CN212272544U - Noise reduction device of vacuum pump - Google Patents
Noise reduction device of vacuum pump Download PDFInfo
- Publication number
- CN212272544U CN212272544U CN202021092443.5U CN202021092443U CN212272544U CN 212272544 U CN212272544 U CN 212272544U CN 202021092443 U CN202021092443 U CN 202021092443U CN 212272544 U CN212272544 U CN 212272544U
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- China
- Prior art keywords
- oil
- vacuum pump
- noise reduction
- shell
- gap
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Abstract
The utility model provides a vacuum pump noise reduction device, which comprises a shell, wherein the shell is arranged outside a pump body of a vacuum pump, and a gap is arranged between the shell and the pump body; the supporting structure comprises a supporting piece and damping oil which are arranged in the gap, one side of the supporting piece is connected with the shell, the other side of the supporting piece is used for supporting the pump body, and the gap is filled with the damping oil; the oil discharging mechanism comprises an oil discharging pipe and an oil discharging valve arranged on the oil discharging pipe, one end of the oil discharging pipe is communicated with the gap, and the other end of the oil discharging pipe is communicated with the oil collecting tank; and an exhaust silencing mechanism disposed in an exhaust port of the vacuum pump. This application reduces the vibration of the pump body simultaneously through the isolated noise of damping oil and falls the noise in coordination, and the noise reduction effect is good.
Description
Technical Field
The utility model relates to a vacuum pump field, concretely relates to device of making an uproar falls in vacuum pump.
Background
The vacuum pump refers to a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical, chemical or physicochemical method. In general, a vacuum pump is a device for improving, generating and maintaining a vacuum in a certain closed space by various methods.
The conventional rotary vane vacuum pump comprises an eccentric rotor, and the eccentric rotor rotates in a pump body to drive a vane or a rotary vane to compress air so as to suck and exhaust air.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a device of making an uproar falls in vacuum pump that can reduce the vacuum pump noise.
In order to solve the technical problem, the utility model provides a scheme is: a noise reduction device for a vacuum pump comprises a shell, a noise reduction device and a noise reduction device, wherein the shell is arranged on the outer side of a pump body of the vacuum pump, and a gap is formed between the shell and the pump body; and
the supporting structure comprises a supporting piece and damping oil which are arranged in the gap, one side of the supporting piece is connected with the shell, the other side of the supporting piece is used for supporting the pump body, and the gap is filled with the damping oil;
the oil discharging mechanism comprises an oil discharging pipe and an oil discharging valve arranged on the oil discharging pipe, one end of the oil discharging pipe is communicated with the gap, and the other end of the oil discharging pipe is communicated with the oil collecting tank; and
and an exhaust silencing mechanism arranged in the exhaust port of the vacuum pump.
Further, the method comprises the following steps: the support piece is an arc-shaped piece, two ends of the arc-shaped piece are connected with the inner side of the shell, and the arch surface of the arc-shaped piece is used for supporting the pump body.
Further, the method comprises the following steps: the exhaust silencing mechanism is made of wave crest silencing cotton attached to the inside of the exhaust port.
Further, the method comprises the following steps: the shell is made of aluminum.
Further, the method comprises the following steps: and the shell is provided with a reinforcing rib.
The utility model has the advantages that: this application reduces the vibration of the pump body simultaneously through the isolated noise of damping oil and falls the noise in coordination, and the noise reduction effect is good.
Drawings
FIG. 1 is a half-sectional view of the present application;
FIG. 2 is a side view of the present application;
the reference numbers are as follows: the oil pump comprises a shell 1, a pump body 2, a gap 3, a support piece 4, an exhaust silencing mechanism 5, a reinforcing rib 6, an oil discharge pipe 7, an oil discharge valve 8 and an oil discharge tank 9.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific embodiments so that those skilled in the art may better understand the present invention and practice it.
The following discloses many different embodiments or examples for implementing the subject technology described. In order to simplify the disclosure, a specific example of one or more permutations of the features is described below, but the present disclosure is not limited to the specific example, and the first feature described later in the specification may be connected to the second feature in a direct connection, or may include an embodiment forming an additional feature, and further, may include the use of one or more other intervening features to connect or combine the first feature and the second feature indirectly with each other so that the first feature and the second feature may not be directly connected.
As shown in fig. 1, an embodiment of a noise reduction device for a vacuum pump includes a housing 1, a cavity is provided inside the housing 1, the cavity is used for accommodating a pump body 2 of the vacuum pump, when the pump body 2 of the vacuum pump is located inside the cavity, a certain gap 3 exists between the housing 1 and the pump body 2, a support structure is provided in the gap 3 to support the pump body 2, specifically, the support structure includes a support member 4 and damping oil fixed in the gap 3, one side of the support member 4 is connected with the housing 1, the other side is used for supporting the pump body 2, and the gap 3 is filled with the damping oil.
As shown in fig. 2, the present application further includes an oil discharging mechanism, the oil discharging mechanism includes an oil discharging pipe 7 and an oil discharging valve 8 disposed on the oil discharging pipe, the oil discharging valve 8 can be but is not limited to a ball valve or a gate valve, one end of the oil discharging pipe 7 is communicated with the gap 3, the other end is communicated with an oil collecting tank 9, and the damping oil can be discharged into the oil collecting tank 9 by opening the oil discharging valve 8 for recycling and replacement.
In one embodiment, the support 4 is an arc-shaped piece, the two ends of which are connected to the inside of the housing 1, the arch of which is used to support the pump body 2.
In other embodiments of the present application, an exhaust silencing mechanism 5 disposed in the exhaust port of the vacuum pump is further included. In a specific embodiment, the exhaust silencing mechanism 5 can be, but is not limited to, a wave silencing cotton attached inside the exhaust port.
In order to further improve the strength of the housing 1, the material of the housing 1 is aluminum. A plurality of reinforcing ribs 6 are fixed on the shell 1.
In the rotary vane vacuum pump, the main source of noise is because compressed gas strikes the pump body 2, makes the pump body 2 produce the structural vibration, and the noise that produces, this application is through filling damping oil in clearance 3, carries out the damping through damping oil to the pump body 2 to reduce the vibration range of the pump body 2, and then the production of noise abatement. The damping oil also has a certain sound insulation performance, so that the transmission of sound can be reduced, and the noise generated by the air flow in the pump body 2 due to the vortex pressure can not be well transmitted out of the shell.
On the other hand, through setting support piece 4 to the arc, because the arc can produce deformation in certain extent, and intensity is higher, consequently can absorb partly vibration when the pump body 2 takes place to vibrate, reduce the transmission of vibration, avoid shell 1 and pump body 2 to vibrate together, produce extra noise.
In this application, through set up exhaust amortization mechanism 5 in the exhaust hole, the noise that the air current produced because speed pulse in the exhaust opening when can absorbing the vacuum pump exhaust.
This application falls to make an uproar based on the source of the noise of vacuum pump, and noise reduction effect is good, and this application simple structure still has absorbing effect concurrently simultaneously.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (5)
1. A vacuum pump noise reduction device is characterized by comprising a shell, a noise reduction device and a noise reduction device, wherein the shell is arranged on the outer side of a pump body of a vacuum pump, and a gap is formed between the shell and the pump body; and
the supporting structure comprises a supporting piece and damping oil which are arranged in the gap, one side of the supporting piece is connected with the shell, the other side of the supporting piece is used for supporting the pump body, and the gap is filled with the damping oil;
the oil discharging mechanism comprises an oil discharging pipe and an oil discharging valve arranged on the oil discharging pipe, one end of the oil discharging pipe is communicated with the gap, and the other end of the oil discharging pipe is communicated with the oil collecting tank; and
and an exhaust silencing mechanism arranged in the exhaust port of the vacuum pump.
2. The vacuum pump noise reduction apparatus of claim 1, wherein the support member is an arc-shaped member, both ends of the arc-shaped member are connected to the inside of the housing, and the arc surface of the arc-shaped member is used for supporting the pump body.
3. The vacuum pump noise reduction device according to claim 1, wherein the exhaust silencing mechanism is a wave-crest silencing cotton attached to the exhaust port.
4. A vacuum pump noise reduction apparatus as claimed in claim 1, wherein the housing is made of aluminium.
5. A vacuum pump noise reduction apparatus as claimed in claim 1, wherein the housing is provided with reinforcing ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021092443.5U CN212272544U (en) | 2020-06-12 | 2020-06-12 | Noise reduction device of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021092443.5U CN212272544U (en) | 2020-06-12 | 2020-06-12 | Noise reduction device of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212272544U true CN212272544U (en) | 2021-01-01 |
Family
ID=73882840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021092443.5U Expired - Fee Related CN212272544U (en) | 2020-06-12 | 2020-06-12 | Noise reduction device of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212272544U (en) |
-
2020
- 2020-06-12 CN CN202021092443.5U patent/CN212272544U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |