CN204900187U - Fracturing unit truck and transmission conveying system thereof - Google Patents
Fracturing unit truck and transmission conveying system thereof Download PDFInfo
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- CN204900187U CN204900187U CN201520632385.3U CN201520632385U CN204900187U CN 204900187 U CN204900187 U CN 204900187U CN 201520632385 U CN201520632385 U CN 201520632385U CN 204900187 U CN204900187 U CN 204900187U
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Abstract
The utility model discloses a fracturing unit truck and transmission conveying system thereof, including engine, oil pump, gear pump, air -cooled motor and conveying mechanism, the engine is used for driving the oil pump, the oil pump is connected with the gear pump, the hydraulic oil that the gear pump flows acts on air -cooled motor for oil is mended to the oil feed pump, every conveying mechanism of group all includes a conveying mechanism and the 2nd conveying mechanism, and a conveying mechanism and the 2nd conveying mechanism all include and hydraulic cylinder and pressurized cylinder be provided with the connecting box between hydraulic cylinder and the pressurized cylinder, the movably plunger that is provided with in the pressurized cylinder, plunger and hydraulic cylinder's piston rod stretch out end fixed connection, the oil pump produce oil with air -cooled motor and the hydraulic cylinder oil return between, the gear pump produces oil with air -cooled motor oil feed between, all be connected through the oil circuit between hydraulic cylinder oil return and the oil pump oil absorption, the forced air cooling motor produces oil and is used for the hydraulic cylinder oil return for a conveying mechanism and the 2nd conveying mechanism to mend oil. Its simple structure, whole car quality are little, low cost and to mend oil effectual.
Description
Technical field
The utility model relates to fracturing unit truck technical field, particularly a kind of fracturing unit truck and drive transfer system thereof.
Background technique
Pressure break is the important technical that oil gas field increasing the storage is produced, and needs first to be pressed off by formation fracture by high-pressure liquid, then toward filling fracturing sand in crack, strengthens in-place permeability, improves oil and gas production.
The transmission scheme that in prior art, its pressure break pump truck of traditional fracturing unit truck all adopts " diesel engine-fluid torque converter-transmission shaft-fracturing pump ".This arrangement is the power scheme of prime mover based on motor, and the subject matter of existence is: 1. drive path can only be " diesel engine-fluid torque converter-transmission shaft-fracturing pump ", can not split; 2. this kind of transmission scheme determines to select the motor meeting peak output, when unit rises rapidly more than cost during 1500KW, and type selecting difficulty; 3. the Component selection narrow range such as supporting torque-converters, price is high, as critical elements (torque-converters, transfer case, fracturing pump etc.) all needs import, not only causes complete machine with high costs, and development is subject to the restriction of import parts cycle and the source of goods.For overcoming the problems referred to above, also there is a kind of up-to-date all-hydraulic fracturing unit truck at present, this vehicle hydraulic pressure transmission instead of mechanical drive mode, but it is many to have control valve group, and overall mass is large, and hydraulic pipe line arranges difficult problem.
In sum, how to provide that a kind of structure is simple, complete vehicle weight is comparatively light, discharge capacity is large and the fracturing unit truck that delivery pressure is higher and drive transfer system thereof, has become those skilled in the art to need the technical problem of solution badly.
Model utility content
In view of this, the utility model proposes a kind of fracturing unit truck and drive transfer system thereof, many to solve existing fracturing unit truck control valve group, overall mass is large, and hydraulic pipe line arranges difficult problem.
On the one hand, the utility model provides a kind of fracturing unit truck drive transfer system, comprise one or more motor, multiple oil pump, multiple gear pump, multiple air-cooled motor and at least one group of conveying equipment, wherein: when described motor is one, described motor is for driving multiple oil pump, when described motor is multiple, described motor is for driving at least one oil pump; Single described oil pump is connected with single described gear pump; The hydraulic oil that described gear pump flows out acts on air-cooled motor, for oil feed pump repairing; Often organize conveying equipment and include the first conveying equipment and second conveyor structure, described first conveying equipment and second conveyor structure include hydraulic jack and pressurized cylinder, be provided with connecting box between described hydraulic jack and pressurized cylinder, the external part of the piston rod of described hydraulic jack can move in connecting box; Be provided with plunger movably in described pressurized cylinder, described plunger is fixedly connected with the external part of described piston rod, and described plunger only moves in described connecting box and pressurized cylinder; Between and the hydraulic jack oil return fuel-displaced with described air-cooled motor of described oil pump, between the fuel-displaced and described air-cooled motor oil-feed of described gear pump, described hydraulic jack oil return is all connected by oil circuit with between described oil pump suction; Described air-cooled motor is fuel-displaced for giving the hydraulic jack oil return repairing of the first conveying equipment and second conveyor structure.
Further, when the pressurized cylinder often organizing the first conveying equipment in described conveying equipment is in discharge state, the pressurized cylinder of described second conveyor structure is in suction condition.
Further, the rod chamber often organizing the hydraulic jack of the first conveying equipment in described conveying equipment and the hydraulic jack of second conveyor structure communicates with each other.
Further, between the fuel-displaced and described air-cooled motor oil-feed of described gear pump, be provided with the first oil circuit, behind the fuel-displaced interflow of described gear pump, drive described air-cooled motor, for the oil suction line repairing of oil feed pump after described air-cooled motor is fuel-displaced through the first oil circuit.
Further, described oil pump and described air-cooled motor is fuel-displaced and be provided with the second oil circuit between hydraulic jack oil return, drives hydraulic jack through the second oil circuit behind the fuel-displaced interflow of described oil pump.
Further, be provided with the 3rd oil circuit between described hydraulic jack oil return and described oil pump suction, the inlet port of oil pump is got back in described hydraulic jack oil return behind the 3rd oil circuit interflow.
Further, described oil pump is enclosed oil pump; And/or described plunger is connected with piston rod by clip.
Further, the outlet of each pressurized cylinder all connects dispense fluid.
In sum, when adopting fracturing unit truck drive transfer system of the present utility model, the multiple oil pump of at least one engine-driving or at least one oil pump, single oil pump is connected with single gear pump, multiple fuel pump output pressure oil, be provided with connecting box between described hydraulic jack and pressurized cylinder, the external part of the piston rod of described hydraulic jack can move in connecting box; Plunger is provided with movably in described pressurized cylinder, described plunger is fixedly connected with the external part of described piston rod, described plunger only moves in described connecting box and pressurized cylinder, and then realizes of the fracturing fluid continus convergence by the pressurized cylinder in the first conveying equipment and second conveyor structure; Between and the hydraulic jack oil return fuel-displaced with described air-cooled motor of described oil pump, between the fuel-displaced and described air-cooled motor oil-feed of described gear pump, described hydraulic jack oil return is all connected by oil circuit with between described oil pump suction; And the hydraulic oil that gear pump flows out acts on air-cooled motor, for oil feed pump repairing; Air-cooled motor is fuel-displaced for giving the hydraulic jack oil return repairing of the first conveying equipment and second conveyor structure.The problem that control valve group volume in existing fracturing unit truck drive transfer system is large, quality large, adapter is difficult is solved by above-mentioned setting, the technique effect of air-cooled motor oil feed pump repairing can also be realized simultaneously, effectively can reduce manufacture cost and the production difficulty of fracturing unit truck, can effectively improve working performance, operating efficiency and maintainability simultaneously.
In technological scheme further, when oil pump is enclosed oil pump, inlet line latus rectum can be reduced, reduce hydraulic oil container volume, and there is the most advantage that high output pressure is higher, maximum pump discharge is bigger than normal.
On the other hand, the utility model also provides a kind of fracturing unit truck, comprises chassis, the car body on described chassis is provided with the fracturing unit truck drive transfer system on it described in any one.
Further, the car body on described chassis is provided with motor, speedup box, oil pump and gear pump successively along chassis setting direction, multiple motor is set in turn in the top of described car body along chassis setting direction, and described conveying equipment is arranged between motor and car body.
Fracturing unit truck of the present utility model has above-mentioned fracturing unit truck drive transfer system, thus effectively can reduce fabricating cost and the production difficulty of fracturing unit truck, can effectively improve working performance, operating efficiency and maintainability simultaneously.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the theory of constitution schematic diagram of a kind of fracturing unit truck drive transfer of the utility model system;
Fig. 2 is the structural representation of a kind of fracturing unit truck of the utility model.
Description of reference numerals
1-motor 2-speedup box 3-enclosed oil pump;
The air-cooled motor of 4-gear pump 5-hydraulic oil container 6-;
7-first oil circuit 8-second oil circuit 9-the 3rd oil circuit;
10-hydraulic jack 11-pressurized cylinder 12-dispense fluid
13-chassis 14-car body 15 connecting box
16 piston rod 17 clip 18 plungers
The hydraulic jack of 10.1-first conveying equipment
The hydraulic jack of 10.2-second conveyor structure
The pressurized cylinder of 11.1-first conveying equipment
The pressurized cylinder of 11.2-second conveyor structure
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figure 1, a kind of fracturing unit truck drive transfer system, comprises one or more motor 1, multiple oil pump, multiple gear pump 4, multiple air-cooled motors 6 and at least one group of conveying equipment.Wherein: when motor 1 is one, motor 1 is for driving multiple oil pump; When motor 1 is multiple, motor 1 is for driving at least one oil pump; Single oil pump is connected with single gear pump 4; Often organize conveying equipment and include the first conveying equipment and second conveyor structure, and the first conveying equipment and second conveyor structure include hydraulic jack 10 and pressurized cylinder 11, connecting box 15 is provided with between hydraulic jack 10 and pressurized cylinder 11, the external part of the piston rod 16 of hydraulic jack 10 can move in connecting box 15, and piston rod 16 can not extend in pressurized cylinder 11; Be provided with plunger 18 movably in pressurized cylinder 11, plunger 18 is fixedly connected with the external part of piston rod 16, and plunger 18 moves only in connecting box 15 and pressurized cylinder 11; Between oil pump and hydraulic jack 10 oil return fuel-displaced with air-cooled motor 6, between fuel-displaced and air-cooled motor 6 oil-feed of gear pump 4, hydraulic jack 10 oil return is all connected by oil circuit with between oil pump suction; Air-cooled motor 6 is for driving engine blower, and it is fuel-displaced directly enters the repairing of oil pump suction pipeline, and to ensure the oil suction pressure of oil pump, namely air-cooled motor 6 is fuel-displaced for giving hydraulic jack 10 oil return repairing.Particularly, when often in group conveying equipment, the pressurized cylinder 11.1 of the first conveying equipment is in discharge state, namely the pressurized cylinder 11.2 of second conveyor structure is in suction condition.It should be noted that, for realizing fracturing unit truck compact structure, transmission better compared with the effect that in steady and commutation process, energy loss is little, fuel pump output pressure is high, discharge flow rate is large, in the utility model, oil pump is preferably enclosed oil pump 3.
When adopting fracturing unit truck drive transfer system of the present utility model, at least one motor 1 drives multiple oil pump or at least one oil pump, multiple fuel pump output pressure oil, and by the oil suction pressure of the fuel-displaced control oil pump of air-cooled motor 6, of the fracturing fluid continus convergence is realized by pressurized cylinder 11, the different hydraulic jack 10 of cylinder diameter and the pressurized cylinder 11 of different cylinder diameter cooperatively interact many displacement requirements that can realize under different pressures, and coverage area is wider; Moreover the stroke of hydraulic jack 10 and pressurized cylinder 11 is comparatively large, the number of times that commutates during operation is less, effectively can improve the working life of conveying equipment associated components easily damaged partss such as () packing, valve body, valve seat, valve rubber like this.In addition, adopt at least one motor 1, multiple oil pump realizes transmission, the type selecting scope of transmission system associated components can be expanded, can effectively reduce enforcement difficulty, also be convenient to realize multiple matching way, and be convenient to the control realizing fracturing pump rotating speed and output power.In addition, when adopting multiple motor 1, under the prerequisite meeting peak output, the power that each motor 1 is born can effectively reduce, therefore, common low-powered engine 1 can be selected, greatly improve type selecting scope, correspondingly, the type selecting scope of the hydraulic element such as each oil pump, hydraulic jack 10, pressurized cylinder 11 also can effectively improve.In addition, after adopting this kind of drive, if after some motors 1 or oil pump damage, whole drive transfer system still can ensure that fracturing work carries out a period of time unceasingly, thus effectively improves safety redundancy, reduces the risk that loss occurs construction party.
Meanwhile, in concrete implementation process, the clutch end of motor 1 can directly connect in the power transmission shaft of enclosed oil pump 3, can also be equiped with speedup box 2, drive one or more enclosed oil pump 3 by speedup box 2 between motor 1 and enclosed oil pump 3.It is worth mentioning, the inlet port of each enclosed oil pump 3 is connected with hydraulic jack 10 oil return, and the oil outlet of each enclosed oil pump 3 is connected with hydraulic jack 10 oil-feed.In addition, the inlet port of gear pump 4 is connected with hydraulic oil container 5, and its oil outlet is connected with air-cooled motor 6.
As shown in Figure 1, the rod chamber often organizing the hydraulic jack 10.1 of the first conveying equipment and the hydraulic jack 10.2 of second conveyor structure in conveying equipment communicates with each other, the fuel-displaced oil suction pressure for control oil pump of air-cooled motor 6; And the outlet of each pressurized cylinder 11 all connects dispense fluid 12.Particularly, between fuel-displaced and air-cooled motor 6 oil-feed of gear pump 4, be provided with the first oil circuit 7, behind the fuel-displaced interflow of gear pump 4 through the first oil circuit 7 for driving air-cooled motor 6; Enclosed oil pump 3 and air-cooled motor 6 is fuel-displaced and be provided with the second oil circuit 8 between hydraulic jack 10 oil return, behind the fuel-displaced interflow of enclosed oil pump 3 through the second oil circuit 8 for driving hydraulic jack 10; Be provided with the 3rd oil circuit 9 between hydraulic jack 10 oil return and oil pump suction, the inlet port of enclosed oil pump 3 is got back in hydraulic jack 10 oil return after the 3rd oil circuit 9 collaborates, for giving enclosed oil pump 3 repairing.Namely drive hydraulic jack 10 through the second oil circuit 8 behind the fuel-displaced interflow of enclosed oil pump 3, hydraulic jack 10 drives pressurized cylinder 11 to extrude pressure break medium by dispense fluid 12; Hydraulic jack 10 oil return directly gets back to enclosed oil pump 3 inlet port after the 3rd oil circuit 9 collaborates, for giving enclosed oil pump 3 repairing; In addition, behind the fuel-displaced interflow of gear pump 4, drive air-cooled motor 6 through the first oil circuit 7, behind the air-cooled fuel-displaced interflow of motor 6, enter the 3rd oil circuit 9, as the repairing of enclosed oil pump 3.
It should be noted that, stablize for realizing conveying equipment, realize of the fracturing fluid conveying continuously, can make when the pressurized cylinder 11.1 of the first conveying equipment is in discharge state by enclosed oil pump 3, pressurized cylinder 11.2 in second conveyor structure is in suction condition, vice versa, namely moves in circles according to above-mentioned steps.Be embodied in: when the hydraulic jack 10.1 of the first conveying equipment moves right, its rodless cavity oil-feed, its rod chamber is fuel-displaced, and its fuel-displaced rod chamber flowing to the hydraulic jack 10.2 of second conveyor structure, now the rodless cavity of the hydraulic jack 10.2 of second conveyor structure is fuel-displaced, directly gets back to the inlet port of enclosed oil pump 3 behind fuel-displaced interflow by the 3rd oil circuit 9 after being collaborated; When the hydraulic jack 10.1 of the first conveying equipment moves right to terminal, enclosed oil pump 3 commutates, now fuel-displaced oil circuit becomes oil return circuit, oil return circuit becomes fuel-displaced oil circuit, hydraulic jack 10.1 moving direction of the first conveying equipment is reverse simultaneously, and it is a circulation that the hydraulic jack 10.1 of the first conveying equipment oppositely moves to another terminal.By above-mentioned setting, achieve the effect that fracturing fluid sucks and exports continuously, meet the needs of fracturing work; And utilize the oil return of air-cooled motor 6 to carry out repairing to enclosed oil pump 3.
In addition, it is worth mentioning, in the utility model, plunger 18 is connected preferably by clip 17 with piston rod 16.Connection between certain plunger 18 and piston rod 16 is not limited in and is realized by clip 17, other links that can realize above-mentioned technique effect also in protection domain of the present utility model, in this citing that differs.
So, in fracturing unit truck drive transfer system of the present utility model, at least one motor 1 drives multiple oil pump or at least one oil pump, single oil pump is connected with single gear pump 4, multiple fuel pump output pressure oil, and by the oil suction pressure of the fuel-displaced control oil pump of air-cooled motor 6, realize of the fracturing fluid continus convergence by the pressurized cylinder 11 in the first conveying equipment and second conveyor structure; Between and hydraulic jack 10 oil return fuel-displaced with air-cooled motor 6 of described oil pump, between fuel-displaced and air-cooled motor 6 oil-feed of gear pump 4, hydraulic jack 10 oil return is all connected by oil circuit with between described oil pump suction; And the hydraulic oil that gear pump 4 flows out acts on air-cooled motor 6, for oil feed pump 3 repairing, and being provided with connecting box between the hydraulic jack of the first conveying equipment and second conveyor structure and pressurized cylinder, the external part of the piston rod of described hydraulic jack can move in connecting box; Be provided with plunger movably in described pressurized cylinder, described plunger is fixedly connected with the external part of described piston rod, and described plunger only moves in described connecting box and pressurized cylinder.The problem that control valve group volume in existing fracturing unit truck drive transfer system is large, quality large, adapter is difficult is solved by above-mentioned setting, the technique effect of air-cooled motor 6 oil feed pump repairing can also be realized simultaneously, effectively reduce manufacture cost and the production difficulty of fracturing unit truck, can effectively improve working performance, operating efficiency and maintainability simultaneously.
As shown in Figure 2, the invention also discloses a kind of fracturing unit truck, comprise chassis 13, the car body 14 on chassis 13 is provided with fracturing unit truck drive transfer system described on it.Particularly, the car body 14 on this chassis 13 is provided with motor 1, speedup box 2, oil pump and gear pump 4 from left to right successively, and multiple motor 1 is set in turn in the top of car body 14 from left to right, conveying equipment be then arranged at motor 1 and car body 14 between, dispense fluid 12 is installed on the afterbody of car body 14, be convenient to the connection of pressurized cylinder 11 and dispense fluid 12, this kind of arrangement is convenient to installation and maintenance.In addition, from the technique effect of aforementioned fracturing unit truck drive transfer system, this fracturing unit truck effectively can reduce manufacture cost and the production difficulty of fracturing unit truck, can effectively improve working performance, operating efficiency and maintainability simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a fracturing unit truck drive transfer system, is characterized in that, comprises one or more motor (1), multiple oil pump, multiple gear pump (4), multiple air-cooled motor (6) and at least one group of conveying equipment, wherein:
When described motor (1) is one, described motor (1) is for driving multiple oil pump, and described motor (1) is for time multiple, and described motor (1) is for driving at least one oil pump;
Single described oil pump is connected with single described gear pump (4);
The hydraulic oil that described gear pump (4) flows out acts on air-cooled motor (6), for oil feed pump repairing;
Often organize conveying equipment and include the first conveying equipment and second conveyor structure, described first conveying equipment and second conveyor structure include hydraulic jack (10) and pressurized cylinder (11), be provided with connecting box (15) between described hydraulic jack (10) and pressurized cylinder (11), the external part of the piston rod (16) of described hydraulic jack (10) can move in connecting box (15); Plunger (18) is provided with movably in described pressurized cylinder (11), described plunger (18) is fixedly connected with the external part of described piston rod (16), and described plunger (18) only moves in described connecting box (15) and pressurized cylinder (11);
Between and hydraulic jack (10) oil return fuel-displaced with described air-cooled motor (6) of described oil pump, between the oil-feed of described gear pump (4) fuel-displaced and described air-cooled motor (6), described hydraulic jack (10) oil return is all connected by oil circuit with between described oil pump suction;
Described air-cooled motor (6) is fuel-displaced for giving hydraulic jack (10) the oil return repairing of the first conveying equipment and second conveyor structure.
2. fracturing unit truck drive transfer system according to claim 1, it is characterized in that, when the pressurized cylinder (11.1) often organizing the first conveying equipment in described conveying equipment is in discharge state, the pressurized cylinder (11.2) of described second conveyor structure is in suction condition.
3. fracturing unit truck drive transfer system according to claim 2, it is characterized in that, the rod chamber often organizing the hydraulic jack (10.1) of the first conveying equipment in described conveying equipment and the hydraulic jack (10.2) of second conveyor structure communicates with each other.
4. the fracturing unit truck drive transfer system according to any one of claim 1-3, it is characterized in that, the first oil circuit (7) is provided with between the oil-feed of described gear pump (4) fuel-displaced and described air-cooled motor (6), described air-cooled motor (6) is driven through the first oil circuit (7), for the oil suction line repairing of oil feed pump (3) after described air-cooled motor (6) is fuel-displaced behind described gear pump (4) fuel-displaced interflow.
5. fracturing unit truck drive transfer system according to claim 4, it is characterized in that, described oil pump and described air-cooled motor (6) is fuel-displaced and be provided with the second oil circuit (8) between hydraulic jack (10) oil return, drives hydraulic jack (10) through the second oil circuit (8) behind the fuel-displaced interflow of described oil pump.
6. fracturing unit truck drive transfer system according to claim 5, it is characterized in that, be provided with the 3rd oil circuit (9) between (10) oil return of described hydraulic jack and described oil pump suction, the inlet port of oil pump is got back in described hydraulic jack (10) oil return behind the 3rd oil circuit (9) interflow.
7. fracturing unit truck drive transfer system according to claim 1, is characterized in that, described oil pump is enclosed oil pump (3); And/or described plunger (18) is connected with piston rod (16) by clip (17).
8. fracturing unit truck drive transfer system according to claim 1, is characterized in that, the outlet of each pressurized cylinder (11) all connects dispense fluid (12).
9. a fracturing unit truck, comprises chassis (13), it is characterized in that, the car body (14) of described chassis (13) is provided with the fracturing unit truck drive transfer system described in any one of claim 1-8.
10. fracturing unit truck according to claim 9, it is characterized in that, the car body (14) on described chassis (13) is provided with motor (1), speedup box (2), oil pump and gear pump (4) successively along chassis (13) setting direction, multiple motor (1) is set in turn in the top of described car body (14) along chassis (13) setting direction, described conveying equipment be arranged at motor (1) and car body (14) between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632385.3U CN204900187U (en) | 2015-08-20 | 2015-08-20 | Fracturing unit truck and transmission conveying system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632385.3U CN204900187U (en) | 2015-08-20 | 2015-08-20 | Fracturing unit truck and transmission conveying system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900187U true CN204900187U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520632385.3U Withdrawn - After Issue CN204900187U (en) | 2015-08-20 | 2015-08-20 | Fracturing unit truck and transmission conveying system thereof |
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| Country | Link |
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| CN (1) | CN204900187U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041603A (en) * | 2015-08-20 | 2015-11-11 | 三一重型能源装备有限公司 | Fracturing truck and transmission conveying system thereof |
-
2015
- 2015-08-20 CN CN201520632385.3U patent/CN204900187U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041603A (en) * | 2015-08-20 | 2015-11-11 | 三一重型能源装备有限公司 | Fracturing truck and transmission conveying system thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170105 Address after: 102206 South Beijing city of Changping District science and Technology Park 31 manufacturing center of Beijing Liu Lu Li Patentee after: 31 petroleum Intelligent Equipment Co., Ltd. Address before: 102206 Changping District City, North Road, Beijing, the 31 Industrial Park Patentee before: SANY HEAVY ENERGY EQUIPMENT CO., LTD. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20151223 Effective date of abandoning: 20170919 |
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| AV01 | Patent right actively abandoned |