CN203161532U - Heat tube inner cooling dry type screw vacuum pump - Google Patents
Heat tube inner cooling dry type screw vacuum pump Download PDFInfo
- Publication number
- CN203161532U CN203161532U CN 201320180901 CN201320180901U CN203161532U CN 203161532 U CN203161532 U CN 203161532U CN 201320180901 CN201320180901 CN 201320180901 CN 201320180901 U CN201320180901 U CN 201320180901U CN 203161532 U CN203161532 U CN 203161532U
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- Prior art keywords
- screw
- vacuum pump
- handed screw
- heat pipe
- cooling
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Abstract
The utility model relates to a vacuum production apparatus, and particularly provides a heat tube inner cooling dry type screw vacuum pump in which two screws are designed to be in a hollow structure. According to the heat tube inner cooling dry type screw vacuum pump provided by the utility model, the screws are manufactured to be in a hollow structure, and the inner part of each screw serves as a cooling chamber, so that convenience is provided for cooling the screws and carrying away heat generated in the working process of the screws, thus achieving the purpose of lowering the surface temperature of the screws; and the temperature of the working surfaces of the screws is lowered, so that the problems of medium solidification and carbon deposition in the medium pumping process by means of the screw pump can be effectively solved, thus greatly prolonging the working life of the screws.
Description
Technical field
The utility model relates to pumping equipment, is two screw rods are made into the dry screw vacuum pump that cools off in hollow and the employing heat pipe.
Background technique
Screw vacuum pump has been proved to be the dry vacuum pump of function admirable, it has, and ultimate pressure is low, vacuum system is simple and direct, active chamber does not have any medium, can obtain clean vacuum, advantages such as applied widely, environmental protection, be applied to all trades and professions more and more, replace traditional water ring vaccum pump and oil-sealed vacuum pump.Screw vacuum pump in the market is easy to generate medium and solidifies carbon distribution because the work cavity temperature is higher, has seriously influenced the working life of vacuum pump, and needs the curing carbon distribution in the periodic cleaning active chamber.
The model utility content
The utility model provides cooling dry screw vacuum pump in a kind of heat pipe in order to solve the above-mentioned problems in the prior art.
To achieve these goals, the technical solution adopted in the utility model is: cooling dry screw vacuum pump in a kind of heat pipe comprises the pump housing, motor, intermeshing right handed screw and left handed screw; The described pump housing, the mesospore that is installed in pump housing outside and exhaust cap constitute closed cavity jointly; Right handed screw and left handed screw are fixed on the screw axis; The two ends of screw axis are separately fixed on mesospore and the exhaust cap; The front end of described screw axis is equipped with driving gear; Motor drives left handed screw and right handed screw rotation by coupling and driving gear; Described right handed screw and left handed screw are hollow structure, and helical tooth inside is cooling chamber.
Described screw axis is hollow structure.
In the described cooling chamber cooling medium is housed, deaeration and sealing, thus form cooling structure in the hot tube.
Bonnet at the pump housing is equipped with cooling oil pump, and described cooling oil pump cools off screw axis.
Described exhaust cap is provided with relief opening.
The cooling dry screw vacuum pump is compared with existing screw vacuum pump and is had the following advantages in the heat pipe of the present utility model:
1. screw rod is made into hollow structure, screw rod inside is cooling chamber, is convenient to screw rod is cooled off, and the heat that screw rod work produces is taken away, thereby reached the purpose that reduces the screw surface temperature.Screw rod working surface temperature reduces, and can solve the problem that medium that screw pump produces in pumping the medium process solidifies carbon distribution effectively, has greatly improved the operating life of screw rod.
2. adopt the stainless steel hollow screw, alleviated rotor weight, saved the operation of screw rod working surface coating corrosion-inhibiting coating; Improve the running accuracy of screw rod, solved the problem that corrosion-inhibiting coating comes off, reduced the cost of production of screw rod.
3. the change of relief opening position, gas medium can be pumped in the process, liquid and solid particle that liquefaction and curing produce are discharged, and the material that has solved original screw pump generation can't be discharged, the problem that screw pump workpiece wearing and tearing are big has improved reliability and the operating life of screw pump.
Description of drawings
Fig. 1 is the general structure schematic representation of cooling dry screw vacuum pump in the heat pipe of the present utility model;
Fig. 2 is the external structure schematic representation of cooling dry screw vacuum pump in the heat pipe of the present utility model;
Fig. 3 is the structural representation of left handed screw and right handed screw among Fig. 1.
Embodiment
The cooling dry screw vacuum pump comprises the pump housing 4, motor 14, intermeshing right handed screw 7 and left handed screw 8 in embodiment's 1 heat pipe of the present utility model; The pump housing 4 is positioned at the outside of left handed screw 7 and right handed screw 8, constitutes closed cavity with the mesospore 10 that is installed on the pump housing 4 with exhaust cap 3.The helical tooth of right handed screw 7 and left handed screw 8 is hollow structure, and helical tooth inside is cooling chamber 6; Left handed screw 8 and right handed screw 7 are fixed on the screw axis 5, and screw axis is hollow structure, and screw axis 5 supports by bearing 11 and is installed on mesospore 10 and the exhaust cap 3, to guarantee the centre distance of right handed screw 7 and left handed screw 8; The screw axis two ends all are equipped with mechanical seal 9; The front end of screw axis 5 is equipped with driving gear 12, and assurance left handed screw 7 and right handed screw 8 are rotated synchronously, and can adjust the gap of two screw rods by adjusting the phase place of driving gear 12; Motor 14 is installed on the protecgulum 13, and motor 14 drives left handed screw 8 and right handed screw 7 rotations by coupling and a pair of driving gear 12, and pump housing inside airtight when screw rod rotates produces vacuum.
In the cooling chamber 6 of screw rod, inject cooling medium, deaeration and sealing, thus form cooling structure in the hot tube.At bonnet 21 pair of screw axis 5 of cooling oil pump being housed cools off.
Mesospore 10 is provided with suction port 16, and exhaust cap 3 is provided with relief opening 15.
Cooling dry screw vacuum pump in the heat pipe of the present utility model, right handed screw and left handed screw all have uniform pitch and two kinds of forms of variable pitch, and what present embodiment provided is constant lead screw.
Cooling dry screw vacuum pump in the heat pipe of the present utility model, right handed screw and left handed screw adopt stainless steel, have alleviated rotor weight, have saved the operation of screw rod working surface coating corrosion-inhibiting coating; Improve the running accuracy of screw rod, solved the problem that corrosion-inhibiting coating comes off, reduced the cost of production of screw rod.
Claims (7)
1. cool off dry screw vacuum pump in a heat pipe, comprise the pump housing, motor, intermeshing right handed screw and left handed screw; The described pump housing, the mesospore that is installed in pump housing outside and exhaust cap constitute closed cavity jointly; Right handed screw and left handed screw are installed in pump housing inside, and right handed screw and left handed screw are fixed on the screw axis; The two ends of screw axis are separately fixed on mesospore and the exhaust cap; The front end of described screw axis is equipped with driving gear; Motor drives left handed screw and right handed screw rotation by coupling and driving gear; It is characterized in that: described right handed screw and left handed screw are hollow structure, and helical tooth inside is cooling chamber.
2. cool off dry screw vacuum pump in the heat pipe according to claim 1, it is characterized in that: described screw axis is hollow structure.
3. cooling dry screw vacuum pump in the heat pipe according to claim 1 and 2 is characterized in that: in the described cooling chamber cooling medium is housed.
4. cool off dry screw vacuum pump in the heat pipe according to claim 1 and 2, it is characterized in that: the bonnet at the pump housing is equipped with cooling oil pump, and described cooling oil pump cools off screw axis.
5. cool off dry screw vacuum pump in the heat pipe according to claim 1 and 2, it is characterized in that: described exhaust cap is provided with relief opening.
6. cool off dry screw vacuum pump in the heat pipe according to claim 1 and 2, it is characterized in that: left handed screw and right handed screw adopt stainless steel to process.
7. cooling dry screw vacuum pump in the heat pipe according to claim 1 and 2 is characterized in that: described right handed screw and left handed screw have two kinds of uniform pitch and variable pitchs respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180901 CN203161532U (en) | 2013-04-03 | 2013-04-03 | Heat tube inner cooling dry type screw vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180901 CN203161532U (en) | 2013-04-03 | 2013-04-03 | Heat tube inner cooling dry type screw vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161532U true CN203161532U (en) | 2013-08-28 |
Family
ID=49022721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320180901 Expired - Lifetime CN203161532U (en) | 2013-04-03 | 2013-04-03 | Heat tube inner cooling dry type screw vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161532U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267015A (en) * | 2013-04-03 | 2013-08-28 | 威海智德真空科技有限公司 | Heat pipe internal cooling dry type screw rods vavuum pump |
| CN111677663A (en) * | 2020-06-23 | 2020-09-18 | 朱克龙 | High-pressure efficient vacuum energy-saving pump |
| CN114165440A (en) * | 2021-10-21 | 2022-03-11 | 深圳技术大学 | Multi-head bilateral symmetrical arc variable-pitch screw |
-
2013
- 2013-04-03 CN CN 201320180901 patent/CN203161532U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267015A (en) * | 2013-04-03 | 2013-08-28 | 威海智德真空科技有限公司 | Heat pipe internal cooling dry type screw rods vavuum pump |
| CN111677663A (en) * | 2020-06-23 | 2020-09-18 | 朱克龙 | High-pressure efficient vacuum energy-saving pump |
| CN114165440A (en) * | 2021-10-21 | 2022-03-11 | 深圳技术大学 | Multi-head bilateral symmetrical arc variable-pitch screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |