CN202108731U - Internal cooling vacuum pump - Google Patents
Internal cooling vacuum pump Download PDFInfo
- Publication number
- CN202108731U CN202108731U CN2011201604091U CN201120160409U CN202108731U CN 202108731 U CN202108731 U CN 202108731U CN 2011201604091 U CN2011201604091 U CN 2011201604091U CN 201120160409 U CN201120160409 U CN 201120160409U CN 202108731 U CN202108731 U CN 202108731U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- vacuum pump
- inlet opening
- main body
- shaft main
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides an internal cooling vacuum pump, which belongs to the technical field of the pump. The utility model solves the problem about internal radiation of the vacuum pump. The internal cooling vacuum pump comprises a shell, at least one rotor arranged in the shell, rotating shafts corresponding to the rotors in quantity and penetrating the rotors, and a drive motor connected with the rotating shafts and providing power to the rotating shafts; the rotating shaft is provided with a positioning chamber extending axially, a first inlet hole which communicates the positioning chamber with the environment and a first outlet hole which communicates the positioning chamber with the environment. The internal cooling vacuum pump not only has simple structure but also has good radiation effect, thereby prolonging the service life of the vacuum pump.
Description
Technical field
The utility model belongs to the pump technical field, relates to a kind of vacuum pump, particularly a kind of inner-cooled vacuum pump.
Background technique
The cooling mechanism of conventional vacuum pump all is located at the periphery of body; Central authorities are far away apart from vacuum pump, because the effect of cooling mechanism, the body of touching up vacuum pump is cool; But the temperature in the vacuum pump is just unknown, does not but play effect to really needing the parts of cooling in the vacuum pump.Thereby the rotating shaft in the vacuum pump need run up and can produce higher temperature; The rotor of vacuum pump may block because of thermal expansion, directly influences vacuum pump work, more directly influences the life-span of vacuum pump.Therefore, thus the life-span that reaches protection vacuum pump self and prolong vacuum pump through cooling to vacuum pump inside become problem demanding prompt solution.
Summary of the invention
There are the problems referred to above in the purpose of the utility model to existing technology, and a kind of inner-cooled vacuum pump of simple in structure and good heat dissipation effect is provided.
The purpose of the utility model can realize through following technical proposal: a kind of inner-cooled vacuum pump; Comprise a shell, at least one be located at rotor in the said shell, corresponding with the quantity of said rotor and run through said rotor rotating shaft, and one be connected with said rotating shaft and provide the drive motor of power to said rotating shaft, said rotating shaft to be provided with an axially extended holding cavity, and be communicated with first exit orifice that said holding cavity and extraneous first inlet opening and are communicated with the said holding cavity and the external world.
This inner-cooled vacuum pump is through being provided with holding cavity in said rotating shaft, and is provided with first inlet opening and first exit orifice in said rotating shaft; The said rotating shaft of said drive motor drives is rotated, thereby makes said rotor rotate around said rotating shaft; Meanwhile, the input cooling liquid will be had the cooling liquid output of heat again by first exit orifice to said holding cavity from first inlet opening.
In above-mentioned inner-cooled vacuum pump; Said inner-cooled vacuum pump also comprises to be located in the said holding cavity and axially extended guide; The inner wall section space of the outer circumferential face of said guide and said holding cavity; Form the heat dissipation channel of an annular between the outer circumferential face of said guide and the inwall of said holding cavity, said guide be provided with one axially run through guide second inlet opening that is interconnected with said first inlet opening of penetration hole,, reach some through holes that are communicated with said heat dissipation channel and penetration hole.
Said cooling liquid is inputed to by second inlet opening in the penetration hole of said guide, is flow in the heat dissipation channel by said through hole again, will be had the cooling liquid output of heat again by first exit orifice; Thereby constituting a loop takes away with effectively that vacuum pump is inner heat.
In above-mentioned inner-cooled vacuum pump, said shell is provided with the 3rd inlet opening, and the 3rd exit orifice that is interconnected with said first exit orifice that are interconnected with said first inlet opening.
In above-mentioned inner-cooled vacuum pump, said first inlet opening, second inlet opening and the 3rd inlet opening lay respectively on the axis of said rotating shaft.
In above-mentioned inner-cooled vacuum pump, the footpath that said first exit orifice, the 3rd exit orifice and through hole lay respectively at said rotating shaft makes progress, and at nearly second inlet nose end of said guide, the outer circumferential face of said guide and the inwall of said holding cavity are fitted each other.
In above-mentioned inner-cooled vacuum pump; Said rotating shaft comprise a rotating shaft main body, and one be sheathed on said rotating shaft main body an end and with the corresponding extension device of the quantity of said rotating shaft main body; Said holding cavity runs through said rotating shaft main body and extension device, and said guide extends to the rotating shaft bulk end far away of said extension device; The rotating shaft bulk end far away of said extension device is located in said first inlet opening, and said first exit orifice is located on the said extension device and between said first inlet opening and said rotating shaft main body.
In above-mentioned inner-cooled vacuum pump; The nearly rotating shaft bulk end of said extension device forms the holding section of a ring-type to said rotating shaft Subject Extension, and said holding section is sheathed on the said rotating shaft main body and the inner peripheral surface of said holding section is attached on the outer circumferential face of said rotating shaft main body.
In above-mentioned inner-cooled vacuum pump, said shell is provided with one and accommodates said rotor is communicated with said the 3rd inlet opening and containing space in containing space, wherein connecting groove; Said rotating shaft main body stretches in the said connecting groove, and said extension device is contained in the said connecting groove.
In above-mentioned inner-cooled vacuum pump, said inner-cooled vacuum pump also comprises some Sealings, and said Sealing is located at the both sides of the nearly rotating shaft bulk end of said extension device respectively, and said Sealing is an oil sealing.
In above-mentioned inner-cooled vacuum pump, said rotor is a screw rod.
Compared with prior art, in this inner-cooled vacuum pump, said rotating shaft is provided with an axially extended holding cavity, and is communicated with said holding cavity and extraneous first inlet opening and a said holding cavity of connection and the first extraneous exit orifice; Cooling liquid is inputed in the said holding cavity and by said first exit orifice by first inlet opening and exports, thereby reaches the purpose to said vacuum pump internal cooling; This inner-cooled vacuum pump is not only simple in structure, and good heat dissipation effect, and then can prolong the working life of vacuum pump.
Description of drawings
Fig. 1 is the sectional view of this inner-cooled vacuum pump.
Among the figure, 10, shell; 11, the 3rd inlet opening; 12, the 3rd exit orifice; 13, containing space; 20, rotor; 30, rotating shaft; 31, rotating shaft main body; 32, extension device; 322, first exit orifice; 323, holding section; 33, holding cavity; 40, drive motor; 50, guide; 51, penetration hole; 52, second inlet opening; 53, through hole; 60, Sealing; 70, heat dissipation channel.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
See also Fig. 1; This inner-cooled vacuum pump comprises a shell 10, at least onely is located at rotor 20 in the said shell 10, and rotating shaft 30, that run through said rotor 20 corresponding with the quantity of said rotor 20 is connected with said rotating shaft 30 and drive motor 40, a guide 50 and the some Sealing 60 of power to said rotating shaft 30 are provided.In the present embodiment, said rotor 20 is a screw rod; Said Sealing 60 is an oil sealing.
Please continue to consult Fig. 1, said rotating shaft 30 comprise a rotating shaft main body 31, and one be sheathed on said rotating shaft main body 31 an end and with the corresponding extension device 32 of the quantity of said rotating shaft main body 31.In the present embodiment, the quantity of said rotor 20, rotating shaft 30 and extension device 32 all is two.Said rotating shaft 30 is provided with an axially extended holding cavity 33, and said holding cavity 33 axially runs through said rotating shaft main body 31 and extension device 32.Said rotating shaft 30 is provided with one and is communicated with said holding cavity 33 and the extraneous first inlet opening (not shown) and a said holding cavity 33 of connection and the first extraneous exit orifice 322.Rotating shaft main body 31 ends far away of said extension device 32 are located in said first inlet opening.Said first exit orifice 322 is located on the said extension device 32 and between said first inlet opening and said rotating shaft main body 31.Nearly rotating shaft main body 31 ends of said extension device 32 extend to form the holding section 323 of a ring-type to said rotating shaft main body 31.Said holding section 323 is sheathed on the said rotating shaft main body 31 and the inner peripheral surface of said holding section 323 is attached on the outer circumferential face of said rotating shaft main body 31.
Please continue to consult Fig. 1, said guide 50 extends to rotating shaft main body 31 ends far away of said extension device 32.Said guide 50 is for extending axially and be contained in the said holding cavity 33.Said guide 50 be provided with one axially run through said guide 50 second inlet opening 52 that is interconnected with said first inlet opening of penetration hole 51,, and some through holes 53 that are communicated with said heat dissipation channel 70 and penetration hole.The inner wall section space of the outer circumferential face of said guide 50 and said holding cavity 33.52 ends in nearly second inlet opening of said guide, the inwall of the outer circumferential face of said guide 50 and said holding cavity 33 is fitted each other.Form the heat dissipation channel 70 of an annular between the inwall of the outer circumferential face of said guide 50 and said holding cavity 33.Said Sealing 60 is located at the both sides of said extension device 32 nearly rotating shaft main body 31 ends respectively.
Please continue to consult Fig. 1, said shell 10 be provided with one be interconnected with said first inlet opening the 3rd inlet opening 11, one with the 3rd exit orifice 12, that said first exit orifice 322 is interconnected accommodate said rotor 20 in wherein containing space 13, and one be communicated with said the 3rd inlet opening 11 and containing space 13 the connecting groove (not shown).Said rotating shaft main body 31 parts stretch in the said connecting groove, and said extension device 32 is contained in the said connecting groove.Said first inlet opening, second inlet opening 52 and the 3rd inlet opening 11 lay respectively on the axis of said rotating shaft 30.The footpath that said first exit orifice 322, the 3rd exit orifice 12 and through hole 53 lay respectively at said rotating shaft 30 upwards.
Please continue to consult Fig. 1, in use, said drive motor 40 drives said rotating shaft 30 and rotates, thereby makes said rotor 20 rotate around said rotating shaft 30, thereby has produced heat in the inside of said vacuum pump.Meanwhile, said cooling liquid is inputed to by second inlet opening 52 in the penetration hole 51 of said guide 50, is flow in the heat dissipation channel 70 by said through hole 53 again, will have the cooling liquid output of heat again via first exit orifice 322 and the 3rd exit orifice 12; Thereby constituting a loop takes away with effectively that vacuum pump is inner heat.
In sum, the utility model inner-cooled vacuum pump is through being provided with axially extended holding cavity 33, being communicated with the said holding cavity 33 and extraneous first inlet opening and being communicated with said holding cavity 33 and the first extraneous exit orifice 322 in said rotating shaft 30; Said cooling liquid is inputed in the said holding cavity 33 and by said first exit orifice 322 by first inlet opening and exports, thereby reaches the purpose to said vacuum pump internal cooling.This inner-cooled vacuum pump is not only simple in structure, and good heat dissipation effect, and then can prolong the working life of vacuum pump.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Claims (10)
1. inner-cooled vacuum pump; Comprise a shell (10), at least one be located at rotor (20) in the said shell (10), corresponding with the quantity of said rotor (20) and run through said rotor (20) rotating shaft (30), and one be connected with said rotating shaft (30) and the drive motor of power to said rotating shaft (30) (40) be provided; It is characterized in that said rotating shaft (30) is provided with an axially extended holding cavity (33), and is communicated with said holding cavity (33) and extraneous first inlet opening and a connection said holding cavity (33) and extraneous first exit orifice (322).
2. inner-cooled vacuum pump according to claim 1; It is characterized in that; Said inner-cooled vacuum pump also comprises to be located in the said holding cavity (33) and axially extended guide (50); The inner wall section space of the outer circumferential face of said guide (50) and said holding cavity (33); Form the heat dissipation channel (70) of an annular between the inwall of the outer circumferential face of said guide (50) and said holding cavity (33), said guide (50) be provided with one axially run through said guide (50) second inlet opening (52) that is interconnected with said first inlet opening of penetration hole (51),, reach some through holes (53) that are communicated with said heat dissipation channel (70) and penetration hole (51).
3. inner-cooled vacuum pump according to claim 2 is characterized in that, said shell (10) is provided with the 3rd inlet opening (11), and the 3rd exit orifice (12) that is interconnected with said first exit orifice (322) that are interconnected with said first inlet opening.
4. inner-cooled vacuum pump according to claim 3; It is characterized in that; Said first inlet opening, second inlet opening (52) and the 3rd inlet opening (11) lay respectively on the axis of said rotating shaft (30); The end in nearly second inlet opening (52) of said guide (50), the inwall of the outer circumferential face of said guide (50) and said holding cavity (33) is fitted each other.
5. according to claim 3 or 4 described inner-cooled vacuum pumps, it is characterized in that the footpath that said first exit orifice (322), the 3rd exit orifice (12) and through hole (53) lay respectively at said rotating shaft (30) makes progress.
6. according to claim 3 or 4 described inner-cooled vacuum pumps; It is characterized in that; Said rotating shaft (30) comprise a rotating shaft main body (31), and one be sheathed on said rotating shaft main body (31) an end and with the corresponding extension device of quantity (32) of said rotating shaft main body (31); Said holding cavity (33) runs through said rotating shaft main body (31) and extension device (32), and said guide (50) extends to rotating shaft main body far away (31) end of said extension device (32); Rotating shaft main body far away (31) end of said extension device (32) is located in said first inlet opening, and said first exit orifice (322) is located on the said extension device (32) and is positioned between said first inlet opening and the said rotating shaft main body (31).
7. inner-cooled vacuum pump according to claim 6; It is characterized in that; The nearly rotating shaft main body (31) of said extension device (32) is held the holding section (323) that extends to form a ring-type to said rotating shaft main body (31), and said holding section (323) are sheathed on the said rotating shaft main body (31) and the inner peripheral surfaces of said holding section (323) are attached on the outer circumferential face of said rotating shaft main body (31).
8. inner-cooled vacuum pump according to claim 6 is characterized in that, said shell (10) is provided with one and accommodates said rotor (20) is communicated with said the 3rd inlet opening (11) and containing space (13) in containing space (13), wherein connecting groove; Said rotating shaft main body (31) part stretches in the said connecting groove, and said extension device (32) is contained in the said connecting groove.
9. inner-cooled vacuum pump according to claim 6; It is characterized in that; Said inner-cooled vacuum pump also comprises some Sealings (60), and said Sealing (60) is located at the both sides of nearly rotating shaft main body (31) end of said extension device (32) respectively, and said Sealing (60) is an oil sealing.
10. according to claim 7,8 or 9 described inner-cooled vacuum pumps, it is characterized in that said rotor (20) is a screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201604091U CN202108731U (en) | 2011-05-19 | 2011-05-19 | Internal cooling vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201604091U CN202108731U (en) | 2011-05-19 | 2011-05-19 | Internal cooling vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108731U true CN202108731U (en) | 2012-01-11 |
Family
ID=45434168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201604091U Expired - Fee Related CN202108731U (en) | 2011-05-19 | 2011-05-19 | Internal cooling vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108731U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192151A (en) * | 2011-05-19 | 2011-09-21 | 台州市星光真空设备制造有限公司 | Inner cooled type vacuum pump |
| CN106401956A (en) * | 2016-11-30 | 2017-02-15 | 南京妙策传媒有限公司 | Oil screw compressor based on internal cooling treatment |
-
2011
- 2011-05-19 CN CN2011201604091U patent/CN202108731U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192151A (en) * | 2011-05-19 | 2011-09-21 | 台州市星光真空设备制造有限公司 | Inner cooled type vacuum pump |
| CN106401956A (en) * | 2016-11-30 | 2017-02-15 | 南京妙策传媒有限公司 | Oil screw compressor based on internal cooling treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101728903B (en) | Motor and transmission mechanism thereof | |
| CN107250547A (en) | Without oil feeding type compressor | |
| CN101608695B (en) | Rotary valve | |
| CN102192151A (en) | Inner cooled type vacuum pump | |
| CN106286338A (en) | The structure that the centrifugal compressor leakage air using high-speed electric expreess locomotive is cooled down | |
| US20170241437A1 (en) | Cooling or heating fluid circulation system of a double-supported centrifugal pump | |
| CN202108731U (en) | Internal cooling vacuum pump | |
| CN106655632A (en) | Oil cooling loop system, driving motor, power system and automobile | |
| CN201874822U (en) | Screw type vacuum pump | |
| CN101350552B (en) | Permanent magnet clutch with refrigerating device | |
| CN107542913B (en) | Heat dissipation type speed reducer | |
| CN220168539U (en) | Helical gear planetary speed reduction structure | |
| CN110195706A (en) | A kind of electronic water pump to be radiated using itself medium | |
| CN202768377U (en) | Self-radiating liquid pump | |
| CN209402312U (en) | A kind of motor | |
| CN208691089U (en) | A kind of cold servo motor of oil | |
| CN205225947U (en) | Water -cooled hydraulic pressure station | |
| CN102270903B (en) | Through liquid-cooling self-circulation driving motor | |
| CN204704134U (en) | To the structure adopting the centrifugal compressor leakage air of high-speed electric expreess locomotive to cool | |
| CN202301030U (en) | Single-screw air compressor utilizing water lubrication | |
| CN205806426U (en) | A kind of Novel speed reducer | |
| RU108495U1 (en) | FUEL FEEDING AND REGULATING GAS TURBINE ENGINE | |
| CN211231468U (en) | Multifunctional high-rotation-speed air compressor | |
| CN204391958U (en) | A kind of oil cooling structure of servomotor | |
| CN208845370U (en) | A kind of centrifugal pump with water-cooled pump cover and sealing gland |
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: 20120111 Termination date: 20160519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |