A tool for replacing motor side bearings

Abstract

This utility model discloses a tool for replacing motor side bearings, including a double-acting lead screw, a lead screw sleeve, a sliding long rod, and a locking block. Rotating the handle in the middle of the double-acting lead screw causes the lead screw sleeve to move relative to it. The length of the sliding long rod can be adjusted by turning the positioning screw. The locking block is located at both ends of the outer side of the bearing. Continuing to rotate the double-acting lead screw causes the locking block to clamp the bearing. The threaded rod is screwed into the double-acting lead screw. A wrench can be inserted to facilitate the rotation of the threaded rod. After the bottom of the threaded rod contacts the shaft, the bearing is pulled out from the shaft. This tool is adapted to bearings of different sizes through a double-acting linkage structure, eliminating the need for complete disassembly of the motor, improving operational efficiency, and effectively avoiding damage to the bearing housing caused by traditional hammering methods. It is particularly suitable for replacing motor side bearings in confined spaces.

Description

Technical Field

[0001] This utility model relates to the field of bearing replacement and installation technology, specifically, to a tool for replacing motor-side bearings. Background Technology

[0002] Bearings are an important component in modern mechanical equipment, supporting the high-speed rotation of shafts and reducing friction generated during movement. However, bearings will eventually wear out and need to be replaced promptly. When replacing a bearing on the motor side, tools are required to remove it.

[0003] Patent CN 217372212 U discloses a tool for facilitating the replacement of side bearings in high-speed shaft wind turbines. The tool includes a limiting tube and a bearing replacement mechanism mounted on the limiting tube. The bearing replacement mechanism comprises a locking component that penetrates the sidewall of the limiting tube and is slidably connected to it; a pushing component located inside the limiting tube that extends the locking component outward by rotation; and a traction component located outside the limiting tube that pulls the locking component backward by rotation. This bearing replacement tool can be directly installed on the inside of the gear and pulled out from the inside without disassembling the gear, shortening the gear removal time, preventing damage to the gear, protecting the gear, and offering high removal efficiency, saving time and effort.

[0004] Existing tools require the construction of temporary supports and the use of jacks to lift the trunnions. The disassembly process involves as many as 15 steps, such as disassembling the gearbox and separating the coupling. Commercial puller tools are limited by the opening size, and the position of the three-jaw jacks needs to be repeatedly adjusted for deeply embedded bearings. Hammering disassembly can easily cause deformation of the bearing housing. Hydraulic tools have the problem of uneven load distribution, and the bearings are damaged due to uneven force.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a tool for replacing the motor side bearing, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A tool for replacing a motor side bearing includes a double-acting lead screw, a lead screw sleeve is helically connected to the outer side of the double-acting lead screw, a fixed short rod is fixedly connected to the bottom end of the lead screw sleeve, a housing is fixedly connected to the bottom end of the fixed short rod, a sliding long rod is slidably connected to the inner side of the housing, a locking block is installed at the bottom end of the sliding long rod, a threaded rod is helically connected to the central inner side of the double-acting lead screw, and a hexagonal prism is fixedly connected to the top of the threaded rod.

[0009] As a further embodiment of this utility model, the bidirectional lead screw is provided with opposite threads, and the opposite threads on the bidirectional lead screw are arranged horizontally and symmetrically.

[0010] As a further embodiment of this utility model, a screw drum is provided on the inner side of the upper handle of the bidirectional screw.

[0011] As a further embodiment of this utility model, a positioning screw is spirally connected to the inner side of the housing, and the end of the positioning screw engages with the sliding rod.

[0012] As a further embodiment of this utility model, a fastening screw is installed on the inner side of the card block, and the fastening screw is screwed to the sliding rod.

[0013] As a further embodiment of this utility model, the fixed short rod is arranged horizontally and symmetrically, and a positioning slide rod is slidably installed on the inner side of the fixed short rod, with a ring at the center of the positioning slide rod.

[0014] As a further embodiment of this invention, a wrench is slidably mounted on the inner side of the hexagonal prism.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention utilizes a bidirectional lead screw, lead screw sleeve, clamping block, and threaded rod. The threaded rod is disengaged from the bidirectional lead screw. Rotating the handle in the middle of the bidirectional lead screw causes the lead screw sleeve to move relative to it. The length of the sliding rod can be adjusted by turning the positioning screw. The clamping blocks are located at both ends of the outer side of the bearing. Continuing to rotate the bidirectional lead screw causes the clamping blocks to clamp the bearing. The threaded rod is screwed onto the bidirectional lead screw. A wrench can be inserted to facilitate the rotation of the threaded rod. After the bottom of the threaded rod contacts the shaft, the bearing is pulled out of the shaft. This device features a simple structure, convenient adjustment, and easy replacement of easily damaged structural parts. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a tool for replacing a motor side bearing according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of a bidirectional lead screw for a tool for replacing a motor side bearing according to an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the installation structure of the threaded rod and hexagonal prism of a tool for replacing a motor side bearing according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the mounting structure of the locking block and sliding rod of a tool for replacing a motor side bearing according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the installation structure of the positioning screw and fastening screw of a tool for replacing a motor side bearing according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Two-way lead screw; 2. Lead screw sleeve; 3. Fixed short rod; 4. Positioning slide rod; 5. Sleeve; 6. Sliding long rod; 7. Clamping block; 8. Positioning screw; 9. Fastening screw; 10. Threaded rod; 11. Hexagonal prism; 12. Wrench. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a tool for replacing the motor side bearing is provided.

[0027] Please refer to the instruction manual appendix. Figure 1-5 According to an embodiment of the present invention, a tool for replacing a motor side bearing includes a bidirectional lead screw 1. A lead screw sleeve 2 is helically connected to the outer side of the bidirectional lead screw 1. A fixed short rod 3 is fixedly connected to the bottom end of the lead screw sleeve 2. A housing 5 is fixedly connected to the bottom end of the fixed short rod 3. A sliding long rod 6 is slidably connected to the inner side of the housing 5. A locking block 7 is installed at the bottom end of the sliding long rod 6. A threaded rod 10 is helically connected to the inner center of the bidirectional lead screw 1. A hexagonal prism 11 is fixedly connected to the top of the threaded rod 10.

[0028] When using this device, the threaded rod 10 is disengaged from the double-acting screw 1. Rotating the handle in the middle of the double-acting screw 1 causes the screw sleeve 2 to move relative to it. The length of the sliding rod 6 can be adjusted by turning the positioning screw 8. The locking blocks 7 are located at both ends of the outer side of the bearing. Continuing to rotate the double-acting screw 1 causes the locking blocks 7 to clamp the bearing. The threaded rod 10 is screwed into the double-acting screw 1. The rotation of the threaded rod 10 can be facilitated by inserting the wrench 12. After the bottom of the threaded rod 10 contacts the shaft, the bearing is pulled out from the shaft.

[0029] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, the bidirectional lead screw 1 is provided with opposite threads, and the opposite threads on the bidirectional lead screw 1 are arranged horizontally and symmetrically.

[0030] The opposing threads on the bidirectional lead screw 1 allow the lead screw sleeves 2 to move closer to or further apart from each other.

[0031] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a screw drum is provided on the inner side of the handle of the bidirectional screw 1.

[0032] This allows the threaded rod 10 to move vertically up and down within the bidirectional screw 1.

[0033] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, the inner side of the housing 5 is spirally connected with a positioning screw 8, and the end of the positioning screw 8 is engaged with the sliding rod 6.

[0034] Tightening the positioning screw 8 allows the sliding rod 6 to adjust its length within the housing 5 and to be positioned accordingly.

[0035] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a fastening screw 9 is installed on the inner side of the card block 7, and the fastening screw 9 is screwed to the sliding rod 6.

[0036] The clip 7 can be replaced by tightening screw 9, allowing the easily worn clip 7 to be replaced.

[0037] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, the fixed short rod 3 is arranged horizontally and symmetrically, and a positioning slide rod 4 is slidably installed on the inner side of the fixed short rod 3, with a ring at the center of the positioning slide rod 4.

[0038] The positioning slide bar 4 keeps the clamping mechanism horizontal, and the central ring ensures that the movement of the threaded rod 10 is not affected.

[0039] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As a further embodiment of this utility model, a wrench 12 is slidably installed on the inner side of the hexagonal prism 11.

[0040] Utilizing the lever principle, it is convenient to manually and quickly tighten the threaded rod. When more force is required, wrench 12 can be pulled out and replaced with a socket wrench for construction.

[0041] When using this device, the threaded rod 10 is disengaged from the double-acting screw 1. Rotating the handle in the middle of the double-acting screw 1 causes the screw sleeve 2 to move relative to it. The length of the sliding rod 6 can be adjusted by turning the positioning screw 8. The locking blocks 7 are located at both ends of the outer side of the bearing. Continuing to rotate the double-acting screw 1 causes the locking blocks 7 to clamp the bearing. The threaded rod 10 is screwed into the double-acting screw 1. The rotation of the threaded rod 10 can be facilitated by inserting the wrench 12. After the bottom of the threaded rod 10 contacts the shaft, the bearing is pulled out from the shaft.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tool for motor-side bearing replacement, comprising a bidirectional screw (1), characterized in that: The outer side of the bidirectional lead screw (1) is helically connected to a lead screw sleeve (2), the bottom end of the lead screw sleeve (2) is fixedly connected to a fixed short rod (3), the bottom end of the fixed short rod (3) is fixedly connected to a housing (5), the inner side of the housing (5) is slidably connected to a sliding long rod (6), the bottom end of the sliding long rod (6) is equipped with a locking block (7), the inner side of the center of the bidirectional lead screw (1) is helically connected to a threaded rod (10), and the top of the threaded rod (10) is fixedly connected to a hexagonal prism (11).

2. A tool for replacing a motor side bearing according to claim 1, characterized in that: The bidirectional lead screw (1) is provided with opposite threads, and the opposite threads on the bidirectional lead screw (1) are arranged horizontally symmetrically.

3. A tool for replacing a motor side bearing according to claim 1, characterized in that: The inner side of the handle of the bidirectional lead screw (1) is provided with a screw drum.

4. A tool for replacing a motor side bearing according to claim 1, characterized in that: The inner side of the casing (5) is spirally connected with a positioning screw (8), and the end of the positioning screw (8) engages with the sliding rod (6).

5. A tool for replacing a motor side bearing according to claim 1, characterized in that: The inner side of the locking block (7) is fitted with a fastening screw (9), which is screwed to the sliding rod (6).

6. The tool for replacing a motor-side bearing according to claim 1, characterized in that: The fixed short rod (3) is arranged horizontally and symmetrically. A positioning slide rod (4) is slidably installed on the inner side of the fixed short rod (3). A ring is provided at the center of the positioning slide rod (4).

7. A tool for replacing a motor side bearing according to claim 1, characterized in that: A wrench (12) is slidably mounted on the inner side of the hexagonal prism (11).

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