CN2503232Y - High-pressure-resistant multi-stage claw-type rotor vacuum pump - Google Patents
High-pressure-resistant multi-stage claw-type rotor vacuum pump Download PDFInfo
- Publication number
- CN2503232Y CN2503232Y CN 01231385 CN01231385U CN2503232Y CN 2503232 Y CN2503232 Y CN 2503232Y CN 01231385 CN01231385 CN 01231385 CN 01231385 U CN01231385 U CN 01231385U CN 2503232 Y CN2503232 Y CN 2503232Y
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- China
- Prior art keywords
- pump chamber
- driving shaft
- high pressure
- vacuum pump
- fuel tank
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- 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 relates to a vacuum pump with multilevel claw type of high pressure resistance that includes a multilevel pump cavity, a rotor pair arranged inside the pump cavity, a driving shaft and a driven shaft that are parallel to each other as well as an electromotor; wherein, the rotor at each level comprises two claw type rotors that are meshed with each other; the angle of an axes of the driving shaft against of the length of an exhausting orifice is 90 degrees to 135 degrees; and the two sides of the driving shaft, the driven shaft and a bearing seat of the vacuum pump are all provided with cooling water accesses. Because the length of the exhausting orifice is prolonged, the compressed air is discharged to the pump cavity of the next level before reaching a high pressure, and the compression heat caused in each level is reduced; besides, the radiating function is improved by the adopted two cooling water accesses, thus the utility model is unlikely to have clamping problem caused by heat expanding under in a work environment of high pressure for a long time.
Description
The utility model relates to oil-free vacuum pump, is specially a kind of anti-
Common pawl formula oil-free vacuum pump owing to pursue the higher speed of exhaust and limiting vacuum, is just opened air outlet flue after often gas will being compressed as much as possible and is discharged to the next stage pump chamber in every grade pump chamber.Because the gas of high compression ratio produces a large amount of heat of compression the pump housing can not in time be shed these heats, when working long hours in high pressure conditions following time, the temperature of the pump housing can be more and more higher, cause rotatingshaft and rotor to rise to producing heat, because rotor is pair very little with the gap of pump chamber, the result that rotor rises to heat causes friction between the two and the vacuum pump locking can not be worked on.
The purpose of this utility model just provides and a kind ofly can shift to an earlier date exhaust, reduces the heat of compression, has two cooling channels, thereby prevent the rise high pressure resistant multistage claw rotor vacuum pump of locking of heat.
The technical solution of the utility model is: comprise multistage pump chamber, the rotor that is positioned at this pump chamber is right, driving shaft that is parallel to each other and driven shaft, motor, rotors at different levels are to forming by two intermeshing claw rotors, driving shaft and driven shaft pass every grade of pump chamber, bearing fixing is respectively arranged on the wall of the chamber at the two ends of multistage pump chamber down thereon, diaxon respectively connects an intermeshed gear, the motor drives driving wheel rotates, on the upper and lower cavity wall of every grade of pump chamber inlet hole and exhaust port are arranged, it is characterized in that: the angle in the pairing driving shaft of the length of described exhaust port axle center is 90 °-135 °; There is cooling water passage both sides at master and slave moving axis and pump chamber bearing support.
Described claw rotor is two pawl rotors of monodactyle rotor or symmetry.
The seal ring that two flat line offsets are arranged between the periphery of every grade of pump chamber end face, between these two seal rings, have two along long to cooling water passage, a water intake and water outlet are respectively arranged.
The cooling water passage of described pump chamber bearing support both sides is two, and this passage of homonymy is by passage polyphone vertical on the pump chamber wall up and down independently along the passage of diaxon bearing both sides, and the channels in series of every side has an intake-outlet.
Below the described multistage pump housing, connect a fuel tank, the gear of described driving shaft and driven shaft one end places this fuel tank near the bottom, belt pulley on the driving shaft is positioned at the top of gear, motor is erect and is placed fuel tank on the loam cake of extension, pump housing side, its rotating shaft is stretched into downwards in the fuel tank, and a side bottom of fuel tank has a groove.An intake-outlet is arranged.
Below the described multistage pump housing, connect a fuel tank, the gear of described driving shaft and driven shaft one end places this fuel tank near the bottom, belt pulley on the driving shaft is positioned at the top of gear, motor is erect and is placed fuel tank on the loam cake of extension, pump housing side, its rotating shaft is stretched into downwards in the fuel tank, and a side bottom of fuel tank has a groove.
The utility model has the advantages that: because exhaust port has been prolonged several angle, just be discharged to the next stage pump chamber when making the gas of compression also not reach very High Voltage, reduced the heat of compression of every grade of generation; Add two heat sinking functions that the cooling channel strengthened taking, the utility model can be worked for a long time also can not take place the heat locking phenomenon that rises under anticyclonic condition.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a front section view of the present utility model;
Fig. 2 is the side sectional view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1.
Embodiment
Referring to Fig. 1 and Fig. 2, this reality has the novel multistage pump chamber 1 that comprises, the rotor that is positioned at this pump chamber is to 6, driving shaft 21 that is parallel to each other and driven shaft 22, motor 23, rotors at different levels are formed by two intermeshing claw rotors 6, driving shaft 21 and driven shaft 22 pass every grade of pump chamber 1, respectively there is down bearing 24 to be fixed on the bearing support 25 at two ends of multistage pump chamber thereon, diaxon respectively connects an intermeshed gear 12, inlet hole 7 and exhaust port 5 are arranged on the upper and lower cavity wall of every grade of pump chamber 1, and the angle in the pairing driving shaft of the length of described exhaust port 5 21 axle center is 90 °-135 °; There is cooling water passage 10 both sides at master and slave moving axis and pump chamber bearing support 25.The passage of every side is formed by connecting by two semicircles around bearing motto 25 outsides.
Described claw rotor is two pawl rotors of monodactyle rotor or symmetry.Present embodiment is two pawl rotors of symmetry.
The seal ring 2 that two flat line offsets are arranged between the periphery of the end face of every grade of pump chamber 1 places respectively in the corresponding seal groove 9, between these two seal rings, have two along long to cooling water passage 4, a water intake and water outlet (not shown) are respectively arranged.
The cooling water passage 10 of described pump chamber bearing support 25 both sides be two independently along the passage of diaxon bearing both sides, this passage of homonymy is by passage (not shown) polyphone vertical on pump chamber 1 wall up and down, and the channels in series of every side has an intake-outlet (not shown).
Below described multistage pump body cavity 1, connect a fuel tank 15, the gear 12 of described driving shaft 21 and driven shaft 22 1 ends is near this fuel tank bottom, belt pulley 16 on the driving shaft 22 is positioned at the top of gear 12, motor 23 is erect and is placed fuel tank 15 on the loam cake of extension, pump housing side, its rotating shaft is stretched into downwards in the fuel tank 15, belt pulley 3 is arranged in this rotating shaft, have belt 14 to be connected thereon with belt pulley 16 on the driving shaft 21.One side bottom of fuel tank 15 has a groove 18.Between bottom pump chamber wall and driving shaft 21 and driven shaft 22, oil sealing is arranged, enter in the pump chamber 1 preventing lubricant oil.The line of band arrow is an airflow direction among Fig. 1.
Referring to Fig. 3, express the interior rotor of one-level pump chamber of the present utility model to 6, to form by two intermeshing two symmetric double claw rotors with symmetry, its function of bleeding is realized along direction of arrow running 6 high-speed synchronous by rotor.Suction port 7 among the figure is pump chamber at the corresponding levels 1 row suction ports to subordinate, so it interconnects by the hole 20 in the middle of the wall of chamber with relief opening 5 at the corresponding levels.The advantage of symmetry claw rotor is a symmetrical configuration, and balance is good when high speed rotating.Also can adopt monodactyle formula rotor can realize the purpose of this utility model equally.
The utility model is when work, motor 23 drives driving shaft 21 by belt 14 and rotates, follower 22 is also made synchronous backward and is rotated along with driving shaft under the drive of gear 12, every grade of rotor to 6 under the drive of two axles 21,22 high speed rotating, gas is from suction port 7 suction of the first order and be compressed into the suction port that relief opening 5 enters next stage, because every grade relief opening has prolonged angle, discharges gas in advance, every grade compression ratio is reduced, reduced the heat of compression.This pump can be worked long hours under the environment of atmosphere, so also can be used to transport gas.
The utility model also is provided with the wall of pump chamber 1 and the cooling water passage 4 and 10 of rotating shaft axle pump seat 25 both sides.For the cooling effect that makes both sides is identical, the cooling water passage of the both sides cooling water that is connected in parallel has relatively shortened the length of cooling water process in the pump housing, has strengthened cooling effect.
Referring to Fig. 2, one side has a groove 18 in the bottom of fuel tank, lubricant oil in the fuel tank 15 all is stored in this groove, one fueling injection equipment, 13 (see figure 1)s can be set, by oil pipe 19 lubricant oil is sprayed onto on the driving gear 12, this lubricating method makes oil away from pump chamber as far as possible, has reduced the equipment and the contaminated possibility of container that are evacuated.In order to reduce operating noise, can baffler 8 be set in addition at the outside relief opening of the pump housing.
Claims (5)
1, a kind of high pressure resistant multistage claw rotor vacuum pump, comprise multistage pump chamber, the rotor that is positioned at this pump chamber is right, driving shaft that is parallel to each other and driven shaft, motor, rotors at different levels are to forming by two intermeshing claw rotors, driving shaft and driven shaft pass every grade of pump chamber, bearing fixing is respectively arranged on the bearing support at the two ends of multistage pump chamber down thereon, diaxon respectively connects an intermeshed gear, the motor drives driving shaft rotates, on the upper and lower cavity wall of every grade of pump chamber inlet hole and exhaust port are arranged, it is characterized in that: the angle in the pairing driving shaft of the length of described exhaust port axle center is 90 °-135 °; There is cooling water passage both sides at master and slave moving axis and pump chamber bearing support.
2, high pressure resistant multistage claw rotor vacuum pump according to claim 1 is characterized in that: described claw rotor is two pawl rotors of monodactyle rotor or symmetry.
3, high pressure resistant multistage claw rotor vacuum pump according to claim 1, it is characterized in that: the seal ring that two flat line offsets are arranged between the periphery of every grade of pump chamber end face, between these two seal rings, have two along long to cooling water passage, a water intake and water outlet are respectively arranged.
4, high pressure resistant multistage claw rotor vacuum pump according to claim 1, it is characterized in that: the cooling water passage of described pump chamber bearing support both sides be two independently along the passage of diaxon bearing both sides, this passage of homonymy is by passage polyphone vertical on the pump chamber wall up and down, and the channels in series of every side has an intake-outlet.
5, high pressure resistant multistage claw rotor vacuum pump according to claim 1, it is characterized in that: below the described multistage pump housing, connect a fuel tank, the gear of described driving shaft and driven shaft one end is near this fuel tank bottom, belt pulley on the driving shaft is positioned at the top of gear, motor is erect and is placed fuel tank on the loam cake of extension, pump housing side, its rotating shaft is stretched into downwards in the fuel tank, and a side bottom at fuel tank place has a groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01231385 CN2503232Y (en) | 2001-07-13 | 2001-07-13 | High-pressure-resistant multi-stage claw-type rotor vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01231385 CN2503232Y (en) | 2001-07-13 | 2001-07-13 | High-pressure-resistant multi-stage claw-type rotor vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2503232Y true CN2503232Y (en) | 2002-07-31 |
Family
ID=33645653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01231385 Expired - Fee Related CN2503232Y (en) | 2001-07-13 | 2001-07-13 | High-pressure-resistant multi-stage claw-type rotor vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2503232Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340773C (en) * | 2004-07-02 | 2007-10-03 | 郎风 | Internal heat exchanging vortex mechanism |
| CN102852798A (en) * | 2012-08-14 | 2013-01-02 | 杭州新安江工业泵有限公司 | Roots vacuum pump cooling system |
| CN102926826A (en) * | 2012-11-20 | 2013-02-13 | 中国石油大学(华东) | Claw type generator power generation circulating device for thermal power generation |
| CN103104496A (en) * | 2011-11-11 | 2013-05-15 | 中国科学院沈阳科学仪器研制中心有限公司 | Vacuum pump water-cooling structure |
| CN105888757A (en) * | 2016-06-23 | 2016-08-24 | 中国石油大学(华东) | Closed circulating power generation device |
| CN109026709A (en) * | 2018-09-18 | 2018-12-18 | 世通海泰泵业（天津）股份有限公司 | Multiple compression vacuum pump |
| CN115853774A (en) * | 2022-04-11 | 2023-03-28 | 北京通嘉宏瑞科技有限公司 | Vacuum pump with special-shaped sealing structure for preventing internal and external leakage and manufacturing method thereof |
-
2001
- 2001-07-13 CN CN 01231385 patent/CN2503232Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340773C (en) * | 2004-07-02 | 2007-10-03 | 郎风 | Internal heat exchanging vortex mechanism |
| CN103104496A (en) * | 2011-11-11 | 2013-05-15 | 中国科学院沈阳科学仪器研制中心有限公司 | Vacuum pump water-cooling structure |
| CN102852798A (en) * | 2012-08-14 | 2013-01-02 | 杭州新安江工业泵有限公司 | Roots vacuum pump cooling system |
| CN102852798B (en) * | 2012-08-14 | 2015-05-20 | 杭州新安江工业泵有限公司 | Roots vacuum pump cooling system |
| CN102926826A (en) * | 2012-11-20 | 2013-02-13 | 中国石油大学(华东) | Claw type generator power generation circulating device for thermal power generation |
| CN102926826B (en) * | 2012-11-20 | 2015-12-09 | 中国石油大学(华东) | For the claw engine power generation circulation means of heat generating |
| CN105888757A (en) * | 2016-06-23 | 2016-08-24 | 中国石油大学(华东) | Closed circulating power generation device |
| CN109026709A (en) * | 2018-09-18 | 2018-12-18 | 世通海泰泵业（天津）股份有限公司 | Multiple compression vacuum pump |
| CN115853774A (en) * | 2022-04-11 | 2023-03-28 | 北京通嘉宏瑞科技有限公司 | Vacuum pump with special-shaped sealing structure for preventing internal and external leakage and manufacturing method thereof |
| CN115853774B (en) * | 2022-04-11 | 2023-12-01 | 北京通嘉宏瑞科技有限公司 | Vacuum pump with special-shaped sealing structure capable of preventing internal leakage and external leakage and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |