CN206144537U - Intelligent does not have walking beam hydraulic pumping unit's hydraulic system - Google Patents
Intelligent does not have walking beam hydraulic pumping unit's hydraulic system Download PDFInfo
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- CN206144537U CN206144537U CN201621138430.0U CN201621138430U CN206144537U CN 206144537 U CN206144537 U CN 206144537U CN 201621138430 U CN201621138430 U CN 201621138430U CN 206144537 U CN206144537 U CN 206144537U
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- walking beam
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- pumping unit
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Abstract
The utility model relates to an intelligent does not have walking beam hydraulic pumping unit's hydraulic system belongs to the oil gas field and takes out the equipment of adopting technical field. Technical scheme is: the pneumatic cylinder provides power by the hydraulic pressure station, promotes lifting pulley through the pneumatic cylinder and drives the polished rod and do reciprocal work, through two -way pressure distributor (7) and energy storage ware (1), store the gravitional force of down stroke to release when the upstroke, the loading force that produces in the work and stroke are by sensor measurements to in conveying to intelligent electrical system's the electric cabinet, save with the indicator card form. The utility model discloses have two kinds of mode of switching -over and speed governing switching -over, realize the automatic control of changing oil according to the real work condition. Remote control variable piston pump realizes that equilibrium rate adjusts in real time. The system adopts two -way pressure distributor and accumulator group to close, retrieves the gravitional force of down stroke, release gravitional force acting when the upstroke to reduce the complete machine energy consumption, realize energy -conservingly.
Description
Technical field
The utility model is related to a kind of intellectual hydraulic system without walking beam hydraulic pumping unit, belongs to oil gas field extraction equipment
Technical field.
Background technology
At present, it is made up of main frame, Hydraulic Station and electric-control system substantially without walking beam hydraulic pumping unit in the world；No matter main frame
It is which kind of form, it is all finally to drive the upper and lower perseveration of polished rod to realize work by the reciprocating action of hydraulic cylinder.Typically
Reclaim with down stroke potential energy（Energy storage）Hydraulic system potential energy recycling is carried out by modes such as flywheel, spring, accumulators.
There is problems with background technology：Because the intraluminal fluid that hydraulic cylinder or nonstandard distributor are connected with master cylinder and accumulator presses oil nothing
Method is circulated, through frequently commutation repeated stock, work long hours there may be it is poorly sealed it is slight in let out phenomenon, if without phase
The automatic compensatory approach answered, will result in because oil starvation causes stroke situation not in place and out-of-work, or cannot be automatic for a long time
Operation, needs periodically manually carry out repairing of changing oil.Balanced ratio problem is there is also without walking beam hydraulic pumping unit, if without corresponding
Automatic adjustment method, can be such that oil pumper is operated under nonequilibrium condition, reduce system effectiveness and life-span, affect the normal of oil well pump
Work.
The content of the invention
The utility model purpose is to provide a kind of intellectual hydraulic system without walking beam hydraulic pumping unit, using bidirectional hydraulic
Distributor is combined with accumulator, reclaims the gravitional force of down stroke, gravitional force acting is discharged in upstroke, to reduce whole machine
Energy consumption, realizes energy-conservation；Commutate two kinds of mode of operations with commutation and speed governing, and can according to real work situation and season it is different come
Realization is changed oil automatically.System energy real-time detection balanced ratio, and regulation is balanced automatically, the balanced ratio for making oil pumper is remained
In setting range, the problems referred to above present in background technology are solved.
The technical solution of the utility model is：
A kind of intellectual hydraulic system without walking beam hydraulic pumping unit, for the intellectual without walking beam liquid of single-action hydraulic cylinder
Pressure oil pumper, is made up of Hydraulic Station and Intelligent electronic control system；
Hydraulic Station is included：Fuel tank, valve group, bidirectional hydraulic distributor, accumulator and hydraulic motor, bidirectional hydraulic distributor one
Side is connected with the intellectual hydraulic cylinder without walking beam hydraulic pumping unit, and opposite side is connected with accumulator, and the connection liquid after valve group
Pressure motor and fuel tank, reclaim to potential energy；Intelligent electronic control system is included：Multiple sensors and electric cabinet, multiple sensors point
It is not arranged on intellectual without on walking beam hydraulic pumping unit and Hydraulic Station, the output end of multiple sensors is connected with electric cabinet；
The hydraulic motor of the Hydraulic Station is made up of Variable plunger pump and motor, and sets cooling fan, Variable plunger pump with
Motor connection, cooling fan is arranged on Variable plunger pump and motor side；The Variable plunger pump is by bidirectional relief valve and electricity
Magnetic reversal valve four is controlled, and bidirectional relief valve and solenoid directional control valve four realize that the switching of Variable plunger pump high-low pressure completes balance adjustment.
In oil extraction operation, hydraulic cylinder provides power by Hydraulic Station, drives polished rod to do past by Hydraulic Cylinder lifting pulley
Return to work work；By bidirectional hydraulic distributor and accumulator, the gravitional force of down stroke is stored, and carried out in upstroke
Release, reducing energy consumption；The loading force and stroke produced in work is measured by sensor, and is sent to the automatically controlled of Intelligent electronic control system
In case；Jing after data analysis processor, with the storage of indicator card form.
The intellectual stroke without walking beam hydraulic pumping unit is adjustable, arranges on the touch-screen of electric cabinet, bracing wire displacement sensing
Device measures in real time the actual displacement of hydraulic cylinder works, and when setting stroke is reached, upper limit position or lower position control Hydraulic Station
Commutated；When causing hydraulic cylinder to be unable to reach maximum setting stroke position if as the situation of letting out in existing in hydraulic cylinder, enter
Row is changed oil or repairing operation automatically, complete to change oil automatically or repairing after, normal operating conditions is put into again.System real-time detection is put down
Weighing apparatus rate, over balance rate setting range is adjusted to the oil pressure in accumulator and bidirectional hydraulic distributor（Repairing and drain the oil）,
To balance of well pumping unit rate real-time regulation so as to reach setting range.
The Intelligent electronic control system, is additionally provided with radio station's integrated transmission system, and by radio station multiple stage intelligence is realized
Network management of the formula without walking beam hydraulic pumping unit.
The bidirectional hydraulic distributor of the Hydraulic Station is combined with accumulator, the gravitional force of down stroke is reclaimed, in upstroke
When release gravitional force acting, to reduce whole function consumption, realize energy-conservation；With commutated and speed governing commutate two kinds of Working moulds
Formula, and realize changing oil automatically or repairing operation.
The Variable plunger pump of the Hydraulic Station（DRG）, the bidirectional relief valve and solenoid directional control valve four in valve group can be passed through
Control, between high-low pressure switch（High-low pressure value is adjusted manually by bidirectional relief valve）.When the balanced ratio of oil pumper is beyond setting
During scope, system needs to repairing in accumulator and bidirectional hydraulic distributor or drains the oil, and is at this moment switched to high pressure, completes repairing
Or after draining the oil, Variable plunger pump switches back into low pressure, oil pumper works on.
The Hydraulic Station and Intelligent electronic control system, take out as an over all Integration together with intellectual without walking beam hydraulic pressure
Oil machine is arranged apart, middle to be connected using oil pipe, is not limited by oil well operation region.
The hydraulic motor of the Hydraulic Station is made up of Variable plunger pump and motor, and sets cooling fan, and hydraulic oil radiating is cold
But without the need for supplying water.
The Hydraulic Station can do individual well and use, and can also do twin-well and use.
The sensor of the Intelligent electronic control system, multiple sensors of the Intelligent electronic control system, including：For stroke survey
The sensor of amount, using stay-supported type displacement sensor, is arranged on hydraulic cylinder side；For the sensor of polished rod load power measurement,
Using on-line checking formula pressure sensor, it is arranged on intellectual without on walking beam hydraulic pumping unit.And in the dead up and down of host rack
Point position, respectively equipped with a limitation travel switch, for stroke switching.
The valve group of the Hydraulic Station, including proportional reversing valve, solenoid directional control valve one, solenoid directional control valve two, solenoid directional control valve
3rd, overflow magnetic valve, hydraulic control one-way valve, superposing type choke valve, bidirectional relief valve, solenoid directional control valve four；Upper and lower stroke switching
In, realize that commutation is adjusted using solenoid directional control valve and proportional reversing valve；Changed oil automatically by two solenoid directional control valves
Operation.
The utility model good effect：With commutation and speed governing two kinds of mode of operations of commutation, and can be according to real work feelings
Condition and season difference are combined realizing control of changing oil automatically using bidirectional hydraulic distributor with accumulator, reclaim the weight of down stroke
Power potential energy, gravitional force acting is discharged in upstroke, to reduce whole function consumption, realizes energy-conservation.
Description of the drawings
Fig. 1 is the utility model hydraulic system principle figure；
In figure：1. accumulator, 2. hydraulic cylinder, 3. high-pressure ball valve, 4. Variable plunger pump, 5. compensator, 6. pressure relay
Device, 7. bidirectional hydraulic distributor, 8. motor, 9. proportional reversing valve, 10. solenoid directional control valve one, 11. solenoid directional control valves two, 12.
Overflow magnetic valve, 13. solenoid directional control valves three, 14. cooling fans, 15. return filters, 16. stacked unidirectional valves, 17. liquid
Control check valve one, 18. hydraulic control one-way valves two, 19. fuel tanks, 20. solenoid directional control valves four, 21. bidirectional relief valves；
Fig. 2 is the utility model embodiment electric cabinet layout drawing；
Fig. 3 is the utility model embodiment electric cabinet exterior view；
In figure：22. disconnecting switch, 23. soft initiators, 24. contactors, 25. breakers, 26.DC24V dc sources, 27.
Miniature circuit breaker, 28.PLC controllers, 29. auxiliary reclays, 30. terminals, 31. intelligent electric power tables, 32. touch-screens, 33. operations
Button；
Fig. 4 is the two-way pressure distributor form schematic diagram of the utility model embodiment one；
In figure：Bidirectional hydraulic distributor is docked with one heart using Double-hydraulic cylinder rod；
Fig. 5 is the bidirectional hydraulic distributor form schematic diagram of the utility model embodiment two；
In figure：Bidirectional hydraulic distributor mutually pushes away mode using the distributor in four chambers of nonstandard making double-piston.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further by embodiment.
A kind of intellectual hydraulic system without walking beam hydraulic pumping unit, for the intellectual without walking beam liquid of single-action hydraulic cylinder
Pressure oil pumper, is made up of Hydraulic Station and Intelligent electronic control system；
Hydraulic Station is included：Fuel tank 19, valve group, bidirectional hydraulic distributor 7 and accumulator 1, the side of bidirectional hydraulic distributor 7 with
The intellectual connection of the hydraulic cylinder without walking beam hydraulic pumping unit, opposite side is connected with accumulator 1, and the link variable post after valve group
Plug pump 4 and fuel tank 19, reclaim to potential energy, realize moving certainly by the combination of the solenoid directional control valve in valve group and hydraulic control one-way valve
Oil；Bidirectional relief valve and solenoid directional control valve four realize that the switching of Variable plunger pump high-low pressure completes balance adjustment；
Intelligent electronic control system is included：Sensor and electric cabinet, multiple sensors are separately positioned on intellectual without walking beam hydraulic pressure
Oil pumper and its Hydraulic Station.
In oil extraction operation, hydraulic cylinder provides power by Hydraulic Station, drives polished rod to do past by Hydraulic Cylinder lifting pulley
Return to work work；By bidirectional hydraulic distributor 7 and accumulator 1, the gravitional force of down stroke is stored, and entered in upstroke
Row release, reducing energy consumption；The loading force and stroke produced in work is measured by sensor, and is sent to the electricity of Intelligent electronic control system
In control case；Jing after data analysis processor, with the storage of indicator card form.
The bidirectional hydraulic distributor of the Hydraulic Station is combined with accumulator, the gravitional force of down stroke is reclaimed, in upstroke
When release gravitional force acting, to reduce whole function consumption, realize energy-conservation；With commutated and speed governing commutate two kinds of Working moulds
Formula, and realize changing oil automatically or repairing operation and automatic real-time regulation balanced ratio.The intellectual stroke without walking beam hydraulic pumping unit
It is adjustable；Balanced ratio is adjustable；Can arrange on the touch-screen 32 of electric cabinet.Stay wire displacement sensor measures in real time hydraulic cylinder works
Actual displacement, when setting stroke is reached, upper limit position or lower position, control Hydraulic Station is commutated；If as hydraulic pressure
When the situation of letting out causes hydraulic cylinder to be unable to reach maximum setting stroke position in existing in cylinder, changed oil automatically or repairing operation,
Complete to change oil automatically or repairing after, normal operating conditions is put into again.System real-time detection balanced ratio, over balance rate setting model
Enclose, the oil pressure in accumulator and bidirectional hydraulic distributor is adjusted（Repairing and drain the oil）, balance of well pumping unit rate is adjusted in real time
Section so as to reach setting range.
Hydraulic Station job step is as follows：
Down stroke is moved：The hydraulic oil all the way of fuel tank, exports from the Variable plunger pump 4 of Hydraulic Station, Jing overflows magnetic valve 12
Into the B chambers of bidirectional hydraulic distributor 7；Another road hydraulic oil, in the case where polished rod is by Action of Gravity Field drive, hydraulic stem is downward at the uniform velocity
Motion, is expelled back into Hydraulic Station, into the A1 of bidirectional hydraulic distributor 7 by the oil in hydraulic cylinder 2 from the hydraulic fluid port of the bottom of hydraulic cylinder 2
Chamber；Under two-way hydraulic oil collective effect, the piston of bidirectional hydraulic distributor 7 is set to move to the B1 cavity directions of bidirectional hydraulic distributor 7,
The A chambers oil of bidirectional hydraulic distributor 7, Jing after cooling fan 14 is cooled down, oil return box 19, the B1 chambers oil of bidirectional hydraulic distributor 7, quilt
Store into accumulator 1 after extruding；When hydraulic cylinder travel is to bottom dead centre（Displacement sensor value reaches setting lower limit
Value）, or triggering bottom dead centre limitation travel switch, the commutation of solenoid directional control valve 2 11 of Hydraulic Station, terminate down stroke motion.
During upstroke：The hydraulic oil all the way of fuel tank, exports from the Variable plunger pump 4 of Hydraulic Station, and Jing overflows magnetic valve 12 enters
Enter the A chambers of bidirectional hydraulic distributor 7；Another road hydraulic oil is discharged from the outlet of accumulator 1, into the B1 of bidirectional hydraulic distributor 7
Chamber；Under two-way hydraulic oil collective effect, the piston of bidirectional hydraulic distributor 7 is set to move to the A1 cavity directions of bidirectional hydraulic distributor 7,
The B chambers oil of bidirectional hydraulic distributor 7, the oil return box 19 Jing after cooling fan 14 is cooled down；In the A1 chambers of bidirectional hydraulic distributor 7
Oil, exports from bidirectional hydraulic distributor 7, into the oil-in of the bottom of hydraulic cylinder 2, drives piston upwards, the stroke of hydraulic cylinder 2
During to top dead-centre（Displacement sensor value reaches setting upper limit place value）, or triggering top dead-centre limitation travel switch, Hydraulic Station
Solenoid directional control valve 2 11 commutate, terminate upstroke motion.
Also by switching proportional reversing valve 9 can be taken to control up-down stroke speed, reaches the effect of stepless time adjustment.
Automatically change oil（Repairing）：Automatically change oil（Repairing）Can be set according to four seasons different demands, be timed and change oil, it is main
The heat dissipation problem in the A1 chambers of bidirectional hydraulic distributor 7 and the intraluminal fluid of hydraulic cylinder 2 force feed is solved, while realizing timing repairing.Also may be used
To determine a need for repairing according to the stroke of actual hydraulic pressure cylinder, if normal work for a period of time after, hydraulic cylinder is not reached
When upper limit setting value（There may be oil leak situation）, system is judged to need repairing, at this moment changed oil automatically（Mend
Oil）.If letting out situation in slight, can be solved by automatic repairing operation, when system completes to change oil automatically（Repairing）
After program, proceed normal operating conditions.
Automatically change oil（Repairing）：When meeting timing condition, when hydraulic cylinder action is to lower limit setting value position, start to change oil
Program.If when oil leak situation causes hydraulic cylinder to be unable to reach setting upper limit, at this moment first hydraulic cylinder is down to into lower limit（Protect
Main frame is parked in bottom dead centre when card is changed oil）Guarantee safety, then start the program of changing oil.
Change oil program：Solenoid directional control valve 1 and the oil return of solenoid directional control valve 3 13 first, the B1 chambers of bidirectional hydraulic distributor 7
And the oily oil return box in accumulator 1, oily oil return box in the A1 chambers of bidirectional hydraulic distributor 7, in bidirectional hydraulic distributor A1, B1 chambers
After oil all oil return boxes, at this moment solenoid directional control valve 2 11 is to oil supply in bidirectional hydraulic distributor A chambers（Walk up stroke）, while electromagnetism is changed
To valve 1 to oil supply in the B1 chambers of bidirectional hydraulic distributor 7, it is full of with oil in accumulator when the B1 chambers of bidirectional hydraulic distributor 7
When (reaching certain pressure), solenoid directional control valve 2 11 commutates and gives bidirectional hydraulic distributor 7B chambers oil supply（Walk down stroke）, while electric
Magnetic reversal valve 3 13 is complete when oil is filled in the A1 chambers of bidirectional hydraulic distributor 7 to oiling in the A1 chambers of bidirectional hydraulic distributor 7
Into changing oil（Repairing）Program, at this moment solenoid directional control valve 1 and solenoid directional control valve 3 13 return to centre position, and by fluid-control one-way
Valve 1, hydraulic control one-way valve 2 18 ensure will not oil return.Working condition is then proceeded by, restarts upstroke.
Balanced ratio is adjusted：During normal operating conditions, system real-time detection balanced ratio.Calculated according to the up-down stroke cycle flat
Weighing apparatus rate.Balanced ratio sets certain limit（Percentage）If the upstroke cycle is more than the down stroke cycle, more than setting percentage
When, system judges that balance is light, when hydraulic cylinder reaches top dead-centre, hydraulic cylinder stop motion, and the oil circuit control Jing of Variable plunger pump
Jing bidirectional relief valves 21 after the commutation of solenoid directional control valve 4 20, are switched to high pressure, after at this moment variable piston pump output pressure is improved
（More than oil pressure in the B1 chambers of bidirectional hydraulic distributor 7 and accumulator）, solenoid directional control valve 2 11 commutates and gives bidirectional hydraulic distributor
7 B1 chambers and repairing in accumulator one second, solenoid directional control valve 4 20 commutates after repairing, and Variable plunger pump switches back into low pressure, hydraulic pressure
Cylinder is resumed work, and downwards down stroke is walked in commutation for continuation.
If the down stroke cycle is more than the upstroke cycle, during more than setting percentage, system judges balance weight, works as hydraulic cylinder
When reaching bottom dead centre, hydraulic cylinder stop motion, the oil circuit control of the Variable plunger pump Jing Jing after the commutation of solenoid directional control valve 4 20
Bidirectional relief valve 21, is switched to high pressure, and after at this moment variable piston pump output pressure is improved, solenoid directional control valve 2 11 commutates, double
To the B1 chambers of pressure distributor 7 and accumulator oil return one second, solenoid directional control valve 4 20 commutated after oil return, Variable plunger pump switching
Low pressure is returned, hydraulic cylinder is resumed work and continues up commutation and walk upstroke.
After having adjusted every time, normal work calculates again current balanced ratio after one minute, if still over balance rate setting
Scope, then continue to adjust, and this program is performed repeatedly, during particular up to system balancing rate in setting range, terminates to adjust.
Intelligent electronic control system embodiment：
The startup of piston pump motor is completed by soft initiator 23, and SIEMENS PLC controller 28, DC24V is equipped with electric cabinet
Dc source 24, disconnecting switch 22, contactor 24, breaker 25, miniature circuit breaker 27；PLC 28 to tank temperature and
Liquid level, bidirectional hydraulic distributor oil pressure, main frame limitation travel switch and sensor, carry out signals collecting, at data analysis
After the conversion of reason device and analytic operation, detected value and result are sent on the touch-screen 32 of electric cabinet panel, are available for artificial
Inquiry and operation.Also can be operated by operation button 33 on electric cabinet.PLC, using siemens PLC smart
Series as master controller, and with the Ethernet connecting communication of touch-screen 32.By the touch operation of touch-screen, can liquidate manually
Journey, jig frequency carry out on-line tuning；Also adjust automatically mode can be used：The pressure sensor of bidirectional hydraulic distributor and magnetostriction
The data of displacement transducer collection, by the S7200PLC Analog input mModules of cable transmission to data analysis processor, by
After the CPU of data analysis processor is processed, it is displayed on touch-screen 32, then by data analysis by the form of indicator card
The malfunction indicator card data prestored in processor are compared with the indicator card of real-time rendering, are judged with the presence or absence of failure
Hidden danger simultaneously analyzes fault type, is sent to display and touches screen display, for reminding workman to safeguard and noting, real-time rendering
Indicator card can draw down-hole dynamic liquid level height after being calculated analytically, can adjust automatically jig frequency according to dynamic liquid level height：Work as hydrodynamic
When face highly increases, increase jig frequency（Less than design maximum）；When dynamic liquid level height is reduced, jig frequency is reduced.Also pass through intelligence
The energy real-time monitoring electricity consumption situation of dynamometer instrument 31, and data are passed to by PLC 28 by the communication of data MODBUS, and touching
Screen 32 shows and records.
Intelligent electronic control system is provided with radio station's integrated transmission system, realizes that multiple stage is intellectual without walking beam by radio station
The network management of hydraulic pumping unit；The signal of radio set transceiver of radio station's integrated transmission system, using cdma network
DTU module and oil field centralized management system connecting communication, and by cdma network by real-time data transmissions such as oil well output, operations
To in the systems such as distant place field management, there is provided form such as stores, imports and exports and print at the function automatically.
Embodiment one, referring to the drawings 4, the bidirectional hydraulic distributor is docked with one heart using Double-hydraulic cylinder rod.
Embodiment two, referring to the drawings 5, the bidirectional hydraulic distributor is using the nonstandard distributor for making four chambers of double-piston
Mutually push away mode.
The utility model hydraulic system using the concentric docking of Double-hydraulic cylinder rod or it is nonstandard make double-piston four chambers point
The mode that orchestration is mutually pushed away is stored the potential energy that down stroke is produced to accumulator by hydraulic pressure transfer.
Claims (2)
1. a kind of intellectual hydraulic system without walking beam hydraulic pumping unit, for the intellectual without walking beam hydraulic pressure of single-action hydraulic cylinder
Oil pumper, it is characterised in that be made up of Hydraulic Station and Intelligent electronic control system；
Hydraulic Station is included：Fuel tank（19）, valve group, bidirectional hydraulic distributor（7）With accumulator and hydraulic motor, bidirectional hydraulic distribution
Device（7）Side is connected with the intellectual hydraulic cylinder without walking beam hydraulic pumping unit, and opposite side is connected with accumulator, and after valve group
Connection hydraulic motor and fuel tank（19）, potential energy is reclaimed；Intelligent electronic control system is included：Multiple sensors and electric cabinet are more
Individual sensor is separately positioned on intellectual without on walking beam hydraulic pumping unit and Hydraulic Station, the output end and electric cabinet of multiple sensors
Connection；
The hydraulic motor of the Hydraulic Station is by Variable plunger pump（4）And motor（8）Composition, and set cooling fan（14）, variable post
Plug pump and motor connection, cooling fan is arranged on Variable plunger pump and motor side；The Variable plunger pump（4）Overflow by two-way
Stream valve（21）With solenoid directional control valve four（20）Control, bidirectional relief valve（21）With solenoid directional control valve four（20）Realize Variable plunger pump
High-low pressure switching completes balance adjustment.
2. a kind of intellectual hydraulic system without walking beam hydraulic pumping unit according to claim 1, it is characterised in that：It is described
Multiple sensors of Intelligent electronic control system, including：For the sensor of stroke measurement, using stay-supported type displacement sensor, arrange
Beside hydraulic cylinder；For the sensor of polished rod load power measurement, using on-line checking formula pressure sensor, it is arranged on intellectual
Without on walking beam hydraulic pumping unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138430.0U CN206144537U (en) | 2016-10-20 | 2016-10-20 | Intelligent does not have walking beam hydraulic pumping unit's hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138430.0U CN206144537U (en) | 2016-10-20 | 2016-10-20 | Intelligent does not have walking beam hydraulic pumping unit's hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144537U true CN206144537U (en) | 2017-05-03 |
Family
ID=58622877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621138430.0U Active CN206144537U (en) | 2016-10-20 | 2016-10-20 | Intelligent does not have walking beam hydraulic pumping unit's hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206144537U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522889A (en) * | 2016-10-20 | 2017-03-22 | 唐山渤海冶金设备有限责任公司 | Intelligent non-beam hydraulic oil pumping unit hydraulic system and application method |
| CN109692929A (en) * | 2018-12-20 | 2019-04-30 | 南京理工大学 | The PLC control system of snap clasp automatic moulding machine |
-
2016
- 2016-10-20 CN CN201621138430.0U patent/CN206144537U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522889A (en) * | 2016-10-20 | 2017-03-22 | 唐山渤海冶金设备有限责任公司 | Intelligent non-beam hydraulic oil pumping unit hydraulic system and application method |
| CN109692929A (en) * | 2018-12-20 | 2019-04-30 | 南京理工大学 | The PLC control system of snap clasp automatic moulding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220628 Address after: 063000 No. 302, 3rd floor, No. 11, east side of Kaisan Road, high tech Zone, Tangshan City, Hebei Province Patentee after: TANGSHAN BOHAI METALLURGICAL INTELLIGENT EQUIPMENT Co.,Ltd. Address before: 063020 No. 11, Kaisan Road, high tech Industrial Park, Tangshan City, Hebei Province Patentee before: TANGSHAN BOHAI METALLURGY EQUIPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right |