Vibration isolation structure for centrifugal pump

Abstract

The utility model relates to the technical field of centrifugal pump vibration isolation and discloses a vibration isolation structure for a centrifugal pump, which comprises a base, a plurality of damping springs are connected to the peripheral side of the base, a supporting plate is fixedly connected to the upper surfaces of the damping springs, and a limiting assembly is fixedly connected to the lower surface of the supporting plate. The lower end of the limiting assembly is fixedly connected with the upper surface of the base, a groove is formed in the upper surface of the base, the lifting assembly is fixedly connected into the groove, when the centrifugal pump works, noise and vibration conduction are easily generated, impact force is absorbed and energy is stored through springs of the damping springs, and the damping springs are arranged on the base. The damper is arranged on the supporting plate, kinetic energy of the spring is consumed through the damper, impact force and vibration are reduced, meanwhile, after the damping spring is damaged, the supporting plate can be jacked up through the lifting assembly, the damping spring is restored to the original state, and then the damping spring can be replaced and detached.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pump vibration isolation, in particular to a vibration isolation structure for a centrifugal pump. Background Art

[0002] At present, during the operation of centrifugal pumps, due to the vibration of the motor and pump body, noise and vibration transmission are easy to occur, which has adverse effects on the surrounding environment and the equipment used. The existing vibration isolation structure is often complex, with poor vibration isolation effect and difficult maintenance. Therefore, it is necessary to design a new vibration isolation structure for centrifugal pumps to solve the above problems.

[0003] The patent with the current publication number CN220396118U discloses a shock-absorbing pedestal for a centrifugal pump, including a base, a connecting seat is provided on the upper end surface of the base, a support plate is fixedly provided on the top of the connecting seat, a plurality of first damping springs are fixedly provided between the base and the support plate on the outer side of the connecting seat, a connecting plate is provided on the upper end surface of the support plate, a motor is fixedly provided on one side of the connecting plate, a connecting groove is provided on one side of the connecting plate, the output end of the motor extends into the connecting groove through a rotating shaft and is fixedly connected with a double-threaded screw, both ends of the outer side of the double-threaded screw are slidably connected with a clamping plate, and the connecting seat includes a connecting shell. The above-mentioned technology can effectively increase the stability of the vibration isolation system of the water pump, improve the vibration isolation effect, effectively reduce shock, enhance the structural strength of the shock-absorbing pedestal, reduce the center of gravity of the vibration isolation system, and enhance the service life of the shock-absorbing pedestal.

[0004] However, the above technology still has the following problems:

[0005] During the operation of a centrifugal pump, the vibration of the motor and pump body acts on the damping spring for a long time, which may cause fatigue, breakage or deformation of the spring material. If the damping spring is exposed to harsh environments such as high humidity and corrosion for a long time, its material may corrode and age, resulting in performance degradation or even failure. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a vibration isolation structure for a centrifugal pump, which solves the noise and vibration transmission generated by the operation of the centrifugal pump by arranging a damping spring, a limit assembly and a lifting device.

[0007] The utility model provides the following technical solution: a vibration isolation structure for a centrifugal pump, comprising a base, a plurality of damping springs are connected to the circumferential side of the base, the upper surface of the damping spring is fixedly connected to a support plate, the lower surface of the support plate is fixedly connected to a limiting component, the lower end of the limiting component is fixedly connected to the upper surface of the base, a groove is provided on the upper surface of the base, and a lifting component is fixedly connected in the groove.

[0008] Furthermore, rubber blocks are fixedly connected to the lower surface of the base and the upper surface of the support plate.

[0009] Furthermore, threaded holes are provided on the upper surface and the lower surface of the damping spring, and penetrate the lower surface of the support plate and the upper surface of the base respectively, and bolts are threadedly connected in the threaded holes.

[0010] Furthermore, the limiting assembly includes an upper plate fixed on the lower surface of the support plate, a slide groove is provided on the lower surface of the upper plate, a lower plate is fixed on the upper surface of the base, and the upper end of the lower plate is slidably connected in the slide groove.

[0011] Furthermore, the lifting assembly may be a cylinder, and the lifting assembly may be divided into two groups, each group having two components, and forming a linear array in the horizontal direction.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] This vibration isolation structure for centrifugal pumps can effectively alleviate the noise and vibration transmission generated by the operation of the centrifugal pump through the combined effects of the damping spring, the limit assembly and the lifting assembly, and prevent the centrifugal pump from having problems due to excessive vibration intensity. At the same time, it can also reduce noise, optimize the working environment, and facilitate the replacement of damaged damping springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure inside the utility model;

[0016] Figure 3 It is a cross-sectional three-dimensional structural schematic diagram of the utility model;

[0017] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0018] In the figure: 1. base; 2. damping spring; 3. support plate; 4. limit assembly; 401. upper plate; 402. slide groove; 403. lower plate; 5. groove; 6. lifting assembly; 7. rubber block; 8. bolt. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 4A vibration isolation structure for a centrifugal pump includes a base 1, a plurality of damping springs 2 are connected to the circumferential side of the base 1, a support plate 3 is fixedly connected to the upper surface of the damping spring 2, a limit assembly 4 is fixedly connected to the lower surface of the support plate 3, a lower end of the limit assembly 4 is fixedly connected to the upper surface of the base 1, a groove 5 is provided on the upper surface of the base 1, and a lifting assembly 6 is fixedly connected in the groove 5.

[0021] A vibration isolation structure for a centrifugal pump in the utility model is similar to the existing shock-absorbing pedestal structure for a centrifugal pump. For example, the patent with publication number CN220396118U discloses a shock-absorbing pedestal for a centrifugal pump. The main improvement of the utility model is that a damping spring 2 is arranged between the base 1 and the support plate 3 to solve the noise and vibration transmission generated by the operation of the centrifugal pump, and a lifting assembly 6 is arranged on the support plate 3 to support the base 1, so as to facilitate the replacement of the damaged damping spring 2. Figures 1 to 4 As shown, when the vibration isolation structure for the centrifugal pump in the utility model is used, the centrifugal pump is installed on the base 1. During the use of the centrifugal pump, the spring of the damping spring 2 is used to absorb impact force and store energy, and the kinetic energy of the spring is consumed by the damper to reduce impact force and vibration. At the same time, the rubber block 7 can also play a certain shock-absorbing role. During this process, the limit component 4 ensures that the base 1 and the support plate 3 are in a parallel state in the vertical direction to prevent damage caused by the change in the installation angle of the damping spring 2 due to the shaking of the support plate 3. If the damping spring 2 is damaged, remove the bolt 8 and drive the lifting component 6. The lifting component 6 lifts the support plate 3, and the damping spring 2 is separated from the base 1, and the good damping spring 2 can be replaced.

[0022] like Figure 1 As shown, the lower surface of the base 1 and the upper surface of the support plate 3 are both fixedly connected with rubber blocks 7 .

[0023] Specifically, the centrifugal pump is installed on the support plate 3, and firstly a certain shock absorption effect is performed by the rubber block 7, and the rubber block 7 under the base 1 further alleviates the vibration.

[0024] like Figure 4 As shown, threaded holes are provided on the upper and lower surfaces of the damping spring 2 and penetrate the lower surface of the support plate 3 and the upper surface of the base 1 respectively, and bolts 8 are threadedly connected in the threaded holes.

[0025] Specifically, the threaded hole is provided to facilitate the installation of the damping spring 2. At the same time, when the damping spring 2 is damaged in the later stage, the restriction of the damping spring 2 by the bolt 8 can be removed, and the damping spring 2 can be quickly removed and repaired and replaced.

[0026] like Figure 2 or Figure 3As shown, the limiting assembly 4 includes an upper plate 401 fixed on the lower surface of the support plate 3, a slide groove 402 is provided on the lower surface of the upper plate 401, a lower plate 403 is fixed on the upper surface of the base 1, and the upper end of the lower plate 403 is slidably connected to the slide groove 402.

[0027] Specifically, when the centrifugal pump is working, the noise and vibration generated by the damping spring 2 is transmitted, and the support plate 3 will also shake. The lower plate 403 is fixed to the base 1. The support plate 3 shakes, driving the upper plate 401 to reciprocate up and down. The limit assembly 4 ensures that the support plate 3 moves in the vertical direction to avoid changes in the installation angle of the damping spring 2, thereby causing damage.

[0028] like Figure 1 or Figure 3 As shown, the lifting assembly 6 can be a cylinder, and the lifting assembly 6 is divided into two groups, each group has two components, and they form a linear array in the horizontal direction.

[0029] Specifically, after the damping spring 2 is damaged, first release the restriction of the bolt 8, start the cylinder, and use the cylinder to lift the support plate 3 until the support plate 3 no longer exerts pressure on the damping spring 2. The damaged damping spring 2 can be removed. During this process, the two groups of cylinders support the support plate 3 at the same time to prevent the support plate 3 from tilting and destroying the installation angle of other damping springs 2, thereby causing damage to them.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A vibration isolation structure for a centrifugal pump, comprising a base (1), characterized in that: A plurality of damping springs (2) are connected to the peripheral side of the base (1); a support plate (3) is fixedly connected to the upper surface of the damping spring (2); a limit assembly (4) is fixedly connected to the lower surface of the support plate (3); the lower end of the limit assembly (4) is fixedly connected to the upper surface of the base (1); a groove (5) is provided on the upper surface of the base (1); and a lifting assembly (6) is fixedly connected in the groove (5).

2. A vibration isolation structure for a centrifugal pump according to claim 1, characterized in that: The lower surface of the base (1) and the upper surface of the support plate (3) are both fixedly connected with a rubber block (7).

3. A vibration isolation structure for a centrifugal pump according to claim 1 or 2, characterized in that: The upper surface and the lower surface of the damping spring (2) are both provided with threaded holes, which respectively penetrate the lower surface of the support plate (3) and the upper surface of the base (1), and the threaded holes are threadedly connected with bolts (8).

4. A vibration isolation structure for a centrifugal pump according to claim 1 or 2, characterized in that: The limiting assembly (4) comprises an upper plate (401) fixed on the lower surface of the support plate (3), a slide groove (402) is provided on the lower surface of the upper plate (401), a lower plate (403) is fixed on the upper surface of the base (1), and the upper end of the lower plate (403) is slidably connected in the slide groove (402).

5. The vibration isolation structure for a centrifugal pump according to claim 3, characterized in that: The limiting assembly (4) comprises an upper plate (401) fixed on the lower surface of the support plate (3), a slide groove (402) is provided on the lower surface of the upper plate (401), a lower plate (403) is fixed on the upper surface of the base (1), and the upper end of the lower plate (403) is slidably connected in the slide groove (402).

6. A vibration isolation structure for a centrifugal pump according to claim 1, 2 or 5, characterized in that: The lifting components (6) may be cylinders. The lifting components (6) are divided into two groups, each group having two components, and are arranged in a linear array in the horizontal direction.

7. A vibration isolation structure for a centrifugal pump according to claim 3, characterized in that: The lifting components (6) may be cylinders. The lifting components (6) are divided into two groups, each group having two components, and are arranged in a linear array in the horizontal direction.

8. The vibration isolation structure for a centrifugal pump according to claim 4, characterized in that: The lifting components (6) may be cylinders. The lifting components (6) are divided into two groups, each group having two components, and are arranged in a linear array in the horizontal direction.

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