CN204402893U - Dynamic balancing sliding valve vacuum pump - Google Patents
Dynamic balancing sliding valve vacuum pump Download PDFInfo
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- CN204402893U CN204402893U CN201520012515.3U CN201520012515U CN204402893U CN 204402893 U CN204402893 U CN 204402893U CN 201520012515 U CN201520012515 U CN 201520012515U CN 204402893 U CN204402893 U CN 204402893U
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Abstract
The utility model relates to a kind of dynamic balancing sliding valve vacuum pump, comprise the pump housing, pump shaft, the guiding valve eccentric mechanism be arranged on pump shaft, pump housing inner chamber is separated into three separate chamber, chamber centered by middle chamber, central lumen side is closed end chamber near Pump Shaft Seal closed end, and near pump shaft external part is open end chamber; Pump shaft is provided with three groups of guiding valve eccentric mechanisms, three groups of guiding valve eccentric mechanisms are installed in three separate chamber respectively.The beneficial effects of the utility model are: adopt three guiding valve eccentric mechanisms, and the cancelling out each other of centrifugal force and gravity when utilizing slide-valve gear to operate, thoroughly solves the running dynamic equilibrium problems of pump; During long cylinder air-breathing, the cylinder of losing heart of two sides is exhaled, and can realize dynamic balancing during pump High Rotation Speed, the supporting force of pump shaft also reduces greatly, and pump shaft rotates a circle and can realize secondary suction and exhaust; Motor is arranged on the top of oil-tank of sliding valve vacuum pump, saves the huge chassis of existing product, and floor space reduces, and weight declines.
Description
Technical field
The utility model relates to a kind of dynamic balancing sliding valve vacuum pump.
Background technique
Sliding valve vacuum pump is one of most widely used vacuum pump in the current whole world, be mainly used in suction or conveying air and other clean gas and to sliding valve vacuum pump recycle oil without destruction and containing in the special gas of certain dust or the technique of condensable gas.The application of sliding valve vacuum pump almost spreads all trades and professions in all kinds of techniques that all needs vacuumize.
Sliding valve vacuum pump is primarily of component compositions such as the pump housing, side pump cover, guiding valve, guide rail, pump shaft, eccentric wheel, fuel tank, belt pulley, belt, motor, chassis.
Existing product mainly has the following disadvantages:
1, the motion of pump is eccentric rotary mechanism, and existing product adopts single guiding valve eccentric wheel rotating machinery, and cannot accomplish dynamic balancing, product ubiquity vibrates large defect;
2, when existing product runs, the centrifugal force that is subject to of bearing is very large, and pump shaft rotates a circle and can only realize the process of air-breathing, exhaust, and energy consumption is comparatively large, there is the defects such as moving parts quick abrasion, working life is short;
3, because existing product vibration is very large, the rotating speed of pump is very limited, and general sliding valve vacuum pump rotating speed can only accomplish about 500rpm.In order to reduce the vibration of pump, pump head and motor must be arranged on a heavy chassis, and the occupation of land of such pump is just very large, and weight is very heavy.
Model utility content
The technical problems to be solved in the utility model is: based on the problems referred to above, provides a kind of dynamic balancing sliding valve vacuum pump.
The utility model solves the technological scheme that its technical problem adopts: a kind of dynamic balancing sliding valve vacuum pump, comprise the pump housing, pump shaft, the guiding valve eccentric mechanism be arranged on pump shaft, guiding valve eccentric mechanism comprises guide rail, eccentric wheel and guiding valve, pump housing inner chamber is separated into three separate chamber, chamber centered by middle chamber, central lumen side is closed end chamber near Pump Shaft Seal closed end, and near pump shaft external part is open end chamber;
Pump shaft is provided with three groups of guiding valve eccentric mechanisms, three groups of guiding valve eccentric mechanisms are installed in three separate chamber respectively, the eccentric length of central chamber, weight are respectively the eccentric wheel sum in two side cavity, the eccentric length in both sides closed end chamber and open end chamber and being equal in weight; Eccentric wheel in eccentric wheel in intermediate cavity and two side cavity all oppositely distributes in 180 °;
The pump housing housing at three separate chamber tops is provided with corresponding three groups of outlet valves; The motor be connected with pump shaft is installed above the pump housing.
Further, be connected with outlet pipe above outlet valve, outlet pipe top is provided with oil blocking cover.
Further, the side end of outlet pipe is relief opening, and exhaust ports is provided with oil gas and subtracts day with fog.
Further, the upper end that oil gas subtracts day with fog offers evacuation port, and lower end is provided with oil outlet, and oil outlet is connected with the spill port of fuel tank, oil gas is subtracted the oily recycling that day with fog traps.
Further, fuel tank has been installed at pump housing top, and fuel tank side is provided with fuel tank side cover, and tank side covers and is provided with visor window.
Further, the beam of vibrations is produced when being provided with bottom the pump housing for improving pump operation.
The beneficial effects of the utility model are: adopt three guiding valve eccentric mechanisms, and the cancelling out each other of centrifugal force and gravity when utilizing slide-valve gear to operate, thoroughly solves the running dynamic equilibrium problems of pump; During long cylinder air-breathing, the cylinder of losing heart of two sides is exhaled, and can realize dynamic balancing during pump High Rotation Speed, the supporting force of pump shaft also reduces greatly, and pump shaft rotates a circle and can realize secondary suction and exhaust process; Motor is directly installed on the top of oil-tank of sliding valve vacuum pump, not only saves the huge chassis of existing product, and floor space reduces more than 60%, and weight declines more than 50%.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is plan view of the present utility model;
Fig. 2 is left view of the present utility model;
Fig. 3 is right elevation of the present utility model;
Fig. 4 is plan view of the present utility model;
Fig. 5 is that the A-A of Fig. 1 is to sectional view;
Fig. 6 is that the B-B of Fig. 2 is to sectional view.
Wherein: 1. the pump housing, 2. guide rail, 3. guiding valve, 4. eccentric wheel, 5. pump shaft, 6. outlet valve, 7. valve pocket lid, 8. visor window, 9. fuel tank side cover, 10. fuel tank, 11. oil blocking covers, 12. outlet pipes, 13. pumping fluids, 14. suction ports, 15. oil pumps, 16. oil pump seats, 17. closed end end caps, 18. spill ports, 19. relief openings, 20. oil outlets, 21. oil gas subtract day with fog, 22. evacuation ports, 23. motor, 24. motor bedplates, 25. motor pulley, 26. v belt, 27. pump belt wheels, 28. belt wheel protection hoods, 29. rolling bearings, 30. mechanical seals, 31. bearing supports, 32. open end end caps, 33. base plates, 34. beams, 35. movable end covers.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of dynamic balancing sliding valve vacuum pump as shown in figs. 1 to 6, comprise the pump housing 1, guide rail 2 is provided with in the guide rail hole of the pump housing 1, be provided with pump shaft 5 in the cavity of the pump housing 1, the pump housing 1 inner chamber is separated into three separate chamber, chamber centered by middle chamber, central lumen side is closed end chamber near pump shaft 5 closed end, near pump shaft 5 external part is open end chamber, and the outside closed end end cap 17 of closed end chamber seals, and the outside open end end cap 32 of open end chamber seals.
Pump shaft 5 is provided with three guiding valves 3 and three eccentric wheels 4, operationally state of equilibrium is in all the time in order to make pump, the eccentric wheel 4 of intermediate cavity is longer is long eccentric wheel, the eccentric wheel 4 of two side cavity is shorter is short eccentric wheel, long eccentric length is equal with two side short eccentric wheel sums with weight, the two short eccentric length in side be equal in weight.Two short eccentric wheels of long eccentric wheel and both sides all oppositely distribute in 180 ° on main shaft 5, and namely the short eccentric wheel of both sides is in same direction, and long eccentric wheel is positioned at the opposite direction of a short eccentric straight line.Match with certain interval and are installed together in the endoporus of guiding valve 3 and the outer ring of eccentric wheel 4, the upper end of guiding valve 3 is goed deep into certain interval in the elongated hole of guide rail 2, during pump operation, pump shaft 5 is with movable eccentric wheel 4 to rotate, and eccentric wheel 4 drives guide rail 2 in pump chamber, do rotation and rocks compound motion and realize air-breathing exhaust process.
Fuel tank 10 has been installed at the pump housing 1 top, and three chamber roof of the pump housing 1 are provided with 4 outlet valves, 6,4 outlet valves 6 and are divided into three groups, outlet valve 6 top is provided with valve pocket lid 7, valve pocket lid 7 top connects outlet pipe 12, and oil blocking cover 11 has been installed at outlet pipe 12 top, and oil blocking cover 11 is placed in fuel tank 10.
The side of the pump housing 1 is provided with suction port 14, and suction port 14 is connected with pump housing air aspiration cavity.Fuel tank 10 side surface upper part is provided with relief opening 19, and relief opening 19 is connected with outlet pipe 12.Relief opening 19 place is provided with oil gas and subtracts day with fog 21, oil gas subtracts day with fog 21 and the oil gas that slide valve pump is discharged can be separated automatically, air is discharged by the evacuation port 22 of upper end, and the oil trapped can be discharged to the spill port 18 of fuel tank 10 by pumping fluid 13 recycling again by the oil outlet 20 of lower end.
Fuel tank 10 top is provided with motor 23, motor 23 is fixedly mounted on fuel tank 10 top by motor bedplate 24, motor 23 goes out axle head and is provided with motor pulley 25, the axle head that goes out of pump shaft 5 is equipped with pump belt wheel 27, by v belt 26, motor 23 is connected with pump shaft 5, the belt wheel protection hood 28 of full-closed structure has been installed outside v belt 26.
The closed end chamber medial extremity of the pump housing 1 is equipped with dismountable movable end cover 35, outboard end is provided with closed end end cap 17, closed end end cap arranged outside oil pump seat 16, oil pump seat 16 is provided with oil pump 15, oil pump 15 and pump shaft 5 direct-connection transmission, the pumping fluid 13 in fuel tank 10 is transported to each kinematic pair of slide valve pump by oil pump 15 by oil pipe.The side of the pump housing 1 going out axle head of pump shaft 5 is provided with open end end cap 32, is provided with bearing support 31 outside open end end cap 32, is provided with rolling bearing 29 and mechanical seal 30 outside bearing support 31.
Fuel tank 10 side is provided with fuel tank side cover 9, fuel tank side cover 9 is provided with visor window 8.
Be provided with base plate 33 bottom the pump housing 1, base plate 33 installed below four for improving pump operation time produce the beam 34 of vibrations.
This sliding valve vacuum pump changes the single of existing product or two guiding valve eccentric mechanisms, adopt three guiding valve eccentric mechanisms, when utilizing slide-valve gear to operate, centrifugal force and gravity cancels out each other, the running dynamic equilibrium problems of thorough solution pump, makes pump can realize the high running speed of 1000rpm and lower vibration like this.
This sliding valve vacuum pump adopts three eccentric three cylinder mechanisms of guiding valve, during long cylinder air-breathing, the cylinder of losing heart of two sides is exhaled, and can realize dynamic balancing during pump High Rotation Speed, the supporting force of pump shaft also reduces greatly, and pump shaft rotates a circle and can realize secondary suction and exhaust process.
This sliding valve vacuum pump is owing to possessing good dynamic balancing, and motor can be directly installed on the top of oil-tank of sliding valve vacuum pump, not only saves the huge chassis of existing product, and floor space reduces more than 60%, and weight declines more than 50%.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (6)
1. a dynamic balancing sliding valve vacuum pump, comprise the pump housing (1), pump shaft (5), the guiding valve eccentric mechanism be arranged on pump shaft (5), guiding valve eccentric mechanism comprises guide rail (2), eccentric wheel (4) and guiding valve (3), it is characterized in that: the described pump housing (1) inner chamber is separated into three separate chamber, chamber centered by middle chamber, central lumen side is closed end chamber near pump shaft (5) closed end, and near pump shaft (5) external part is open end chamber;
Pump shaft (5) is provided with three groups of guiding valve eccentric mechanisms, three groups of guiding valve eccentric mechanisms are installed in three separate chamber respectively, the length of the eccentric wheel (4) of central chamber, weight are respectively eccentric wheel (4) sum in two side cavity, the length of the eccentric wheel (4) in both sides closed end chamber and open end chamber and being equal in weight; Eccentric wheel (4) in intermediate cavity all oppositely distributes in 180 ° with the eccentric wheel (4) in two side cavity;
The pump housing (1) housing at three separate chamber tops is provided with corresponding three groups of outlet valves (6);
The pump housing (1) top is provided with the motor (23) be connected with pump shaft (5).
2. dynamic balancing sliding valve vacuum pump according to claim 1, is characterized in that: described outlet valve (6) top is connected with outlet pipe (12), and outlet pipe (12) top is provided with oil blocking cover (11).
3. dynamic balancing sliding valve vacuum pump according to claim 2, is characterized in that: the side end of described outlet pipe (12) is relief opening (19), and relief opening (19) place is provided with oil gas and subtracts day with fog (21).
4. the dynamic balancing sliding valve vacuum pump according to claim 1 or 3, it is characterized in that: the upper end that described oil gas subtracts day with fog (21) offers evacuation port (22), lower end is provided with oil outlet (20), oil outlet (20) is connected with the spill port (18) of fuel tank (10), oil gas is subtracted the oily recycling that day with fog (21) traps.
5. dynamic balancing sliding valve vacuum pump according to claim 1, it is characterized in that: fuel tank (10) has been installed at the described pump housing (1) top, fuel tank (10) side is provided with fuel tank side cover (9), fuel tank side cover (9) is provided with visor window (8).
6. dynamic balancing sliding valve vacuum pump according to claim 1, is characterized in that: the beam (34) producing vibrations when the described pump housing (1) bottom is provided with for improving pump operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520012515.3U CN204402893U (en) | 2015-01-08 | 2015-01-08 | Dynamic balancing sliding valve vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520012515.3U CN204402893U (en) | 2015-01-08 | 2015-01-08 | Dynamic balancing sliding valve vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402893U true CN204402893U (en) | 2015-06-17 |
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ID=53426759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520012515.3U Active CN204402893U (en) | 2015-01-08 | 2015-01-08 | Dynamic balancing sliding valve vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564680A (en) * | 2015-01-08 | 2015-04-29 | 江阴爱尔姆真空设备有限公司 | Vacuum pump of dynamic balancing slide valve |
| 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 |
-
2015
- 2015-01-08 CN CN201520012515.3U patent/CN204402893U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564680A (en) * | 2015-01-08 | 2015-04-29 | 江阴爱尔姆真空设备有限公司 | Vacuum pump of dynamic balancing slide valve |
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |