Novel portable and durable motor rotor bearing dismounting tool

Abstract

The utility model relates to the technical field of equipment maintenance tools, in particular to a novel portable durable motor rotor bearing dismounting tool which comprises a cylinder and a T-shaped lead screw, the T-shaped lead screw is arranged on the center line of the cylinder, the upper end of the T-shaped lead screw is in threaded connection with an upper cover of the cylinder through a nut, and the lower end of the T-shaped lead screw is in threaded connection with the upper cover of the cylinder. The middle of the T-shaped wire is in threaded connection with a center balance force rod, and the two ends of the center balance force rod penetrate through the cylinder to extend. Fixing plates are arranged on the two sides of the lower end of the cylinder respectively and connected with an n-shaped plate through nuts, and a groove is formed in the middle of the n-shaped plate. The device is convenient to carry, light, fast and flexible to use, and suitable for a light operation mode which can be operated by 1-2 persons.

Description

Technical Field

[0001] This utility model relates to the field of equipment maintenance tools, specifically to a new type of convenient, lightweight, and durable electric motor rotor bearing disassembly tool. Background Technology

[0002] Bearings are essential basic components of various mechanical equipment. Their precision, performance, lifespan, and reliability play a decisive role in the precision, performance, lifespan, and reliability of the host machine. Bearings are installed on rotating shafts to support them, reduce the coefficient of friction during shaft movement, and ensure rotational accuracy. After prolonged use, bearings need to be removed from the shaft for maintenance or replacement.

[0003] Currently, most bearing disassembly tools use traditional pullers. However, the fixed end of this tool cannot be fixed in a confined space due to the triangular claw at the bottom, making it impossible to perform the operation and causing many inconveniences during use. Utility Model Content

[0004] The present invention aims to solve the above problems by providing a new type of convenient, lightweight and durable electric motor rotor bearing disassembly tool.

[0005] This utility model is achieved through the following technical solution: A novel convenient, lightweight, and durable electric motor rotor bearing disassembly tool, characterized in that it includes a cylinder and a T-shaped lead screw, the T-shaped lead screw is set on the center line of the cylinder, the upper end of the T-shaped lead screw is threadedly connected to the upper cover of the cylinder by a nut, the middle part of the T-shaped lead screw is threadedly connected to a central balance rod, and the two ends of the central balance rod extend through the cylinder respectively; the lower end of the cylinder is provided with fixing plates on both sides, the fixing plates are connected to an n-shaped plate by nuts, and the n-shaped plate has a groove in the middle.

[0006] Furthermore, the top two ends of the T-shaped lead screw are respectively provided with extension sleeves, which are adjustablely fixed to both ends of the T-shaped lead screw by adjusting bolts.

[0007] Furthermore, the n-type plate can be made of various n-type plates with different groove sizes, and the groove is fitted onto the outer ring of the bearing inside the motor rotor bearing.

[0008] Furthermore, the lower end of the T-shaped lead screw is tapered, and the lower end of the T-shaped lead screw abuts against the center of the motor rotor shaft.

[0009] The advantages of this utility model are: it is easy to carry, lightweight and quick to use, and suitable for operation by 1-2 people.

[0010] This invention's n-type plate can be replaced with different sizes to meet various needs, increasing the flexibility and versatility of maintenance. By adding a central balancing rod in the middle, this invention improves the workpiece's robustness and stability during maintenance. The cylindrical cover is connected to the T-shaped lead screw via a nut, effectively preventing the T-shaped lead screw from deviating from its center and ensuring its balance and perpendicularity with the central nut. By adding two sets of sleeve-type extended sleeves at both ends of the T-shaped lead screw, this invention increases the rotational force during rotation, achieving sufficient power to rotate the lead screw and thus enabling the maintenance and disassembly of the bearing. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a front view schematic diagram of the present invention;

[0013] Figure 3 This is a top view of the present invention;

[0014] Figure 4 for Figure 3 Schematic diagram of the AA section;

[0015] In the attached diagram, 1 is a T-type lead screw, 2 is a cylinder, 3 is an extended sleeve rod, 4 is an adjusting bolt, 5 is a nut, 6 is a central balance rod, 7 is a fixing plate, 8 is an n-type plate, 801 is a groove, and 9 is a nut. Detailed Implementation

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solutions of this utility model are further explained below in conjunction with the embodiments.

[0017] like Figures 1 to 4 As shown, a novel convenient, lightweight, and durable electric motor rotor bearing disassembly tool includes a cylinder 2 and a T-shaped lead screw 1. The T-shaped lead screw 1 is positioned on the center line of the cylinder 2. Extended sleeves 3 are provided at both ends of the top of the T-shaped lead screw 1, and the extended sleeves 3 are adjustablely fixed to both ends of the T-shaped lead screw 1 via adjusting bolts 4. The upper end of the T-shaped lead screw 1 is threadedly connected to the upper cover of the cylinder 2 via nuts 5. A central balance rod 6 is threadedly connected to the middle of the T-shaped lead screw 1. Both ends of the central balance rod extend through the cylinder 2. The lower end of the T-shaped lead screw 1 is conical and abuts against the center of the motor rotor shaft. Fixing plates 7 are provided on both sides of the lower end of the cylinder 2. The fixing plates 7 are connected to an n-shaped plate 8 via nuts 9. The n-shaped plate 8 has a groove 801 in its middle. Various n-shaped plates 8 with different groove 801 sizes can be used. The groove 801 is engaged with the outer ring of the bearing inside the motor rotor bearing.

[0018] In practical use, the groove 801 of the n-type plate 8 is inserted into the outer ring of the bearing inside the motor rotor bearing, so that the bottom center of the T-type lead screw 1 is against the center of the motor rotor shaft. After fixing the position, when the T-type lead screw 1 is rotated, pressure is applied to the bearing shaft by rotating the T-type lead screw 1. Under the action of pressure and tension, the bearing will be slowly pulled up. When the sleeve-type extended sleeve 3 and the T-type lead screw 1 are rotated continuously, the bearing will be quickly pulled up by the downward pressure of the T-type lead screw 1. If the bearing is too old, or if the bearing and shaft are rusty, after spraying rust remover or soaking it with an appropriate amount of diesel oil, the extended sleeve 3 can be used to apply force to the bearing shaft, so that the bearing can be removed quickly, thereby achieving the purpose of disassembling and repairing the bearing.

[0019] The n-shaped plate 8 at the bottom of cylinder 2 can be replaced with various n-shaped plates 8 of different groove sizes 801 by tightening bolts and nuts 9. The purpose is to enable the disassembly and repair of bearings of different models for various sizes of motors, improving the flexibility and speed of disassembly and installation.

[0020] The central balancing rod 6 has four welding points. Two of these points are welded to the cylinder 2, and the other two are welded to both sides of the central nut 9, which is threadedly connected to the T-shaped lead screw 1. The purpose of the central balancing rod 6 is to balance the T-shaped lead screw 1, stabilize the force, and increase pressure and support. It prevents excessive force from deforming the middle of the T-shaped lead screw 1. During operation, the central balancing rod 6 can also act as a handle to stabilize the working surface, preventing the tool from tilting due to uneven force distribution. This helps to balance the workpiece.

[0021] The nut 5 on the top cover of cylinder 2 passes through the lead screw and is threadedly connected to it. It is also the first stress point for the workpiece to perform work, receiving force through the T-shaped lead screw 1 to achieve a pressurizing effect. If the bearing still cannot be disassembled under the action of the T-shaped lead screw 1, it indicates that the bearing shaft is not under sufficient force. In this case, an extension sleeve 3 can be used, and the extension sleeves 3 on both sides can be firmly fixed with adjusting bolts 4 to prevent them from falling off due to excessive force. This ensures safe and reliable operation and serves as a safety control and protection mechanism. It improves the safety performance of the operation, thereby enabling safe disassembly, maintenance, and repair of the equipment.

[0022] This tool can be easily fixed inside the bearing for operation. In particular, it allows for rotational force application via the T-screw 1, and the extended sleeve 3 provides additional force for disassembly. The disassembly process is highly safe, as multiple connection points are welded.

[0023] This process further enhances the robustness and durability of the workpiece. Moreover, it minimizes the risk of damage to the various components of the repair part, making it more flexible and versatile in use. This further highlights the practicality of the workpiece during the repair process.

[0024] Apart from the technical features described in the specification, all other technical features are known to those skilled in the art.

Claims

1. A novel, convenient, lightweight, and durable tool for disassembling electric motor rotor bearings, characterized in that... The cylinder (2) and the T-shaped screw (1) are included. The T-shaped screw (1) is set on the center line of the cylinder (2). The upper end of the T-shaped screw (1) is threadedly connected to the upper cover of the cylinder (2) by a nut (5). The middle part of the T-shaped screw is threadedly connected to the central balance rod (6). The two ends of the central balance rod extend through the cylinder (2). The lower end of the cylinder (2) is provided with fixing plates (7) on both sides. The fixing plates (7) are connected to the n-shaped plate (8) by nuts (9). The n-shaped plate (8) is provided with a groove (801) in the middle.

2. The novel portable, lightweight, and durable electric motor rotor bearing disassembly tool according to claim 1, characterized in that, The top two ends of the T-shaped lead screw (1) are respectively provided with extension sleeves (3), which are fixed to the two ends of the T-shaped lead screw (1) by adjusting bolts (4).

3. A new type of portable, light-duty, and durable motor rotor bearing dismounting tool according to claim 1, characterized in that, The n-type plate (8) can be made of various different groove (801) sizes. The groove (801) is attached to the outer ring of the bearing inside the motor rotor bearing.

4. A new type of portable, light-duty, and durable motor rotor bearing dismounting tool according to claim 1, characterized in that, The lower end of the T-shaped lead screw (1) is cone-shaped and abuts the center of the motor rotor shaft.

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