CN106837255A - Reciprocating extracting device of oil - Google Patents

Reciprocating extracting device of oil Download PDF

Info

Publication number
CN106837255A
CN106837255A CN201710128087.4A CN201710128087A CN106837255A CN 106837255 A CN106837255 A CN 106837255A CN 201710128087 A CN201710128087 A CN 201710128087A CN 106837255 A CN106837255 A CN 106837255A
Authority
CN
China
Prior art keywords
support
wheel
sleeve
base
gear ring
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.)
Granted
Application number
CN201710128087.4A
Other languages
Chinese (zh)
Other versions
CN106837255B (en
Inventor
于会萍
宋秀伟
魏莉
余宁静
姜丽丽
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.)
Dongying Zhengnuo Technology Service Co ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201710128087.4A priority Critical patent/CN106837255B/en
Publication of CN106837255A publication Critical patent/CN106837255A/en
Application granted granted Critical
Publication of CN106837255B publication Critical patent/CN106837255B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121Lifting well fluids
    • E21B43/126Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
    • E21B43/127Adaptations of walking-beam pump systems

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Details Of Gearings (AREA)

Abstract

Reciprocating extracting device of oil, including base, first driving equipment and support wheel are installed on base, the output shaft connection first gear of the first driving equipment, coordinate installation sleeve on support wheel, sleeve is put for horizontal, the outer wall of sleeve is engaged with support wheel, the periphery of sleeve is installed by first annular gear ring, the tooth position of first annular gear ring is in periphery, first annular gear ring engages cooperation with first gear, the inwall of sleeve installs the second annular gear ring, the tooth position of the second annular gear ring is in inwall, horizontal rotary shaft is provided with the axis of sleeve, central gear is fixedly mounted in rotary shaft, it is connected by several planetary gears between central gear and the second annular gear ring;The support base of annular is fixedly mounted on base, support base is connected by bearing with the end of sleeve.The present invention carries out Multi-stage transmission, accurate gearratio and transmission efficiency by structures such as gear, gear rings, is easy to adjust jig frequency by the situation of underground.

Description

Reciprocating extracting device of oil
Technical field
The invention belongs to petroleum works field, specifically a kind of reciprocating extracting device of oil.
Background technology
Extracting device of oil can also turn into oil pumper, be important equipment in oil field, be wherein arranged on bar pump oil extracting device more Ground.For example, beam type oil production machine volume is larger, overall pulling down is needed when mobile, be not easy to the transfer between oil well, but its When can adapt to the situation that down-hole pressure is changed greatly(Pressure is excessive or too small);Though the reciprocating extracting device of oil of linear electric motors Right small volume, but it passes through driven by power rotor or stator rotation, in the case where down-hole pressure is changed greatly, downwards or Person is obstructed substantially upwards, easily causes rotor or stator overload and damages for rotor or stator loading effects substantially It is bad.
The content of the invention
The present invention provides a kind of reciprocating extracting device of oil, is used to solve defect of the prior art.
The present invention is achieved by the following technical programs:
Reciprocating extracting device of oil, including base, install the first driving equipment and support wheel, the output of the first driving equipment on base Axle connects first gear, and installation sleeve is coordinated on support wheel, and laterally to put, the outer wall of sleeve is contacted with support wheel matches somebody with somebody sleeve Close, first annular gear ring is installed in the periphery of sleeve, the tooth position of first annular gear ring in periphery, first annular gear ring and first gear Engagement coordinates, and the inwall of sleeve installs the second annular gear ring, and the tooth position of the second annular gear ring sets at inwall, the axis of sleeve There is horizontal rotary shaft, central gear is fixedly mounted in rotary shaft, several rows are passed through between central gear and the second annular gear ring Star gear is connected;The support base of annular is fixedly mounted on base, support base is connected by bearing with the end of sleeve, Support frame is installed in support base inner side, and support frame is connected by bearing with rotary shaft, and the end of rotary shaft is located at support base Rotation seat is simultaneously installed in outside, and rotation seat is made up of connecting plate and swash plate, and connecting plate and swash plate are structure as a whole, connecting plate with rotate Axle is fixedly connected and vertical axis of rotation, and obtuse angle is formed between swash plate and connecting plate, and wheel shaft is fixedly mounted on swash plate, is installed on wheel shaft Rotating wheel;The sidepiece of support base installs hinged seat, and be articulated and connected arc on hinged seat, and the through groove of arc is opened up on arc, Rotating wheel is located in through groove;One end of Hooks coupling universal coupling, the one of the other end connection connecting rod of Hooks coupling universal coupling are connected on arc End, the other end connection plunger of connecting rod;Guide holder is installed, guide holder is to install two in frame-type structure, guide holder to lead at well head To wheel, the sidepiece of connecting rod is connected cooperation with directive wheel;Underground installment work cylinder, the lower end of connecting rod and plunger are located in seating nipple, Connecting rod is parallel with the length direction of seating nipple, and bottom valve is installed in the bottom of seating nipple, and lower valve is installed in the lower end of plunger, plunger Install valve in upper end.
Install and pass through bearing in retainer plate, retainer plate in reciprocating extracting device of oil as described above, the rear portion of described base Connection support disk, planetary gear connects one end of support shaft by bearing, and the other end of support shaft is fixedly connected support disk, The center of circle of disk is supported to be located on the extended line of rotary shaft, support disk is perpendicular to rotary shaft.
Reciprocating extracting device of oil as described above, the rear side of described support disk installs driven pulley, the driven pulley center of circle with Support the center of circle of disk to be located at same horizontal line, the second driving equipment is installed on base, the output shaft of the second driving equipment is installed Driving wheel, is connected between driving wheel and driven pulley by attachment means.
Reciprocating extracting device of oil as described above, described attachment means are belt, and driving wheel and driven pulley are belt Wheel.
Reciprocating extracting device of oil as described above, described attachment means are driving-chain, and driving wheel and driven pulley are chain Wheel.
Reciprocating extracting device of oil as described above, described support wheel is two groups, support wheel respectively with the bottom two of sleeve It is connected at end.
It is an advantage of the invention that:The present invention carries out Multi-stage transmission, accurate gearratio and biography by structures such as gear, gear rings Efficiency of movement, is easy to adjust jig frequency by the situation of underground.Meanwhile, the beam type extracting device of oil compared with transmissions such as belts of the invention, Its frictional dissipation is relatively low.The present invention is located at well head top, and maximum height is far smaller than the oil recovery mechanism of beam type, small volume, It is overall more compact, it is convenient to install and carry.Compared with the reciprocating equipments such as linear electric motors, its stroke ability is strong, can be to well Lower pressure remains in that oil recovery efficiency higher when larger.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are this hairs Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is structural representation of the invention;Fig. 2 is the A of Fig. 1 to structural representation;Fig. 3 is cuing open along the B-B elder generations of Fig. 1 Depending on structural representation;Fig. 4 is the C of Fig. 1 to structural representation;Fig. 5 is the partial sectional view along the line D-D of Fig. 1.
Reference:The first annular gear ring 7 of 15 sleeve of base 2 first driving equipment, 3 first gear, 4 support wheel 6 The rotation seat 131 of second annular gear ring, 8 rotary shaft, 9 central gear, 10 planetary gear, 11 support base, 12 support frame 13 is connected The guide holder 22 of 20 plunger of plate 132 swash plate, 14 wheel shaft, 15 rotating wheel, 16 hinged seat, 17 arc, 18 through groove, 19 connecting rod 21 The support shaft 30 of the support of 27 retainer plate of valve 28 disk 29 the on 23 seating nipple of directive wheel 24,25 times valves of bottom valve 26 The Hooks coupling universal coupling of two driving equipments, 31 driving wheel, 32 attachment means, 33 driven pulley 34.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Reciprocating extracting device of oil, as illustrated, including base 1, the first driving equipment 2 and support wheel 4 are installed on base 1, The output shaft connection first gear 3 of the first driving equipment 2, coordinates installation sleeve 5 on support wheel 4, support wheel 4 is supported to sleeve 5 Power, it is ensured that stability when sleeve 5 is rotated, laterally to put, outer wall and the support wheel 4 of sleeve 5 are engaged sleeve 5, sleeve 5 Periphery first annular gear ring 6 is installed, the tooth position of first annular gear ring 6 in periphery, with first gear 3 nibble by first annular gear ring 6 Close and coordinate, the inwall of sleeve 5 installs the second annular gear ring 7, and the tooth position of the second annular gear ring 7 is at inwall, the axis of sleeve 5 Horizontal rotary shaft 8 is provided with, central gear 9 is fixedly mounted in rotary shaft 8, passed through between the annular gear ring 7 of central gear 9 and second Several planetary gears 10 are connected;The support base 11 of annular is fixedly mounted on base 1, support base 11 is by bearing and sleeve 5 End be connected, support base 11 can be supported to the edge of sleeve 5, it is ensured that the stabilization of its rotation process, support base Support frame 12 is installed in 11 inner sides, and support frame 12 is connected by bearing with rotary shaft 8, rotation of the support frame 12 to rotary shaft 8 It is supported, keeps the end of the rotation of the stabilization of rotary shaft 8, rotary shaft 8 to be located at the outside of support base 11 and rotation seat 13 is installed, Rotation seat 13 is made up of connecting plate 131 and swash plate 132, and connecting plate 131 and swash plate 132 are structure as a whole, connecting plate 131 with rotate Axle 8 is fixedly connected and vertical axis of rotation 8, and obtuse angle is formed between swash plate 132 and connecting plate 131, and wheel shaft is fixedly mounted on swash plate 132 14, rotating wheel 15 is installed on wheel shaft 14;The sidepiece of support base 11 installs hinged seat 16, and be articulated and connected arc on hinged seat 16 17, the through groove 18 of arc is opened up on arc 17, rotating wheel 15 is located in through groove 18;Hooks coupling universal coupling 34 is connected on arc 17 One end, the other end of Hooks coupling universal coupling 34 connects one end of connecting rod 19, the other end connection plunger 20 of connecting rod 19;Pacify at well head Dress guide holder 21, guide holder 21 is that two directive wheels 22, the sidepiece and directive wheel of connecting rod 19 are installed in frame-type structure, guide holder 21 22 connections coordinate;Underground installment work cylinder 23, the lower end of connecting rod 19 and plunger 20 are located in seating nipple 23, connecting rod 19 and seating nipple 23 length direction is parallel, and bottom valve 24 is installed in the bottom of seating nipple 23, and lower valve 25 is installed in the lower end of plunger 20, plunger 20 Install valve 26 in upper end.The present invention carries out Multi-stage transmission by structures such as gear, gear rings, and accurate gearratio and transmission are imitated Rate, is easy to adjust jig frequency by the situation of underground.Meanwhile, compared with the beam type extracting device of oil of the transmissions such as belt, it rubs the present invention Consumption of wearing is relatively low.The present invention is located at well head top, and maximum height is far smaller than the oil recovery mechanism of beam type, and small volume is overall It is more compact, it is convenient to install and carry.Compared with the reciprocating equipments such as linear electric motors, its stroke ability is strong, can be to underground pressure Oil recovery efficiency higher is remained in that when power is larger.
Specifically, in order to further increase stability of the invention, the rear portion of the base 1 described in the present embodiment installs solid Surely enclose in 27, retainer plate 27 and support disk 28 connected by bearing, planetary gear 10 connects one end of support shaft 29 by bearing, Bearing connection does not interfere with the rotation of planetary gear 10, and the other end of support shaft 29 is fixedly connected support disk 28, supports disk 28 center of circle is located on the extended line of rotary shaft 8, and support disk 28 is perpendicular to rotary shaft 8.By supporting disk 28 and retainer plate 27 common support, is supported such that it is able to pass through support shaft 29 to planetary gear 10, and support disk 28 is in the lump with planet tooth The revolution of wheel 10.
Specifically, the load in order to reduce by the first driving equipment 2, the rear side installation of the support disk 28 described in the present embodiment Driven pulley 33, the center of circle of driven pulley 33 is located at same horizontal line with the center of circle of support disk 28, and the second driving equipment is installed on base 1 30, the output shaft of the second driving equipment 30 installs driving wheel 31, is connected by attachment means 32 between driving wheel 31 and driven pulley 33 Connect.The load of the first driving equipment 2 can be shared by the second driving equipment 30, specifically, passing through the band of the second driving equipment 30 Dynamic driving wheel 31 and driven pulley 33 are rotated, can electronic support disk 28 rotate so that the passive rotation of planetary gear 10 turns It is active rotation.It is changed into power resources from simple support, effectively reduces the load of the first driving equipment 2.Should be noted It is that the output of the rotating speed of the second driving equipment 30 needs to be exported with the rotating speed of the first driving equipment 2 and is engaged, in the art can be with The optimum speed of the two is obtained by transmission calculation, the two rotation can also control to adjust by computer etc..
Further, the attachment means 32 described in the present embodiment are belt, and driving wheel 31 and driven pulley 33 are belt pulley. Belt pulley and belt are cheap, it is adaptable to rotation at a slow speed, are convenient for changing and safeguard.
Further, the attachment means 32 described in the present embodiment are driving-chain, and driving wheel 31 and driven pulley 33 are chain Wheel.Sprocket wheel is rotated than more accurately, bearing load is higher.
Further, the support wheel 4 described in the present embodiment be two groups, support wheel 4 respectively with the bottom two ends of sleeve 5 at It is connected.Multigroup support wheel 4 can throw raising stability, improve the stabilization of the rotation of sleeve 5.
First driving equipment 2 and the second driving equipment 30 are motor, diesel engine, gasoline engine or can provide rotation The device of output.
The course of work of the invention is:By the first driving equipment 2 drive first gear 3 rotate, such that it is able to drive with The first annular gear ring 6 of its engagement is rotated, so that band moving sleeve 5 is rotated in the lump, now the second annular gear ring 7 can drive planet Gear 10 is rotated, and is rotated by the transmission of planetary gear 10, can realize the rotation of the central gear 9 of centre, and central gear 9 Linear velocity more than sleeve 5 linear velocity.Central gear 9 drives rotary shaft 8 to rotate, and the rotation seat 13 of the end of rotary shaft 8 revolves Turn, the drive rotating wheel 15 of the end of rotation seat 13 is followed and rotated in the lump, and rotating wheel 15 does arcuate movement along through groove 18, so as to drive The end of arc 17 is stirred up and down centered on the jointed shaft of hinged seat 16, so as to pass through the drivening rod 19 of Hooks coupling universal coupling 34 Move up and down.Underground part then completes stroke and carries out oil exploitation work.
Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that:It still may be used Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic; And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and Scope.

Claims (6)

1. reciprocating extracting device of oil, it is characterised in that:Including base(1), base(1)The first driving equipment of upper installation(2)And branch Support wheel(4), the first driving equipment(2)Output shaft connection first gear(3), support wheel(4)Upper cooperation installation sleeve(5), set Cylinder(5)Laterally to put, sleeve(5)Outer wall and support wheel(4)It is engaged, sleeve(5)Periphery first annular tooth is installed Circle(6), first annular gear ring(6)Tooth position in periphery, first annular gear ring(6)With first gear(3)Engagement coordinates, sleeve (5)Inwall install the second annular gear ring(7), the second annular gear ring(7)Tooth position in inwall, sleeve(5)Axis at set There is horizontal rotary shaft(8), rotary shaft(8)Upper fixed installation central gear(9), central gear(9)With the second annular gear ring(7) Between pass through several planetary gears(10)It is connected;Base(1)The support base of upper fixed installation annular(11), support base(11) By bearing and sleeve(5)End be connected, support base(11)Inner side is installed by support frame(12), support frame(12)By axle Hold and rotary shaft(8)It is connected, rotary shaft(8)End be located at support base(11)Outside and rotation seat is installed(13), turn Dynamic seat(13)By connecting plate(131)And swash plate(132)Composition, connecting plate(131)And swash plate(132)It is structure as a whole, connecting plate (131)With rotary shaft(8)It is fixedly connected and vertical axis of rotation(8), swash plate(132)With connecting plate(131)Between form obtuse angle, tiltedly Plate(132)Upper fixed installation wheel shaft(14), wheel shaft(14)Upper installation rotating wheel(15);Support base(11)Sidepiece install hinged seat (16), hinged seat(16)On be articulated and connected arc(17), arc(17)On open up the through groove of arc(18), rotating wheel(15) Positioned at through groove(18)It is interior;Arc(17)Upper connection Hooks coupling universal coupling(34)One end, Hooks coupling universal coupling(34)The other end connect Connective pole(19)One end, connecting rod(19)The other end connection plunger(20);Guide holder is installed at well head(21), guide holder(21) It is frame-type structure, guide holder(21)Two directive wheels of interior installation(22), connecting rod(19)Sidepiece and directive wheel(22)Connection coordinates; Underground installment work cylinder(23), connecting rod(19)Lower end and plunger(20)Positioned at seating nipple(23)It is interior, connecting rod(19)With seating nipple (23)Length direction it is parallel, seating nipple(23)Bottom install bottom valve(24), plunger(20)Lower end lower valve is installed (25), plunger(20)Upper end install valve(26).
2. reciprocating extracting device of oil according to claim 1, it is characterised in that:Described base(1)Rear portion install solid Fixed circle(27), retainer plate(27)It is interior that support disk is connected by bearing(28), planetary gear(10)Support shaft is connected by bearing (29)One end, support shaft(29)The other end be fixedly connected support disk(28), support disk(28)The center of circle be located at rotate Axle(8)Extended line on, support disk(28)Perpendicular to rotary shaft(8).
3. reciprocating extracting device of oil according to claim 2, it is characterised in that:Described support disk(28)Rear side peace Dress driven pulley(33), driven pulley(33)The center of circle and support disk(28)The center of circle be located at same horizontal line, base(1)It is upper to install the Two driving equipments(30), the second driving equipment(30)Output shaft install driving wheel(31), driving wheel(31)With driven pulley(33) Between pass through attachment means(32)Connection.
4. reciprocating extracting device of oil according to claim 3, it is characterised in that:Described attachment means(32)It is belt, Driving wheel(31)And driven pulley(33)It is belt pulley.
5. reciprocating extracting device of oil according to claim 3, it is characterised in that:Described attachment means(32)It is transmission Chain, driving wheel(31)And driven pulley(33)It is sprocket wheel.
6. reciprocating extracting device of oil according to claim 1, it is characterised in that:Described support wheel(4)It is two groups, support Wheel(4)Respectively with sleeve(5)Bottom two ends at be connected.
CN201710128087.4A 2017-03-06 2017-03-06 Reciprocating extracting device of oil Active CN106837255B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710128087.4A CN106837255B (en) 2017-03-06 2017-03-06 Reciprocating extracting device of oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710128087.4A CN106837255B (en) 2017-03-06 2017-03-06 Reciprocating extracting device of oil

Publications (2)

Publication Number Publication Date
CN106837255A true CN106837255A (en) 2017-06-13
CN106837255B CN106837255B (en) 2018-10-26

Family

ID=59137963

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710128087.4A Active CN106837255B (en) 2017-03-06 2017-03-06 Reciprocating extracting device of oil

Country Status (1)

Country Link
CN (1) CN106837255B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201982068U (en) * 2011-03-23 2011-09-21 深圳市联创环保节能设备有限公司 Electricity-saving beam oil pumping unit and super-efficiency energy saving electric transmission component thereof
CN202215206U (en) * 2011-08-04 2012-05-09 许进文 Balanced type one-driving-two oil production unit
CN102808602A (en) * 2012-08-23 2012-12-05 李兆胜 Automatic speed-changing wide-swing-angle oil pumping machine
CN203431114U (en) * 2013-05-22 2014-02-12 黄健 Flywheel guide groove reciprocating piston type transmission device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201982068U (en) * 2011-03-23 2011-09-21 深圳市联创环保节能设备有限公司 Electricity-saving beam oil pumping unit and super-efficiency energy saving electric transmission component thereof
CN202215206U (en) * 2011-08-04 2012-05-09 许进文 Balanced type one-driving-two oil production unit
CN102808602A (en) * 2012-08-23 2012-12-05 李兆胜 Automatic speed-changing wide-swing-angle oil pumping machine
CN203431114U (en) * 2013-05-22 2014-02-12 黄健 Flywheel guide groove reciprocating piston type transmission device

Also Published As

Publication number Publication date
CN106837255B (en) 2018-10-26

Similar Documents

Publication Publication Date Title
CN1752406B (en) Single crank double stroke flexible rope beam-pumping unit
CN101298833A (en) Balance type beam-pumping unit
CA2770416C (en) Reciprocating pump drive apparatus for operating a downhole pump via a rod string
CN201802360U (en) Crank pumping unit without beam
CN201606040U (en) Dual horsehead dynamic balance mechanical oil recovery device
CN107387088A (en) A kind of seabed nodules collector device
CN106837255A (en) Reciprocating extracting device of oil
CN107662219A (en) A kind of robot wrist mechanism based on the semidecussation kind of drive
CN102518413B (en) Two-stage planetary reduction pumping unit with built-in winding drum
CN209538165U (en) A kind of reacting cycle piling machine
CN110329951A (en) A kind of two tons of load-carrying aerial work platforms of crawler type with bi-directional expansion structure
CN201730596U (en) Tower type combined transmission numerical-controlled oil extractor
CN201241667Y (en) Energy-saving type oil pumping machine
WO2008052381A1 (en) A wheel type pumping unit
CN102661136A (en) Pumping unit with two-time stroke-doubling balancing
CN204082102U (en) Steel wire rope type oil-field oil pumper
CN101881145A (en) Tower frame type combined transmission numerically controlled pumping unit
CN208718626U (en) A kind of permanent-magnet synchronous pumping unit being conveniently adjusted oil pumping position
CN204004315U (en) Hollow shaft reducer lands erecting device
CN204848015U (en) Small -sizely decide pillar jib crane
CN105060127A (en) Fixed-column-type cantilever crane
RU2278994C1 (en) Drive for deep-well sucked-rod pumping unit (versions)
CN204823897U (en) Pillar jib crane is decided to convenient to use small -size
CN204920914U (en) Type beam -pumping unit is directly driven at top
CN105156105B (en) A kind of coal-winning machine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20230109

Address after: Room 403-01, Block D, Software Park, No. 228, Nanyi Road, Dongying Development Zone, Shandong 257091

Patentee after: Dongying Zhengnuo Technology Service Co.,Ltd.

Address before: Room 401, Unit 3, Building 11, No. 388, Beier Road, Dongying District, Dongying City, Shandong Province, 257100

Patentee before: Yu Huiping

Patentee before: Song Xiuwei

Patentee before: Wei Li

Patentee before: Yu Ningjing

Patentee before: Jiang Lili

TR01 Transfer of patent right