A special tool for disassembling and assembling high-voltage cable junction boxes for seawater pump motors

Abstract

This utility model relates to the field of seawater pump motor maintenance technology, specifically to a special tooling for disassembling and assembling high-voltage cable junction boxes for seawater pump motors. It includes a seawater pump, with symmetrically mounted lifting lugs on the outside of the pump. A cable junction box is installed between the lifting lugs, and fixing blocks are fixedly mounted on both outer walls of the cable junction box. A shaped block is movably connected to one side of each lifting lug. A support frame is connected to the top of the shaped block via a rotating shaft. A lifting plate is connected to the top of the support frame via a rotating shaft. A rotating block is installed at the bottom of the lifting plate, and a mounting frame is installed at the lower end of the rotating block. A pulley is installed inside the mounting frame via a rotating shaft. By fixing the support frame to the lifting lug hole of the seawater pump motor, and connecting one end of a steel wire rope to the high-voltage cable junction box of the seawater pump motor, the angle of the steel wire rope is adjusted via the rotating block towards the pulley. By rotating the self-locking ratchet-structured wheel and axle handle mechanism, the position of the high-voltage cable junction box of the seawater pump motor is changed by winding and unwinding the steel wire rope.

Description

Technical Field

[0001] This utility model relates to the field of seawater pump motor maintenance technology, specifically to a special tool for disassembling and assembling high-voltage cable junction boxes for seawater pump motors. Background Technology

[0002] Seawater pumps are suitable for fire fighting, equipment cooling, and seawater desalination on offshore platforms. They can also be used for heating in ground source heat pump air conditioning in coastal areas, for all seawater lifting purposes, for seaside square fountain landscapes, and for mariculture. This equipment is low in noise, highly efficient, and saves energy.

[0003] The seawater pumps at the receiving station are 1600kW vertical high-voltage motors, installed at a height of about 4 meters. There is no maintenance platform. Every time the seawater pump or motor is moved for maintenance, the high-voltage cable must be removed and reinstalled. Because the high-voltage cable is thick, it is difficult to directly disconnect and remove it from the junction box due to the limitations of the junction box and cable tray. Each time the cable is moved, the cable must be removed and the junction box must be removed as a whole. When reinstalling, it is also necessary to reinstall and adjust it as a whole. Because the motor junction box is large and heavy, and the cable itself has great weight and bending stress, the operation is difficult and requires 6 people to work together. In addition, the work point is high, and there is interference from surrounding pipelines and cable trays. The work area is complex and narrow, and the safety risks are high. Utility Model Content

[0004] To address the aforementioned issues, a specialized tooling for disassembling and assembling high-voltage cable junction boxes for seawater pump motors is provided. This tooling involves fixing a support frame to the lifting lug of the seawater pump motor, connecting one end of a steel wire rope to the high-voltage cable junction box, and adjusting the angle of the steel wire rope via a rotating block towards a pulley. By rotating the self-locking ratchet mechanism, the position of the high-voltage cable junction box can be changed by retracting the steel wire rope. The ratchet locking block below the self-locking ratchet mechanism can achieve locking and unlocking effects by adjusting its own direction.

[0005] To address the existing technical problems, this utility model provides a special tooling for disassembling and assembling high-voltage cable junction boxes for seawater pump motors. The tooling includes a seawater pump, with lifting lugs symmetrically installed on the outside of the pump. A cable junction box is installed between the lifting lugs, and fixing blocks are fixedly installed on both outer walls of the cable junction box. A shaped block is movably connected to one side of each lifting lug. A support frame is connected to the top of the shaped block via a pivot, and a lifting plate is connected to the top of the support frame via a pivot. A rotating block is installed at the bottom of the lifting plate, and an mounting frame is installed at the lower end of the rotating block. A pulley is installed inside the mounting frame via a pivot, and a steel wire rope is sleeved on the outside of the pulley. Multiple lifting ropes are fixedly connected to one end of each steel wire rope, and a lifting frame is fixedly installed at one end of each lifting rope.

[0006] Preferably, a limiting shaft is fixedly installed on the outer wall of the irregular block, and a limiting hole adapted to the limiting shaft is opened inside the lifting lug.

[0007] Preferably, a rotating shaft is mounted on the outer wall of the support frame via a pivot, a ratchet is fixedly mounted on the outside of the rotating shaft, and one end of a steel wire rope is fixedly connected to the outer wall of the rotating shaft.

[0008] Preferably, the outer wall of the support frame is equipped with a self-locking block that works in conjunction with a ratchet via a rotating shaft.

[0009] Preferably, a manual crank is fixedly mounted on the outside of the rotating shaft.

[0010] Preferably, the inside of the hanging frame is provided with a through hole for installing the pull rod, a connecting plate is fixedly installed at the bottom of the pull rod, a spring is sleeved on the outside of the pull rod, one end of the spring is fixedly connected to the outside of the pull rod, and the other end of the spring is fixedly connected to the hanging frame.

[0011] Preferably, a plurality of positioning rods are fixedly installed on the bottom of the connecting plate.

[0012] Preferably, the fixing block has a positioning hole inside that matches the positioning rod.

[0013] The advantages of this utility model compared to the prior art are:

[0014] 1. By fixing the support frame to the lifting lug hole of the seawater pump motor, one end of the steel wire rope is connected to the high-voltage cable junction box of the seawater pump motor. The angle of the steel wire rope is adjusted by rotating the pulley through the rotating block. By rotating the wheel axle handle mechanism of the self-locking ratchet structure, the position of the high-voltage cable junction box of the seawater pump motor is changed by winding and unwinding the steel wire rope.

[0015] 2. By pulling the lever, the connecting plate and positioning plate can be moved, making it easy to install the hanging frame on the fixed block on the side wall of the cable junction box, facilitating quick connection of the cable junction box. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a special tool for disassembling and assembling high-voltage cable junction boxes for seawater pump motors.

[0017] Figure 2 This is a partial structural diagram of a special tool for disassembling and assembling high-voltage cable junction boxes for seawater pump motors.

[0018] Figure 3 This is a structural diagram of a support frame used in a special tooling for disassembling and assembling high-voltage cable junction boxes for seawater pump motors.

[0019] Figure 4This is a structural diagram of a lifting frame used in a special tooling for disassembling and assembling high-voltage cable junction boxes for seawater pump motors.

[0020] Figure 5 yes Figure 2 A magnified structural diagram of point A in the middle.

[0021] The following are the labels in the diagram: 1. Seawater pump; 2. Cable junction box; 3. Lifting lug; 4. Irregular block; 5. Support frame; 6. Steel wire rope; 7. Hanging plate; 8. Hanging frame; 9. Rotating block; 10. Mounting bracket; 11. Pulley; 12. Limiting shaft; 13. Lifting rope; 14. Pull rod; 15. Spring; 16. Connecting plate; 17. Positioning rod; 18. Ratchet; 19. Self-locking block; 20. Manual crank; 21. Rotating shaft; 22. Fixing block. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 5 As shown, this utility model provides:

[0024] A special tooling for disassembling and assembling high-voltage cable junction boxes for seawater pump motors includes a seawater pump 1. Lifting lugs 3 are symmetrically installed on the outside of the seawater pump 1. A cable junction box 2 is installed between the lifting lugs 3. Fixing blocks 22 are fixedly installed on both outer walls of the cable junction box 2. A shaped block 4 is movably connected to one side of the lifting lugs 3. A support frame 5 is connected to the top of the shaped block 4 via a pivot. A hanging plate 7 is connected to the top of the support frame 5 via a pivot. A rotating block 9 is installed at the bottom of the hanging plate 7. An installation frame 10 is installed at the lower end of the rotating block 9. A pulley 11 is installed inside the installation frame 10 via a pivot. A steel wire rope 6 is sleeved on the outside of the pulley 11. Multiple lifting ropes 13 are fixedly connected to one end of the steel wire rope 6. A lifting frame 8 is fixedly installed at one end of each lifting rope 13.

[0025] By fixing the support frame 5 to the lifting lug 3 of the seawater pump 1 motor, and connecting one end of the steel wire rope 6 to the high-voltage cable junction box 2 of the seawater pump 1 motor, the angle of the steel wire rope 6 is adjusted by the rotating block 9 towards the pulley 11. The manual crank 20 drives the rotating shaft 21 to rotate, which in turn drives the ratchet 18 to rotate. This allows the steel wire rope 6 to be raised and lowered, achieving the purpose of changing the position of the high-voltage cable junction box 2 of the seawater pump 1 motor.

[0026] like Figure 3 As shown, a limiting shaft 12 is fixedly installed on the outer wall of the irregular block 4, and a limiting hole adapted to the limiting shaft 12 is opened inside the lifting lug 3.

[0027] By inserting two limiting shafts 12 into the limiting holes, the support frame 5 will not shift its position during operation.

[0028] like Figure 5 As shown, a rotating shaft 21 is mounted on the outer wall of the support frame 5 via a rotating shaft. A ratchet 18 is fixedly mounted on the outside of the rotating shaft 21, and one end of a steel wire rope 6 is fixedly connected to the outer wall of the rotating shaft 21.

[0029] The position of the cable junction box 2 can be easily changed using the steel wire rope 6.

[0030] like Figure 5 As shown, the outer wall of the support frame 5 is equipped with a self-locking block 19 that works in conjunction with the ratchet 18 via a pivot.

[0031] The self-locking block 19 can be used to prevent the ratchet 18 from reversing.

[0032] like Figure 5 As shown, a manual crank 20 is fixedly mounted on the outside of the rotating shaft 21.

[0033] The rotating shaft 21 can be easily rotated by manually cranking the handle 20.

[0034] like Figure 4 As shown, the inside of the hanging frame 8 has a through hole for installing the tie rod 14. A connecting plate 16 is fixedly installed at the bottom of the tie rod 14. A spring 15 is sleeved on the outside of the tie rod 14. One end of the spring 15 is fixedly connected to the outside of the tie rod 14, and the other end of the spring 15 is fixedly connected to the hanging frame 8.

[0035] The pull rod 14 works in conjunction with the connecting plate 16 and the spring 15 to conveniently limit the fixed block 22 and prevent the cable junction box 2 from falling off when it is moved.

[0036] like Figure 4 As shown, multiple positioning rods 17 are fixedly installed on the bottom of the connecting plate 16.

[0037] The positioning rod 17 makes the connection between the hanging frame 8 and the cable junction box 2 more stable.

[0038] like Figure 2 As shown, the fixing block 22 has a positioning hole inside that matches the positioning rod 17.

[0039] The positioning hole facilitates the connection between the positioning rod 17 and the cable junction box 2.

[0040] The above embodiments merely illustrate one or several implementation methods of the special tooling for disassembling and assembling high-voltage cable junction boxes for seawater pump motors according to this utility model. While the descriptions are relatively specific and detailed, 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 tool for disassembling and assembling a high-voltage cable terminal box of a seawater pump motor, characterized in that, The system includes a seawater pump (1), on which lifting lugs (3) are symmetrically installed. A cable junction box (2) is installed between the lifting lugs (3). Fixing blocks (22) are fixedly installed on both sides of the outer wall of the cable junction box (2). A shaped block (4) is movably connected to one side of the lifting lug (3). A support frame (5) is connected to the top of the shaped block (4) through a rotating shaft. A hanging plate (7) is connected to the top of the support frame (5) through a rotating shaft. A rotating block (9) is installed at the bottom of the hanging plate (7). An installation frame (10) is installed at the lower end of the rotating block (9). A pulley (11) is installed inside the installation frame (10) through a rotating shaft. A wire rope (6) is sleeved on the outside of the pulley (11). A plurality of hanging ropes (13) are fixedly connected to one end of the wire rope (6). A hanging frame (8) is fixedly installed at one end of the hanging rope (13).

2. The tool for dismounting and mounting the high-voltage cable terminal box of a seawater pump motor according to claim 1, characterized in that, The outer wall of the irregular block (4) is fixedly installed with a limiting shaft (12), and the inside of the lifting lug (3) is provided with a limiting hole that matches the limiting shaft (12).

3. The tool for dismounting and mounting the high-voltage cable joint box of a seawater pump motor according to claim 1, characterized in that, The outer wall of the support frame (5) is equipped with a rotating shaft (21) via a rotating shaft. A ratchet (18) is fixedly installed on the outside of the rotating shaft (21). One end of a steel wire rope (6) is fixedly connected to the outer wall of the rotating shaft (21).

4. A special tooling for disassembling and assembling high-voltage cable junction boxes for seawater pump motors according to claim 1, characterized in that, The outer wall of the support frame (5) is equipped with a self-locking block (19) that works in conjunction with a ratchet (18) via a rotating shaft.

5. A special tooling for disassembling and assembling a high-voltage cable junction box for a seawater pump motor according to claim 3, characterized in that, A manual crank (20) is fixedly mounted on the outside of the rotating shaft (21).

6. A special tooling for disassembling and assembling high-voltage cable junction boxes for seawater pump motors according to claim 1, characterized in that, The inside of the hanging frame (8) is provided with a through hole for installing the pull rod (14). A connecting plate (16) is fixedly installed at the bottom of the pull rod (14). A spring (15) is sleeved on the outside of the pull rod (14). One end of the spring (15) is fixedly connected to the outside of the pull rod (14), and the other end of the spring (15) is fixedly connected to the hanging frame (8).

7. A special tooling for disassembling and assembling a high-voltage cable junction box for a seawater pump motor according to claim 6, characterized in that, Multiple positioning rods (17) are fixedly installed on the bottom of the connecting plate (16).

8. A special tooling for disassembling and assembling a high-voltage cable junction box for a seawater pump motor according to claim 7, characterized in that, The fixing block (22) has a positioning hole inside that matches the positioning rod (17).

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