A centrifugal pump seal connection structure

Abstract

The utility model relates to the field of centrifugal pump seal connection, and discloses a centrifugal pump seal connection structure, including a bottom plate, a pump body is fixedly installed on the top of the bottom plate, a rear pump cover is fixedly connected to the right side of the pump body, a connection cover is provided on the right side of the rear pump cover, a bearing seat is fixedly installed on the right side of the connection cover, a motor is fixedly installed on the right side of the bearing seat, and a disassembly assembly is provided on the outer wall of the connection cover, and the disassembly assembly includes a threaded sleeve, and the threaded sleeve is fixedly connected to the outer wall of the right side bearing seat near the connection cover. In the utility model, after the rear pump cover is aligned with the connection cover, the guide sleeve is rotated to drive the guide ring to move and pull the connection block and the clamping block, and the clamping block moves inward along the outer wall of the positioning block, and multiple groups of clamping blocks are moved and clamped into the clamping groove at the same time, so that the rear pump cover and the connection cover are stably installed, and the installation is more convenient and improves the installation efficiency. At the same time, the stability of the installation can be improved by multiple groups of clamping blocks.

Description

Technical Field

[0001] The utility model relates to the field of centrifugal pump seal connection, in particular to a centrifugal pump seal connection structure. Background Art

[0002] As a universal fluid conveying equipment, centrifugal pump plays a vital role in many fields such as industrial production, agricultural irrigation, urban water supply and drainage, etc. It generates centrifugal force through the high-speed rotation of the impeller to transport liquid from low to high or realize the circulation of liquid.

[0003] At present, the mechanical seal connection structures of many centrifugal pumps are mainly installed and fixed by bolts. However, during the installation process, it is necessary to align the bolts with the mounting holes one by one and use tools to tighten them. This process is not only cumbersome but also time-consuming, which reduces the efficiency of the mechanical seal connection installation of the centrifugal pump. Therefore, a centrifugal pump mechanical seal connection structure is proposed to solve the above problems. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a centrifugal pump seal connection structure, which aims to improve the problem in the prior art that "when installing the bolts, it is necessary to align the bolts with the mounting holes one by one and tighten them one by one, which takes a lot of time and makes the installation more troublesome."

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a centrifugal pump seal connection structure, including a base plate, a pump body is fixedly installed on the top end of the base plate, a rear pump cover is fixedly connected to the right side of the pump body, a connecting cover is arranged on the right side of the rear pump cover, a bearing seat is fixedly installed on the right side of the connecting cover, a motor is fixedly installed on the right side of the bearing seat, a disassembly and assembly component is arranged on the outer wall of the connecting cover, the disassembly and assembly component includes a threaded sleeve, the threaded sleeve is fixedly connected to the outer wall of the right side bearing seat close to the connecting cover, a guide sleeve is threadedly connected to the outer wall of the threaded sleeve, a rotating rod is fixedly connected to the outer wall of the guide sleeve and multiple groups are arranged, and the multiple groups of rotating rods are evenly arranged on the outer wall of the guide sleeve.

[0006] As a further description of the above technical solution:

[0007] A sealing assembly is arranged on the left side of the connection cover, and the sealing assembly comprises a sealing ring. A sliding groove is opened on the left side of the connection cover, and the sealing ring is slidably connected to the inner wall of the sliding groove.

[0008] As a further description of the above technical solution:

[0009] A circular groove is formed on the outer wall of the guide sleeve near the left side of the rotating rod, and a guide ring is slidably connected to the inner wall of the circular groove.

[0010] As a further description of the above technical solution:

[0011] A connecting block is hinged on the top of the guide ring, and a clamping block is hinged on the left side of the connecting block.

[0012] As a further description of the above technical solution:

[0013] The top end of the connection cover is fixedly connected with a positioning block, and the clamping block is slidably connected to the outer wall of the positioning block.

[0014] As a further description of the above technical solution:

[0015] The card block is arranged in an L shape.

[0016] As a further description of the above technical solution:

[0017] A slot is provided at the top of the rear pump cover, and the card block is connected to the inner wall of the slot. There are multiple groups of the card block, positioning block, connecting block and slot, and the multiple groups of the card block, positioning block, connecting block and slot are arranged in a circular array with the center point of the connecting cover as the center.

[0018] As a further description of the above technical solution:

[0019] The sealing ring is elastically connected to the connecting cover via a spring, one end of the spring is fixedly connected to the right side of the sealing ring, and the other end of the spring is fixedly connected to the right inner wall of the sliding groove.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, after aligning the rear pump cover with the connecting cover, after sliding the clamping block into the clamping groove, the guide sleeve is rotated to drive the guide ring to move and pull the connecting block and the clamping block, so that the clamping block moves inward along the outer wall of the positioning block, so that multiple groups of clamping blocks can be moved and clamped into the clamping groove at the same time, and the rear pump cover and the connecting cover can be stably installed, the installation is more convenient and the installation efficiency is improved. At the same time, the stability of the installation can be improved by multiple groups of clamping blocks.

[0022] 2. In the utility model, when the rear pump cover and the connecting cover are installed, the rear pump cover will squeeze the sealing ring. After the installation of the rear pump cover and the connecting cover is completed, the rear pump cover will squeeze the sealing ring into the slide groove and squeeze the spring at the same time. The reverse force of the squeezed spring makes the sealing ring always squeeze the rear pump cover, thereby increasing the sealing when the rear pump cover and the connecting cover are connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0024] Figure 2It is a schematic diagram of the three-dimensional structure of the rear pump cover, the connecting cover and the guide sleeve of the utility model;

[0025] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the connecting cover in the utility model.

[0026] Legend:

[0027] 1. Base plate; 2. Connecting cover; 3. Rear pump cover; 4. Pump body; 5. Motor; 6. Sealing ring; 7. Bearing seat; 21. Block; 22. Positioning block; 23. Connecting block; 24. Guide ring; 25. Circular ring groove; 26. Rotating rod; 27. Guide sleeve; 28. Threaded sleeve; 29. ​​Slot; 61. Slide groove; 62. Spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a centrifugal pump mechanical seal connection structure, including a bottom plate 1 for providing support, a pump body 4 is fixedly installed on the top of the bottom plate 1, which generates a strong centrifugal force through high-speed rotation to suck liquid from the suction channel and send it out from the discharge channel after pressurization, a rear pump cover 3 connected and installed with the connecting cover 2 to form a mechanical seal connection structure is fixedly connected to the right side of the pump body 4, a connecting cover 2 connected and installed with the rear pump cover 3 to form a mechanical seal connection structure is arranged on the right side of the rear pump cover 3, a bearing seat 7 for supporting the rotation of the centrifugal pump shaft is fixedly installed on the right side of the connecting cover 2, a motor 5 is fixedly installed on the right side of the bearing seat 7, and the motor The machine 5 is the power source of the centrifugal pump, which provides powerful power for the operation of the centrifugal pump. The outer wall of the connecting cover 2 is provided with a disassembly assembly, which includes a threaded sleeve 28 threadedly connected to the guide sleeve 27 so that the guide sleeve 27 can be rotated and moved. The threaded sleeve 28 is fixedly connected to the outer wall of the right side bearing seat 7 near the connecting cover 2. The outer wall of the threaded sleeve 28 is threadedly connected with the guide sleeve 27 that drives the guide ring 24 to move left and right. The outer wall of the guide sleeve 27 is fixedly connected with a rotating rod 26 that can be easily rotated to pull the rotating rod 26 to rotate the guide sleeve 27, and multiple groups of rotating rods 26 are provided, and the multiple groups of rotating rods 26 are evenly arranged on the outer wall of the guide sleeve 27.

[0030] Reference Figure 2 and Figure 3A sealing assembly is provided on the left side of the connecting cover 2, and the sealing assembly includes a sealing ring 6. The sealing ring 6 is set to a rubber material, has good wear resistance and sealing performance, and can increase the sealing performance of the connection between the rear pump cover 3 and the connecting cover 2. A slide groove 61 is provided on the left side of the connecting cover 2. The shape and size of the slide groove 61 match the sealing ring 6, which can ensure that the sealing ring 6 can slide freely in the slide groove 61, and the sealing ring 6 is slidably connected to the inner wall of the slide groove 61.

[0031] Reference Figure 1 , Figure 2 and Figure 3 The outer wall of the guide sleeve 27 is provided with an annular groove 25 near the left side of the rotating rod 26. The annular groove 25 is the installation position of the guide ring 24. The inner wall of the annular groove 25 is slidably connected with a guide ring 24 that connects the guide sleeve 27 and the connecting block 23, thereby driving the connecting block 23 to pull the clamping block 21. The top of the guide ring 24 is hinged with a connecting block 23 that connects the clamping block 21 with the guide ring 24, thereby driving the clamping block 21 to move. The left side of the connecting block 23 is hinged with a clamping block 21 that is inserted into the clamping groove 29 to connect the rear pump cover 3 with the connecting cover 2. The top of the connecting cover 2 is fixedly connected with a positioning block 22 that limits the clamping block 21 to move outward or inward. The positioning block 22 can ensure that the clamping block 21 can slide freely on the outer wall of the positioning block 22, thereby increasing the stability of the movement of the clamping block 21, and the clamping block 21 is slidably connected to the outer wall of the positioning block 22.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The card block 21 is set to an L shape. After the card block 21 is set to an L shape and can be inserted into the card slot 29, the rear pump cover 3 is clamped when connected to the connecting cover 2 to improve the stability of the connection. A card slot 29 is provided at the top of the rear pump cover 3. The card slot 29 is the clamping position of the card block 21, which can ensure that the card block 21 is firmly clamped in the card slot 29. The card block 21 is clamped on the inner wall of the card slot 29. There are multiple groups of card blocks 21, positioning blocks 22, connecting blocks 23, and card slots 29, and the multiple groups of card blocks 21, positioning blocks 22, connecting blocks 23, and card slots 29 are arranged in a circular array with the center point of the connecting cover 2 as the center of the circle, thereby increasing the firmness and stability of the connection between the rear pump cover 3 and the connecting cover 2.

[0033] Reference Figure 2 and Figure 3 The sealing ring 6 and the connecting cover 2 are elastically connected by a spring 62. One end of the spring 62 is fixedly connected to the right side of the sealing ring 6, and the other end of the spring 62 is fixedly connected to the right inner wall of the slide groove 61. When the rear pump cover 3 and the connecting cover 2 are installed, the sealing ring 6 will be squeezed, and the spring 62 will be squeezed at the same time so that the spring 62 is compressed, generating a reverse force, so that the sealing ring 6 always squeezes the rear pump cover 3, thereby improving the sealing performance of the connection between the rear pump cover 3 and the connecting cover 2.

[0034] Working principle: When in use, align the rear pump cover 3 with the connecting cover 2, and then rotate the rotating rod 26. Since the guide sleeve 27 is threadedly connected with the threaded sleeve 28, the guide sleeve 27 rotates and moves on the threaded sleeve 28. The guide ring 24 is slidably connected in the circular groove 25 on the left side of the outer wall of the guide sleeve 27. As the guide sleeve 27 moves, the guide ring 24 moves accordingly, so that the connecting block 23 hinged on the top of the guide ring 24 pulls the hinged block 21 on the left side, and the block 21 slides inward along the outer wall of the positioning block 22 fixed on the top of the connecting cover 2. When the block 21 slides to a suitable position, the block 21 is stuck into the rear pump cover. In the card slot 29 opened at the top of 3, since there are multiple groups of card blocks 21, positioning blocks 22, connecting blocks 23 and card slots 29, and they are arranged in a circular array with the center point of the connecting cover 2 as the center, multiple groups of card blocks 21 are simultaneously inserted into the card slots 29, and the rear pump cover 3 and the connecting cover 2 are stably connected together, which improves the firmness and stability of the connection, and does not require cumbersome bolt alignment, tightening and other operations, saving a lot of installation time and labor costs, and improving the installation efficiency. The card block 21 is set in an L shape, which can clamp the rear pump cover 3 and the connecting cover 2 after being inserted into the card slot 29, further enhancing the stability of the connection.

[0035] When the rear pump cover 3 and the connecting cover 2 are installed, the rear pump cover 3 will squeeze the sealing ring 6 in the left side slide groove 61 of the connecting cover 2. The sealing ring 6 is set to a rubber material with good wear resistance and sealing performance. During the extrusion process, the sealing ring 6 slides in the slide groove 61 and squeezes the spring 62 at the same time. One end of the spring 62 is fixedly connected to the right side of the sealing ring 6, and the other end is fixedly connected to the right inner wall of the slide groove 61. When the sealing ring 6 squeezes the spring 62, the spring 62 is compressed to generate a reverse force. This reverse force makes the sealing ring 6 always squeeze the rear pump cover 3, thereby increasing the sealing performance of the connection between the rear pump cover 3 and the connecting cover 2. The shape and size of the slide groove 61 match the sealing ring 6, ensuring that the sealing ring 6 can slide freely in the slide groove 61, further improving the sealing effect.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A centrifugal pump seal connection structure, comprising a bottom plate (1), characterized in that: A pump body (4) is fixedly mounted on the top of the bottom plate (1), a rear pump cover (3) is fixedly connected to the right side of the pump body (4), a connecting cover (2) is arranged on the right side of the rear pump cover (3), a bearing seat (7) is fixedly mounted on the right side of the connecting cover (2), a motor (5) is fixedly mounted on the right side of the bearing seat (7), a disassembly assembly is arranged on the outer wall of the connecting cover (2), the disassembly assembly comprises a threaded sleeve (28), the threaded sleeve (28) is fixedly connected to the outer wall of the right side bearing seat (7) close to the connecting cover (2), a guide sleeve (27) is threadedly connected to the outer wall of the threaded sleeve (28), a rotating rod (26) is fixedly connected to the outer wall of the guide sleeve (27), and a plurality of groups of rotating rods (26) are arranged, and the plurality of groups of rotating rods (26) are evenly arranged on the outer wall of the guide sleeve (27).

2. A centrifugal pump seal connection structure according to claim 1, characterized in that: A sealing assembly is provided on the left side of the connection cover (2), the sealing assembly comprising a sealing ring (6), a sliding groove (61) is provided on the left side of the connection cover (2), and the sealing ring (6) is slidably connected to the inner wall of the sliding groove (61).

3. A centrifugal pump seal connection structure according to claim 1, characterized in that: An annular groove (25) is provided on the outer wall of the guide sleeve (27) near the left side of the rotating rod (26), and a guide ring (24) is slidably connected to the inner wall of the annular groove (25).

4. A centrifugal pump seal connection structure according to claim 3, characterized in that: A connecting block (23) is hingedly connected to the top end of the guide ring (24), and a clamping block (21) is hingedly connected to the left side of the connecting block (23).

5. A centrifugal pump seal connection structure according to claim 4, characterized in that: A positioning block (22) is fixedly connected to the top end of the connection cover (2), and the clamping block (21) is slidably connected to the outer wall of the positioning block (22).

6. A centrifugal pump seal connection structure according to claim 4, characterized in that: The clamping block (21) is configured to be in an L shape.

7. A centrifugal pump seal connection structure according to claim 5, characterized in that: A slot (29) is provided at the top end of the rear pump cover (3), and the clamping block (21) is clamped on the inner wall of the slot (29). The clamping block (21), the positioning block (22), the connecting block (23), and the slot (29) are provided in a plurality of groups, and the plurality of groups of the clamping block (21), the positioning block (22), the connecting block (23), and the slot (29) are arranged in a circular array with the center point of the connecting cover (2) as the center.

8. A centrifugal pump seal connection structure according to claim 2, characterized in that: The sealing ring (6) is elastically connected to the connecting cover (2) via a spring (62), one end of the spring (62) is fixedly connected to the right side of the sealing ring (6), and the other end of the spring (62) is fixedly connected to the right inner wall of the sliding groove (61).

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