CN205478309U - Low noise vacuum pump - Google Patents
Low noise vacuum pump Download PDFInfo
- Publication number
- CN205478309U CN205478309U CN201620149492.5U CN201620149492U CN205478309U CN 205478309 U CN205478309 U CN 205478309U CN 201620149492 U CN201620149492 U CN 201620149492U CN 205478309 U CN205478309 U CN 205478309U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- vacuum pump
- rotor
- pump
- pump housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a low noise vacuum pump, including back lid, the pump body, protecgulum, support and motor, back lid, the pump body, protecgulum, support and motor be fixed connection in proper order, back lid front end is provided with the sight glass, sight glass and back lid sealing connection, pump body both ends are provided with the midfeather, midfeather and pump body welding, be provided with the rotor in the pump body, the rotor is equipped with two, the rotor is the two lobe rotor, be provided with the bearing seal in the middle of protecgulum and the support, install the oil cup on the bearing seal, the shaft coupling is installed to the motor front end, be provided with the main shaft on the shaft coupling, the main shaft is equipped with two, the main shaft both ends are provided with the axle sleeve, the axle sleeve is held with the midfeather card and is connected, the main shaft rotates with the axle sleeve to be connected, this low noise vacuum pump compact structure, and the operation is stable, and the noise is little, controls the convenience, and is sealed effectual.
Description
Technical field
This utility model relates to a kind of pump housing technical field, particularly relates to a kind of low-noise vacuum pump.
Background technology
Vacuum pump refers to utilize machinery, physics, chemically or physically chemical method to be bled and the device or the equipment that obtain vacuum to taking out container.From the point of view of popular, vacuum pump is the device improving, produce and maintaining vacuum by various methods in a certain closing space.By the operation principle of vacuum pump, vacuum pump substantially can be divided into two types, i.e. gas trapping pump and gas transmission pump.It is widely used in the industries such as metallurgy, chemical industry, food, electronics plated film.
Along with the development of vacuum application, the kind of vacuum pump has been developed in a variety of, and its pumping speed is raised to hundreds of thousands per second, millions of liter from zero point per second is several.Along with vacuum technique is producing and to be applied to the requirement of pressure range in field of scientific study more and more wider, mostly need to be made up of several vacuum pumps could meet after vacuum-pumping system is bled jointly to produce and the requirement of scientific research process, the scope of the operating pressure involved by vacuum application department is the widest, therefore the vacuum pump of any type is impossible to be completely suitable for all of working pressure range, different types of vacuum pump can only be used according to different working pressure ranges and different job requirements.For the needs of easy to use and various vacuum technology processes, sometimes various vacuum pumps are combined by its performance requirement, apply with unit pattern.
Conventional vacuum pump includes dry screw vacuum pump, water ring pump, reciprocating pump, slide valve pump, sliding vane rotary pump, lobe pump and diffusion pump etc., and these pumps are requisite main force pump kinds during Chinese national economy every profession and trade application vacuum technology.In recent years,
Growing continuously and fast along with China's economy, vacuum pump associated downstream application industry keeps quick growth, and simultaneously under jointly the pulling of the factors such as vacuum pump application field constantly expansion, China's vacuum pump industry achieves and the most quickly develops.
The arrangement of the pump housing of vacuum pump determines the population structure of pump.The inlet and outlet mouth of vertical structure is horizontally disposed with, and assembling and connecting line are the most more convenient.But the center of gravity of pump is higher, the poor stability when running up, therefore this pattern is used for little pump.The air inlet of horizontal pump upper, air vent under.Easy to connect sometimes for vacuum system Pipe installing, air vent can be picked out from horizontal direction, i.e. inlet and outlet direction is orthogonal.Now, air vent can both direction opening from the left or right, in addition to feed channel one end of running in, the other end blocks or connects bypass valve.This pump configuration center of gravity is low, good stability when running up.General large and medium-sized pump adopts the structure more.
Two armature spindles of pump are installed with horizontal plane.This Standard gap is easily controlled, and rotor is easy to assembly, and pump floor space is little.But pump center of gravity is higher and gear dismounting inconvenience, and lubricating structure is the most relative complex.Two rotors of vacuum pump realize its relative synchronization by a pair high class gear and operate.Driving shaft is coupled with motor by shaft coupling.Following two is mainly had: first motor and gear are placed on the same side such as figure of rotor on drive mechanism is arranged.Driven rotor is transmitted through driving by motor terminal direct geared, and the torsional deflection of such power rotor axle is little, then the gap between two rotors will not change because the torsional deflection of driving shaft is big, therefore makes the gap between rotor uniform in operation process.The disadvantage of this kind of drive is: have three bearings on driving shaft, adds processing and the assembly difficulty of pump, the dismounting of gear and adjustment also inconvenience；Overall structure unshapeliness, the center of gravity deflection motor of pump and gear-box side.
Current existing vacuum pump operation stability is poor, uses noise big, and using effect is bad.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of compact conformation, and stable, noise is little, and manipulation is convenient, the low-noise vacuum pump of good sealing effect.
For solving the problems referred to above, this utility model adopts the following technical scheme that
nullA kind of low-noise vacuum pump，Including bonnet、The pump housing、Protecgulum、Support and motor，Described bonnet、The pump housing、Protecgulum、Support and motor are fixedly connected sequentially，Described bonnet front end is provided with visor，The bonnet arranged、The pump housing、Protecgulum and support can keep compact overall structure，Midfeather can keep pump body structure intensity high，Good stability，Service life is long，Visor can be real-time observation the pump housing in situation，The lubricating cup that axle is sealed up is convenient adds machine oil，Described visor is tightly connected with bonnet，Described pump housing two ends are provided with midfeather，Described midfeather welds with the pump housing，It is provided with rotor in the described pump housing，Described rotor is provided with two，Described rotor is two lobe rotor，Axle envelope it is provided with in the middle of described protecgulum and support，Described axle is sealed up and is provided with lubricating cup，Described motor front end is provided with shaft coupling，It is provided with main shaft on described shaft coupling，The sealing effectiveness that holding shaft envelope is good，Axle sleeve can keep main axis stable，Gear engages each other，Main shaft stability when high-speed rotation can be kept high，Noise is little，Expansion set and nut can keep gear to firmly install，Air inlet and gas outlet keep air discharge unobstructed，Described main shaft is provided with two，Described main shaft two ends are provided with axle sleeve，Described axle sleeve is connected with midfeather clamping，Described main shaft is rotationally connected with axle sleeve，Inside described axle sleeve, mechanical seal is set，Described rotor is fixing with main shaft to be connected，Described front-end of spindle is provided with gear，Described gear is provided with two，Described gear engages each other，Described gear both sides are respectively arranged with expansion set and nut，Described expansion set is connected with main shaft clamping，Described nut is connected with spindle thread，The upper and lower two ends of the described pump housing are respectively arranged with air inlet and gas outlet.
Further, resistance formula acoustic filter it is provided with in described gas outlet, it is possible to reduce the noise of gas outlet.
Further, described pump housing both sides are provided with leg, facilitate the installation of the pump housing.
Further, the described pump housing welds with leg, keeps Stability Analysis of Structures reliable.
Further, described air inlet diameter is more than gas outlet diameter, it is possible to keeps gas outlet air pressure supercharging, facilitates air to discharge.
Further, described motor is servomotor, facilitates motor smooth starting.
Further, described motor is provided with driver, the convenient electric current regulating motor.
The beneficial effects of the utility model are: the bonnet of setting, the pump housing, protecgulum and support can keep compact overall structure, midfeather can keep pump body structure intensity high, good stability, service life is long, visor can be real-time observation the pump housing in situation, the lubricating cup that axle is sealed up is convenient adds machine oil, the sealing effectiveness that holding shaft envelope is good, axle sleeve can keep main axis stable, gear engages each other, main shaft stability when high-speed rotation can be kept high, noise is little, expansion set and nut can keep gear to firmly install, air inlet and gas outlet keep air discharge unobstructed.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of low-noise vacuum pump of the present utility model.
Fig. 2 is the sectional view of the rotor of a kind of low-noise vacuum pump of the present utility model.
Detailed description of the invention
nullRefering to shown in Fig. 1 and Fig. 2，A kind of low-noise vacuum pump，Including bonnet 1、The pump housing 2、Protecgulum 3、Support 4 and motor 5，Described bonnet 1、The pump housing 2、Protecgulum 3、Support 4 and motor 5 are fixedly connected sequentially，Described bonnet 1 front end is provided with visor 6，Described visor 6 is tightly connected with bonnet 1，The described pump housing 2 two ends are provided with midfeather 7，Described midfeather 7 welds with the pump housing 2，It is provided with rotor 8 in the described pump housing 2，Described rotor 8 is provided with two，Described rotor 8 is two lobe rotor，Axle envelope 9 it is provided with in the middle of described protecgulum 3 and support 4，In described axle envelope 9, lubricating cup 10 is installed，Described motor 5 front end is provided with shaft coupling 11，It is provided with main shaft 12 on described shaft coupling 11，Described main shaft 12 is provided with two，Described main shaft 12 two ends are provided with axle sleeve 13，Described axle sleeve 13 is connected with midfeather 7 clamping，In use，Starting motor 5 by driver 22 can make two main shafts 12 rotate，Rotor driven 8 rotates，Vacuum can be formed at the pump housing 2，Air is kept to enter from air inlet 18，Gas outlet 19 is discharged，Described main shaft 12 is rotationally connected with axle sleeve 13，Inside described axle sleeve 13, mechanical seal 14 is set，Described rotor 8 is fixing with main shaft 12 to be connected，Described main shaft 12 front end is provided with gear 15，Described gear 15 is provided with two，Described gear 15 engages each other，Described gear 15 both sides are respectively arranged with expansion set 16 and nut 17，Described expansion set 16 is connected with main shaft 12 clamping，Described nut 17 is threadeded with main shaft 12，The described pump housing about 2 two ends are respectively arranged with air inlet 18 and gas outlet 19.
Resistance formula acoustic filter 20 it is provided with in described gas outlet 19.
The described pump housing 2 both sides are provided with leg 21.
The described pump housing 2 welds with leg 21.
Described air inlet 18 diameter is more than gas outlet diameter 19.
Described motor 5 is servomotor.
On described motor 5, driver 22 is installed.
In use, starting motor 5 by driver 22 and two main shafts 12 can be made to rotate, rotor driven 8 rotates, and can form vacuum at the pump housing 2, keeps air to enter from air inlet 18, and gas outlet 19 is discharged.
The beneficial effects of the utility model are: the bonnet of setting, the pump housing, protecgulum and support can keep compact overall structure, midfeather can keep pump body structure intensity high, good stability, service life is long, visor can be real-time observation the pump housing in situation, the lubricating cup that axle is sealed up is convenient adds machine oil, the sealing effectiveness that holding shaft envelope is good, axle sleeve can keep main axis stable, gear engages each other, main shaft stability when high-speed rotation can be kept high, noise is little, expansion set and nut can keep gear to firmly install, air inlet and gas outlet keep air discharge unobstructed.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any change expected without creative work or replacement; all should contain within protection domain of the present utility model; therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims are limited.
Claims (7)
- null1. a low-noise vacuum pump，It is characterized in that: include bonnet、The pump housing、Protecgulum、Support and motor，Described bonnet、The pump housing、Protecgulum、Support and motor are fixedly connected sequentially，Described bonnet front end is provided with visor，Described visor is tightly connected with bonnet，Described pump housing two ends are provided with midfeather，Described midfeather welds with the pump housing，It is provided with rotor in the described pump housing，Described rotor is provided with two，Described rotor is two lobe rotor，Axle envelope it is provided with in the middle of described protecgulum and support，Described axle is sealed up and is provided with lubricating cup，Described motor front end is provided with shaft coupling，It is provided with main shaft on described shaft coupling，Described main shaft is provided with two，Described main shaft two ends are provided with axle sleeve，Described axle sleeve is connected with midfeather clamping，Described main shaft is rotationally connected with axle sleeve，Inside described axle sleeve, mechanical seal is set，Described rotor is fixing with main shaft to be connected，Described front-end of spindle is provided with gear，Described gear is provided with two，Described gear engages each other，Described gear both sides are respectively arranged with expansion set and nut，Described expansion set is connected with main shaft clamping，Described nut is connected with spindle thread，The upper and lower two ends of the described pump housing are respectively arranged with air inlet and gas outlet.
- 2. low-noise vacuum pump as claimed in claim 1, it is characterised in that: it is provided with resistance formula acoustic filter in described gas outlet.
- 3. low-noise vacuum pump as claimed in claim 2, it is characterised in that: described pump housing both sides are provided with leg.
- 4. low-noise vacuum pump as claimed in claim 3, it is characterised in that: the described pump housing welds with leg.
- 5. low-noise vacuum pump as claimed in claim 4, it is characterised in that: described air inlet diameter is more than gas outlet diameter.
- 6. low-noise vacuum pump as claimed in claim 5, it is characterised in that: described motor is servomotor.
- 7. low-noise vacuum pump as claimed in claim 6, it is characterised in that: on described motor, driver is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620149492.5U CN205478309U (en) | 2016-02-29 | 2016-02-29 | Low noise vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620149492.5U CN205478309U (en) | 2016-02-29 | 2016-02-29 | Low noise vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478309U true CN205478309U (en) | 2016-08-17 |
Family
ID=56678177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620149492.5U Expired - Fee Related CN205478309U (en) | 2016-02-29 | 2016-02-29 | Low noise vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626535A (en) * | 2016-02-29 | 2016-06-01 | 芜湖环球汽车配件有限公司 | Low-noise vacuum pump |
-
2016
- 2016-02-29 CN CN201620149492.5U patent/CN205478309U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626535A (en) * | 2016-02-29 | 2016-06-01 | 芜湖环球汽车配件有限公司 | Low-noise vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170229 |