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 PDF

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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
reciprocating pump
live axle
regulating
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
Application number
CN201420288383.2U
Other languages
Chinese (zh)
Inventor
朱文琪
胡春梅
张金珉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHINA SINOPEC ZHONGYUAN PETROLEUM EXPLORATION BUREAU TRAINING CT
China Petrochemical Corp
Original Assignee
CHINA SINOPEC ZHONGYUAN PETROLEUM EXPLORATION BUREAU TRAINING CT
China Petrochemical Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHINA SINOPEC ZHONGYUAN PETROLEUM EXPLORATION BUREAU TRAINING CT, China Petrochemical Corp filed Critical CHINA SINOPEC ZHONGYUAN PETROLEUM EXPLORATION BUREAU TRAINING CT
Priority to CN201420288383.2U priority Critical patent/CN203925968U/en
Application granted granted Critical
Publication of CN203925968U publication Critical patent/CN203925968U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of power end of adjustable displacement plunger reciprocating pump
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.
CN201420288383.2U 2014-05-30 2014-05-30 A kind of power end of adjustable displacement plunger reciprocating pump Expired - Fee Related CN203925968U (en)

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 (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
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