CN219413042U

CN219413042U - Damping device for pump

Info

Publication number: CN219413042U
Application number: CN202320105678.0U
Authority: CN
Inventors: 余伏云; 王群; 蔡凯军
Original assignee: Changsha Guosheng Machinery Co ltd
Current assignee: Changsha Guosheng Machinery Co ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-07-25
Anticipated expiration: 2033-02-03

Abstract

The utility model discloses a damping device for a pump, which comprises a damping base and a pump body fixedly connected to the damping base; the damping base comprises an upper plate, a buffer assembly, a piezoelectric module and a lower plate; the pump body comprises a mounting seat and a shell; a plurality of buffer assemblies are arranged between the upper plate and the lower plate at intervals, and the piezoelectric module is arranged in a gap between the buffer assemblies and is fixed with the upper plate and the lower plate in an interference fit manner; the upper part of the mounting seat is fixedly connected with the shell, and the lower part of the mounting seat is fixedly connected with the upper plate; the upper plate edge is provided with a plurality of LED lamps at intervals, and the LED lamps are electrically connected with the piezoelectric module. Vibration generated by the operation of the pump body is transmitted to the piezoelectric module, so that the piezoelectric module converts mechanical energy into electric energy due to a positive piezoelectric effect to drive the LED lamp to emit light, and the intensity and the flicker frequency of light can intuitively reflect the vibration intensity and the vibration frequency of the pump body everywhere, so that whether the operation of the pump body is stable or not is judged.

Description

Damping device for pump

Technical Field

The utility model relates to the technical field of damping bases, in particular to a damping device for a pump.

Background

The pump can inevitably vibrate in the running process, if the pump body is simply fixed on the rigid base without adopting any damping treatment, vibration generated during the running of the pump body is directly transmitted to the shell and the pipeline, the risk of damaging the pump body and the pipeline is prolonged, the service life of the pump is reduced, and the vibration is often accompanied with noise, so that the vibration of the pump body is required to be counteracted by using an elastic material or an elastic structure to weaken the noise, but the vibration per se during the running of the pump body is also a loss, the existing base can only weaken or buffer the vibration, and a means for reasonably and effectively utilizing the energy of the vibration of the pump body is lacked; in addition, the pump body, particularly a split pump (a single-stage double-suction centrifugal pump), needs to run continuously for a long time, and the existing damping base is also lack of a device capable of intuitively displaying whether the pump body runs stably or not.

Disclosure of Invention

In view of the above-mentioned shortcomings of the existing vibration-absorbing base for pumps, the present utility model provides a vibration-absorbing device for pumps, which can convert periodic reciprocating vibration generated when a pump body operates into electric energy by using a piezoelectric module, and drive an LED lamp with the electric energy, and can be used for marking the position of the pump body base, and also can display the vibration intensity of the base at each place according to the light intensity to observe whether the pump body operates steadily.

In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:

a damping device for a pump comprises a damping base and a pump body fixedly connected to the damping base; the damping base comprises an upper plate, a buffer assembly, a piezoelectric module and a lower plate; the pump body comprises a mounting seat and a shell; a plurality of buffer assemblies are arranged between the upper plate and the lower plate at intervals, and the piezoelectric module is arranged in a gap between the buffer assemblies and is fixed with the upper plate and the lower plate in an interference fit manner; the upper part of the mounting seat is fixedly connected with the shell, and the lower part of the mounting seat is fixedly connected with the upper plate; the upper plate edge is provided with a plurality of LED lamps at intervals, and the LED lamps are electrically connected with the piezoelectric module.

The piezoelectric module comprises a metal shell and a piezoelectric sheet; the metal shell is bowl-shaped and symmetrically adhered to two sides of the piezoelectric sheet; the thickness of the metal shell is gradually increased from the middle part to the bonding part; the metal shell can increase the mechanical strength of the whole piezoelectric module, so that the piezoelectric module can bear part of the weight of the pump body and the acting force generated by vibration when the pump body operates; when the pump body runs, the pump body vibrates to cause the relative motion between the upper plate and the lower plate, the piezoelectric module between the upper plate and the lower plate is extruded, the piezoelectric sheet is deformed, opposite constraint charges appear on the surface of the material due to positive piezoelectric effect, instantaneous discharge is generated, and the phenomenon can be utilized to generate electricity to drive the LED lamp.

The base also comprises a voltage reduction module, a rectifying module and a storage battery which are electrically connected in sequence; the voltage reduction module is electrically connected to the piezoelectric module; the piezoelectric sheet is often high in voltage and unstable enough to be directly used for driving the sensor due to instantaneous discharge generated by positive piezoelectric effect, and the piezoelectric sheet needs to be subjected to voltage reduction and rectification to become stable direct current to charge a storage battery, and then the storage battery is used for discharging to supply power for the sensor.

The buffer assembly comprises a support rod, a first buffer spring, a guide cylinder and a second buffer spring; the guide cylinder is embedded in the lower plate, the upper end of the support rod is fixedly connected with the upper plate, and the lower end of the support rod is arranged in the guide cylinder; the first buffer spring is arranged between the upper plate and the lower plate and sleeved outside the support rod; the second buffer spring is arranged between the lower end of the supporting rod and the lower plate.

A first gasket is arranged between the first buffer spring and the upper plate, and a second gasket is arranged between the first buffer spring and the lower plate; the periphery of the guide cylinder is provided with a limiting cavity, and the surface of the guide cylinder is provided with a strip-shaped groove; a limiting rod is fixedly connected to the lower end of the supporting rod; the limiting rod passes through the strip-shaped groove, and two ends of the limiting rod are positioned in the limiting cavity.

A baffle plate is arranged on the lower side of the lower plate; a buffer rubber pad is arranged on one side of the partition plate away from the lower plate; the partition plate is used for directly contacting with a base mounting surface (such as the ground), so that the base can be integrally lifted to play a role in moisture resistance, and in addition, the buffer rubber pad can play a role in certain buffering and skid resistance.

The implementation of the utility model has the advantages that:

the piezoelectric module is arranged between the upper plate and the lower plate of the user, so that part of vibration generated when the pump body operates is converted into electric energy, the LED lamp is driven, the light intensity and the flicker frequency of the LED lamp are utilized to intuitively reflect whether the operation of the pump body is stable or not, and the operation condition of the pump body can be primarily judged; in addition, the electric energy generated by the piezoelectric module can be stored through the storage battery to be used for supplying power to the sensor in the pump body, so that the utilization rate of the energy is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a pump shock absorber according to the present utility model;

FIG. 2 is a cross-sectional view of a base according to an embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of the reference numeral A of FIG. 2;

fig. 4 is a front view and a cross-sectional view of a piezoelectric module according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, 2, 3 and 4, a damping device for a pump includes a damping base and a pump body fixedly connected to the damping base; the damping base comprises an upper plate 1, a buffer assembly 2, a piezoelectric module 3 and a lower plate 4; the pump body comprises a mounting seat 5 and a shell 6; a plurality of buffer assemblies 2 are arranged between the upper plate 1 and the lower plate 4 at intervals, and the piezoelectric modules 3 are arranged in gaps between the buffer assemblies 2 and are fixed with the upper plate 1 and the lower plate 4 in an interference fit manner; the upper part of the mounting seat 5 is fixedly connected with the shell 6, four corners of the mounting seat 5 are provided with screw holes, and the mounting seat is fixedly connected with the upper plate 1 through screws; a plurality of LED lamps 11 are arranged at intervals on the edge of the upper plate 1, and the LED lamps 11 are electrically connected with the piezoelectric module 3.

In this embodiment, the buffer assemblies 2 are disposed at the edges of the upper plate 1 and the lower plate 4, and the number of books of the buffer assemblies 2 on each side is four, and the buffer assemblies 2 are disposed at equal intervals; the piezoelectric modules 3 are also arranged at the edges and positioned between the two buffer components 2, and the number of each side is three;

in practical applications, the number and specific layout of the buffer assemblies 2 should be properly adjusted according to the size and weight of the pump body, and the number and layout of the piezoelectric modules 3 should be modified accordingly.

The piezoelectric module 3 includes a metal case 31 and a piezoelectric sheet 32; the metal shell 31 is bowl-shaped and symmetrically adhered to two sides of the piezoelectric sheet 32; the thickness of the metal shell is gradually increased (continuously changed) from the middle part to the bonding part, so that the shape with thin middle part and thick edge is formed, the whole thickness of the metal shell can be reduced as much as possible on the premise of not reducing the strength, and meanwhile, the stress of the bonding part between the metal shell and the edge of the piezoelectric sheet 32 can be reduced due to the slightly thick edge part; the metal shell 31 can increase the mechanical strength of the whole piezoelectric module 3, so that the whole piezoelectric module can bear part of the weight of the pump body and the acting force generated by vibration when the pump body operates; in practical application, the piezoelectric sheet 32 is a piezoelectric ceramic sheet, and is bonded with the metal shell 31 by epoxy resin;

when the pump body operates, the pump body vibrates to cause relative motion between the upper plate 1 and the lower plate 4, the piezoelectric module 3 between the upper plate 1 and the lower plate 4 is extruded, the piezoelectric sheet 32 is deformed, opposite bound charges appear on the surface of a material due to positive piezoelectric effect, instantaneous discharge is generated, electricity can be generated to drive the LED lamp 11 by utilizing the phenomenon (in the simplest case, a group of wires are arranged on the surface of the piezoelectric sheet 32 to lead out the charges and are connected with the LED lamp 11), obviously, the intensity and the flicker frequency of light are positively related to the discharge voltage and the discharge frequency of the piezoelectric sheet 32, and the discharge voltage and the discharge frequency of the latter are positively related to the vibration intensity and the frequency of the pump body everywhere, in other words, whether the pump body is in stable operation can be judged by naked eyes through the light intensity and the flicker frequency of the LED lamp 11 everywhere, and in addition, the flickering LED lamp 11 can be used for marking the position of a base in the night, and in practical application, the LED lamp 11 should be arranged as close to the position of the piezoelectric module 3 as possible.

Preferably, a voltage reduction module, a rectifying module and a storage battery which are electrically connected in sequence can be further arranged; the voltage reduction module is electrically connected to the piezoelectric module 3; the piezoelectric sheet 32 is often high in voltage due to instantaneous discharge generated by positive piezoelectric effect, is not stable enough and cannot be directly used for driving the sensor, and needs to be subjected to voltage reduction and rectification to become stable direct current so as to charge a storage battery, and then the storage battery is used for discharging to supply power for various sensors;

in practical application, the voltage reducing module, the rectifying module and the storage battery can be integrated into the same shell to form a functional module, the functional module can be arranged at other positions (not shown in the drawing) according to the practical environment of the base installation and is connected with the piezoelectric module 3 through cables, the influence caused by vibration of the pump body can be difficult to avoid due to relatively poor mechanical strength of the electronic device, the problem that the internal device can generate hidden cracks or desoldering due to long-time vibration is solved, meanwhile, the problem that the leakage phenomenon can occur when the pump body operates is considered, the corrosion of the internal components or the short circuit of the circuit is caused, if the problems are avoided, the vibration and moisture prevention treatment is required to be carried out on the functional module, the cost is obviously increased, and the functional module is arranged at other positions and only suitable moisture prevention and reinforcement treatment is required to be carried out on the cable connection position.

The buffer assembly 2 comprises a support rod 21, a first buffer spring 22, a guide cylinder 23 and a second buffer spring 24; the guide cylinder 23 is embedded in the lower plate 4, the upper end of the support rod 21 is fixedly connected with the upper plate 1, and the lower end of the support rod is arranged in the guide cylinder 23; the first buffer spring 22 is arranged between the upper plate 1 and the lower plate 4 and sleeved outside the support rod 21; the second buffer spring 24 is provided between the lower end of the support rod 21 and the lower plate 4.

A first gasket 25 is arranged between the first buffer spring 22 and the upper plate 1, and a second gasket 26 is arranged between the first gasket 25 and the lower plate 4, wherein the first gasket 25 is fixedly connected below the upper plate 1, and a through hole (the diameter is smaller than the length of the limiting rod 28) is arranged in the middle of the second gasket 26; the periphery of the guide cylinder 23 is provided with a limiting cavity 27, the surface of the guide cylinder 23 is provided with strip-shaped grooves (which are axially distributed along the guide cylinder 23 and have a width slightly larger than the diameter of the limiting rod 28 and a length smaller than the height of the guide cylinder 23); a limiting rod 28 is fixedly connected to the lower end of the supporting rod 21; the limiting rod 28 passes through the strip-shaped groove, and two ends of the limiting rod are positioned in the limiting cavity 27;

the guide cylinder 23 can limit the moving path of the support rod 21, prevent the support rod 21 from falling to one side, and the limit rod 28 and the limit cavity 27 can prevent the support rod 21 from falling out of the guide cylinder 23; in practical application, the first buffer spring 22 and the second buffer spring 24 are both high-strength coarse and hard springs (with large elastic coefficients), so that most of vibration generated during operation of the pump body can be absorbed, deformation is tiny, an effective vibration-damping effect can be achieved, and in addition, a part of vibration is absorbed by the piezoelectric module 3 and converted into electric energy.

In practical application, the casing 6 is provided with an inlet flange 61 and an outlet flange 62; the surfaces of the inlet flange 61 and the outlet flange 62 are each provided with a pressure tap 63.

Preferably, a fluid pressure sensor 64 is disposed in the pressure tap 63; the fluid pressure sensor 64 may be powered by a battery for sensing inlet and outlet fluid pressure during operation of the pump body.

A partition 41 is arranged on the lower side of the lower plate 4; a buffer rubber pad 42 is arranged on one side of the partition plate 41 away from the lower plate 4; the partition 41 is used for directly contacting with a base mounting surface (such as the ground), so that the base can be integrally lifted to play a role in moisture resistance, and the buffer rubber pad 42 can play a role in damping and skid resistance to a certain extent.

The implementation of the utility model has the advantages that:

the piezoelectric module is arranged between the upper plate and the lower plate of the user, so that part of vibration generated when the pump body operates is converted into electric energy, the LED lamps are driven, whether the operation of the pump body is stable or not is intuitively reflected by utilizing the difference of the light intensity and the flicker frequency of each LED lamp, and the operation condition of the pump body can be preliminarily judged; in addition, the electric energy generated by the piezoelectric module can be stored through the storage battery to be used for supplying power to the sensor in the pump body, so that the utilization rate of the energy is further improved.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The damping device for the pump comprises a damping base and a pump body fixedly connected to the damping base, and is characterized in that the damping base comprises an upper plate (1), a buffer component (2), a piezoelectric module (3) and a lower plate (4); the pump body comprises a mounting seat (5) and a shell (6); a plurality of buffer assemblies (2) are arranged between the upper plate (1) and the lower plate (4) at intervals, and the piezoelectric module (3) is arranged in a gap between the buffer assemblies (2) and is fixed with the upper plate (1) and the lower plate (4) in an interference fit manner; the upper part of the mounting seat (5) is fixedly connected with the shell (6), and the lower part of the mounting seat is fixedly connected with the upper plate (1); a plurality of LED lamps (11) are arranged at the edge of the upper plate (1) at intervals, and the LED lamps (11) are electrically connected with the piezoelectric module (3).

2. Damping device for pumps according to claim 1, characterized in that the piezoelectric module (3) comprises a metal casing (31) and a piezoelectric sheet (32); the metal shell (31) is bowl-shaped and symmetrically adhered to two sides of the piezoelectric sheet (32); the thickness of the metal shell gradually increases from the middle part to the bonding part.

3. The damping device for a pump according to claim 2, further comprising a voltage reducing module, a rectifying module and a battery electrically connected in this order; the voltage reduction module is electrically connected to the piezoelectric module (3).

4. The pump damper device according to claim 1, wherein the damper assembly (2) includes a support rod (21), a first damper spring (22), a guide cylinder (23), and a second damper spring (24); the guide cylinder (23) is embedded in the lower plate (4), the upper end of the support rod (21) is fixedly connected with the upper plate (1), and the lower end of the support rod is arranged in the guide cylinder (23); the first buffer spring (22) is arranged between the upper plate (1) and the lower plate (4) and sleeved outside the support rod (21); the second buffer spring (24) is arranged between the lower end of the supporting rod (21) and the lower plate (4).

5. The pump damper device according to claim 4, wherein a first spacer (25) is provided between the first damper spring (22) and the upper plate (1), and a second spacer (26) is provided between the first damper spring and the lower plate (4); a limiting cavity (27) is formed in the periphery of the guide cylinder (23), and a strip-shaped groove is formed in the surface of the guide cylinder (23); a limiting rod (28) is fixedly arranged at the lower end of the supporting rod (21); the limiting rod (28) passes through the strip-shaped groove, and two ends of the limiting rod are positioned in the limiting cavity (27).

6. Damping device for pumps according to claim 1, characterized in that the lower side of the lower plate (4) is provided with a partition (41); a buffer rubber pad (42) is arranged on one side, away from the lower plate (4), of the partition plate (41).