CN203718352U - Semi-closed micro electric grease pump - Google Patents
Semi-closed micro electric grease pump Download PDFInfo
- Publication number
- CN203718352U CN203718352U CN201420112936.9U CN201420112936U CN203718352U CN 203718352 U CN203718352 U CN 203718352U CN 201420112936 U CN201420112936 U CN 201420112936U CN 203718352 U CN203718352 U CN 203718352U
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- China
- Prior art keywords
- valve
- oil
- type
- semi
- pump
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- Expired - Lifetime
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- 239000004519 grease Substances 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 230000037452 priming Effects 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Abstract
A semi-closed micro electric grease pump comprises a motor reducer, a crank connecting rod mechanism, a plunger and a pump body. The upper portion of the motor reducer is sealed with a casing, and the mounting surface of the lower portion of the motor reducer is fixed on the pump body through a sealing gasket and a screw. The pump body is provided with a plunger sleeve, an automatic oil draining valve, a pressure regulating valve, a manual air vent valve, an all-closed solenoid directional valve, a self-sealing type oil adding valve and an oil storage drum; and relevant oil ducts in the pump body are communicated with each other. An overflow check valve is installed at the position of a high oil level oil overflow hole of the oil storage drum, a drum cover is provided with a traction type low oil level pinger, and an inner cavity is provided with an oil pressing piston and a conical spring, the drum cover in clearance fit is fixed at the top of the inner cavity, and a first Y-shaped seal ring and a second Y-shaped seal ring with lip edge positions opposite are installed on the oil pressing piston. The electric grease pump not only can improve vibration resistance, but also can obviously improve stain resistance and can be used for a lubrication pump source under poor working conditions.
Description
Technical field
The utility model relates to a kind of miniature electric grease pump, belongs to the function basic components in lubrication technical field.
Background technique
In lubrication system, the working medium adopting is generally thin oil or grease, and because grease film strength is high, form hold facility is strong, is difficult for loss and oiling cycle long, in many general machinery equipments, widely adopts.And for a few thing inclement condition, as the motive position of low-speed heave-load in the equipment such as automobile chassis, engineering machinery, grease almost becomes unique selectable lubricant medium.As the grease pump of core component in grease centralized lubricating system, also should require to have higher functional reliability in severe operating conditions.At present, in known technology, the common grease pump adopting, due to the change of operating conditions, in use there is following problem: the one, resistance to shock is poor, especially adopts the grease pump of steel ball type automatic oil draining valve arrangement, under the operating conditions of high vibration, steel ball spool moves in without guide movement easily lacks of proper care, and opens and closes sluggishness, and when the reciprocal oiling of plunger high frequency time, impact more very; The 2nd, anti-pollution scarce capacity, because grease pump is worked under the environment of high pollution, various pollutants invade grease pump inner chamber by different approaches, once the sealing surface of steel ball and valve port has small pollutant, can cause seal failure and cannot normally work; The 3rd, grease pump outer surface structure sealing is bad, and very easily for pollutant, invade inner chamber passage is provided, the high oil level oil spilling hole of especially offering on oil storage cylinder barrel, external contaminant is easy to enter oil storage cylinder inner chamber.The patent No. of the applicant's application is ZL 200520039961.X < < micro-electric fat lubricating pump > >, in the common working environment such as lathe, light industry and machinery, use and there is good reliability, but acutely and in high pollution environment move in vibration, the functional reliability of its core component double seal combined type automatic oil draining valve obviously declines, therefore all there is in actual use certain limitation.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of semi-enclosed miniature electric grease pump, the above-mentioned narrow limitation existing to overcome prior art.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of semi-enclosed miniature electric grease pump, comprise motor reducer, connecting rod, plunger and the pump housing, the top of described motor reducer is with case by sealing gasket fit sealing, and its underpart attachment face is fixed on the pump housing with screw by gasket seal; On the described pump housing, dispose plunger bushing, automatic oil draining valve, pressure regulator valve, Manual air-release valves, totally enclosed type solenoid directional control valve, self sealing priming valve, oil storage cylinder, inner relevant oil duct is communicated with; Overflow one-way valve is installed at the place, high oil level oil spilling hole of described oil storage cylinder, on cover, is furnished with draw-off type low oil level signal-transmitting machine, inner chamber configuration force feed piston and volute spring, top is fixed with the cover of Spielpassung, and the first relative y-type seal ring of position, lip limit and the second y-type seal ring are housed on force feed piston.
The further technological scheme of the utility model is: described automatic oil draining valve comprises cone valve, is inlaid in rectangular seal, pressing plate, spring on cone valve conical surface, the end of cone valve is pressed on the inner conical surface valve port of plunger bushing by spring by pressing plate, form hard sealing surface, the inner conical surface of rectangular seal and plunger bushing forms soft sealing face.Described pressure regulator valve is plunger type cartridge valve, comprises an O type circle, guiding valve, spring seat, pressure adjusting spring, the 2nd O type circle, valve body, adjustment swivel nut, Cock screw.
Adopt after technique scheme, can not only improve the resistance to shock of grease pump, and can obviously improve stain resistance, thereby effectively improve the reliability of working under severe working environment, be used in the lubricated pumping source under severe operating conditions.
Below in conjunction with drawings and the specific embodiments, technology contents of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment's of the utility model miniature electric grease pump structural representation.
Fig. 2 is automatic oil draining valve arrangement schematic diagram of the present utility model.
Fig. 3 is the structural representation of pressure regulator valve of the present utility model.
In figure: 1. case, 2. sealing gasket, 3. motor reducer, 4. gasket seal, 5. connecting rod, 6. plunger, 7. the pump housing, 8. automatic oil draining valve, 9. self sealing priming valve, 10. pressure regulator valve, 11. Manual air-release valves, 12. totally enclosed type solenoid directional control valves, 13. oil storage cylinders, 14. first y-type seal rings, 15. force feed pistons, 16. second y-type seal rings, 17. volute springs, 18. oil spilling one-way valves, 19. screws, 20. covers, 21. draw-off type low oil level signal-transmitting machines, 22. plunger bushings, 23. cone valves, 24. rectangular seals, 25. pressing plates, 26. cone valve guide waies, 27. springs, 28. screw plugs, 29. the one O type circles, 30. guiding valves, 31. spring seats, 32. pressure adjusting springs, 33. the 2nd O type circles, 34. valve bodies, 35. adjust swivel nut, 36. Cock screws, 37. oil outlets.
Embodiment
As shown in Figure 1, the semi-enclosed miniature electric grease pump of the present embodiment, comprises motor reducer 3, connecting rod 5, plunger 6 and the pump housing 7.The top of motor reducer 3 is with case 1 by sealing gasket 2 fit sealings, and its underpart attachment face is fixed on the pump housing 7 with screw by gasket seal 4, the passage entering to completely cut off external contamination thing.On the pump housing 7, dispose plunger bushing 22, automatic oil draining valve 8, pressure regulator valve 10, Manual air-release valves 11, totally enclosed type solenoid directional control valve 12, self sealing priming valve 9, oil storage cylinder 13, inner relevant oil duct is communicated with; Overflow one-way valve 18 is installed at the place, high oil level oil spilling hole of oil storage cylinder 13, on cover 20, is furnished with draw-off type low oil level signal-transmitting machine 21, inner chamber configuration force feed piston 15 and volute spring 17, top is fixed with the cover 20 of Spielpassung with screw 19, the first relative y-type seal ring 14 of position, lip limit and the second y-type seal ring 16 are housed on force feed piston 15.Above formed semi-enclosed miniature electric grease pump, gap between remaining cover 20 and screw 19 and oil storage cylinder 13 must be set up atmospheric passage as grease pump negative pressure oil-absorbing process, all the other all seal with the outside passage being communicated with, can reduce to greatest extent external contamination thing and invade the inside of grease pump, thereby improve the reliability of working under high pollution environment.
Before startup, with gasoline pump, by self sealing priming valve 9, in oil storage cylinder 13, add grease injection, grease enters the gap formation oil film between force feed piston 15 and oil storage cylinder 13 through the outer rim of the first y-type seal ring 14, to reduce force feed piston movement resistance.By the second y-type seal ring 16 outer rims, strut shutoff simultaneously, to prevent that grease from entering the epicoele of force feed piston 15, force feed piston 15 moves up under oiling pressure until place, high oil level oil spilling hole, grease and the air that may sneak into discharge through oil spilling one-way valve 18, and with visualization judgement, adding grease injection process should finish.Energising starts, and motor reducer 3, by connecting rod 5 drive plunger 6 to-and-fro motion, completes oil suction and oil extraction process, and from oil outlet 37 head pressure greases, totally enclosed type solenoid directional control valve 12 commutations simultaneously, close relief port.In oil-absorbing process, negative pressure that plunger cavity produces moves down force feed piston 15 under epicoele barometric pressure and volute spring 17 actings in conjunction, now by the first y-type seal ring 14 outer rims, strut sealing, even if enter pollutant in epicoele like this, also can effectively be isolated.During to low oil level, force feed piston 15 makes the draw-off type low oil level signal-transmitting machine 21 action senders that are attached thereto, and prompting is replenishment in time.When power-off, grease pump quits work, and totally enclosed type solenoid directional control valve 12 resets and commutates, and opens relief port, makes pressure chamber fast pressure relief, to meet the job requirement of unloading type lubrication system.
As shown in Figure 2, the present embodiment automatic oil draining valve 8 comprises cone valve 23, is inlaid in rectangular seal 24, pressing plate 25, spring 27 on cone valve conical surface, the end of cone valve 23 is pressed on the inner conical surface valve port of plunger bushing 22 by spring 27 by pressing plate 25, form hard sealing surface, rectangular seal 24 forms soft sealing face with the inner conical surface of plunger bushing 22.Formed double seal under the back pressure effect of oil-discharging cavity, can effectively improve sealability.The bar portion of cone valve 23 arranges cone valve guide way 26, in the hole of screw plug 28, can keep accuracy of action during to-and-fro motion, and resistance to shock is obviously improved.The runner of the oil extraction smoothness of the ring taper forming at valve port place, has also promoted remaining in the rinse capability of runner place pollutant, makes, in the environment of high pollution, also to have higher functional reliability.
As shown in Figure 3, in the present embodiment, pressure regulator valve 10 is plunger type cartridge valve, comprises an O type circle 29, guiding valve 30, spring seat 31, pressure adjusting spring 32, the 2nd O type circle 33, valve body 34, adjusts swivel nut 35, Cock screw 36.By adjusting, adjust the operating pressure of swivel nut 35, pressure adjusting spring 32 and guiding valve 30, and with Cock screw 36 lockings, when guiding valve 30 action, by valve body 34, make pressure channel be communicated with oil spilling with oil return, keep grease pump oil outlet pressure stability.Isolated pressure passage and drainback passage when the one O type circle 29 and the 2nd O type circle 33 are installed for cartridge valve.Owing to there being enough guiding length between guiding valve 30 and valve body 34, can keep stable action, to compare with steel ball type pressure regulator valve, its vibration resistance and stain resistance tool improve significantly.
Claims (4)
1. a semi-enclosed miniature electric grease pump, comprise motor reducer (3), connecting rod (5), plunger (6) and the pump housing (7), it is characterized in that: the top of described motor reducer (3) is with case (1) by sealing gasket (2) fit sealing, and its underpart attachment face is fixed on the pump housing (7) with screw by gasket seal (4); On the described pump housing (7), dispose plunger bushing (22), automatic oil draining valve (8), pressure regulator valve (10), Manual air-release valves (11), totally enclosed type solenoid directional control valve (12), self sealing priming valve (9), oil storage cylinder (13), inner relevant oil duct is communicated with; Overflow one-way valve (18) is installed at the place, high oil level oil spilling hole of described oil storage cylinder (13), on cover 20, is furnished with draw-off type low oil level signal-transmitting machine (21), inner chamber configuration force feed piston (15) and volute spring (17), top is fixed with the cover (20) of Spielpassung, and relative the first y-type seal ring (14) in position, lip limit and the second y-type seal ring (16) are housed on force feed piston (15).
2. semi-enclosed miniature electric grease pump according to claim 1, it is characterized in that: described automatic oil draining valve (8) comprises cone valve (23), is inlaid in rectangular seal (24), pressing plate (25), spring (27) on cone valve conical surface, the end of cone valve (23) is pressed on the inner conical surface valve port of plunger bushing (22) by spring (27) by pressing plate (25), form hard sealing surface, rectangular seal (24) forms soft sealing face with the inner conical surface of plunger bushing (22).
3. semi-enclosed miniature electric grease pump according to claim 2, is characterized in that: the bar portion of described cone valve (23) is provided with cone valve guide way (26).
4. according to the semi-enclosed miniature electric grease pump described in claim 1 or 2 or 3, it is characterized in that: described pressure regulator valve (10) is plunger type cartridge valve, comprise an O type circle (29), guiding valve (30), spring seat (31), pressure adjusting spring (32), the 2nd O type circle (33), valve body (34), adjust swivel nut (35), Cock screw (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420112936.9U CN203718352U (en) | 2014-03-13 | 2014-03-13 | Semi-closed micro electric grease pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420112936.9U CN203718352U (en) | 2014-03-13 | 2014-03-13 | Semi-closed micro electric grease pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718352U true CN203718352U (en) | 2014-07-16 |
Family
ID=51157501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420112936.9U Expired - Lifetime CN203718352U (en) | 2014-03-13 | 2014-03-13 | Semi-closed micro electric grease pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327601A (en) * | 2017-08-17 | 2017-11-07 | 湖南机油泵股份有限公司 | A kind of pressure limiting valve with position limiting structure |
-
2014
- 2014-03-13 CN CN201420112936.9U patent/CN203718352U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327601A (en) * | 2017-08-17 | 2017-11-07 | 湖南机油泵股份有限公司 | A kind of pressure limiting valve with position limiting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |