CN204239246U - With the sliding valve vacuum pump of lubrication assembly - Google Patents
With the sliding valve vacuum pump of lubrication assembly Download PDFInfo
- Publication number
- CN204239246U CN204239246U CN201420667453.5U CN201420667453U CN204239246U CN 204239246 U CN204239246 U CN 204239246U CN 201420667453 U CN201420667453 U CN 201420667453U CN 204239246 U CN204239246 U CN 204239246U
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- eccentric wheel
- lubrication assembly
- slide block
- vacuum pump
- liquid storage
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Abstract
The utility model discloses a kind of sliding valve vacuum pump with lubrication assembly, its drip irrigation device is: a kind of sliding valve vacuum pump with lubrication assembly, comprise frame, described frame is provided with the pump housing, the pump housing is provided with intakeport and relief opening, pump body is provided with pumping cylinder, pumping cylinder inside is provided with eccentric wheel, described eccentric wheel rotating shaft is positioned at pumping cylinder central position, guiding valve ring is arranged with at eccentric wheel external activity, guiding valve ring outside is axially arranged with slide valve lever along guiding valve ring, slide valve lever side is provided with the air inlet duct communicated with intakeport, described eccentric wheel outer surface Circle-Array shows some oil guide slot, described guiding valve ring is provided with the lubrication assembly coordinated with oil guide slot, by arranging lubrication assembly, the face that can contact with guiding valve ring to eccentric wheel when eccentric wheel works is lubricated.
Description
Technical field
The utility model relates to a kind of vacuum pump, and more particularly, it relates to a kind of sliding valve vacuum pump with lubrication assembly that can carry out selflubricating from the guiding valve ring inside of sliding valve vacuum pump to eccentric wheel.
Background technique
Sliding valve vacuum pump, degree of vacuum is high, rate of air sucked in required is large, the transformer of power industry can be widely used in, electric wire, the vacuum impregnation of capacitor, in vacuum drying process, pumping cylinder is provided with at pump body, guiding valve ring is housed in pumping cylinder, at guiding valve ring built with eccentric wheel, eccentric wheel is by being arranged on eccentric wheel and the rotating shaft driven rotary of leading to outside the pump housing, the center of rotating shaft overlaps with pumping cylinder center, the cylindrical of guiding valve ring slides at the internal surface of pumping cylinder, the slide valve lever on guiding valve ring top freely slides up and down and swings in semicircular guide rail, slide valve lever side is provided with the air inlet duct identical with intakeport, therefore pumping cylinder is divided into hyperbaric chamber and low-pressure cavity by guiding valve ring and slide valve lever, during work, driven by motor eccentric wheel rotates, guiding valve ring cylindrical rotates in the outer surface laminating of pumping cylinder, now, the low-pressure cavity be connected with intakeport expands gradually, outside air enters low-pressure cavity by intakeport via air inlet duct, the hyperbaric chamber be connected with relief opening reduces gradually, air in hyperbaric chamber is discharged the pump housing by relief opening, it is last until low-pressure cavity becomes maximum, hyperbaric chamber becomes minimum, along with the rotation of guiding valve ring, the continuous repetitive cycling of this process realizes the exhaust of bleeding of sliding valve vacuum pump.
But in practical work process, contact because eccentric wheel is fitted with guiding valve ring, in running up, for preventing because rapid wear causes eccentric wheel and guiding valve ring to shorten working life, lubricating fitting is provided with in eccentric wheel outside, but because this lubricating fitting is lubricating eccentric wheel from eccentric wheel outside, lubrication effect is very limited.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of sliding valve vacuum pump with lubrication assembly that can carry out selflubricating from the guiding valve ring inside of sliding valve vacuum pump to eccentric wheel.
For achieving the above object, the utility model adopts following technological scheme, a kind of sliding valve vacuum pump with lubrication assembly, comprise the pump housing, the pump housing is provided with intakeport and relief opening, pump body is provided with pumping cylinder, pumping cylinder inside is provided with eccentric wheel, described eccentric axis of rotation is arranged at pumping cylinder central position, eccentric wheel external activity is arranged with guiding valve ring, guiding valve ring outside is axially arranged with slide valve lever along guiding valve ring, slide valve lever side is provided with the air inlet duct communicated with intakeport, described eccentric wheel outer surface Circle-Array shows some oil guide slot, described guiding valve ring is provided with the lubrication assembly coordinated with oil guide slot.
Preferably, described lubrication assembly comprises through hole, described through hole is arranged on guiding valve ring and is positioned at guiding valve ring and slide valve lever joint, sealing plate is provided with bottom described air inlet duct, described sealing plate forms liquid storage cylinder with air inlet duct inwall, described through hole is connected with liquid storage cylinder, is provided with the slide block controlling through hole and open and close in described through hole.
Preferably, cave inward in the middle part of described slide block formation liquid storage tank, slide block is provided with the elastic component be connected with sealing plate away from eccentric side, described slide block has and the primary importance of eccentric wheel exterior surface and the second place that contacts with oil guide slot, when described slide block is in primary importance, liquid storage tank communicates with liquid storage cylinder, and when described slide block is in the second place, liquid storage tank communicates with oil guide slot.
Preferably, the face that described slide block and through hole fit is provided with some seal rings.
Preferably, described elastic component is spring, and described slider bottom is provided with the counterbore matched with spring, and described spring one end is fixedly arranged in counterbore, and the other end and sealing plate abut, and described spring is in impaction state all the time.
Preferably, described number of openings is several and arranges along liquid storage cylinder length direction.
Preferably, described slide block is provided with arc structure away from the one end being provided with elastic component.
Preferably, two sidelines of described oil guide slot and shaft parallel are provided with rounding structure.
The utility model hinge structure is compared to be had: eccentric wheel is provided with some oil guide slot, guiding valve ring is provided with sealing plate, sealing plate forms liquid storage cylinder with air inlet duct, guiding valve ring is provided with the through hole coordinated with oil guide slot, through hole one end contacts with eccentric wheel, the other end communicates with liquid storage cylinder, in oil guide slot, slide block is installed, when eccentric surfaces and slide block ends contact, slide block is headed in liquid storage cylinder, liquid storage tank in the middle part of slide block and liquid storage cylinder are come round, lubricant oil in liquid storage cylinder flows in liquid storage cylinder, when oil guide slot and shoe contact, slide block slides, lubricant oil in liquid storage cylinder flows in oil guide slot, along with eccentric rotation, this process constantly repeats, realize eccentric lubrication, because slide block and through hole are all connected with the oil guide slot of eccentric inside, therefore can lubricate from eccentric wheel inside eccentric wheel, lubrication effect is better.
Accompanying drawing explanation
Fig. 1 is the general assembly sectional view of the utility model with the sliding valve vacuum pump embodiment of lubrication assembly;
Fig. 2 sectional view when to be the utility model be in primary importance with the slide block of the sliding valve vacuum pump embodiment of lubrication assembly;
Fig. 3 is A portion enlarged view in Fig. 2;
Fig. 4 sectional view when to be the utility model be in the second place with the slide block of the sliding valve vacuum pump embodiment of lubrication assembly
Fig. 5 is B portion enlarged view in Fig. 4;
Fig. 6 is the slide valve lever sectional view of the utility model with the sliding valve vacuum pump embodiment of lubrication assembly;
Fig. 7 is C portion enlarged view in Fig. 6.
In figure; 1. the pump housing; 11. pumping cylinders; 12. intakepories; 13. relief openings; 2. eccentric wheel; 21. oil guide slot; 22 rotating shafts; 3. guiding valve ring; 31. slide valve levers; 311. air inlet duct; 312. sealing plate; 313. through hole; 314. liquid storage cylinder; 4. slide block; 41. liquid storage tanks; 42. counterbores; 43. seal rings; 44. arc structures; 5. outlet valve; 6. guide rail; 7. spring.
Embodiment
Below in conjunction with accompanying drawing, the sliding valve vacuum pump embodiment of the utility model with lubrication assembly is described further.
A kind of sliding valve vacuum pump with lubrication assembly, comprise the pump housing, pump body is provided with pumping cylinder 11, the pump housing is provided with intakeport 12 and relief opening 13, intakeport 12 communicates with pumping cylinder 11 with relief opening 13, the pump housing is provided with rotating guide rail 6 at intakeport 12 place, eccentric wheel 2 is provided with in pumping cylinder 11, eccentric wheel 2 rotating shaft 22 is arranged at pumping cylinder 11 center, eccentric wheel 2 rotating shaft 22 is stretched out pump body portion and is connected with motor, eccentric wheel 2 is arranged with guiding valve ring 3, guiding valve ring 3 is integrally formed with slide valve lever 31 vertically, slide valve lever 31 matches with guide rail 6, slide valve lever 31 side is provided with the air inlet duct 311 communicated with intakeport 12, air inlet duct 311 is arranged on the side away from relief opening 13 on slide valve lever 31, during work, driven by motor eccentric wheel 2 rotates, eccentric wheel 2 is with movable pulley ring 3 and slide valve lever 31 slide up and down in guide rail 6 and swing, now, the low-pressure cavity be connected with intakeport 12 expands gradually, outside air enters low-pressure cavity by intakeport 12 via air inlet duct 311, the hyperbaric chamber be connected with relief opening 13 reduces gradually, air in hyperbaric chamber is discharged the pump housing by relief opening 13, it is last until low-pressure cavity becomes maximum, hyperbaric chamber becomes minimum, subsequently, low-pressure cavity restarts air-breathing, working procedure is circulation primary again, at relief opening 13, place is connected with outlet valve 5.
The lubrication assembly that guiding valve ring 3 is arranged comprises through hole 313, slide block 4 and spring 7, be parallel to air inlet duct 311 diapire in air inlet duct 311 and be provided with sealing plate 312, sealing plate 312 and air inlet duct 311 inwall form liquid storage cylinder 314, lubricant oil is provided with in liquid storage cylinder 314, through hole 313 is arranged at slide valve lever 31 and guiding valve ring 3 joint, namely through hole 313 is provided with bottom liquid storage cylinder 314, through hole 313 contacts with eccentric wheel 2, slide block 4 is installed in through hole 313, cave inward in the middle part of slide block 4 and form liquid storage tank 41, slide block 4 one end be positioned at bottom liquid storage cylinder 314 is provided with counterbore 42, spring 7 is provided with in counterbore 42, spring 7 one end is fixed by welding in counterbore 42 diapire, the other end abuts with sealing plate 312, spring 7 operationally, all the time stress is in, eccentric wheel 2 outer surface circle distribution has some oil guide slot 21, choosing oil guide slot 21 quantity in the present embodiment is 6, apart from one another by 60 °, when slide block 4 and eccentric wheel 2 exterior surface, slide block 4 is in primary importance, liquid storage tank 41 now on slide block 4 communicates with liquid storage cylinder 314, the lubricant oil being positioned at liquid storage cylinder 314 flows into liquid storage tank 41, along with the rotation of eccentric wheel 2, slide block 4 contacts with oil guide slot 21, now slide block 4 is in the second place, slide block 4 slides along through hole 313, oil guide slot 21 communicates with liquid storage tank 41, the lubricant oil be stored in liquid storage tank 41 flows in oil guide slot 21, lubricating function is realized to eccentric wheel 2, along with the rotation of eccentric wheel 2, slide block 4 constantly switches in primary importance and the second place, lubrication is realized to eccentric wheel 2, because lubrication assembly is arranged on guiding valve ring 3 inside, directly can lubricate eccentric wheel 2 from eccentric wheel 2 inside, and when slide block 4 is in the second place, slide block 4 is provided with one end of spring 7 and through hole 313 inwall fits, now liquid storage tank 41 is in closed state, in the inflow oil guide slot 21 that the lubricant oil in liquid storage cylinder 314 can be prevented whole, indirectly control the amount that the lubricant oil in liquid storage cylinder 314 flows into, conveniently slide block 4 is transformed into primary importance from the second place, the one end contacted with oil guide slot 21 at slide block 4 is provided with arc structure 44, when not working, if slide block 4 is in primary importance, through hole 313 is in closed state, now lubricant oil can not flow out, if slide block 4 is in the second place, after the outflow of lubrication oil in liquid storage tank 41, liquid storage cylinder 314 is still and is in closed state, this ensures that there to only have and operationally from guiding valve ring 3 inside, eccentric wheel 2 is lubricated, all the other time liquid storage cylinders 314 are all in closed condition, can not be difficult to because there is a large amount of oil in pumping cylinder 11 when ensureing that next time starts start, and oil circuit can be simplified to a certain extent.
Further, in order to play better lubrication effect, in liquid storage cylinder 314, be provided with some through holes 313 along oil guide slot 21 length direction, in the present embodiment, through hole 313 quantity is 5, and the distribution of lubricant oil in oil guide slot 21 can be made so more even.
In addition, be provided with seal ring 43 at slide block 4 near the side of spring 7, when slide block 4 is in the second place, seal ring 43 contacts with through hole 313 inwall, and slide block 4 can be made to play better sealing effect.
See Fig. 5, oil guide slot 21 two sidelines parallel with rotating shaft 22 are provided with rounding structure, facilitate slide block 4 to switch between the first location and the second location, make handoff procedure more level and smooth.
Certainly, in this enforcement, the set-up mode of through hole 313 is not unique, some through holes 313 can be along the circumferential direction provided with in guiding valve ring 3, be connected with liquid storage cylinder 314 by built-in oil circuit between through hole 313, in through hole 313, corresponding lubrication assembly is set, can lubricate eccentric wheel 2 from multiple orientation, play better lubrication effect.
The above is only preferred implementation of the present utility model; protection domain of the present utility model is also not only confined to above-described embodiment; all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model; should be understood that; for those skilled in the art; do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. the sliding valve vacuum pump with lubrication assembly, comprise the pump housing, the pump housing is provided with intakeport and relief opening, pump body is provided with pumping cylinder, pumping cylinder inside is provided with eccentric wheel, described eccentric axis of rotation is arranged at pumping cylinder central position, eccentric wheel external activity is arranged with guiding valve ring, guiding valve ring outside is axially arranged with slide valve lever along guiding valve ring, slide valve lever side is provided with the air inlet duct communicated with intakeport, it is characterized in that: described eccentric wheel outer surface Circle-Array shows some oil guide slot, and described guiding valve ring is provided with the lubrication assembly coordinated with oil guide slot.
2. the sliding valve vacuum pump with lubrication assembly according to claim 1, it is characterized in that: described lubrication assembly comprises through hole, described through hole is arranged on guiding valve ring and is positioned at guiding valve ring and slide valve lever joint, sealing plate is provided with bottom described air inlet duct, described sealing plate forms liquid storage cylinder with air inlet duct inwall, described through hole is connected with liquid storage cylinder, is provided with the slide block controlling through hole and open and close in described through hole.
3. the sliding valve vacuum pump with lubrication assembly according to claim 2, it is characterized in that: cave inward in the middle part of described slide block formation liquid storage tank, slide block is provided with the elastic component be connected with sealing plate away from eccentric side, described slide block has and the primary importance of eccentric wheel exterior surface and the second place that contacts with oil guide slot, when described slide block is in primary importance, liquid storage tank communicates with liquid storage cylinder, and when described slide block is in the second place, liquid storage tank communicates with oil guide slot.
4. the sliding valve vacuum pump with lubrication assembly according to claim 2, is characterized in that: the face that described slide block and through hole fit is provided with some seal rings.
5. the sliding valve vacuum pump with lubrication assembly according to claim 3, it is characterized in that: described elastic component is spring, described slider bottom is provided with the counterbore matched with spring, described spring one end is fixedly arranged in counterbore, the other end and sealing plate abut, and described spring is in impaction state all the time.
6. the sliding valve vacuum pump with lubrication assembly according to claim 2, is characterized in that: described number of openings is several and arranges along liquid storage cylinder length direction.
7. the sliding valve vacuum pump with lubrication assembly according to claim 2, is characterized in that: described slide block is provided with arc structure away from the one end being provided with elastic component.
8. the sliding valve vacuum pump with lubrication assembly according to claim 1, is characterized in that: two sidelines of described oil guide slot and shaft parallel are provided with rounding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667453.5U CN204239246U (en) | 2014-11-10 | 2014-11-10 | With the sliding valve vacuum pump of lubrication assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667453.5U CN204239246U (en) | 2014-11-10 | 2014-11-10 | With the sliding valve vacuum pump of lubrication assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239246U true CN204239246U (en) | 2015-04-01 |
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ID=52768750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420667453.5U Active CN204239246U (en) | 2014-11-10 | 2014-11-10 | With the sliding valve vacuum pump of lubrication assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239246U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090029A (en) * | 2015-09-15 | 2015-11-25 | 苏州普京真空技术有限公司 | Vacuum pump |
| CN110500276A (en) * | 2019-09-24 | 2019-11-26 | 爱德华真空设备股份有限公司 | Lubricated type slide valve pump |
| CN113266567A (en) * | 2021-06-18 | 2021-08-17 | 台州市浙兴真空设备制造有限公司 | Slide valve type vacuum pump |
-
2014
- 2014-11-10 CN CN201420667453.5U patent/CN204239246U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090029A (en) * | 2015-09-15 | 2015-11-25 | 苏州普京真空技术有限公司 | Vacuum pump |
| CN110500276A (en) * | 2019-09-24 | 2019-11-26 | 爱德华真空设备股份有限公司 | Lubricated type slide valve pump |
| CN113266567A (en) * | 2021-06-18 | 2021-08-17 | 台州市浙兴真空设备制造有限公司 | Slide valve type vacuum pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |