Movable axial flow pump assembly with sliding rail

Abstract

The utility model discloses a movable axial flow pump assembly with a sliding rail, which solves the problems caused by the fact that a shaft in the prior art is fixed in place and cannot move, and comprises the sliding rail, an axial flow pump and the shaft, the axial flow pump and the shaft are integrally arranged, and a first mounting flange and a second mounting flange are respectively arranged at two ends of the shaft. The first mounting flange is used for shaft mounting, the axial flow pump comprises a motor and a pump body, the motor is located on the inner side of the shaft, the pump body is located on the outer side of the motor, a third mounting flange is arranged at the end, connected with the motor, of the pump body, the second mounting flange and the third mounting flange are in butt joint and fixed through a fastener, and a pulley is arranged on the outer side of the shaft. The sliding rail is laid in a mounting area, and the axial flow pump and the shaft move to the mounting position together through cooperation of the sliding wheels and the sliding rail.

Description

[Technical Field]

[0001] This utility model belongs to the field of axial flow pump technology, specifically relating to a horizontally installed axial flow pump. [Background Technology]

[0002] In the installation of axial flow pumps, vertical or horizontal installation is generally adopted. Both installation methods require the well casing to be fixed in place and immovable before the axial flow pump is installed inside. Referring to Chinese utility model patent CN220134295U, an anti-rotation coupling structure between an axial flow pump and a well casing is disclosed, belonging to the field of axial flow pump technology. It includes a well casing and an axial flow pump installed inside the well casing. The bottom of the axial flow pump has a guide vane, and the bottom of the guide vane has a water inlet bell-shaped opening. The water inlet bell-shaped opening has an assembly base. An installation plate is provided inside the well casing. The water inlet bell-shaped opening and the well casing have an anti-rotation mating structure. The assembly base and the installation plate are planarly sealed and coupled. When the axial flow pump is installed inside the well casing, the anti-rotation mating structure plays a positioning role. The anti-rotation plate of the water inlet bell-shaped opening cooperates with the anti-rotation structure inside the well casing, causing the axial flow pump to move downwards along the well casing axis to the installation plate. Then, the axial flow pump is installed inside the well casing through the planar sealing coupling between the assembly base and the installation plate.

[0003] In situations such as water intake from rivers and lakes, and flood control during the rainy season, the actual water level difference is large. Using fixed installation can bring hidden dangers to the operation of pumps (such as insufficient submersion depth, which can easily cause pump cavitation). [Utility Model Content]

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a movable axial flow pump assembly with a sliding rail, enabling the pump to be moved and installed, thus solving the problem caused by the well casing being fixed in place and immovable in existing technologies.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A movable axial flow pump assembly with a slide rail includes a slide rail, an integrally formed axial flow pump, and a well casing. The well casing has a first mounting flange and a second mounting flange at both ends. The first mounting flange is used for installation in the well casing. The axial flow pump includes a motor and a pump body. The motor is located inside the well casing, and the pump body is located outside the motor, with a third mounting flange at the end where it connects to the motor. The second and third mounting flanges are mated and fixed with fasteners. A pulley is provided on the outer side of the well casing. The slide rail is laid in the installation area. Through the cooperation of the pulley and the slide rail, the axial flow pump and the well casing can be moved together to the installation position.

[0007] Preferably, the wellbore has at least three fixing rods evenly distributed circumferentially for radially supporting the motor.

[0008] Preferably, the side wall of the well shaft is provided with a fixing nut, the fixing rod is a screw rod, the screw rod is connected to the fixing nut and is also connected to a locking nut that locks the fixing rod.

[0009] Preferably, two slide rails are arranged side by side in the installation area and four pulleys are correspondingly provided on the well barrel, with the four pulleys symmetrically distributed in pairs on both radial sides of the well barrel.

[0010] Preferably, the pulley is mounted on a fixed support base, and the fixed support base is connected to the well shaft.

[0011] Preferably, the fixed support base has a U-shaped portion, and an axle is connected between the two side walls of the U-shaped portion, with the pulley mounted on the axle.

[0012] Preferably, the axle has a small-diameter threaded section on the outside of the U-shaped part, the small-diameter threaded section is connected to a limit nut, and the end of the axle is connected to an anti-loosening pressure pad that presses the limit nut through a fastening screw.

[0013] Preferably, the slide rail is I-shaped; and / or, the pulley is provided with a groove that mates with the slide rail.

[0014] Preferably, the wellbore is provided with lifting lugs and cable outlet sealing holes.

[0015] Preferably, the first mounting flange and the second mounting flange are welded and fixed to the well casing, and reinforcing ribs are welded between the first mounting flange and the second mounting flange and the well casing; and / or, the fasteners are flange bolts.

[0016] The present invention adopts the above technical solution and has the following beneficial effects:

[0017] 1. The axial flow pump and wellbore are integrated. The axial flow pump and wellbore are processed separately and then combined. The structure is compact and the manufacturing cost is low.

[0018] To facilitate rapid installation of the well casing, a first mounting flange is provided at one end of the well casing for installation; to facilitate the combination of the axial flow pump and the well casing, a second mounting flange is provided at the other end of the well casing, and a third mounting flange is provided on the pump body. The second and third mounting flanges are connected and fixed with fasteners, which can quickly combine and fix the axial flow pump and the well casing into one unit.

[0019] In addition, the slide rail is laid in the installation area. Since the axial flow pump and the well barrel are pre-assembled as one unit, the position can be quickly changed according to the installation location. The pulleys on the well barrel are automatically coupled with the slide rail, realizing the integrated movement and installation of the axial flow pump and the well barrel. Therefore, the installation is convenient. This allows the pump to be moved according to the water level changes at the installation location, solving the problems caused by the well barrel being fixed in place and unable to move in the existing technology (such as insufficient submersion depth, which can easily cause pump cavitation).

[0020] 2. At least three fixing rods for radial support of the motor are evenly distributed along the circumference of the wellbore (taking three support rods as an example, distributed at 120° intervals along the circumference). This ensures that the motor shaft is coaxial with the center line of the wellbore, ensuring the coaxiality of the motor shaft and pump shaft during the operation of the axial flow pump, thus improving the reliability and stability of the operation.

[0021] 3. Because the side wall of the well casing is equipped with a fixing nut, and the fixing rod is a threaded rod connected to the fixing nut, the fixing rod is easy to install. The position of the threaded rod can be adjusted to ensure that the motor shaft is coaxial with the center line of the well casing. At the same time, the threaded rod is connected to a locking nut to tighten the fixing rod, preventing it from loosening and shifting during operation.

[0022] 4. The installation area is equipped with two parallel slide rails and four corresponding pulleys on the well barrel. The slide rails are I-shaped and the pulleys have grooves that mate with the slide rails. Therefore, the pulleys and slide rails work together stably. The pulleys and slide rails work together to ensure that the well barrel and axial flow pump move accurately without deviation during the process and finally reach the installation position accurately without the need for adjustment.

[0023] 5. The pulley is installed on a fixed support base, which is connected to the shaft. The fixed support base has a U-shaped section, and an axle is connected between the two side walls of the U-shaped section. The pulley is installed on the axle, which facilitates pulley installation. Furthermore, the axle has a small-diameter threaded section on the outside of the U-shaped section, which is connected to a limit nut. The end of the axle is connected to an anti-loosening washer that presses the limit nut with a fastening screw, preventing the nut from loosening due to harmful vibrations during equipment operation.

[0024] 6. The well casing is equipped with lifting lugs and cable outlet sealing holes. The lifting lugs are for easy hoisting of the well casing and axial flow pump onto the slide rail, and the cable outlet sealing holes are for sealing the cable outlet.

[0025] 7. The first and second mounting flanges are welded and fixed to the well casing, and reinforcing ribs are welded between the first and second mounting flanges and the well casing to ensure reliable flange fixing.

[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0027] The utility model will be further described below with reference to the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the connection structure between a portable axial flow pump and a slide rail.

[0029] Figure 2 This is a schematic diagram of the connection structure between a portable axial flow pump and a slide rail.

[0030] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0031] Reference numerals: 1. Axial flow pump; 11. Pump body; 12. Motor; 13. Third mounting flange; 2. Well shaft; 201. Reinforcing rib; 21. Pulley; 22. Fixed support seat; 22. U-shaped part; 221. Wheel axle; 222. Limit nut; 223. Anti-loosening pressure pad; 224. Fastening screw; 225. First mounting flange; 23. Second mounting flange; 24. Lifting lug; 25. Cable outlet sealing hole; 26. Fixing nut; 27. Fixing rod; 28. Locking nut; 29. ​​Slide rail; 3.

Detailed Implementation Methods

[0032] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0033] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0034] The terminology used in this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "inner," and "outer," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship of the photovoltaic module in its installed state and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0037] Reference Figures 1 to 3 As shown, this embodiment provides a movable axial flow pump assembly with a slide rail, adopting a horizontal installation structure. It includes a slide rail 3 and an axial flow pump 1 and a well casing 2 integrally arranged front and rear, with the axial directions of the axial flow pump 1 and well casing 2 parallel to the slide rail. The well casing 2 has a first mounting flange 23 and a second mounting flange 24 at both ends, respectively. The first mounting flange 23 is used for mounting the well casing 2. The axial flow pump 1 includes a motor 12 and a pump body 11. The motor 12 is located inside the well casing, and the pump body 11 is located outside the motor, with a third mounting flange 13 at the end where it connects to the motor. The second mounting flange 24 and the third mounting flange 13 are connected and fixed with fasteners, such as flange bolts with rubber gaskets.

[0038] In order to achieve the integrated movement and installation of the pump and the well casing, a pulley 21 is provided on the outer side of the well casing 2, and the slide rail 3 is laid in the installation area. Through the cooperation of the pulley 21 and the slide rail 3, the well casing and the axial flow pump are moved together to the installation position.

[0039] The above technical solution features an integrated axial flow pump and wellbore, which are manufactured separately and then combined, resulting in a compact structure and low manufacturing cost.

[0040] To facilitate rapid installation of the well casing, a first mounting flange is provided at one end of the well casing for installation; to facilitate the combination of the axial flow pump and the well casing, a second mounting flange is provided at the other end of the well casing, and a third mounting flange is provided on the pump body. The second and third mounting flanges are connected and fixed with fasteners, which can quickly combine and fix the axial flow pump and the well casing into one unit.

[0041] In addition, the slide rail is laid in the installation area. Since the axial flow pump and the well barrel are pre-assembled as one unit, the position can be changed according to the installation location. The pulleys on the well barrel are automatically coupled with the slide rail, realizing the integrated movement and installation of the axial flow pump and the well barrel. Therefore, the installation is convenient. This allows the pump to be moved according to the water level changes at the installation location, solving the problems caused by the well barrel being fixed in place and unable to move in the existing technology (such as insufficient submersion depth, which can easily cause pump cavitation).

[0042] In some embodiments, the wellbore 2 has at least three fixing rods 28 evenly distributed circumferentially for radially supporting the motor. The sidewall of the wellbore is provided with fixing nuts 27, and the fixing rods 28 are threaded rods. The threaded rods are connected to the fixing nuts and also to locking nuts 29 that secure the fixing rods. This facilitates the installation of the fixing rods, and the position of the threaded rods is adjusted to ensure that the motor shaft is coaxial with the center line of the wellbore. Simultaneously, the locking nuts connected to the threaded rods prevent the fixing rods from loosening and shifting during operation. The figure shows three supporting rods distributed at 120° intervals circumferentially. This ensures that the motor shaft is coaxial with the center line of the wellbore, guaranteeing the coaxiality of the motor shaft and pump shaft during axial flow pump operation, thus improving the reliability and stability of the operation.

[0043] Due to the adoption of a horizontal installation structure, two slide rails 3 are arranged side by side in the installation area, and four pulleys are correspondingly installed on the shaft 2. The four pulleys 21 are symmetrically distributed in pairs on both sides of the horizontal radial direction of the shaft, and are all located on the lower side of the vertical radial direction of the shaft. The pulleys 21 are installed on a fixed support 22, which is connected to the shaft 2. The fixed support 22 has a U-shaped part 221, and an axle 222 is connected between the two side walls of the U-shaped part. The pulleys 21 are installed on the axle 222, which facilitates the installation of the pulleys. The axle 222 has a small-diameter threaded section on the outside of the U-shaped part. The small-diameter threaded section is connected to a limit nut 223, and the end of the axle is connected to an anti-loosening pressure washer 224 that presses the limit nut through a fastening screw 225. Because the end of the axle is connected to the anti-loosening pressure washer that presses the limit nut through a fastening screw, the loosening of the nut due to harmful vibration during equipment operation is prevented.

[0044] Specifically, the slide rail 3 is I-shaped, and the pulley 21 has a groove that mates with the slide rail 3; the two work together to prevent derailment. The shaft 2 is equipped with a lifting lug 25 and a cable outlet sealing hole 26 to facilitate lifting and cable sealing.

[0045] Furthermore, the first mounting flange 23 and the second mounting flange 24 are welded and fixed to the well shaft 2, and reinforcing ribs 201 are welded between the first mounting flange and the second mounting flange and the well shaft to ensure reliable fixing between the flange and the well shaft.

[0046] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A movable axial flow pump assembly with a slide rail, characterized in that, The device includes a slide rail, an integrated axial flow pump, and a well casing. The well casing has a first mounting flange and a second mounting flange at each end. The first mounting flange is used for installation within the well casing. The axial flow pump includes a motor and a pump body. The motor is located inside the well casing, and the pump body is located outside the motor, with a third mounting flange at the end where it connects to the motor. The second and third mounting flanges are mated and secured with fasteners. A pulley is located on the outside of the well casing. The slide rail is laid in the installation area. Through the cooperation of the pulley and the slide rail, the axial flow pump and the well casing are moved together to the installation position.

2. The movable axial flow pump assembly with slide rail according to claim 1, characterized in that, The wellbore has at least three fixing rods evenly distributed circumferentially for radially supporting the motor.

3. The movable axial flow pump assembly with slide rail according to claim 2, characterized in that, The well shaft is provided with a fixing nut on its side wall. The fixing rod is a screw rod. The screw rod is connected to the fixing nut and is also connected to a locking nut that locks the fixing rod.

4. The movable axial flow pump assembly with slide rail according to claim 1, characterized in that, Two slide rails are installed side by side in the installation area, and four pulleys are installed on the well barrel. The four pulleys are symmetrically distributed in pairs on both sides of the radial direction of the well barrel.

5. The movable axial flow pump assembly with slide rail according to claim 1, characterized in that, The pulley is mounted on a fixed support base, which is connected to the well shaft.

6. The movable axial flow pump assembly with slide rail according to claim 5, characterized in that, The fixed support base has a U-shaped part, and an axle is connected between the two side walls of the U-shaped part. The pulley is installed on the axle.

7. The movable axial flow pump assembly with slide rail according to claim 6, characterized in that, The axle has a small-diameter threaded section on the outside of the U-shaped part, and the small-diameter threaded section is connected to a limit nut. The end of the axle is connected to an anti-loosening pressure pad that presses the limit nut through a fastening screw.

8. The movable axial flow pump assembly with slide rail according to claim 1, characterized in that, The slide rail is I-shaped; and / or the pulley is provided with a groove that mates with the slide rail.

9. The movable axial flow pump assembly with slide rail according to claim 1, characterized in that, The wellbore is equipped with lifting lugs and cable outlet sealing holes.

10. The movable axial flow pump assembly with slide rail according to claim 1, characterized in that, The first mounting flange and the second mounting flange are welded and fixed to the well casing, and reinforcing ribs are welded between the first mounting flange and the second mounting flange and the well casing; and / or, the fasteners are flange bolts.

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