CN207437357U - A kind of oil seal type oil-sealed rotary pump pump head - Google Patents
A kind of oil seal type oil-sealed rotary pump pump head Download PDFInfo
- Publication number
- CN207437357U CN207437357U CN201721462120.9U CN201721462120U CN207437357U CN 207437357 U CN207437357 U CN 207437357U CN 201721462120 U CN201721462120 U CN 201721462120U CN 207437357 U CN207437357 U CN 207437357U
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- housing
- seal type
- sealed rotary
- pump
- oil seal
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- Rotary Pumps (AREA)
Abstract
The utility model provides a kind of oil seal type oil-sealed rotary pump pump head, belongs to mechanical vacuum equipment technical field.It solves the problems, such as that existing vacuum pump heat dissipation effect is poor.This oil seal type oil-sealed rotary pump pump head, including housing, rotor, blade and inlet duct, the vacuum pump stator inner cavity that the inside of housing is an integral structure, it is circumferential and uniformly offer several sliding slots on rotor, blade is slidably provided in each sliding slot, limiting slot is offered on each blade, the radiation tooth two of several transversely arranged radiation tooths one and longitudinal arrangement is provided on the outside of housing, inlet duct is installed on case top by hex nut and is connected with housing cavity, and the bottom of housing is equipped with yielding rubber pad by screw rod.The utility model has the advantages that good heat dissipation effect and service life is longer.
Description
Technical field
The utility model belongs to mechanical vacuum equipment technical field, is related to a kind of vacuum pump, more particularly to a kind of oil seal type
Oil-sealed rotary pump pump head.
Background technology
Vacuum pump refers to be obtained to being evacuated by pumping container using machinery, physics, chemically or physically chemical method
The device or equipment of vacuum, for popular, vacuum pump is to improve, generate and maintain true in a certain enclosure space with various methods
Empty device.The effect of vacuum pump is exactly that gas molecule is extracted from vacuum chamber, reduces the indoor gas pressure of vacuum, is allowed to reach
To the vacuum degree of requirement.Sliding vane rotary vacuum pump on the market is generally using oil seal type mechanical structure at present, since vacuum pump is being run
When, blade, which constantly contacts friction with pump head cavity, will generate amount of heat, and pump head temperature is excessively high to will likely result in the true of vacuum pump
Reciprocal of duty cycle reduces, and the degree of purity of air is wherein inhaled at air inlet will influence the service life of vacuum pump.
The content of the invention
The purpose of this utility model be for the above-mentioned problems in the prior art, provide a kind of good heat dissipation effect and
The longer oil seal type oil-sealed rotary pump pump head of service life.
The purpose of this utility model can be realized by following technical proposal：A kind of oil seal type oil-sealed rotary pump pump head, bag
Include housing, rotor, blade and inlet duct, which is characterized in that the vacuum pump stator that the inside of the housing is an integral structure
Inner cavity, it is circumferential on the rotor and uniformly offer several sliding slots, blade is slidably provided in each sliding slot,
Limiting slot is offered on each blade, several transversely arranged radiation tooths one and longitudinal direction are provided on the outside of the housing
The radiation tooth two of arrangement, the inlet duct is installed on case top by hex nut and is connected with housing cavity, described
The bottom of housing is equipped with yielding rubber pad by screw rod.
The technique effect of this oil seal type oil-sealed rotary pump pump head is：Rotor eccentricity is installed in housing, and blade is in rotor
Radially slide in sliding slot and contacted with housing cavity, gap with by sealing, by blade slip make volume generate variation so as to
Realize vacuum, limiting slot can prevent blade deviation in sliding process, and several transversely arranged dissipate is provided on the outside of housing
The radiation tooth two of hot tooth one and longitudinal arrangement can increase its heat dissipation area by arranging radiation tooth in length and breadth, and effectively housing is produced
Raw heat radiates, and adds the heat dissipation effect of vacuum pump, and bottom is screwed by screw rod is equipped with rubber pad, reduces true
The vibrations that empty pump operation generates make its operation more stablize, and the connection structure of screw rod can be installed in process of production more to be accelerated
Speed reduces the production used time.
In a kind of above-mentioned oil seal type oil-sealed rotary pump pump head, the inlet duct includes the gas set that cooperates
Mouth and pedestal, are disposed with sealing ring, snap ring, filter plate and antiflowback valve between the gas nozzle and pedestal, the filter plate and
Antiflowback valve is installed in pedestal and passes through snap ring clamping fixed, and the contact surface of the gas nozzle and pedestal is sealed by sealing ring.
Filter plate clamping is made by snap ring inside inlet duct, facilitates the installation of worker, and can have by the design of filter plate
The impurity filtered out in air of effect increases the service life of vacuum pump.
In a kind of above-mentioned oil seal type oil-sealed rotary pump pump head, the bottom surface of the pedestal is also arranged with air inlet seat, described
Air inlet seat and antiflowback valve between spring is installed.
Atmospheric pressure is forced antiflowback valve to push generation interstitial air and is entered from gas nozzle in housing when its principle is air inlet, in housing
Portion's air will make antiflowback valve rise sealing once flowing out, and spring can further increase its effect, and the design of air inlet seat can be square
Just the installation of spring, air pass through at the circular hole of air inlet seat.
In a kind of above-mentioned oil seal type oil-sealed rotary pump pump head, the quantity of the sliding slot and blade is 3 groups.
In a kind of above-mentioned oil seal type oil-sealed rotary pump pump head, gas ballast valve is additionally provided with above the housing.
The effect of gas ballast valve can not only extract condensable gas out, and can also self-fractionating pump oil, if pump oil is condensed on a small quantity
Liquid pollutes, as long as pump steam inlet is blocked, then opens gas ballast valve, is evacuated through certain time, pump oil just can recover original property
Energy.
Compared with prior art, this oil seal type oil-sealed rotary pump pump head has good heat dissipation effect and longer excellent of service life
Point.
Description of the drawings
Fig. 1 is the configuration schematic diagram of this oil seal type oil-sealed rotary pump pump head.
Fig. 2 is the configuration schematic diagram of inlet duct in this oil seal type oil-sealed rotary pump pump head.
In figure, 1, housing；2nd, rotor；3rd, blade；4th, inlet duct；5th, sliding slot；6th, limiting slot；7th, radiation tooth one；8th, dissipate
Hot tooth two；9th, screw rod；10th, rubber pad；11st, gas nozzle；12nd, pedestal；13rd, sealing ring；14th, snap ring；15th, filter plate；16th, antiflowback valve；
17th, air inlet seat；18th, gas ballast valve.
Specific embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1 and Figure 2, this oil seal type oil-sealed rotary pump pump head, including housing 1, rotor 2, blade 3 and inlet duct
4, the vacuum pump stator inner cavity that the inside of housing 1 is an integral structure is circumferential on rotor 2 and uniformly offer several sliding slots 5,
Blade 3 is slidably provided in each sliding slot 5, limiting slot 6 is offered on each blade 3, the outside of housing 1 is provided with several horizontal strokes
The radiation tooth 28 of radiation tooth 1 and longitudinal arrangement to arrangement, inlet duct 4 are installed on 1 top of housing simultaneously by hex nut
It is connected with 1 inner cavity of housing, the bottom of housing 1 is equipped with yielding rubber pad 10 by screw rod 9.
Further describe in detail, inlet duct 4 includes the cooperate gas nozzle 11 set and pedestal 12, gas nozzle 11 and pedestal 12 it
Between be disposed with sealing ring 13, snap ring 14, filter plate 15 and antiflowback valve 16, filter plate 15 and antiflowback valve 16 are installed in pedestal 12 simultaneously
By 14 clamping fixed of snap ring, the contact surface of gas nozzle 11 and pedestal 12 is sealed by sealing ring 13.
The bottom surface of pedestal 12 is also arranged with air inlet seat 17, and spring is equipped between air inlet seat 17 and antiflowback valve 16；Sliding slot 5 with
The quantity of blade 3 is 3 groups；The top of housing 1 is additionally provided with gas ballast valve 18.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although housing 1, rotor 2, blade 3, inlet duct 4, sliding slot 5, limiting slot 6, radiation tooth is used more herein
One 7, radiation tooth 28, screw rod 9, rubber pad 10, gas nozzle 11, pedestal 12, sealing ring 13, snap ring 14, filter plate 15, antiflowback valve 16, into
The terms such as gas seat 17, gas ballast valve 18, but it does not preclude the possibility of using other terms.The use of these items is only for more
Easily describe and explain the essence of the utility model；It is all new with this practicality to be construed as any one of the additional limitations
Type spirit is disagreed.
Claims (5)
1. a kind of oil seal type oil-sealed rotary pump pump head, including housing（1）, rotor（2）, blade（3）And inlet duct（4）, it is special
Sign is, the housing（1）The vacuum pump stator inner cavity that is an integral structure of inside, the rotor（2）It is upper circumferential and equal
Even offers several sliding slots（5）, each sliding slot（5）Inside slidably it is provided with blade（3）, each blade
（3）On offer limiting slot（6）, the housing（1）Outside be provided with several transversely arranged radiation tooths one（7）With longitudinal row
The radiation tooth two of row（8）, the inlet duct（4）Housing is installed on by hex nut（1）Top and and housing（1）Inner cavity
Connection, the housing（1）Bottom pass through screw rod（9）Yielding rubber pad is installed（10）.
A kind of 2. oil seal type oil-sealed rotary pump pump head according to claim 1, which is characterized in that the inlet duct
（4）Include the gas nozzle for the setting that cooperates（11）And pedestal（12）, the gas nozzle（11）And pedestal（12）Between set gradually
There is sealing ring（13）, snap ring（14）, filter plate（15）And antiflowback valve（16）, the filter plate（15）And antiflowback valve（16）It is installed on bottom
Seat（12）It is interior and pass through snap ring（14）Clamping fixed, the gas nozzle（11）And pedestal（12）Contact surface pass through sealing ring（13）It is close
Envelope.
A kind of 3. oil seal type oil-sealed rotary pump pump head according to claim 2, which is characterized in that the pedestal（12）Bottom
Face is also arranged with air inlet seat（17）, the air inlet seat（17）With antiflowback valve（16）Between spring is installed.
A kind of 4. oil seal type oil-sealed rotary pump pump head according to claim 1, which is characterized in that the sliding slot（5）With rotation
Piece（3）Quantity be 3 groups.
A kind of 5. oil seal type oil-sealed rotary pump pump head according to claim 1, which is characterized in that the housing（1）It is upper
Side is additionally provided with gas ballast valve（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721462120.9U CN207437357U (en) | 2017-11-06 | 2017-11-06 | A kind of oil seal type oil-sealed rotary pump pump head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721462120.9U CN207437357U (en) | 2017-11-06 | 2017-11-06 | A kind of oil seal type oil-sealed rotary pump pump head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437357U true CN207437357U (en) | 2018-06-01 |
Family
ID=62291155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721462120.9U Expired - Fee Related CN207437357U (en) | 2017-11-06 | 2017-11-06 | A kind of oil seal type oil-sealed rotary pump pump head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654375A (en) * | 2017-11-06 | 2018-02-02 | 温岭市挺威真空设备有限公司 | A kind of oil seal type oil-sealed rotary pump pump head |
-
2017
- 2017-11-06 CN CN201721462120.9U patent/CN207437357U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654375A (en) * | 2017-11-06 | 2018-02-02 | 温岭市挺威真空设备有限公司 | A kind of oil seal type oil-sealed rotary pump pump head |
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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: 20180601 Termination date: 20191106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |