CN118030498A - Low-noise pumping equipment - Google Patents

Abstract

The invention relates to the technical field of pumping equipment, and discloses low-noise pumping equipment, which comprises a shell, a conveying pipeline arranged on the inner side of the shell, a feeding screw rod arranged in the conveying pipeline, a sound absorption mechanism arranged on the inner side of the shell, and a noise reduction mechanism arranged on the inner wall of the shell, wherein the sound absorption mechanism comprises a sound absorption mechanism, a sound absorption mechanism and a sound absorption mechanism; the sound absorbing mechanism is arranged on the periphery of the conveying pipeline and is used for absorbing sound and reducing noise generated on the conveying pipeline; the sound absorbing mechanism includes a sound absorbing shell. This low noise pumping equipment makes sound wave propagate and take place multiple reflection and scattering at sound-absorbing layer and sound-absorbing block inside through sound-absorbing layer and sound-absorbing block to reach energy consumption and absorbing effect, and then can reach the effect that can absorb and consume the acoustic energy, effectively reduce propagation and the vibration of sound, and blow out the air current through the subassembly of blowing and drive sound-absorbing block constantly change the position, can accelerate the absorption and the consumption to the sound wave, accelerate the consumption acoustic energy, further reduce the intensity of sound wave, reach the purpose of making an uproar of falling.

Description

Low-noise pumping equipment

Technical Field

The invention belongs to the technical field of pumping equipment, and particularly relates to low-noise pumping equipment.

Background

The pumping equipment is used as a key device for fluid transmission, plays a vital role in modern industry, and is remarkably improved in performance, efficiency, reliability and the like along with the progress of technology and continuous improvement of industrial production, and can be divided into various types of concrete pumps, centrifugal pumps, volumetric pumps, jet pumps and the like according to different working principles and application requirements, and is widely applied to the fields of construction, mines, metallurgy, chemical industry, agricultural irrigation and the like.

The concrete pump is mainly used for conveying concrete, has larger conveying pressure, can convey the concrete to higher height and longer distance, at present, the existing concrete pump equipment has the following problems in the using process, the conveying pipeline of the concrete pump can generate dynamic noise in the material conveying process due to unstable flowing state of material fluid, and meanwhile, the beating sound when the material flows and contacts with the inner wall of the conveying pipeline easily induces the conveying pipeline to generate mechanical vibration, so that noise and mechanical vibration are generated on the conveying pipeline, and the noise can be transmitted into the surrounding environment through the equipment, thereby causing noise pollution to the external environment; there is a disadvantage in that it cannot meet the use requirement thereof, and thus, further improvement is required.

Accordingly, in view of the above, research and improvement have been made with respect to the existing structure and the shortcomings, and low noise pumping equipment is provided in order to achieve the purpose of having more practical value.

Disclosure of Invention

In order to solve the technical problems, the invention provides low-noise pumping equipment, which is achieved by the following specific technical means:

the low-noise pumping equipment comprises a shell, a conveying pipeline arranged on the inner side of the shell, a feeding screw rod arranged in the conveying pipeline, a sound absorbing mechanism arranged on the inner side of the shell, and a noise reducing mechanism arranged on the inner wall of the shell;

the sound absorbing mechanism is arranged on the periphery of the conveying pipeline and is used for absorbing sound and reducing noise generated on the conveying pipeline;

The sound absorbing mechanism comprises a sound absorbing shell, an inner cavity is formed in the sound absorbing shell, a sound absorbing layer for absorbing noise sound waves is fixedly assembled on the wall of the inner cavity of the sound absorbing shell, sound receiving holes for receiving the noise sound waves are formed in the sound absorbing shell and the sound absorbing layer, a plurality of sound absorbing blocks are arranged in the inner cavity of the sound absorbing shell, and the noise sound waves are absorbed and consumed through the sound absorbing blocks;

The noise reduction mechanism comprises a noise reduction seat, a damping component and an air blowing component are arranged in the noise reduction seat, the air blowing component is located at the left side and the right side of the damping component, the damping component is used for damping and counteracting vibration generated by a conveying pipeline and a sound absorption mechanism, the air blowing component is communicated with the sound absorption mechanism, and the air blowing component is used for blowing operation inside a sound absorption shell and used for driving a sound absorption block, and the position of the sound absorption block is not regulated regularly.

As a further description of the above technical solution: noise sound wave generated by the conveying pipeline is transmitted to the inside of the sound absorbing shell through the sound receiving holes, sound waves are transmitted and scattered in the sound absorbing layer and the sound absorbing block by utilizing the sound absorbing layer and the sound absorbing block, so that the effects of energy consumption and absorption are achieved, the effect of absorbing and consuming sound energy can be achieved, the transmission and vibration of sound are effectively reduced, the sound absorbing block is driven to continuously change positions through the blowing component to blow out air flow, the absorption and consumption of the sound waves can be accelerated, the scattering and reflection of the sound waves on the surface of the sound absorbing block can be increased, the consumed sound energy is accelerated, the strength of the sound waves is further reduced, and the purpose of noise reduction is achieved.

Further, the sound absorbing layer and the sound absorbing block are made of foam materials, and the size of the sound absorbing block is larger than that of the sound receiving hole.

As a further description of the above technical solution: through setting up sound-absorbing layer and sound-absorbing piece to be foam material, foam material has a large amount of inside and outside intercommunication's tiny pore and hole, and these holes can make sound wave propagate and take place multiple reflection and scattering in sound-absorbing layer and sound-absorbing piece inside to reach energy consumption and absorbing effect, and then can reach the effect that can absorb and consume the acoustic energy, effectively reduce propagation and the vibration of sound.

Further, be provided with damper between pipeline's the lateral wall and the sound absorbing mechanism, damper is used for carrying out the shock attenuation and offset to pipeline's the vibrations that produce.

As a further description of the above technical solution: the vibration reduction assembly can effectively reduce vibration of the slightly vibrated conveying pipeline, and achieves the effects of vibration reduction and noise reduction.

Further, the damper comprises a damper sleeve, damper sleeve one end fixed mounting is on the sound absorbing shell, damper sleeve is provided with the damper rod opposite to one side slidable mounting of pipeline, the inside of damper sleeve is provided with the shock attenuation board, the damper rod extends to the inside of damper sleeve towards damper sleeve's one end and in damper plate looks fixed connection, damper sleeve and damper rod's periphery cover is equipped with first damping spring, fixedly connected with second damping spring between damper plate's the upper and lower both sides and damper sleeve's the inner wall.

As a further description of the above technical solution: utilize the shock attenuation pole to drive the shock attenuation board and extrude and stretch second damping spring, and the shock attenuation pole extrudees and stretches first damping spring simultaneously, under the elasticity effect of first damping spring and second damping spring, can effectively reduce pipeline's vibration amplitude to can effectively strengthen pipeline's shock resistance, and the noise that produces when synchronous reduction is vibrated, reach the purpose of shock attenuation and noise reduction.

Furthermore, a fixing frame is fixedly arranged in the noise reduction seat, and the fixing frame is matched and assembled with the damping component and the blowing component.

As a further description of the above technical solution: the damping component and the blowing component are stably installed through the arrangement of the fixing frame.

Further, a movable assembly is fixedly arranged in the noise reduction seat, and the movable assembly is positioned between the damping assembly and the blowing assembly;

the movable assembly comprises a fixed shaft, a movable rod is rotatably arranged on the fixed shaft, and a movable telescopic rod is arranged on the movable rod.

As a further description of the above technical solution: the movable rod is provided with the damping component and the blowing component, and the movable rod is expanded and contracted when being moved by being beneficial to the movement of the movable rod.

Further, the damping assembly comprises a damping sleeve, a damping rod is slidably mounted on one side, facing the sound absorption shell, of the damping sleeve, one side of the damping rod is rotationally connected with the movable rod, one end, far away from the damping sleeve, of the damping rod is fixedly connected with the sound absorption shell, one end, far away from the sound absorption shell, of the damping rod extends to the inside of the damping sleeve and is fixedly connected with a damping plate, and a damping spring is fixedly connected between the damping plate and the inner top wall of the damping sleeve.

As a further description of the above technical solution: when the vibration amplitude of the conveying pipeline is large, the damping plate is pushed by the damping rod to extrude the damping spring, the purpose of reducing the vibration amplitude of the conveying pipeline is achieved by utilizing the elastic action of the damping spring, and the damping effect is achieved.

Further, the inside of damping cover is provided with first magnet piece and second magnet piece, first magnet piece assembly is on the damping board, the second magnet piece assembly is at the interior roof of damping cover, first magnet piece and second magnet piece all are located damping spring's inboard, the relative one side of first magnet piece and second magnet piece sets up to be the same magnetism.

As a further description of the above technical solution: the damping spring is extruded by the damping plate and pushes the first magnet block to be close to the second magnet block, and as the opposite surfaces of the first magnet block and the second magnet block are of the same magnetism, repulsive magnetic fields can be generated between the first magnet block and the second magnet block, and the purpose of reducing the vibration amplitude of the conveying pipeline is achieved by utilizing the resistance effect generated by the repulsive magnetic fields between the first magnet block and the second magnet block, so that the purpose of damping is further achieved, and meanwhile noise generated by vibration is reduced.

Further, the air blowing assembly comprises an air blowing sleeve, an extrusion rod is slidably arranged on one side of the air blowing sleeve, one side of the extrusion rod is rotationally connected with the movable rod, an extrusion plate and an air blowing bag are arranged in the air blowing sleeve, one end of the extrusion rod extends to the inside of the air blowing sleeve and is fixedly connected with the extrusion plate, a vent pipe is fixedly arranged on one side, facing the sound absorbing shell, of the air blowing sleeve, the vent pipe is communicated with the air blowing bag, and one end, far away from the air blowing bag, of the vent pipe extends to the inside of the sound absorbing shell and is communicated with an inner cavity of the sound absorbing shell;

wherein the vent pipe is made of soft materials.

As a further description of the above technical solution: the extrusion rod drives the extrusion plate to extrude the air blowing air bag, so that air flow in the air blowing air bag is sprayed to the inside of the sound absorbing shell along the vent pipe, and the sound absorbing block in the cavity in the sound absorbing shell continuously changes the position of the air blowing air bag under the driving of the air flow, so that the absorption and consumption of sound waves can be accelerated, the scattering and reflection of the sound waves on the surface of the sound absorbing block can be increased, the consumption of sound energy is accelerated, the strength of the sound waves is further reduced, and the purpose of reducing noise is achieved.

Further, a reset spring is fixedly connected between one end of the extrusion rod, which is far away from the air blowing sleeve, and the inner wall of the noise reduction seat, a one-way air inlet valve is fixedly assembled on the outer side wall of the air blowing sleeve, and one side of the one-way air inlet valve is fixedly connected with the air blowing air bag.

As a further description of the above technical solution: the reset spring is favorable for resetting the extrusion rod, and meanwhile, the unidirectional air inlet valve is convenient for the extrusion rod to drive the extrusion plate to reset, so that the unidirectional air inlet valve can realize automatic inflation of the air blowing air bag, and reciprocating air blowing is convenient.

In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:

1. This low noise pumping equipment, through the noise sound wave transmission that the radio reception hole produced the pipeline to the inside of inhaling the sound shell, utilize sound absorption layer and sound absorption piece to make sound wave propagate and take place multiple reflection and scattering in sound absorption layer and sound absorption piece inside, thereby reach energy consumption and absorbing effect, and then can reach the effect that can absorb and consume the acoustic energy, effectively reduce propagation and vibration of sound, and blow out the air current through the subassembly of blowing and drive sound absorption piece constantly change position, can accelerate the absorption and consumption to the sound wave, can increase the scattering and reflection of sound wave at sound absorption piece surface, accelerate the consumption acoustic energy, further reduce the intensity of sound wave, reach the purpose of making an uproar falls

2. This low noise pumping equipment, when pipeline produced slight vibrations, utilize the shock attenuation pole to drive the shock attenuation board and extrude and stretch second damping spring, and the shock attenuation pole extrudees and stretches first damping spring simultaneously, through first damping spring and second damping spring's elasticity effect under, can effectively reduce pipeline's vibration amplitude to can effectively strengthen pipeline's shock resistance, and the noise that produces when synchronous reduction is vibrated, reach the purpose of shock attenuation and noise reduction.

3. This low noise pumping equipment, when pipeline vibration amplitude is great, promote the damping board through the damping pole and extrude damping spring, and the first magnet piece is the same magnetism with the opposite one side of second magnet piece, so can produce the magnetic field that repels between them, utilize the elasticity effect of damping spring and the produced resistance effect of the magnetic field that repels between first magnet piece and the second magnet piece to reach the mesh that reduces pipeline vibration amplitude, further reach the absorbing purpose, the shock attenuation is effectual, further reduce the noise that vibrations produced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of 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 invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic overall perspective view provided according to an embodiment of the present invention;

fig. 2 is a schematic view showing a mounting structure of a housing and a sound absorbing mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic view of a mounting structure of a conveying pipeline and a damping assembly according to an embodiment of the present invention;

FIG. 4 is a schematic view showing a mounting structure of a housing and a noise reduction mechanism according to an embodiment of the present invention;

fig. 5 is a schematic view showing a mounting structure of a conveying pipe and a sound absorbing mechanism according to an embodiment of the present invention;

FIG. 6 illustrates an enlarged schematic view of portion A of FIG. 4 provided in accordance with an embodiment of the present invention;

FIG. 7 illustrates a schematic view of a partial structure of a shock absorbing assembly provided in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view showing a partial structure of a noise reduction mechanism according to an embodiment of the present invention;

FIG. 9 illustrates a schematic view of a partial structure of a damping assembly provided in accordance with an embodiment of the present invention;

FIG. 10 is a schematic view showing a partial structure of an air blowing assembly according to an embodiment of the present invention;

Fig. 11 shows a schematic diagram of a movable component according to an embodiment of the present invention.

In the figure: 1. a housing; 2. a delivery conduit; 3. a feeding screw rod; 4. a sound absorbing mechanism; 41. a sound-absorbing shell; 42. a sound absorbing layer; 43. a radio hole; 44. a sound-absorbing block; 5. a shock absorbing assembly; 51. a damping sleeve; 52. a shock-absorbing rod; 53. a shock absorbing plate; 54. a first damper spring; 55. a second damper spring; 6. a noise reduction mechanism; 61. a noise reduction seat; 611. a fixing frame; 62. a damping assembly; 621. a damping sleeve; 622. a damping rod; 623. a damping plate; 624. a damping spring; 625. a first magnet block; 626. a second magnet block; 63. an air blowing assembly; 631. a blowing sleeve; 632. an extrusion rod; 6321. a return spring; 633. an extrusion plate; 634. an air blowing air bag; 6341. a one-way air inlet valve; 635. a vent pipe; 64. a movable assembly; 641. a fixed shaft; 642. a movable rod; 6421. a telescopic rod.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.

Referring to fig. 1 to 8, a low noise pumping apparatus includes a housing 1, a conveying pipe 2 disposed inside the housing 1, a feeding screw 3 disposed inside the conveying pipe 2, a sound absorbing mechanism 4 disposed inside the housing 1, and a noise reducing mechanism 6 disposed on an inner wall of the housing 1; the sound absorbing mechanism 4 is arranged on the periphery of the conveying pipeline 2 and is used for absorbing sound and reducing noise generated on the conveying pipeline 2; the sound absorbing mechanism 4 comprises a sound absorbing shell 41, an inner cavity is formed in the sound absorbing shell 41, a sound absorbing layer 42 for absorbing noise sound waves is fixedly arranged on the wall of the inner cavity of the sound absorbing shell 41, sound receiving holes 43 for receiving the noise sound waves are formed in the sound absorbing shell 41 and the sound absorbing layer 42, a plurality of sound absorbing blocks 44 are arranged in the inner cavity of the sound absorbing shell 41, and the noise sound waves are absorbed and consumed through the sound absorbing blocks 44; the noise reduction mechanism 6 comprises a noise reduction seat 61, a damping component 62 and a blowing component 63 are arranged in the noise reduction seat 61, the blowing component 63 is located on the left side and the right side of the damping component 62, the damping component 62 is used for absorbing and counteracting vibration generated by the conveying pipeline 2 and the sound absorption mechanism 4, the blowing component 63 is communicated with the sound absorption mechanism 4, the blowing component 63 is used for blowing the inside of the sound absorption shell 41, the noise sound wave generated by the conveying pipeline 2 is transmitted to the inside of the sound absorption shell 41 through the sound receiving holes 43, the sound wave is transmitted to the inside of the sound absorption layer 42 and the inside of the sound absorption block 44 through the sound absorption layer 42 and the sound absorption block 44, and is reflected and scattered repeatedly, so that the energy consumption and absorption effect are achieved, the effect of absorbing and the sound energy consumption can be achieved, the sound transmission and vibration of the sound can be effectively reduced, the sound absorption and consumption of the sound wave can be accelerated by blowing the air flow of the blowing component 63 to drive the sound absorption block 44 to continuously change positions, the sound absorption and the consumption of the sound wave can be increased, the scattering and reflection of the sound wave on the surface of the sound absorption block 44 can be accelerated, the sound wave is further reduced, the sound energy is further consumed, and the noise is reduced.

Referring to fig. 6, the sound absorbing layer 42 and the sound absorbing block 44 are made of foam materials, and the size of the sound absorbing block 44 is larger than that of the sound receiving hole 43, and the foam materials have a large number of micro-holes and holes communicated with the inside and the outside by arranging the sound absorbing layer 42 and the sound absorbing block 44 to make sound waves spread inside the sound absorbing layer 42 and the sound absorbing block 44 and generate multiple reflection and scattering, so that the effects of energy consumption and absorption are achieved, the effects of absorbing and consuming sound energy are achieved, and the spread and vibration of sound are effectively reduced.

Referring to fig. 3, a damper 5 is disposed between the outer sidewall of the conveying pipe 2 and the sound absorbing mechanism 4, the damper 5 is used for damping and counteracting vibration generated by the conveying pipe 2, and the conveying pipe 2 with slight vibration can be effectively damped by the arrangement of the damper 5.

Referring to fig. 7, the damper assembly 5 includes a damper sleeve 51, one end of the damper sleeve 51 is fixedly assembled on the sound absorbing shell 41, a damper rod 52 is slidably installed on one side of the damper sleeve 51 opposite to the conveying pipeline 2, a damper plate 53 is disposed in the damper sleeve 51, the damper rod 52 extends to the inside of the damper sleeve 51 towards one end of the damper sleeve 51 and is fixedly connected with the damper plate 53, a first damper spring 54 is sleeved on the periphery of the damper sleeve 51 and the damper rod 52, a second damper spring 55 is fixedly connected between the upper side and the lower side of the damper plate 53 and the inner wall of the damper sleeve 51, the damper rod 52 drives the damper plate 53 to squeeze and stretch the second damper spring 55, and the damper rod 52 simultaneously squeezes and stretches the first damper spring 54, so that the vibration amplitude of the conveying pipeline 2 can be effectively reduced under the elastic force action of the first damper spring 54 and the second damper spring 55, and the vibration resistance of the conveying pipeline 2 can be effectively enhanced, and the noise generated during vibration of the conveying pipeline can be synchronously reduced.

Referring to fig. 8, a fixing frame 611 is fixedly installed in the noise reduction seat 61, the fixing frame 611 is assembled in cooperation with the damping component 62 and the air blowing component 63, and the damping component 62 and the air blowing component 63 are stably installed through the arrangement of the fixing frame 611.

Referring to fig. 8 to 11, a movable assembly 64 is fixedly disposed inside the noise reduction seat 61, and the movable assembly 64 is located between the damping assembly 62 and the air blowing assembly 63; the movable assembly 64 comprises a fixed shaft 641, a movable rod 642 is rotatably arranged on the fixed shaft 641, a movable telescopic rod 6421 is arranged on the movable rod 642, linkage between the damping assembly 62 and the air blowing assembly 63 is facilitated through the arrangement of the movable rod 642, and the movable rod 642 can be conveniently moved by expanding and contracting when the movable rod 642 is moved through the arrangement of the telescopic rod 6421.

Referring to fig. 8 to 9, the damping assembly 62 includes a damping sleeve 621, a damping rod 622 is slidably mounted on one side of the damping sleeve 621 facing the sound absorbing shell 41, one side of the damping rod 622 is rotatably connected with the movable rod 642, one end of the damping rod 622 away from the damping sleeve 621 is fixedly connected with the sound absorbing shell 41, one end of the damping rod 622 away from the sound absorbing shell 41 extends to the inside of the damping sleeve 621 and is fixedly connected with a damping plate 623, a damping spring 624 is fixedly connected between the damping plate 623 and the inner top wall of the damping sleeve 621, when the vibration amplitude of the conveying pipeline 2 is large, the damping plate 623 is pushed to squeeze the damping spring 624 by the damping rod 622, and the purpose of reducing the vibration amplitude of the conveying pipeline 2 is achieved by using the elastic action of the damping spring 624.

Referring to fig. 9, a first magnet 625 and a second magnet 626 are disposed inside the damping sleeve 621, the first magnet 625 is assembled on the damping plate 623, the second magnet 626 is assembled on the inner top wall of the damping sleeve 621, the first magnet 625 and the second magnet 626 are both disposed inside the damping spring 624, the opposite sides of the first magnet 625 and the second magnet 626 are disposed with the same magnetism, the damping spring 624 is pressed by the damping plate 623 while the first magnet 625 is pushed to be close to the second magnet 626, and as the opposite sides of the first magnet 625 and the second magnet 626 are of the same magnetism, a repulsive magnetic field is generated between the first magnet 625 and the second magnet 626, and the purpose of reducing the vibration amplitude of the conveying pipeline 2 is achieved by using the resistance effect generated by the repulsive magnetic field between the first magnet 625 and the second magnet 626, so as to further achieve the purpose of shock absorption.

Referring to fig. 8 to 10, the air blowing assembly 63 includes an air blowing sleeve 631, an extrusion rod 632 is slidably mounted on one side of the air blowing sleeve 631, one side of the extrusion rod 632 is rotatably connected with a movable rod 642, an extrusion plate 633 and an air blowing air bag 634 are disposed in the air blowing sleeve 631, one end of the extrusion rod 632 extends into the air blowing sleeve 631 and is fixedly connected with the extrusion plate 633, a vent pipe 635 is fixedly mounted on one side of the air blowing sleeve 631 facing the sound absorbing shell 41, the vent pipe 635 is communicated with the air blowing air bag 634, and one end of the vent pipe 635, which is far away from the air blowing air bag 634, extends into the sound absorbing shell 41 and is communicated with an inner cavity of the sound absorbing shell 41; wherein, the breather pipe 635 is made of soft material, the extrusion rod 632 drives the extrusion plate 633 to extrude the air-blowing air bag 634, so that the air flow in the air-blowing air bag 634 is sprayed into the sound-absorbing shell 41 along the breather pipe 635, and the sound-absorbing block 44 in the cavity of the sound-absorbing shell 41 is continuously changed in position under the driving of the air flow, so that the absorption and consumption of the sound wave can be accelerated, the scattering and reflection of the sound wave on the surface of the sound-absorbing block 44 can be increased, the consumption of the sound energy is accelerated, and the intensity of the sound wave is further reduced.

Referring to fig. 10, a return spring 6321 is fixedly connected between one end of the extrusion rod 632 far away from the air blowing sleeve 631 and the inner wall of the noise reduction seat 61, a unidirectional air inlet valve 6341 is fixedly assembled on the outer side wall of the air blowing sleeve 631, one side of the unidirectional air inlet valve 6341 is fixedly connected with the air blowing air bag 634, the return of the extrusion rod 632 is facilitated through the arrangement of the return spring 6321, and meanwhile, when the extrusion rod 632 drives the extrusion plate 633 to return through the arrangement of the unidirectional air inlet valve 6341, the unidirectional air inlet valve 6341 automatically inflates the air blowing air bag 634, and reciprocating air blowing is facilitated.

Specific use and action of the embodiment:

Working principle: the concrete pump is mainly used for conveying concrete, has larger conveying pressure, can convey the concrete to higher height and longer distance, when in use, the feeding screw rod 3 is driven to operate, the material is pushed by the screw blade to convey, and because the flowing state of material fluid is unstable, dynamic noise can be generated, generated noise sound waves are outwards transmitted through the conveying pipeline 2 and are simultaneously transmitted to the inside of the sound-absorbing shell 41 along the sound-receiving hole 43, when sound waves enter the inner cavity of the sound-absorbing shell 41, because the sound-absorbing layer 42 and the sound-absorbing block 44 are composed of foam materials, the foam materials are provided with a large number of tiny holes and holes communicated with each other inside and outside, and the holes can enable the sound waves to propagate in the sound-absorbing layer 42 and the sound-absorbing block 44 and generate multiple reflection and scattering, so that the effects of energy consumption and absorption can be achieved, and the sound transmission and vibration can be effectively reduced;

Meanwhile, when the material flows and is in contact with the inner wall of the conveying pipeline 2, the beating sound is easy to induce the conveying pipeline 2 to generate mechanical vibration, when the conveying pipeline 2 generates slight vibration, the vibration-damping rod 52 is driven to synchronously generate vibration effects based on vibration of the conveying pipeline 2, the vibration-damping rod 52 is used for driving the vibration-damping plate 53 to extrude and stretch the second vibration-damping spring 55, the vibration-damping rod 52 moves and simultaneously extrudes and stretches the first vibration-damping spring 54, and the vibration amplitude of the conveying pipeline 2 can be effectively reduced under the action of the elasticity of the first vibration-damping spring 54 and the second vibration-damping spring 55, so that the vibration-damping performance of the conveying pipeline 2 can be effectively enhanced, and noise generated during vibration is synchronously reduced, and the purposes of vibration and noise reduction are achieved;

In addition, when the vibration amplitude of the conveying pipeline 2 is larger, the sound absorption shell 41 is driven to vibrate synchronously, the damping rod 622 is pushed to move in the vibration process of the sound absorption shell 41, the damping plate 623 is pushed to extrude the damping spring 624, the first magnet block 625 is pushed to be close to the second magnet block 626 while the damping spring 624 is extruded, and as the opposite surfaces of the first magnet block 625 and the second magnet block 626 are of the same magnetism, repulsive magnetic fields are generated between the first magnet block 625 and the second magnet block 626, the purpose of reducing the vibration amplitude of the conveying pipeline 2 is achieved by utilizing the elastic force of the damping spring 624 and the resistance effect generated by the repulsive magnetic fields between the first magnet block 625 and the second magnet block 626, the purpose of damping is further achieved, the damping effect is good, and noise generated by vibration is further reduced; when the conveying pipeline 2 is vibrated, the generated noise is synchronously aggravated, when the damping spring 624 is extruded by the damping rod 622 to buffer and damp, the movable rod 642 is synchronously utilized to drive the extrusion rod 632 to move and push the extrusion plate 633 to extrude the air blowing air bag 634, so that the air flow in the air blowing air bag 634 is sprayed to the inside of the sound absorbing shell 41 along the air pipe 635, the position of the sound absorbing block 44 in the cavity in the sound absorbing shell 41 is continuously changed under the driving of the air flow, when the sound wave contacts with the sound absorbing layer 42 and the sound absorbing block 44, reflection and attenuation can occur, the reflection can enable the sound wave to return to the original space area, and the attenuation can gradually convert the energy of the sound wave into the energy of other forms, thereby reducing the intensity of the sound wave, driving the continuously changed position of the sound absorbing block 44 through the air flow, accelerating the absorption and consumption of the sound wave, increasing the scattering and reflection of the sound wave on the surface of the sound absorbing block 44, accelerating the consumption of the sound energy, further reducing the intensity of the sound wave, and achieving the purpose of noise reduction.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims (10)

1. The utility model provides a low noise pumping equipment, includes casing (1), sets up in inboard pipeline (2) of casing (1) to and set up feeding screw (3) in pipeline (2), its characterized in that: the sound-absorbing mechanism (4) is arranged on the inner side of the shell (1), and the noise-reducing mechanism (6) is arranged on the inner wall of the shell (1);

The sound absorbing mechanism (4) is arranged on the periphery of the conveying pipeline (2) and is used for absorbing sound and reducing noise generated on the conveying pipeline (2);

The sound absorption mechanism (4) comprises a sound absorption shell (41), an inner cavity is formed in the sound absorption shell (41), a sound absorption layer (42) for absorbing noise sound waves is fixedly arranged on the wall of the inner cavity of the sound absorption shell (41), sound receiving holes (43) for receiving the noise sound waves are formed in the sound absorption shell (41) and the sound absorption layer (42), and a plurality of sound absorption blocks (44) are arranged in the inner cavity of the sound absorption shell (41) and are used for absorbing and consuming the noise sound waves through the sound absorption blocks (44);

The noise reduction mechanism (6) comprises a noise reduction seat (61), a damping component (62) and an air blowing component (63) are arranged in the noise reduction seat (61), the air blowing component (63) is located on the left side and the right side of the damping component (62), the damping component (62) is used for damping and counteracting vibration generated by the conveying pipeline (2) and the sound absorption mechanism (4), the air blowing component (63) is communicated with the sound absorption mechanism (4), and the air blowing component (63) is used for blowing operation inside the sound absorption shell (41) and is used for driving the sound absorption block (44) without regulation of the position.

2. A low noise pumping device as defined in claim 1, wherein: the sound absorbing layer (42) and the sound absorbing block (44) are made of foam materials, and the size of the sound absorbing block (44) is larger than that of the sound receiving hole (43).

3. A low noise pumping device as defined in claim 1, wherein: a damping component (5) is arranged between the outer side wall of the conveying pipeline (2) and the sound absorbing mechanism (4), and the damping component (5) is used for damping and counteracting vibration generated by the conveying pipeline (2).

4. A low noise pumping device as defined in claim 3, wherein: the utility model provides a damping assembly (5) is including shock attenuation cover (51), shock attenuation cover (51) one end fixed mounting is on sound absorbing shell (41), one side slidable mounting relative to pipeline (2) of shock attenuation cover (51) has shock attenuation pole (52), the inside of shock attenuation cover (51) is provided with shock attenuation board (53), shock attenuation pole (52) extend to the inside of shock attenuation cover (51) towards the one end of shock attenuation cover (51) and in shock attenuation board (53) looks fixed connection, the periphery cover of shock attenuation cover (51) and shock attenuation pole (52) is equipped with first damping spring (54), fixedly connected with second damping spring (55) between the upper and lower both sides of shock attenuation board (53) and the inner wall of shock attenuation cover (51).

5. A low noise pumping device as defined in claim 1, wherein: the inside of the noise reduction seat (61) is fixedly provided with a fixing frame (611), and the fixing frame (611) is matched and assembled with the damping component (62) and the blowing component (63).

6. A low noise pumping device as defined in claim 1, wherein: a movable assembly (64) is fixedly arranged in the noise reduction seat (61), and the movable assembly (64) is positioned between the damping assembly (62) and the blowing assembly (63);

the movable assembly (64) comprises a fixed shaft (641), a movable rod (642) is rotatably arranged on the fixed shaft (641), and a movable telescopic rod (6421) is arranged on the movable rod (642).

7. A low noise pumping device as defined in claim 6, wherein: damping subassembly (62) are including damping cover (621), damping cover (621) are towards one side slidable mounting of inhaling sound case (41) have damping pole (622), damping pole (622) one side is rotated with movable rod (642) and is connected, damping pole (622) keep away from the one end of damping cover (621) and inhale sound case (41) and be connected fixedly, damping pole (622) keep away from the one end of inhaling sound case (41) and extend to damping cover (621) inside and be connected fixedly with damping board (623), fixedly connected with damping spring (624) between damping board (623) and the interior roof of damping cover (621).

8. A low noise pumping device as defined in claim 7, wherein: the inside of damping cover (621) is provided with first magnet piece (625) and second magnet piece (626), first magnet piece (625) are assembled on damping board (623), second magnet piece (626) are assembled at the interior roof of damping cover (621), first magnet piece (625) all are located the inboard of damping spring (624) with second magnet piece (626), the relative one side of first magnet piece (625) and second magnet piece (626) sets up to be the same magnetism.

9. A low noise pumping device as defined in claim 6, wherein: the air blowing assembly (63) comprises an air blowing sleeve (631), an extrusion rod (632) is slidably arranged on one side of the air blowing sleeve (631), one side of the extrusion rod (632) is rotationally connected with a movable rod (642), an extrusion plate (633) and an air blowing air bag (634) are arranged in the air blowing sleeve (631), one end of the extrusion rod (632) extends to the inside of the air blowing sleeve (631) and is fixedly connected with the extrusion plate (633), an air pipe (635) is fixedly arranged on one side, facing the sound absorbing shell (41), of the air blowing sleeve (631), the air pipe (635) is communicated with the air blowing air bag (634), and one end, far away from the air blowing air bag (634), of the air pipe (635) extends to the inside of the sound absorbing shell (41) and is communicated with an inner cavity of the sound absorbing shell (41);

wherein the breather pipe (635) is provided in a soft material.

10. A low noise pumping device as defined in claim 9, wherein: the one end of the extrusion rod (632) far away from the air blowing sleeve (631) is fixedly connected with a reset spring (6321) between the inner wall of the noise reduction seat (61), a one-way air inlet valve (6341) is fixedly assembled on the outer side wall of the air blowing sleeve (631), and one side of the one-way air inlet valve (6341) is fixedly connected with an air blowing air bag (634).