High-capacity double suction pump impeller

Abstract

The utility model discloses a high-capacity double-suction pump impeller, and relates to the field of double-suction pump impellers, the high-capacity double-suction pump impeller comprises a water inlet end, an impeller shaft is arranged in the water inlet end, an impeller body is fixedly mounted at the bottom of the water inlet end, a partition plate and a sheet body are fixedly mounted on the impeller body, and a clamping mechanism is arranged on the impeller shaft. The clamping mechanism comprises a plurality of mounting openings formed in the impeller shaft, and corresponding mounting blocks are arranged in the mounting openings. By rotating the nut and rotating the nut down, the positioning and mounting of the connecting column can be relieved, and the connecting column can be detached, so that the positioning and mounting of the mounting block can be relieved, and the impeller blade can be detached and replaced according to the corresponding damaged impeller blade, so that the maintenance strength and the use cost can be reduced; and the nut can be further reinforced and fixed through the reinforcing plate, so that the phenomena of loosening and the like of the nut can be prevented, and the stability during use is improved.

Description

Technical Field

[0001] This application relates to the field of double-suction pump impellers, and more particularly to a large-capacity double-suction pump impeller. Background Technology

[0002] Double-suction pumps, as an important type of centrifugal pump, are widely used in engineering due to their high head and large flow rate. A large-capacity double-suction pump impeller consists of two impellers placed back-to-back. Each impeller draws liquid in from both sides, and the liquid then flows into a common volute.

[0003] In traditional double-suction pumps, the impeller blades and impeller shaft are usually fixed together as a single unit. As a result, the impeller blades will wear out after long-term use. Therefore, when replacing the impeller blades, it is often necessary to disassemble and replace the entire impeller, which increases the difficulty of later maintenance and the cost of use. Utility Model Content

[0004] To reduce maintenance intensity and operating costs, this application provides a large-capacity double-suction pump impeller.

[0005] The impeller of a large-capacity double-suction pump provided in this application adopts the following technical solution: a large-capacity double-suction pump impeller includes an inlet end, an impeller shaft is provided inside the inlet end, an impeller body is fixedly installed at the bottom of the inlet end, a partition plate and a plate are fixedly installed on the impeller body, and a snap-fit ​​mechanism is provided on the impeller shaft;

[0006] The snap-fit ​​mechanism includes multiple mounting ports on the impeller shaft, each mounting port having a corresponding mounting block, and each mounting block having a corresponding impeller blade fixedly mounted on its outer side. Each mounting port has a first mounting hole, and each mounting block has a second mounting hole extending through it. Both the first and second mounting holes have the same connecting post, and the exposed surface of the connecting post has a thread, on which a nut is screwed.

[0007] By adopting the above technical solution, the positioning installation of the connecting column can be released by rotating the nut and removing it, and the connecting column can be disassembled. This releases the positioning installation of the mounting block, allowing for the removal and replacement of the corresponding damaged impeller blades. Therefore, maintenance intensity and operating costs can be reduced.

[0008] Preferably, the nut is located inside the mounting opening and is arranged parallel to the mounting opening.

[0009] By adopting the above technical solution, and with the nut located inside the mounting opening, there will be no movement interference.

[0010] Preferably, a reinforcing plate is provided inside the mounting opening, and the reinforcing plate is in contact with the nut.

[0011] By adopting the above technical solution and setting up a reinforcing plate, the nut can be positioned and installed.

[0012] Preferably, a fixing plate is fixedly installed on the top of the reinforcing plate, and corresponding telescopic rods are fixedly installed on the opposite sides of the two fixing plates. Each of the two telescopic rods is fitted with a corresponding telescopic spring, and a corresponding sliding plate is fixedly installed on the telescopic end of each of the two telescopic rods.

[0013] By adopting the above technical solution and setting a telescopic spring, an automatic reset function can be achieved.

[0014] Preferably, two positioning grooves are symmetrically formed in the mounting opening, and a corresponding positioning block is slidably installed in each of the two positioning grooves. Both positioning blocks are fixedly connected to the corresponding sliding plate.

[0015] By adopting the above technical solution, positioning grooves and positioning blocks can be set to achieve the purpose of positioning and installation, thereby further enhancing the stability after positioning and installation.

[0016] Preferably, each of the two sliding plates is fixedly installed with a corresponding pull rod on the side that is far apart from each other, and each of the two pull rods is provided with an anti-slip pad.

[0017] By adopting the above technical solution and setting up anti-slip mats, the friction can be increased.

[0018] Preferably, the top of the reinforcing plate has two symmetrically arranged limiting grooves, and each limiting groove has a corresponding limiting block slidably installed in it, and each limiting block is fixedly connected to the corresponding sliding plate.

[0019] By adopting the above technical solution, the installation can be assisted by setting limit grooves and limit blocks.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application utilizes a connecting column and the like. By rotating the nut and removing it, the positioning and installation of the connecting column can be released, and the connecting column can be disassembled. This releases the positioning and installation of the mounting block, allowing for the removal and replacement of the corresponding damaged impeller blades. This reduces maintenance intensity and operating costs. The reinforcing plate further strengthens and secures the nut, preventing it from loosening and improving stability during use.

[0022] 2. This application employs the cooperative action of pull rods, etc. By pulling two pull rods closer to each other, the two pull rods will also drive the two sliding plates to move closer to each other, and compress the corresponding telescopic rods and telescopic springs. At this time, the two positioning blocks will disengage from the corresponding positioning grooves, and the positioning installation of the reinforcing plate can be released, thus completing the overall disassembly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a large-capacity double-suction pump impeller according to an embodiment of this application;

[0024] Figure 2 This is a partial unfolded schematic diagram illustrating the impeller shaft structure, which is the main feature of this application embodiment;

[0025] Figure 3 This is a partial unfolded schematic diagram illustrating the main installation port structure in the embodiments of this application;

[0026] Figure 4 This is a schematic diagram illustrating the snap-fit ​​structure, which is the main feature of this application's embodiments.

[0027] Figure 5 This is a partial unfolded schematic diagram illustrating the main embodiment of the reinforcement structure in this application;

[0028] Reference numerals in the attached drawings: 1. Inlet end; 2. Impeller shaft; 3. Impeller blade; 4. Impeller body; 5. Divider plate; 6. Blade body; 7. Mounting port; 8. Mounting block; 9. First mounting hole; 10. Positioning groove; 11. Positioning block; 12. Second mounting hole; 13. Connecting column; 14. Thread; 15. Nut; 16. Fixing plate; 17. Reinforcing plate; 18. Sliding plate; 19. Tie rod; 20. Telescopic rod; 21. Telescopic spring; 22. Limiting groove; 23. Limiting block. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0030] This application discloses a large-capacity double-suction pump impeller.

[0031] Reference Figure 1-3 A large-capacity double-suction pump impeller includes an inlet end 1, an impeller shaft 2 disposed in the inlet end 1, an impeller body 4 fixedly installed at the bottom of the inlet end 1, and a partition plate 5 and a plate 6 fixedly installed on the impeller body 4, a snap-fit ​​mechanism disposed on the impeller shaft 2, and a reinforcing mechanism disposed on the snap-fit ​​mechanism.

[0032] The snap-fit ​​mechanism includes multiple mounting ports 7 on the impeller shaft 2, each mounting port 7 having a corresponding mounting block 8, each mounting block 8 having a corresponding impeller blade 3 fixedly mounted on its outer side, a first mounting hole 9 in the mounting port 7, a second mounting hole 12 through the mounting block 8, and the same connecting post 13 in both the first mounting hole 9 and the second mounting hole 12, a thread 14 on the exposed surface of the connecting post 13, a nut 15 screwed onto the thread 14, and the nut 15 being located in the mounting port 7 and parallel to the mounting port 7.

[0033] In use, by rotating the nut 15 and turning it off, the positioning installation of the connecting column 13 can be released, and the connecting column 13 can be removed. This releases the positioning installation of the mounting block 8, allowing for the removal and replacement of the corresponding damaged impeller blade 3. This reduces maintenance intensity and operating costs.

[0034] Reference Figure 3-5 The reinforcement mechanism includes a reinforcement plate 17 set in the installation port 7, the reinforcement plate 17 being in contact with the nut 15, a fixing plate 16 fixedly installed on the top of the reinforcement plate 17, and corresponding telescopic rods 20 fixedly installed on the opposite sides of the two fixing plates 16, corresponding telescopic springs 21 sleeved on the two telescopic rods 20, and corresponding sliding plates 18 fixedly installed on the telescopic ends of the two telescopic rods 20, two symmetrical positioning grooves 10 opened in the installation port 7, corresponding positioning blocks 11 slidably installed in the two positioning grooves 10, and both positioning blocks 11 being fixedly connected to the corresponding sliding plates 18, corresponding pull rods 19 fixedly installed on the opposite sides of the two sliding plates 18, and both pull rods 19 being provided with anti-slip pads, two limiting grooves 22 opened on the top of the reinforcement plate 17, and corresponding limiting blocks 23 slidably installed in the two limiting grooves 22, and both limiting blocks 23 being fixedly connected to the corresponding sliding plates 18.

[0035] In use, by pulling the two levers 19 closer together, the two levers 19 will also move the two sliding plates 18 closer together, compressing the corresponding telescopic rods 20 and telescopic springs 21. At this time, the two positioning blocks 11 will disengage from the corresponding positioning grooves 10, and the positioning installation of the reinforcing plate 17 can be released, thus completing the overall disassembly. The reinforcing plate 17 can further reinforce and fix the nut 15, thus preventing the nut 15 from loosening and improving the stability during use.

[0036] The implementation principle of a large-capacity double-suction pump impeller in this application embodiment is as follows: When in use, centrifugal force is first generated by high-speed rotation, and liquid is sucked in through the water inlet 1. Then, the impeller is accelerated by internal impeller shaft 2, impeller blades 3 and impeller body 4 and other components. At the same time, the symmetrical design is used to improve the stability and efficiency of operation, thereby achieving a large capacity effect.

[0037] When it is necessary to disassemble and replace the impeller blade 3, first pull the two pull rods 19 closer to each other. The two pull rods 19 will move closer to each other and drive the two sliding plates 18 to move closer to each other as well, and compress the corresponding telescopic rod 20 and telescopic spring 21. At this time, the two positioning blocks 11 will disengage from the corresponding positioning groove 10 and the positioning installation of the reinforcing plate 17 can be released, so the overall disassembly can be completed.

[0038] By rotating the nut 15 and removing it, the positioning installation of the connecting column 13 can be released, and the connecting column 13 can be disassembled. This allows the positioning installation of the mounting block 8 to be released, and the damaged impeller blade 3 can then be disassembled and replaced. This reduces maintenance intensity and operating costs. The reinforcing plate 17 further strengthens and fixes the nut 15, preventing it from loosening and improving stability during use.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A large-capacity double-suction pump impeller, comprising an inlet end (1), characterized in that: An impeller shaft (2) is provided inside the water inlet (1), an impeller body (4) is fixedly installed at the bottom of the water inlet (1), a partition plate (5) and a plate (6) are fixedly installed on the impeller body (4), and a snap-fit ​​mechanism is provided on the impeller shaft (2). The snap-fit ​​mechanism includes multiple mounting ports (7) on the impeller shaft (2), each mounting port (7) is provided with a corresponding mounting block (8), and each mounting block (8) is fixedly mounted with a corresponding impeller blade (3) on its outer side. A first mounting hole (9) is provided in the mounting port (7), and a second mounting hole (12) is provided through the mounting block (8). The same connecting post (13) is provided in both the first mounting hole (9) and the second mounting hole (12). A thread (14) is provided on the exposed surface of the connecting post (13), and a nut (15) is screwed onto the thread (14).

2. The impeller of a large-capacity double-suction pump according to claim 1, characterized in that: The nut (15) is located inside the mounting port (7) and is set parallel to the mounting port (7).

3. The impeller of a large-capacity double-suction pump according to claim 1, characterized in that: The mounting port (7) is provided with a reinforcing plate (17), which is in contact with the nut (15).

4. The impeller of a large-capacity double-suction pump according to claim 3, characterized in that: A fixing plate (16) is fixedly installed on the top of the reinforcing plate (17). A corresponding telescopic rod (20) is fixedly installed on the side of the two fixing plates (16) that are far apart from each other. A corresponding telescopic spring (21) is sleeved on each of the two telescopic rods (20). A corresponding sliding plate (18) is fixedly installed on the telescopic end of each of the two telescopic rods (20).

5. The impeller of a large-capacity double-suction pump according to claim 4, characterized in that: Two positioning slots (10) are symmetrically opened in the installation port (7). A corresponding positioning block (11) is slidably installed in each of the two positioning slots (10). The two positioning blocks (11) are fixedly connected to the corresponding sliding plate (18).

6. The impeller of a large-capacity double-suction pump according to claim 4, characterized in that: Each of the two sliding plates (18) is fixedly installed with a corresponding pull rod (19) on the side away from each other, and each of the two pull rods (19) is provided with an anti-slip pad.

7. The impeller of a large-capacity double-suction pump according to claim 4, characterized in that: The top of the reinforcing plate (17) has two symmetrically arranged limiting grooves (22), and each limiting groove (22) has a corresponding limiting block (23) slidably installed in it. Each limiting block (23) is fixedly connected to the corresponding sliding plate (18).

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