CN107143497A - A kind of vacuum pump - Google Patents
A kind of vacuum pump Download PDFInfo
- Publication number
- CN107143497A CN107143497A CN201710513130.9A CN201710513130A CN107143497A CN 107143497 A CN107143497 A CN 107143497A CN 201710513130 A CN201710513130 A CN 201710513130A CN 107143497 A CN107143497 A CN 107143497A
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- pump case
- sealing ring
- rotor
- sleeve
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of vacuum pump, including body, the body includes vacuum pump case and rotor, the vacuum pump case side end surface is provided with mounting hole, the vacuum pump case side is provided with drive end bearing bracket, and the first sealing ring and the second sealing ring are provided between the drive end bearing bracket and the vacuum pump case, and first sealing ring is located at the side of second sealing ring, sleeve is provided between first sealing ring and second sealing ring, the beneficial effect that the present invention is reached is：Vavuum pump internal gas transmission path is short, is not likely to produce reactant precipitation；Rotor is provided with male rotor and female rotor, and male rotor and female rotor intermeshing reach airtight effect, and simple in construction, fault rate is low, easy to maintenance；By setting the first sealing ring and the second sealing ring so that vavuum pump enclosure interior air-tightness is good, it is evacuated better；By setting cooler and coolant circulation groove, the high temperature produced in rotor rotation process can be quickly reduced, safety in utilization is improved.
Description
Technical field
The present invention relates to a kind of vacuum pump, belong to vacuum pump technology field.
Background technology
Many kinds are had been developed in the development applied with vacuum, the species of vavuum pump, and its pumping speed is raised to from zero point per second is several
Hundreds of thousands per second, millions of liters.As vacuum technique is applied to the requirement of pressure range in production and field of scientific study
It is more and more wider, mostly need by several vacuum pump groups be evacuated jointly into vacuum-pumping system after could meet produce and scientific research
The requirement of process, because vacuum is very wide using the scope of the operating pressure involved by department, therefore the vacuum of any type
Pump is impossible to be completely suitable for all working pressure ranges, can only be according to different working pressure ranges and different work
It is required that, use different types of vavuum pump.The need for for easy to use and various vacuum technology processes, sometimes by various vacuum
Pump combines by its performance requirement, with unit pattern application.Exhaust line path length when traditional vavuum pump is used, reactant precipitation
More and vavuum pump general using air-tightness, while traditional vavuum pump easily produce inside vavuum pump when in use it is larger
Heat, once misoperation, has larger potential safety hazard, therefore, in order to solve above-mentioned problem, the present invention proposes one
Plant vacuum pump.
The content of the invention
The present invention provides a kind of vacuum pump, and vavuum pump internal gas transmission path is short, is not likely to produce reactant precipitation；
Rotor is provided with male rotor and female rotor, and male rotor and female rotor intermeshing reach airtight effect, and simple in construction, fault rate is low,
It is easy to maintenance；By setting the first sealing ring and the second sealing ring so that vavuum pump enclosure interior air-tightness is good, pumping effect is more
It is good；By setting cooler and coolant circulation groove, the high temperature produced in rotor rotation process can be quickly reduced, improving makes
Use security.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
A kind of vacuum pump of the present invention, including body, the body include vacuum pump case and rotor, the vacuum pump case
Side end surface is provided with mounting hole, and the vacuum pump case side is provided with drive end bearing bracket, the drive end bearing bracket and the vacuum pump case it
Between be provided with the first sealing ring and the second sealing ring, first sealing ring be located at second sealing ring side, described first
Sleeve is provided between sealing ring and second sealing ring, the vacuum pump case opposite side is provided with bonnet, the bonnet and institute
State and the sleeve is provided between vacuum pump case, pad is provided between the bonnet and the sleeve, the rotor is arranged on true
Inside empty pump case, the rotor side is provided with power transmission shaft, and the rotor includes male rotor and female rotor, the male rotor with
The female rotor intermeshing, the male rotor is respectively mounted on the mounting shaft with the female rotor, and described installation axle one end is pacified
Equipped with synchromesh gear, the vavuum pump case top is provided with top cover, and the top cover side is provided with cooling water water filling port, described true
Empty pump case inner tip is provided with cooler, and the cooler is connected with the cooling water water filling port, in the vacuum pump case
Portion middle part is connected provided with coolant circulation groove, the cooler with coolant circulation groove.
As a preferred technical solution of the present invention, the vacuum pump case side is connected with motor, the motor
Output end is connected with the power transmission shaft in the vacuum pump case.
As a preferred technical solution of the present invention, the vavuum pump enclosure interior top is provided with oil pocket and water cavity, institute
State the side that oil pocket is located at the water cavity.
As a preferred technical solution of the present invention, the coolant circulation groove wraps up the vavuum pump enclosure interior institute
State the mounting groove of rotor.
As a preferred technical solution of the present invention, first sealing ring, second sealing ring and the pad
Middle part is equipped with inside through hole, and sleeve insertion through hole.
As a preferred technical solution of the present invention, the vavuum pump housing bottom is welded with fixing leg, described true
Empty pump case is fixedly connected by the fixing leg with the external world.
The beneficial effect that is reached of the present invention is：A kind of vacuum pump of the present invention, vavuum pump internal gas transmission path
It is short, it is not likely to produce reactant precipitation；Rotor is provided with male rotor and female rotor, and male rotor and female rotor intermeshing reach airtight effect
Really, simple in construction, fault rate is low, easy to maintenance；By setting the first sealing ring and the second sealing ring so that in vacuum pump case
Portion's air-tightness is good, is evacuated better；By setting cooler and coolant circulation groove, rotor rotation process can be quickly reduced
The high temperature of middle generation, improves safety in utilization.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is rotor mounting structure schematic diagram of the present invention；
Fig. 3 is cooler of the present invention, the structural representation of coolant circulation groove.
In figure：1- bodies, 2- vacuum pump case, 3- rotors, 4- drive end bearing brackets, 5- bonnets, 6- top covers, 7- mounting holes, 8-
One sealing ring, the sealing rings of 9- second, 10- sleeves, 11- pads, 12- fixing legs, 13- male rotors, 14- female rotors, 15- transmissions
Axle, 16- installation axles, 17- synchromesh gears, 18- oil pockets, 19- water cavities, 20- motors, 21- cooling waters water filling port, 22- coolers,
23- coolants circulation groove.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment
As Figure 1-3, a kind of vacuum pump of the invention, including body 1, body 1 includes vacuum pump case 2 and turned
Son 3, the side end surface of vacuum pump case 2 is provided with mounting hole 7, and the side of vacuum pump case 2 is provided with drive end bearing bracket 4, drive end bearing bracket 4 and vacuum
The first sealing ring 8 and the second sealing ring 9 are provided between pump case 2, the first sealing ring 8 is located at the side of the second sealing ring 9, the
Sleeve 10 is provided between one sealing ring 8 and the second sealing ring 9, the opposite side of vacuum pump case 2 is provided with bonnet 5, bonnet 5 and vacuum
Sleeve 10 is provided between pump case 2, pad 11 is provided between bonnet 5 and sleeve 10, rotor 3 is arranged in vacuum pump case 2
Portion, the side of rotor 3 is provided with power transmission shaft 15, and rotor 3 includes male rotor 13 and female rotor 14, male rotor 13 and the phase of female rotor 14
Mutually engagement, male rotor 13 is installed in installation axle 16 with female rotor 14, and the one end of installation axle 16 is provided with synchromesh gear 17,
The top of vacuum pump case 2 is provided with top cover 6, and the side of top cover 6 is provided with cooling water water filling port 21, and the inner tip of vacuum pump case 2 is set
There is cooler 22, cooler 22 is connected with cooling water water filling port 21, the bosom position of vacuum pump case 2 is provided with coolant stream
Turn trough 23, cooler 22 is connected with coolant circulation groove 23.
Further, the side of vacuum pump case 2 is connected with motor 20, and the output end of motor 20 in vacuum pump case 2 with passing
Moving axis 15 is connected.
Further, the inner tip of vacuum pump case 2 is provided with oil pocket 18 and water cavity 19, and oil pocket 18 is located at the one of water cavity 19
Side.
Further, the mounting groove of the inner rotator 3 of coolant circulation groove 23 parcel vacuum pump case 2, by coolant
Circulate the implantation coolant of groove 23, can be with fast cooling.
Further, the first sealing ring 8, the second sealing ring 9 and the middle part of pad 11 are equipped with through hole, and the insertion of sleeve 10 is logical
Inside hole, air-tightness is good, is evacuated block.
Further, the bottom of vacuum pump case 2 is welded with fixing leg 12, vacuum pump case 2 by fixing leg 12 with
The external world is fixedly connected.
Specifically, the present invention in use, start motor 20 first, motor 20 drives 15 turns of 2 intermediate solid drive shaft of vacuum pump case
It is dynamic, and then male rotor 13 and female rotor 14 are rotated in rotor driven 3 so that body 1 carry out air-breathing, in the process of air-breathing
In, due to male rotor 13 and the engagement rotation of female rotor 14 so that the content of vacuum pump case 2 is also easy to produce larger heat, now cold
But device 22 can quickly reduce the high temperature of the generation of vacuum pump case 2, improving makes by condensed water feeding coolant circulation groove 23
With security, and the internal gas transmission path of vacuum pump case 2 is short, is not likely to produce reactant precipitation；3 rotors are provided with male rotor 13
With female rotor 14, male rotor 13 and the intermeshing of female rotor 14 reach airtight effect, and simple in construction, fault rate is low, easy to maintenance.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (6)
1. a kind of vacuum pump, including body（1）, it is characterised in that：The body（1）Including vacuum pump case（2）With turn
Son（3）, the vacuum pump case（2）Side end surface is provided with mounting hole（7）, the vacuum pump case（2）Side is provided with drive end bearing bracket
（4）, the drive end bearing bracket（4）With the vacuum pump case（2）Between be provided with the first sealing ring（8）With the second sealing ring（9）, it is described
First sealing ring（8）Positioned at second sealing ring（9）Side, first sealing ring（8）With second sealing ring（9）
Between be provided with sleeve（10）, the vacuum pump case（2）Opposite side is provided with bonnet（5）, the bonnet（5）With the vacuum pump case
Body（2）Between be provided with the sleeve（10）, the bonnet（5）With the sleeve（10）Between be provided with pad（11）, the rotor
（3）Installed in vacuum pump case（2）Inside, the rotor（3）Side is provided with power transmission shaft（15）, the rotor（3）Including sun
Rotor（13）And female rotor（14）, the male rotor（13）With the female rotor（14）Intermeshing, the male rotor（13）With
The female rotor（14）It is installed in installation axle（16）On, and the installation axle（16）One end is provided with synchromesh gear（17）, institute
State vacuum pump case（2）Top is provided with top cover（6）, the top cover（6）Side is provided with cooling water water filling port（21）, the vacuum
Pump case（2）Inner tip is provided with cooler（22）, the cooler（22）With the cooling water water filling port（21）Connection, it is described
Vacuum pump case（2）Bosom position is provided with coolant circulation groove（23）, the cooler（22）Circulated with the coolant
Groove（23）Connection.
2. a kind of vacuum pump according to claim 1, it is characterised in that：The vacuum pump case（2）Side is connected
There is motor（20）, the motor（20）Output end and the vacuum pump case（2）The interior power transmission shaft（15）Connection.
3. a kind of vacuum pump according to claim 1, it is characterised in that：The vacuum pump case（2）Inner tip
Provided with oil pocket（18）And water cavity（19）, the oil pocket（18）Positioned at the water cavity（19）Side.
4. a kind of vacuum pump according to claim 1, it is characterised in that：The coolant circulation groove（23）Parcel institute
State vacuum pump case（2）The internal rotor（3）Mounting groove.
5. a kind of vacuum pump according to claim 1, it is characterised in that：First sealing ring（8）, described second
Sealing ring（9）With the pad（11）Middle part is equipped with through hole, and the sleeve（10）Insert inside through hole.
6. a kind of vacuum pump according to claim 1, it is characterised in that：The vacuum pump case（2）Weld bottom
There is fixing leg（12）, the vacuum pump case（2）Pass through the fixing leg（12）It is fixedly connected with the external world.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513130.9A CN107143497A (en) | 2017-06-29 | 2017-06-29 | A kind of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513130.9A CN107143497A (en) | 2017-06-29 | 2017-06-29 | A kind of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107143497A true CN107143497A (en) | 2017-09-08 |
Family
ID=59784401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710513130.9A Pending CN107143497A (en) | 2017-06-29 | 2017-06-29 | A kind of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107143497A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030077182A1 (en) * | 2001-10-24 | 2003-04-24 | Aisin Seiki Kabushiki Kaisha | Multi-stage vacuum pump |
| CN202250859U (en) * | 2011-09-28 | 2012-05-30 | 上海齐耀螺杆机械有限公司 | Coke-oven gas screw compressor unit |
| CN203420893U (en) * | 2013-08-06 | 2014-02-05 | 浙江摩泰螺杆真空泵有限公司 | Centralized cooling system for vacuum pump |
| CN104373348A (en) * | 2014-06-13 | 2015-02-25 | 扬州日上真空设备有限公司 | Novel double-screw vacuum pump |
| CN205478334U (en) * | 2016-02-02 | 2016-08-17 | 常州市华东真空泵厂 | Liquid cooling type roots vacuum pump |
| CN106837800A (en) * | 2017-02-21 | 2017-06-13 | 东北大学 | A kind of screw vacuum pump with interior circulation cooling system |
-
2017
- 2017-06-29 CN CN201710513130.9A patent/CN107143497A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030077182A1 (en) * | 2001-10-24 | 2003-04-24 | Aisin Seiki Kabushiki Kaisha | Multi-stage vacuum pump |
| CN202250859U (en) * | 2011-09-28 | 2012-05-30 | 上海齐耀螺杆机械有限公司 | Coke-oven gas screw compressor unit |
| CN203420893U (en) * | 2013-08-06 | 2014-02-05 | 浙江摩泰螺杆真空泵有限公司 | Centralized cooling system for vacuum pump |
| CN104373348A (en) * | 2014-06-13 | 2015-02-25 | 扬州日上真空设备有限公司 | Novel double-screw vacuum pump |
| CN205478334U (en) * | 2016-02-02 | 2016-08-17 | 常州市华东真空泵厂 | Liquid cooling type roots vacuum pump |
| CN106837800A (en) * | 2017-02-21 | 2017-06-13 | 东北大学 | A kind of screw vacuum pump with interior circulation cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170908 |
|
| RJ01 | Rejection of invention patent application after publication |