CN204920918U - Beam -pumping unit based on motion counter weight - Google Patents
Beam -pumping unit based on motion counter weight Download PDFInfo
- Publication number
- CN204920918U CN204920918U CN201520681960.9U CN201520681960U CN204920918U CN 204920918 U CN204920918 U CN 204920918U CN 201520681960 U CN201520681960 U CN 201520681960U CN 204920918 U CN204920918 U CN 204920918U
- Authority
- CN
- China
- Prior art keywords
- walking beam
- gathering sill
- balancing weight
- pumping unit
- horse head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Rehabilitation Tools (AREA)
- Toys (AREA)
Abstract
The utility model discloses a beam -pumping unit based on motion counter weight, including grudging post and walking beam, walking beam one end sets up the horse head, set up the guide way on the walking beam, set up the balancing weight in the guide way, stand the shelf location pivot, install the action wheel in the pivot and follow the driving wheel, drivenly take turns to fixed stretching strap, set up the extension rod in the grudging post, articulated runner on the extension rod, fixed mounting transfer line on the runner, the cover has first drive belt on the action wheel, first drive belt one end is connected with transfer line one end, the haulage rope is connected to the transfer line other end, the first drive belt other end passes through reset spring and is connected with spacing pin, the line length of haulage rope has the surplus, setting up the link on the balancing weight, setting up the couple in the guide way and be used for the switching device that control was geted in touch and the link articulates mutually or breaks away from mutually, the walking beam is kept away from the one end of horse head and is connected pull rope. Action of gravity when this beam -pumping unit utilizes the balancing weight to move down provides power for going upward of horse head, and then has practiced thrift required outside power and energy in vogue on the horse head.
Description
Technical field
The utility model belongs to oil pumper technical field, specifically relates to a kind of beam pumping unit based on motion counterweight.
Background technology
Oil pumper is a kind of machinery equipment of recover petroleum, current commonly beam pumping unit, be commonly called as " machine of kowtowing ", it adopts lever principle to make oil go out well by the way of pressurization, drive oil well pump that the oil of down-hole is delivered to ground when its sucker rod is up, when sucker rod is descending, oil well pump resets and prepares to drive next time.But this oil pumper pulls walking beam by the outside power provided, and then drive horse head up, thus drive sucker rod, this mode providing power to drive horse head up by outside, need to consume larger power, and the upper line efficiency of horse head is low.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of beam pumping unit based on motion counterweight.Action of Gravity Field when this oil pumper utilizes balancing weight to move down is horse head uply provides power, so saved horse head up time the required external impetus energy, effectively saved the energy, its structure be simple, easy to use, validity has been strong, be convenient to promote the use of.
For achieving the above object, the technical solution adopted in the utility model is: a kind of beam pumping unit based on motion counterweight, it is characterized in that: comprise stand and be hinged on the walking beam in described stand, one end of described walking beam is provided with horse head, position away from horse head on described walking beam offers gathering sill, described gathering sill extends along the length direction of walking beam, balancing weight is provided with in described gathering sill, the top described stand being positioned at walking beam is provided with rotating shaft, described rotating shaft is provided with driving wheel and driven pulley, described driven pulley is fixed with the drawstring for balancing weight described in tractive, described stand is provided with the extension rod to extending away from horse head side, described extension rod is hinged with runner, described runner is installed with drive link, described drive link is L shape bar, described extension rod is provided with the spacing pin with described transmission rod, on described driving wheel, cover has the first driving-belt, described one end of first driving-belt is connected with one end of drive link, the other end of described drive link is connected with walking beam by pull rope, the other end of described first driving-belt is connected with described spacing pin by back-moving spring, the line length of described pull rope has surplus, described balancing weight is provided with link, be provided with in described gathering sill hook with for controlling the switching device that described hook mounts mutually with described link or is separated, described walking beam is connected with the pulling rope for driving walking beam to rotate away from one end of horse head.
Above-mentioned a kind of beam pumping unit based on motion counterweight, it is characterized in that: the cross bar that described switching device comprises lever and is fixedly connected with described gathering sill, the middle part of described lever is hinged on described cross bar, described hook is arranged on one end of described lever, the other end of described lever is installed with brace, described stand is provided with the upper plate matched with described brace, described lever is connected by the groove bottom wall of extension spring with described gathering sill near the position of hook.
Above-mentioned a kind of beam pumping unit based on motion counterweight, is characterized in that: the bottom of described balancing weight is provided with for rolling the roller coordinated with described gathering sill.
Above-mentioned a kind of beam pumping unit based on motion counterweight, is characterized in that: described driven pulley, for semicircle, the outer circumference surface of described driven pulley offers the groove entered for described drawstring.
Above-mentioned a kind of beam pumping unit based on motion counterweight, it is characterized in that: described drive link is provided with the guide wheel for guiding pull rope downwards, the outer circumference surface of described guide wheel offers the guiding groove entered for described pull rope, described guide wheel is semicircle.
Above-mentioned a kind of beam pumping unit based on motion counterweight, is characterized in that: be provided with cylinder in described gathering sill, and the piston rod of described cylinder is fixed on gathering sill one end away from horse head, and the cylinder body of described cylinder is connected with balancing weight.
Above-mentioned a kind of beam pumping unit based on motion counterweight, is characterized in that: described driving wheel is gear, and described first driving-belt is chain.
The utility model compared with prior art has the following advantages:
1, structure of the present utility model is simple, rationally novel in design.
2, the utility model is by setting up balancing weight, drive horse head descending by its change in location when balancing weight moves up along gathering sill under a stretching force, when balancing weight freely moves down along gathering sill, utilize the Action of Gravity Field of balancing weight effectively to drive horse head up, save the up required power source of horse head.
3, the utility model is by arranging switching device, can realize the mounting mutually of link and hook effectively and rapidly or be separated.
4, the utility model by arranging roller on balancing weight, improves balancing weight along speed gathering sill moved or moves down, cause balancing weight to move not smooth when effectively avoiding balancing weight and gathering sill to be slidably matched because frictional force is excessive.
5, of the present utility model to realize cost low, and result of use is good, is convenient to promote the use of.
In sum, the utility model structure is simple, and rationally novel in design, functional reliability is high, long service life, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged drawing at A place in Fig. 1.
Fig. 3 is the using state reference diagram of the utility model when coordinating with drive unit.
Description of reference numerals:
1-stand; 1-1-upper plate; 1-2-rotating shaft installing plate;
2-walking beam; 3-link; 4-balancing weight;
5-pull rope; 6-gathering sill; 7-guide wheel;
8-drive link; 9-spacing pin; 10-extension rod;
11-runner; 12-back-moving spring; 13-drawstring;
14-the first driving-belt; 15-driving wheel; 16-driven pulley;
17-rotating shaft; 18-horse head; 19-rod collar;
20-hook; 21-switching device; 21-1-lever;
21-2-cross bar; 21-3-extension spring; 21-4-brace;
23-drive unit; 23-1-drive motors; 23-2-reducer;
23-3-driving pulley; 23-4-base; 23-5-the second driving-belt;
23-6-cylinder mechanism; 23-6-1-the first bearing; 23-6-2-driven pulley;
23-6-3-crank; 23-6-4-connecting rod; 23-6-5-the second bearing;
23-6-6-cylinder; 23-7-the 3rd directive wheel; 23-8-the 4th directive wheel;
23-9-the three abutments; 23-10-substrate; 23-11-the first directive wheel;
23-12-the second directive wheel; 24-pulling rope; 25-cylinder.
Detailed description of the invention
A kind of beam pumping unit based on motion counterweight as depicted in figs. 1 and 2, the walking beam 2 comprising stand 1 and be hinged in described stand 1, one end of described walking beam 2 is provided with horse head 18, described horse head 18 is connected with rod collar 19, position away from horse head 18 on described walking beam 2 offers gathering sill 6, described gathering sill 6 extends along the length direction of walking beam 2, be provided with in described gathering sill 6 for the balancing weight 4 along gathering sill 6 movement, the top described stand 1 being positioned at walking beam 2 is provided with rotating shaft 17, described rotating shaft 17 is provided with driving wheel 15 and driven pulley 16, described driven pulley 16 is fixed with the drawstring 13 for balancing weight described in tractive 4, described stand 1 is provided with the extension rod 10 to extending away from horse head 18 side, described extension rod 10 is hinged with runner 11, described runner 11 is installed with drive link 8, described drive link 8 is L shape bar, described extension rod 10 is provided with the spacing pin 9 for limiting rotational angle when drive link 8 rotates counterclockwise with runner 11, on described driving wheel 15, cover has the first driving-belt 14, one end of described first driving-belt 14 is connected with one end of drive link 8, the other end of described drive link 8 is connected with walking beam 2 by pull rope 5, the other end of described first driving-belt 14 is connected with described spacing pin 9 by back-moving spring 12, the line length of described pull rope 5 has surplus, described balancing weight 4 is provided with link 3, be provided with in described gathering sill 6 hook 20 with for controlling the switching device 21 that described hook 20 mounts mutually with described link 3 or is separated, described walking beam 2 is connected with the pulling rope 24 for driving walking beam 2 to rotate away from one end of horse head 18.
In the present embodiment, should based on the beam pumping unit of motion counterweight in use, walking beam 2 is pulled by pulling rope 24, walking beam 2 tail end starts descending, when walking beam 2 tail end is near lower limit position time (about 30 centimeters), the pull rope 5 now with line length surplus starts to stretch directly, drive link 8 is pulled by pull rope 5 along with when walking beam 2 tail end continues descending, described drive link 8 drives runner 11 to rotate, described drive link 8 pulls the first driving-belt 14 and then drives driving wheel 15 while rotation, described driving wheel 15 drives driven pulley 16 to rotate by rotating shaft 17, when described driven pulley 16 rotates by drawstring 13 drive balancing weight 4 in gathering sill 6 on move, when moving to upper extreme position on balancing weight 4 is in gathering sill 6, now walking beam 2 tail end goes downwards to lower limit position, horse head 18 goes upward to upper extreme position, and simultaneously under the effect of described switching device 21, described balancing weight 4 is mounted by link 3 and hook 20 phases, when pulling rope 24 removes the pulling force to walking beam 2, now walking beam 2 tail end is up, while walking beam 2 tail end is up, the pulling force to drive link 8 removed by described pull rope 5, under the effect of back-moving spring 12, described driving wheel 15 and driven pulley 16 all return back to initial position, when walking beam 2 tail end goes upward to distance about 5 centimeters of upper extreme position, under the effect of described switching device 21, link 3 on described balancing weight 4 is separated with hook 20, balancing weight 4 moves down along gathering sill 6, described balancing weight 4 drive while moving down horse head 18 rapidly on move, now the tail end of walking beam 2 is descending, when walking beam 2 tail end comes downwards to about apart from its lower limit position 30 centimeters, pull rope 5 is stretched directly again, drive link 8 is exerted a force, start next circulation.
In the present embodiment, by setting up balancing weight 4, balancing weight 4 moves up along gathering sill 6 under a stretching force, and when freely being moved down along gathering sill 6 by balancing weight 4, the Action of Gravity Field of balancing weight 4 is utilized can effectively to drive horse head 18 up, saved horse head 18 up time required power, effectively saved the energy.
As shown in Figure 3, can should support the use with drive unit 23 based on the beam pumping unit of motion counterweight, in the present embodiment, four beam pumping units based on motion counterweight are driven by a drive unit 23, and described drive unit 23 comprises drive motors 23-1, reducer 23-2 and cylinder mechanism 23-6, described cylinder mechanism 23-6 comprises the first bearing 23-6-1, second bearing 23-6-5, cylinder 23-6-6 and driven pulley 23-6-2, described driven pulley 23-6-2 is rotatably installed on the first bearing 23-6-1, described cylinder 23-6-6 is rotatably installed on the second bearing 23-6-5, the two ends of described driven pulley 23-6-2 central axis are all provided with crank 23-6-3, the two ends of described cylinder 23-6-6 are all provided with to hocket the connecting rod 23-6-4 rotated and reverse for head roll 23-6-6 under the drive of crank 23-6-3, one end of described connecting rod 23-6-4 is arranged on the end face of cylinder 23-6-6, the other end and the crank 23-6-3 of described connecting rod 23-6-4 are hinged, the output shaft of described drive motors 23-1 is connected with the power shaft of reducer 23-2, and the output shaft of described reducer 23-2 is provided with driving pulley 23-3, and described driving pulley 23-3 is connected by the second driving-belt 23-5 with driven pulley 23-6-2, substrate 23-10 should be provided with based between the beam pumping unit of motion counterweight and base 23-4, position near substrate 23-10 on described base 23-4 is provided with three abutments 23-9, described substrate 23-10 is provided with two the first directive wheel 23-11 and two the second directive wheel 23-12, described three abutments 23-9 is vertically provided with two fixed axis, each described fixed axis is rotatablely equipped with the 3rd directive wheel 23-7 and the 4th directive wheel 23-8.
During use, described drive unit 23 in use, the power that drive motors 23-1 exports transfers to driving pulley 23-3 after reducer 23-2, described driving pulley 23-3 passes through the second driving-belt 23-5 by power transmission on driven pulley 23-6-2, crank 23-6-3 is driven to do gyration when described driven pulley 23-6-2 rotates, described crank 23-6-3 is while doing gyration, cylinder 23-6-6 is driven to rotate by connecting rod 23-6-4, when crank 23-6-3 does rev motion (rotating counterclockwise), cylinder 23-6-6 hockets and once rotates forward (rotating counterclockwise) and once reverse (rotating clockwise), cylinder 23-6-6 rotates forward once or reversion angle is once probably quadrant, when cylinder 23-6-6 rotates forward, in the middle of driving, two walking beam 2 tail ends based on the beam pumping unit of motion counterweight are descending, middle two one end based on the pulling rope 24 of the beam pumping unit of motion counterweight are connected with the tail end of walking beam 2 successively after the 4th directive wheel 23-8 guides with the first directive wheel 23-11, when cylinder 23-6-6 reverses, pulling rope 24 is by up for two walking beam 2 tail ends based on the beam pumping unit of motion counterweight in drive outside, two one end based on the pulling rope 24 of the beam pumping unit of motion counterweight, outside are connected with walking beam 2 tail end after the second directive wheel 23-12 through the 3rd directive wheel 23-7 successively, when middle two walking beam 2 tail ends based on the beam pumping unit of motion counterweight are up, two walking beam 2 tail ends based on the beam pumping unit of motion counterweight in outside are descending, middle two beam pumping units based on motion counterweight and the beam pumping unit of two, outside based on motion counterweight hocket, and then the many wells of a machine can be realized, improve oil recovery efficiency, it achieves under same Power output, improve the utilization rate of kinetic energy to greatest extent.
As shown in Figure 2, the cross bar 21-2 that described switching device 21 comprises lever 21-1 and is fixedly connected with described gathering sill 6, the middle part of described lever 21-1 is hinged on described cross bar 21-2, described hook 20 is arranged on one end of described lever 21-1, the other end of described lever 21-1 is installed with brace 21-4, described stand 1 is provided with the upper plate 1-1 matched with described brace 21-4, described lever 21-1 is connected with the groove bottom wall of described gathering sill 6 by extension spring 21-3 near the position of hook 20.
In the present embodiment, described switching device 21 in use, when moving on balancing weight 4 is under the pulling of drawstring 13, and when link 3 touches hook 20, hook 20 mounts mutually with link 3, now walking beam 2 tail end is positioned at lower limit position, when walking beam 2 tail end starts up, and when walking beam 2 tail end goes upward to distance about 5 centimeters of upper extreme position, upper plate 1-1 can drive brace 21-4, and then make lever 21-1 overcome the pulling force of extension spring 21-3 and the pin joint around itself and cross bar 21-2 rotates, thus make link 3 and hook 20 depart from mounting cooperation, balancing weight 4 starts to move down along gathering sill 6, and then under the Action of Gravity Field of balancing weight 4, pull horse head 18 up.Described switching device 21 structure is simple, can realize the mounting mutually of link 3 and hook 20 effectively and rapidly or be separated.
In the present embodiment, the top of described stand 1 is provided with rotating shaft installing plate 1-2, and described rotating shaft 17 is arranged on described rotating shaft installing plate 1-2, and described upper plate 1-1 is arranged on described rotating shaft installing plate 1-2.
In the present embodiment, the bottom of described balancing weight 4 is provided with for rolling the roller coordinated with described gathering sill 6.By arranging roller on balancing weight 4, improve balancing weight 4 along speed gathering sill 6 moved or moves down, causing balancing weight 4 to move because frictional force is excessive when effectively avoiding balancing weight 4 and gathering sill 6 to be slidably matched not smooth.
As shown in Figure 1, described driven pulley 16 is semicircle, the outer circumference surface of described driven pulley 16 offers the groove entered for described drawstring 13.
In the present embodiment, when described driven pulley 16 rotates half-turn, namely by drawstring 13, balancing weight 4 is pulled to hook 20 place, so, by driven pulley 16 is designed to semicircle, saves making material, and saved installing space.In addition, be provided with groove owing to being located on driven pulley 16, and then effectively can guide drawstring 13.
As shown in Figure 1, described drive link 8 being provided with the guide wheel 7 for guiding pull rope 5 downwards, the outer circumference surface of described guide wheel 7 offering the guiding groove entered for described pull rope 5, described guide wheel 7 is semicircle.By the guide wheel 7 that arranges semicircular in shape and the guiding groove be arranged on described guide wheel 7, thus effectively achieve pull rope 5 is guided downwards.
As shown in Figure 1, be provided with cylinder 25 in described gathering sill 6, the piston rod of described cylinder 25 is fixed on gathering sill 6 one end away from horse head 18, and the cylinder body of described cylinder 25 is connected with balancing weight 4.By arranging cylinder 25, speed when balancing weight 4 moves down effectively can be controlled.
In the present embodiment, described driving wheel 15 is gear, and described first driving-belt 14 is chain.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solutions of the utility model.
Claims (7)
1. the beam pumping unit based on motion counterweight, it is characterized in that: comprise stand (1) and be hinged on the walking beam (2) in described stand (1), one end of described walking beam (2) is provided with horse head (18), described walking beam (2) offers gathering sill (6) away from the position of horse head (18), described gathering sill (6) extends along the length direction of walking beam (2), balancing weight (4) is provided with in described gathering sill (6), the top described stand (1) being positioned at walking beam (2) is provided with rotating shaft (17), described rotating shaft (17) is provided with driving wheel (15) and driven pulley (16), described driven pulley (16) is fixed with the drawstring (13) for balancing weight described in tractive (4), described stand (1) is provided with the extension rod (10) to extending away from horse head (18) side, described extension rod (10) is hinged with runner (11), described runner (11) is installed with drive link (8), described drive link (8) is L shape bar, described extension rod (10) is provided with the spacing pin (9) matched with described drive link (8), the upper cover of described driving wheel (15) has the first driving-belt (14), one end of described first driving-belt (14) is connected with one end of drive link (8), the other end of described drive link (8) is connected with walking beam (2) by pull rope (5), the other end of described first driving-belt (14) is connected with described spacing pin (9) by back-moving spring (12), the line length of described pull rope (5) has surplus, described balancing weight (4) is provided with link (3), be provided with in described gathering sill (6) hook (20) with for controlling the switching device (21) that described hook (20) and described link (3) mount mutually or be separated, described walking beam (2) is connected with the pulling rope (24) for driving walking beam (2) to rotate away from one end of horse head (18).
2. a kind of beam pumping unit based on motion counterweight according to claim 1, it is characterized in that: the cross bar (21-2) that described switching device (21) comprises lever (21-1) and is fixedly connected with described gathering sill (6), the middle part of described lever (21-1) is hinged on described cross bar (21-2), described hook (20) is arranged on one end of described lever (21-1), the other end of described lever (21-1) is installed with brace (21-4), described stand (1) is provided with the upper plate (1-1) matched with described brace (21-4), described lever (21-1) is upper to be connected with the groove bottom wall of described gathering sill (6) by extension spring (21-3) near the position of hook (20).
3. a kind of beam pumping unit based on motion counterweight according to claim 1, is characterized in that: the bottom of described balancing weight (4) is provided with for rolling the roller coordinated with described gathering sill (6).
4. a kind of beam pumping unit based on motion counterweight according to claim 1, it is characterized in that: described driven pulley (16), for semicircle, the outer circumference surface of described driven pulley (16) offers the groove entered for described drawstring (13).
5. a kind of beam pumping unit based on motion counterweight according to claim 1, it is characterized in that: described drive link (8) is provided with the guide wheel (7) for guiding pull rope (5) downwards, the outer circumference surface of described guide wheel (7) offers the guiding groove entered for described pull rope (5), described guide wheel (7) is semicircle.
6. a kind of beam pumping unit based on motion counterweight according to claim 1, it is characterized in that: in described gathering sill (6), be provided with cylinder (25), the piston rod of described cylinder (25) is fixed on gathering sill (6) one end away from horse head (18), and the cylinder body of described cylinder (25) is connected with balancing weight (4).
7. a kind of beam pumping unit based on motion counterweight according to claim 1, is characterized in that: described driving wheel (15) is gear, described first driving-belt (14) is chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520681960.9U CN204920918U (en) | 2015-09-06 | 2015-09-06 | Beam -pumping unit based on motion counter weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520681960.9U CN204920918U (en) | 2015-09-06 | 2015-09-06 | Beam -pumping unit based on motion counter weight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204920918U true CN204920918U (en) | 2015-12-30 |
Family
ID=54970055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520681960.9U Expired - Fee Related CN204920918U (en) | 2015-09-06 | 2015-09-06 | Beam -pumping unit based on motion counter weight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204920918U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065705A (en) * | 2016-06-14 | 2016-11-02 | 广西大学 | A kind of anti-pollution hand-held wall plastering apparatus being automatically adjusted receiver position by gravity mechanism |
| CN107218014A (en) * | 2017-05-15 | 2017-09-29 | 浙江西传电气科技有限公司 | A kind of cantilever rotates resilient structures after resigning |
| CN107780889A (en) * | 2017-12-16 | 2018-03-09 | 吕传庆 | A kind of Straight pull oil pumper |
| CN109707346A (en) * | 2018-11-21 | 2019-05-03 | 沈阳人和机电工程设备有限公司 | A kind of moveable pumping unit of counterweight center of gravity |
| CN110593915A (en) * | 2019-10-09 | 2019-12-20 | 中国铁建重工集团股份有限公司 | Full-face tunnel tunneling system and segment erector thereof |
-
2015
- 2015-09-06 CN CN201520681960.9U patent/CN204920918U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065705A (en) * | 2016-06-14 | 2016-11-02 | 广西大学 | A kind of anti-pollution hand-held wall plastering apparatus being automatically adjusted receiver position by gravity mechanism |
| CN107218014A (en) * | 2017-05-15 | 2017-09-29 | 浙江西传电气科技有限公司 | A kind of cantilever rotates resilient structures after resigning |
| CN107218014B (en) * | 2017-05-15 | 2024-01-12 | 浙江西传电气股份有限公司 | Springback structure after cantilever rotation abdication |
| CN107780889A (en) * | 2017-12-16 | 2018-03-09 | 吕传庆 | A kind of Straight pull oil pumper |
| CN109707346A (en) * | 2018-11-21 | 2019-05-03 | 沈阳人和机电工程设备有限公司 | A kind of moveable pumping unit of counterweight center of gravity |
| CN110593915A (en) * | 2019-10-09 | 2019-12-20 | 中国铁建重工集团股份有限公司 | Full-face tunnel tunneling system and segment erector thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204920918U (en) | Beam -pumping unit based on motion counter weight | |
| CN206156649U (en) | Row of colliery winch collection device that restricts | |
| CN202152669U (en) | Direct-drive drum full-balanced pumping unit | |
| CN110761745B (en) | Wheel shaft type energy-saving beam-pumping unit | |
| CN104895532A (en) | Chain transmission reversing and short support double long-stroke oil pumping machine and using method thereof | |
| CN106150442A (en) | A kind of novel auxiliary beam-pumping unit of Balance type | |
| CN201492369U (en) | Double telescopic transverse arm mechanism for window cleaning machine | |
| CN202325429U (en) | Long-stroke dual-well oil pumping unit | |
| CN202990988U (en) | Double-chain oil pumping unit | |
| CN104329058A (en) | Synchronous belt-reversing pumping unit and method | |
| CN201953357U (en) | Novel roller-type oil pumping machine | |
| CN201173370Y (en) | Vertical lifting device | |
| CN209442544U (en) | Mast cantilever crane | |
| CN201144673Y (en) | Balanced type trolley type oil pumping machine | |
| WO2008052381A1 (en) | A wheel type pumping unit | |
| CN203097842U (en) | Driving device of oil pumping device | |
| CN202914047U (en) | Trussed type electrical-reversing oil pumping device | |
| CN202073537U (en) | Energy saving twin-well eoil-pumping unit | |
| CN102852487A (en) | Horizontal dual-chain pulley guide long constant speed balanced pumping unit | |
| CN207228733U (en) | A kind of conveying mechanism and vehicle-carrying plate interactive device | |
| CN204804782U (en) | Energy -saving beam -pumping unit | |
| CN206346724U (en) | A kind of tower-type electric-machine directly-driven oil pumper | |
| CN2851556Y (en) | Floor type electronically-controlled friction pumping unit | |
| CN205778617U (en) | Oil pipe carrying device | |
| CN116545177B (en) | Lever type generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20170906 |