CN103470244A - Automated control system used for finger board - Google Patents
Automated control system used for finger board Download PDFInfo
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- CN103470244A CN103470244A CN2013104445211A CN201310444521A CN103470244A CN 103470244 A CN103470244 A CN 103470244A CN 2013104445211 A CN2013104445211 A CN 2013104445211A CN 201310444521 A CN201310444521 A CN 201310444521A CN 103470244 A CN103470244 A CN 103470244A
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Abstract
The invention discloses an automated control system used for a finger board. A pneumatic valve is additionally arranged on an air course between a pressure air source and each cylinder; the pneumatic valve is subjected to N*M line and row combination; the pneumatic valve is controlled by N lines of single row solenoid valves and M rows of single line solenoid valves to conduct and close the air course; the one-to-one corresponding control mode of the solenoid valves and the cylinder in the prior art is artfully changed into that the solenoid valves and the pneumatic valve jointly control the cylinder; when the nth line of solenoid valve in the N lines of single row solenoid valves and the mth row of solenoid valve in the M rows of single row solenoid valves are completely electrified, the nth line of mth row of solenoid valves in the pneumatic valve group conducts the air course between the nth of mth row of cylinders and a pressure air source; and when the cylinder amount is N*M, the amount of the adopted solenoid valves is only N+M which is greatly reduced if being compared with N*M in the prior art. The automated control system has the advantages of lower cost and simpleness in the debugging and maintaining work.
Description
Technical field
The present invention relates to the automation control system for fingerboard, belong to the petroleum drilling and mining technical field.
Background technology
Fingerboard is arranged on the quadruple board platform of oil-well rig, and similar people's finger is realized the switch of the comb passage of the drilling tools such as drilling rod, drill collar and sleeve pipe to the upset of clamp by cylinder.Drilling tool after fingerboard is put, even run into the bad weather situations such as strong wind, also can be safely, be stabilized in and be erected at quadruple board platform.
Existing fingerboard has the branched cylinder that is the arrangement of number row multiple row, and every cylinder is by independent solenoid control.In embodiment as shown in Figure 1, should, for the automation control system of fingerboard, mainly by pressure gas source 1, electromagnetic valve group 2, air cylinder group 3, be formed.Wherein, pressure gas source 1 comprises the source of the gas three linked piece that air filter 101, reducing valve 102 and pressure meter 103 form, be used for respectively to pressure air filtered, pressure regulation, demonstration.Wherein, air cylinder group 3 is amounted to 6 cylinders 301,302,303,304,305,306 and is formed by 2 row, 3 row.Wherein, electromagnetic valve group 2 forms electromagnetism valve island by 6 two-position four-ways, normally closed, direct-acting electromagnetic valve 201,202,203,204,205,206,6 electromagnetic valves are arranged on a base plate, by base plate through import P central gas supply, through outlet T, concentrate exhaust, port B is sealed all the time, and the rodless cavity of an above-mentioned cylinder of the outlet A of each electromagnetic valve and correspondence is connected: electromagnetic valve 201 is communicated with cylinders 301; Electromagnetic valve 202 is communicated with cylinder 302; Electromagnetic valve 203 is communicated with cylinder 303; Electromagnetic valve 204 is communicated with cylinder 304; Electromagnetic valve 205 is communicated with cylinder 305; Electromagnetic valve 206 is communicated with cylinder 306.
When electromagnetic valve 201 electric, its outlet A is communicated with import P, from pressure gas source 1, pressure air out enters the rodless cavity of cylinder 301 after electromagnetic valve 201, the piston rod of cylinder 301 stretches out.When electromagnetic valve 201 dead electricity, its import P is communicated with port B, and pressure air is sealed, and outlet A communicates through outlet T and atmosphere, and the piston rod of cylinder 301 is retracted.In like manner, electromagnetic valve 202 electric/during dead electricity, the piston rod of cylinder 302 stretches out/retracts; Electromagnetic valve 203 electric/during dead electricity, the piston rod of cylinder 303 stretches out/retracts; Electromagnetic valve 204 electric/during dead electricity, the piston rod of cylinder 304 stretches out/retracts; Electromagnetic valve 205 electric/during dead electricity, the piston rod of cylinder 305 stretches out/retracts; Electromagnetic valve 206 electric/during dead electricity, 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 is also more and more, and as 7000m bores when dark, the cylinder in fingerboard will be over 300.In the automation control system of above-mentioned existing fingerboard, owing to adopting electromagnetic valve and cylinder control mode one to one, numerous electromagnetic valves causes cost than the problem such as high, that electronic control module is many, the debugging maintenance workload is large.
Summary of the invention
The invention reside in the automation control system of optimizing for fingerboard, while making fingerboard meet brill deeply to require, control more simple, cost is lower.
For this reason, the invention provides a kind of automation control system for fingerboard, comprise pressure gas source, electromagnetic valve group, air cylinder group, it is characterized in that: also comprise the pneumatic operated valve group; In above-mentioned air cylinder group in cylinder, pneumatic operated valve group pneumatic operated valve all present the ranks combination of N * M, above-mentioned electromagnetic valve group is comprised of to the capable electromagnetic valve of single-row N on pressure gas source, the M row electromagnetic valve of single file inlet parallel; The control mouth of the pneumatic operated valve that the outlet of the capable electromagnetic valve of N in the above-mentioned single-row capable electromagnetic valve of N is capable with the n in above-mentioned pneumatic operated valve group is connected, the outlet of the M row electromagnetic valve in the M row electromagnetic valve of above-mentioned single file is connected with the import of the pneumatic operated valve of the row of the m in above-mentioned pneumatic operated valve group, and the rodless cavity of the outlet of the pneumatic operated valve that in above-mentioned pneumatic operated valve group, n is capable, m is listed as and the cylinder that the n in air cylinder group is capable, m is listed as is connected;
Wherein, N means total line number, and n means concrete line number, n=1 ... N; M means total columns, and m means concrete columns, n=1 ... M.
Automation control system for fingerboard of the present invention, by on the gas circuit between pressure gas source and each cylinder, increasing pneumatic operated valve, and pneumatic operated valve is carried out to N * M ranks combination, by the M row solenoid control pneumatic operated valve of the capable electromagnetic valve of single-row N and single file to the conducting of gas circuit with close, cleverly the corresponding control mode one by one of electromagnetic valve in prior art and cylinder is converted into to electromagnetic valve and pneumatic operated valve co-controlling cylinder: the capable electromagnetic valve of n in the capable electromagnetic valve of single-row N, m row electromagnetic valve in the M row electromagnetic valve of single file all when electric, in the pneumatic operated valve group, n is capable, the pneumatic operated valve of m row, pressure gas source and n is capable, gas circuit conducting between the cylinder of m row, cylinder stretches out, otherwise, that the capable electromagnetic valve of n in the capable electromagnetic valve of single-row N obtains is electric, the m row electromagnetic valve dead electricity in the M row electromagnetic valve of single file, or the m row electromagnetic valve in the M row electromagnetic valve of the capable electromagnetic valve dead electricity of n in the single-row capable electromagnetic valve of N, single file obtains electric, or the m row electromagnetic valve dead electricity in the M row electromagnetic valve of the capable electromagnetic valve dead electricity of n in the single-row capable electromagnetic valve of N, single file, cylinder is all retracted.Therefore, the automation control system for fingerboard of the present invention, when number of cylinders is N * M, the electromagnetic valve quantity adopted is only N+M rather than N * M of the prior art.When number of cylinders reach tens, up to a hundred the 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, its cost is well below electromagnetic valve, and, without the electronic control module of electromagnetic valve, the debugging of automation control system, maintenance work are also simpler.
As a kind of preferred, the automation control system for fingerboard of the present invention 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, straight moving, gas electromagnetic valve.Certainly, pneumatic operated valve also can adopt two-position four-way etc., and only use and control mouth, import, outlet, and by all the other port closeds.In like manner, electromagnetic valve also can adopt two-position three way, two-position four-way etc., only uses import, outlet, and by all the other port closeds.
As a kind of preferred, the automation control system for fingerboard of the present invention is further characterized in that: in above-mentioned cylinder assembly, cylinder is provided with back-moving spring at rod chamber.Like this, can make cylinders retract convenient.
As a kind of preferred, the automation control system for fingerboard of the present invention is further characterized in that: above-mentioned pressure gas source comprises air filter, reducing valve and pressure meter.Like this, be convenient to provide more clean, the suitable pressed gas of pressure.
For making fingerboard provide larger chucking power to drilling tool, and control is more stable, for the automation control system of fingerboard, as further optimization, also can adopt hydraulic control.Therefore, the present invention also provides a kind of automation control system for fingerboard, comprises pressure liquid source, electromagnetic valve group, fluid cylinder group, it is characterized in that: also comprise the hydraulic operated valve group; In above-mentioned fluid cylinder group in fluid cylinder, hydraulic operated valve group hydraulic operated valve all present the ranks combination of N * M, above-mentioned electromagnetic valve group is comprised of to the capable electromagnetic valve of single-row N on pressure liquid source, the M row electromagnetic valve of single file inlet parallel; The control mouth of the hydraulic operated valve that the outlet of the capable electromagnetic valve of N in the above-mentioned single-row capable electromagnetic valve of N is capable with the n in above-mentioned hydraulic operated valve group is connected, the outlet of the M row electromagnetic valve in the M row electromagnetic valve of above-mentioned single file is connected with the inlet of the hydraulic operated valve of the row of the m in above-mentioned hydraulic operated valve group, and the rodless cavity of the leakage fluid dram of the hydraulic operated valve that in above-mentioned hydraulic operated valve group, n is capable, m is listed as and the fluid cylinder that the n in the fluid cylinder group is capable, m is listed as is connected;
Wherein, N means total line number, and n means concrete line number, n=1 ... N; M means total columns, and m means concrete columns, n=1 ... M.
Accordingly, as a kind of preferred, the automation control system for fingerboard of the present invention 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, straight moving, liquid electromagnetic valve.
Accordingly, as a kind of preferred, the automation control system for fingerboard of the present invention is further characterized in that: in above-mentioned fluid cylinder assembly, fluid cylinder is provided with back-moving spring at rod chamber.
Accordingly, as a kind of preferred, the automation control system for fingerboard of the present invention is further characterized in that: above-mentioned pressure liquid source comprises liquid filter, reducing valve and pressure meter.
The accompanying drawing explanation
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schematic diagram had now for the automation control system of fingerboard;
The schematic diagram of the automation control system for fingerboard that Fig. 2 is one embodiment of the invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
In embodiment as shown in Figure 2, should, for the automation control system of fingerboard, mainly by pressure gas source 4, electromagnetic valve group 5 and electromagnetic valve group 6, pneumatic operated valve group 7, air cylinder group 8, be formed.Wherein, pressure gas source 4 comprises the source of the gas three linked piece that air filter 401, reducing valve 402 and pressure meter 403 form, be used for respectively to pressure air filtered, pressure regulation, demonstration.Wherein, air cylinder group 8 is amounted to 6 cylinders 811,812,813,821,822,823 and is formed by 2 row, 3 row; Pneumatic operated valve group 7 amounts 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, as deliberately the order up and down of the first row, the second row to be put upside down in figure), its middle port T sealing; Electromagnetic valve group 5 by import P be parallel to 2 single-row row two-position three ways on pressure gas source 4, normally closed, straight moving, gas forms with electromagnetic valve 510,520 (is that line facilitates, in figure, deliberately the order up and down of the first row, the second row is put upside down), its middle port T sealing; Electromagnetic valve group 6 by import P be parallel to 3 two-position three ways of the single file on pressure gas source 4, normally closed, straight moving, gas forms with electromagnetic valve 601,602,603, its middle port T seals.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 row of the 1st 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 row of the 2nd 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 row of the 3rd in pneumatic operated valve group 7.In pneumatic operated valve group 7, the rodless cavity of the cylinder 811 of the outlet A of the pneumatic operated valve 711 of the 1st row, the 1st row and the 1st row in air cylinder group, the 1st row is connected; In pneumatic operated valve group 7, the rodless cavity of the cylinder 812 of the outlet A of the pneumatic operated valve 712 of the 1st row, the 2nd row and the 1st row in air cylinder group, the 2nd row is connected; In pneumatic operated valve group 7, the rodless cavity of the cylinder 813 of the outlet A of the pneumatic operated valve 713 of the 1st row, the 3rd row and the 1st row in air cylinder group, the 3rd row is connected.
In pneumatic operated valve group 7, the rodless cavity of the cylinder 821 of the outlet A of the pneumatic operated valve 721 of the 2nd row, the 1st row and the 2nd row in air cylinder group, the 1st row is connected; In pneumatic operated valve group 7, the rodless cavity of the cylinder 822 of the outlet A of the pneumatic operated valve 722 of the 2nd row, the 2nd row and the 2nd row in air cylinder group, the 2nd row is connected; In pneumatic operated valve group 7, the rodless cavity of the cylinder 823 of the outlet A of the pneumatic operated valve 723 of the 2nd row, the 3rd row and the 2nd row in air cylinder group, the 3rd row is connected.
The 1st row electromagnetic valve 601 in the 1st row electromagnetic valve 510 in 2 single-row row electromagnetic valves, 3 row electromagnetic valves of single file all when electric, the pneumatic operated valve 711 of the 1st row, the 1st row in the pneumatic operated valve group, by the gas circuit conducting of 811, the cylinder of pressure gas source 4 and the 1st row, the 1st row, cylinder stretches out; The 1st row electromagnetic valve 510 in 2 single-row row electromagnetic valves the 1st row electromagnetic valve 601 dead electricity in 3 row electromagnetic valves of electric, single file, or the 1st row electromagnetic valve 601 in 3 row electromagnetic valves of the 1st row electromagnetic valve 510 dead electricity in the 2 single-row row electromagnetic valves, single file electric, or the 1st row electromagnetic valve 601 dead electricity in 3 row electromagnetic valves of the 1st row electromagnetic valve 510 dead electricity in the 2 single-row row electromagnetic valves, single file, cylinder is all retracted.
In like manner, when electromagnetic valve 510, electromagnetic valve 602 all when electric, pneumatic operated valve 712 is by the gas circuit conducting of 812, pressure gas source 4 and cylinder, the piston rod of cylinder 812 stretches out; When electromagnetic valve 510 electric, electromagnetic valve 602 dead electricity, or when electromagnetic valve 510 dead electricity, electromagnetic valve 602 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 when electric, pneumatic operated valve 713 is by the gas circuit conducting of 813, pressure gas source 4 and cylinder, the piston rod of cylinder 813 stretches out; When electromagnetic valve 510 electric, electromagnetic valve 603 dead electricity, or when electromagnetic valve 510 dead electricity, electromagnetic valve 603 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 when electric, pneumatic operated valve 721 is by the gas circuit conducting of 821, pressure gas source 4 and cylinder, the piston rod of cylinder 821 stretches out; When electromagnetic valve 520 electric, electromagnetic valve 601 dead electricity, or when electromagnetic valve 520 dead electricity, electromagnetic valve 601 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 when electric, pneumatic operated valve 722 is by the gas circuit conducting of 822, pressure gas source 4 and cylinder, the piston rod of cylinder 822 stretches out; When electromagnetic valve 520 electric, electromagnetic valve 602 dead electricity, or when electromagnetic valve 520 dead electricity, electromagnetic valve 602 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 when electric, pneumatic operated valve 723 is by the gas circuit conducting of 823, pressure gas source 4 and cylinder, the piston rod of cylinder 823 stretches out; When electromagnetic valve 520 electric, electromagnetic valve 603 dead electricity, or when electromagnetic valve 520 dead electricity, electromagnetic valve 603 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 on the gas circuit between pressure gas source 4 and each cylinder, increasing pneumatic operated valve, and pneumatic operated valve is carried out to 2 * 3 ranks combinations, to the conducting of gas circuit with close, cleverly the corresponding control mode one by one of electromagnetic valve in prior art and cylinder is converted into to electromagnetic valve and pneumatic operated valve co-controlling cylinder by 3 row solenoid control pneumatic operated valves of 2 single-row row electromagnetic valves and single file.When number of cylinders is 2 * 3=6, the electromagnetic valve quantity adopted is only 2+3=5,2 * 3=6 relatively of the prior art, has reduced 1 electromagnetic valve and electronic control module thereof.
For making accompanying drawing can know the thought of expressing this patent, in the air cylinder group 8 in this embodiment, cylinder is only 6, and, in practical application, number of cylinders often reaches up to a hundred, and the electromagnetic valve in the present invention and the quantity of electronic control module thereof will be far less than prior aries.For example number of cylinders is 30 * 10 o'clock, and it is 30+10=40 that the present invention only needs electromagnetic valve and electronic control module thereof, and prior art is 30 * 10=300.Therefore, relative prior art, the automation control system for fingerboard of the present invention, cost is lower, and debugging, maintenance work are also simpler.
Be more than one of embodiments of the present invention, for those skilled in the art, do not spend performing creative labour, on the basis of above-described embodiment, can do multiple variation, can realize purpose of the present invention equally.But this variation obviously should be in the protection domain of claims of the present invention.
Claims (8)
1. for the automation control system of fingerboard, comprise pressure gas source, electromagnetic valve group, air cylinder group, it is characterized in that: also comprise pneumatic operated valve group (7), in above-mentioned air cylinder group (8) in cylinder, pneumatic operated valve group (7) pneumatic operated valve all present the ranks combination of N * M, above-mentioned electromagnetic valve group by import (P) be parallel to the capable electromagnetic valve of single-row N (5) on pressure gas source, the M row electromagnetic valve (6) of single file forms, the pneumatic operated valve (711 that the outlet (A) of the capable electromagnetic valve of n (510) in the above-mentioned single-row capable electromagnetic valve of N (5) is capable with n in above-mentioned pneumatic operated valve group (7), 712, 713) control mouth (C) is connected, the pneumatic operated valve (711 of the m row in the outlet (A) of the m row electromagnetic valve (601) in the M row electromagnetic valve (6) of above-mentioned single file and above-mentioned pneumatic operated valve group (8), 721) import (P) is connected, in above-mentioned pneumatic operated valve group, n is capable, outlet (A) and the n in air cylinder group of the pneumatic operated valve (711) of m row are capable, the rodless cavity of the cylinder (811) of m row is connected,
Wherein, N means total line number, and n means concrete line number, n=1 ... N; M means total columns, and m means concrete columns, n=1 ... M.
2. the automation control system for fingerboard according to claim 1 is characterized in that: in above-mentioned pneumatic operated valve group (7), pneumatic operated valve is two-position three way, normal off pneumatic operated valve; In above-mentioned electromagnetic valve group (5,6), electromagnetic valve is bi-bit bi-pass, normally closed, straight moving, gas electromagnetic valve.
3. the automation control system for fingerboard according to claim 2 is characterized in that: in above-mentioned cylinder assembly (8), cylinder is provided with back-moving spring at rod chamber.
4. the automation control system for fingerboard according to claim 3, it is characterized in that: above-mentioned pressure gas source comprises air filter (401), reducing valve (402) and pressure meter (403).
5. for the automation control system of fingerboard, comprise pressure liquid source, electromagnetic valve group, fluid cylinder group, it is characterized in that: also comprise the hydraulic operated valve group; In above-mentioned fluid cylinder group in fluid cylinder, hydraulic operated valve group hydraulic operated valve all present the ranks combination of NXM, above-mentioned electromagnetic valve group is comprised of to the capable electromagnetic valve of single-row N on pressure liquid source, the M row electromagnetic valve of single file inlet parallel; The control mouth of the hydraulic operated valve that the outlet of the capable electromagnetic valve of n in the above-mentioned single-row capable electromagnetic valve of N is capable with the n in above-mentioned hydraulic operated valve group is connected, the outlet of the m row electromagnetic valve in the M row electromagnetic valve of above-mentioned single file is connected with the inlet of the hydraulic operated valve of the row of the m in above-mentioned hydraulic operated valve group, and the rodless cavity of the leakage fluid dram of the hydraulic operated valve that in above-mentioned hydraulic operated valve group, n is capable, m is listed as and the fluid cylinder that the n in the fluid cylinder group is capable, m is listed as is connected;
Wherein, N means total line number, and n means concrete line number, n=1 ... N; M means total columns, and m means concrete columns, n=1 ... M.
6. the automation control system for fingerboard according to claim 5, it is 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, straight moving, liquid electromagnetic valve.
7. the automation control system for fingerboard according to claim 6, it is characterized in that: in above-mentioned fluid cylinder assembly, fluid cylinder is provided with back-moving spring at rod chamber.
8. the automation control system for fingerboard according to claim 7, it is characterized in that: above-mentioned pressure liquid source comprises liquid filter, reducing valve and pressure meter.
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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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| 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 true CN103470244A (en) | 2013-12-25 |
| CN103470244B 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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| CN103470244B (en) | 2016-08-03 |
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