CN202266431U - Rotor of vacuum pump - Google Patents
Rotor of vacuum pump Download PDFInfo
- Publication number
- CN202266431U CN202266431U CN2011203217765U CN201120321776U CN202266431U CN 202266431 U CN202266431 U CN 202266431U CN 2011203217765 U CN2011203217765 U CN 2011203217765U CN 201120321776 U CN201120321776 U CN 201120321776U CN 202266431 U CN202266431 U CN 202266431U
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- Prior art keywords
- rotor
- housing
- big footpath
- gear
- section
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Abstract
The utility model discloses a rotor of a vacuum pump, comprising a driving rotor, a driven rotor, a motor, a gear box, a first shell, a plurality of bearings, a second shell and an end cover, wherein the driving rotor is formed by combining a large-diameter segment and a small-diameter segment; the driven rotor is formed by combining a large-diameter segment and a small-diameter segment and mutually occluded with the driving rotor; the gear box is connected to the motor and is internally provided with a coupling, a first synchronous gear and a second synchronous gear; the first shell is connected to the gear box and internally provided with an exhaust hole; the bearings are connected to rotating shafts of the driving rotor and the driven rotor; the second shell is provided with an air inlet and a plurality of bearings connected to the rotating shafts of the driving rotor and the driven rotor, wherein the caliber of the second shell is larger than that of the first shell so that the large-diameter segment of the driving gear and the large-diameter segment of the driven gear can be contained in the inside space of the second shell; and the end cover is connected to the opposite side of a connection side of the second shell and the first shell.
Description
Technical field
The utility model relates to a kind of vacuum pump rotor, refers to a kind of vacuum pump rotor that can reduce the mechanical work loss especially.
Background technique
Vacuum pump is applied to making the environment of vacuum; Its mode of action is at a suction port air to be imported, and utilizes inner helical rotor that the low-pressure gas of this suction port is compressed to the relief opening of high voltage terminal, to produce the state of vacuum; So the quality and the rotor of vacuum manufacturing effect have confidential relation; So rotor also is called as the heart of vacuum pump, except influencing the usefulness of vacuum pump, also can influence its working life and cost.
Generally in the middle of existing technology, the use of vacuum pump has following 2 shortcomings:
1. can know according to gas load equation F=AP that if under the pressure situation about equally of exhaust end, the sectional area of rotor compression is identical again, then the spent mechanical energy of rotor is then kept constantly, causes the consumption of the power cost or the energy.
2. if rotor diameter is kept under the identical situation with pitch, because of delivery space does not change, then rotor can't further produce compression.
In view of this, the designer of the utility model is according to the experience accumulation of research for many years, and the intention of self and constantly attempting down of arranging in pairs or groups, and then develops a kind of vacuum pump rotor that can effectively improve defective mentioned in the above-mentioned existing technology.
The model utility content
First purpose of the utility model is to provide a kind of vacuum pump rotor, through being two sections with rotor design; Utilize the rotor of the big external diameter of tool at the low pressure place; And the operation that utilizes the rotor of the less external diameter of tool to vacuumize at the high pressure place can be known according to gas load equation F=PA, following when the identical situation of pressure; Active force is directly proportional with the size of section area; So the utility model utilization reduces the section area of rotor back segment, reduces gas load, further lowers the consumption of mechanical energy and the waste of the energy.
Second purpose of the utility model through the variation of pitch and external diameter, and then makes rotor in the process of running, further produce compression effects, reaches purpose of energy saving.
The improvement of this vacuum pump rotor is following: a kind of vacuum pump rotor comprises:
One power rotor is combined by a big footpath section and a path section, and should big footpath section have a space with this path is intersegmental, and the external diameter of big footpath section and pitch are greater than the path section;
One driven rotor with the power rotor setting that cooperatively interacts, and is combined by a big footpath section and a path section, and this big footpath section and this path are intersegmental to have a space, and the external diameter in big footpath section and pitch are greater than the path section;
One motor;
One gear-box is connected in this motor, and this gear-box inside has more:
One coupling is connected in motor from gear-box inside;
One first synchromesh gear, the one of which end is connected in this coupling, and its other end then is connected in the rotating shaft of this path section of power rotor; And
One second synchromesh gear with the mutual interlock of this first synchromesh gear, and is connected in the rotating shaft of this path section of driven rotor;
One first housing is connected in gear-box, and this first enclosure interior has:
One exhaust port is arranged on first housing; And
A plurality of bearings are connected in the rotating shaft of power rotor and driven rotor;
One second housing; Have a suction port and a plurality of bearing, these a plurality of bearings are connected on the pivot of power rotor and driven rotor, wherein; This second housing bore is greater than first housing, make that its inner space can ccontaining power rotor should big footpath section and driven rotor should big footpath section; And
One end cap is connected in the opposite side that second housing is connected with first housing.
Further, also be provided with on this first housing one be used for the cooled interior element the housing water jacket.
Further, wherein, the rotation of this motor drives coupling, first synchromesh gear, power rotor, second synchromesh gear and driven rotor run-in synchronism together.
Another embodiment of the utility model is following: a kind of vacuum pump rotor comprises:
One power rotor is combined by a big footpath section and a path section, and should big footpath section have a space with this path is intersegmental, and the external diameter of big footpath section and pitch are greater than the path section;
One driven rotor with the power rotor setting that cooperatively interacts, and is combined by a big footpath section and a path section, and big footpath section has a space with path is intersegmental, and the external diameter of big footpath section and pitch are greater than the path section;
One motor;
One gear-box is connected in this motor, and this gear-box inside has more:
One coupling is connected in motor from gear-box inside;
One first synchromesh gear, the one of which end is connected in this coupling, and its other end then is connected in the rotating shaft of this path section of power rotor; And
One second synchromesh gear with the mutual interlock of this first synchromesh gear, and is connected in the rotating shaft of this path section of driven rotor;
One end plate is connected in gear-box, and its inside has:
One end plate water jacket is arranged on the end plate, is used for the cooled interior element;
One relief opening is formed on the end plate; And
A plurality of bearings are connected in the rotating shaft of power rotor and driven rotor;
One first housing is connected in end plate, and its inside is equipped with this path section of this power rotor and this path section of this driven rotor, and this first housing also has a housing water jacket, and wherein, this housing water jacket is connected in this end plate water jacket through a passage;
One second housing; Be connected in first housing, wherein, this second housing bore is greater than first housing; Its inner space can ccontaining power rotor should big footpath section and driven rotor should big footpath section, and have more a suction port and a plurality of bearing that is connected in power rotor and driven rotor; And
One end cap is connected in the opposite side that second housing is connected with first housing.
Further, wherein, also be provided with a housing water jacket on this first housing, this housing water jacket is connected through a passage with this end plate water jacket, by cooling liquid the flowing of inside, with the cooled interior element.
Further, wherein, the rotation of this motor drives coupling, first synchromesh gear and power rotor run-in synchronism together, and second synchromesh gear and driven rotor be running relatively then.
Compared with prior art, the utlity model has following advantage:
1. the rotor design that vacuum pump is inner is the form with various outer diameter; Under the identical situation of exhaust end pressure; According to gas load equation F=PA, make little external diameter rotor-end because of reduced cross-sectional area and then gas load is lowered, thus; Can reduce the mechanical function loss of rotor when rotating, and then the consumption that can save the energy.
2. pass through the variation of rotor pitch and external diameter, and then make rotor further produce compression effects, reach purpose of energy saving.
3. this vacuum pump case design mode that is two sections or three sections combinations can be dismantled wherein any one section separately, make maintenance, maintenance or the dismounting combination operation when changing more convenient.
Description of drawings
Fig. 1 is one first a preferred embodiment structural representation of a kind of vacuum pump rotor of the utility model;
Fig. 2 is one second a preferred embodiment structural representation of the vacuum pump rotor of the utility model.
[primary component symbol description]
1: power rotor
11: the path section
12: big footpath section
2: driven rotor
21: the path section
22: big footpath section
3: motor
4: gear-box
41: coupling
42: the first synchromesh gears
43: the second synchromesh gears
5: the first housings
51: relief opening
52: the housing water jacket
53: bearing
6: the second housings
61: suction port
62: bearing
7: end cap
8: end plate
81: the end plate water jacket
82: exhaust port
83: bearing
84: passage
Embodiment
A kind of vacuum pump rotor that is proposed in order more clearly to describe the utility model below will cooperate graphicly, elaborate the preferred embodiment of the utility model.
Please consult Fig. 1 simultaneously; One first preferred embodiment structural representation for a kind of vacuum pump rotor of the utility model comprises: a power rotor 1 is combined by big footpath section 12 and one a path section 11; And should big footpath section 12 and 11 of path sections have a space; In order to the usefulness of processing, and by big footpath external diameter and the pitch of section 12 produces compression effects greater than path section 11 in the time of can making this power rotor 1 running; One driven rotor 2; Combined by big footpath section 22 and one a path section 21, this big footpath section 22 and 21 of path sections have a space, in order to the usefulness of processing; And the external diameter of section 22 and pitch produce compression effects greater than path section 21 in the time of can making these driven rotor 2 runnings by big footpath; One motor 3;
One gear-box 4 is connected in this motor 3, and these gear-box 4 inside have more: a coupling 41 is connected in motor 3 from gear-box 4 inside; One first synchromesh gear 42, one of which end are connected in this coupling 41, and its other end then is connected in the rotating shaft of this path section 11 of this power rotor 1; One second synchromesh gear 43 with these first synchromesh gear, 42 mutual interlocks, and is connected in the rotating shaft of this path section 21 of driven rotor 2; Wherein, When motor 3 runnings; Coupling 41, first synchromesh gear 42, power rotor 1, second synchromesh gear 43 and driven rotor 2 rotation synchronously together; And has the lubricant oil (not shown) in gear-box 4 inside, to be used for lubricating bearings 53, first synchromesh gear 42 and second synchromesh gear 43;
One first housing 5 is connected in gear-box 4, and has: an exhaust port 51 is arranged on first housing 5; One housing water jacket 52 also is arranged on first housing 5, wherein, because rotor can generate heat in the running, so utilize the radiator liquid that circulates in this housing water jacket 52 that rotor is dispelled the heat; And a plurality of bearings 53, be connected in the rotating shaft of power rotor 1 and driven rotor 2, to assist support rotor;
One second housing 6 is connected in first housing 5, and wherein, these second housing, 6 bores are greater than first housing 5, make that its inner space can ccontaining power rotor 1 should big footpath section 12 and driven rotor 2 should big footpath section 22, and have more a suction port 61; And an end cap 7, be connected in the opposite side that second housing 6 is connected with first housing 5.
As stated, the element annexation of this first preferred embodiment has been done a detailed description, below will further specify the details of vacuum pump running; The volumes (not shown) that this suction port 61 is can external one to be vacuumized can suck gas in the vacuum pump from suction port 61 during the vacuum pump running, and is delivered to relief opening 51 and accomplishes vacuum operations; And because the exhaust section of vacuum pump is in identical pressure, at this moment, according to gas load equation F=PA; The utility model in order to lower the consumption of mechanical energy, and is that the less form of external diameter is to reduce sectional area with the rotor design here under the situation of uniform pressure; Sectional area diminishes then that active force also can diminish, and then just can reduce the consumption of the energy, saves the consumption of the energy; In addition; By the variation of pitch and external diameter, can make rotor get gas and when being delivered to relief opening 51, do compression further from the inlet end suction, reach purpose of energy saving.
Please continue to consult Fig. 2, be one second preferred embodiment structural representation of the vacuum pump rotor of the utility model, wherein different with this first embodiment places are; First embodiment makes up with one first housing 5 and one second housing 6 mode with two segment elements, and this second embodiment then is that the mode with three segment elements makes up, in order to dismounting combination operation in the future; As shown in the figure; Vacuum pump rotor comprises: a power rotor 1 is combined by big footpath section 12 and one a path section 11; And big footpath section 12 and 11 of path sections have a space, in order to the usefulness of processing; One driven rotor 2 combines with big footpath section 22 and one a path section 21, and big footpath section 12 and 11 of path sections have a space, in order to the usefulness of processing, and with the setting that cooperatively interacts of this power rotor; One motor 3; One gear-box 4 is connected in this motor 3, and these gear-box 4 inside have more: a coupling 41 is connected in motor 3 from gear-box 4 inside; One first synchromesh gear 42, one of which end are connected in this coupling 41, and its other end then is connected in the rotating shaft of this path section 11 of power rotor 1; And one second synchromesh gear 43, with these first synchromesh gear, 42 mutual interlocks, and be connected in the rotating shaft of this path section 21 of driven rotor 2;
One end plate 8 is connected in gear-box 4, and its inside has: an end plate water jacket 81, be arranged on the end plate 8, and circulation has a cooling liquid (not shown) in it, dispels the heat with the inner member of assisting end plate 8; One relief opening 82 is formed on the end plate 8; And a plurality of bearings 83, be connected on the pivot of power rotor 1 and driven rotor 2, to assist support rotor;
One first housing 5 is connected in end plate 8, and its inside has: the exhaust port 51 and that this path section 21, one of this path section 11 of power rotor 1, driven rotor 2 is arranged on first housing 5 also is arranged at the housing water jacket 52 on first housing 5; Wherein, When motor 3 running, coupling 41, first synchromesh gear 42, power rotor 1, second synchromesh gear 43 and 2 of driven rotors can rotate together synchronously, in addition; Because rotor can generate heat in the running; So utilize in this housing water jacket 52 circulation one radiator liquid that rotor is dispelled the heat, and housing water jacket 52 is connected with a passage 84 with end plate water jacket 81, and radiator liquid is circulated in wherein; And a plurality of bearings 83, be connected in the rotating shaft of power rotor 1 and driven rotor 2, to assist support rotor; One second housing 6; Be connected in first housing 5; Wherein, This second housing, 6 bores system is greater than first housing 5, make that its inner space can ccontaining power rotor 1 should big footpath section 12 and driven rotor 2 should big footpath section 22, and have a suction port 61 and a plurality of bearing 62 that is used to support and be connected in power rotor 1 and driven rotor 2; And an end cap 7, be connected in the opposite side that second housing 6 is connected with first housing 5.Except structural difference, this second embodiment and first embodiment work procedure that turns round is identical, does not give unnecessary details so do not do again.
Above embodiment is merely the exemplary embodiment of the utility model, is not used in restriction the utility model, and the protection domain of the utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in the essence and protection domain of the utility model, this modification or be equal to replacement and also should be regarded as dropping in the protection domain of the utility model.
Claims (6)
1. a vacuum pump rotor is characterized in that, comprising:
One power rotor is combined by a big footpath section and a path section, and should big footpath section have a space with this path is intersegmental, and the external diameter of big footpath section and pitch are greater than the path section;
One driven rotor with the power rotor setting that cooperatively interacts, and is combined by a big footpath section and a path section, and this big footpath section and this path are intersegmental to have a space, and the external diameter in big footpath section and pitch are greater than the path section;
One motor;
One gear-box is connected in this motor, and this gear-box inside has more:
One coupling is connected in motor from gear-box inside;
One first synchromesh gear, the one of which end is connected in this coupling, and its other end then is connected in the rotating shaft of this path section of power rotor; And
One second synchromesh gear with the mutual interlock of this first synchromesh gear, and is connected in the rotating shaft of this path section of driven rotor;
One first housing is connected in gear-box, and this first enclosure interior has:
One exhaust port is arranged on first housing; And
A plurality of bearings are connected in the rotating shaft of power rotor and driven rotor;
One second housing; Have a suction port and a plurality of bearing, these a plurality of bearings are connected on the pivot of power rotor and driven rotor, wherein; This second housing bore is greater than first housing, make that its inner space can ccontaining power rotor should big footpath section and driven rotor should big footpath section; And
One end cap is connected in the opposite side that second housing is connected with first housing.
2. vacuum pump rotor according to claim 1 is characterized in that, also be provided with on this first housing one be used for the cooled interior element the housing water jacket.
3. vacuum pump rotor according to claim 1 is characterized in that, wherein, the rotation of this motor drives coupling, first synchromesh gear, power rotor, second synchromesh gear and driven rotor run-in synchronism together.
4. a vacuum pump rotor is characterized in that, comprising:
One power rotor is combined by a big footpath section and a path section, and should big footpath section have a space with this path is intersegmental, and the external diameter of big footpath section and pitch are greater than the path section;
One driven rotor with the power rotor setting that cooperatively interacts, and is combined by a big footpath section and a path section, and big footpath section has a space with path is intersegmental, and the external diameter of big footpath section and pitch are greater than the path section;
One motor;
One gear-box is connected in this motor, and this gear-box inside has more:
One coupling is connected in motor from gear-box inside;
One first synchromesh gear, the one of which end is connected in this coupling, and its other end then is connected in the rotating shaft of this path section of power rotor; And
One second synchromesh gear with the mutual interlock of this first synchromesh gear, and is connected in the rotating shaft of this path section of driven rotor;
One end plate is connected in gear-box, and its inside has:
One end plate water jacket is arranged on the end plate, is used for the cooled interior element;
One relief opening is formed on the end plate; And
A plurality of bearings are connected in the rotating shaft of power rotor and driven rotor;
One first housing is connected in end plate, and its inside is equipped with this path section of this power rotor and this path section of this driven rotor, and this first housing also has a housing water jacket, and wherein, this housing water jacket is connected in this end plate water jacket through a passage;
One second housing; Be connected in first housing, wherein, this second housing bore is greater than first housing; Its inner space can ccontaining power rotor should big footpath section and driven rotor should big footpath section, and have more a suction port and a plurality of bearing that is connected in power rotor and driven rotor; And
One end cap is connected in the opposite side that second housing is connected with first housing.
5. vacuum pump rotor according to claim 4 is characterized in that, wherein, also is provided with a housing water jacket on this first housing, and this housing water jacket is connected through a passage with this end plate water jacket, by cooling liquid the flowing of inside, with the cooled interior element.
6. vacuum pump rotor according to claim 4 is characterized in that, wherein, the rotation of this motor drives coupling, first synchromesh gear and power rotor run-in synchronism together, and second synchromesh gear and driven rotor be running relatively then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203217765U CN202266431U (en) | 2011-08-30 | 2011-08-30 | Rotor of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203217765U CN202266431U (en) | 2011-08-30 | 2011-08-30 | Rotor of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266431U true CN202266431U (en) | 2012-06-06 |
Family
ID=46157229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203217765U Expired - Fee Related CN202266431U (en) | 2011-08-30 | 2011-08-30 | Rotor of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266431U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982428A (en) * | 2013-02-07 | 2014-08-13 | 汉钟精机股份有限公司 | Double-section helical lead vacuum pump |
| CN109441814A (en) * | 2018-12-29 | 2019-03-08 | 无锡五洋赛德压缩机有限公司 | Novel screw compressor |
| CN109458332A (en) * | 2018-12-29 | 2019-03-12 | 无锡五洋赛德压缩机有限公司 | Noise reduction helical-lobe compressor |
| CN110714920A (en) * | 2019-09-20 | 2020-01-21 | 胡涛 | Double-screw air compressor |
| CN111577602A (en) * | 2020-04-30 | 2020-08-25 | 江苏省同远节能科技有限公司 | Energy-saving and environment-friendly screw air compressor and working method thereof |
-
2011
- 2011-08-30 CN CN2011203217765U patent/CN202266431U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982428A (en) * | 2013-02-07 | 2014-08-13 | 汉钟精机股份有限公司 | Double-section helical lead vacuum pump |
| CN109441814A (en) * | 2018-12-29 | 2019-03-08 | 无锡五洋赛德压缩机有限公司 | Novel screw compressor |
| CN109458332A (en) * | 2018-12-29 | 2019-03-12 | 无锡五洋赛德压缩机有限公司 | Noise reduction helical-lobe compressor |
| CN110714920A (en) * | 2019-09-20 | 2020-01-21 | 胡涛 | Double-screw air compressor |
| CN111577602A (en) * | 2020-04-30 | 2020-08-25 | 江苏省同远节能科技有限公司 | Energy-saving and environment-friendly screw air compressor and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20140830 |
|
| EXPY | Termination of patent right or utility model |