Multi-series pump structure with good damping effect

Abstract

The utility model discloses a multi-series pump structure with a good damping effect, which comprises a quadruple pump and further comprises a transition structure, the inner wall of the transition structure is meshed with a sliding bearing, and the inner wall of the sliding bearing is rotatably connected with a rotating structure, and relates to the technical field of quadruple pumps. According to the multi-series pump structure with the good damping effect, rotating structures are connected in a three-half-shaft mode, the problem that pump extension is too long due to four-series connection is solved, it is guaranteed that better coaxiality is achieved in a long stroke through the three-half-shaft connection mode, and therefore vibration of the pump is reduced, and due to the arrangement of a transition structure and a sliding bearing, the service life of the pump is prolonged. According to the series pump, vibration generated when the rotating structure operates at a high speed is shared by the transition structure and the sliding bearing, the PV value of each bearing is effectively shared through the transition structure, and therefore the service life of the series pump is prolonged, and the quality of the series pump is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of quadruple pump technology, specifically a multi-unit pump structure with good shock absorption effect. Background Technology

[0002] A multi-tandem pump is a special type of pump equipment consisting of multiple pumps connected in series. This design can effectively increase the pump's head, enabling liquids to be transported to higher positions or over longer distances. It can meet the complex transportation needs of large flow rates and high heads, improve transportation efficiency, and reduce energy consumption.

[0003] Existing tandem gear pumps generate vibrations during operation, which affect their internal rotating structure. This vibration can also cause loosening and wear of internal parts. If the vibration is transmitted to connected pipes and equipment, it can affect the stability and reliability of the entire hydraulic system. At the same time, the vibration and wear of the gear pump can accelerate pump damage and reduce its service life. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-unit pump structure with good shock absorption. By using a transition structure and sliding bearings, the PV value of each bearing is effectively distributed, thereby extending the service life of each bearing and ensuring the quality of the four-unit pump.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-unit pump structure with good shock absorption, comprising: a four-unit pump, and a transition structure. The inner wall of the transition structure is engaged with a sliding bearing, and the inner wall of the sliding bearing is rotatably connected to a rotating structure. The four-unit pump includes a first pump body, a second pump body is disposed outside the first pump body, a third pump body is disposed outside the second pump body, and a fourth pump body is disposed outside the third pump body. The transition structure includes a first transition plate, a second transition plate is disposed outside the first transition plate, a third transition plate is disposed outside the second transition plate, and a fourth transition plate is disposed outside the third transition plate. The transition structure is fixedly connected to the four-unit pump, preventing the four-unit pump from being directly subjected to vibrations and impacts generated during pump operation.

[0008] Preferably, one side of the first pump body is fixedly connected to the first transition plate, the other side of the first pump body is fixedly connected to the second transition plate, the side of the second transition plate away from the first pump body is fixedly connected to the second pump body, the side of the second pump body away from the second transition plate is fixedly connected to the third transition plate, the side of the third transition plate away from the second pump body is fixedly connected to the third pump body, the side of the third pump body away from the third transition plate is fixedly connected to the fourth transition plate, and the side of the fourth transition plate away from the third pump body is fixedly connected to the fourth pump body. The transition structure avoids contact between the four-unit pump and the rotating structure, making it difficult for the vibration generated by the high-speed operation of the rotating structure to affect the four-unit pump.

[0009] Preferably, the inner walls of the first transition plate, the second transition plate, the third transition plate and the fourth transition plate are respectively fitted with sliding bearings. Through the arrangement of the transition structure and the sliding bearings, the vibration generated when the rotating structure is working reduces the damage to the sliding bearings and extends the service life of the sliding bearings.

[0010] Preferably, the rotating structure includes a rotating shaft, a first half-shaft is fixedly connected to the outer wall of the rotating shaft, a second half-shaft is fixedly connected to the outer wall of the first half-shaft, and a third half-shaft is fixedly connected to the outer wall of the second half-shaft. By using a three-shaft configuration, the problem of excessive pump shaft extension is reduced, thereby reducing pump vibration.

[0011] Preferably, the outer wall of the rotating shaft is slidably connected with a sliding bearing, and the outer walls of the first half-shaft, the second half-shaft and the third half-shaft are all slidably connected with sliding bearings. The rotational connection between the rotating structure and the sliding bearings facilitates the transmission of vibrations generated during the operation of the rotating structure to the transition structure while assisting the rotating structure in rotating.

[0012] (III) Beneficial Effects

[0013] This utility model provides a multi-unit pump structure with good shock absorption. It has the following beneficial effects:

[0014] (i) The multi-series pump structure with good shock absorption connects the rotating structure through a three-shaft connection, which reduces the problem of excessive pump extension caused by four-series connection. The connection method of the three-shaft connection ensures better coaxiality during the longer stroke, thereby reducing pump vibration.

[0015] (II) The multi-series pump structure with good shock absorption effect, the setting of transition structure and sliding bearing, so that the vibration of the rotating structure during high-speed operation is shared by the transition structure and sliding bearing, and through the transition structure, the PV value of each bearing is effectively distributed, thereby extending the service life of the series pump and ensuring the quality of the series pump. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a partial structural diagram of the pump body of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the pump body of this utility model.

[0020] In the diagram: 1. Quadruple pump; 10. First pump body; 11. Second pump body; 12. Third pump body; 13. Fourth pump body; 2. Transition structure; 20. First transition plate; 21. Second transition plate; 22. Third transition plate; 23. Fourth transition plate; 3. Rotating structure; 30. Shaft; 31. First half-shaft; 32. Second half-shaft; 33. Third half-shaft; 4. Sliding bearing. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a multi-series pump structure with good shock absorption effect, including: a quadruple pump 1, and a transition structure 2. The inner wall of the transition structure 2 is engaged with a sliding bearing 4, and the inner wall of the sliding bearing 4 is rotatably connected to a rotating structure 3. The friction and vibration caused by the high-speed rotation of the rotating structure 3 are shared by the transition structure 2 and the sliding bearing 4, reducing the wear and vibration of the quadruple pump 1, thereby extending the service life of the series pump and ensuring the quality of the series pump.

[0023] The quadruple pump 1 includes a first pump body 10, a second pump body 11 disposed outside the first pump body 10, a third pump body 12 disposed outside the second pump body 11, and a fourth pump body 13 disposed outside the third pump body 12. The transition structure 2 includes a first transition plate 20, a second transition plate 21 disposed outside the first transition plate 20, a third transition plate 22 disposed outside the second transition plate 21, and a fourth transition plate 23 disposed outside the third transition plate 22. One side of the first pump body 10 is fixedly connected to the first transition plate 20, and the other side of the first pump body 10 is fixedly connected to the second transition plate 21. The side of the second transition plate 21 away from the first pump body 10 is fixedly connected to the second pump body 11, and the side of the second pump body 11 away from the second transition plate 21 is fixedly connected to the third transition plate 23. The transition plate 22 is fixedly connected, the side of the third transition plate 22 away from the second pump body 11 is fixedly connected to the third pump body 12, the side of the third pump body 12 away from the third transition plate 22 is fixedly connected to the fourth transition plate 23, and the side of the fourth transition plate 23 away from the third pump body 12 is fixedly connected to the fourth pump body 13. The inner walls of the first transition plate 20, the second transition plate 21, the third transition plate 22 and the fourth transition plate 23 are respectively meshed with sliding bearings 4. The vibration of the rotating structure 3 during high-speed operation is shared by the transition structure 2 and the sliding bearings 4, which reduces the impact of the rotating structure 3 on the four-unit pump 1 during high-speed operation. Moreover, the transition structure 2 effectively distributes the PV value of each bearing, thereby extending the service life of the series pump and ensuring the quality of the series pump.

[0024] The rotating structure 3 includes a rotating shaft 30, a first half-shaft 31 fixedly connected to the outer wall of the rotating shaft 30, a second half-shaft 32 fixedly connected to the outer wall of the first half-shaft 31, a third half-shaft 33 fixedly connected to the outer wall of the second half-shaft 32, and a sliding bearing 4 slidably connected to the outer wall of the rotating shaft 30. The outer walls of the first half-shaft 31, the second half-shaft 32, and the third half-shaft 33 are all slidably connected to the sliding bearing 4. By rotating the rotating shaft 30, the first half-shaft 31, the second half-shaft 32, and the third half-shaft 33 are driven to rotate. By using the three-shaft configuration, the problem of excessive pump shaft extension is reduced, and pump vibration is reduced.

[0025] Working principle

[0026] When in use, the four-unit pump 1 is started, causing the rotating structure 3 to rotate. The friction and vibration caused by the high-speed rotation of the rotating structure 3 are shared by the transition structure 2 and the sliding bearing 4, reducing the wear and vibration of the four-unit pump 1, thereby extending the service life of the series pump and ensuring the quality of the series pump.

[0027] When the multi-series pumps are operating, starting the quadruple pump 1 causes the shaft 30 to rotate, resulting in the first half-shaft 31, the second half-shaft 32, and the third half-shaft 33 rotating inside the sliding bearing 4. The friction and vibration generated by the high-speed rotation of the shaft 30 are shared by the first transition plate 20, the second transition plate 21, and the sliding bearing 4; the friction and vibration generated by the high-speed rotation of the first half-shaft 31 are shared by the third transition plate 22 and the sliding bearing 4; and the friction and vibration generated by the high-speed rotation of the second half-shaft 32 and the third half-shaft 33 are shared by the fourth transition plate 23 and the sliding bearing 4. This reduces the vibration of the rotating shaft 30 on the first pump body 10, the vibration of the first half-shaft 31 on the second pump body 11, the vibration of the second half-shaft 32 on the third pump body 12, and the vibration of the third half-shaft 33 on the fourth pump body 13. The vibration of the rotating structure 3 during high-speed operation is shared by the transition structure 2 and the sliding bearing 4, reducing the impact of the rotating structure 3 on the quadruple pump 1 during high-speed operation. Furthermore, the transition structure 2 effectively distributes the PV values ​​of each bearing, thereby extending the service life of the series pump and ensuring its quality.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-unit pump structure with good vibration damping effect, comprising: The four-unit pump (1) is characterized in that it further includes: a transition structure (2), wherein a sliding bearing (4) is engaged on the inner wall of the transition structure (2), and a rotating structure (3) is rotatably connected to the inner wall of the sliding bearing (4); The quadruple pump (1) includes a first pump body (10), a second pump body (11) is provided outside the first pump body (10), a third pump body (12) is provided outside the second pump body (11), and a fourth pump body (13) is provided outside the third pump body (12). The transition structure (2) includes a first transition plate (20), a second transition plate (21) is disposed outside the first transition plate (20), a third transition plate (22) is disposed outside the second transition plate (21), and a fourth transition plate (23) is disposed outside the third transition plate (22).

2. The multi-unit pump structure with good vibration damping effect according to claim 1, characterized in that: One side of the first pump body (10) is fixedly connected to the first transition plate (20), and the other side of the first pump body (10) is fixedly connected to the second transition plate (21). The side of the second transition plate (21) away from the first pump body (10) is fixedly connected to the second pump body (11). The side of the second pump body (11) away from the second transition plate (21) is fixedly connected to the third transition plate (22). The side of the third transition plate (22) away from the second pump body (11) is fixedly connected to the third pump body (12). The side of the third pump body (12) away from the third transition plate (22) is fixedly connected to the fourth transition plate (23). The side of the fourth transition plate (23) away from the third pump body (12) is fixedly connected to the fourth pump body (13).

3. The multi-unit pump structure with good vibration damping effect according to claim 1, characterized in that: The inner walls of the first transition plate (20), the second transition plate (21), the third transition plate (22) and the fourth transition plate (23) are respectively fitted with sliding bearings (4).

4. The multi-unit pump structure with good vibration damping effect according to claim 3, characterized in that: The rotating structure (3) includes a rotating shaft (30), a first half-shaft (31) is fixedly connected to the outer wall of the rotating shaft (30), a second half-shaft (32) is fixedly connected to the outer wall of the first half-shaft (31), and a third half-shaft (33) is fixedly connected to the outer wall of the second half-shaft (32).

5. The multi-unit pump structure with good vibration damping effect according to claim 4, characterized in that: The outer wall of the rotating shaft (30) is slidably connected with a sliding bearing (4), and the outer walls of the first half shaft (31), the second half shaft (32) and the third half shaft (33) are all slidably connected with sliding bearings (4).

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