CN201513115U - High-low double-speed pressurizing system of rotary drilling rig - Google Patents
High-low double-speed pressurizing system of rotary drilling rig Download PDFInfo
- Publication number
- CN201513115U CN201513115U CN2009203090216U CN200920309021U CN201513115U CN 201513115 U CN201513115 U CN 201513115U CN 2009203090216 U CN2009203090216 U CN 2009203090216U CN 200920309021 U CN200920309021 U CN 200920309021U CN 201513115 U CN201513115 U CN 201513115U
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- Prior art keywords
- valve
- loop
- auxilliary
- pressurizing
- way valve
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- Expired - Fee Related
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Classifications
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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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
- F15B2211/20584—Combinations of pumps with high and low capacity
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/255—Flow control functions
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/355—Pilot pressure control
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6658—Control using different modes, e.g. four-quadrant-operation, working mode and transportation mode
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/75—Control of speed of the output member
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Types And Forms Of Lifts (AREA)
- Earth Drilling (AREA)
Abstract
The utility model provides a high-low double-speed pressurizing system of a rotary drilling rig, which relates to a hydraulic system used for controlling a power unit of the rotary drilling rig to lead the power unit to be capable of pressurizing with low speed and accelerating with high speed. The utility model aims at providing the high-low double-speed pressurizing system of the rotary drilling rig, which has simple structure and convenient operation, and comprises a pressurizing control handle, a switch valve, a main hydraulic circuit with larger output flow, an auxiliary hydraulic circuit with smaller output flow, and a pressurizing oil cylinder or a pressurizing winch, wherein the main hydraulic circuit and the auxiliary hydraulic circuit are connected in parallel and then are connected with the pressurizing oil cylinder or the pressurizing winch; a control button on a pressurizing operation handle can control a three-station four-way valve in the main hydraulic circuit or the auxiliary hydraulic circuit so as to lead a hydraulic pump to supply oil for the pressurizing oil cylinder or the pressurizing winch; when a main hydraulic pump supplies oil for the pressurizing oil cylinder or the pressurizing winch, the pressurizing oil cylinder or the pressurizing winch can be promoted rapidly; and when an auxiliary pump supplies oil for the pressurizing oil cylinder or the pressurizing winch, the pressurizing oil cylinder or the pressurizing winch can be pressurized with low speed.
Description
Technical field
The utility model relates to a kind of height dual-speed hydraulic control system, particularly relates to a kind of control system with height double speed pressure capacity that is used for rotary drilling rig.
Background technology
The unit head of rotary drilling rig is mainly used in the rotation of drive drilling rod and creeps into, and in drilling process, needs unit head that drilling rod is applied axial compression, and axial pressure motion at a slow speed; In the unit head lifting process,, require the unit head can the rapid axial lifter motion in order to improve efficiency of construction.And the compression system of present employed rotary drilling rig does not also have the double speed device that can make the pressurization of unit head low speed creep into, promote at a high speed.
The utility model content
The technical problems to be solved in the utility model provide a kind of simple in structure, easy and simple to handle, can realize that unit head low speed creeps into, the rotary drilling rig of high speed enhanced feature height double speed compression system.
The utility model rotary drilling rig height double speed compression system, comprise the pressurized control handle, transfer valve, main hydraulic circuit, auxilliary hydraulic circuit and pressurization oil cylinder or pressurization elevator, described main hydraulic circuit comprises Main Hydraulic Pump, major loop three-position four-way valve and major loop overflow valve, the oil inlet P 1 of described major loop three-position four-way valve is connected with the output of Main Hydraulic Pump, oil-out T1 is communicated with fuel tank, described major loop overflow valve is installed between Main Hydraulic Pump and the major loop three-position four-way valve, described auxilliary hydraulic circuit comprises auxilliary hydraulic pump, auxilliary loop three-position four-way valve and auxilliary loop overflow valve, the oil inlet P 2 of described auxilliary loop three-position four-way valve is connected with auxilliary hydraulic pressure delivery side of pump, oil-out T2 is communicated with fuel tank, described auxilliary loop overflow valve is installed between auxilliary hydraulic pump and the auxilliary loop three-position four-way valve, the actuator port A1 of described major loop three-position four-way valve is connected by pipeline with the actuator port A2 of auxilliary loop three-position four-way valve again and is connected by the actuator port A of first pipeline with pressurization oil cylinder or pressurization elevator, the actuator port B1 of described major loop three-position four-way valve is connected by pipeline with the actuator port B2 of auxilliary loop three-position four-way valve again and is connected by the actuator port B of second pipeline with pressurization oil cylinder or pressurization elevator, described transfer valve comprises two groups of oil-out S1 and S2, described oil-out S1 is connected with the device for driving valve body of auxilliary loop three-position four-way valve, and described oil-out S2 is connected with the device for driving valve body of major loop three-position four-way valve;
Described pressurized control handle comprises a pair of proportional pressure-reducing valve and pair of control loop, one end of described control loop is connected with proportional pressure-reducing valve respectively, the other end is connected with the oil-in R of transfer valve respectively, when the electromagnet dead electricity of transfer valve, control loop is connected with the device for driving valve body of auxilliary loop three-position four-way valve, when the electromagnet of transfer valve gets when electric, control loop is connected with the device for driving valve body of major loop three-position four-way valve;
The output flow of described Main Hydraulic Pump is greater than the output flow of auxilliary hydraulic pump.
The utility model rotary drilling rig height double speed compression system is equipped with unidirectional equalizing valve on wherein said second pipeline, and described unidirectional equalizing valve links to each other with pressurization oil cylinder or pressurization elevator, between described unidirectional equalizing valve and pressurization oil cylinder or the pressurization elevator overflow valve is housed also.
The utility model rotary drilling rig height double speed compression system also is equipped with switching push button on the wherein said pressurized control handle, and described switching push button links to each other with the electromagnet of transfer valve.
Link to each other with pressurization oil cylinder or pressurization elevator after main hydraulic circuit in the utility model rotary drilling rig height double speed compression system and the auxilliary hydraulic circuit parallel connection, the output flow of main hydraulic circuit is greater than the output flow of auxilliary hydraulic circuit, adjust by main hydraulic circuit or auxilliary hydraulic circuit with transfer valve and to be connected with pressurization oil cylinder or pressurization elevator, and the control button on the pressurized operation handle can be controlled the three-position four-way valve in main hydraulic circuit or the auxilliary hydraulic circuit, make hydraulic pump give pressurization oil cylinder or pressurization elevator fuel feeding, when Main Hydraulic Pump is given pressurization oil cylinder or pressurization elevator fuel feeding, pressurization oil cylinder or pressurization elevator can fast lifting, when auxilliary hydraulic pump was given pressurization oil cylinder or pressurization elevator fuel feeding, pressurization oil cylinder or pressurization elevator can pressurize at a slow speed.
Unidirectional equalizing valve and the overflow valve installed on second pipeline in the utility model rotary drilling rig height double speed compression system prevent from the stall that hydraulic shock and gravity cause to occur when pressurize oil cylinder or pressurization elevator move up and down; Switching push button in the pressurized operation handle be for control the transfer valve electromagnet, dead electricity.
Below in conjunction with accompanying drawing rotary drilling rig height double speed compression system of the present utility model is described further.
Description of drawings
Fig. 1 is the structural representation of the utility model rotary drilling rig height double speed compression system.
The specific embodiment
As shown in Figure 1, the utility model rotary drilling rig height double speed compression system comprises pressurized control handle 1, transfer valve 2, main hydraulic circuit 3, auxilliary hydraulic circuit 4 and pressurization oil cylinder or pressurization elevator 5, pressurization oil cylinder or pressurization elevator 5 are used to drive the unit head of rotary drilling rig, main hydraulic circuit 3 comprises the bigger Main Hydraulic Pump of output flow 3.1, major loop three-position four-way valve 3.2 and major loop overflow valve 3.3, the oil inlet P 1 of major loop three-position four-way valve 3.2 is connected with the output of Main Hydraulic Pump 3.1, oil-out T1 is communicated with fuel tank, major loop overflow valve 3.3 is installed between Main Hydraulic Pump 3.1 and the major loop three-position four-way valve 3.2, auxilliary hydraulic circuit 4 comprises the auxilliary hydraulic pump 4.1 that output flow is less, auxilliary loop three-position four-way valve 4.2 and auxilliary loop overflow valve 4.3, the oil inlet P 2 of auxilliary loop three-position four-way valve 4.2 is connected with the output of auxilliary hydraulic pump 4.1, oil-out T2 is communicated with fuel tank, auxilliary loop overflow valve 4.3 is installed between auxilliary hydraulic pump 4.1 and the auxilliary loop three-position four-way valve 4.2, the actuator port A1 of major loop three-position four-way valve 3.2 is connected by pipeline with the actuator port A2 of auxilliary loop three-position four-way valve 4.2 again and is connected by the actuator port A of first pipeline 6 with pressurization oil cylinder or pressurization elevator 5, the actuator port B1 of major loop three-position four-way valve 3.2 is connected by pipeline with the actuator port B2 of auxilliary loop three-position four-way valve 4.2 again and is connected by the actuator port B of second pipeline 7 with pressurization oil cylinder or pressurization elevator 5, unidirectional equalizing valve 8 is housed on second pipeline 7, unidirectional equalizing valve 8 links to each other with pressurization oil cylinder or pressurization elevator 5, between unidirectional equalizing valve 8 and pressurization oil cylinder or the pressurization elevator 5 overflow valve 9 is housed also.Transfer valve 2 comprises two groups of oil-out S1 and S2, and oil-out S1 is connected with the device for driving valve body of auxilliary loop three-position four-way valve 4.2, and oil-out S2 is connected with the device for driving valve body of major loop three-position four-way valve 3.2.
The course of work of the high low speed compression system of the utility model rotary drilling rig is summarized as follows:
When needs pressurization oil cylinder or pressurization elevator 5 low speed processes, the control switching push button makes the electromagnet dead electricity of transfer valve 2, then control loop 1.3,1.4 is connected with the device for driving valve body of auxilliary loop three-position four-way valve 4.2, pull proportional pressure-reducing valve 1.1 then, the oil inlet P 2 of auxilliary loop three-position four-way valve 4.2 is connected with actuator port A2, oil-out T2 is connected with actuator port B2, then auxilliary hydraulic pump 4.1 is delivered to hydraulic oil low pressure pressurization oil cylinder or the pressurization elevator 5 from first pipeline 6 at a slow speed, makes pressurization oil cylinder or pressurization elevator 5 process at a slow speed.
When needs pressurization oil cylinder or the 5 high speed backhauls of pressurization elevator, the control switching push button gets the electromagnet of transfer valve 2, then control loop 1.3,1.4 is connected with the device for driving valve body of major loop three-position four-way valve 3.2, pull proportional pressure-reducing valve 1.2 then, the oil inlet P 1 of major loop three-position four-way valve 3.2 is connected with actuator port B1, oil-out T1 is connected with actuator port A1, then Main Hydraulic Pump 3.1 is delivered to the hydraulic oil high pressure pressurization oil cylinder or the pressurization elevator 5 from second pipeline 7 fast, makes pressurization oil cylinder or pressurization elevator 5 quick returns.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (3)
1. rotary drilling rig height double speed compression system, it is characterized in that: comprise pressurized control handle (1), transfer valve (2), main hydraulic circuit (3), auxilliary hydraulic circuit (4) and pressurization oil cylinder or pressurization elevator (5), described main hydraulic circuit (3) comprises Main Hydraulic Pump (3.1), major loop three-position four-way valve (3.2) and major loop overflow valve (3.3), the oil inlet P 1 of described major loop three-position four-way valve (3.2) is connected with the output of Main Hydraulic Pump (3.1), oil-out T1 is communicated with fuel tank, described major loop overflow valve (3.3) is installed between Main Hydraulic Pump (3.1) and the major loop three-position four-way valve (3.2), described auxilliary hydraulic circuit (4) comprises auxilliary hydraulic pump (4.1), auxilliary loop three-position four-way valve (4.2) and auxilliary loop overflow valve (4.3), the oil inlet P 2 of described auxilliary loop three-position four-way valve (4.2) is connected with the output of auxilliary hydraulic pump (4.1), oil-out T2 is communicated with fuel tank, described auxilliary loop overflow valve (4.3) is installed between auxilliary hydraulic pump (4.1) and the auxilliary loop three-position four-way valve (4.2), the actuator port A1 of described major loop three-position four-way valve (3.2) is connected by pipeline with the actuator port A2 of auxilliary loop three-position four-way valve (4.2) again and is connected by the actuator port A of first pipeline (6) with pressurization oil cylinder or pressurization elevator (5), the actuator port B1 of described major loop three-position four-way valve (3.2) is connected by pipeline with the actuator port B2 of auxilliary loop three-position four-way valve (4.2) again and is connected by the actuator port B of second pipeline (7) with pressurization oil cylinder or pressurization elevator (5), described transfer valve (2) comprises two groups of oil-out S1 and S2, described oil-out S1 is connected with the device for driving valve body of auxilliary loop three-position four-way valve (4.2), and described oil-out S2 is connected with the device for driving valve body of major loop three-position four-way valve (3.2);
Described pressurized control handle (1) comprises a pair of proportional pressure-reducing valve (1.1,1.2) and pair of control loop (1.3,1.4), described control loop (1.3,1.4) an end respectively with proportional pressure-reducing valve (1.1,1.2) be connected, the other end is connected with the oil-in R of transfer valve (2) respectively, when the electromagnet dead electricity of transfer valve (2), control loop (1.3,1.4) be connected with the device for driving valve body of auxilliary loop three-position four-way valve (4.2), when the electromagnet of transfer valve (2) gets when electric control loop (1.3,1.4) be connected with the device for driving valve body of major loop three-position four-way valve (3.2);
The output flow of described Main Hydraulic Pump (3.1) is greater than the output flow of auxilliary hydraulic pump (4.1).
2. rotary drilling rig height double speed compression system according to claim 1, it is characterized in that: unidirectional equalizing valve (8) is housed on described second pipeline (7), described unidirectional equalizing valve (8) links to each other with pressurization oil cylinder or pressurization elevator (5), between described unidirectional equalizing valve (8) and pressurization oil cylinder or the pressurization elevator (5) overflow valve (9) is housed also.
3. rotary drilling rig height double speed compression system according to claim 2, it is characterized in that: switching push button (1.5) also is housed on the described pressurized control handle (1), and described switching push button (1.5) links to each other with the electromagnet of transfer valve (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203090216U CN201513115U (en) | 2009-08-27 | 2009-08-27 | High-low double-speed pressurizing system of rotary drilling rig |
| PCT/CN2010/074321 WO2011023028A1 (en) | 2009-08-27 | 2010-06-23 | High and low dual-speed pressurizing system for rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203090216U CN201513115U (en) | 2009-08-27 | 2009-08-27 | High-low double-speed pressurizing system of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513115U true CN201513115U (en) | 2010-06-23 |
Family
ID=42484523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203090216U Expired - Fee Related CN201513115U (en) | 2009-08-27 | 2009-08-27 | High-low double-speed pressurizing system of rotary drilling rig |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201513115U (en) |
| WO (1) | WO2011023028A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023028A1 (en) * | 2009-08-27 | 2011-03-03 | 湖南三一智能控制设备有限公司 | High and low dual-speed pressurizing system for rotary drilling rig |
| CN102167266A (en) * | 2011-01-24 | 2011-08-31 | 福田雷沃国际重工股份有限公司 | Main winch rapid-descent and confluent return oil regeneration system of rotary drilling rig |
| CN102900419A (en) * | 2012-09-29 | 2013-01-30 | 徐州雷曼机械科技有限公司 | Hydraulic control system for rotary expansion device of rotary drilling rig |
| CN103527534A (en) * | 2013-10-24 | 2014-01-22 | 连云港天明装备有限公司 | Novel feeding hydraulic system of all-hydraulic drill |
| CN104060979A (en) * | 2014-06-12 | 2014-09-24 | 恒天九五重工有限公司 | Automatic-pressurization logic control loop of all-hydraulic long spiral drilling machine |
| CN104235090A (en) * | 2014-07-23 | 2014-12-24 | 北京市三一重机有限公司 | Negative-feedback hydraulic system and rotary drilling rig |
| CN104329246A (en) * | 2014-10-21 | 2015-02-04 | 中国石油集团渤海钻探工程有限公司 | Test table used for detecting working performance of oil pump of intelligent drilling tool |
| CN105570213A (en) * | 2016-03-07 | 2016-05-11 | 中冶赛迪工程技术股份有限公司 | Spray nozzle regulating hydraulic control system |
| EP2600012A3 (en) * | 2011-12-01 | 2016-12-21 | Liebherr-Hydraulikbagger GmbH | Hydraulic system |
| CN110296111A (en) * | 2019-06-28 | 2019-10-01 | 北京三一智造科技有限公司 | A kind of hydraulic motor system, rotary drilling rig and application method |
| CN111188572A (en) * | 2019-12-30 | 2020-05-22 | 恒天九五重工有限公司 | Automatic rapid pressurization control method for rotary drilling rig |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019205151A1 (en) | 2019-04-10 | 2020-10-15 | Deere & Company | Hydraulic system and vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121501A (en) * | 1977-07-11 | 1978-10-24 | Caterpillar Tractor Co. | Flow combining system for dual pumps |
| JPH08302751A (en) * | 1995-04-28 | 1996-11-19 | Sumitomo Constr Mach Co Ltd | Boom-lifting priority hydraulic circuit for hydraulic shovel |
| CN1296628C (en) * | 2005-03-15 | 2007-01-24 | 浙江大学 | Double pump-motor hydraulic driving system for lifting oil cylinder of engineering machine |
| DE102006060351B8 (en) * | 2006-12-20 | 2008-07-24 | Sauer-Danfoss Gmbh & Co Ohg | Hydraulic circuit with energy recovery |
| CN201037377Y (en) * | 2007-02-11 | 2008-03-19 | 柳州市华力实业有限责任公司 | Horizontal positioning drilling machine valve control interflow speeding up hydraulic system |
| CN201206572Y (en) * | 2008-05-30 | 2009-03-11 | 湖南奥盛特重工科技有限公司 | Bidirectional confluence control system for reciprocation of main hoist of rotary drill rig |
| CN201513115U (en) * | 2009-08-27 | 2010-06-23 | 北京市三一重机有限公司 | High-low double-speed pressurizing system of rotary drilling rig |
-
2009
- 2009-08-27 CN CN2009203090216U patent/CN201513115U/en not_active Expired - Fee Related
-
2010
- 2010-06-23 WO PCT/CN2010/074321 patent/WO2011023028A1/en active Application Filing
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023028A1 (en) * | 2009-08-27 | 2011-03-03 | 湖南三一智能控制设备有限公司 | High and low dual-speed pressurizing system for rotary drilling rig |
| CN102167266A (en) * | 2011-01-24 | 2011-08-31 | 福田雷沃国际重工股份有限公司 | Main winch rapid-descent and confluent return oil regeneration system of rotary drilling rig |
| CN102167266B (en) * | 2011-01-24 | 2013-07-24 | 福田雷沃国际重工股份有限公司 | Main winch rapid-descent and confluent return oil regeneration system of rotary drilling rig |
| EP2600012A3 (en) * | 2011-12-01 | 2016-12-21 | Liebherr-Hydraulikbagger GmbH | Hydraulic system |
| CN102900419B (en) * | 2012-09-29 | 2015-04-22 | 徐州雷曼机械科技有限公司 | Hydraulic control system for rotary expansion device of rotary drilling rig |
| CN102900419A (en) * | 2012-09-29 | 2013-01-30 | 徐州雷曼机械科技有限公司 | Hydraulic control system for rotary expansion device of rotary drilling rig |
| CN103527534A (en) * | 2013-10-24 | 2014-01-22 | 连云港天明装备有限公司 | Novel feeding hydraulic system of all-hydraulic drill |
| CN104060979A (en) * | 2014-06-12 | 2014-09-24 | 恒天九五重工有限公司 | Automatic-pressurization logic control loop of all-hydraulic long spiral drilling machine |
| CN104060979B (en) * | 2014-06-12 | 2016-06-01 | 恒天九五重工有限公司 | A kind of all-hydraulic long-spiral drilling machine pressurizes loop control logic automatically |
| CN104235090A (en) * | 2014-07-23 | 2014-12-24 | 北京市三一重机有限公司 | Negative-feedback hydraulic system and rotary drilling rig |
| CN104235090B (en) * | 2014-07-23 | 2016-08-24 | 北京市三一重机有限公司 | Negative feedback hydraulic system and rotary drilling rig |
| CN104329246A (en) * | 2014-10-21 | 2015-02-04 | 中国石油集团渤海钻探工程有限公司 | Test table used for detecting working performance of oil pump of intelligent drilling tool |
| CN105570213A (en) * | 2016-03-07 | 2016-05-11 | 中冶赛迪工程技术股份有限公司 | Spray nozzle regulating hydraulic control system |
| CN110296111A (en) * | 2019-06-28 | 2019-10-01 | 北京三一智造科技有限公司 | A kind of hydraulic motor system, rotary drilling rig and application method |
| CN110296111B (en) * | 2019-06-28 | 2021-05-25 | 北京三一智造科技有限公司 | Hydraulic motor system, rotary drilling rig and using method |
| CN111188572A (en) * | 2019-12-30 | 2020-05-22 | 恒天九五重工有限公司 | Automatic rapid pressurization control method for rotary drilling rig |
| CN111188572B (en) * | 2019-12-30 | 2021-07-02 | 恒天九五重工有限公司 | Automatic rapid pressurization control method for rotary drilling rig |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011023028A1 (en) | 2011-03-03 |
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