CN103470244B - Automation control system for fingerboard - Google Patents
Automation control system for fingerboard Download PDFInfo
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- CN103470244B CN103470244B CN201310444521.1A CN201310444521A CN103470244B CN 103470244 B CN103470244 B CN 103470244B CN 201310444521 A CN201310444521 A CN 201310444521A CN 103470244 B CN103470244 B CN 103470244B
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Abstract
Automation control system for fingerboard, by increasing pneumatic operated valve in the gas circuit between pressure gas source and each cylinder, and pneumatic operated valve is carried out the combination of N × M ranks, controlled pneumatic operated valve by the M row electromagnetic valve of single-row N row electromagnetic valve and single file gas circuit is turned on and off, cleverly the one_to_one corresponding control mode of electromagnetic valve in prior art and cylinder is converted into electromagnetic valve and pneumatic operated valve co-controlling cylinder: the line n electromagnetic valve in single-row N row electromagnetic valve, m row electromagnetic valve in the M row electromagnetic valve of single file all electric time, line n in pneumatic operated valve group, the pneumatic operated valve of m row, just by pressure gas source and line n, gas circuit conducting between the cylinder of m row.When number of cylinders is N × M, the electromagnetic valve quantity used is only N+M, and the N × M in hinge structure greatly reduces, and the cost of automation control system is lower, debugging, maintenance work the most simpler.
Description
Technical field
The present invention relates to the automation control system for fingerboard, belong to petroleum drilling and mining technical field.
Background technology
Fingerboard is arranged on the quadruple board platform of oil-well rig, the finger of similar people, and the upset of clamp is realized the switch of the comb passage of the drilling tools such as drilling rod, drill collar and sleeve pipe by cylinder.Drilling tool is after fingerboard is put, even if running into the bad weather situations such as strong wind, also safe and stable can be erected at quadruple board platform.
Existing fingerboard has the branched cylinder of arrangement in several rows multiple row, and every cylinder is controlled by single electromagnetic valve.In embodiment as shown in Figure 1, this is used for the automation control system of fingerboard, is mainly made up of pressure gas source 1, electromagnetic valve group 2, air cylinder group 3.Wherein, pressure gas source 1 includes air filter 101, air relief valve 102 and the source of the gas three linked piece of Pressure gauge 103 composition, be respectively intended to pressure air is filtered, pressure regulation, display.Wherein, air cylinder group 3 is amounted to 6 cylinders 301,302,303,304,305,306 formed by 2 row, 3 row.Wherein, electromagnetic valve group 2 is formed electromagnetism valve island by 6 two-position four-ways, normally closed, direct-acting electromagnetic valve 201,202,203,204,205,206, i.e. 6 electromagnetic valves are arranged on a base plate, by base plate through import P central gas supply, concentrate aerofluxus through outlet T, port B is enclosed all the time, and the outlet A of each electromagnetic valve is connected with the rodless cavity of a corresponding above-mentioned cylinder: electromagnetic valve 201 connects cylinder 301；Electromagnetic valve 202 connects cylinder 302；Electromagnetic valve 203 connects cylinder 303；Electromagnetic valve 204 connects cylinder 304；Electromagnetic valve 205 connects cylinder 305；Electromagnetic valve 206 connects cylinder 306.
When electromagnetic valve 201 obtains electric, its outlet A connects import P, enters the rodless cavity of cylinder 301 after electromagnetic valve 201 from pressure gas source 1 pressure air out, and the piston rod of cylinder 301 stretches out.When electromagnetic valve 201 dead electricity, its import P connects with port B, and pressure air is enclosed, and outlet A communicates through outlet T and air, and the piston rod of cylinder 301 is retracted.In like manner, electromagnetic valve 202 electric/dead electricity time, the piston rod of cylinder 302 stretches out/retracts；Electromagnetic valve 203 electric/dead electricity time, the piston rod of cylinder 303 stretches out/retracts；Electromagnetic valve 204 electric/dead electricity time, the piston rod of cylinder 304 stretches out/retracts；Electromagnetic valve 205 electric/dead electricity time, the piston rod of cylinder 305 stretches out/retracts；Electromagnetic valve 206 electric/dead electricity time, the piston rod of cylinder 306 stretches out/retracts.
Along with the brill of rig strengthens deeply, drilling tool quantity also increases, and the number of cylinders in corresponding fingerboard also gets more and more, and when boring deep such as 7000m, the cylinder in fingerboard will be more than 300.In the automation control system of above-mentioned existing fingerboard, owing to using electromagnetic valve and cylinder control mode one to one, numerous electromagnetic valves causes cost compared with the problem such as high, electronic control module is many, debugging maintenance workload is big.
Summary of the invention
The invention reside in and optimize for the automation control system of fingerboard, make fingerboard meet when brill requires deeply to control simpler, cost is lower.
To this end, the invention provides a kind of automation control system for fingerboard, including pressure gas source, electromagnetic valve group, air cylinder group, it is characterised in that: also include pneumatic operated valve group；In above-mentioned air cylinder group, in cylinder, pneumatic operated valve group, pneumatic operated valve all presents the ranks combination of N × M, and the above-mentioned electromagnetic valve group single-row N row electromagnetic valve by inlet parallel to pressure gas source, the M row electromagnetic valve of single file form；The outlet of the Nth row electromagnetic valve in above-mentioned single-row N row electromagnetic valve is connected with the control mouth of the pneumatic operated valve of the line n in above-mentioned pneumatic operated valve group, the import of the pneumatic operated valve that the outlet of the m column electromagnetic valve in the M row electromagnetic valve of above-mentioned single file arranges with the m in above-mentioned pneumatic operated valve group is connected, and in above-mentioned pneumatic operated valve group, the outlet of the pneumatic operated valve of line n, m row is connected with the rodless cavity of the line n in air cylinder group, the cylinder of m row；
Wherein, N represents total line number, and n represents concrete line number, n=1 ... N；M represents total columns, and m represents concrete columns, n=1 ... M.
The automation control system for fingerboard of the present invention, by increasing pneumatic operated valve in the gas circuit between pressure gas source and each cylinder, and pneumatic operated valve is carried out the combination of N × M ranks, controlled pneumatic operated valve by the M row electromagnetic valve of single-row N row electromagnetic valve and single file gas circuit is turned on and off, cleverly the one_to_one corresponding control mode of electromagnetic valve in prior art and cylinder is converted into electromagnetic valve and pneumatic operated valve co-controlling cylinder: the line n electromagnetic valve in single-row N row electromagnetic valve, m row electromagnetic valve in the M row electromagnetic valve of single file all electric time, line n in pneumatic operated valve group, the pneumatic operated valve of m row, by pressure gas source and line n, gas circuit conducting between the cylinder of m row, cylinder stretches out；Otherwise, m row electromagnetic valve dead electricity in the line n electromagnetic valve in single-row N row electromagnetic valve obtains the M row electromagnetic valve of electric, single file, or the m row electromagnetic valve worked as in the M row electromagnetic valve of the line n electromagnetic valve dead electricity in single-row N row electromagnetic valve, single file obtains electric, or work as the m row electromagnetic valve dead electricity in the M row electromagnetic valve of the line n electromagnetic valve dead electricity in single-row N row electromagnetic valve, single file, cylinder is all retracted.Therefore, in the automation control system for fingerboard of the present invention, when number of cylinders is N × M, the electromagnetic valve quantity used is only N+M rather than N × M of the prior art.When number of cylinders reach tens, up to a hundred time, the electromagnetic valve quantity in the present invention will be far less than electromagnetic valve quantity in prior art.Although pneumatic operated valve increases, but its cost is well below electromagnetic valve, and without the electronic control module of electromagnetic valve, and the debugging of automation control system, maintenance work are the most simpler.
Preferred as one, the automation control system for fingerboard of the present invention, it is further characterized in that: in above-mentioned pneumatic operated valve group, pneumatic operated valve is two-position three way, normal off pneumatic operated valve；In above-mentioned electromagnetic valve group, electromagnetic valve is bi-bit bi-pass, normally closed, direct acting, gas electromagnetic valve.Certainly, pneumatic operated valve may be used without two-position four-way etc., only uses and controls mouth, import, outlet, and by remaining port closed.In like manner, electromagnetic valve may be used without two-position three way, two-position four-way etc., only uses import, outlet, and by remaining port closed.
Preferred as one, the automation control system for fingerboard of the present invention, it is further characterized in that: in above-mentioned cylinder assembly, cylinder is provided with back-moving spring at rod chamber.So, cylinders retract can be made convenient.
Preferred as one, the automation control system for fingerboard of the present invention, it is further characterized in that: above-mentioned pressure gas source includes air filter, air relief valve and Pressure gauge.So, it is simple to the pressed gas that offer more cleaning, pressure are suitable.
For making the chucking power that fingerboard is bigger to drilling tool offer, and control more stable, for the automation control system of fingerboard, as optimizing further, it is possible to use hydraulic control.Therefore, present invention provides a kind of automation control system for fingerboard, including pressure liquid source, electromagnetic valve group, fluid cylinder group, it is characterised in that: also include hydraulic operated valve group；In above-mentioned fluid cylinder group, in fluid cylinder, hydraulic operated valve group, hydraulic operated valve all presents the ranks combination of N × M, and the above-mentioned electromagnetic valve group single-row N row electromagnetic valve by inlet parallel to pressure liquid source, the M row electromagnetic valve of single file form；The outlet of the Nth row electromagnetic valve in above-mentioned single-row N row electromagnetic valve is connected with the control mouth of the hydraulic operated valve of the line n in above-mentioned hydraulic operated valve group, the inlet of the hydraulic operated valve that the outlet of the m column electromagnetic valve in the M row electromagnetic valve of above-mentioned single file arranges with the m in above-mentioned hydraulic operated valve group is connected, and in above-mentioned hydraulic operated valve group, the leakage fluid dram of the hydraulic operated valve of line n, m row is connected with the rodless cavity of the line n in fluid cylinder group, the fluid cylinder of m row；
Wherein, N represents total line number, and n represents concrete line number, n=1 ... N；M represents total columns, and m represents concrete columns, n=1 ... M.
Accordingly, preferred as one, the automation control system for fingerboard of the present invention, it is further characterized in that: in above-mentioned hydraulic operated valve group, hydraulic operated valve is two-position three way, normal off hydraulic operated valve；In above-mentioned electromagnetic valve group, electromagnetic valve is bi-bit bi-pass, normally closed, direct acting, liquid electromagnetic valve.
Accordingly, preferred as one, the automation control system for fingerboard of the present invention, it is further characterized in that: in above-mentioned fluid cylinder assembly, fluid cylinder is provided with back-moving spring at rod chamber.
Accordingly, preferred as one, the automation control system for fingerboard of the present invention, it is further characterized in that: above-mentioned pressure liquid source includes liquid filter, air relief valve and Pressure gauge.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schematic diagram of the automation control system being currently used for fingerboard；
Fig. 2 is the schematic diagram of the automation control system for fingerboard of one embodiment of the invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with being specifically illustrating, the present invention is expanded on further.
In embodiment as shown in Figure 2, this is used for the automation control system of fingerboard, is mainly made up of pressure gas source 4, electromagnetic valve group 5 and electromagnetic valve group 6, pneumatic operated valve group 7, air cylinder group 8.Wherein, pressure gas source 4 includes air filter 401, air relief valve 402 and the source of the gas three linked piece of Pressure gauge 403 composition, be respectively intended to pressure air is filtered, pressure regulation, display.Wherein, air cylinder group 8 is amounted to 6 cylinders 811,812,813,821,822,823 formed by 2 row, 3 row；Pneumatic operated valve group 7 is amounted to 6 two-position three ways, normal off pneumatic operated valves 711,712,713,721,722,723 by 2 row, 3 row and forms (convenient for line, deliberately the order up and down of the first row, the second row to be overturned in figure), and its middle port T closes；2 single-row row two-position three ways that electromagnetic valve group 5 is parallel on pressure gas source 4 by import P, that normally closed, direct acting, gas electromagnetic valve 510,520 form is (convenient for line, the order up and down of the first row, the second row is deliberately overturned by figure), its middle port T closes；3 two-position three ways of the single file that electromagnetic valve group 6 is parallel on pressure gas source 4 by import P, normally closed, direct acting, gas electromagnetic valve 601,602,603 form, and its middle port T closes.In single-row 2 electromagnetic valves 510,520, the outlet A of the 1st row electromagnetic valve 510 is connected with the control mouth C of the pneumatic operated valve 711,712,713 of the 1st row in pneumatic operated valve group 7；The outlet A of the 2nd row electromagnetic valve 520 is connected with the control mouth C of the pneumatic operated valve 721,722,723 of the 2nd row in pneumatic operated valve group 7.In 3 electromagnetic valves 601,602,603 of single file, the outlet A of the 1st row electromagnetic valve 601 is connected with the import P of the pneumatic operated valve 711,721 of the 1st row in pneumatic operated valve group 7；The outlet A of the 2nd row electromagnetic valve 602 is connected with the import P of the pneumatic operated valve 712,722 of the 2nd row in pneumatic operated valve group 7；The outlet A of the 3rd row electromagnetic valve 603 is connected with the import P of the pneumatic operated valve 713,723 of the 3rd row in pneumatic operated valve group 7.In pneumatic operated valve group 7, the outlet A of the pneumatic operated valve 711 of the 1st row, the 1st row is connected with the rodless cavity of the 1st row in air cylinder group, the cylinder 811 of the 1st row；In pneumatic operated valve group 7, the outlet A of the pneumatic operated valve 712 of the 1st row, the 2nd row is connected with the rodless cavity of the 1st row in air cylinder group, the cylinder 812 of the 2nd row；In pneumatic operated valve group 7, the outlet A of the pneumatic operated valve 713 of the 1st row, the 3rd row is connected with the rodless cavity of the 1st row in air cylinder group, the cylinder 813 of the 3rd row.
In pneumatic operated valve group 7, the outlet A of the pneumatic operated valve 721 of the 2nd row, the 1st row is connected with the rodless cavity of the 2nd row in air cylinder group, the cylinder 821 of the 1st row；In pneumatic operated valve group 7, the outlet A of the pneumatic operated valve 722 of the 2nd row, the 2nd row is connected with the rodless cavity of the 2nd row in air cylinder group, the cylinder 822 of the 2nd row；In pneumatic operated valve group 7, the outlet A of the pneumatic operated valve 723 of the 2nd row, the 3rd row is connected with the rodless cavity of the 2nd row in air cylinder group, the cylinder 823 of the 3rd row.
When the 1st row electromagnetic valve 510 in 2 single-row row electromagnetic valves, single file 3 row electromagnetic valves in the 1st row electromagnetic valve 601 all electric time, 1st row, the pneumatic operated valve 711 of the 1st row in pneumatic operated valve group, by the gas circuit conducting between pressure gas source the 4 and the 1st row, the 1st cylinder 811 arranged, cylinder stretches out；When the 1st row electromagnetic valve 510 in 2 single-row row electromagnetic valves electric, single file 3 row electromagnetic valves in the 1st row electromagnetic valve 601 dead electricity, or the 1st row electromagnetic valve 601 worked as in 3 row electromagnetic valves of the 1st row electromagnetic valve 510 dead electricity in 2 single-row row electromagnetic valves, single file obtains electric, or work as the 1st row electromagnetic valve 601 dead electricity in 3 row electromagnetic valves of the 1st row electromagnetic valve 510 dead electricity in 2 single-row row electromagnetic valves, single file, cylinder is all retracted.
In like manner, when electromagnetic valve 510, electromagnetic valve 602 all electric time, pneumatic operated valve 712 by between pressure gas source 4 and cylinder 812 gas circuit turn on, the piston rod of cylinder 812 stretches out；When electromagnetic valve 510 obtains electric, electromagnetic valve 602 dead electricity, or when electromagnetic valve 510 dead electricity, electromagnetic valve 602 obtain electric, or when electromagnetic valve 510 dead electricity, electromagnetic valve 602 dead electricity, the piston rod of cylinder 812 is all retracted.
In like manner, when electromagnetic valve 510, electromagnetic valve 603 all electric time, pneumatic operated valve 713 by between pressure gas source 4 and cylinder 813 gas circuit turn on, the piston rod of cylinder 813 stretches out；When electromagnetic valve 510 obtains electric, electromagnetic valve 603 dead electricity, or when electromagnetic valve 510 dead electricity, electromagnetic valve 603 obtain electric, or when electromagnetic valve 510 dead electricity, electromagnetic valve 603 dead electricity, the piston rod of cylinder 813 is all retracted.
In like manner, when electromagnetic valve 520, electromagnetic valve 601 all electric time, pneumatic operated valve 721 by between pressure gas source 4 and cylinder 821 gas circuit turn on, the piston rod of cylinder 821 stretches out；When electromagnetic valve 520 obtains electric, electromagnetic valve 601 dead electricity, or when electromagnetic valve 520 dead electricity, electromagnetic valve 601 obtain electric, or when electromagnetic valve 520 dead electricity, electromagnetic valve 601 dead electricity, the piston rod of cylinder 821 is all retracted.
In like manner, when electromagnetic valve 520, electromagnetic valve 602 all electric time, pneumatic operated valve 722 by between pressure gas source 4 and cylinder 822 gas circuit turn on, the piston rod of cylinder 822 stretches out；When electromagnetic valve 520 obtains electric, electromagnetic valve 602 dead electricity, or when electromagnetic valve 520 dead electricity, electromagnetic valve 602 obtain electric, or when electromagnetic valve 520 dead electricity, electromagnetic valve 602 dead electricity, the piston rod of cylinder 822 is all retracted.
In like manner, when electromagnetic valve 520, electromagnetic valve 603 all electric time, pneumatic operated valve 723 by between pressure gas source 4 and cylinder 823 gas circuit turn on, the piston rod of cylinder 823 stretches out；When electromagnetic valve 520 obtains electric, electromagnetic valve 603 dead electricity, or when electromagnetic valve 520 dead electricity, electromagnetic valve 603 obtain electric, or when electromagnetic valve 520 dead electricity, electromagnetic valve 603 dead electricity, the piston rod of cylinder 823 is all retracted.
In this embodiment, by increasing pneumatic operated valve in the gas circuit between pressure gas source 4 and each cylinder, and pneumatic operated valve is carried out 2 × 3 ranks combinations, controlled pneumatic operated valve by 3 row electromagnetic valves of 2 single-row row electromagnetic valves and single file gas circuit is turned on and off, cleverly the one_to_one corresponding control mode of electromagnetic valve in prior art and cylinder is converted into electromagnetic valve and pneumatic operated valve co-controlling cylinder.When number of cylinders is 2 × 3=6, the electromagnetic valve quantity used is only 2 × 3=6 in 2+3=5, hinge structure, decreases 1 electromagnetic valve and electronic control module thereof.
For making accompanying drawing can clearly express the thought of this patent, in the air cylinder group 8 in this embodiment, cylinder is only 6, and in actual application, number of cylinders often reaches up to a hundred, and electromagnetic valve and the quantity of electronic control module thereof in the present invention will be far less than prior aries.Such as when number of cylinders is 30 × 10, present invention only requires electromagnetic valve and electronic control module is 30+10=40, and prior art is 30 × 10=300.Therefore, hinge structure, the automation control system for fingerboard of the present invention, cost is lower, debugging, maintenance work the most simpler.
It is above one of embodiments of the present invention, for those skilled in the art, does not spend performing creative labour, multiple change can be done on the basis of above-described embodiment, be capable of the purpose of the present invention equally.But, this change obviously should be in the protection domain of claims of the present invention.
Claims (6)
1. for the automation control system of fingerboard, including pressure gas source, electromagnetic valve group, air cylinder group, it is characterised in that: also include pneumatic operated valve group (7)；Cylinder in above-mentioned air cylinder group (8), the pneumatic operated valve in pneumatic operated valve group (7) all present the ranks combination of N × M, and single-row N row electromagnetic valve (5), M row electromagnetic valve (6) of single file that above-mentioned electromagnetic valve group is parallel on pressure gas source by import (P) form；The pneumatic operated valve (711 of the line n in the outlet (A) of the line n electromagnetic valve (510) in above-mentioned single-row N row electromagnetic valve (5) and above-mentioned pneumatic operated valve group (7), 712, 713) control mouth (C) is connected, the pneumatic operated valve (711 that the outlet (A) of m row electromagnetic valve (601) in M row electromagnetic valve (6) of above-mentioned single file arranges with the m in above-mentioned pneumatic operated valve group (8), 721) import (P) is connected, line n in above-mentioned pneumatic operated valve group, line n in the outlet (A) of the pneumatic operated valve (711) of m row and air cylinder group, the rodless cavity of the cylinder (811) of m row is connected；
Wherein, N represents total line number, and n represents concrete line number, n=1 ... N；M represents total columns, and m represents concrete columns, n=1 ... M；
Pneumatic operated valve in above-mentioned pneumatic operated valve group (7) is two-position three way, normal off pneumatic operated valve；Electromagnetic valve in above-mentioned electromagnetic valve group (5,6) is bi-bit bi-pass, normally closed, direct acting, gas electromagnetic valve.
Automation control system for fingerboard the most according to claim 1, it is characterised in that: the middle cylinder of above-mentioned air cylinder group (8) is provided with back-moving spring at rod chamber.
Automation control system for fingerboard the most according to claim 2, it is characterised in that: above-mentioned pressure gas source includes air filter (401), air relief valve (402) and Pressure gauge (403).
4. for the automation control system of fingerboard, including pressure liquid source, electromagnetic valve group, fluid cylinder group, it is characterised in that: also include hydraulic operated valve group；Fluid cylinder in above-mentioned fluid cylinder group, the hydraulic operated valve in hydraulic operated valve group all present the ranks combination of NXM, and the above-mentioned electromagnetic valve group single-row N row electromagnetic valve by inlet parallel to pressure liquid source, the M row electromagnetic valve of single file form；The outlet of the line n electromagnetic valve in above-mentioned single-row N row electromagnetic valve is connected with the control mouth of the hydraulic operated valve of the line n in above-mentioned hydraulic operated valve group, the inlet of the hydraulic operated valve that the outlet of the m row electromagnetic valve in the M row electromagnetic valve of above-mentioned single file arranges with the m in above-mentioned hydraulic operated valve group is connected, and in above-mentioned hydraulic operated valve group, the leakage fluid dram of the hydraulic operated valve of line n, m row is connected with the rodless cavity of the line n in fluid cylinder group, the fluid cylinder of m row；
Wherein, N represents total line number, and n represents concrete line number, n=1 ... N；M represents total columns, and m represents concrete columns, n=1 ... M；
Hydraulic operated valve in above-mentioned hydraulic operated valve group is two-position three way, normal off hydraulic operated valve；Electromagnetic valve in above-mentioned electromagnetic valve group is bi-bit bi-pass, normally closed, direct acting, liquid electromagnetic valve.
Automation control system for fingerboard the most according to claim 4, it is characterised in that: the fluid cylinder in above-mentioned fluid cylinder group is provided with back-moving spring at rod chamber.
Automation control system for fingerboard the most according to claim 5, it is characterised in that: above-mentioned pressure liquid source includes liquid filter, air relief valve and Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310444521.1A CN103470244B (en) | 2013-09-27 | 2013-09-27 | Automation control system for fingerboard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310444521.1A CN103470244B (en) | 2013-09-27 | 2013-09-27 | Automation control system for fingerboard |
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| CN103470244A CN103470244A (en) | 2013-12-25 |
| CN103470244B true CN103470244B (en) | 2016-08-03 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3768663A (en) * | 1971-10-13 | 1973-10-30 | Byron Jackson Inc | Control for well pipe racks and the like |
| US3799364A (en) * | 1973-01-05 | 1974-03-26 | Borg Warner | Automatic racker board finger pivot system |
| CN1594828A (en) * | 2004-06-25 | 2005-03-16 | 塔里木石油勘探开发指挥部 | Control device for kill job |
| EP2273061A2 (en) * | 2000-11-04 | 2011-01-12 | Weatherford Lamb, Inc. | Method and apparatus for gripping tubulars |
| CN102213201A (en) * | 2011-05-27 | 2011-10-12 | 秦月明 | High-efficiency concrete or coal slurry conveying system, control method thereof, and two-position three-way hydraulically-controlled directional control valve applied to high-efficiency concrete or coal slurry conveying system |
| CN203515546U (en) * | 2013-09-27 | 2014-04-02 | 四川宏华石油设备有限公司 | Automatic control system used for fingerboard |
-
2013
- 2013-09-27 CN CN201310444521.1A patent/CN103470244B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3768663A (en) * | 1971-10-13 | 1973-10-30 | Byron Jackson Inc | Control for well pipe racks and the like |
| US3799364A (en) * | 1973-01-05 | 1974-03-26 | Borg Warner | Automatic racker board finger pivot system |
| EP2273061A2 (en) * | 2000-11-04 | 2011-01-12 | Weatherford Lamb, Inc. | Method and apparatus for gripping tubulars |
| CN1594828A (en) * | 2004-06-25 | 2005-03-16 | 塔里木石油勘探开发指挥部 | Control device for kill job |
| CN102213201A (en) * | 2011-05-27 | 2011-10-12 | 秦月明 | High-efficiency concrete or coal slurry conveying system, control method thereof, and two-position three-way hydraulically-controlled directional control valve applied to high-efficiency concrete or coal slurry conveying system |
| CN203515546U (en) * | 2013-09-27 | 2014-04-02 | 四川宏华石油设备有限公司 | Automatic control system used for fingerboard |
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