CN206458604U - A kind of single screw rod vavuum pump - Google Patents
A kind of single screw rod vavuum pump Download PDFInfo
- Publication number
- CN206458604U CN206458604U CN201720004241.2U CN201720004241U CN206458604U CN 206458604 U CN206458604 U CN 206458604U CN 201720004241 U CN201720004241 U CN 201720004241U CN 206458604 U CN206458604 U CN 206458604U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- casing
- gear body
- screw
- star gear
- 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
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 7
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 6
- 238000007906 compression Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000010070 molecular adhesion Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a kind of single screw rod vavuum pump, including connecting cylinder, screw rod, star gear body and casing, the connecting cylinder is interconnected and is mutually perpendicular to casing, screw rod is arranged in connecting cylinder, and the end of screw rod is placed in the front-end bearing pedestal of cabinet sides, completion is connected with the rotation of casing, the surface of screw rod is provided with multiple spiral helicine screw channels, and the screw channel of screw rod is partially disposed in casing, casing is equipped with star gear body in the both sides of screw rod, blade on star gear body excircle is placed in screw channel, star gear body is rotated with casing by bearing of planetary gear and is connected, casing offers air inlet and gas outlet respectively at the position of correspondence screw channel end, air inlet and gas outlet with screw channel UNICOM, the beneficial effects of the utility model are：Only it is made up of a screw rod and two star-wheels, thus required part is few, lightweight, compact conformation, floor space is small；During-operation service expense is low, and its machine efficiency is high, low in energy consumption, and vibration is small and noise is low, there is wide application market and development prospect.
Description
Technical field
The utility model is related to a kind of vavuum pump, specifically a kind of single screw rod vavuum pump.
Background technology
As the vavuum pump of air-extractor, with the difference that industry needs, there are various forms of vavuum pumps, twentieth century master
The product for leading this technical field is oil lubrication and sealed pump, and this kind of pump discharges mist of oil, seriously pollutes environment；It is only few
The special requirement of number industry, just using oil-less pump class or liquid-ring type pump class (wet pump), the vacuum of this kind of pump is not high, water consumption consumption
Can be serious, there is dry type requirement, it has to using cumbersome physics, chemisorbed, condense low temperature means, expensive, such as
Membrane pump, vacuum is not high, and pumping speed is small, adsorption pump, and not only pumping speed is small, liquid nitrogen it is very expensive, air can be directly discharged into a word
The pump class connected with high vacuum unit is that respectively have shortcoming, and dry pump is not suitable for big commercial Application, until the eighties of twentieth century,
A kind of claw pumps class comes out, but pumping speed is difficult to do big, and manufacture difficulty is big, cost is high；Also have in addition and gone here and there using leafy series
The lobe pump of connection, its shortcoming is as claw pumps.
Core component in Twin-screw vacuum pump is exactly a pair of oppositely oriented rotors being meshed, the design of molded lines of rotor
The performance of pump is directly influenced, molded lines of rotor research is both the basis of Twin-screw vacuum pump thermodynamic property research, is also optimization
Profile Design, the key for improving overall performance.As trade secret, reported in the document of actual available screw molded lines abroad
Seldom.
The shortcoming of country's vavuum pump is at present：Efficiency is high, noise is big, vibration is big, oil leak often occurs, maintenance cycle is short,
Use cost is high.
The content of the invention
The purpose of this utility model is to provide a kind of single screw rod vavuum pump, with asking for solving to propose in above-mentioned background technology
Topic.
To achieve the above object, the utility model provides following technical scheme：
A kind of single screw rod vavuum pump, including connecting cylinder, screw rod, star gear body and casing, the connecting cylinder are mutually interconnected with casing
Lead to and be mutually perpendicular to, screw rod is arranged in connecting cylinder, and the end of screw rod is placed in the front-end bearing pedestal of cabinet sides, is completed and machine
The rotation connection of shell, the surface of screw rod is provided with multiple spiral helicine screw channels, and the screw channel of screw rod is partially disposed in casing, and casing exists
The blade that the both sides of screw rod are equipped with star gear body, star gear body excircle is placed in screw channel, and star gear body passes through bearing of planetary gear and machine
Shell rotates connection, and casing offers air inlet and gas outlet, air inlet and gas outlet respectively at the position of correspondence screw channel end
With screw channel UNICOM.
It is used as further program of the utility model：The connecting cylinder is stepped down provided with shaft coupling.
It is used as the utility model further scheme：The casing is provided with main frame fuel feed hole, main frame fuel feed hole and machine
Shell UNICOM.
It is used as the utility model further scheme：Bearing lubrication oilhole is offered on the front-end bearing pedestal.
It is used as the utility model further scheme：The blade quantity ratio of the screw channel and star gear body is 6:11.
It is used as the utility model further scheme：Gap between the blade of the screw channel and star gear body is using lubrication
Oil is sealed.
Compared with prior art, the beneficial effects of the utility model are：Only it is made up of a screw rod and two star-wheels, thus
Required part is few, lightweight, and compact conformation, floor space is small；During-operation service expense is low, and its machine efficiency is high, low in energy consumption, vibration
Small and noise is low, there is wide application market and development prospect.
Brief description of the drawings
Fig. 1 is a kind of structural representation of single screw rod vavuum pump.
Fig. 2 is a kind of fundamental diagram of single screw rod vavuum pump（Air-breathing）.
Fig. 3 is a kind of fundamental diagram of single screw rod vavuum pump（Compression）.
Fig. 4 is a kind of fundamental diagram of single screw rod vavuum pump（Exhaust）.
In figure：1- connecting cylinders, 2- screw rods, 3- screw channels, 4- star gear bodies, 5- bearing of planetary gear, 6- front-end bearing pedestals, 7- casings, 8-
Main frame fuel feed hole, 9- shaft couplings are stepped down.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Referring to Fig. 1, a kind of single screw rod vavuum pump, including connecting cylinder 1, screw rod 2, star gear body 4 and casing 7, the connection
Cylinder 1 is interconnected and is mutually perpendicular to casing 7, and screw rod 2 is arranged in connecting cylinder 1, and the end of screw rod 2 is placed in the side of casing 7
Front-end bearing pedestal 6 in, completion is connected with the rotation of casing 7, and the surface of screw rod 2 is provided with multiple spiral helicine screw channels 3, and screw rod 2
Screw channel 3 be partially disposed in casing 7, screw channel 3 is as the volume unit of carrying gas, and casing 7 is equipped with star in the both sides of screw rod 2
Blade on wheel body 4, the excircle of star gear body 4 is placed in screw channel 3, and star gear body 4 is rotated with casing 7 by bearing of planetary gear 5 and is connected, machine
Shell offers air inlet and gas outlet respectively at the position of correspondence screw channel 3 end, air inlet and gas outlet with screw channel 3
Logical, operationally, gas is entered in screw channel 3 by air inlet, under the lattice gear effect of the blade of star gear body 4, the body of volume unit
Product is tapered into, and internal gas is compressed, until screw channel 3 is turned at gas outlet, gas is discharged.
The connecting cylinder 1 is provided with shaft coupling resigning 9, for installing the shaft coupling between screw rod 2 and motor.
The casing 7 is provided with main frame fuel feed hole 8, main frame fuel feed hole 8 and the UNICOM of casing 7.
Bearing lubrication oilhole is offered on the front-end bearing pedestal 6.
The blade quantity ratio of the screw channel 3 and star gear body 4 is 6:11, as prime number is without common divisor so that in gear motion
Even wearing, each blade can each inswept screw channel in turn in motion.
Gap between the blade of the screw channel 3 and star gear body 4 is sealed using lubricating oil, and lubricating oil is entering spiral shell
When in groove 3, turn into mist of oil in the presence of centrifugal force and high temperature, in the presence of molecular adhesion, be gathered in screw channel 3 and star-wheel
In gap between the blade of body 4, reduce gas direct leakage, and cooling gas, reduction power consumption and organism temperature work
With being conducive to the raising of vavuum pump performance.
Operation principle of the present utility model is：（1）Breathing process
Referring to Fig. 2, air is stepped into by air inlet in the screw channel 3 constantly expanded, because the area of air inlet is relative
The area of screw channel 3 is big, and gas flow rate is relatively low, and pressure loss can be ignored, therefore regard breathing process as isobaric procedure；
（2）Compression process
Referring to Fig. 3, while separating air inlet by the blade of star gear body 4, the element volume that gas is formed in screw channel 3
It is middle that pressure is improved by compression（Depending on the pressure of user's request）, untill when element volume and gas outlet are connected, this
Stage is compression process, and the volume of screw channel 3 is gradually decreased, and pressure and temperature constantly rises, therefore the compression process of gas is more than one
Variable thermodynamic process；
（3）Exhaust process
Referring to Fig. 4, when the element volume and the abrupt release pressure of gas outlet connection of the formation of screw channel 3, gas is stopped to outlet
Discharged outside mouthful, now element volume is continued to zoom out, but the pressure of intracavitary will not be improved, and can do isobaric procedure, and so-called exhaust is finished.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
, can also be on the premise of this patent objective not be departed from formula, the knowledge that one skilled in the relevant art possesses
Various changes can be made.
Claims (6)
1. a kind of single screw rod vavuum pump, including connecting cylinder, screw rod, star gear body and casing, it is characterised in that the connecting cylinder and machine
Shell phase is intercommunicated and is mutually perpendicular to, and screw rod is arranged in connecting cylinder, and the end of screw rod is placed in the front-end bearing pedestal of cabinet sides,
Completion is connected with the rotation of casing, and the surface of screw rod is provided with multiple spiral helicine screw channels, and the screw channel of screw rod is partially disposed in casing
Interior, the blade that casing is equipped with the both sides of screw rod on star gear body, star gear body excircle is placed in screw channel, and star gear body passes through star-wheel
Bearing is rotated with casing and is connected, and casing offers air inlet and gas outlet, air inlet respectively at the position of correspondence screw channel end
With gas outlet with screw channel UNICOM.
2. a kind of single screw rod vavuum pump according to claim 1, it is characterised in that the connecting cylinder allows provided with shaft coupling
Position.
3. a kind of single screw rod vavuum pump according to claim 1, it is characterised in that the casing is provided with main frame oil-feed
Hole, main frame fuel feed hole and casing UNICOM.
4. a kind of single screw rod vavuum pump according to claim 1, it is characterised in that offer bearing on the front-end bearing pedestal
Oilhole.
5. a kind of single screw rod vavuum pump according to claim 1, it is characterised in that the number of blade of the screw channel and star gear body
Amount is than being 6:11.
6. a kind of single screw rod vavuum pump according to claim 1, it is characterised in that the blade of the screw channel and star gear body it
Between gap sealed using lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004241.2U CN206458604U (en) | 2017-01-04 | 2017-01-04 | A kind of single screw rod vavuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004241.2U CN206458604U (en) | 2017-01-04 | 2017-01-04 | A kind of single screw rod vavuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458604U true CN206458604U (en) | 2017-09-01 |
Family
ID=59697681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720004241.2U Expired - Fee Related CN206458604U (en) | 2017-01-04 | 2017-01-04 | A kind of single screw rod vavuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593875A (en) * | 2017-01-04 | 2017-04-26 | 上海昕派实业有限公司 | Single-screw vacuum pump |
-
2017
- 2017-01-04 CN CN201720004241.2U patent/CN206458604U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593875A (en) * | 2017-01-04 | 2017-04-26 | 上海昕派实业有限公司 | Single-screw vacuum pump |
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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: 20170901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |