Horizontal multi-stage pump impeller stabilizing structure

Abstract

The utility model relates to the technical field of horizontal multi-stage pumps, and discloses a horizontal multi-stage pump impeller stabilizing structure which comprises a base, a pump body is installed on the top of the base, a fixing ring is arranged at one end of the pump body in a sleeved mode, two clamping grooves are formed in the outer side of the fixing ring, one end of the pump body is fixedly connected with an end block, and the end block is fixedly connected with an impeller. Two L-shaped grooves are formed in the outer side of the end block, the end block is sleeved with an assembling ring, two first clamping blocks are fixedly connected to the inner side of the assembling ring, two mounting boxes are fixedly connected to the outer side of the assembling ring, sliding plates are slidably connected to the interiors of the mounting boxes, and push plates are fixedly connected to the outer sides of the sliding plates. According to the utility model, the sliding plate is drawn out from the inside of the clamping groove by shifting the two push plates, then the clamping block I is moved to the boundary of the L-shaped groove by rotating the assembly ring, and then the assembly ring is drawn out from the outside of the end block, so that the limitation on the fixed ring is contacted, and the disassembly mode can save a lot of time.

Description

Technical Field

[0001] The utility model relates to the technical field of horizontal multi-stage pumps, in particular to a stable structure for the impeller of a horizontal multi-stage pump. Background Art

[0002] A horizontal multi-stage pump is a centrifugal pump with multiple impellers. Its main feature is that the pump body is installed horizontally. A horizontal multi-stage pump usually consists of components such as an inlet section, a middle section, an outlet section, an impeller, a diffuser, a shaft, a seal, and bearings. Its working principle is that the motor drives the shaft to rotate, thereby causing the impeller to rotate at high speed, generating centrifugal force, sucking the liquid from the inlet, and discharging it from the outlet after being pressurized by each stage of the impeller.

[0003] In the prior art, multiple bolts are generally used for fastening at the end of the horizontal multi-stage pump. When disassembling and overhauling the pump body, it will take a lot of extra time and is rather troublesome. Moreover, the impeller is sleeved outside the rotating shaft and is clamped with the rotating shaft. After long-term use, the accuracy becomes poor and it is prone to eccentricity and instability. Therefore, those skilled in the art have proposed a stable structure for the impeller of a horizontal multi-stage pump to solve the above problems. Summary of the Invention

[0004] In order to make up for the above deficiencies, the utility model provides a stable structure for the impeller of a horizontal multi-stage pump, aiming to improve the problems that in the prior art, multiple bolts are generally used for fastening at the end of the horizontal multi-stage pump, which will take a lot of extra time and is rather troublesome when disassembling and overhauling the pump body, and the impeller is sleeved outside the rotating shaft and is clamped with the rotating shaft, and the accuracy becomes poor and it is prone to eccentricity and instability after long-term use.

[0005] To achieve the above object, the utility model provides the following technical solution: A stable structure for the impeller of a horizontal multi-stage pump, including a base, a pump body is installed on the top of the base, a fixing ring is sleeved at one end of the pump body, two clamping grooves are opened on the outer side of the fixing ring, a end head block is fixedly connected to one end of the pump body, two L-shaped grooves are opened on the outer side of the end head block, an assembly ring is sleeved outside the end head block, two first clamping blocks are fixedly connected to the inner side of the assembly ring, two mounting boxes are fixedly connected to the outer side of the assembly ring, a sliding plate is slidably connected inside the mounting box, a pushing plate is fixedly connected to the outer side of the sliding plate, a spring is fixedly connected to the inner wall of the mounting box, and one end of the spring is fixedly connected to one side of the sliding plate. A stabilizing component is arranged inside the pump body, and the stabilizing component is used to stabilize the operation of the internal parts of the pump body.

[0006] Furthermore, the stabilizing component includes an inner core, one end of the inner core is rotatably connected to the inner wall of the pump body, a shaft sleeve is sleeved outside the inner core, an impeller one is sleeved outside the shaft sleeve, and an assembly ring is sleeved outside the shaft sleeve.

[0007] Furthermore, a notch groove 1 is provided on the outer side of the shaft sleeve, and a clamping block 2 is fixedly connected to one side of the impeller 1.

[0008] Furthermore, the outside of the second clamping block is engaged with the inner side of the first notch groove, and a plug hole is provided inside the assembly ring.

[0009] Furthermore, the outer portion of the inner core is provided with an impeller 2, and the outer sides of the impeller 2 and the impeller 1 are fixedly connected with plug blocks.

[0010] Furthermore, the exteriors of the two inserting blocks are engaged with the interior of the inserting holes, the exterior of the inner core is sleeved with a separation plate, and both exterior sides of the separation plate are fixedly connected with limiting columns.

[0011] Furthermore, the outer sleeve of the inner core is provided with an impeller three, the outer sides of the impellers two and three are provided with a notch groove two, and the outer side of the limiting column is engaged with the inner side of the notch groove two.

[0012] Furthermore, the outer side of the first clamping block is slidably connected to the inner side of the L-shaped groove, and the outer side of the sliding plate is engaged with the inner side of the clamping groove.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the sliding plate is pulled out from the inside of the card slot by toggling the two push plates, and then the assembly ring is rotated to move the card block 1 to the boundary of the L-shaped slot, and then the assembly ring is pulled out from the outside of the end block, thus contacting the restriction on the fixed ring. This disassembly method can save a lot of time, and during assembly, the card block 1 can be aligned with the L-shaped slot and slid in, the sliding plate contacts the side of the fixed ring and shrinks, and when the assembly ring is rotated to make the card block 1 snap into the inner side of the L-shaped slot, the spring inside the push plate will pop out the sliding plate, and quickly snap into the inside of the card slot to complete the installation.

[0015] 2. In the utility model, the clamping block 2 is clamped inside the notch groove 1, so that the impeller 1 and the shaft sleeve form a whole. Under the connection of the assembly ring, the plug blocks on the outer sides of the impellers 1 and 2 are inserted into the insertion hole, and then the two limit columns are clamped on the inner side of the notch groove 2, so that the impellers 1, 2 and 3 form a whole, and are driven by the inner core under the connection of the shaft sleeve, which can avoid the situation of clamping wear, eliminate the occurrence of eccentricity, and make the overall impeller structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a horizontal multi-stage pump impeller stability structure proposed by the utility model;

[0017] Figure 2 A schematic diagram of the assembly ring structure of a horizontal multi-stage pump impeller stabilization structure proposed by the utility model;

[0018] Figure 3 Schematic diagram of the shaft sleeve structure of a stable structure of an impeller of a horizontal multi-stage pump proposed by the present utility model;

[0019] Figure 4 Schematic diagram of the partition plate structure of a stable structure of an impeller of a horizontal multi-stage pump proposed by the present utility model.

[0020] Legend:

[0021] 1. Base; 2. Pump body; 3. Fixed ring; 4. Card slot; 5. End block; 6. L-shaped groove; 7. Assembly ring; 8. First clamping block; 9. Installation box; 10. Sliding plate; 11. Pushing plate; 12. Inner core; 13. Shaft sleeve; 14. First notch groove; 15. First impeller; 16. Second clamping block; 17. Assembly ring; 18. Insertion hole; 19. Second impeller; 20. Insert block; 21. Partition plate; 22. Limit post; 23. Third impeller; 24. Second notch groove. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Refer to Figures 1 - 3The utility model provides an embodiment: a horizontal multi-stage pump impeller stabilizing structure, including a base 1, a pump body 2 is installed on the top of the base 1, one end of the pump body 2 is sleeved with a fixing ring 3, the outer side of the fixing ring 3 is provided with two card slots 4, one end of the pump body 2 is fixedly connected with an end block 5, the outer side of the end block 5 is provided with two L-shaped grooves 6, the outer side of the end block 5 is sleeved with an assembly ring 7, the inner side of the assembly ring 7 is fixedly connected with two card blocks 8, the outer side of the assembly ring 7 is fixedly connected with two installation boxes 9, the interior of the installation box 9 is slidably connected with a sliding plate 10, the outer side of the sliding plate 10 is fixedly connected with a push plate 11, the inner wall of the installation box 9 is fixedly connected with a spring, and one end of the spring is fixedly connected to one side of the sliding plate 10, a stabilizing component is arranged inside the pump body 2, and the stabilizing component is used to stabilize the operation of the internal parts of the pump body 2, and the two push plates 11 are moved, and the sliding plate 10 connected thereto will gradually move from the card slot 4 The inside of the end block 5 is pulled out, and the assembly ring 7 is rotated so that the block 8 can be smoothly moved to the boundary of the L-shaped groove 6. When the block 8 reaches the boundary, the assembly ring 7 is continued to be pulled out from the outside of the end block 5. Through such a series of operations, the restriction on the fixing ring 3 is successfully released. This disassembly method has significant advantages, can save a lot of time, and avoids the cumbersome steps and time-consuming operations that may occur in the traditional complex disassembly process.

[0024] When assembling, there is also a set of simple and efficient methods. First, align the block 8 with the L-shaped groove 6, and then gently push the assembly ring 7 so that the block 8 can slide smoothly into the L-shaped groove 6. In this process, it is necessary to ensure the alignment accuracy of the block 8 and the L-shaped groove 6 to avoid the situation where the block cannot slide smoothly. When the block 8 begins to slide into the L-shaped groove 6, the sliding plate 10 will contact the side of the fixed ring 3. Due to the ingenuity of the design, the sliding plate 10 will automatically shrink when it contacts the side of the fixed ring 3. When the assembly ring 7 continues to be rotated so that the block 8 is stuck in the inner side of the L-shaped groove 6, the spring inside the push plate 11 will play its elastic role and quickly pop out the sliding plate 10. After popping out, the sliding plate 10 will quickly snap into the inside of the slot 4, thereby completing the entire installation process. This installation method is not only easy to operate, but also can complete the assembly in a short time, greatly improving work efficiency.

[0025] Reference Figures 2 - 4, the stabilizing component includes an inner core 12. One end of the inner core 12 is rotatably connected to the inner wall of the pump body 2. An axial center sleeve 13 is sleeved outside the inner core 12. An impeller one 15 is sleeved outside the axial center sleeve 13. An assembly ring 17 is sleeved outside the axial center sleeve 13. A notch groove one 14 is formed on the outer side of the axial center sleeve 13. A second clamping block 16 is fixedly connected to one side of the impeller one 15. The outside of the second clamping block 16 is clamped inside the notch groove one 14. A jack 18 is formed inside the assembly ring 17. An impeller two 19 is sleeved outside the inner core 12. Insert blocks 20 are fixedly connected to the outer sides of both the impeller two 19 and the impeller one 15. The outside of the two insert blocks 20 is clamped inside the jack 18. A partition plate 21 is sleeved outside the inner core 12. Limit posts 22 are fixedly connected to both sides of the outside of the partition plate 21. An impeller three 23 is sleeved outside the inner core 12. Notch grooves two 24 are formed on the outer sides of both the impeller two 19 and the impeller three 23. The outside of the limit posts 22 is clamped inside the notch grooves two 24. The outside of the first clamping block 8 is slidably connected to the inside of the L-shaped groove 6. The outside of the sliding plate 10 is clamped inside the clamping groove 4. The second clamping block 16 is clamped inside the notch groove one 14, so that the impeller one 15 and the axial center sleeve 13 form an integral body. Under the connection of the assembly ring 17, the insert blocks 20 on the outer sides of the impeller one 15 and the impeller two 19 penetrate into the jack 18. Then the two limit posts 22 are clamped inside the notch grooves two 24, so that the impeller one 15, the impeller two 19 and the impeller three 23 form an integral body and are driven by the inner core 12 under the connection of the axial center sleeve 13. The situation of clamping wear can be avoided, and the situation of eccentricity can be eliminated, making the overall impeller structure more stable.

[0026] Working principle: First, toggle the two push plates 11 to pull out the sliding plate 10 from the inside of the clamping groove 4, then rotate the assembly ring 7 to move the first clamping block 8 to the boundary of the L-shaped groove 6, and then pull out the assembly ring 7 from the outside of the end block 5. In this way, the restriction on the fixed ring 3 is released. This disassembly method can save a lot of time. And during assembly, the first clamping block 8 can be aligned with the L-shaped groove 6 and slid in. The sliding plate 10 contacts the side of the fixed ring 3 and contracts. When the first clamping block 8 is clamped into the inside of the L-shaped groove 6 by rotating the assembly ring 7, the spring inside the push plate 11 will pop out the sliding plate 10 and quickly clamp it inside the clamping groove 4 to complete the installation. In addition, the second clamping block 16 is clamped inside the notch groove one 14, so that the impeller one 15 and the axial center sleeve 13 form an integral body. Under the connection of the assembly ring 17, the insert blocks 20 on the outer sides of the impeller one 15 and the impeller two 19 penetrate into the jack 18. Then the two limit posts 22 are clamped inside the notch grooves two 24, so that the impeller one 15, the impeller two 19 and the impeller three 23 form an integral body and are driven by the inner core 12 under the connection of the axial center sleeve 13. The situation of clamping wear can be avoided, and the situation of eccentricity can be eliminated, making the overall impeller structure more stable.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stable structure for the impeller of a horizontal multi-stage pump, comprising a base (1), characterized in that: The top of the base (1) is equipped with a pump body (2). One end of the pump body (2) is sleeved with a fixing ring (3). Two clamping grooves (4) are arranged on the outer side of the fixing ring (3). One end of the pump body (2) is fixedly connected with an end block (5). Two L-shaped grooves (6) are arranged on the outer side of the end block (5). An assembly ring (7) is sleeved outside the end block (5). Two first clamping blocks (8) are fixedly connected to the inner side of the assembly ring (7). Two mounting boxes (9) are fixedly connected to the outer side of the assembly ring (7). A sliding plate (10) is slidably connected inside the mounting box (9). A push plate (11) is fixedly connected to the outer side of the sliding plate (10). A spring is fixedly connected to the inner wall of the mounting box (9), and one end of the spring is fixedly connected to one side of the sliding plate (10). A stabilizing component is arranged inside the pump body (2), and the stabilizing component is used to stabilize the operation of the internal parts of the pump body (2).

2. The stable structure of the impeller of a horizontal multi-stage pump according to claim 1, wherein: The stabilizing component includes an inner core (12). One end of the inner core (12) is rotatably connected to the inner wall of the pump body (2). An axial center sleeve (13) is sleeved outside the inner core (12). An impeller one (15) is sleeved outside the axial center sleeve (13). An assembly ring (17) is sleeved outside the axial center sleeve (13).

3. A stable structure of a horizontal multi-stage pump impeller according to claim 2, characterized in that: A notch groove one (14) is arranged on the outer side of the axial center sleeve (13). A second clamping block (16) is fixedly connected to one side of the impeller one (15).

4. A stable structure of a horizontal multi-stage pump impeller according to claim 3, characterized in that: The outer side of the second clamping block (16) is clamped inside the notch groove one (14). A jack (18) is arranged inside the assembly ring (17).

5. A stable structure of a horizontal multi-stage pump impeller according to claim 2, characterized in that: An impeller two (19) is sleeved outside the inner core (12). Plug blocks (20) are fixedly connected to the outer sides of both the impeller two (19) and the impeller one (15).

6. The stable structure of the impeller of a horizontal multi-stage pump according to claim 5, characterized in that: The outer sides of the two plug blocks (20) are clamped inside the jack (18). A partition plate (21) is sleeved outside the inner core (12). Limit posts (22) are fixedly connected to both sides of the outer side of the partition plate (21).

7. The stable structure of the impeller of a horizontal multi-stage pump according to claim 6, characterized in that: An impeller three (23) is sleeved outside the inner core (12). Notch grooves two (24) are arranged on the outer sides of both the impeller two (19) and the impeller three (23). The outer sides of the limit posts (22) are clamped inside the notch grooves two (24).

8. A stable structure of a horizontal multi-stage pump impeller according to claim 1, characterized in that: The outer side of the first clamping block (8) is slidably connected to the inner side of the L-shaped groove (6). The outer side of the sliding plate (10) is clamped inside the clamping groove (4).

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