CN201778966U - Electromagnetic control variable plunger pump - Google Patents
Electromagnetic control variable plunger pump Download PDFInfo
- Publication number
- CN201778966U CN201778966U CN2009202876503U CN200920287650U CN201778966U CN 201778966 U CN201778966 U CN 201778966U CN 2009202876503 U CN2009202876503 U CN 2009202876503U CN 200920287650 U CN200920287650 U CN 200920287650U CN 201778966 U CN201778966 U CN 201778966U
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- Prior art keywords
- plunger
- valve
- case
- pump
- rod
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- 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
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- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model relates to an electromagnetic control variable plunger pump which comprises a pump casing (1), a valve plate (2), a valve cover (3), a crankshaft (4), a crankshaft connecting bar (5), an oscillating bar (8), a plurality of plunger cylinders (6) and an electromagnet device (7), wherein the crankshaft connecting bar (5) is hinged with the oscillating bar (8); the plunger cylinders (6) are arranged in a mode corresponding to the oscillating bar (8); a plunger rod (61) of each of the plunger cylinders(6) is connected with the oscillating bar (8) in a hinged mode through a connecting bar (9); an oil feeding check valve (a) and an oil discharging check valve (b) are arranged on the valve plate (2) at a position corresponding to each of the plunger cylinders (6); the oil feeding check valve (a) arranged on the valve cover (3) at a position corresponding to each of the plunger cylinders (6) is provided with the electromagnet device (7) for a valve to control whether the oil feeding check valve (a) is opened or not; and an oil feeding check valve of one or a plurality of plunger cylinders (6) is selected to control unloading through the electromagnet device (7) so as to change output flow rate. The electromagnetic control variable plunger pump is simple in structure, convenient in manufacture, long in service life, reliable in working, high in working pressure and large in flow rate.
Description
Technical field
The utility model relates to hydraulic parts, is a kind of Variable plunger pump.
Background technique
Variable plunger pump is extensive use in hydraulic pressure installation, and its basic principle is to realize changing output flow by the working stroke that changes plunger.It is a kind of dish flow-metering that Variable plunger pump is arranged now, it is by the plunger case and the adjustable sliding plate cooperating that is obliquely installed of one group of circle distribution, by the thrust plate flow, change the working stroke of adjusting plunger rod by the size of regulating the sliding plate angle of inclination, reach variable, its structure is complicated, accuracy of manufacturing requires high, the cost of production height, each plunger rod is worked with the sliding plate sliding friction under high-speed working condition, the easy friction damage of member requires height to oil, the working life that the quality of oil and turbidity test directly have a strong impact on variable displacement pump.
The model utility content
The purpose of this utility model provides a kind of long service life, and is simple in structure, easily manufactured, and cost of production is low, and anti-oily pollution capacity is strong, long service life, and the stable and reliable operation plunger type variable capacity pump promptly provides a kind of electromagnetic control variable plunger pump.
The utility model includes pump case 1, valve plate 2, valve gap 3, bent axle 4, crankshaft-link rod 5, some plunger cases 6, some electromagnet apparatus 7 of corresponding each plunger case, valve plate 2 is sealedly and fixedly connected with pump case 1, valve gap 3 is sealedly and fixedly connected with valve plate 2, be fixedly mounted on the valve plate 2 in pump case 1 inner prop plug cylinder 6 arranged distribution, crankshaft-link rod 5 is hinged with the fork 8 that is hinged on the pump case 1, the plunger rod 61 of the plunger case 6 of arranged distribution is articulated and connected by connecting rod 9 and fork 8 respectively, by bent axle 4, crankshaft-link rod 5, fork 8, connecting rod 9 drives the plunger rod 61 to-and-fro motion work of plunger case 6, on valve plate 2, corresponding each plunger case 6 offers in line check valve a and fuel-displaced one-way valve b, the in line check valve a of corresponding each plunger case 6 is provided with valve control electromagnet device 7 on valve gap 3, the push rod of electromagnet apparatus 7 matches with the valve rod of in line check valve a, whether control promotes the valve rod of in line check valve a and opens, in valve plate 2, offer oil road P with fuel-displaced one-way valve b oil outlet UNICOM, the valve gap 3 inner chamber C (being oil suction chamber) that are sealedly and fixedly connected with valve plate 2 offer the oil inlet hole that communicates with valve gap 3 inner chamber C with the in line check valve a UNICOM of each plunger case 6 on valve gap 3 or valve plate 2.
The utility model working principle process is; After driving bent axle 4 rotations, drive fork 8 swings by crankshaft-link rod 5, fork 8 drives the plunger rod 61 to-and-fro motion work of an organ timbering plug cylinder 6 simultaneously by the connecting rod 9 corresponding with plunger case 6, in line check valve a off-load by electromagnet apparatus 7 selection control certain or some plunger cases 6 realizes changing output flow.
The utility model is the complex mechanism of the change plunger stroke of existing Variable plunger pump not, the sliding plate that do not tilt, piston shoes and oil distribution casing sliding friction component, and it is little to wear and tear, simple in structure, good manufacturability, easily manufactured, requirement on machining accuracy is low, long service life, reliable operation, rate of fault is low, low to oil and turbidity test requirement, the working pressure height, flow is big, Variable Control is convenient, is particularly suitable for agricultural machinery and open-air engineering machinery and uses.
Description of drawings
Fig. 1 is the utility model example structure schematic representation.
Fig. 2 is that partial sectional view is looked on the left side of Fig. 1.
Fig. 3 is another example structure schematic representation of the utility model.
Fig. 4 is connecting rod 9 and fork 8 and plunger rod 61 linkage structure schematic representation.
Fig. 5 is a prior art Variable plunger pump structural representation.
Embodiment
The utility model includes pump case 1, valve plate 2, valve gap 3, bent axle 4, crankshaft-link rod 5, some plunger cases 6, some electromagnet apparatus 7 of corresponding each plunger case 6, valve plate 2 is sealedly and fixedly connected with pump case 1, valve gap 3 is sealedly and fixedly connected with valve plate 2, be fixedly mounted on the valve plate 2 in pump case 1 inner prop plug cylinder 6 arranged distribution, single or how bent bent axle 4 are installed in the pump case 1 by bearing means, each eccentric shaft of corresponding how bent bent axle 4 and pump case 1 are articulated and connected fork 8 are set in pump case 1, crankshaft-link rod 5 and fork 8 corresponding being articulated and connected, plunger case 6 corresponding fork 8 arranged distribution, the plunger rod 61 of each plunger case 6 is articulated and connected with fork 8 by its connecting rod 9 respectively, promptly realize by bent axle 4, crankshaft-link rod 5, fork 8, connecting rod 9 drives the plunger rod 61 to-and-fro motion work of plunger case 6, corresponding each plunger case 6 offers in line check valve a and fuel-displaced one-way valve b on valve plate 2, the in line check valve a of corresponding each plunger case 6 is provided with valve control electromagnet device 7 on valve gap 3, the push rod of electromagnet apparatus 7 matches with the valve rod of in line check valve a, whether control promotes the valve rod of in line check valve a and opens, in valve plate 2, offer oil road P with fuel-displaced one-way valve b oil outlet UNICOM, the pressure oil that each plunger case 6 is discharged is concentrated output, the valve gap 3 inner chamber C (oil suction chamber) that are sealedly and fixedly connected with valve plate 2 offer the oil inlet hole that communicates with valve gap 3 inner chamber C with the in line check valve a UNICOM fuel feeding of each plunger case 6 on valve gap 3 or valve plate 2.Shown in accompanying drawing 1 embodiment, offer the oil inlet hole 81 that communicates with pump case 1 inner chamber on valve plate 2, offer oil inlet hole T on pump case 1, it utilizes circulating of oil-feed that the mechanism arrangement in the pump case 1 is cooled off.
Shown in accompanying drawing 4 embodiments, the two ends of connecting rod 9 and fork 8 and plunger rod 61 are to adopt the bulb formula to be articulated and connected, and it is in light weight, and transmission is effective, can improve plunger case 6 force-bearing situations.
The plunger rod 61 working stroke differences of each plunger case 6 of the utility model, the cylinder diameter setting also can be different, select the in line check valve a off-load of control certain or some plunger cases 6 by electromagnet apparatus 7, promptly get when electric the electromagnet push-rod release when electromagnet, back down the valve core rod of in line check valve a, it can not be closed, and this moment, this plunger case can not pass through its fuel-displaced one-way valve b oil extraction, this plunger case off-load, do not work, realize changing output flow.Select suitable plunger case 6 off-loads with battle array prosecutor formula, just can obtain corresponding and flow change relatively stably.
Shown in accompanying drawing 3 embodiments, the utility model is a symplex structure, promptly the opposite side of bent axle 4 also is provided with the aforesaid valve plate 2 of a cover, valve gap 3, crankshaft-link rod 5, fork 8, some plunger cases 6 on pump case 1, the plunger pump device that electromagnet apparatus 7 constitutes, the oil outlet of two cover plunger pump-units can be in parallel.
Claims (4)
1. electromagnetic control variable plunger pump, it is characterized in that including pump case (1), valve plate (2), valve gap (3), bent axle (4), crankshaft-link rod (5), some plunger cases (6), some electromagnet apparatus (7) of corresponding each plunger case (6), valve plate (2) is sealedly and fixedly connected with pump case (1), valve gap (3) is sealedly and fixedly connected with valve plate (2), be fixedly mounted on the valve plate (2) in pump case (1) inner prop plug cylinder (6) arranged distribution, single or how bent bent axle (4) are installed in the pump case (1) by bearing means, each eccentric shaft of corresponding bent axle (4) and pump case (1) are articulated and connected fork (8) are set in pump case (1), crankshaft-link rod (5) and corresponding being articulated and connected of fork (8), the corresponding fork of plunger case (6) (8) arranged distribution, the plunger rod (61) of each plunger case (6) is articulated and connected by its connecting rod (9) and fork (8) respectively, go up corresponding each plunger case (6) at valve plate (2) and offer in line check valve (a) and fuel-displaced one-way valve (b), the in line check valve (a) of going up corresponding each plunger case (6) at valve gap (3) is provided with valve control electromagnet device (7), the push rod of electromagnet apparatus (7) matches with the valve rod of in line check valve (a), whether control promotes the valve rod of in line check valve (a) and opens, in valve plate (2), offer oil road (P) with fuel-displaced one-way valve (b) oil outlet UNICOM, valve gap (3) inner chamber (C) offers the oil inlet hole that communicates with valve gap (3) inner chamber (C) with in line check valve (a) the UNICOM fuel feeding of each plunger case (6) on valve gap (3) or valve plate (2).
2. electromagnetic control variable plunger pump according to claim 1 is characterized in that offering the oil inlet hole (81) that communicates with pump case (1) inner chamber on valve plate (2), offers oil inlet hole (T) on pump case (1).
3. electromagnetic control variable plunger pump according to claim 1 is characterized in that the two ends of connecting rod (9) and fork (8) and plunger rod (61) are to adopt the bulb formula to be articulated and connected.
4. according to claim 1 or 2 or 3 described electromagnetic control variable plunger pumps, it is characterized in that also being provided with a cover valve plate (2), valve gap (3), crankshaft-link rod (5), fork (8), some plunger cases (6) at pump case (1) bent axle (4) opposite side, the plunger pump device that electromagnet apparatus (7) constitutes, promptly form symplex structure, the oil outlet of two cover plunger pump-units can be in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202876503U CN201778966U (en) | 2009-12-10 | 2009-12-10 | Electromagnetic control variable plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202876503U CN201778966U (en) | 2009-12-10 | 2009-12-10 | Electromagnetic control variable plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778966U true CN201778966U (en) | 2011-03-30 |
Family
ID=43792178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202876503U Expired - Fee Related CN201778966U (en) | 2009-12-10 | 2009-12-10 | Electromagnetic control variable plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067722A (en) * | 2018-05-22 | 2019-07-30 | 钟彪 | A kind of plane hydrostatic support sliding plate auxiliary structure and swash plate plunger pump or motor comprising the structure |
-
2009
- 2009-12-10 CN CN2009202876503U patent/CN201778966U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067722A (en) * | 2018-05-22 | 2019-07-30 | 钟彪 | A kind of plane hydrostatic support sliding plate auxiliary structure and swash plate plunger pump or motor comprising the structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20131210 |