CN104692272B - Elevator pressurized control device and its control method and rotary drilling rig - Google Patents
Elevator pressurized control device and its control method and rotary drilling rig Download PDFInfo
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- CN104692272B CN104692272B CN201510088843.6A CN201510088843A CN104692272B CN 104692272 B CN104692272 B CN 104692272B CN 201510088843 A CN201510088843 A CN 201510088843A CN 104692272 B CN104692272 B CN 104692272B
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- 238000005553 drilling Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 15
- 238000010276 construction Methods 0.000 abstract description 10
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 244000261422 Lysimachia clethroides Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/42—Control devices non-automatic
- B66D1/44—Control devices non-automatic pneumatic of hydraulic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid-Pressure Circuits (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of elevator pressurized control device and its control method and rotary drilling rig, it is related to engineering machinery control field.Wherein, elevator pressurized control device includes：Pressurization elevator pressure switch, sensor, controller, pressurized control magnetic valve and pressurization elevator braking electromagnetic valve.The present invention can make pressurization elevator stop pressurization when elevator pressurization occurs abnormal, can avoid the structural failure of rig, improve the safety and reliability of elevator pressurization type construction.
Description
Technical field
The present invention relates to engineering machinery control field, more particularly to a kind of elevator pressurized control device and its control method and
Rotary drilling rig.
Background technology
Rotary drilling rig is a kind of construction machinery of modernization, and the pore-forming being mainly used in railway, bridge, architectural engineering is made
Industry.Rotary drilling rig one of which pressurised form is pressurizeed for elevator, and elevator pressurization type is designed mainly for setting of casing operating mode, is had
There is pressure stroke long, plus-pressure is big, the characteristics of pulling force is big.Elevator pressurization can reduce vibration and impact of the operation to equipment,
Requirement of the rig in the big pressure, big stroke wanted needed for the operating modes such as setting of casing can be met simultaneously.
Elevator pressurizes type rotary drilling rig plus-pressure commonly greater than master file lifting force, in the rotary drilling rig course of work, when
Drill bit not yet reaches bottom hole, and unit head pressurization key shifts to an earlier date locking with drilling rod, if now operating compression motion, it will make pressurization
Power is acted on drilling rod completely, so as to by the master winch of wire rope transfers to rotary drilling rig.Because plus-pressure is big, along with drilling rod
The deadweight of itself, it will make master winch bear the load much larger than its own ability, can now cause the master winch structure of rig
Damage, the fracture of master file reel installation bolt etc., cause damage, and bring danger to rotary drilling rig construction.
The content of the invention
For the safety problem that above-mentioned prior art is present, the embodiment of the present invention propose a kind of elevator pressurized control device and
Its control method and rotary drilling rig.
A kind of one side according to embodiments of the present invention, there is provided elevator pressurized control device, including：Pressurization elevator pressure
Switch, sensor, controller, pressurized control magnetic valve and pressurization elevator braking electromagnetic valve；Controller include the first input interface,
Second input interface and the first output interface, the second output interface；Sensor is connected with the first input interface, is provided to controller
Master file lifts force electrical signal；Pressurization elevator pressure switch is connected with the second input interface, and whether guide's oil circuit is provided to controller
The signal of opening；First output interface of controller is connected with pressurized control magnetic valve, and control is sent to pressurized control magnetic valve
Signal；Second output interface of controller is connected with pressurization elevator braking electromagnetic valve, and control is sent to pressurization elevator braking electromagnetic valve
Signal processed.
In one embodiment, pressurized control magnetic valve includes pressurization lifting magnetic valve and pressurization decentralization magnetic valve.
In one embodiment, elevator pressurized control device also includes：Pressurization selecting switch, controller also includes that the 3rd is defeated
Incoming interface, pressurization selecting switch is connected with the 3rd input interface, and whether provided to controller carries out the indication signal of elevator pressurization.
In one embodiment, elevator pressurized control device also includes：Display for showing master file lifting force, control
Device also include controller local area network (CAN, Controller Area Network) EBI, the CAN interface of display with
The CAN interface connection of controller.
In one embodiment, it is connected with resistance between two CAN interfaces of display.
In one embodiment, controller is TTC60 controllers.
In one embodiment, elevator pressurized control device also includes：Electric supply installation, one end of electric supply installation connects respectively
One end of the power end and pressurization elevator pressure switch of sensor and controller, the other end of electric supply installation is grounded or by electricity
Source switch is grounded.
In one embodiment, sensor is bearing pin sensor.
In a kind of another aspect according to embodiments of the present invention, there is provided rotary drilling rig, including foregoing any one embodiment
Elevator pressurized control device.
A kind of another aspect according to embodiments of the present invention, there is provided control method of elevator pressurized control device, including：
Master file lifting force is detected by sensor；The master file lifting force detected in sensor exceedes the situation of default lifting force threshold
Under, controller sends control signal to pressurized control magnetic valve makes its dead electricity, to disconnect guide's oil circuit；In controller second is defeated
In the case that incoming interface can't detect the input signal of pressurization elevator pressure switch, controller is sent out to pressurization elevator braking electromagnetic valve
Going out control signal makes its dead electricity, to close pressurization hoist brake.
In one embodiment, the second input interface in controller can't detect the input letter of pressurization elevator pressure switch
In the case of number, after delaying time of controller default a period of time, sending control signal to pressurization elevator braking electromagnetic valve loses it
Electricity, to close pressurization hoist brake.
In one embodiment, control method also includes：Master file lifting force is transmitted to display and shown by controller.
In one embodiment, control method also includes：Pressurization selection is detected in the 3rd input interface of controller to open
In the case of the indication signal for carrying out elevator pressurization that pass sends, controller sends control signal to pressurized control magnetic valve makes it
Obtain electric；Controller the second input interface detect pressurization elevator pressure switch input signal in the case of, controller to
Pressurization elevator braking electromagnetic valve sends control signal, and to obtain it electric, to open pressurization hoist brake.
In one embodiment, K times that specified lifting force is rolled up based on lifting force threshold, the scope of K is 90%~130%.
The embodiment of the present invention can make pressurization elevator stop pressurization when elevator pressurization occurs abnormal, can avoid rig
Structural failure, improve elevator pressurization type construction safety and reliability.
By referring to the drawings to the detailed description of exemplary embodiment of the invention, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is the electrical block diagram of elevator pressurized control device one embodiment of the present invention.
In figure, 1- power switches, 2- electric supply installations, 3- displays, 4- first resistors, 5- second resistances, 6- pressurization selections
Switch, 7- pressurization elevator pressure switches, 8- sensors, 9- controllers, 10- pressurized control magnetic valves, 101- pressurization lifting electromagnetism
Valve, 102- pressurization decentralization magnetic valves, 11- pressurization elevator braking electromagnetic valves.
Specific embodiment
Below by drawings and Examples, technical scheme is described in further detail.
Fig. 1 is the electrical block diagram of elevator pressurized control device one embodiment of the present invention.With reference to Fig. 1, the present invention
The elevator pressurized control device of embodiment includes：Pressurization elevator pressure switch 7, sensor 8, controller 9, pressurized control magnetic valve
10 and pressurization elevator braking electromagnetic valve 11.Elevator pressurized control device can also further include：Power switch 1, electric supply installation
2nd, for show master file lifting force display 3 or pressurization selecting switch 6.Sensor 8 connects with the first input of controller 9
Mouth connection, master file lifting force electrical signal is provided to controller 9；Second input interface of pressurization elevator pressure switch 7 and controller 9
Connection, the signal whether guide's oil circuit is opened is provided to controller 9；First output interface of controller 9 and pressurized control electromagnetism
Valve 10 is connected, and control signal is sent to pressurized control magnetic valve 10, and usual pressurized control magnetic valve 10 includes pressurization lifting electromagnetism
Valve 101 and pressurization decentralization magnetic valve 102, therefore controller 9 can be provided with two the first output interfaces, respectively with pressurization lifting electricity
Magnet valve 101 and pressurization decentralization magnetic valve 102 are connected；Second output interface of controller 9 connects with pressurization elevator braking electromagnetic valve 11
Connect, control signal is sent to pressurization elevator braking electromagnetic valve 11.Pressurization selecting switch 6 connects with the 3rd input interface of controller 9
Connect, whether provided to controller 9 carries out the indication signal of elevator pressurization.The CAN interface of display 3 and the CAN of controller 9
Interface is connected.One end of electric supply installation 2 connects display 3, the power end of sensor 8 and controller 9 and pressurization selection and opens respectively
One end of 6 and pressurization elevator pressure switch 7 is closed, the other end of electric supply installation 2 is grounded or can be grounded by power switch 1.
Resistance can be connected between two CAN interfaces of display 3, namely can be even between two CAN interfaces of controller 9
Resistance is connected to, the resistance of connection for example can be terminal resistance.A kind of exemplary mode, can connect in two CAN of display 3
Two first resistors of parallel connection 4 and second resistance 5 are set between mouthful, to improve the reliability of signal transmission.
In an exemplary embodiment, controller 9 can select TTC60 controllers.Sensor 8 can select bearing pin
Sensor, bearing pin sensor can be installed at rig gooseneck boom master file pulley, for detecting master file lifting force, it is possible to export phase
The electric signal answered, the electric signal can be voltage signal or current signal.Electric supply installation 2 can be battery.With reference to Fig. 1, supply
The negative pole of electric installation 2 is grounded by power switch 1, and the positive pole of electric supply installation 2 connects power end, the electricity of display 3 of controller 9
The power end 81 of source and sensor 8, the positive pole of electric supply installation 2 connects one end 61 of pressurization selecting switch 6 simultaneously and pressurization is rolled up
One end 71 of uplift pressure switch 7；The earth terminal of controller 9, the earth terminal of display 3 are grounded simultaneously, the signal end 82 of sensor 8
The end of the first input interface 152 of controller 9 is connected, unrestricted as an example, 152 ends of controller 9 can be that analog quantity is defeated
Enter end, the analog quantity ground end of interface 133 of the connection controller 9 of earth terminal 83 of sensor 8；Pressurize the another of elevator pressure switch 7
End 72 connects the end of the second input interface 123 of controller 9, unrestricted as an example, and 123 ends of controller 9 can be numeral
Amount input；Pressurize selecting switch 6 the other end 62 connect controller 9 the end of the 3rd input interface 126, as an example rather than limit
System, 126 ends of controller 9 can be digital quantity input；It is connected between two CAN interface CAN-H and CAN-L of display 3
First resistor 4 and second resistance 5 in parallel, it is unrestricted as an example in order to improve the reliability of bus signal transmission, first
Resistance 4 and second resistance 5 can select 120 ohm of resistance；The CAN-H interface and CAN-L interfaces of display 3 are connected to simultaneously
The CAN interface of controller 9；Two ends of the first output interface 105 of controller 9 and 106 ends connect pressurization lifting electricity respectively
Magnet valve 101 and pressurization decentralization magnetic valve 102, the end of the second output interface 117 connection pressurization elevator braking electromagnetic valve of controller 9
11。
The present invention also proposes a kind of rotary drilling rig of the elevator pressurized control device including in previous embodiment.Illustrate below
Control process of the elevator pressurized control device when rotary drilling rig works.
When rotary drilling rig carries out elevator pressurization construction, selecting switch 6 of pressurizeing, the 126 pins inspection of controller 9 are first turned on
Input signal is measured, 105,106 pin output control signals are controlled, pressurization is lifted magnetic valve 101, pressurization decentralization magnetic valve
102 obtain electric, now operated pilot handle, open guide's oil circuit, and guide oil opens working connection, while making pressurization elevator pressure switch
7 close, and now 123 pins of controller detect input signal, control 117 pin output control signals, make pressurization elevator system
Moving electromagnetic valve 11 obtains electric closure, to open pressurization hoist brake, you can control hydraulic system carries out hoisting, decentralization behaviour
Make.When pilot handle operation is stopped, guide oil distress resolves, working connection is closed, while elevator pressure switch 7 of pressurizeing disconnects,
Now 123 pins of controller can't detect input signal, after the default a period of time T of time delay 117 pins can be controlled to stop
Only output control signal, makes the dead electricity of pressurization elevator braking electromagnetic valve 11, to close pressurization hoist brake, you can make hydraulic system
Stop hoisting, lowering operation.Time-delay closing pressurization hoist brake can reduce impact of the braking to hydraulic system, extension
The service life of hydraulic part, and reduce the rig that causes of braking and rock.
When elevator pressurization occurs abnormal, the master file lifting force that sensor is detected can increase at once, in sensor detection
In the case that the master file lifting force for arriving exceedes default lifting force threshold, now 152 ends of controller 9 detect input signal,
And the end of the first output interface 106 or 105 ends are controlled without output, lose pressurization decentralization magnetic valve 102 or pressurization lifting magnetic valve 101
Electricity, disconnects guide's oil circuit, and pressurization elevator pressure switch 7 is simultaneously switched off, and 123 ends of controller 9 can't detect input signal, then control
The end of the second output interface 117 is made without output, makes the dead electricity of pressurization elevator braking electromagnetic valve 11, to close pressurization hoist brake.This
Though when pilot handle do not stop pressurized operation yet, compression motion has been automatically stopped, it is impossible to continue pressurize.Can now shut down,
After fixing a breakdown, then enabling.So as to when elevator pressurization occurs abnormal, make pressurization elevator stop pressurization, can
To avoid the structural failure of rig, the safety and reliability of elevator pressurization type construction is improved.Controller in the present embodiment
Output interface is without output so that pressurization lifting magnetic valve 101, pressurization decentralization magnetic valve 102, the elevator braking electromagnetic valve 11 that pressurizes lose
Electricity, is only a kind of exemplary control mode of magnetic valve dead electricity, can also export other control signals so that magnetic valve dead electricity.
Drill bit toward transfer in hole or dug soil and be lifted up when, master file lifting force exceedes default lifting force threshold, then
The abnormal situation of above-mentioned elevator pressurization can occur.For example, drill bit is toward decentralization in hole, when drill bit not yet reaches bottom hole, unit head adds
Pressure key shifts to an earlier date locking with drilling rod, and operator does not realize, when still providing for pressurized operation, then it may happen that elevator pressurization is different
Often.
A kind of exemplary setting method for lifting force threshold is that lifting force threshold is set into the specified lifting force F of master fileM's
K times, it is preferable that the scope of K is 90%~130%, for example, the numerical value such as 110%, 120% can be chosen, so as to can both ensure
Construction safety, can prevent from judging by accident and influenceing normal construction again.
The master file lifting force electrical signal that can be input into for sensor 8 by controller 9 is converted to master file lifting force numerical value, and passes through
CAN is transmitted to display 3 and shown in real time, operator is at any time observed the change of numerical value, if numerical value change is different
Often, can stop operation immediately, more intuitively, conveniently, safely.
The present invention also proposes a kind of control method of elevator pressurized control device, including：Detect that master file is carried by sensor 8
Lift；In the case where the master file lifting force that sensor 8 is detected exceedes default lifting force threshold, controller 9 is controlled to pressurization
Magnetic valve processed 10 sends control signal makes its dead electricity, to disconnect guide's oil circuit, disconnects pressurization elevator pressure switch 7；In control
In the case that second input interface of device 9 can't detect the input signal of pressurization elevator pressure switch 7, controller 9 is rolled up to pressurization
Raising braking electromagnetic valve 11 and sending control signal makes its dead electricity, to close pressurization hoist brake.Sent out so as to be pressurizeed in elevator
When raw abnormal, pressurization elevator is stopped pressurization, the structural failure of rig can be avoided, improve the safety of elevator pressurization type construction
Property and reliability.
Further, the second input interface in controller 9 can't detect the feelings of the input signal of pressurization elevator pressure switch 7
Under condition, after the time delay of controller 9 default a period of time, sending control signal to pressurization elevator braking electromagnetic valve 11 makes its dead electricity,
To close pressurization hoist brake.Time-delay closing pressurization hoist brake can reduce impact of the braking to hydraulic system, extension
The service life of hydraulic part, and reduce the rig that causes of braking and rock.
Further, master file lifting force can also be transmitted to display 3 and shown by controller 9, make the operator can be at any time
It was observed that the change of numerical value, if numerical value change exception, can stop operation, more intuitively, conveniently, safely immediately.
Further, when elevator pressurization construction is carried out, pressurization selecting switch is detected in the 3rd input interface of controller 9
In the case of 6 indication signals for carrying out elevator pressurization for sending, controller 9 sends control signal to pressurized control magnetic valve 10 to be made
It obtains electric；In the case where the second input interface of controller 9 detects the input signal of pressurization elevator pressure switch 7, control
Device 9 sends control signal to pressurization elevator braking electromagnetic valve 11, and to obtain it electric, to open pressurization hoist brake, you can control liquid
Pressure system carries out hoisting, lowering operation.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can be by hardware
To complete, it is also possible to instruct the hardware of correlation to complete by program, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
Embodiments described above is merely illustrative of the technical solution of the present invention, and is not intended to limit the invention, all at this
Within the spirit and principle of invention, any modification, equivalent substitution and improvements made etc. should be included in protection model of the invention
Within enclosing.
Claims (14)
1. a kind of elevator pressurized control device, it is characterised in that including：Pressurization elevator pressure switch (7), sensor (8), control
Device (9), pressurized control magnetic valve (10) and pressurization elevator braking electromagnetic valve (11)；Controller (9) includes the first input interface,
Two input interfaces and the first output interface, the second output interface；Sensor (8) is connected with the first input interface, to controller (9)
Master file lifting force electrical signal is provided；Pressurization elevator pressure switch (7) is connected with the second input interface, is provided first to controller (9)
The signal whether Oil Guide road opens；First output interface of controller (9) is connected with pressurized control magnetic valve (10), if guide
Handle does not stop pressurized operation yet, indicates master file lifting force to exceed in the master file lifting force electrical signal of the first input interface input pre-
If lifting force threshold in the case of, being sent to pressurized control magnetic valve (10) makes the control signal of its dead electricity, to disconnect guide
Oil circuit；Second output interface of controller (9) is connected with pressurization elevator braking electromagnetic valve (11), in the input of the second input interface
In the case that signal designation guide's oil circuit disconnects, being sent to pressurization elevator braking electromagnetic valve (11) makes the control signal of its dead electricity,
To close pressurization hoist brake.
2. device as claimed in claim 1, it is characterised in that pressurized control magnetic valve (10) includes pressurization lifting magnetic valve
(101) and pressurization decentralization magnetic valve (102).
3. device as claimed in claim 1, it is characterised in that also include：Pressurization selecting switch (6), controller (9) also includes
3rd input interface, pressurization selecting switch (6) is connected with the 3rd input interface, adds to whether controller (9) offer carries out elevator
The indication signal of pressure.
4. device as claimed in claim 1, it is characterised in that also include：Display (3) for showing master file lifting force,
Controller (9) also includes controller local area network's CAN interface, and the CAN interface of display (3) is total with the CAN of controller (9)
Line interface is connected.
5. device as claimed in claim 4, it is characterised in that be connected with resistance between two CAN interfaces of display (3).
6. device as claimed in claim 1, it is characterised in that also include：Electric supply installation (2), one end point of electric supply installation (2)
Not Lian Jie sensor (8) and controller (9) power end and one end of pressurization elevator pressure switch (7), electric supply installation (2)
The other end is grounded or is grounded by power switch (1).
7. the device as described in claim any one of 1-5, it is characterised in that controller (9) is TTC60 controllers.
8. the device as described in claim any one of 1-5, it is characterised in that sensor (8) is bearing pin sensor.
9. a kind of rotary drilling rig, it is characterised in that including the elevator pressurized control device described in claim any one of 1-8.
10. a kind of control method of elevator pressurized control device as described in claim any one of 1-8, it is characterised in that bag
Include：
Master file lifting force is detected by sensor (8)；
If pilot handle does not stop pressurized operation yet, the master file lifting force detected in sensor (8) exceedes default lifting
In the case of force threshold, controller (9) sends control signal to pressurized control magnetic valve (10) makes its dead electricity, to disconnect guide oil
Road；
In the case where the second input interface of controller (9) can't detect the input signal of pressurization elevator pressure switch (7), really
Make guide's oil circuit to have disconnected, controller (9) sends control signal to pressurization elevator braking electromagnetic valve (11) makes its dead electricity, to close
Close pressurization hoist brake.
11. methods as claimed in claim 10, it is characterised in that
In the case where the second input interface of controller (9) can't detect the input signal of pressurization elevator pressure switch (7), control
After device (9) time delay default a period of time processed, sending control signal to pressurization elevator braking electromagnetic valve (11) makes its dead electricity, to close
Close pressurization hoist brake.
12. methods as claimed in claim 10, it is characterised in that also include：Controller (9) transmits to aobvious master file lifting force
Show that device (3) is shown.
13. methods as claimed in claim 10, it is characterised in that also include：
The instruction for the carrying out elevator pressurization letter that pressurization selecting switch (6) sends is detected in the 3rd input interface of controller (9)
In the case of number, controller (9) sends control signal to pressurized control magnetic valve (10), and to obtain it electric；
In the case where the second input interface of controller (9) detects the input signal of pressurization elevator pressure switch (7), control
Device (9) sends control signal to pressurization elevator braking electromagnetic valve (11), and to obtain it electric, to open pressurization hoist brake.
14. methods as claimed in claim 10, it is characterised in that K times that specified lifting force is rolled up based on the lifting force threshold,
The scope of K is 90%~130%.
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| CN201510088843.6A CN104692272B (en) | 2015-02-27 | 2015-02-27 | Elevator pressurized control device and its control method and rotary drilling rig |
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| CN201510088843.6A CN104692272B (en) | 2015-02-27 | 2015-02-27 | Elevator pressurized control device and its control method and rotary drilling rig |
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| CN104692272B true CN104692272B (en) | 2017-07-07 |
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| WO2016134519A1 (en) * | 2015-02-27 | 2016-09-01 | 徐州徐工基础工程机械有限公司 | Winch pressurization control device and control method therefor, and rotary drilling rig |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FI97612C (en) * | 1995-05-19 | 1997-01-27 | Tamrock Oy | An arrangement for guiding a rock drilling rig winch |
| CN201835746U (en) * | 2010-08-14 | 2011-05-18 | 徐州徐工基础工程机械有限公司 | Track detection and safety control system of rotary drilling rig |
| CN202729687U (en) * | 2012-07-31 | 2013-02-13 | 山东山推机械有限公司 | Automatic control device of rotary drilling rig winding brake |
| CN103410497A (en) * | 2013-07-31 | 2013-11-27 | 北京市三一重机有限公司 | Rotary drilling rig and power head bearing detection device thereof |
| CN103527535B (en) * | 2013-10-16 | 2015-11-18 | 上海中联重科桩工机械有限公司 | Rotary drilling rig and control method and control device for pressurizing oil cylinder of rotary drilling rig |
| CN203732904U (en) * | 2013-12-24 | 2014-07-23 | 徐州徐工基础工程机械有限公司 | Bus handle control system for rotary drilling rig |
| CN104261291B (en) * | 2014-08-15 | 2017-02-01 | 徐州徐工基础工程机械有限公司 | Protection method of hoisting mechanism of rotary drilling rig |
| CN204607472U (en) * | 2015-02-27 | 2015-09-02 | 徐州徐工基础工程机械有限公司 | Elevator pressurized control device and rotary drilling rig |
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