CN107989579A - A kind of vertical plunger oil-well pump power end of latent well formula multi-cylinder - Google Patents
A kind of vertical plunger oil-well pump power end of latent well formula multi-cylinder Download PDFInfo
- Publication number
- CN107989579A CN107989579A CN201711442401.2A CN201711442401A CN107989579A CN 107989579 A CN107989579 A CN 107989579A CN 201711442401 A CN201711442401 A CN 201711442401A CN 107989579 A CN107989579 A CN 107989579A
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- camshaft
- plunger
- well
- pump
- oil
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- 239000003129 oil well Substances 0.000 title claims abstract description 29
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 23
- 238000005086 pumping Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- 238000010079 rubber tapping Methods 0.000 description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/128—Adaptation of pump systems with down-hole electric drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of latent vertical plunger oil-well pump power end of well formula multi-cylinder, including power source, the pump housing, bracket and camshaft, bearing assembly and withdrawing device in the pump housing, during use, when submersible motor, which rotates, drives camshaft rotation, the slope driving fluid end stopper head of camshaft slides in camshaft inclined-plane toroidal cavity, and move back and forth, so that constantly oil be discharged by drain pipe.This power end can realize that rotation is integrated with reciprocalfunction, so make entirely pump efficiency of pump raising, energy consumption, cost reduction with the fluid end integrated design of oil well pump, dismantle technique simply, conveniently, long lifespan, be particularly suitable for stripper well and pump operating mode.
Description
Technical field
The present invention relates to pump technical field, refers specifically to a kind of vertical plunger oil-well pump power end of latent well formula multi-cylinder, to solve
The intrinsic pumping unit of tradition is low with the oil pumping efficiency of pump, energy consumption is high, does not possess the technical problem of stripper well oil pumping function.
Background technology
Oil pump has been widely used in oil extraction in oil field technique, and oil pump is various in style, is generally divided into ground
Face pumping unit (being also kowtowing machine), hydraulic piston pump, subsurface progressive cavity, centrifugal pump etc..Although existing various oil pumps
The production technology and operation principle of use differ, but insufficient below generally existing：Equipment is huge, oil recovery power consumption is big, efficiency
Low (generally below 30%), short life.
Due to deep hundred meters of oil well even km, oil well pump maintenance carries well, and once upper and lower enormous costs are big, once need
Ten thousand or tens of thousands of members, cause cost of use height.Pumping unit is also one of the reason for causing oil field power consumption big, of high cost.At present, state
Inside and outside pumping unit (kowtowing machine) being most widely used and most traditional, such oil well pump market demand is maximum, but such is taken out
Oil pump is not appropriate for stripper well oil pumping, its sucker rod is easily lost, and it is several ten million tons that oil field at home sucker rod year, which consumes quantity, is thus produced
Raw wear and tear expense number is surprising.
Under above-mentioned overall situation, oil field upgrading synergy, green, innovation are the work slogans of numerous oil workers, and oil pumping is set
Standby Great Revolution is being unfolded, and serious hope substitution traditional pumping unit cry in oil field is very big, and stripper well waits for pumping of new generation
The birth of oily equipment.
The content of the invention
The technical problem to be solved by the invention for the present situation of prior art is to provide one kind is efficient, energy consumption is low, tears open
Unload technique it is simple, conveniently, the vertical plunger oil-well pump power end of latent well formula multi-cylinder of long lifespan, and the oil well pump power end can be realized
With the integrated design of the fluid end of oil well pump, meet stripper well oil pumping operating mode design requirement.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of latent vertical plunger oil-well pump of well formula multi-cylinder
Power end, including power source, the pump housing, it is characterized in that having further included camshaft and withdrawing device, the camshaft can rotationally be set
In the pump housing, the camshaft lower end edge pump housing is extended axially downward and is connected with power source；The top of the camshaft is
End face is in the cam structure on inclined-plane, and the inclined-plane of camshaft is equipped with matched with the spherical surface body head of the plunger of fluid end
Toroidal cavity, groove shapes are the sphere to match with the spherical surface body head of the plunger；The withdrawing device is connected to
Between the plunger of the fluid end and the camshaft, the spherical surface body head for making each plunger by the withdrawing device is revolved in camshaft
Turn to drive each plunger to make upper and lower reciprocating motion under state, the plunger of the fluid end is at least two.
Preferably, the pump housing is cylinder.
Preferably, the withdrawing device, which includes one, is arranged on disk of pulling back above camshaft inclined-plane, disk of pulling back it is outer
Be configured on perisporium with plunger it is cylindrical on the spherical groove that matches of spherical male round platform, the spherical groove and plunger pulled back on disk
On spherical male round platform form friction pair and camshaft synchronous rotary.
The withdrawing device further includes one and is located at the support block pulled back between disk and camshaft, and the lower part of support block is determined
In the cavity among the inclined-plane of camshaft, top is in convex spherical and is located at the concave ball surfaces for tray bottom of pulling back with synthesis one for position
To sphere sliding pair；Described pull back disk and support block it is central axial be equipped with corresponding bolt hole make they by bolt with it is convex
Wheel shaft is fixed together.
Further, the bottom of the pump housing is also sealedly connected with a cylindrical bracket, and the bottom of bracket is equipped with bottom end cover,
Perforate of the submersible motor output shaft of the power source through bottom end cover links into an integrated entity with internal camshaft.So by power source
Link into an integrated entity with power end.
Preferably, the camshaft is the multi-diameter shaft of the multiple steps of tool, including position below the cam structure on top
Middle part between pump housing shoulder and bracket appear on the stage terrace, and the lower part between bracket leave from office terrace and sealing cover, its
Middle part is mainly by the secondary rotatable setting of bearing holder (housing, cover), major and minor sliding bearing and principal plane roller, and the centre of bearing holder (housing, cover) is set
There is trapped fuel pond, lower part mainly with submersible motor is exported by the secondary rotatable setting of secondary plane roller and by coupling band and key realization
The connection of axis.
Preferably, the major and minor plane roller pair is free of retainer, be by upper cover, lower cover and be distributed in,
The roller combination of the inside of spherical groove of lower cover is formed.
Compared with prior art, the advantage of the invention is that：Possesses stripper well oil pumping function the present invention provides a kind of
The vertical plunger oil-well pump power end of latent well formula multi-cylinder, when submersible motor, which rotates, drives camshaft rotation, the inclined-plane of camshaft pushes away
Hydrodynamic power newel post's chock plug slides in camshaft inclined-plane toroidal cavity, and moves back and forth, so that oil constantly is passed through row
Liquid pipe is discharged.This power end can realize that rotation is integrated with reciprocalfunction with the fluid end integrated design of oil well pump, this
Sample makes entirely pump efficiency of pump raising, energy consumption, cost reduction, dismounting technique is simple, conveniently, long lifespan, be particularly suitable for stripper well
Oil pumping operating mode.
Brief description of the drawings
Fig. 1 is the structure diagram of oil well pump of the embodiment of the present invention；
Fig. 2 is the structure diagram of fluid end in Fig. 1；
Fig. 3 is the structure diagram of power end in Fig. 1；
Fig. 4 is the profile of middle pump body of the embodiment of the present invention；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the structure diagram of camshaft in the embodiment of the present invention；
Fig. 7 is the structure diagram of disk of pulling back in the embodiment of the present invention；
Fig. 8 is the structure diagram of contiguous block in the embodiment of the present invention；
Fig. 9 is the structure diagram of ball stud in the embodiment of the present invention；
Figure 10 is the structure diagram of stopper head in the embodiment of the present invention；
Figure 11 is the structure diagram of combination valve in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
What is illustrated in the present embodiment figure is the structure for being equiped with the overall oil well pump according to power end of the present invention.
As shown in Fig. 1~11, the latent vertical plunger oil-well pump of well formula multi-cylinder of the present embodiment includes the pump housing 1 and arranged on the pump housing 1
In fluid end a, power end b, the pump housing 1 for cylinder, power end b to drive fluid end a run.The pump housing 1 by fluid end a and
Power end b becomes one, and fluid end a is arranged on the upper of the pump housing 1, and power end b is arranged on the bottom of the pump housing 1.
In the present embodiment, fluid end a includes combination valve 2 and plunger 3, and the fluid end a of the present embodiment is triplex structure, i.e.,
Combination valve 2 is three, and certainly, the quantity of combination valve 2 can also select to use according to the size of oil well tubing and casing in actual use
Two cylinder, five cylinders, six cylinders or more cylinder.Each combination valve 2 is circumferential to be distributed in 2 valve chamber 10 of each combination valve on 1 top of the pump housing, and often
The admission chamber 22 of one combination valve 2 is corresponding with an inlet 21 being located on 1 side wall of the pump housing, and each inlet 21 is through each corresponding
Combination valve 2 admission chamber 22 and exhaust chamber 23 penetrate through the concentration runner 12 being located among the pump housing 1 so that medium is flowed through concentrating
Road 12 and the drain pipe 13 being connected on outside on the leakage fluid dram of 1 crown center of the pump housing discharge ground.Plunger 3 can be arranged on each up or down
The lower section of combination valve 2 simultaneously provides feed liquor for corresponding combination valve 2 and goes out hydraulic power.The lower section of each combination valve 2 is corresponding with one
Plunger 3, each plunger 3 can be arranged in respective 3 passage of plunger up or down by kinetic hermetic subassembly, and each plunger 3 is logical
Road is corresponded in 2 valve chamber 10 of combination valve and penetrated through.Each plunger 3 is designed to spherical surface body head 31 with respect to one end of power end b.
In the present embodiment, combination valve 2 using liquid feed valve under, tapping valve upper into, tapping valve integrated design, group
Valve 2 is closed by valve body 20, upper and lower spool 23a, 23b, upper and lower spherical limiting valve bonnet 21a, 21b, upper and lower spring 22a, 22b etc.
Composition.Valve body 20 is arranged on the top of the pump housing 1 by silently 14, and valve body 20 is integrally set using feed liquor valve base with discharge opeing valve base
Meter；Upper and lower spool 23a, 23b structure is identical, is respectively provided on the upper lower valve port of valve body, and to misplace, 180 degree is arranged up and down,
Upper and lower spool 23a, 23b are using the hemisphere valve core structure that rotation can be achieved.Upper and lower spherical limiting valve bonnet 21a, 21b are respectively provided at
Two of valve body, upper and lower spool 23a, 23b is covered in corresponding spacing valve bonnet, upper and lower spool 23a, 23b can be in correspondences
Spherical limiting valve bonnet in sliding up and down, and spherical limiting point 211 is respectively equipped with upper and lower spherical limiting valve bonnet, and in sphere
The outer of limit point sets step to be positioned for spring 22a, 22b.Upper and lower spring 22a, 22b are respectively provided at spherical limiting valve
Between cover and 21a upper valve cores 23a, and between lower peripheral surface spacing valve bonnet 21b and bottom spool 23b, the both ends point of spring 22a, 22b
It is not positioned in the R shapes groove of spool end and on the step of 211 outer of spherical limiting point.This combination valve 2 works as hemisphere spool up
Movement, when the spherical limiting point 211 on valve bonnet is run into end face, spool is to tilt to the active force of spring by sphere as extremely at this time,
This just allow hemisphere spool ball valve face change position after fall on valve seat valve face, formation freely replaces sealing.Each combination valve 2
Admission chamber is formed after carrying out upper-lower seal by valve chamber in the pump housing 1, and exhaust chamber is to be located at the upper surface of each combination valve 2 simultaneously
Communicated with the concentration runner 12 of valve body crown center.It is spool as a result of hemisphere, alleviates spool dead weight and be conducive to
Spool reduces hysteresis, closes improve efficiency and valve face service life in time.
For the ease of assembling, plunger 3 passes through mutual outer, interior spiral shell by the plunger body 33 on top and the stopper head 34 of lower part
Line connection is integral, and stopper head 34 is equipped with spherical male round platform 32 and spherical surface body head 31, each plunger body 33 by one group by
The motion seal part that major and minor guide sleeve 36 is formed and the locating ring 35 positioned at motion seal part upper end are positioned at respective plunger and lead to
In road.And be screwed in for ease of plunger body 33 on stopper head 34, an assistance mounting hole is also provided with pump housing side wall.
The power end b of the present embodiment includes camshaft 4 and withdrawing device c, and camshaft 4 can be rotatably arranged in the pump housing 1 simultaneously
Positioned at the lower section of plunger 3.The 4 lower end edge pump housing 1 of camshaft is extended axially downward and is connected with the power source 8 of lower section, the present embodiment
In power source 8 be motor arranged on the lower section of the pump housing 1.The top of camshaft 4 is the cam structure 40 that end face is in inclined-plane 41, and
Inclined-plane 41 is equipped with a toroidal cavity 411, and 411 shape of groove is the sphere to match with the spherical surface body head 31 of each plunger 3.
Inclined-plane 41 on camshaft 4 from 0 to one a stroke height can 360 degree trackslip, match stroke height needed for plunger 3.Each plunger 3 with
It is connected between camshaft 4 by withdrawing device c, the spherical surface body head 31 of each plunger 3 is slidably disposed on toroidal cavity
In 411, and the spherical surface body head 31 of each plunger 3 is set to drive each plunger 3 under 4 rotation status of camshaft by withdrawing device c
Reciprocating motion above and below making.
Specifically, withdrawing device c includes a disk 5 of pulling back for being arranged on top in the middle part of 4 inclined-plane of camshaft, disk 5 of pulling back it is outer
Spherical groove 51 is formed with perisporium, accordingly plunger 3 it is cylindrical on be formed with it is matched spherical with spherical groove 51
Dome platform 32, spherical male round platform 32 and the spherical groove 51 pulled back on disk 5 form friction pair and 4 synchronous rotary of camshaft.
Spherical surface body head 31 on plunger 3 is arranged on below spherical male round platform 32.For the ease of connection, withdrawing device c is further included
There is one to be located at the support block 6 pulled back between disk 5 and camshaft 4, the lower part of support block 6 is positioned among the inclined-plane 41 of camshaft 4
Cavity 412 in, the top of support block 6 is in convex spherical 61, and the concave ball surfaces 52 with being located at 5 bottom of disk of pulling back coordinate in a pair
Sphere sliding pair.The central axial of disk 5 and the support block 6 of pulling back is equipped with corresponding bolt hole 50,62 and them is passed through ball stud
100 are fixed together with camshaft 4, and the upper plane for 5 bolt hole 50 of disk of pulling back is spill hemisphere face, to coordinate ball stud
100。
The bottom of the pump housing 1 is also sealedly connected with a cylindrical bracket 7, and the bottom of bracket 7 is equipped with sealing cover 71, power source 8
The sealed lid 71 of submersible motor output shaft 81 perforate and inside camshaft 4 link into an integrated entity.The top edge of the bracket 7 with
The bottom margin of the pump housing 1 is welded in the case where assembling completion status, so that power end b and fluid end a be become one.Cam
Axis 4 is the multi-diameter shaft of the multiple steps of tool below the cam structure on top, including positioned at 1 shoulder of the pump housing and 7 top bar of bracket
Middle part 42 between face, and the lower part 43 between 7 leave from office terrace of bracket and bottom end cover 71, wherein, middle part 42 mainly leads to
Bearing holder (housing, cover) 91, main sliding bearing 92, secondary sliding bearing 93 and principal plane roller pair 94 is crossed rotatably to set, and bearing holder (housing, cover) 91
Centre is equipped with trapped fuel pond 911, and lower part is mainly rotatably set by secondary plane roller pair 95 and realized by coupling band 96 and key
With the connection of submersible motor output shaft 81.
Specifically, main sliding bearing 92 is disposed upon in the endoporus of bearing holder (housing, cover) 91, which is firmly to hard with camshaft 4
Rub furan, and main function is the radial force for eliminating camshaft 4.Bearing holder (housing, cover) 91 controls radially, axially power for camshaft 4, it pacifies
Put and be positioned between principal plane roller pair 94 and bracket 7, thereon end face placement principal plane roller pair 94, the main sliding axle of bore placement
Hold 92, lower face is positioned by the terrace of appearing on the stage of bracket 7, secondary sliding bearing 93 is disposed in the endoporus of lower face, centre is trapped fuel pond
911.Secondary sliding bearing 93 is with camshaft for firmly to hard friction pair, the main radial force for eliminating camshaft 4 and main sliding bearing
92 carry on a shoulder pole radial load altogether.The effect of major and minor plane roller pair 94,95 is can to eliminate play above and below the axial force and control of camshaft,
The major and minor plane roller pair 94,95 is free of retainer, is made of the upper and lower cover and roller of split, upper cover plane is close to cam
On the step lower plane (baseplane of cam structure) of axis, mediate roller be placed in upper cover, lower cover spherical groove in, if placement
Untill a dry roller is piled, mutual gap, secondary 95 positioning of plane roller pair is attached on the leave from office terrace of bracket 7, and lower cover is by locking
Baffle ring and spelling cap 97 position, with 4 corotation of camshaft.Bottom end cover 71 is equipped with locating shoulder and the lower face shoulder of the pump housing coordinates,
Both are fixed with bolt.Sealing ring is installed in the endoporus of bottom end cover 71 and forms friction pair with coupling band 96, control lubricating oil is past
Leaked in medium, the terminal surface of bottom end cover 71 is also equipped with locating shoulder, for disposing submersible motor 8.4 most end end mill of camshaft
The output axis connection for having keyway and submersible motor 8 forms a rotating motion part.Camshaft 4 is installed by said structure, effectively
Axial force and radial load are eliminated, reaches the conveying requirement for meeting oil into medium solid-liquid two-phase.
By the pump housing 1 (designing pump housing outside diameter by oil jacket pipe orifice 5 ", 6 "), bracket 7 and silently 14, bottom end cover 71 forms
The cylindrical shell of this oil well pump, enclosure set fluid end, power end, and the upper connection tapping line of shell, bottom is even
Submersible motor is connect, is consequently formed rotation and the integrated latent oil oil well pump of reciprocalfunction of the present invention.
The operation principle of this oil well pump approximately as：
Whole pump goes into the well to fix proposes positioning work by drain pipe, and oil well pump works in suitable liquid level, submersible motor
In the bottom of pump, cable is connected against the outside diameter gap of pump toward the extraction of well face by control room.Put down when submersible motor rotation drives
When face cam axis rotates, the slope driving stopper head of plane cam axis slides in camshaft inclined-plane toroidal cavity, and carries out
Move back and forth.That is the camshaft 4 of power end b is rotated by power source 8, the column that fluid end a lower parts are connected with inclined-plane 41
Plug 3 rises and falls under the rotation on inclined-plane 41 with inclined-plane 41, i.e., when position higher on inclined-plane 41 and 3 lower end of plunger offset, plunger 3
High point is moved up to, when position relatively low on inclined-plane 41 offsets with 3 lower end of plunger, plunger 3 moves downwardly to low spot, so that
Each plunger 3 is set alternately to pump.The three-cylinder plunger pump of the present embodiment, every 120 degree of plungers 3 ibid move ahead once,
The acting of first cylinder plug is to preceding dead point, and the second cylinder plug on 50% move ahead, pulled back after disk retracts and move back only by the 3rd cylinder plug
Dead point, when plunger moves ahead, liquid feed valve is closed, tapping valve opens liquid discharge, and iterative cycles are to reach piston reciprocation, valve opens and closes
Feed liquor, discharge opeing effect, and the medium that each cylinder is discharged through tapping valve after the concentration runner among the pump housing by entering the row on end face
Liquid pipe line discharges ground.The continuous continuous operation of so each combination valve 2, substantially increases pumping efficiency.
Claims (7)
1. a kind of vertical plunger oil-well pump power end of latent well formula multi-cylinder, including power source, the pump housing, it is characterised in that：Further include
Camshaft and withdrawing device, the camshaft can be rotatably arranged in the pump housing, and the camshaft lower end edge pump housing axially downwardly prolongs
Stretch and be connected with power source；The top of the camshaft is the cam structure that end face is in inclined-plane, and on the inclined-plane of camshaft
The matched toroidal cavity in spherical surface body head equipped with each plunger with fluid end, groove shapes are the sphere with the plunger
The sphere that body head matches；The withdrawing device is connected between each plunger of the fluid end and the camshaft, is led to
Crossing the withdrawing device makes the spherical surface body head of each plunger drive each plunger to make upper and lower reciprocating motion under camshaft rotation status.
2. the vertical plunger oil-well pump power end of latent well formula multi-cylinder according to claim 1, it is characterised in that：The pump housing
For cylinder.
3. the vertical plunger oil-well pump power end of latent well formula multi-cylinder according to claim 1, it is characterised in that：Described pulls back
Device includes one and is arranged on disk of pulling back above camshaft inclined-plane, be configured on the periphery wall for disk of pulling back with plunger it is cylindrical on ball
The spherical groove that shape dome platform matches, the spherical male round platform on the spherical groove and plunger pulled back on disk form friction pair
With camshaft synchronous rotary.
4. the vertical plunger oil-well pump power end of latent well formula multi-cylinder according to claim 3, it is characterised in that：Described pulls back
Device further includes one and is located at the support block pulled back between disk and camshaft, and the lower part of support block is positioned in the inclined-plane of camshaft
Between cavity in, top is in convex spherical and is located at the concave ball surfaces of tray bottom of pulling back and coordinates sphere sliding pair in a pair；It is described
The central axial of pull back disk and support block be equipped with corresponding bolt hole and them is fixed together by bolt and camshaft.
5. the vertical plunger oil-well pump power end of latent well formula multi-cylinder according to any claim in Claims 1 to 4, it is special
Sign is：The bottom of the pump housing is also sealedly connected with a cylindrical bracket, and the bottom of bracket is equipped with bottom end cover, the power source
Perforate of the submersible motor output shaft through bottom end cover and the camshaft of inside link into an integrated entity.
6. the vertical plunger oil-well pump power end of latent well formula multi-cylinder according to claim 5, it is characterised in that：The cam
Axis is the multi-diameter shaft of the multiple steps of tool below the cam structure on top, including positioned at pump housing shoulder and bracket appear on the stage terrace it
Between middle part, and the lower part between bracket leave from office terrace and sealing cover, wherein middle part is mainly by bearing holder (housing, cover), major and minor
Sliding bearing and the secondary rotatable setting of principal plane roller, and the centre of bearing holder (housing, cover) is equipped with trapped fuel pond, lower part is mainly flat by pair
Roller secondary rotatable setting in face simultaneously realizes the connection with submersible motor output shaft by coupling band and key.
7. the vertical plunger oil-well pump power end of latent well formula multi-cylinder according to claim 6, it is characterised in that：The master,
Secondary plane roller pair is free of retainer, be by upper cover, lower cover and be distributed in upper and lower cover inside of spherical groove set of rollers
Close and form.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442401.2A CN107989579A (en) | 2017-12-27 | 2017-12-27 | A kind of vertical plunger oil-well pump power end of latent well formula multi-cylinder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711442401.2A CN107989579A (en) | 2017-12-27 | 2017-12-27 | A kind of vertical plunger oil-well pump power end of latent well formula multi-cylinder |
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| CN107989579A true CN107989579A (en) | 2018-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020015518A1 (en) * | 2018-07-18 | 2020-01-23 | 宁波合力机泵股份有限公司 | Multi-spherical-surface connected vertical type reciprocation pump power end and water injection pump using same |
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| CN101832243A (en) * | 2010-04-30 | 2010-09-15 | 北京工业大学 | Axial water pressure plunger pump with easy maintenance |
| CN203114547U (en) * | 2013-02-01 | 2013-08-07 | 重庆祥云机械制造有限公司 | Valve control axial plunger pump |
| JP2015059498A (en) * | 2013-09-18 | 2015-03-30 | アイシン精機株式会社 | Rotary swash plate type plunger pump |
| JP2015059496A (en) * | 2013-09-18 | 2015-03-30 | アイシン精機株式会社 | Rotary swash plate type plunger pump |
| CN103967731A (en) * | 2014-05-09 | 2014-08-06 | 西安交通大学 | End cam driving type axial plunger pump carrying out oil distribution by adopting flow distribution ring |
| CN105317670A (en) * | 2014-07-28 | 2016-02-10 | 中国石油天然气股份有限公司 | Magnetic-suspension swash plate type axial plunger pump |
| CN105756877A (en) * | 2016-04-13 | 2016-07-13 | 武汉钜威天数字化机械制造有限公司 | Axial plunger hydraulic pump with symmetric curved-skew main shaft structure |
| CN207634068U (en) * | 2017-12-27 | 2018-07-20 | 宁波合力机泵股份有限公司 | A kind of vertical plunger oil-well pump power end of latent well formula multi-cylinder |
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| WO2020015518A1 (en) * | 2018-07-18 | 2020-01-23 | 宁波合力机泵股份有限公司 | Multi-spherical-surface connected vertical type reciprocation pump power end and water injection pump using same |
| US11359614B2 (en) | 2018-07-18 | 2022-06-14 | Ningbo Heli Mechanical Pump Co., Ltd. | Power head of vertical reciprocating pump with multi-spherical connection, and water injection pump using the same |
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