a connecting ring is provided along the edge of the mounting plate. A fixing post is provided at the center of the mounting plate, and several limiting cylinders are evenly arranged radially on the outer wall of the fixing post. A limiting rod is provided on one side of each adjusting block, and the limiting rod is confined within the limiting cylinder and can move along the axis of the limiting cylinder. A spring is provided between the adjusting block and the fixing post, and the adjusting block gradually retracts from the end near the mounting plate to the end away from the mounting plate. The rear end of the rotating cover can be screwed onto the connecting ring, and the front end of the rotating cover has a through hole. Several adjusting blocks are confined within the through hole, and screwing the rotating cover can control the adjusting blocks to move closer to or away from the fixing post.

[0006] Preferably, the special tool for replacing the inverter fan bearing further includes a connecting bolt, a connecting cylinder is provided on the side of the mounting plate away from the fixing column, a support ring is provided on the inner ring of the hammer ring, the threaded part of the connecting bolt passes through the inner ring of the hammer ring and is screwed onto the connecting cylinder, and the head of the connecting bolt contacts the support ring.

[0007] Preferably, the spring is constrained on the limiting rod, with one end of the spring contacting the adjusting block and the other end contacting the limiting cylinder.

[0008] Preferably, the mounting plate is provided with a plurality of sliding grooves, and one end of the adjusting block is restricted to move radially along the fixed column in the sliding groove.

[0009] Preferably, the head of the connecting bolt is provided with an installation groove, so that the head of the connecting bolt can be completely inserted into the inner ring of the hammer ring.

[0010] Preferably, the end of the adjustment block furthest from the mounting plate is provided with an anti-slip surface.

[0011] Preferably, the limiting rod is detachably connected to the adjusting block.

[0012] The advantages of this utility model compared to the prior art are:

[0013] 1. By setting a mounting plate and a rotating cover on the hammer ring, and controlling the distance between the adjusting block and the fixed column by turning the rotating cover, the adjusting block can be aligned with bearings of different diameters. The hammer ring is then struck with a hammer to disassemble the bearing. The inverter fan bearing replacement tool provided by this utility model can disassemble bearings of different sizes without the need to change to different sized disassembly tools for different sized bearings. This device is simple to operate and highly adaptable.

[0014] 2. The mounting plate is detachably connected to the hammer ring by connecting bolts, which facilitates the replacement of parts in the device. Attached Figure Description

[0015] Figure 1 This is a disassembly of a special tool for replacing the fan bearing of a frequency converter. Figure 1 .

[0016] Figure 2 This is a disassembly of a special tool for replacing the fan bearing of a frequency converter. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the mounting plate of the special tool for replacing the fan bearing of the frequency converter according to this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the special tool for replacing the fan bearing of the frequency converter (when the rotating cover is connected to the upper end of the connecting ring). Figure 1 .

[0019] Figure 5 This is a schematic diagram of the structure of the special tool for replacing the fan bearing of the frequency converter (when the rotating cover is connected to the lower end of the connecting ring). Figure 2 .

[0020] The following components are labeled in the diagram: hammer ring 1, shelf 10, mounting plate 2, connecting ring 20, fixing post 21, limiting cylinder 22, connecting cylinder 23, slide groove 24, rotating cover 3, through hole 30, spring 4, adjusting block 5, limiting rod 50, connecting bolt 6, and mounting groove 60. Detailed Implementation

[0021] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1-5 As shown, the special tool for replacing the fan bearing of the frequency converter includes a hammer ring 1, a mounting plate 2, a rotating cover 3, several springs 4, and several adjusting blocks 5. The mounting plate 2 is installed on one side of the hammer ring 1. A connecting ring 20 is provided on the edge of the mounting plate 2. A fixing post 21 is provided at the center of the mounting plate 2. Several limiting cylinders 22 are evenly arranged radially on the outer wall of the fixing post 21. A limiting rod 50 is provided on one side of the adjusting block 5. The limiting rod 50 is restricted in the limiting cylinder 22 and can move along the axis of the limiting cylinder 22. Springs 4 are provided between the adjusting block 5 and the fixing post 21. The adjusting block 5 gradually retracts from the end near the mounting plate 2 to the end away from the mounting plate 2. The rear end of the rotating cover 3 can be screwed onto the connecting ring 20. A through hole 30 is provided at the front end of the rotating cover 3. Several adjusting blocks 5 are restricted in the through hole 30. Twisting the rotating cover 3 can control the adjusting blocks 5 to move closer to or away from the fixing post 21.

[0023] In the disassembly of the inverter fan bearing, the adjusting block 5 in the device provided by this utility model is aligned with the edge of the bearing to be disassembled. The distance between the adjusting block 5 and the fixed column 21 is controlled by rotating the rotating cover 3. Because the adjusting block 5 can move radially along the fixed column 21, it is possible to align the adjusting block 5 with bearings of different diameters. The hammer ring 1 is then struck with a hammer to disassemble the bearing. The inverter fan bearing replacement tool provided by this utility model can disassemble bearings of different sizes without the need to change to different sized disassembly tools according to different sized bearings. This device is simple to operate and highly adaptable.

[0024] The special tool for replacing the inverter fan bearing also includes a connecting bolt 6, a connecting cylinder 23 on the side of the mounting plate 2 away from the fixing post 21, a support ring on the inner ring of the hammer ring 1, and the threaded part of the connecting bolt 6 passing through the inner ring of the hammer ring 1 and screwed onto the connecting cylinder 23, with the head of the connecting bolt 6 contacting the support ring. Figure 2 As shown, the mounting plate 2 is connected to the hammer ring 1 by connecting bolts 6. Preferably, a mounting groove 60 is provided at the head of the connecting bolt 6, allowing the head of the connecting bolt 6 to fully enter the inner ring of the hammer ring 1. The mounting groove 60 facilitates the removal of the connecting bolt 6, thereby allowing the mounting plate 2 to be removed. When the connecting bolt 6 fixes the mounting plate 2 to the hammer ring 1, it is preferable that the head of the connecting bolt 6 is fully inserted into the inner ring of the hammer ring 1. This prevents the hammer from hitting the connecting bolt 6 when the hammer ring 1 is struck. It should be noted that the head of the connecting bolt 6 can also fix a rotating handle, which can fully enter the hammer ring 1. When the device needs to be disassembled for maintenance, the operator can use tools or their hands to enter the inner ring of the hammer ring 1 and turn the rotating handle to detach the connecting bolt 6 from the mounting plate 2.

[0025] Spring 4 is restrained on the limiting rod 50, with one end of spring 4 contacting the adjusting block 5 and the other end contacting the limiting cylinder 22. For example... Figure 4 and Figure 5 As shown, after the rotating cover 3 is screwed on, the length of the adjusting block 5 protruding from the through hole 30 changes continuously. When the rotating cover 3 moves down, the spring 4 is compressed due to the shape of the adjusting block 5, and the adjusting block 5 moves towards the fixed post 21. When the rotating cover 3 moves up, the spring 4 has a tendency to return to its original shape, which drives the adjusting block 5 to move radially along the fixed post 21. Thus, by rotating the rotating cover 3, the device can be controlled to disassemble bearings of different sizes.

[0026] The mounting plate 2 is provided with several sliding grooves 24, and one end of the adjusting block 5 is restricted to move radially along the fixed column 21 within the sliding groove 24. The sliding grooves 24 further restrict the movement direction of the adjusting block 5, preventing the adjusting block 5 from deviating when moving radially along the fixed column 21.

[0027] The end of the adjusting block 5 furthest from the mounting plate 2 is provided with an anti-slip surface. The side of the adjusting block 5 that contacts the bearing edge is also provided with an anti-slip surface to prevent the adjusting block 5 from shifting when the block is struck vertically, thereby preventing the device from damaging the bearing.

[0028] The limiting rod 50 is detachably connected to the adjusting block 5. The limiting rod 50 is detachably connected to the adjusting block 5. Since the adjusting block 5 needs to directly contact the edge of the bearing, it is prone to wear due to long-term stress. By removing the connection between the limiting rod 50 and the adjusting block 5, it is convenient to replace the adjusting block 5. Preferably, the limiting rod 50 is connected to the adjusting block 5 by screwing.

[0029] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A special tool for replacing the fan bearing of a frequency converter, characterized in that, The assembly includes a hammer ring (1), a mounting plate (2), a rotating cover (3), several springs (4), and several adjusting blocks (5). The mounting plate (2) is mounted on one side of the hammer ring (1). A connecting ring (20) is provided along the edge of the mounting plate (2). A fixing post (21) is provided at the center of the mounting plate (2). Several limiting cylinders (22) are evenly arranged radially on the outer wall of the fixing post (21). A limiting rod (50) is provided on one side of the adjusting block (5). The limiting rod (50) is confined in the limiting cylinder (22) and can move along the limiting cylinder. (22) The axis moves, and a spring (4) is provided between the adjusting block (5) and the fixed column (21). The adjusting block (5) gradually shrinks from the end near the mounting plate (2) to the end away from the mounting plate (2). The rear end of the rotating cover (3) can be screwed onto the connecting ring (20). The front end of the rotating cover (3) is provided with a through hole (30). Several adjusting blocks (5) are restricted in the through hole (30). Screwing the rotating cover (3) can control the adjusting block (5) to move closer to or away from the fixed column (21).

2. The special tool for replacing the fan bearing of a frequency converter according to claim 1, characterized in that, The special tool for replacing the inverter fan bearing also includes a connecting bolt (6). A connecting cylinder (23) is provided on the side of the mounting plate (2) away from the fixing column (21). A support ring is provided on the inner ring of the hammer ring (1). The screw part of the connecting bolt (6) passes through the inner ring of the hammer ring (1) and is screwed onto the connecting cylinder (23). The head of the connecting bolt (6) contacts the support ring.

3. The special tool for replacing the fan bearing of a frequency converter according to claim 1, characterized in that, The spring (4) is restrained on the limiting rod (50), with one end of the spring (4) contacting the adjusting block (5) and the other end contacting the limiting cylinder (22).

4. The special tool for replacing the fan bearing of a frequency converter according to claim 1, characterized in that, The mounting plate (2) is provided with a plurality of sliding grooves (24), and one end of the adjusting block (5) is restricted to move radially along the fixed column (21) in the sliding groove (24).

5. The special tool for replacing the fan bearing of a frequency converter according to claim 2, characterized in that, The head of the connecting bolt (6) is provided with an installation groove (60), and the head of the connecting bolt (6) can be completely inserted into the inner ring of the hammer ring (1).

6. The special tool for replacing the fan bearing of a frequency converter according to claim 1, characterized in that, The end of the adjustment block (5) away from the mounting plate (2) is provided with an anti-slip surface.

7. The special tool for replacing the fan bearing of a frequency converter according to claim 1, characterized in that, The limiting rod (50) is detachably connected to the adjusting block (5).

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