Vertical pipeline centrifugal pump convenient to install

Abstract

The utility model discloses a vertical pipeline centrifugal pump convenient to mount, which belongs to the technical field of vertical centrifugal pumps and comprises a vertical centrifugal pump body, a mounting table is arranged at the bottom of the vertical centrifugal pump body, a notch is formed in the mounting table, and a supporting block is slidably arranged in the notch. The bottom of the vertical centrifugal pump body is slidably arranged in the notch and fixedly connected with the supporting block, a threaded rod is rotatably arranged in the notch, the threaded rod penetrates through the supporting block and is in threaded fit with the supporting block, a limiting assembly for limiting the supporting block is arranged in the notch, and a mounting cavity is formed in the mounting table. A driving assembly is mounted in the mounting cavity, penetrates through the mounting cavity and is located in the notch, the driving assembly is fixedly connected with the threaded rod, a transmission assembly is mounted on one side of the driving assembly, and the input end of the transmission assembly penetrates through the mounting cavity and is located outside the mounting table. And the connection between the vertical centrifugal pump and the pipelines on the two sides is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical centrifugal pumps, and more specifically to a vertical pipeline centrifugal pump which is easy to install. Background Art

[0002] The vertical centrifugal pump relies on the action of the rotating impeller on the liquid to transfer the mechanical energy of the prime mover to the liquid. Due to the action of the centrifugal pump, the velocity energy and pressure energy of the liquid are increased in the process of flowing from the impeller inlet to the outlet. The liquid discharged by the impeller passes through the extrusion chamber, and most of the velocity energy is converted into pressure energy, and then transported out along the discharge pipeline. At this time, a vacuum or low pressure is formed at the impeller inlet due to the discharge of the liquid. The liquid in the suction pool is pressed into the impeller inlet under the action of the liquid surface pressure / atmospheric pressure, so the rotating impeller continuously inhales and discharges the liquid.

[0003] The heights of the input and output ports at both ends of the existing vertical centrifugal pump are relatively low, so during installation, the vertical centrifugal pump needs to be installed on the platform, and the pipes at both ends of the vertical centrifugal pump need to be supported by brackets to ensure that the pipes are at the same height as the two ends of the vertical centrifugal pump so as to be connected. However, during actual use, it is difficult to ensure that the height of the bracket is just right. At this time, it is necessary to constantly adjust the height of the bracket or the height of the platform. Whether adjusting the bracket or the platform will affect the overall construction progress and increase the trouble of installation. A solution is proposed below to address the above problems. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a vertical pipeline centrifugal pump that is easy to install and can facilitate the connection between the vertical centrifugal pump and pipelines on both sides by adjusting the height of the vertical centrifugal pump.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A vertical pipeline centrifugal pump that is easy to install comprises a vertical centrifugal pump body, a mounting platform is arranged at the bottom of the vertical centrifugal pump body, a recess is opened on the mounting platform, a support block is slidably arranged inside the recess, the bottom of the vertical centrifugal pump body is slidably arranged inside the recess, and the bottom of the vertical centrifugal pump body is fixedly connected to the support block, a threaded rod is rotatably arranged inside the recess, the threaded rod passes through the support block and is threadedly matched with the support block, a limiting assembly for limiting the support block is arranged inside the recess, an installation cavity is installed inside the mounting platform, a drive assembly is installed inside the installation cavity, the drive assembly passes through the installation cavity and is located inside the recess, and the drive assembly and the threaded rod are fixedly connected, a transmission assembly is installed on one side of the drive assembly, and the input end of the transmission assembly passes through the installation cavity and is located outside the mounting platform.

[0007] Preferably, the driving assembly includes a rotating rod, a worm wheel and a worm, a connecting groove is opened at the bottom of the recess, the connecting groove connects the recess and the installation cavity, the rotating rod is vertically arranged inside the connecting groove, and the rotating rod and the connecting groove are rotatably matched, one end of the rotating rod is fixedly connected to the threaded rod, and the other end of the rotating rod is rotatably matched with the bottom of the installation cavity, the worm wheel is sleeved on the rotating rod and fixedly connected, the worm is horizontally arranged, and the worm and the installation cavity are rotatably matched, and the worm and worm wheel are meshed with each other.

[0008] Preferably, the transmission assembly includes a first gear, a second gear and a transmission rod, a rotation groove is opened on one side of the installation cavity, the transmission rod is rotatably arranged inside the rotation groove, one end of the transmission rod located inside the installation cavity is fixedly connected to the first gear, the second gear is installed at the input end of the driving assembly, the first gear and the second gear are meshed with each other, and the number of teeth of the first gear is less than the number of teeth of the second gear.

[0009] Preferably, the limit assembly includes a limit rod, and a plurality of the limit rods are provided, wherein the limit rods are vertically arranged and evenly arranged inside the recess, one end of the limit rods is fixedly connected to the recess, and the other ends of the limit rods pass through the support block and slideably fit with the support block.

[0010] Preferably, one end of the transmission rod is provided with a transmission opening for facilitating force application.

[0011] Preferably, a bayonet is provided at the bottom of the installation cavity, a bearing is provided inside the bayonet, and the rotating rod is rotatably matched with the installation cavity through the bearing.

[0012] Preferably, a bracket is provided inside the installation cavity, and the driving assembly and the transmission assembly are both installed on the bracket.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1. This solution is connected to the ground through a mounting platform. The height of the vertical centrifugal pump body can be appropriately adjusted according to the height of the pipes at both ends. The driving assembly is driven to rotate by the transmission assembly, and the driving assembly drives the threaded rod to rotate. Since the threaded rod and the support block are matched through threads, when the threaded rod rotates, the support block will be pushed by the threaded rod to move upward inside the recess. At the same time, the limit assembly will ensure that the movement of the support block is more stable. The vertical centrifugal pump is driven to move by the moving support block, thereby controlling the height of the vertical centrifugal pump so that it can be the same height as the pipes at both ends, which is convenient for the installation of the vertical centrifugal pump and the pipe. The transmission assembly is a speed reduction mechanism, which can ensure that the rotation of the driving assembly is more stable and improve the movement accuracy of the vertical centrifugal pump. The liquid is transported through the ports and pipes at both ends of the vertical centrifugal pump body.

[0015] 2. The rotation of the worm will drive the worm wheel to rotate, the worm wheel will drive the corresponding rotating rod to rotate, and the rotating rod will drive the threaded rod to rotate through the connecting groove. The cooperation of the worm and the worm wheel can have the advantages of stable transmission and large load-bearing capacity. At the same time, it has self-locking properties to prevent the vertical centrifugal pump from moving downward when subjected to force, thereby ensuring stability.

[0016] 3. The rotation groove is convenient for driving the transmission rod outside the installation cavity. The transmission rod drives the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the driving assembly to rotate. At the same time, the number of teeth of the first gear is less than that of the second gear. The whole is a reduction gear set. The reduction gear set has the advantage of high transmission accuracy and can accurately control the adjustment height of the vertical centrifugal pump.

[0017] Fourth, the sliding cooperation between the limit rod and the support block can prevent the support block from rotating during movement, while ensuring the stability of the up and down movement.

[0018] 5. The transmission port makes it easy to rotate the transmission rod through tools.

[0019] 6. The bayonet is used to install the bearing. The cooperation between the bearing and the rotating rod can reduce the friction of the rotating rod and ensure the smooth rotation of the rotating rod.

[0020] 7. The bracket is used to support the drive assembly and transmission assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 This is a front view structural schematic diagram of the utility model;

[0023] Figure 3 It is a cross-sectional structural schematic diagram of the front view of the mounting platform of the utility model;

[0024] Figure 4 It is a cross-sectional structural schematic diagram of a side view of the mounting platform of the utility model;

[0025] Figure 5 It is a cross-sectional structural schematic diagram of AA of the utility model;

[0026] Figure 6 It is a schematic diagram of the enlarged structure of A of the present utility model.

[0027] Description of the numbers in the figure:

[0028] 1. Vertical centrifugal pump body; 2. Mounting platform; 3. Notch; 4. Support block; 5. Threaded rod; 6. Limiting assembly; 7. Mounting cavity; 8. Driving assembly; 9. Transmission assembly; 10. Rotating rod; 11. Worm gear; 12. Worm; 13. Connecting groove; 14. First gear; 15. Second gear; 16. Transmission rod; 17. Rotating groove; 18. Limiting rod; 19. Transmission port; 20. Bayonet; 21. Bearing; 22. Bracket. DETAILED DESCRIPTION

[0029] Embodiment 1:

[0030] See also Figure 1-6 A vertical pipeline centrifugal pump that is easy to install includes a vertical centrifugal pump body 1. A mounting platform 2 is arranged at the bottom of the vertical centrifugal pump body 1. A plurality of bolt holes for connecting to the outside through bolts are evenly opened on the mounting platform 2. The design of multiple bolt holes ensures the stability of the connection. A recess 3 is opened on the mounting platform 2. A support block 4 is slidably arranged inside the recess 3. The support block 4 and the recess 3 are adapted. The bottom of the vertical centrifugal pump body 1 is slidably arranged inside the recess 3, and the bottom of the vertical centrifugal pump body 1 is fixedly connected to the support block 4.

[0031] A limiting assembly 6 for limiting the support block 4 is arranged inside the recess 3. The limiting assembly 6 includes a limiting rod 18. A plurality of limiting rods 18 are provided. The limiting rods 18 are vertically arranged and evenly arranged inside the recess 3. One end of the limiting rods 18 is fixedly connected to the recess 3, and the other end of the limiting rods 18 passes through the support block 4 and slides with the support block 4.

[0032] The sliding fit between the support block 4 and the recess 3 and the sliding fit between the limit rod 18 and the support block 4 can prevent the support block 4 from rotating during movement, while ensuring the stability of the support block 4 moving up and down, that is, ensuring the stability of the vertical centrifugal pump body 1 moving up and down.

[0033] A threaded rod 5 is rotatably arranged inside the recess 3, and the threaded rod 5 passes through the support block 4 and is threadedly matched with the support block 4. A mounting cavity 7 is installed inside the mounting platform 2, and a bracket 22 is fixedly connected inside the mounting cavity 7. A driving assembly 8 is installed inside the mounting cavity 7, and the driving assembly 8 includes a rotating rod 10, a worm wheel 11 and a worm 12. A connecting groove 13 is provided at the bottom of the recess 3, and the connecting groove 13 connects the recess 3 and the mounting cavity 7. The rotating rod 10 is vertically arranged inside the connecting groove 13, and the rotating rod 10 and the connecting groove 13 are rotatably matched. One end of the rotating rod 10 is fixedly connected to the threaded rod 5. A bayonet 20 is provided at the bottom of the mounting cavity 7, and a bearing 21 is provided inside the bayonet 20. The rotating rod 10 is rotatably matched with the mounting cavity 7 through the bearing 21. The worm wheel 11 is sleeved on the rotating rod 10 and fixedly connected. The worm 12 is horizontally arranged, and the worm 12 and the bracket 22 are rotatably matched, and the worm 12 and the worm wheel 11 are meshed with each other.

[0034] The bayonet 20 is used to install the bearing 21. The cooperation between the bearing 21 and the rotating rod 10 can reduce the friction of the rotating rod 10 and ensure the smooth rotation of the rotating rod 10. The rotation of the rotating rod 10 drives the rotation of the threaded rod 5, and the rotating threaded rod 5 can drive the support block 4 to move up and down to adjust the position. The cooperation between the worm 12 and the worm wheel 11 can have the advantages of stable transmission and large load-bearing capacity. At the same time, it has self-locking properties to prevent the vertical centrifugal pump from moving downward when subjected to force, thereby ensuring stability.

[0035] A transmission assembly 9 is installed on one side of the driving assembly 8. The transmission assembly 9 includes a first gear 14, a second gear 15 and a transmission rod 16. A rotation groove 17 is provided on one side of the installation cavity 7. The transmission rod 16 is rotatably arranged inside the rotation groove 17. A transmission opening 19 for convenient force application is provided at one end of the transmission rod 16. The transmission opening 19 is in a regular hexagonal state, which is convenient for using an Allen wrench to rotate the transmission rod 16. One end of the transmission rod 16 located inside the installation cavity 7 is rotatably matched with the bracket 22. At the same time, one end of the transmission rod 16 located inside the installation cavity 7 is fixedly connected to the first gear 14. The second gear 15 is installed at one end of the worm 12. The first gear 14 and the second gear 15 are meshed with each other, and the number of teeth of the first gear 14 is less than the number of teeth of the second gear 15.

[0036] The transmission port 19 is convenient for rotating the transmission rod 16 by means of a tool. The number of teeth of the first gear 14 is less than that of the second gear 15, and the whole is a reduction gear set. The reduction gear set has the advantage of high transmission accuracy and can accurately control the adjustment height of the vertical centrifugal pump.

[0037] Working principle:

[0038] When in use, the mounting platform 2 is mounted on the ground or platform through the bolt holes, and the height of the vertical centrifugal pump is adjusted according to the pipes at both ends of the vertical centrifugal pump. The transmission rod 16 is rotated by inserting an adapted hexagonal wrench into the transmission port 19. The transmission rod 16 drives the first gear 14 to rotate, and the first gear 14 drives the meshing second gear 15 to rotate. The second gear 15 drives the fixedly connected worm 12 to rotate, and the worm 12 drives the worm wheel 11 to rotate. The rotating worm wheel 11 drives the fixedly connected rotating rod 10 to rotate, and the rotating rod 10 drives the threaded rod 5 to rotate. Since the threaded rod 5 and the support block 4 are threadedly matched, and the support block 4 is limited by the limiting rod 18, the support block 4 will not rotate. When the threaded rod 5 rotates, it will push the support block 4 to move, so that the support block 4 will drive the vertical centrifugal pump to move, thereby adjusting the height of the vertical centrifugal pump to match the height of the external pipe, avoiding the installation trouble caused by the error when the external pipe is connected, facilitating the overall installation and improving efficiency.

Claims

1. A vertical pipeline centrifugal pump that is easy to install, characterized in that: The invention comprises a vertical centrifugal pump body (1), wherein a mounting platform (2) is arranged at the bottom of the vertical centrifugal pump body (1), a recess (3) is provided on the mounting platform (2), a support block (4) is slidably arranged inside the recess (3), the bottom of the vertical centrifugal pump body (1) is slidably arranged inside the recess (3), and the bottom of the vertical centrifugal pump body (1) is fixedly connected to the support block (4), a threaded rod (5) is rotatably arranged inside the recess (3), the threaded rod (5) passes through the support block (4) and is threadedly matched with the support block (4), and the vertical centrifugal pump body (1) is slidably arranged inside the recess (3). A limiting assembly (6) for limiting the support block (4) is arranged inside the recess (3); a mounting cavity (7) is arranged inside the mounting platform (2); a driving assembly (8) is arranged inside the mounting cavity (7); the driving assembly (8) passes through the mounting cavity (7) and is located inside the recess (3); the driving assembly (8) and the threaded rod (5) are fixedly connected; a transmission assembly (9) is arranged on one side of the driving assembly (8); an input end of the transmission assembly (9) passes through the mounting cavity (7) and is located outside the mounting platform (2).

2. A vertical pipeline centrifugal pump that is easy to install according to claim 1, characterized in that: The driving assembly (8) comprises a rotating rod (10), a worm wheel (11) and a worm (12); a connecting groove (13) is provided at the bottom of the recess (3); the connecting groove (13) connects the recess (3) and the mounting cavity (7); the rotating rod (10) is vertically arranged inside the connecting groove (13); the rotating rod (10) and the connecting groove (13) are rotatably matched; one end of the rotating rod (10) is fixedly connected to the threaded rod (5); the other end of the rotating rod (10) is rotatably matched to the bottom of the mounting cavity (7); the worm wheel (11) is sleeved on the rotating rod (10) and is fixedly connected; the worm (12) is vertically arranged; the worm (12) and the mounting cavity (7) are rotatably matched; the worm (12) and the worm wheel (11) are meshed with each other.

3. The vertical pipeline centrifugal pump that is easy to install according to claim 1 is characterized in that: The transmission assembly (9) comprises a first gear (14), a second gear (15) and a transmission rod (16); a rotation groove (17) is provided on one side of the installation cavity (7); the transmission rod (16) is rotatably arranged inside the rotation groove (17); one end of the transmission rod (16) located inside the installation cavity (7) is fixedly connected to the first gear (14); the second gear (15) is installed at the input end of the driving assembly (8); the first gear (14) and the second gear (15) are meshed with each other, and the number of teeth of the first gear (14) is smaller than the number of teeth of the second gear (15).

4. A vertical pipeline centrifugal pump that is easy to install according to claim 1, characterized in that: The limiting assembly (6) comprises a limiting rod (18), and a plurality of the limiting rods (18) are provided. The limiting rods (18) are arranged vertically, and the limiting rods (18) are evenly arranged inside the recess (3). One end of the limiting rods (18) is fixedly connected to the recess (3), and the other end of the limiting rods (18) passes through the support block (4) and is slidably matched with the support block (4).

5. The vertical pipeline centrifugal pump that is easy to install according to claim 3 is characterized in that: One end of the transmission rod (16) is provided with a transmission opening (19) for facilitating force application.

6. The vertical pipeline centrifugal pump that is easy to install according to claim 2 is characterized in that: A bayonet (20) is provided at the bottom of the installation cavity (7), a bearing (21) is provided inside the bayonet (20), and the rotating rod (10) is rotatably matched with the installation cavity (7) via the bearing (21).

7. The easy-to-install vertical pipeline centrifugal pump according to claim 1, characterized in that: A bracket (22) is arranged inside the installation cavity (7), and the driving assembly (8) and the transmission assembly (9) are both installed on the bracket (22).

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