CN102926995B - Bi-rotor claw-type high current pump - Google Patents
Bi-rotor claw-type high current pump Download PDFInfo
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- CN102926995B CN102926995B CN201210462042.8A CN201210462042A CN102926995B CN 102926995 B CN102926995 B CN 102926995B CN 201210462042 A CN201210462042 A CN 201210462042A CN 102926995 B CN102926995 B CN 102926995B
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Abstract
The invention belongs to the technical field of vacuum pumps, and particularly relates to a bi-rotor claw-type high current pump. The pump comprises a motor, a pump body as well as a driving shaft and a driven shaft that are mounted in the pump body parallelly; a driving gear is assembled on the driving shaft; a driven gear meshed with the driving gear is assembled on the driven shaft; the driving shaft is connected with the motor; rotors are mounted on the driving shaft and the driven shaft and located in a pump cavity of the pump body, and adopt two-claw structures; and the two claws of the rotors are centrosymmetric. The rotors are designed into the two-claw structures; the problem that axial eccentricity of the signal-claw rotors in the traditional claw-type high current pump can be solved without adopting a multistage pump cavity; the difficulties of manufacturing, assembly and maintenance are reduced; the pump body is more stable at a high rotary speed, the mechanical property is more reliable, so that the service life of the pump can be prolonged; a principle of bi-rotor single-claw working is broken through; a theory of synchronous closing two-way working is applied ingeniously; the energy consumption is reduced; and the working efficiency of the claw-type high current pump is improved.
Description
Technical field
The present invention relates to bi-rotor claw-type high current pump, belong to vacuum pump technology field.
Background technique
The product of the outer vacuum pump industry of Present Domestic is mainly based on series such as ring type, piston reciprocating type, roots-type, screw type, rotary sheet types; The product of oil pump industry is mainly based on series such as gear pump, vane pump, screw pump, plunger pumps.Usually, also can according to the operating principle of pump be divided into have medium and without medium, have lubrication and unlubricated etc. dissimilar.But these products have reflected many Frequently Asked Questions in application practice for many years, and in use there is inconvenience, annoying the development of China's pump industry all the time.Claw pump is the one of vacuum pump, and nowadays China is in the development of claw pump, only has monodactyle a kind of, but because monodactyle rotor exists axially eccentric problem, therefore, need multistage pump chamber to complete the problem of centrifugal balance, preparation process is very complicated, thus cause assembling and maintenance loaded down with trivial details.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of simple and reasonable, autobalance that can realize rotor, reduce the bi-rotor claw-type high current pump of assembling and maintenance difficulty.
Bi-rotor claw-type high current pump of the present invention, comprise driving shaft and the driven shaft of parallel installation in motor, the pump housing and the pump housing, driving shaft is equipped with driving gear, the driven gear be meshed with driving gear is assemblied on driven shaft, driving shaft connects motor, and driving shaft, driven shaft install rotor, and rotor is arranged in the pump chamber of the pump housing, rotor adopts two pawl structure, and two pawls of rotor are centrosymmetric.
This bi-rotor claw-type high current pump utilizes a pair synchromesh gear by transmission of power on the rotor with two pawls, utilize the pawl of rotor and the fine clearance of pump chamber inwall to complete sealing (identical with traditional claw pump work principle), then compress in pump chamber from intakeport inspiration under the High Rotation Speed of rotor and discharge from relief opening.By rotor design is become two pawl structure, solve the problem of monodactyle rotor axial bias in traditional claw-type high current pump on the one hand, without the need to adopting multistage pump chamber, because this reducing the making of claw-type high current pump, assembling and maintenance difficulty, make the pump housing at high speed more steadily, mechanical property is more reliable, thus the working life of pump can be extended, breach the principle of double rotor monodactyle acting on the other hand, use the theory of synchronizing close two-way work doing cleverly, both reduce energy consumption, turn improve the working efficiency of claw-type high current pump.
Two air aspiration cavitys and two exhaust cavitys are had in the described pump housing, the dividing plate of pump chamber both sides is all arranged upper and lower two ventilating holes, upper vent is communicated with the exhaust cavity of pump chamber and the pump chamber left and right sides, lower ventilating hole is communicated with the air aspiration cavity of pump chamber and the pump chamber left and right sides, the pump housing is provided with two intakepories and two relief openings, and intakeport, relief opening communicate with air aspiration cavity, exhaust cavity respectively.Can double sucking double-row be realized by this structure, reduce the axial force to rotor, thus can working life of Extending Rotor.
At present; the rotor of the tradition pump housing is all directly be assemblied on axle; but because two rotors are driven by synchromesh gear; after two rotors, synchromesh gear have assembled; usually the untight problem of two rotor engagement can be there is; thus affect the working efficiency of pump, for addressing this problem, the present invention adopts following preferred version:
Driving shaft is installed between the rotor installed and driving shaft precision regulating the whole series.When two rotor engagement in assembly process are not tight, can adjust the relative position of two rotors by rotating precision regulating the whole series, after turning to correct position, precision regulating the whole series being fixed on driving shaft by fastening piece.
Except above-mentioned points, described motor adopts variable-frequency motor.Rotating speed can be adjusted according to demand change flow under the control of variable frequency power.
The beneficial effect that the present invention is compared with prior art had is:
1, rotor adopts two pawl structure, without the need to adopting multistage pump chamber, the problem of monodactyle rotor axial bias in traditional claw-type high current pump can be solved, enormously simplify pump body structure, be convenient to make, assembling and safeguarding, rational in infrastructure and pump housing smooth running at high speed can be ensured;
2, breach the principle of double rotor monodactyle acting, used the theory of synchronizing close two-way work doing cleverly, both reduced energy consumption, turn improved the working efficiency of claw-type high current pump;
3, the pump housing can realize double sucking double-row, reduces the axial force to rotor, extends rotor life;
4, by installing precision regulating the whole series between rotor and driving shaft, the validity of assembling can be reached, guarantee that two rotors closely cooperate, ensure the working efficiency of pump;
5, the breath that gas produces in flow process can form air film at rotor surface, this air film can be protected rotor, therefore without the need to lubricating rotor, it is a kind of dry pump of pure oil-free lubrication, both good dry pump effect had been reached, be convenient to again cleaning, only need add clean liquid can clean up in pump chamber, has and exempts to unpick and wash function;
6, under the use of vacuum pump, good sealing effect can be reached, without the need to medium-tight by flowing gas;
7, rotating speed can be adjusted according to demand change flow under the control of variable frequency power, applied widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of pump chamber.
In figure: 1, the pump housing; 2, driven gear; 3, relief opening; 4, exhaust cavity; 5, dividing plate; 6, ventilating hole; 7, rotor; 8, driven shaft; 9, driving shaft; 10, precision regulating is a whole set of; 11, air aspiration cavity; 12, intakeport; 13, driving gear; 14, pawl; 15, pump chamber.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As shown in Figure 1, 2, bi-rotor claw-type high current pump, comprise driving shaft 9 and the driven shaft 8 of parallel installation in motor, the pump housing 1 and the pump housing 1, driving shaft 9 is equipped with driving gear 13, the driven gear 2 be meshed with driving gear 13 is assemblied on driven shaft 8, and driving shaft 9 connects motor, driving shaft 9, driven shaft 8 install rotor 7, rotor 7 is arranged in the pump chamber 15 of the pump housing 1, and rotor 7 adopts two pawl structure, and two pawls 14 of rotor 7 are centrosymmetric.
Wherein, two air aspiration cavitys 11 and two exhaust cavitys 4 are had in the pump housing 1, the dividing plate 5 of pump chamber 15 both sides is all arranged upper and lower two ventilating holes 6, upper vent is communicated with the exhaust cavity 4 of pump chamber 15 and pump chamber 15 left and right sides, lower ventilating hole is communicated with the air aspiration cavity 11 of pump chamber 15 and pump chamber 15 left and right sides, the pump housing 1 is provided with two intakepories 12 and two relief openings 3, intakeport 12, relief opening 3 communicate with air aspiration cavity 11, exhaust cavity 4 respectively, achieve the double sucking double-row of the pump housing, reduce the axial force to rotor 7, extend rotor 7 life-span; Motor adopts variable-frequency motor; Driving shaft 9 between the rotor 7 installed and driving shaft 9 install precision regulating the whole series 10, ensure that the validity of assembling.
Working principle and process:
This bi-rotor claw-type high current pump utilizes a pair synchromesh gear by transmission of power to on the rotor 7 of two pawls, utilize the pawl 14 of rotor and the fine clearance of pump chamber 15 inwall to complete sealing (identical with traditional claw pump work principle), then compress in pump chamber 15 from intakeport 12 inspiration under the High Rotation Speed of rotor 7 and discharge from relief opening 3.Rotor 7 adopts two pawl structure, on the one hand without the need to adopting multistage pump chamber 15, the problem that in traditional claw-type high current pump, monodactyle rotor 7 is axially eccentric can be solved, enormously simplify the pump housing 1 structure, be convenient to make, assembling and safeguarding, rational in infrastructure and the pump housing 1 smooth running at high speed can be ensured, breach the principle of double rotor monodactyle acting on the other hand, use the theory of synchronizing close two-way work doing cleverly, both reduced energy consumption, turn improve the working efficiency of claw-type high current pump.
Except above-mentioned points, the breath that gas produces in flow process can form air film on rotor 7 surface, this air film can be protected rotor 7, therefore without the need to lubricating rotor 7, be a kind of dry pump of pure oil-free lubrication, both reached good dry pump effect, be convenient to again cleaning, only need add clean liquid can clean up in pump chamber 15, have and exempt to unpick and wash function; Under the use of vacuum pump, good sealing effect can be reached, without the need to medium-tight by flowing gas.
This bi-rotor claw-type high current pump can adjust rotating speed according to demand and change flow, also the change by pump chamber 15 and rotor 7 volume makes more series product, therefore can be widely used in the high pressure forced-ventilated of the industry such as aerospace industry, nuclear industry, chemical engineering industry, petroleum industry, pharmaceuticals industry, metallurgical industry, gas manufacture and conveying, strong suction, heat recovery, molecular distillation, oil plant conveying, clean aspects such as finding time, banburying vacuumizes, possess vacuum pump, novel oil pump, Novel air pump completely with pure dry type pump performance and field of employment.
Claims (3)
1. a bi-rotor claw-type high current pump, comprise motor, driving shaft (9) and the driven shaft (8) of parallel installation in the pump housing (1) and the pump housing (1), driving shaft (9) is equipped with driving gear (13), the driven gear (2) be meshed with driving gear (13) is assemblied on driven shaft (8), driving shaft (9) connects motor, driving shaft (9), driven shaft (8) is installed rotor (7), rotor (7) is arranged in the pump chamber (15) of the pump housing (1), it is characterized in that: rotor (7) adopts two pawl structure, two pawls (14) of rotor (7) are centrosymmetric, two air aspiration cavitys (11) and two exhaust cavitys (4) are had in the described pump housing (1), the dividing plate (5) of pump chamber (15) both sides is all arranged, lower two ventilating holes (6), upper vent is communicated with the exhaust cavity (4) of pump chamber (15) and pump chamber (15) left and right sides, lower ventilating hole is communicated with the air aspiration cavity (11) of pump chamber (15) and pump chamber (15) left and right sides, the pump housing (1) is provided with two intakepories (12) and two relief openings (3), intakeport (12), relief opening (3) respectively with air aspiration cavity (11), exhaust cavity (4) communicates.
2. bi-rotor claw-type high current pump according to claim 1, is characterized in that: between the rotor (7) and driving shaft (9) of the upper installation of driving shaft (9), install precision regulating the whole series (10).
3. bi-rotor claw-type high current pump according to claim 1, is characterized in that: described motor is variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210462042.8A CN102926995B (en) | 2012-11-15 | 2012-11-15 | Bi-rotor claw-type high current pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210462042.8A CN102926995B (en) | 2012-11-15 | 2012-11-15 | Bi-rotor claw-type high current pump |
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| Publication Number | Publication Date |
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| CN102926995A CN102926995A (en) | 2013-02-13 |
| CN102926995B true CN102926995B (en) | 2015-07-08 |
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| CN201210462042.8A Active CN102926995B (en) | 2012-11-15 | 2012-11-15 | Bi-rotor claw-type high current pump |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883357B (en) * | 2014-03-20 | 2016-04-13 | 泸州市长江液压件装备有限公司 | A kind of rotary sealing mechanism of gear shunting motor, gear shunting motor |
| CN110497146B (en) * | 2019-07-22 | 2020-11-06 | 西安交通大学 | Claw type pump rotor tool and claw type pump rotor installation process |
| CN114962253B (en) * | 2022-04-12 | 2024-09-20 | 宁波鲍斯能源装备股份有限公司 | Rotor and shaft mounting structure, claw pump and dismounting method |
| CN116538089A (en) * | 2023-06-08 | 2023-08-04 | 北京通嘉宏瑞科技有限公司 | Rotor structure and vacuum pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080030A (en) * | 1993-06-05 | 1993-12-29 | 北京市海淀区福斯曼咨询有限公司 | Jaw vacuum pump series |
| CN1312437A (en) * | 2001-04-26 | 2001-09-12 | 北京朗禾科技有限公司 | Dry vacuum pump |
| US7341042B1 (en) * | 2006-07-21 | 2008-03-11 | Liung Feng Industrial Co., Ltd. | Rotary positive displacement control system and apparatus |
| CN201730826U (en) * | 2009-09-30 | 2011-02-02 | 郜璋顺 | Axial double-action type liquid-ring vacuum pump |
| CN202326246U (en) * | 2011-11-11 | 2012-07-11 | 中国科学院沈阳科学仪器研制中心有限公司 | Roots and claw-type rotor combined multi-stage dry vacuum pump |
| CN202914313U (en) * | 2012-11-15 | 2013-05-01 | 淄博昊驰泵业有限公司 | Double-rotor claw-type strong-flow pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4430050A (en) * | 1982-01-25 | 1984-02-07 | Ingersoll-Rand Company | Rotary, positive-displacement machine |
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2012
- 2012-11-15 CN CN201210462042.8A patent/CN102926995B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080030A (en) * | 1993-06-05 | 1993-12-29 | 北京市海淀区福斯曼咨询有限公司 | Jaw vacuum pump series |
| CN1312437A (en) * | 2001-04-26 | 2001-09-12 | 北京朗禾科技有限公司 | Dry vacuum pump |
| US7341042B1 (en) * | 2006-07-21 | 2008-03-11 | Liung Feng Industrial Co., Ltd. | Rotary positive displacement control system and apparatus |
| CN201730826U (en) * | 2009-09-30 | 2011-02-02 | 郜璋顺 | Axial double-action type liquid-ring vacuum pump |
| CN202326246U (en) * | 2011-11-11 | 2012-07-11 | 中国科学院沈阳科学仪器研制中心有限公司 | Roots and claw-type rotor combined multi-stage dry vacuum pump |
| CN202914313U (en) * | 2012-11-15 | 2013-05-01 | 淄博昊驰泵业有限公司 | Double-rotor claw-type strong-flow pump |
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| CN102926995A (en) | 2013-02-13 |
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Effective date of registration: 20190425 Address after: 255200 Liangping Village, Shantou Town, Boshan District, Zibo City, Shandong Province Patentee after: Zibo Boshan Gear Plant Address before: 255200 Boshan Gear Factory, Zibo City, Shantou Town, Boshan District, Zibo City, Shandong Province Patentee before: Zibo Haochi Pump Industry Co., Ltd. |