CN105178920A - Derrick framed pumping unit - Google Patents
Derrick framed pumping unit Download PDFInfo
- Publication number
- CN105178920A CN105178920A CN201510688906.1A CN201510688906A CN105178920A CN 105178920 A CN105178920 A CN 105178920A CN 201510688906 A CN201510688906 A CN 201510688906A CN 105178920 A CN105178920 A CN 105178920A
- Authority
- CN
- China
- Prior art keywords
- belt
- cylinder
- frame
- wheel
- directive wheel
- 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.)
- Pending
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 36
- 239000010985 leather Substances 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 241001484259 Lacuna Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a derrick framed pumping unit. The derrick framed pumping unit comprises a rack which is fixedly connected with a base, wherein an electric drum is arranged in the rack as a power output device; a head is arranged on the upper part of the rack, a plurality of fixed guide wheels are arranged on the upper part of the head, and movable wheels and counterweight wheels are arranged at the two sides of the rack; pumping belts and counterweight belts drive movable pulleys; a connection shaft is arranged between the two movable wheels, and a beam hanger is arranged on the connection shaft; and a device connected with a counterweight box is arranged on a connection shaft between the two counterweight wheels. The derrick framed pumping unit disclosed by the invention is convenient to maintain, and capable of realizing stepless speed regulation in a loaded case; the derrick framed pumping unit disclosed by the invention has a high polished rod load, which is a breakthrough for extraction for deep wells and viscous oil; the energy consumption is low (by adopting a switched reluctance motor), and is greatly reduced in case of an equal liquid production capacity; and because a method of flexible connection is adopted, the wear of a pumping rod is effectively alleviated.
Description
Technical field
The present invention relates to a kind of tower shelf type oil pumping machine, belong to the technical field of oil exploration equipment aspect.
Background technology
A kind of drum tower frame type oil pumping unit of publication number CN102287169A, its power assembly contains motor, cylinder, hand-operated breaking mechanism and controller, described cylinder is arranged on the upper end of described pylon assembly, its power shaft is connected by the output shaft of shaft coupling with described motor, described hand-operated breaking mechanism and described shaft coupling are integral type structure, the manual operation section of described hand-operated breaking mechanism is installed on described base assembly, and described motor is arranged on described pylon assembly upper end and is connected with described controller; Described cylinder outer round surface is respectively arranged with front suspender belt cannelure and back strap cannelure, front suspender belt one end is connected with described front suspender belt cannelure, be connected with polished rod eye assembly after the other end walks around front jocket wheel assembly, back strap one end is connected with described back strap cannelure, the other end is connected with counterweight assembly after walking around rear guide wheel assembly, and the rail assembly that described counterweight assembly and described pylon assembly are arranged is slidably matched.
Publication number CN101975044A discloses a kind of mechanical reversing, it contains pylon, base assembly and power assembly, described power assembly contains motor, cylinder, reducer, speed increaser, crank and rocker mechanism, hand-operated breaking mechanism and controller, described cylinder suit is fixed on main shaft, its one end is connected with one end of described crank and rocker mechanism by described speed increaser, and the other end of described crank and rocker mechanism is connected with the output shaft of described motor by described reducer; Described cylinder outer round surface is respectively arranged with front suspender belt cannelure and back strap cannelure, and one end of front suspender belt is fixed in described front suspender belt cannelure, is connected after its other end walks around front jocket wheel with polished rod eye assembly; One end of back strap is fixed in described back strap cannelure, is connected after its other end walks around rear guide wheel with counterweight assembly; The rail assembly that described counterweight assembly and described pylon are arranged is slidably matched.
Summary of the invention
For the deficiency that the problems referred to above exist, the object of the invention is to, a kind of tower shelf type oil pumping machine is provided.
A kind of tower shelf type oil pumping machine, comprises frame (5) and is fixedly connected with pedestal (1), it is characterized in that: set cylinder (4) as power take-off in frame (5) inside; Head (14) is provided with on frame (5) top, be provided with multiple stator wheel (01), (02), (03), (04), (05), (06), (07), (08) on head (14) top, be provided with movable pulley A (7), B (9) and weighting distribution wheel A (21), B (23) in frame (5) both sides; Oil pumping belt A (10), B (11) and counterweight belt A (20), B (22) drive movable pulley; Be provided with connecting axle (8) at movable pulley A (7), B (9) middle part, connecting axle (8) is provided with polished rod eye; The connecting axle at described weighting distribution wheel A (21), B (23) middle part is provided with the device be connected with ballast box (24).
Counterweight belt A (20) one end is connected with the A groove interface of cylinder (4), walk around directive wheel (01) top again through directive wheel (03) top around under, after walking around weighting distribution wheel A (21) bottom again, be fixedly connected with right leather belt clamp (18); Counterweight belt B (22) one end is connected with the D groove interface of cylinder (4), walk around directive wheel (05) top again through directive wheel (07) top around under, then to be fixedly connected with right leather belt clamp (19) after walking around weighting distribution wheel B (23) bottom; Oil pumping belt A (10) one end is connected with the B groove interface of cylinder (4), walk around directive wheel (02) top again through directive wheel (04) top around under, then to be fixedly connected with left leather belt clamp (13) after walking around movable pulley B (9) bottom; Oil pumping belt B (11) one end is connected with the C groove interface of cylinder (4), walk around directive wheel (06) top again through directive wheel (08) top around under, then to be fixedly connected with left leather belt clamp (12) after walking around movable pulley A (7) bottom.
Described cylinder (4) inside is provided with built-in motor and deceleration device, and its motor is switched reluctance machines; The groove interface of A, B, C, D of cylinder (4) is connected with oil pumping belt A (10), B (11) and counterweight belt A (20), B (22), the spacing draw-in groove that four are wound around belt is provided with in cylinder (4) outside, described limiting card geosynclinal concave portion is wound around belt, at the bottom portion of groove of wheel, be provided with the connector (405) be connected with belt; Connector (405) is crimped on oil pumping belt A (10), B (11) and counterweight belt A (20), B (22) on cylinder (4) by belt latching (406).
Described frame (5) can be made into integral structure or two joint or multi-section type structures, and can increase arbitrarily the height of frame (5), thus increases oil pumper stroke.
Three axles are provided with, respectively: left axle (15), axis (16), right axle (17) on head (14) top; Three axles are provided with multiple stator wheel (01), (02), (03), (04), (05), (06), (07), (08).
Described axis (17) is provided with four directive wheels (01), (02), (05), (06), left axle (15) is installed directive wheel (04), (08), right axle (17) is installed directive wheel (03), (07).
Described cylinder (4) can be arranged on the bottom of frame (5) or middle part or middle and upper part, is provided with brake gear (25) in the middle part of cylinder (4) foreign steamer.
Head (14) is wider than frame (5).
The installation site of three axles on head (14) top is, longitudinally install, an axis (16) is installed at the middle part of frame (5), wide go out the two ends of head (14) a left axle (15) and right axle (17) are installed respectively.
The both ends of the width section that head (14) is wider than frame (5), install belt lacer (12), (13), (18), (19), belt A 10, B11, A20, B22 are fixedly connected with belt lacer (12), (13), (18), (19).
The present invention have is convenient to safeguard, can accomplish band load condition under stepless time adjustment.The present invention has polished rod load large, and the collection for deep-well, viscous crude is a breakthrough.Energy consumption low (employing switched reluctance machines) the machine energy consumption when equal Liquid output, has and significantly reduces.Owing to adopting the method be flexible coupling, effectively alleviate the wearing and tearing of sucker rod.
Accompanying drawing explanation
Fig. 1 is overall structure schematic perspective view of the present invention;
Fig. 2 is the main TV structure schematic diagram of Fig. 1;
Fig. 3 is the left TV structure schematic diagram of Fig. 1;
Fig. 4 is the right TV structure schematic diagram of Fig. 1;
Fig. 5 is the plan structure schematic diagram of Fig. 1;
Fig. 6 is the sectional structure schematic diagram of cylinder;
Fig. 7 is the another sectional structure schematic diagram of cylinder;
Fig. 8 is the syndeton schematic diagram of belt and cylinder.
In figure: cement pedestal 1, base 2, base plate 3, cylinder 4, frame 5, sucker rod 6, movable pulley A7, connecting axle 8, movable pulley B9, oil pumping belt A 10, oil pumping belt B11, left leather belt clamp 12, 13, head 14, left axle 15, axis 16, right axle 17, right leather belt clamp 18, 19, counterweight belt A 20, weighting distribution wheel A21, counterweight belt B22, weighting distribution wheel B23, ballast box 24, brake gear 25, motor 401, mount pad 402, foreign steamer 403, wheel concave bottom 404, connector 405, belt bayonet lock 406.
In figure: directive wheel 01, directive wheel 02, directive wheel 03, directive wheel 04, directive wheel 05, directive wheel 06, directive wheel 07, directive wheel 08.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of tower shelf type oil pumping machine, frame 5 is fixedly connected with pedestal 1, sets motorized pulleys 4 as power take-off in frame 5 inside; Described motorized pulleys 4, be provided with built-in motor and deceleration device in cylinder 4 inside, described motor is switched reluctance machines.This motor has following characteristic: starting current is little, and moment of torsion is large, can be with and carry speed governing.Be provided with head 14 on frame 5 top, be provided with multiple stator wheel 01,02,03,04,05,06,07,08 on head 14 top, frame 5 both sides are provided with movable pulley A7, B9 and weighting distribution wheel A21, B23; Oil pumping belt A 10, B11 and counterweight belt A 20, B22 drive movable pulley A7, B9 and weighting distribution wheel A21, B23 work.Described movable pulley A7, B9 and weighting distribution wheel A21, B23 are referred to as movable pulley.In the middle part of movable pulley A7, B9, be provided with connecting axle 8, connecting axle 8 is provided with polished rod eye, described polished rod eye is connected with sucker rod.Connecting axle in the middle part of described weighting distribution wheel A21, B23 is provided with the device be connected with ballast box 24.Can accomplish band load condition under stepless time adjustment.
Embodiment:
As shown in Figure 1, shown in Figure 5, a kind of tower shelf type oil pumping machine, in order to install and convenient transportation, frame 5 can be made into integral structure or two joint and multi-section type structures, can the height of reinforcement mouth frame 5 arbitrarily, thus increase oil pumper stroke.
Be provided with base plate 3 in the bottom of frame 5, be provided with head 14 at the top of frame 5.Three axles are provided with, left axle 15, axis 16, right axle 17 on head 14 top.Cylinder 4 can be arranged on the bottom of frame 5, middle part or middle and upper part.Head 14 is wider than frame 5.
The end of the width section that head 14 is wider than frame 5, installs belt lacer 12,13,18,19; Belt is fixedly connected with belt lacer.Described belt lacer is fixedly installed on the two ends of head 14 respectively.
The installation site of three axles on head 14 top is, as shown in Figure 2, Figure 4 shows, longitudinally install, an axis 16 is installed at the middle part of frame 5, wide go out the two ends of head 14 a left axle 15 and right axle 17 are installed respectively.Axis 16 is provided with four directive wheels 01,02,05,06, left axle 15 is installed directive wheel 04,08, right axle 17 is installed directive wheel 03,07.
Counterweight belt A 20 one end is connected with the A groove interface of cylinder 4, walk around directive wheel 01 top again through directive wheel 03 top around under, then after walking around weighting distribution wheel A21 bottom, to be fixedly connected with right leather belt clamp 18; Counterweight belt B22 one end is connected with the D groove interface of cylinder 4, walk around directive wheel 05 top again through directive wheel 07 top around under, then to be fixedly connected with right leather belt clamp 19 after walking around weighting distribution wheel B23 bottom.
Oil pumping belt A 10 one end is connected with the B groove interface of cylinder 4, walk around directive wheel 02 top again through directive wheel 04 top around under, then to be fixedly connected with left leather belt clamp 13 after walking around movable pulley B9 bottom; Oil pumping belt B11 one end is connected with the C groove interface of cylinder 4, walk around directive wheel 06 top again through directive wheel 08 top around under, then to be fixedly connected with left leather belt clamp 12 after walking around movable pulley A7 bottom.
The oil pumping belt A 10 that the groove interface of described A, B, C, D at cylinder 4 connects, B11 and counterweight belt A 20, B22, A, D groove interface connects when mounted counterweight belt A 20, counterweight belt B22 are wound around installation to the right; Oil pumping belt B11, the oil pumping belt A 10 of B, C groove interface connection are when mounted wound around installation left.Namely when oil pumper drives oil well pump descending, cylinder 4, to anticlockwise, makes oil pumping belt B11, A10 decontrol from cylinder 4, and movable pulley B9, A7 drive sucker rod 6 descending; Otherwise, when oil pumper drives oil well pump up, cylinder 4 is to right rotation, ballast box 24 moves down, oil pumping belt B11, A10 are wound around on cylinder 4, counterweight belt A 20, B22 decontrol from cylinder 4, and weighting distribution wheel A21, B23 drive ballast box 24 to move down, thus complete a reciprocal pump drainage process of oil well pump.
As shown in Fig. 1, Fig. 6, Fig. 7, Fig. 8, belt is arranged and mounting means: outside cylinder 4, be provided with the spacing draw-in groove that four are wound around belt, described limiting card geosynclinal concave portion is wound around belt.At the bottom portion of groove of wheel, be provided with the connector 405 be connected with belt.Connector 405 is crimped on oil pumping belt A 10, B11 and counterweight belt A 20, B22 on cylinder 4 by belt latching 406.
As shown in Figure 6, Figure 7, brake gear: be provided with brake gear 25 in the middle part of cylinder 4 foreign steamer, when equipment runs well, brake is in open mode, when disconnected bar appears in equipment, and power-off, the phenomenons such as voltage lacuna, brake at once that cylinder is locked, and ballast box 24 can hover over optional position, ensure that the safety of equipment and personnel.
When oil pumper runs well, when motor 401 rotates forward, sucker rod rises, and ballast box 24 declines, and when motor 401 reverses, sucker rod declines, and ballast box 24 rises, and ballast box balances most of weighing apparatus value load, and remaining variables load is by the acting of this mechanical kinetic energy.
Claims (10)
1. a tower shelf type oil pumping machine, comprises frame (5) and is fixedly connected with pedestal (1), it is characterized in that: set cylinder (4) as power take-off in frame (5) inside; Head (14) is provided with on frame (5) top, be provided with multiple stator wheel (01), (02), (03), (04), (05), (06), (07), (08) on head (14) top, be provided with movable pulley A (7), B (9) and weighting distribution wheel A (21), B (23) in frame (5) both sides; Oil pumping belt A (10), B (11) and counterweight belt A (20), B (22) drive movable pulley; Be provided with connecting axle (8) at movable pulley A (7), B (9) middle part, connecting axle (8) is provided with polished rod eye; The connecting axle at described weighting distribution wheel A (21), B (23) middle part is provided with the device be connected with ballast box (24).
2. oil pumper according to claim 1, it is characterized in that: counterweight belt A (20) one end is connected with the A groove interface of cylinder (4), walk around directive wheel (01) top again through directive wheel (03) top around under, after walking around weighting distribution wheel A (21) bottom again, be fixedly connected with right leather belt clamp (18);
Counterweight belt B (22) one end is connected with the D groove interface of cylinder (4), walk around directive wheel (05) top again through directive wheel (07) top around under, then to be fixedly connected with right leather belt clamp (19) after walking around weighting distribution wheel B (23) bottom;
Oil pumping belt A (10) one end is connected with the B groove interface of cylinder (4), walk around directive wheel (02) top again through directive wheel (04) top around under, then to be fixedly connected with left leather belt clamp (13) after walking around movable pulley B (9) bottom;
Oil pumping belt B (11) one end is connected with the C groove interface of cylinder (4), walk around directive wheel (06) top again through directive wheel (08) top around under, then to be fixedly connected with left leather belt clamp (12) after walking around movable pulley A (7) bottom.
3. oil pumper according to claim 1, is characterized in that: described cylinder (4) inside is provided with built-in motor and deceleration device, and its motor is switched reluctance machines; The groove interface of A, B, C, D of cylinder (4) is connected with oil pumping belt A (10), B (11) and counterweight belt A (20), B (22), the spacing draw-in groove that four are wound around belt is provided with in cylinder (4) outside, described limiting card geosynclinal concave portion is wound around belt, at the bottom portion of groove of wheel, be provided with the connector (405) be connected with belt; Connector (405) is crimped on oil pumping belt A (10), B (11) and counterweight belt A (20), B (22) on cylinder (4) by belt latching (406).
4. oil pumper according to claim 1, is characterized in that: described frame (5) can be made into integral structure or two joint or multi-section type structures, and can increase arbitrarily the height of frame (5), thus increases oil pumper stroke.
5. oil pumper according to claim 1, is characterized in that: be provided with three axles on head (14) top, respectively: left axle (15), axis (16), right axle (17); Three axles are provided with multiple stator wheel (01), (02), (03), (04), (05), (06), (07), (08).
6. oil pumper according to claim 5, it is characterized in that: described axis (17) is provided with four directive wheels (01), (02), (05), (06), left axle (15) is installed directive wheel (04), (08), right axle (17) is installed directive wheel (03), (07).
7. oil pumper according to claim 1, it is characterized in that: described cylinder (4) can be arranged on the bottom of frame (5) or middle part or middle and upper part, is provided with brake gear (25) in the middle part of cylinder (4) foreign steamer.
8. oil pumper according to claim 1, is characterized in that: head (14) is wider than frame (5).
9. oil pumper according to claim 1 or 5, it is characterized in that: the installation site of three axles on head (14) top is, longitudinally install, an axis (16) is installed at the middle part of frame (5), wide go out the two ends of head (14) a left axle (15) and right axle (17) are installed respectively.
10. oil pumper according to claim 1, it is characterized in that: the both ends of the width section that head (14) is wider than frame (5), install belt lacer (12), (13), (18), (19), belt A 10, B11, A20, B22 are fixedly connected with belt lacer (12), (13), (18), (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510688906.1A CN105178920A (en) | 2015-10-23 | 2015-10-23 | Derrick framed pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510688906.1A CN105178920A (en) | 2015-10-23 | 2015-10-23 | Derrick framed pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105178920A true CN105178920A (en) | 2015-12-23 |
Family
ID=54901275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510688906.1A Pending CN105178920A (en) | 2015-10-23 | 2015-10-23 | Derrick framed pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105178920A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150442A (en) * | 2016-08-02 | 2016-11-23 | 任丘市立信石油机械制造有限公司 | A kind of novel auxiliary beam-pumping unit of Balance type |
| CN109973055A (en) * | 2019-04-30 | 2019-07-05 | 雪曼圣杰科技有限公司 | Pumping unit |
| CN112593900A (en) * | 2020-12-29 | 2021-04-02 | 大庆丹诺石油科技开发有限公司 | Tower type oil pumping unit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1684452A1 (en) * | 1989-06-19 | 1991-10-15 | Производственное объединение "Уралмаш" | Drilling rig |
| CA2533839A1 (en) * | 1998-04-10 | 1999-10-15 | Key Energy Services, Inc. | Method of determining a cross-load on a mobile repair unit for a well |
| CN2721910Y (en) * | 2004-09-02 | 2005-08-31 | 赵华春 | Drum oil sucker with long stroke |
| CN201610746U (en) * | 2010-02-05 | 2010-10-20 | 濮阳市双发实业有限责任公司 | Boosting variable-diameter derrick pumping unit |
| CN101975047A (en) * | 2010-11-18 | 2011-02-16 | 大庆井井源油田科技开发有限公司 | Low-position platform drive pylon type oil extractor |
| CN102926717A (en) * | 2012-11-23 | 2013-02-13 | 天津正本自控系统有限公司 | Transmission belt assembly of oil pumping unit |
| CN202810804U (en) * | 2012-10-22 | 2013-03-20 | 山东红帆能源科技有限公司 | Tower type pumping unit |
| CN205063907U (en) * | 2015-10-23 | 2016-03-02 | 任丘市立信石油机械制造有限公司 | Tower type pumping unit |
-
2015
- 2015-10-23 CN CN201510688906.1A patent/CN105178920A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1684452A1 (en) * | 1989-06-19 | 1991-10-15 | Производственное объединение "Уралмаш" | Drilling rig |
| CA2533839A1 (en) * | 1998-04-10 | 1999-10-15 | Key Energy Services, Inc. | Method of determining a cross-load on a mobile repair unit for a well |
| CN2721910Y (en) * | 2004-09-02 | 2005-08-31 | 赵华春 | Drum oil sucker with long stroke |
| CN201610746U (en) * | 2010-02-05 | 2010-10-20 | 濮阳市双发实业有限责任公司 | Boosting variable-diameter derrick pumping unit |
| CN101975047A (en) * | 2010-11-18 | 2011-02-16 | 大庆井井源油田科技开发有限公司 | Low-position platform drive pylon type oil extractor |
| CN202810804U (en) * | 2012-10-22 | 2013-03-20 | 山东红帆能源科技有限公司 | Tower type pumping unit |
| CN102926717A (en) * | 2012-11-23 | 2013-02-13 | 天津正本自控系统有限公司 | Transmission belt assembly of oil pumping unit |
| CN205063907U (en) * | 2015-10-23 | 2016-03-02 | 任丘市立信石油机械制造有限公司 | Tower type pumping unit |
Non-Patent Citations (1)
| Title |
|---|
| 中国重型机械工业协会编: "《中国重型机械选型手册 重型基础零部件》", 31 March 2015, 冶金工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150442A (en) * | 2016-08-02 | 2016-11-23 | 任丘市立信石油机械制造有限公司 | A kind of novel auxiliary beam-pumping unit of Balance type |
| CN109973055A (en) * | 2019-04-30 | 2019-07-05 | 雪曼圣杰科技有限公司 | Pumping unit |
| CN112593900A (en) * | 2020-12-29 | 2021-04-02 | 大庆丹诺石油科技开发有限公司 | Tower type oil pumping unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105178920A (en) | Derrick framed pumping unit | |
| CN104018814A (en) | Double-balanced range-extended hydraulic oil pumping unit | |
| CN101881146A (en) | Swinging double-well pumping unit | |
| CN204920914U (en) | Type beam -pumping unit is directly driven at top | |
| CN102628349B (en) | Lifting platform type pumping unit | |
| CN205063907U (en) | Tower type pumping unit | |
| CN201771472U (en) | Hydraulic pumping unit | |
| CN202325429U (en) | Long-stroke dual-well oil pumping unit | |
| CN201560752U (en) | Double-well linear pumping unit | |
| CN101413386A (en) | Non-gear counterweight drawing type oil pumping machine provided with motor at lower | |
| CN202673256U (en) | Cluster well one-machine double-production lifting device | |
| CN204492766U (en) | Dustproof big gear wheel balance-type type wheel carrier oil pumper | |
| CN203626750U (en) | Synchronous-belt-type beam-free pumping unit | |
| CN103758488A (en) | Flexible-beam pumping unit | |
| CN204152485U (en) | Vertical mechanical balanced hydraulic oil extractor | |
| CN201934077U (en) | Special pumping unit for offshore oil field | |
| CN212479176U (en) | Intelligent control digital hydraulic pumping unit | |
| CN104234670B (en) | A kind of tower linear oil pumping machine | |
| CN104563973B (en) | Trapezoidal tooth coupling belt type discontinuous non-beam pumping unit | |
| CN201865640U (en) | Underslung-driving long-stroke energy-saving dual-well pumping unit | |
| CN208456565U (en) | A kind of tower-type chain drive pumping unit | |
| CN201262070Y (en) | Hydraulic oil-pumping unit | |
| CN201443370U (en) | Long-stroke energy-saving oil extractor | |
| CN204212745U (en) | A kind of without beam type intelligent oil pumping machine transmission mechanism | |
| CN203097847U (en) | Wide-belt type pumping unit provided with double chains |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170313 Address after: 062550 Hebei city of Renqiu province of China Road Subdistrict Office Xu Village (North Road No. 51) Applicant after: Sherman Shengjie Science & Technology Co Ltd Address before: Five street 062550 Cangzhou city of Hebei Province, Renqiu City, Xinhua Road Office (Yanshan Road) Applicant before: RENQIU LIXIN PETROLEUM MACHINERY MANUFACTURING CO., LTD. |
|
| DD01 | Delivery of document by public notice |
Addressee: Sherman Shengjie Science & Technology Co Ltd Document name: the First Notification of an Office Action |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Sherman Shengjie Science & Technology Co Ltd Document name: Notification of an Office Action |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Sherman Shengjie Science & Technology Co Ltd Document name: Notification of an Office Action |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |