Multi-stage shield pump disassembling and assembling device

Abstract

The utility model discloses a multistage shield pump disassembling and assembling device which comprises two oppositely-arranged clamping units, the two clamping units are both connected with knocking units, the ends of the two clamping units are both connected with connecting assemblies, a gap is formed between the ends of the two clamping units, and a disassembling and assembling assembly is clamped in the gap. The device is simple in structure and easy and convenient to disassemble and assemble, the steel nails are not directly knocked in the disassembly and assembly process by clamping the guide vane, the steel nails are evenly stressed, external threads and counter bores of the guide vane cannot be damaged, the overhaul time can be effectively shortened, the pump shaft is not prone to deformation, compared with a traditional disassembly and assembly mode, the disassembly and assembly time can be greatly shortened through the device, and the disassembly and assembly efficiency is improved. The downtime of equipment is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary maintenance equipment for synthetic rubber catalyst conveying devices, specifically involving a multi-stage shielded pump disassembly and assembly device. Background Technology

[0002] Multistage canned motor pumps are widely used in various industries such as chemical, petroleum, and power. Due to their advantages such as leak-free operation and stable performance, they play a vital role in conveying flammable, explosive, toxic, hazardous, and valuable liquids. The most common type of multistage canned motor pump on the market is the 16-stage canned motor pump. This pump has a complex structure; the guide vanes are connected by fine threads, and the outer side of the guide vanes has φ10 countersunk holes for disassembly and assembly. However, the disassembly and assembly work presents many challenges during the daily maintenance and repair of multistage canned motor pumps. Furthermore, most manufacturers do not provide dedicated disassembly and assembly tools with their products, significantly increasing the difficulty for maintenance personnel.

[0003] Furthermore, existing disassembly and assembly tools lack versatility. Multistage canned motor pumps have complex structures, and different models and specifications of pumps vary in the size and shape of their components. Existing disassembly and assembly tools are often only applicable to specific types of pumps and cannot meet diverse needs. When dealing with different models of multistage canned motor pumps, frequent replacement or customization of specialized tools is required, which not only increases equipment maintenance costs but also extends maintenance cycles and affects the continuity of production.

[0004] Currently, in various factories, a common method for equipment maintenance is to embed a hard rod inside the guide vane and strike it with a copper rod in the opposite direction of the thread. This method is not only inefficient and time-consuming (approximately 18-22 hours for the copper rod and guide vane removal), but it also damages the countersunk hole on the outside of the guide vane. During the next maintenance, the guide vane cannot be properly removed due to the damage to the countersunk hole, affecting its normal use and causing many inconveniences for maintenance. Furthermore, some canned motor pumps have a shaft diameter of only 20mm and a length of 1400mm, making the pump shaft prone to deformation and damage during disassembly, increasing maintenance costs and extending the maintenance cycle. Utility Model Content

[0005] The purpose of this invention is to provide a disassembly and assembly device for multi-stage canned pumps, which solves the problem in the prior art where the guide vanes of a canned pump are damaged during disassembly, resulting in the guide vanes being unable to function properly.

[0006] The technical solution adopted by this utility model is a multi-stage shielded pump disassembly and assembly device, which includes two clamping units arranged opposite to each other. Both clamping units are connected to a striking unit, and both ends of the two clamping units are connected to a connecting component. A gap is provided between the ends of the two clamping units, and the disassembly and assembly component is clamped in the gap.

[0007] The features of this utility model also include:

[0008] The clamping unit includes a semi-circular clamping ring, a striking unit connected to the side of the clamping ring, and two connecting components. Both connecting components are connected to the side of the clamping ring and are respectively located near the two ends of the clamping ring. The disassembly and assembly components are clamped in the gaps at the corresponding ends of the two clamping rings.

[0009] The width of each clamping ring is set to 20mm.

[0010] The inner wall of each clamping ring is decorated with patterns along its circumference.

[0011] The striking unit includes striking blocks connected to the outer side wall of the clamping ring. The number of striking blocks is set to two, and the two striking blocks are evenly connected to the side wall of the clamping ring.

[0012] The connecting assembly includes two support frames, which are respectively located near the two ends of the clamping ring and are connected to the side wall of the clamping ring.

[0013] The two clamping rings have support frames at their ends facing each other, and bolts connect the two opposing support frames. Two nuts are connected to the bolts, and the two opposing support frames are positioned between the two nuts.

[0014] A washer is placed between the nut and the support frame.

[0015] The assembly / disassembly assembly includes steel nails, which are clamped in the gap between the corresponding ends of the two clamping rings.

[0016] The beneficial effects of this utility model are:

[0017] This utility model's multi-stage canned pump disassembly and assembly device has a simple structure and a convenient disassembly and assembly process. By clamping the guide vane, the disassembly and assembly process does not involve directly striking the steel nails, and the steel nails are subjected to uniform force, which will not damage the outer threads and countersunk holes of the guide vane. It can effectively shorten the maintenance time, and the pump shaft is not easily deformed. Compared with the traditional disassembly and assembly method, the use of this device can greatly shorten the disassembly and assembly time, reduce equipment downtime, and improve production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the multi-stage shielded pump disassembly and assembly device of this utility model;

[0019] Figure 2 This is a side view of the multi-stage shielded pump disassembly and assembly device of this utility model;

[0020] Figure 3 This is a schematic diagram of the guide vane structure in the multi-stage shielded pump disassembly and assembly device of this utility model.

[0021] In the diagram, 1. clamping ring, 2. striking block, 3. support frame, 4. bolt, 5. nut, 6. washer, 7. gap, 8. guide vane, 9. countersunk hole. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will now be described in conjunction with the accompanying drawings.

[0023] This utility model provides a multi-stage shielded pump disassembly and assembly device, such as... Figure 1-2 As shown, the device includes two opposing clamping units, each connected to a striking unit. A connecting assembly is attached to the ends of both clamping units, and a gap 7 is provided between the ends of the two clamping units. A disassembly / removal assembly is held within the gap 7. During disassembly, the clamping units clamp the guide vane 8, and the disassembly / removal assembly is inserted into the countersunk hole 9 of the guide vane 8. The disassembly / removal assembly is then clamped by tightening the connecting assembly, ensuring even force distribution. The striking unit is then gently tapped until the guide vane thread rotates. The tapping is stopped, and the guide vane 8 is manually rotated off. This process is repeated to remove the remaining guide vanes 8.

[0024] Example 1

[0025] The multi-stage shielded pump disassembly and assembly device includes two clamping units arranged opposite each other. Both clamping units are connected to a striking unit. The ends of the two clamping units are connected to a connecting component. A gap 7 is provided between the ends of the two clamping units, and the disassembly and assembly component is clamped in the gap 7.

[0026] The clamping unit includes a semi-circular clamping ring 1, a striking unit connected to the side of the clamping ring 1, and two connecting components, each connected to the side of the clamping ring 1. The two connecting components are respectively positioned near the two ends of the clamping ring 1. The disassembly / assembly components are clamped within the gaps 7 at the corresponding ends of the two clamping rings 1. The clamping ring 1 is designed as a semi-circular structure, and the two clamping rings 1 are connected as a whole by the connecting components, allowing the guide vane 8 to be clamped within the two clamping rings 1.

[0027] Example 2

[0028] The multi-stage shielded pump disassembly and assembly device includes two clamping units arranged opposite each other. Both clamping units are connected to a striking unit. The ends of the two clamping units are connected to a connecting component. A gap 7 is provided between the ends of the two clamping units, and the disassembly and assembly component is clamped in the gap 7.

[0029] The clamping unit includes a semi-circular clamping ring 1, a striking unit connected to the side of the clamping ring 1, and two connecting components. Both connecting components are connected to the side of the clamping ring 1 and are respectively located near the two ends of the clamping ring 1. The disassembly and assembly components are clamped in the gaps 7 at the corresponding ends of the two clamping rings 1.

[0030] The width of each clamping ring 1 is set to 20mm. The clamping ring 1 is set to 20mm to match the size of the guide vane 8 and ensure that the guide vane 8 can be completely clamped.

[0031] The inner wall of each clamping ring 1 is patterned along its circumference. The patterned inner wall of the clamping ring 1 increases the friction between it and the surface of the guide vane 8, preventing the clamping ring 1 from sliding on the surface of the guide vane 8 during the striking process.

[0032] Example 3

[0033] The multi-stage shielded pump disassembly and assembly device includes two clamping units arranged opposite each other. Both clamping units are connected to a striking unit. The ends of the two clamping units are connected to a connecting component. A gap 7 is provided between the ends of the two clamping units, and the disassembly and assembly component is clamped in the gap 7.

[0034] The clamping unit includes a semi-circular clamping ring 1, a striking unit connected to the side of the clamping ring 1, and two connecting components. Both connecting components are connected to the side of the clamping ring 1 and are respectively located near the two ends of the clamping ring 1. The disassembly and assembly components are clamped in the gaps 7 at the corresponding ends of the two clamping rings 1.

[0035] The width of each clamping ring 1 is set to 20mm.

[0036] The inner wall of each clamping ring 1 is decorated with patterns along its circumference.

[0037] The striking unit includes striking blocks 2, which are connected to the outer wall of the clamping ring 1. Two striking blocks 2 are evenly connected to the side wall of the clamping ring 1. Compared to the traditional method of directly striking the steel nail, striking the striking blocks 2 avoids nail breakage. The two striking blocks 2 allow for selection of the closest striking block 2 to strike based on the actual position of the countersunk hole 9 during operation.

[0038] Example 4

[0039] The multi-stage shielded pump disassembly and assembly device includes two clamping units arranged opposite each other. Both clamping units are connected to a striking unit. The ends of the two clamping units are connected to a connecting component. A gap 7 is provided between the ends of the two clamping units, and the disassembly and assembly component is clamped in the gap 7.

[0040] The clamping unit includes a semi-circular clamping ring 1, a striking unit connected to the side of the clamping ring 1, and two connecting components. Both connecting components are connected to the side of the clamping ring 1 and are respectively located near the two ends of the clamping ring 1. The disassembly and assembly components are clamped in the gaps 7 at the corresponding ends of the two clamping rings 1.

[0041] The width of each clamping ring 1 is set to 20mm.

[0042] The inner wall of each clamping ring 1 is decorated with patterns along its circumference.

[0043] The striking unit includes striking blocks 2, which are connected to the outer side wall of the clamping ring 1. The number of striking blocks 2 is set to two, and the two striking blocks 2 are evenly connected to the side wall of the clamping ring 1.

[0044] The connecting assembly includes two support frames 3, which are respectively located near the two ends of the clamping ring 1 and are connected to the side wall of the clamping ring 1. The support frames 3 serve as supporting components of the connecting assembly, and each support frame 3 has a through hole in its middle to facilitate the passage of bolts.

[0045] Example 5

[0046] The multi-stage shielded pump disassembly and assembly device includes two clamping units arranged opposite each other. Both clamping units are connected to a striking unit. The ends of the two clamping units are connected to a connecting component. A gap 7 is provided between the ends of the two clamping units, and the disassembly and assembly component is clamped in the gap 7.

[0047] The clamping unit includes a semi-circular clamping ring 1, a striking unit connected to the side of the clamping ring 1, and two connecting components. Both connecting components are connected to the side of the clamping ring 1 and are respectively located near the two ends of the clamping ring 1. The disassembly and assembly components are clamped in the gaps 7 at the corresponding ends of the two clamping rings 1.

[0048] The width of each clamping ring 1 is set to 20mm.

[0049] The inner wall of each clamping ring 1 is decorated with patterns along its circumference.

[0050] The striking unit includes striking blocks 2, which are connected to the outer side wall of the clamping ring 1. The number of striking blocks 2 is set to two, and the two striking blocks 2 are evenly connected to the side wall of the clamping ring 1.

[0051] The connecting assembly includes a support frame 3, and the number of support frames 3 is set to two. The two support frames 3 are respectively located near the two ends of the clamping ring 1, and both support frames 3 are connected to the side wall of the clamping ring 1.

[0052] The support frames 3 at both ends of the two clamping rings 1 are arranged opposite each other, and a bolt 4 is connected between the two opposite support frames 3. Two nuts 5 are connected to the bolt 4, and the two opposite support frames 3 are positioned between the two nuts 5. By tightening the nuts 5, the distance between the opposite support frames 3 is reduced, thereby reducing the gap 7 between the two clamping rings 1, ensuring that the disassembly component can be clamped.

[0053] Example 6

[0054] The multi-stage shielded pump disassembly and assembly device includes two clamping units arranged opposite each other. Both clamping units are connected to a striking unit. The ends of the two clamping units are connected to a connecting component. A gap 7 is provided between the ends of the two clamping units, and the disassembly and assembly component is clamped in the gap 7.

[0055] The clamping unit includes a semi-circular clamping ring 1, a striking unit connected to the side of the clamping ring 1, and two connecting components. Both connecting components are connected to the side of the clamping ring 1 and are respectively located near the two ends of the clamping ring 1. The disassembly and assembly components are clamped in the gaps 7 at the corresponding ends of the two clamping rings 1.

[0056] The width of each clamping ring 1 is set to 20mm.

[0057] The inner wall of each clamping ring 1 is decorated with patterns along its circumference.

[0058] The striking unit includes striking blocks 2, which are connected to the outer side wall of the clamping ring 1. The number of striking blocks 2 is set to two, and the two striking blocks 2 are evenly connected to the side wall of the clamping ring 1.

[0059] The connecting assembly includes a support frame 3, and the number of support frames 3 is set to two. The two support frames 3 are respectively located near the two ends of the clamping ring 1, and both support frames 3 are connected to the side wall of the clamping ring 1.

[0060] The support frames 3 at both ends of the two clamping rings 1 are arranged opposite each other, and the two opposite support frames 3 are connected by bolts 4. Two nuts 5 are connected to the bolts 4, and the two opposite support frames 3 are arranged between the two nuts 5.

[0061] A washer 6 is provided between the nut 5 and the support frame 3. The washer 6 is provided to prevent damage to the support frame 3.

[0062] Example 7

[0063] The multi-stage shielded pump disassembly and assembly device includes two clamping units arranged opposite each other. Both clamping units are connected to a striking unit. The ends of the two clamping units are connected to a connecting component. A gap 7 is provided between the ends of the two clamping units, and the disassembly and assembly component is clamped in the gap 7.

[0064] The clamping unit includes a semi-circular clamping ring 1, a striking unit connected to the side of the clamping ring 1, and two connecting components. Both connecting components are connected to the side of the clamping ring 1 and are respectively located near the two ends of the clamping ring 1. The disassembly and assembly components are clamped in the gaps 7 at the corresponding ends of the two clamping rings 1.

[0065] The width of each clamping ring 1 is set to 20mm.

[0066] The inner wall of each clamping ring 1 is decorated with patterns along its circumference.

[0067] The striking unit includes striking blocks 2, which are connected to the outer side wall of the clamping ring 1. The number of striking blocks 2 is set to two, and the two striking blocks 2 are evenly connected to the side wall of the clamping ring 1.

[0068] The connecting assembly includes a support frame 3, and the number of support frames 3 is set to two. The two support frames 3 are respectively located near the two ends of the clamping ring 1, and both support frames 3 are connected to the side wall of the clamping ring 1.

[0069] The support frames 3 at both ends of the two clamping rings 1 are arranged opposite each other, and the two opposite support frames 3 are connected by bolts 4. Two nuts 5 are connected to the bolts 4, and the two opposite support frames 3 are arranged between the two nuts 5.

[0070] A washer 6 is provided between the nut 5 and the support frame 3.

[0071] The disassembly and assembly components include steel nails, which are clamped in the gap 7 between the corresponding ends of the two clamping rings 1. When the striking block 2 is struck, force is applied through the steel nails in the countersunk hole 9, thereby disassembling and assembling the guide vane 8.

[0072] The working principle of the multi-stage shielded pump disassembly and assembly device of this utility model is as follows:

[0073] During disassembly, place the clamping ring 1 tightly against the outer diameter of the guide vane 8, aligning the joint of the two clamping rings 1 with one of the countersunk holes 9 of the guide vane 8. Insert the steel nail into the countersunk hole 9, and tighten both ends of the clamping ring 1 with M20 bolts 4 through the support frame 3 using a wrench. This ensures the steel nail is pressed firmly and evenly, preventing it from loosening or breaking. When hammering, do not use excessive force. Once the threads of the guide vane 8 have rotated, stop hammering and manually rotate to remove the guide vane 8. Repeat the above steps to remove the remaining guide vanes 8.

[0074] When the equipment is repaired and the guide vane 8 is installed, first tighten the guide vane 8 by hand. Using the same installation method, place the clamping ring 1 tightly against the outer diameter of the guide vane 8. Align the joint of the two clamping rings 1 with one of the countersunk holes 9 of the guide vane 8. Place the steel nail into the countersunk hole 9. Use M20 bolts 4 to pass through the support frame 3 at both ends of the semicircle and tighten them with a wrench to press and compact the steel nail. Similarly, make the steel nail evenly stressed. Gently tap the tapping block to tighten the guide vane.

[0075] This utility model's multi-stage canned pump disassembly and assembly device has a simple structure and a convenient disassembly and assembly process. By clamping the guide vane, the disassembly and assembly process does not involve directly striking the steel nails, and the steel nails are subjected to uniform force, which will not damage the outer threads and countersunk holes of the guide vane. It can effectively shorten the maintenance time, and the pump shaft is not easily deformed. Compared with the traditional disassembly and assembly method, the use of this device can greatly shorten the disassembly and assembly time, reduce equipment downtime, and improve production efficiency.

Claims

1. A multi-stage shielded pump disassembly and assembly device, characterized in that, It includes two clamping units arranged opposite each other, each clamping unit is connected to a striking unit, each clamping unit is connected to a connecting component at its end, and a gap (7) is provided between the ends of the two clamping units, with a disassembly and assembly component clamped in the gap (7).

2. The multi-stage shielded pump disassembly and assembly device according to claim 1, characterized in that, The clamping unit includes a semi-circular clamping ring (1), the striking unit is connected to the side of the clamping ring (1), and the connecting components are set to two, both of which are connected to the side of the clamping ring (1). The two connecting components are respectively set close to the two ends of the clamping ring (1), and the disassembly and assembly components are clamped in the gap (7) at the corresponding ends of the two clamping rings (1).

3. The multi-stage shielded pump disassembly and assembly device according to claim 2, characterized in that, The width of each clamping ring (1) is set to 20 mm.

4. The multi-stage shielded pump disassembly and assembly device according to claim 2, characterized in that, The inner wall of each clamping ring (1) is provided with a pattern along its circumference.

5. The multi-stage shielded pump disassembly and assembly device according to claim 2, characterized in that, The striking unit includes striking blocks (2), which are connected to the outer side wall of the clamping ring (1). The number of striking blocks (2) is set to two, and the two striking blocks (2) are evenly connected to the side wall of the clamping ring (1).

6. The multi-stage shielded pump disassembly and assembly device according to claim 2, characterized in that, The connecting assembly includes a support frame (3), and the number of the support frames (3) is set to two. The two support frames (3) are respectively located near the two ends of the clamping ring (1), and both support frames (3) are connected to the side wall of the clamping ring (1).

7. The multi-stage shielded pump disassembly and assembly device according to claim 6, characterized in that, The two clamping rings (1) have support frames (3) at both ends arranged opposite to each other. A bolt (4) is connected between the two opposite support frames (3). Two nuts (5) are connected to the bolt (4). The two opposite support frames (3) are arranged between the two nuts (5).

8. The multi-stage shielded pump disassembly and assembly device according to claim 7, characterized in that, A washer (6) is provided between the nut (5) and the support frame (3).

9. The multi-stage shielded pump disassembly and assembly device according to claim 2, characterized in that, The disassembly assembly includes steel nails, which are clamped in the gap (7) between the corresponding ends of the two clamping rings (1).

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