CN203925968U - A kind of power end of adjustable displacement plunger reciprocating pump - Google Patents
A kind of power end of adjustable displacement plunger reciprocating pump Download PDFInfo
- Publication number
- CN203925968U CN203925968U CN201420288383.2U CN201420288383U CN203925968U CN 203925968 U CN203925968 U CN 203925968U CN 201420288383 U CN201420288383 U CN 201420288383U CN 203925968 U CN203925968 U CN 203925968U
- Authority
- CN
- China
- Prior art keywords
- crankwheel
- power end
- reciprocating pump
- live axle
- plunger reciprocating
- 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
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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a kind of power end of adjustable displacement plunger reciprocating pump.Formed by crankwheel, bearing, live axle, connecting rod.Crankwheel is disc-shape, is arranged in connecting rod by bearing, has an oblong aperture on crankwheel, and live axle is arranged in the oblong aperture of crankwheel by locking and regulating device.The utility model relates to the power end structure by changing existing plunger reciprocating pump, change the bent axle in power end into crankwheel structure, by the offset of locking and regulating device capable of regulating crankwheel and live axle, thereby the stroke of pilot plunger, adjust the discharge capacity of each cylinder, when the discharge capacity that realizes the many exhaust ports of multi-cylinder regulates, can also effectively reduce and manufacture and maintenance cost.
Description
Technical field:
The utility model relates to a kind of power end of adjustable displacement plunger reciprocating pump, is particularly useful for the power end technical field of the plunger reciprocating pump of oil field injection operating mode multioutlet adjustable displacement.
Background technique:
Though existing plunger reciprocating pump can change by changing plunger diameter, pump stroke and pump speed the output discharge capacity of pump, has following problem: the one, change plunger diameter operation inconvenience; The 2nd, change plunger stroke and adjust pump delivery, although degree of regulation is higher, power end complex structure; The 3rd, change pump speed adjustment pump delivery is only applicable to the situation of an exhaust port of a reciprocating pump.For many exhaust ports of multi-cylinder reciprocating pump, if require the discharge capacity of each independent exhaust port all adjustable, existing plunger reciprocating pump does not reach above-mentioned requirements.
For above-mentioned situation, having at present patent publication No. is a kind of plunger reciprocating pump of CN201865903U and a kind of flow regulator that changes plunger volume that patent publication No. is CN103267012A, although can realize the discharge capacity of the many exhaust ports of multi-cylinder regulates, but there is several aspects problem: the one, fluid end structure complexity, inconvenient maintenance, cost are high; The 2nd, increase motive sealing leakage point, easily reveal; The 3rd, increase by one group of packing, increase surface friction drag, increase energy consumption; The 4th, spring fatiguability damages, and increases repairing work load and termination of pumping time.
Summary of the invention:
In view of above-mentioned deficiency, the utility model provides a kind of adjustable displacement reciprocal pump power end structure, when the discharge capacity that realizes the many exhaust ports of multi-cylinder regulates, can also effectively reduce and manufacture and maintenance cost.
The utility model is achieved through the following technical solutions:
The utility model is a kind of power end of adjustable displacement plunger reciprocating pump, formed by crankwheel, bearing, live axle, connecting rod, it is characterized in that: crankwheel is disc-shape, be arranged in connecting rod by bearing, on crankwheel, have an oblong aperture, live axle is arranged on by locking and regulating device in the oblong aperture of crankwheel; Oblong aperture on crankwheel is eccentric opening.
Locking and regulating device is made up of adjusting screw rod and adjusting nut, and adjusting screw rod is vertically plugged on live axle, and two ends are adjusting nut.
Locking and regulating device is made up of adjusting screw rod and fixed plate, has the screw being communicated with its oblong aperture on crankwheel, and screw is provided with adjusting screw rod, and adjusting screw rod connects as one by fixed plate and live axle bolt.
The beneficial effects of the utility model are:
1, by changing the power end structure of existing plunger reciprocating pump, change the bent axle in power end into crankwheel structure, not only reduced manufacture cost, and simple in structure, and operation and maintenance is convenient.
2, discharge capacity adjustment range is large, can in 0～100% scope, regulate, and fully meets the injection requirement on different pressures stratum.
3, applicable to multicylinder plunger reciprocating pump, each cylinder can be adjusted separately discharge capacity, separately output.Be particularly suitable for the discharge capacity output of the pump various working in oil field.
Brief description of the drawings:
Fig. 1 is model utility embodiment 1 structural representation.
Fig. 2 is the axial section that crankwheel coordinates with live axle.
Fig. 3 is model utility embodiment 2 structural representations.
Fig. 4 is adjusting screw rod and fixed plate and live axle connection enlarged view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1, and as shown in Figure 1, the utility model is made up of crankwheel 1, bearing 2, live axle 5, connecting rod 6.Crankwheel 1 is disc-shape, is arranged in connecting rod 6 by bearing 2, has an oblong aperture 1-1 on crankwheel 1, and live axle 5 is arranged in the oblong aperture 1-1 of crankwheel 1 by locking and regulating device.
Oblong aperture 1-1 on crankwheel 1 is eccentric opening.
From Fig. 1 and Fig. 2, locking and regulating device is made up of adjusting screw rod 3 and adjusting nut 4, and adjusting screw rod 3 is vertically plugged on live axle 5, and two ends are adjusting nut 4.By adjusting nut 4 positions of capable of regulating live axle 5 in the oblong aperture 1-1 of crankwheel 1, i.e. the offset of capable of regulating crankwheel 1 and live axle 5, the stroke of pilot plunger, adjusts the discharge capacity of each cylinder, meets the demand of the different displacements on different pressures stratum.
Embodiment 2, as shown in Figure 3, locking and regulating device is made up of adjusting screw rod 10 and fixed plate 11, has the screw 1-2 being communicated with its oblong aperture 1-1 on crankwheel 1, screw 1-2 is provided with adjusting screw rod 10, and adjusting screw rod 10 connects as one by fixed plate 11 and live axle 5 bolts.By rotating adjusting screw rod 10, i.e. the offset of capable of regulating crankwheel 1 and live axle 5, the stroke of pilot plunger, thus adjust the discharge capacity of each cylinder, fully meet the injection requirement on different pressures stratum.
The utility model is that crankwheel 1 drivening rod 6 moves by live axle 5 driving crank wheel 1 rotations, and connecting rod 6 drives crosshead 8 and connecting rod 9 to do linear reciprocating motion by crosshead pin 7.By the offset of locking and regulating device capable of regulating crankwheel 1 and live axle 5, thereby the stroke of pilot plunger is adjusted the discharge capacity of each cylinder, meets the needs of the different displacements on different pressures stratum.
Claims (4)
1. the power end of an adjustable displacement plunger reciprocating pump, formed by crankwheel (1), bearing (2), live axle (5), connecting rod (6), it is characterized in that: crankwheel (1) is disc-shape, be arranged in connecting rod (6) by bearing (2), on crankwheel (1), have an oblong aperture (1-1), live axle (5) is arranged in the oblong aperture (1-1) of crankwheel (1) by locking and regulating device.
2. the power end of a kind of adjustable displacement plunger reciprocating pump according to claim 1, is characterized in that: the oblong aperture (1-1) on crankwheel (1) is eccentric opening.
3. the power end of a kind of adjustable displacement plunger reciprocating pump according to claim 1 and 2, it is characterized in that: locking and regulating device is made up of adjusting screw rod (3) and adjusting nut (4), it is upper that adjusting screw rod (3) is vertically plugged on live axle (5), and two ends are adjusting nut (4).
4. the power end of a kind of adjustable displacement plunger reciprocating pump according to claim 1 and 2, it is characterized in that: locking and regulating device is made up of adjusting screw rod (10) and fixed plate (11), on crankwheel (1), have the screw being communicated with its oblong aperture (1-1), screw (1-2) is provided with adjusting screw rod (10), and adjusting screw rod (10) connects as one by fixed plate (11) and live axle (5) bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288383.2U CN203925968U (en) | 2014-05-30 | 2014-05-30 | A kind of power end of adjustable displacement plunger reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288383.2U CN203925968U (en) | 2014-05-30 | 2014-05-30 | A kind of power end of adjustable displacement plunger reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925968U true CN203925968U (en) | 2014-11-05 |
Family
ID=51821788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420288383.2U Expired - Fee Related CN203925968U (en) | 2014-05-30 | 2014-05-30 | A kind of power end of adjustable displacement plunger reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925968U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014961A (en) * | 2016-07-13 | 2016-10-12 | 禾通科技公司 | Plunger type water supply pump for building |
| CN113187691A (en) * | 2021-04-20 | 2021-07-30 | 江苏富鑫机械制造有限公司 | Plunger pump embedded split pump |
-
2014
- 2014-05-30 CN CN201420288383.2U patent/CN203925968U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014961A (en) * | 2016-07-13 | 2016-10-12 | 禾通科技公司 | Plunger type water supply pump for building |
| CN113187691A (en) * | 2021-04-20 | 2021-07-30 | 江苏富鑫机械制造有限公司 | Plunger pump embedded split pump |
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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: 20141105 Termination date: 20160530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |