CN108360985B - Control loop of hydraulic shackle loading mechanism - Google Patents
Control loop of hydraulic shackle loading mechanism Download PDFInfo
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- CN108360985B CN108360985B CN201810256497.1A CN201810256497A CN108360985B CN 108360985 B CN108360985 B CN 108360985B CN 201810256497 A CN201810256497 A CN 201810256497A CN 108360985 B CN108360985 B CN 108360985B
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- 239000012530 fluid Substances 0.000 claims description 34
- 239000003921 oil Substances 0.000 description 199
- 210000000078 claw Anatomy 0.000 description 16
- 239000010720 hydraulic oil Substances 0.000 description 16
- 238000005553 drilling Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
- E21B19/163—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe piston-cylinder actuated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides a hydraulic screwing-off mechanism control loop which comprises a first manual pressure reducing valve, a second manual pressure reducing valve, a third manual pressure reducing valve, a first three-position hydraulic reversing valve, a second three-position hydraulic reversing valve, a third three-position hydraulic reversing valve, a first group of screwing motors and a second group of screwing motors, wherein oil ports P of the first manual pressure reducing valve, the second manual pressure reducing valve and the third manual pressure reducing valve are connected with an oil supply port, oil ports Y of the first manual pressure reducing valve and the oil supply port are connected with an oil return port, an oil port A of the first manual pressure reducing valve and an oil port P of the first three-position hydraulic reversing valve, an oil port A of the second manual pressure reducing valve and an oil port P of the second three-position hydraulic reversing valve, an oil port A of the third manual pressure reducing valve and an oil port P of the third three-position hydraulic reversing valve are respectively communicated, and an oil port A of the first group of screwing motors are respectively communicated, and an oil port A of the second three-position hydraulic reversing valve and an oil port B of the first group of screwing motors are respectively.
Description
Technical Field
The invention belongs to the field of drilling equipment in the petroleum industry, and particularly relates to a hydraulic shackle mechanism control loop of a continuous circulation drilling system.
Background
The continuous circulation drilling system can keep continuous circulation of drilling fluid when a single pipe or an upright post is connected, so that stable equivalent circulation density and uninterrupted drill cuttings discharge are realized during the whole drilling period, bottom hole pressure fluctuation caused by pump stopping and pump starting circulation is avoided, well hole conditions and drilling safety are comprehensively improved, drilling accidents are obviously reduced, and drilling efficiency is improved.
In chinese patent publication No. CN205225117U, a hydraulic trip mechanism of a continuous circulation drilling system is described, which mainly comprises a trip motor, a trip cylinder, a positioning cylinder, a tooth claw, a guide rail, a trip gear, a central gear, and the central gear is fixedly connected with a clamping mechanism. The working principle of the above-mentioned shackle mechanism is as follows: when the drill rod is buckled, after the clamping mechanism clamps the drill rod, the rotary buckle motor drives the central gear and the clamping mechanism to rotate through the rotary buckle gear, so that the drill rod is driven to rotate forward to enable the joint to be screwed, then the positioning oil cylinder stretches out to enable the tooth claw on the guide rail to be meshed with the central gear, after the meshing is determined, the buckling oil cylinder is started, the central gear and the clamping mechanism are driven to transmit forward through the tooth claw to enable the joint to be buckled, after the buckling torque is reached, the buckling oil cylinder is decompressed, the positioning oil cylinder is retracted to enable the tooth claw on the guide rail to be separated from the central gear, and thus the buckling process is completed; and in contrast to the process of shackle, after the positioning oil cylinder stretches out to enable the tooth claw to be meshed with the central gear, the upper shackle oil cylinder drives the central gear and the clamping mechanism to reversely collapse through the tooth claw, after the joint collapses, the upper shackle oil cylinder releases pressure, the positioning oil cylinder retracts to enable the tooth claw to be separated from the central gear, then the rotary buckle motor is started, the central gear and the clamping mechanism are driven to reversely rotate through the rotary buckle gear, and the joint is unscrewed, so that the shackle operation is completed.
Because the tooth position between the tooth claw and the central gear is always not centered, the tooth claw is required to be meshed with the central gear through complex actions, the operation is time-consuming and labor-consuming, occasionally, the situation that the tooth claw cannot be meshed through multiple actions can also occur, in addition, when the tooth claw is separated from the central gear, the phenomenon that the mechanism cannot be completely separated due to the fact that the relative positions of the tooth claw and the guide rail are improper can also occur, at the moment, the problem that the safety and the reliability of field operation are affected is solved through manual intervention is solved.
In view of this, the present inventors have developed a hydraulic trip mechanism control circuit based on production design experience in the art and related fields, in an effort to solve the problems of the prior art.
Disclosure of Invention
The invention aims to provide a hydraulic upper shackle mechanism control loop, which realizes all operations of turnbuckle, fastening and tipping by changing the control mode of a hydraulic motor, simplifies the operation flow and improves the operation efficiency and reliability.
The invention provides a hydraulic screwing-off mechanism control loop, which comprises a first manual reversing valve, a second manual reversing valve, a first manual pressure reducing valve, a second manual pressure reducing valve, a third manual pressure reducing valve, a first manual throttle valve, a second manual throttle valve, a third manual throttle valve, a first three-position hydraulic reversing valve, a second three-position hydraulic reversing valve, a third three-position hydraulic reversing valve, a first two-position hydraulic reversing valve, a second two-position hydraulic reversing valve, a third two-position hydraulic reversing valve, a fourth hydraulic reversing valve, a first group of screwing motors and a second group of screwing motors, wherein an oil port P of the first manual pressure reducing valve, an oil port P of the second manual pressure reducing valve and an oil port P of the third manual pressure reducing valve are connected with an oil return port, an oil port A of the first manual throttle valve is connected with an oil port P of the first manual pressure reducing valve, an oil port B of the third hydraulic reversing valve is connected with an oil port P of the first manual reversing valve, an oil port B of the third manual throttle valve is connected with an oil port B of the third manual reversing valve, an oil port B of the hydraulic reversing valve is connected with an oil port B of the third manual throttle valve, and an oil port B of the hydraulic reversing valve is connected with an oil port B of the third manual throttle valve;
the hydraulic ports A of the first two-position hydraulic reversing valve are connected with the hydraulic ports A of the first three-position hydraulic reversing valve and the hydraulic ports A of the third three-position hydraulic reversing valve, the hydraulic ports C of the first two-position hydraulic reversing valve are connected with the hydraulic ports A of the first group of rotary buckle motors, the hydraulic ports A of the second two-position hydraulic reversing valve are connected with the hydraulic ports A of the second three-position hydraulic reversing valve and the hydraulic ports B of the third three-position hydraulic reversing valve, the hydraulic ports B of the second two-position hydraulic reversing valve are communicated with the hydraulic ports B of the first two-position hydraulic reversing valve, the hydraulic ports C of the third two-position hydraulic reversing valve are connected with the hydraulic ports B of the first group of rotary buckle motors, the hydraulic ports A of the third two-position hydraulic reversing valve are connected with the hydraulic ports A of the second group of rotary buckle motors, the hydraulic ports B of the third two-position hydraulic reversing valve are communicated with the hydraulic ports B of the third two-position hydraulic reversing valve, and the hydraulic ports B of the third two-position hydraulic reversing valve are communicated with the hydraulic ports B of the second group of rotary buckle motors;
and the oil ports B of the first three-position hydraulic reversing valve and the second three-position hydraulic reversing valve are plugged.
The hydraulic shackle mechanism control circuit as described above, further comprising:
the oil port A of the first shuttle valve is connected with the oil port A of the first manual reversing valve, the oil port B of the first shuttle valve is connected with the oil port B of the first manual reversing valve, the oil port C of the hydraulic control valve is connected with the hydraulic control port a of the first two-position hydraulic reversing valve and the hydraulic control port a of the second two-position hydraulic reversing valve;
the oil port A of the second shuttle valve is connected with the oil port C of the first shuttle valve, and the oil port C of the second shuttle valve is connected with the hydraulic control port a of the third two-position hydraulic reversing valve and the hydraulic control port a of the fourth two-position hydraulic reversing valve;
and the oil port A of the third shuttle valve is connected with the oil port A of the second manual reversing valve, the oil port B of the third shuttle valve is connected with the oil port B of the second manual reversing valve, and the oil port C of the third shuttle valve is connected with the oil port B of the second shuttle valve.
The hydraulic shackle mechanism control loop as described above, wherein the oil port P of the first manual directional valve, the oil port P of the second manual directional valve, and the oil port P of the third manual directional valve are connected to an oil supply port, and the oil port T of the first manual directional valve, the oil port T of the second manual directional valve, the oil port Y of the first manual directional valve, the oil port Y of the second manual directional valve, the oil port Y of the third manual directional valve, the oil port T of the first three-position hydraulic directional valve, the oil port T of the second three-position hydraulic directional valve, and the oil port T of the third three-position hydraulic directional valve are connected to an oil return port.
The hydraulic shackle mechanism control loop is characterized in that the first manual reversing valve and the second manual reversing valve are replaced by electromagnetic control valves, and the first manual pressure reducing valve, the second manual pressure reducing valve, the third manual pressure reducing valve, the first manual throttle valve, the second manual throttle valve and the third manual throttle valve are replaced by electric proportional control valves.
The hydraulic shackle mechanism control circuit as described above, wherein the first manual throttle valve, the second manual throttle valve, and the third manual throttle valve are replaced with speed valves.
The control loop of the hydraulic shackle mechanism can realize all operations of the turnbuckle, the fastening buckle and the collapse buckle by flexibly changing the control mode of the hydraulic motor, and parts such as a shackle lifting cylinder, a positioning cylinder, a tooth claw and the like in the prior art are omitted, so that the problem that the tooth claw is difficult to engage with and disengage from a central gear is avoided, the shackle lifting operation is simpler and more convenient, and the operation efficiency and the reliability are improved.
Drawings
The following drawings are only for purposes of illustration and explanation of the present invention and are not intended to limit the scope of the invention. Wherein:
fig. 1 is a schematic diagram of a connection structure of a control loop of a hydraulic shackle mechanism according to the present invention.
FIG. 2 is a schematic view of the present invention showing the screwing, fastening, breaking and unscrewing of the motor driving joint during operation.
Reference numerals for main elements:
1. a first manual reversing valve; 2. a second manual reversing valve; 3. a first manual pressure reducing valve; 4. a second manual pressure reducing valve; 5. a third manual pressure reducing valve; 6. a first manual throttle valve; 7. a second manual throttle valve; 8. a third manual throttle valve; 9. a first shuttle valve; 10. a second shuttle valve; 11. a third shuttle valve; 12. a first pressure gauge; 13. a second pressure gauge; 14. a third pressure gauge; 15. a first three-position hydraulic reversing valve; 16. a second three-position hydraulic reversing valve; 17. a third three-position hydraulic reversing valve; 18. a first two-position hydraulic reversing valve; 19. a second two-position hydraulic reversing valve; 20. a third two-position hydraulic reversing valve; 21. a fourth two-position hydraulic reversing valve; 22. a first set of turnbuckle motors; 23. a second set of turnbuckle motors; 24. an oil supply port; 25. an oil return port; 26. a male connector; 27. a female joint; 28. a clamping mechanism; 29. a gear transmission mechanism; 30. a spin button motor; 31. an oil cylinder; 32. a housing floor.
Detailed Description
The invention provides a hydraulic shackle mechanism control loop, which comprises a first manual reversing valve, a second manual reversing valve, a first manual pressure reducing valve, a second manual pressure reducing valve, a third manual pressure reducing valve, a first manual throttle valve, a second manual throttle valve, a third manual throttle valve, a first three-position hydraulic reversing valve, a second three-position hydraulic reversing valve, a third three-position hydraulic reversing valve, a first two-position hydraulic reversing valve, a second two-position hydraulic reversing valve, a third two-position hydraulic reversing valve, a fourth two-position hydraulic reversing valve, a first group of rotary buckle motors and a second group of rotary buckle motors, wherein an oil port P of the first manual pressure reducing valve, an oil port P of the second manual pressure reducing valve and an oil port Y of the third manual pressure reducing valve are connected with an oil return port, an oil port A of the first manual throttle valve is connected with an oil port P of the first three-position hydraulic reversing valve, an oil port B of the first manual throttle valve is connected with an oil port P of the first manual reversing valve, an oil port B of the first manual throttle valve is connected with an oil port P of the third manual throttle valve, and an oil port B of the hydraulic throttle valve is connected with an oil port P of the third manual throttle valve;
the hydraulic ports A of the first two-position hydraulic reversing valve are connected with the hydraulic ports A of the first three-position hydraulic reversing valve and the hydraulic ports A of the third three-position hydraulic reversing valve, the hydraulic ports C of the first two-position hydraulic reversing valve are connected with the hydraulic ports A of the first group of rotary buckle motors, the hydraulic ports A of the second two-position hydraulic reversing valve are connected with the hydraulic ports A of the second three-position hydraulic reversing valve and the hydraulic ports B of the third three-position hydraulic reversing valve, the hydraulic ports B of the second two-position hydraulic reversing valve are communicated with the hydraulic ports B of the first two-position hydraulic reversing valve, the hydraulic ports C of the third two-position hydraulic reversing valve are connected with the hydraulic ports B of the first group of rotary buckle motors, the hydraulic ports A of the third two-position hydraulic reversing valve are connected with the hydraulic ports A of the second group of rotary buckle motors, the hydraulic ports B of the third two-position hydraulic reversing valve are communicated with the hydraulic ports B of the third two-position hydraulic reversing valve, and the hydraulic ports B of the third two-position hydraulic reversing valve are communicated with the hydraulic ports B of the second group of rotary buckle motors;
and the oil ports B of the first three-position hydraulic reversing valve and the second three-position hydraulic reversing valve are plugged.
The control loop of the hydraulic loading and unloading mechanism realizes all operations of turnbuckle, fastening and collapsing by changing the control mode of the hydraulic motor, simplifies the operation flow and improves the operation efficiency and the reliability.
In order to more clearly understand the technical features, objects and effects of the present invention, the following detailed description will refer to the specific implementation, structure, features and effects of the control circuit for the hydraulic shackle mechanism according to the present invention, with reference to the accompanying drawings and preferred embodiments. In addition, while the foregoing description of the embodiments will be presented for purposes of illustration and description, it should be appreciated that a number of embodiments and implementations of the invention may be utilized in a more detailed manner, and are not intended to be limiting. It should be noted that, the following "connection" generally refers to connection through a pipeline, and the oil ports a, B, C, P, Y, and T are common identifiers in the hydraulic transmission technical field, that is, the oil ports A, B and C are referred to as working oil ports, the oil port P is referred to as a pressure oil port, the oil port T is referred to as an oil return port, the oil port Y is referred to as an oil drain port, and the oil ports a and B are referred to as control oil ports, which will not be described in detail later.
Fig. 1 is a schematic diagram of a connection structure of a control loop of a hydraulic shackle mechanism according to the present invention.
As shown in fig. 1, the hydraulic tripping mechanism control loop provided by the invention comprises a first manual reversing valve 1, a second manual reversing valve 2, a first manual reducing valve 3, a second manual reducing valve 4, a third manual reducing valve 5, a first manual throttling valve 6, a second manual throttling valve 7, a third manual throttling valve 8, a first three-position hydraulic reversing valve 15, a second three-position hydraulic reversing valve 16, a third three-position hydraulic reversing valve 17, a first two-position hydraulic reversing valve 18, a second two-position hydraulic reversing valve 19, a third two-position hydraulic reversing valve 20, a fourth two-position hydraulic reversing valve 21, a first group of screwing motors 22 and a second group of screwing motors 23, wherein an oil port a of the first manual reversing valve 1 is connected with a hydraulic control port B of the first three-position hydraulic reversing valve 15 and a hydraulic control port a of the second three-position hydraulic reversing valve 16, an oil port B of the first three-position hydraulic reversing valve 15 is connected with a hydraulic control port a of the first three-position hydraulic reversing valve 15 and a hydraulic control port B of the second three-position hydraulic reversing valve 16, and an oil port B of the second three-position hydraulic reversing valve 17 is connected with a hydraulic reversing port B of the third hydraulic reversing valve 17;
the hydraulic fluid port A of the first manual throttle valve 6 is connected with the hydraulic fluid port A of the first manual pressure reducing valve 3, the hydraulic fluid port B of the first manual throttle valve 6 is connected with the hydraulic fluid port P of the first three-position hydraulic reversing valve 15, the hydraulic fluid port A of the second manual throttle valve 7 is connected with the hydraulic fluid port A of the second manual pressure reducing valve 4, the hydraulic fluid port B of the second manual throttle valve is connected with the hydraulic fluid port P of the second three-position hydraulic reversing valve 16, the hydraulic fluid port A of the third manual throttle valve 8 is connected with the hydraulic fluid port A of the third manual pressure reducing valve 5, the hydraulic fluid port B of the third manual throttle valve 8 is connected with the hydraulic fluid port P of the third three-position hydraulic reversing valve 17, and the hydraulic fluid port B of the first manual throttle valve 6, the hydraulic fluid port B of the second manual throttle valve 7 and the hydraulic fluid port B of the third manual throttle valve 8 are correspondingly connected with the first pressure gauge 12, the second pressure gauge 13 and the third pressure gauge 14.
The oil port a of the first two-position hydraulic reversing valve 18 is connected with the oil port a of the first three-position hydraulic reversing valve 15 and the oil port a of the third three-position hydraulic reversing valve 17, the oil port C thereof is connected with the oil port a of the first group of rotary-buckling motors 22, the oil port a of the second two-position hydraulic reversing valve 19 is connected with the oil port a of the second three-position hydraulic reversing valve 16 and the oil port B of the third three-position hydraulic reversing valve 17, the oil port B thereof is communicated with the oil port B of the first two-position hydraulic reversing valve 18, the oil port C thereof is connected with the oil port B of the first group of rotary-buckling motors 22, the oil port a of the third two-position hydraulic reversing valve 20 is connected with the oil port a of the first three-position hydraulic reversing valve 15 and the oil port a of the third three-position hydraulic reversing valve 17, the oil port C thereof is connected with the oil port a of the second group of rotary-buckling motors 23, the oil port a of the fourth two-position hydraulic reversing valve 21 is connected with the oil port a of the second three-position hydraulic reversing valve 16, the third hydraulic reversing valve 17 is connected with the oil port B of the third hydraulic reversing valve 20, and the oil port B of the third hydraulic reversing valve 23 is communicated with the oil port B of the third hydraulic reversing valve;
wherein, the oil ports B of the first three-position hydraulic reversing valve 15 and the second three-position hydraulic reversing valve 16 are blocked.
Referring to fig. 1, the hydraulic shackle mechanism control circuit is further provided with:
the first shuttle valve 9 has an oil port a connected with the oil port a of the first manual directional valve 1, an oil port B connected with the oil port B of the first manual directional valve 1, and an oil port C connected with the hydraulic control port a of the first two-position hydraulic directional valve 18 and the hydraulic control port a of the second two-position hydraulic directional valve 19;
the second shuttle valve 10 has an oil port a connected with the oil port C of the first shuttle valve 9, and an oil port C connected with the hydraulic control port a of the third two-position hydraulic directional valve 20 and the hydraulic control port a of the fourth two-position hydraulic directional valve 21;
and an oil port A of the third shuttle valve 11 is connected with an oil port A of the second manual reversing valve 2, an oil port B of the third shuttle valve is connected with an oil port B of the second manual reversing valve 2, and an oil port C of the third shuttle valve is connected with an oil port B of the second shuttle valve 10.
Further, the oil port P of the first manual directional valve 1, the oil port P of the second manual directional valve 2, the oil port P of the first manual directional valve 3, the oil port P of the second manual directional valve 4, and the oil port P of the third manual directional valve 5 are connected to the oil supply port 24, and the oil port T of the first manual directional valve 1, the oil port T of the second manual directional valve 2, the oil port Y of the first manual directional valve 3, the oil port Y of the second manual directional valve 4, the oil port Y of the third manual directional valve 5, the oil port T of the first three-position hydraulic directional valve 15, the oil port T of the second three-position hydraulic directional valve 16, and the oil port T of the third three-position hydraulic directional valve 17 are connected to the oil return port 25.
In specific use, the model numbers of the first group of turnbuckle motors and the second group of turnbuckle motors are preferably M1057B01A, wherein 4 groups A and 2 groups B are preferably arranged in parallel with each other; the manual reversing valve is 4WMM6J5X/F; the model number of the three-position hydraulic reversing valve is 4WH16J7X/; the model of the two-position hydraulic reversing valve is N5B300; the model number of the manual pressure reducing valve is DR20-5-5X/315YM; the model of the manual throttle valve is DVP-20-01.X; the shuttle valve model is RS417; the pressure gauge is of the type
In practical applications, the first manual directional valve 1 and the second manual directional valve 2 may be replaced by electromagnetic control valves, and the first manual pressure reducing valve 3, the second manual pressure reducing valve 4, the third manual pressure reducing valve 5, the first manual throttle valve 6, the second manual throttle valve 7, and the third manual throttle valve 8 may be replaced by electric proportional control valves. Further, the first manual throttle valve 6, the second manual throttle valve 7 and the third manual throttle valve 8 are replaced with speed valves. In addition, the first pressure gauge 12, the second pressure gauge 13, and the third pressure gauge 14 are replaced with pressure sensors.
Referring to fig. 1 and 2, the hydraulic screwing-on/off mechanism control circuit provided by the invention drives the connectors to screw on, fasten, collapse and unscrew during operation, wherein, as shown in fig. 2, the clamping mechanism 28 is fixed with the gear transmission mechanism 29, the gear transmission mechanism 29 and the screwing-off motor 30 are arranged on the bottom plate 32 of the shell, the bottom plate 32 of the shell is fixed with the piston rod of the oil cylinder 31, after the clamping mechanism 28 clamps the male connector 26, the screwing-off motor 30 can drive the male connector 26 to rotate through the gear transmission mechanism 29, and meanwhile, the oil cylinder 31 can drive the male connector 26 to move up and down through the bottom plate 32 of the shell and the like, so that the male connector 26 is screwed on, fastened, collapsed or unscrewed from the female connector 27. It should be noted that, in the above connection structure, the connection structure is substantially the same as the prior art, and will not be described herein, wherein the first set of turnbuckle motors 22 and the second set of turnbuckle motors 23 are schematically shown by the turnbuckle motors 30 in fig. 2 for simplifying the drawings to facilitate understanding. Specifically, the working principle of the invention is as follows:
under the non-working state, the valve cores of the first manual reversing valve 1 and the second manual reversing valve 2 are arranged in the middle position, the oil ports A and B of the valve cores are communicated with the oil port T, the oil port P is closed, and as no hydraulic oil is led to the hydraulic control ports of the three-position hydraulic reversing valves, the valve cores of the first three-position hydraulic reversing valve 15, the second three-position hydraulic reversing valve 16 and the third three-position hydraulic reversing valve 17 are all arranged in the middle position, the oil ports P, T, A and B of the valve cores are not communicated with each other, the 4 two-position hydraulic reversing valves 18, 19, 20 and 21 are all arranged in the right position, the oil port B and the oil port C of the valve cores are communicated, the oil port A is closed, and at the moment, the first group of turnbuckle motors 22 and the second group of turnbuckle motors 23 are in a floating state due to the communication of the oil port A and the oil port B.
Adjusting the opening of the third manual throttle valve 8 to a certain opening degree, observing the display of the third pressure gauge 14, adjusting the third manual pressure reducing valve 5, and adjusting the pressure to 10MPa; operating the second manual reversing valve 2 to enable an oil port P to be communicated with an oil port A, enabling an oil port T to be communicated with an oil port B, enabling hydraulic oil to be communicated with an oil port B of the third three-position hydraulic reversing valve 17, enabling the oil port P of the third three-position hydraulic reversing valve 17 to be communicated with an oil port A, enabling the oil port T to be communicated with the oil port B, simultaneously enabling hydraulic oil to be communicated with a hydraulic control port a of the third two-position hydraulic reversing valve 20 and a hydraulic control port a of the fourth two-position hydraulic reversing valve 21 through the third shuttle valve 11 and the second shuttle valve 10, enabling the hydraulic oil to be communicated with the hydraulic control port a of the third two-position hydraulic reversing valve 20 and the hydraulic control port A of the fourth two-position hydraulic reversing valve 21 to be communicated with the oil port C, enabling the oil port B of the second group of the rotary fastening motor 23 to be communicated with an oil return port 25, enabling the hydraulic oil to drive the second group of the rotary fastening motor 23 to rotate positively, enabling the oil cylinder 31 to drive the male joint 26 to move downwards, enabling the male joint 26 to be in rotary joint 27 to be in rotary joint with the female joint 27, enabling the hydraulic oil to be in rotary joint 26 to be in rotary joint with the same direction as the first manual reversing valve 8 and then to be in rotary joint 2 through the second manual reversing valve 8, and the rotary joint 2 is not in the same with the rotary operation process;
the opening of the first manual throttle valve 6 is adjusted to a certain opening degree, the display of the first pressure gauge 12 is observed, the first manual pressure reducing valve 3 is adjusted, and the pressure is adjusted to 15MPa; operating the first manual reversing valve 1 to enable an oil port P to be communicated with an oil port A, enabling an oil port T to be communicated with an oil port B, enabling hydraulic oil to be communicated with a hydraulic control port B of a first three-position hydraulic reversing valve 15 and a hydraulic control port a of a second three-position hydraulic reversing valve 16, enabling the oil port P of the first three-position hydraulic reversing valve 15 to be communicated with the oil port A, enabling the oil port T to be communicated with the blocked oil port B, enabling the oil port P of the second three-position hydraulic reversing valve 16 to be communicated with the blocked oil port B, enabling hydraulic oil to be communicated with an oil port C through the first shuttle valve 9 and the second shuttle valve 10, enabling the oil port A of all the two-position hydraulic reversing valves to be communicated with the oil port B of a first manual throttling valve 6, enabling the oil port B to be communicated with an oil return port 25, enabling the two-position hydraulic reversing valves to be driven to rotate positively, enabling a male joint 26 to rotate positively, enabling the rotating speed to be controlled to be 3-6r/min through the first manual throttling valve 6 during operation, enabling hydraulic oil to be communicated with the hydraulic oil port B to be communicated with the hydraulic control port B of the hydraulic control valve to be communicated with the hydraulic control port B, and enabling the hydraulic oil port B to be communicated with the hydraulic control port B of the hydraulic control valve to be communicated with the hydraulic control port B;
the opening of the second manual throttle valve 7 is adjusted to a certain opening degree, the display of the second pressure gauge 13 is observed, the second manual pressure reducing valve 4 is adjusted, and the pressure is adjusted to 20MPa; the first manual reversing valve 1 is operated to enable an oil port P to be communicated with an oil port B, an oil port T is communicated with an oil port C, hydraulic oil is led to a hydraulic control port a of the first three-position hydraulic reversing valve 15 and a hydraulic control port B of the second three-position hydraulic reversing valve 16, the oil port P of the first three-position hydraulic reversing valve 15 is communicated with the plugged oil port B, the oil port T is communicated with the oil port A, the oil port P of the second three-position hydraulic reversing valve 16 is communicated with the oil port A, meanwhile, hydraulic oil is led to a hydraulic control port a of the 4 two-position hydraulic reversing valves, the oil ports A and the oil ports C of the two-position hydraulic reversing valves are communicated, the oil ports B of the two-position rotary buckle motors are closed, the oil port A is communicated with an oil return port 25, the hydraulic oil drives the two-position rotary buckle motors to rotate reversely, the male joint 26 is enabled to collapse by a large torque force, the rotary speed is controlled to be 3-6r/min through the second manual reversing valve 7 when the joint collapses, and the valve core 1 is enabled to return to the middle position after the joint collapses.
In addition, the second manual reversing valve 2 is operated to communicate the oil port P with the oil port B, the oil port T is communicated with the oil port a, at this time, hydraulic oil is led to the hydraulic control ports a of the third three-position hydraulic reversing valve 17, the third two-position hydraulic reversing valve 20 and the fourth two-position hydraulic reversing valve 21, the oil port P of the third three-position hydraulic reversing valve 17 is communicated with the oil port B, the oil port T is communicated with the oil port a, the oil port B of the second group of turnbuckle motors 23 is communicated with the oil port B of the third manual throttle valve 8, the oil port a is communicated with the oil return port 25, hydraulic oil can drive the second group of turnbuckle motors 23 to rotate reversely, the male connector 26 is driven to rotate reversely, meanwhile, the oil cylinder 31 drives the male connector 26 to move upwards, the male connector 26 is rotated away from the female connector 27, the turnbuckle rotating speed can be adjusted by the third manual throttle valve 8, and the turnbuckle torque can be controlled by the third manual pressure reducing valve 5 during operation.
The control loop of the hydraulic shackle mechanism can realize all operations of the turnbuckle, the fastening buckle and the collapse buckle by flexibly changing the control mode of the hydraulic motor, and parts such as a shackle lifting cylinder, a positioning cylinder, a tooth claw and the like in the prior art are omitted, so that the problem that the tooth claw is difficult to engage with and disengage from a central gear is avoided, the shackle lifting operation is simpler and more convenient, and the operation efficiency and the reliability are improved.
The foregoing is illustrative of the present invention and is not to be construed as limiting the scope of the invention. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this invention, and are intended to be within the scope of this invention.
Claims (5)
1. The hydraulic shackle mechanism control loop is characterized by comprising a first manual reversing valve (1), a second manual reversing valve (2), a first manual reducing valve (3), a second manual reducing valve (4), a third manual reducing valve (5), a first manual throttling valve (6), a second manual throttling valve (7), a third manual throttling valve (8), a first three-position hydraulic reversing valve (15), a second three-position hydraulic reversing valve (16), a third three-position hydraulic reversing valve (17), a first two-position hydraulic reversing valve (18), a second two-position hydraulic reversing valve (19), a third two-position hydraulic reversing valve (20), a fourth two-position hydraulic reversing valve (21), a first group of screwing motors (22) and a second group of screwing motors (23), an oil port A of the first manual reversing valve (1) is connected with a hydraulic control port B of the first three-position hydraulic reversing valve (15) and a hydraulic control port a of the second three-position hydraulic reversing valve (16), an oil port B of the first manual reversing valve is connected with the hydraulic reversing valve (17 a) and a hydraulic reversing port B of the third hydraulic reversing valve (17, an oil port A of the first manual throttle valve (6) is connected with an oil port A of the first manual pressure reducing valve (3), an oil port B of the first manual throttle valve (6) is connected with an oil port P of the first three-position hydraulic reversing valve (15), an oil port A of the second manual throttle valve (7) is connected with an oil port A of the second manual pressure reducing valve (4), an oil port B of the second manual throttle valve (8) is connected with an oil port P of the second three-position hydraulic reversing valve (16), an oil port A of the third manual throttle valve (8) is connected with an oil port A of the third manual pressure reducing valve (5), an oil port B of the third manual throttle valve (17) is connected with an oil port P of the third three-position hydraulic reversing valve, and a first pressure gauge (12), a second pressure gauge (13) and a third pressure gauge (14) are correspondingly connected to the oil port B of the first manual throttle valve (6), the second manual throttle valve (7) and the third manual throttle valve (8);
the hydraulic fluid port A of the first two-position hydraulic reversing valve (18) is connected with the hydraulic fluid port A of the first three-position hydraulic reversing valve (15) and the hydraulic fluid port A of the third three-position hydraulic reversing valve (17), the hydraulic fluid port C of the hydraulic fluid port C is connected with the hydraulic fluid port A of the first group of rotary motor (22), the hydraulic fluid port A of the second two-position hydraulic reversing valve (19) is connected with the hydraulic fluid port A of the second three-position hydraulic reversing valve (16) and the hydraulic fluid port B of the third three-position hydraulic reversing valve (17), the hydraulic fluid port B of the hydraulic fluid port B is communicated with the hydraulic fluid port B of the first two-position hydraulic reversing valve (18), the hydraulic fluid port C of the hydraulic fluid port C is connected with the hydraulic fluid port A of the first three-position hydraulic reversing valve (15) and the hydraulic fluid port A of the third three-position hydraulic reversing valve (17), the hydraulic fluid port C of the third hydraulic reversing valve (21) is connected with the hydraulic fluid port B of the third hydraulic reversing valve (23);
the oil ports B of the first three-position hydraulic reversing valve (15) and the second three-position hydraulic reversing valve (16) are plugged.
2. The hydraulic trip mechanism control circuit of claim 1, further comprising:
the first shuttle valve (9) is characterized in that an oil port A of the first shuttle valve is connected with an oil port A of the first manual reversing valve (1), an oil port B of the first shuttle valve is connected with an oil port B of the first manual reversing valve (1), and an oil port C of the first shuttle valve is connected with a hydraulic control port a of the first two-position hydraulic reversing valve (18) and a hydraulic control port a of the second two-position hydraulic reversing valve (19);
the oil port A of the second shuttle valve (10) is connected with the oil port C of the first shuttle valve (9), and the oil port C of the second shuttle valve is connected with the hydraulic control port a of the third two-position hydraulic reversing valve (20) and the hydraulic control port a of the fourth two-position hydraulic reversing valve (21);
and an oil port A of the third shuttle valve (11) is connected with an oil port A of the second manual reversing valve (2), an oil port B of the third shuttle valve is connected with an oil port B of the second manual reversing valve (2), and an oil port C of the third shuttle valve is connected with an oil port B of the second shuttle valve (10).
3. The hydraulic shackle mechanism control circuit according to claim 2, characterized in that the oil port P of the first manual directional valve (1), the oil port P of the second manual directional valve (2), the oil port P of the first manual directional valve (3), the oil port P of the second manual directional valve (4) and the oil port P of the third manual directional valve (5) are connected with an oil supply port (24), and the oil port T of the first manual directional valve (1), the oil port T of the second manual directional valve (2), the oil port Y of the first manual directional valve (3), the oil port Y of the second manual directional valve (4), the oil port Y of the third manual directional valve (5), the oil port T of the first three-position hydraulic directional valve (15), the oil port T of the second three-position hydraulic directional valve (16) and the oil port T of the third three-position hydraulic directional valve (17) are connected with an oil return port (25).
4. A hydraulic trip mechanism control circuit as defined in claim 3, characterized in that the first manual directional valve (1) and the second manual directional valve (2) are replaced by electromagnetic control valves, and the first manual pressure reducing valve (3), the second manual pressure reducing valve (4), the third manual pressure reducing valve (5), the first manual throttle valve (6), the second manual throttle valve (7) and the third manual throttle valve (8) are replaced by electric proportional control valves.
5. A hydraulic trip mechanism control circuit according to claim 4, characterized in that the first manual throttle valve (6) and the second manual throttle valve (7) and the third manual throttle valve (8) are replaced by speed valves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810256497.1A CN108360985B (en) | 2018-03-27 | 2018-03-27 | Control loop of hydraulic shackle loading mechanism |
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| CN201810256497.1A CN108360985B (en) | 2018-03-27 | 2018-03-27 | Control loop of hydraulic shackle loading mechanism |
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| CN108360985B true CN108360985B (en) | 2024-03-01 |
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| CN102022106A (en) * | 2010-11-04 | 2011-04-20 | 中国石油天然气集团公司 | Drill stem connector automatic screwing control device and method |
| CN105317387A (en) * | 2014-07-28 | 2016-02-10 | 陕西胜慧源信息科技有限公司 | Drilling machine matched machine and tool used for petroleum drilling |
| WO2017101034A1 (en) * | 2015-12-16 | 2017-06-22 | 徐州重型机械有限公司 | Dual-power drive system, engineering machinery vehicle, and control method |
| CN208220684U (en) * | 2018-03-27 | 2018-12-11 | 中国石油天然气集团有限公司 | A kind of hydraulic upper screw-off mechanism control loop |
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2018
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|---|---|---|---|---|
| CN102022106A (en) * | 2010-11-04 | 2011-04-20 | 中国石油天然气集团公司 | Drill stem connector automatic screwing control device and method |
| CN105317387A (en) * | 2014-07-28 | 2016-02-10 | 陕西胜慧源信息科技有限公司 | Drilling machine matched machine and tool used for petroleum drilling |
| WO2017101034A1 (en) * | 2015-12-16 | 2017-06-22 | 徐州重型机械有限公司 | Dual-power drive system, engineering machinery vehicle, and control method |
| CN208220684U (en) * | 2018-03-27 | 2018-12-11 | 中国石油天然气集团有限公司 | A kind of hydraulic upper screw-off mechanism control loop |
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