Noise reduction and shock absorption control device for high vacuum system

Abstract

The utility model discloses a noise reduction and shock absorption control device for a high vacuum system, which comprises two hoops positioned outside a vacuum pump, annular grooves are formed in the hoops, a plurality of sound absorption holes are formed in the bottoms of the annular grooves, shock pads are fixed in the annular grooves, and buffer balls are fixed at one ends, far away from the bottoms of the annular grooves, of the shock pads. The buffer ball body protrudes out of the hoop; a plurality of connecting bodies are fixed between the hoops, each connecting body is of an arc-shaped structure and located on the outer edge of the corresponding hoop, and a plurality of noise reduction grooves are formed in the inner surface of each connecting body; inserting blocks are arranged at the two ends of the lower portion of the clamping hoop, the inserting blocks are sleeved with outer protective shells, gaps are formed between the inserting blocks and the outer protective shells, viscous fluid is arranged in the gaps, and viscous flowing means that the fluid passes through the surface of a solid. The noise reduction device has the advantages that noise generated by the motor of the vacuum pump is reduced, overall and comprehensive noise reduction is achieved, and the noise reduction effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to a noise reduction and vibration reduction control device for a high vacuum system. Background Art

[0002] During the use of vacuum pumps, the noise mainly comes from the motor and pump body, and the noise is very loud, which can easily cause environmental pollution. The noise of the main body is mostly caused by vibration, and the vibration noise is mostly low-frequency noise with strong penetration, and it spreads to the surroundings in the form of solid transmission. The noise of the motor is transmitted outward from the pump shell.

[0003] The existing vacuum pump noise reduction and vibration reduction device generally installs a vibration absorber at the vacuum pump base to reduce the vibration transmission rate of the pump body. However, this structure only targets the bottom connection, but cannot effectively reduce the noise emitted around the vacuum pump motor. Therefore, an improved technology is proposed. Utility Model Content

[0004] The utility model solves the technical problem that the noise emitted around the vacuum pump motor cannot be effectively reduced, and provides a noise reduction and vibration reduction control device for a high vacuum system.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a noise reduction and vibration reduction control device for a high vacuum system, comprising two clamps located outside a vacuum pump, the clamps are tightly clamped outside the vacuum pump body, the clamps are C-shaped, annular grooves are provided in the clamps, and a plurality of sound-absorbing holes are provided at the bottom of the annular grooves, and the sound-absorbing holes can be circular or rectangular, or holes of various shapes;

[0006] A shock-absorbing pad is fixed in the annular groove, and a buffer ball is fixed at one end of the shock-absorbing pad away from the bottom of the annular groove. The buffer ball protrudes outside the clamp, and the buffer ball is mainly located between the clamp and the vacuum pump body;

[0007] A number of connectors are fixed between the clamps, and the connectors are arc-shaped structures and are located at the outer edge of the clamps. A number of noise reduction grooves are provided on the inner surface of the connectors; mounting blocks are fixed at both ends below the clamps, and plug blocks are fixed below the mounting blocks. An outer protective shell is connected to the plug blocks, and a gap is formed between the plug blocks and the outer protective shell, and a viscous fluid is provided in the gap. Viscous flow refers to the friction between the fluid layer and the solid surface when the fluid passes through the solid surface, causing the fluid to move along the surface; a mounting plate is fixed below the outer protective shell, and mounting holes are provided at the four corners of the mounting plate. Bolts are provided in the mounting holes, and the mounting plates are fixed to the bracket or the surface of the object by bolts.

[0008] Furthermore, the outer surface of the plug block is provided with a plurality of strip grooves for increasing the contact area with the viscous fluid. The strip grooves are arranged in parallel up and down and at intervals, which can increase the contact area between the plug block and the viscous fluid, thereby increasing the shear force between the plug block and the viscous fluid, so that the vibration force can be dissipated and the resistance to shock force can be improved.

[0009] Furthermore, the C-shaped opening of the clamp is located between the mounting blocks, the clamp is supported by a metal material, and has a slight elastic deformation capability and a certain deformation space, and can adapt to vacuum pumps of different sizes.

[0010] Furthermore, sound-absorbing cotton is arranged in the sound-absorbing hole to enhance the noise reduction performance.

[0011] Furthermore, the buffer sphere is made of rubber material, a plurality of vacuum holes are arranged inside the buffer sphere, the vacuum holes block the propagation of noise, and anti-skid patterns are arranged on the outer surface of the buffer sphere to enhance the anti-skid performance.

[0012] Furthermore, the connectors are arranged at intervals, and the connectors may also be integrally formed and cover the outside of the vacuum pump.

[0013] The advantages of the utility model compared with the prior art are:

[0014] 1. The utility model product is provided with a shock-absorbing pad and a buffer ball, so that the vibration transmission rate can be reduced at the connection between the clamp and the vacuum pump. A viscous fluid is provided at the connection between the jack and the outer shell, which can also cut off the solid connection between the surrounding clamp and the mounting plate to avoid resonance and achieve the effect of reducing the overall noise;

[0015] 2. Two clamps are provided and connected by a connector, and a plurality of noise reduction grooves are provided on the inner surface thereof, which can reduce the noise emitted by the vacuum pump motor, thereby achieving overall and comprehensive noise reduction and achieving better noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a three-dimensional structural schematic diagram of a noise reduction and vibration reduction control device for a high vacuum system.

[0017] Figure 2 The utility model is a top view structural schematic diagram of a noise reduction and vibration reduction control device for a high vacuum system.

[0018] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a clamp of a noise reduction and vibration reduction control device for a high vacuum system.

[0019] Figure 4 The utility model is a schematic diagram of the structure of a connector of a noise reduction and vibration reduction control device for a high vacuum system.

[0020] As shown in the figure: 1. Clamp, 2. Annular groove, 3. Sound-absorbing hole, 4. Shock-absorbing pad, 5. Buffer sphere, 6. Connector, 7. Noise reduction groove, 8. Mounting block, 9. Insert block, 10. Outer shell, 11. Viscous fluid, 12. Mounting plate, 13. Mounting hole, 14. Strip groove, 15. Vacuum hole. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Combined with Figure 1 , Figure 2 A noise reduction and vibration reduction control device for a high vacuum system includes two clamps 1 located outside a vacuum pump, the clamps 1 are tightly clamped outside the vacuum pump body, the clamps 1 are C-shaped, an annular groove 2 is opened in each of the clamps 1, and a plurality of sound-absorbing holes 3 are arranged at the bottom of the annular groove 2, and the sound-absorbing holes 3 can be circular or rectangular, or holes of various shapes;

[0024] A shock-absorbing pad 4 is fixed in the annular groove 2, and a buffer ball 5 is fixed at one end of the shock-absorbing pad 4 away from the bottom of the annular groove 2. The buffer ball 5 protrudes outside the clamp 1, and the buffer ball 5 is mainly located between the clamp 1 and the vacuum pump body;

[0025] Combined with Figure 3 , Figure 4 , a plurality of connectors 6 are fixed between the clamps 1, the connectors 6 are of arc-shaped structure and are located at the outer edge of the clamps 1, and a plurality of noise reduction grooves 7 are provided on the inner surface of the connectors 6; mounting blocks 8 are fixed at both ends below the clamps 1, plug blocks 9 are fixed below the mounting blocks 8, an outer protective shell 10 is connected to the plug blocks 9, a gap is formed between the plug blocks 9 and the outer protective shell 10, and a viscous fluid 11 is provided in the gap, and viscous flow means that when the fluid passes through the solid surface, there is a friction force between the fluid layer and the solid surface, so that the fluid moves along the surface; a mounting plate 12 is fixed below the outer protective shell 10, and mounting holes 13 are provided at the four corners of the mounting plate 12, and bolts are provided in the mounting holes 13, which are fixed to the bracket or the surface of the object by bolts.

[0026] As an embodiment of the utility model, the outer surface of the plug block 9 is provided with a plurality of strip grooves 14 for increasing the contact area with the viscous fluid 11. The strip grooves 14 are arranged in parallel up and down and at intervals, which can increase the contact area between the plug block 9 and the viscous fluid, thereby increasing the shear force between the plug block 9 and the viscous fluid, so that the vibration force can be dissipated and the shock resistance can be improved.

[0027] As an embodiment of the utility model, the C-shaped opening of the clamp 1 is located between the mounting blocks 8. The clamp 1 is supported by metal material and has a certain elastic deformation ability and a certain deformation space, and can adapt to vacuum pumps of different sizes.

[0028] As an embodiment of the utility model, sound-absorbing cotton is arranged in the sound-absorbing hole 3 to enhance the noise reduction performance.

[0029] As an embodiment of the utility model, the buffer sphere 5 is made of rubber material, and a plurality of vacuum holes 15 are provided inside the buffer sphere 5 to block noise transmission. The outer surface of the buffer sphere 5 is provided with anti-slip grooves to enhance the anti-slip performance.

[0030] As an embodiment of the present utility model, the connectors 6 are arranged at intervals, and the connectors 6 can also be integrally formed and cover the outside of the vacuum pump.

[0031] When the utility model is implemented, the product of the utility model is sleeved on the outside of the vacuum pump so that the buffer ball is in tight contact with the outside of the vacuum pump, and the buffer ball and the shock-absorbing pad are equivalent to an elastic support frame, which can avoid resonance with surrounding objects caused by the vibration of the vacuum pump, not only avoiding the formation of noise diffusion, but also reducing the vibration noise problem of the entire equipment; a viscous fluid is arranged at the connection between the jack and the outer shell, which can also cut off the solid connection between the surrounding clamps and the mounting plate, avoiding resonance and achieving the effect of reducing the overall noise; two clamps are arranged and connected by a connector, and a plurality of noise reduction grooves are opened on the inner surface thereof, which has a noise reduction effect on the noise emitted by the vacuum pump motor, that is, the product of the utility model reduces the leakage of various noises in the transmission path, and can effectively reduce the noise caused by the vacuum pump equipment.

[0032] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A noise reduction and vibration reduction control device for a high vacuum system, comprising two clamps (1) located outside a vacuum pump, characterized in that: The clamp (1) is C-shaped, an annular groove (2) is provided in the clamp (1), a plurality of sound-absorbing holes (3) are provided at the bottom of the annular groove (2), a shock-absorbing pad (4) is provided in the annular groove (2), a buffer ball (5) is provided at one end of the shock-absorbing pad (4) away from the bottom of the annular groove (2), and the buffer ball (5) protrudes outside the clamp (1); a plurality of connectors (6) are provided between the clamps (1), and the connectors (6) are arc-shaped structures and are located at the clamps. At the outer edge of the hoop (1), the inner surface of the connector (6) is provided with a plurality of noise reduction grooves (7); mounting blocks (8) are provided at both ends below the clamp (1); an insert block (9) is provided below the mounting block (8); an outer protective shell (10) is connected to the outer surface of the insert block (9); a viscous fluid (11) is provided between the insert block (9) and the outer protective shell (10); a mounting plate (12) is provided below the outer protective shell (10); mounting holes (13) are provided at the four corners of the mounting plate (12).

2. The noise reduction and vibration reduction control device for a high vacuum system according to claim 1, characterized in that: The outer surface of the insert block (9) is provided with a plurality of strip-shaped grooves (14) for increasing the contact area with the viscous fluid (11), and the strip-shaped grooves (14) are arranged vertically and parallelly at intervals.

3. The noise reduction and vibration reduction control device for a high vacuum system according to claim 2, characterized in that: The C-shaped opening of the clamp (1) is located between the mounting blocks (8).

4. The noise reduction and vibration reduction control device for a high vacuum system according to claim 3, characterized in that: Sound-absorbing cotton is arranged in the sound-absorbing hole (3).

5. The noise reduction and vibration reduction control device for a high vacuum system according to claim 4, characterized in that: The buffer sphere (5) is made of rubber material, a plurality of vacuum holes (15) are arranged inside the buffer sphere (5), and anti-slip grooves are arranged on the outer surface of the buffer sphere (5).

6. The noise reduction and vibration reduction control device for a high vacuum system according to claim 5, characterized in that: The connectors (6) are arranged at intervals.

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