CN105156045A - Automatic hydraulic tong operating device - Google Patents
Automatic hydraulic tong operating device Download PDFInfo
- Publication number
- CN105156045A CN105156045A CN201510700211.0A CN201510700211A CN105156045A CN 105156045 A CN105156045 A CN 105156045A CN 201510700211 A CN201510700211 A CN 201510700211A CN 105156045 A CN105156045 A CN 105156045A
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- hydraulic tongs
- telescopic arm
- sliding sleeve
- lift platform
- fixed
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Abstract
The invention discloses an automatic hydraulic tong operating device which solves the problems that in the prior art, the labor intensity and the dangerousness are high when an oil pipe is assembled and disassembled. The automatic hydraulic tong operating device comprises a lifting platform which can move vertically and a telescopic arm which is arranged on the lifting platform and can move along with the lifting platform up and down, the telescopic arm horizontally extends out and can do reciprocating motion in the length direction of the telescopic arm, the tail end of the telescopic arm is provided with a hydraulic tong body, and a reversing air cylinder for changing steering of the hydraulic tong body is arranged on the hydraulic tong body. The automatic hydraulic tong operating device is simple in structure and convenient to use, the higher automation degree is achieved when the oil pipe is assembled and disassembled, and the labor intensity and dangerousness of workers are greatly reduced.
Description
Technical field
The present invention relates to petroleum well workover implement technical field, refer in particular to the hydraulic tongs automatic pilot that a kind of structure is simple, easy to use.
Background technology
Workover treatment, refers to a kind of operation of oil drilling and follow-up well maintenance, can use smoothly in order to ensure oil well, and the care and maintenance measure taked.The feature of workover treatment is that engineering difficulty is large, and technical requirements is high, must with large-scale workover rig, and is equipped with the special equipment instrument such as overhaul drilling rod, overhaul rotating disk and just can carries out the work.Workover treatment of the prior art, modal action comprises trip-out and lower brill.Pull out of hole, as the term suggests, exactly by the drilling tool (such as oil pipe) of down-hole from well out; Lower brill, as the term suggests, exactly drilling tool is transferred in well.
In petroleum well workover operation, must be dismantled from joint hoop one by one by the oil pipe connected together with hydraulic tongs, or this is coupled together from joint hoop by two oil pipes separated, traditional shackle mode needs special messenger to operate hydraulic tongs, not only labour intensity is large, and dangerous high.
Summary of the invention
The present invention proposes a kind of hydraulic tongs automatic pilot, to solve in prior art on oil pipe is carried out, shackle time large, the dangerous high problem of labour intensity that exists.
For solving the problems of the technologies described above, technical scheme of the present invention is: hydraulic tongs automatic pilot, comprising:
Lift platform, described lift platform can move in vertical direction;
Telescopic arm, described telescopic arm is arranged on described lift platform and also can moves up and down with described lift platform, described telescopic arm level leans out and can move back and forth along its length, the end of described telescopic arm is provided with hydraulic tongs body, and described hydraulic tongs body is provided with the reversing cylinder turned to for changing it.
Preferably, described hydraulic tongs body is fixed with the fixed handle of vertical state, the end of described telescopic arm is also fixed with the first sliding sleeve, described first sliding sleeve up/down perforation, and described fixed handle is positioned at described first sliding sleeve and suitable with described first sliding sleeve.
Preferably, described hydraulic tongs body is provided with shifting cylinder, described shifting cylinder is hinged with rotation sliding sleeve, and described rotation sliding sleeve is sheathed on the gear level of described hydraulic tongs body.
Preferably, also comprise four columns vertically fixed, the column described in four has all been free to slide the second sliding sleeve, and the corner location of described lift platform is all fixed with the jackscrew for being fixed on by described second sliding sleeve on described column;
The below of described lift platform is provided with the lifting hydraulic cylinder for controlling its lifting.
Preferably, each the second described sliding sleeve is equipped with the jackscrew for itself and described column being fixed.
Preferably, described lift platform is provided with the guide rail that twice parallel with described telescopic arm, and the guide rail described in every root all slides two slide blocks, is provided with the slide plate fixing with it above the slide block described in four;
Described telescopic arm is fixedly connected with described slide plate;
Described slide plate is fixed with leading screw box, be provided with the ball-screw paralleled with described telescopic arm in described leading screw box, described ball-screw is by driven by servomotor.
Preferably, described hydraulic tongs body is also provided with for respond to counterpart detecting sensor that hydraulic tongs breach aligns and for respond to oil pipe to level detection sensor;
The oil-in place of described hydraulic tongs body is provided with pressure meter for induction pressure or pressure transmitter.
The beneficial effect of the present invention after have employed technique scheme is: first this hydraulic tongs automatic pilot utilizes lift platform to control the height of telescopic arm, then the position of the mobile hydraulic control pincers body of telescopic arm self is utilized, and then can regulate according to the physical location of hydraulic tongs body very easily, behind the position of adjusting hydraulic tongs body, reversing cylinder hydraulic control is utilized to clamp rotating and reverse of body, shifting cylinder hydraulic control is utilized just to clamp body, the height of speed reversal, and then complete upper button and the shackle of tubing string, this process automation degree is high, without the need to special messenger's direct control hydraulic tongs, improve the safety factor of workman.
Above, during shackle, the latter half (back-up tong) of hydraulic tongs is that locking is on oil pipe box, during upper button, hydraulic tongs the first half (main pincers) holds oil pipe tightly, along with the carrying out of upper button, hydraulic tongs the first half will move down along with oil pipe, during shackle, hydraulic tongs the first half will move up along with oil pipe, fixed handle now will be corresponding move up and down in the first sliding sleeve, first sliding sleeve can not only play the effect of leading up and down, but also can prevent hydraulic tongs body from swinging, improve its job stability.
Hydraulic tongs body is provided with shifting cylinder, shifting cylinder is hinged with rotation sliding sleeve, rotate sliding sleeve and be sheathed on the gear level of hydraulic tongs body, can switch between high and low shift as required when its work, to finish the work more efficiently.
When lifting hydraulic cylinder control lift platform moves up and down, when lift platform is elevated to certain altitude, with jackscrew, four the second sliding sleeves and column are held out against again, thus lift platform is fixed, this structure can not only ensure the stability of lift platform, and can prevent hydraulic tongs body from the process of upper, shackle, causing the instability of whole system owing to there is violent swing.
When lift platform is adjusted to certain altitude, jackscrew is tightened, together with the second sliding sleeve can being firmly fixed with column.
By driven by servomotor ball screw turns, ball-screw can be utilized to realize moving horizontally of slide plate with coordinating of leading screw box, and then realize the linear reciprocating motion of telescopic arm, guide rail now can provide guiding for the movement of telescopic arm.
Hydraulic tongs body is set to level detection sensor, can sense that oil pipe puts in place, to start to carry out upper, shackle to oil pipe, counterpart detecting sensor is then to conveniently recall hydraulic tongs after upper, shackle complete, and whether the pressure meter being arranged on oil-in place completes to detect upper button.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention will be further described:
Fig. 1 is the structural representation of an embodiment of the present invention; '
Fig. 2 is the schematic top plan view of Fig. 1;
In figure: 1-guide rail; 2-telescopic arm; 3-hydraulic tongs body; 4-reversing cylinder; 5-fixed handle; 6-first sliding sleeve; 7-shifting cylinder; 8-rotates sliding sleeve; 9-gear level; 10-column; 11-second sliding sleeve; 12-lifting hydraulic cylinder; 13-jackscrew; 14-lift platform; 15-slide block; 16-slide plate; 17-leading screw box; 18-ball-screw; 19-servomotor; 20-counterpart detecting sensor; 21-is to level detection sensor; 22-pressure meter; 23-spring; 24-lifting rope.
Detailed description of the invention
Embodiment:
Shown in Fig. 1 and Fig. 2, the hydraulic tongs automatic pilot of this invention comprises lift platform 14, and described lift platform 14 can move in vertical direction; Telescopic arm 2, described telescopic arm 2 is arranged on described lift platform 14 and also can moves up and down with described lift platform 14, described telescopic arm 2 level leans out and can move back and forth along its length, the end of described telescopic arm 2 is provided with hydraulic tongs body 3, described hydraulic tongs body 3 is provided with the reversing cylinder 4 turned to for changing it, described hydraulic tongs body 3 is still by original sus-pension (being suspended in midair by spring 23 and lifting rope 24), and described hydraulic tongs body 3 is arranged at the end of described telescopic arm 2.
Above the gear level 9 of hydraulic tongs body 3, a cylinder-shifting cylinder 7 is installed, for realizing gearshift flexibly, devise a rotation sliding sleeve 8 and shifting cylinder 7 and gear level 9 are connected to one piece, rotate sliding sleeve 8 and adopt chain connection with shifting cylinder 7, and be enclosed within gear level 9.For the change of hydraulic tongs body 3 direction of rotation, original hydraulic tongs basis adds a serial cylinders (i.e. reversing cylinder 4), so just easily can realize the change of hydraulic tongs body 3 direction of rotation.
About lift platform 14, its Main Function is used to the height adapting to hydraulic tongs body 3, and the height of lift platform 14 is by lifting hydraulic cylinder 12 control realization below it.Jackscrew 13 is all fixed with at four arms of angle of lift platform 14, on four root posts 10, be equipped with second sliding sleeve 11 that can freely up and down slide simultaneously, when lift platform 14 is elevated to certain altitude, jackscrew 13 is utilized to be held out against with column 10 by four the second sliding sleeves 11, thus lift platform 14 is fixed, such effect one is the stability that can ensure to be elevated, and two is the instability that can prevent hydraulic tongs body 3 from causing whole system owing to there is violent swing in the process of upper, shackle.In addition, hydraulic tongs body 3 is fixed with the fixed handle 5 of vertical state, the end of described telescopic arm 2 is also fixed with the first sliding sleeve 6, described first sliding sleeve 6 up/down perforation, described fixed handle 5 is positioned at described first sliding sleeve 6 and suitable with described first sliding sleeve 6, effect both this is: on, during shackle, the latter half (back-up tong) of hydraulic tongs body 3 is that locking is on oil pipe box, during upper button, hydraulic tongs the first half (main pincers) holds oil pipe tightly, along with the carrying out of upper button, hydraulic tongs the first half will move down along with oil pipe, during shackle, hydraulic tongs the first half will move up along with oil pipe, the effect of the first sliding sleeve 6 has now been upper and lower guide effect, also be the effect preventing hydraulic tongs from swinging, and on hydraulic tongs, because moving up and down of the top of hydraulic tongs body 3 can cause producing upper and lower active force to telescopic arm 2 during shackle, and then eliminate the consequent active force up and down to whole jacking system.
Described lift platform 14 is provided with the guide rail 1 that twice parallel with described telescopic arm 2, the guide rail 1 described in every root all slides have above the slide block 15 described in two slide blocks 15, four to be provided with the slide plate 16 fixing with it; Described telescopic arm 2 is fixedly connected with described slide plate 16; Described slide plate 16 is fixed with leading screw box 17, and be provided with the ball-screw 18 paralleled with described telescopic arm 2 in described leading screw box 17, described ball-screw 18 is driven by servomotor 19.By driven by servomotor ball screw turns, ball-screw can be utilized to realize moving horizontally of slide plate with coordinating of leading screw box, and then realize the linear reciprocating motion of telescopic arm, guide rail now can provide guiding for the movement of telescopic arm.
About judge whether to tighten during upper button or shackle time the problem whether dismantled completely, solution is: install a pressure meter 22 or pressure transmitter at the oil-in of hydraulic tongs body 3, set system authorized pressure value, when on link closely time, pressure meter 22 can detect that pressure becomes large, when reaching setting value, now pressure meter 22 sends signal to PLC, hydraulic tongs body 3 starts breach, when hydraulic tongs breach is completely to timing, counterpart detecting sensor 20 senses signal, and then reversing cylinder 4 is resetted to PLC instruction, state is now that hydraulic tongs body 3 mouthfuls opens, stop the rotation, telescopic arm 2 just can start to retract, wait for the operation entered next time.Judge whether to dismantle completely according to the number of turns during shackle, when starting shackle, hydraulic tongs body 3 starts to rotate, the function of counterpart detecting sensor 20 is now exactly judge whether to dismantle according to the number of times of the signal sensed, for ensureing to dismantle completely, a few circle can be added in program setting, such as, generally unload 10 circles just can dismantle completely, but in order to ensure to be perfectly safe, just start breach to hydraulic tongs body 3 during 13 circle during program setting, then retract, so just achieve, the function of shackle.
The hydraulic tongs automatic pilot groundwork process of this invention is as follows:
When just starting, whole system is initialized, whole system state is now that hydraulic tongs body 3 mouthfuls opens, telescopic arm 2 is retracted completely, on oil pipe is waited for, after shackle, telescopic arm 2 starts to stretch out, when oil pipe enters after within the induction region arriving level detection sensor 21 be arranged on hydraulic tongs body 3, telescopic arm 2 stops flexible, now, reversing cylinder 4 fast reciprocating stretches out and for several times clamps tooth and clamp oil pipe to throw away with retraction, when PLC execute the fast reciprocating sent to reversing cylinder 4 stretch out with the order of retracting for several times after, reversing cylinder 4 starts corresponding stretching out or retract according to upper button or shackle, hydraulic tongs body 3 just starts corresponding forward or reverse, namely upper button or shackle is started.Carry out with low or first gear when upper, shackle starts, when upper or when unloading to a certain extent, shifting cylinder 7 starts to be transferred to by gear on high speed gear, and hydraulic tongs body 3 just starts quick rotation work.During upper button, when tightened, pressure meter 22 pressure increase, sends after signal makes it to stop the rotation to PLC, and reversing cylinder 4 fast reciprocating stretches out and clamps tooth and make it to decontrol oil pipe to throw away with retraction for several times, then starts to retract to breach; During shackle, after completing rotating cycle according to program institute to the number of turns, reversing cylinder 4 fast reciprocating stretches out and clamps tooth and make it to decontrol oil pipe to throw away with retraction for several times, then starts to retract to breach.So, the automatic control of hydraulic tongs operation is just achieved.
The hydraulic tongs automatic pilot structure of this invention is simple, easy to use, on oil pipe is carried out, shackle time there is higher automaticity, greatly reduce labour intensity and the danger of workman.
The present invention is not limited to above-mentioned detailed description of the invention, and all are based on technical conceive of the present invention, and done structural improvement, all falls among protection scope of the present invention.
Claims (6)
1. hydraulic tongs automatic pilot, is characterized in that, comprising:
Lift platform, described lift platform can move in vertical direction;
Telescopic arm, described telescopic arm is arranged on described lift platform and also can moves up and down with described lift platform, described telescopic arm level leans out and can move back and forth along its length, the end of described telescopic arm is provided with hydraulic tongs body, and described hydraulic tongs body is provided with the reversing cylinder turned to for changing it.
2. hydraulic tongs automatic pilot as claimed in claim 1, it is characterized in that: the fixed handle described hydraulic tongs body being fixed with vertical state, the end of described telescopic arm is also fixed with the first sliding sleeve, described first sliding sleeve up/down perforation, described fixed handle is positioned at described first sliding sleeve and suitable with described first sliding sleeve.
3. hydraulic tongs automatic pilot as claimed in claim 2, it is characterized in that: described hydraulic tongs body is provided with shifting cylinder, described shifting cylinder is hinged with rotation sliding sleeve, described rotation sliding sleeve is sheathed on the gear level of described hydraulic tongs body.
4. hydraulic tongs automatic pilot as claimed in claim 1, it is characterized in that: also comprise four columns vertically fixed, column described in four has all been free to slide the second sliding sleeve, and the corner location of described lift platform is all fixed with the jackscrew for being fixed on by described second sliding sleeve on described column;
The below of described lift platform is provided with the lifting hydraulic cylinder for controlling its lifting.
5. hydraulic tongs automatic pilot as claimed in claim 1, it is characterized in that: described lift platform is provided with the guide rail that twice parallel with described telescopic arm, guide rail described in every root all slides and has two slide blocks, above the slide block described in four, be provided with the slide plate fixing with it;
Described telescopic arm is fixedly connected with described slide plate;
Described slide plate is fixed with leading screw box, be provided with the ball-screw paralleled with described telescopic arm in described leading screw box, described ball-screw is by driven by servomotor.
6. hydraulic tongs automatic pilot as claimed in claim 1, is characterized in that: described hydraulic tongs body is also provided with for respond to counterpart detecting sensor that hydraulic tongs breach aligns and for respond to oil pipe to level detection sensor;
The oil-in place of described hydraulic tongs body is provided with pressure meter for induction pressure or pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510700211.0A CN105156045B (en) | 2015-10-22 | 2015-10-22 | Hydraulic tongs automatic pilot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510700211.0A CN105156045B (en) | 2015-10-22 | 2015-10-22 | Hydraulic tongs automatic pilot |
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| CN105156045A true CN105156045A (en) | 2015-12-16 |
| CN105156045B CN105156045B (en) | 2017-12-26 |
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| CN201510700211.0A Active CN105156045B (en) | 2015-10-22 | 2015-10-22 | Hydraulic tongs automatic pilot |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758757A (en) * | 2016-04-13 | 2016-07-13 | 辽宁工程技术大学 | Coal-rock cutting experiment device and method |
| CN106050170A (en) * | 2016-07-05 | 2016-10-26 | 江苏如石机械有限公司 | Drill pipe tong remote notch aligning and positioning device and control method thereof |
| CN108678692A (en) * | 2018-07-24 | 2018-10-19 | 江苏如石机械股份有限公司 | Power tongs is to gap means |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1521851A2 (en) * | 1988-02-15 | 1989-11-15 | Специальное Проектно-Конструкторское Бюро Автоматизации Глубокого Разведочного Бурения | Arrangement for loosening/tightening lock joints of drill string |
| CN102192923A (en) * | 2010-03-17 | 2011-09-21 | 株式会社山武 | Calorific value calculation formula creation system, method of creating calorific value calculation formula, calorific value measurement system, and method of measuring calorific value |
| CN202055780U (en) * | 2011-05-06 | 2011-11-30 | 四川宏华石油设备有限公司 | Power tongs |
| CN103900675A (en) * | 2014-05-12 | 2014-07-02 | 华东交通大学 | Novel lift weighing device detection method based on pliers-type lever mechanism |
| CN203867497U (en) * | 2014-03-26 | 2014-10-08 | 南阳二机石油装备(集团)有限公司 | Rotary bracket of iron roughneck |
| CN104120986A (en) * | 2014-07-23 | 2014-10-29 | 中国石油大学(华东) | Vehicle-mounted full-automatic hydraulic oil tubing tong device |
| CN205117247U (en) * | 2015-10-22 | 2016-03-30 | 北京海格立斯智能装备技术有限公司 | Hydraulic tong automatic operation device |
-
2015
- 2015-10-22 CN CN201510700211.0A patent/CN105156045B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1521851A2 (en) * | 1988-02-15 | 1989-11-15 | Специальное Проектно-Конструкторское Бюро Автоматизации Глубокого Разведочного Бурения | Arrangement for loosening/tightening lock joints of drill string |
| CN102192923A (en) * | 2010-03-17 | 2011-09-21 | 株式会社山武 | Calorific value calculation formula creation system, method of creating calorific value calculation formula, calorific value measurement system, and method of measuring calorific value |
| CN202055780U (en) * | 2011-05-06 | 2011-11-30 | 四川宏华石油设备有限公司 | Power tongs |
| CN203867497U (en) * | 2014-03-26 | 2014-10-08 | 南阳二机石油装备(集团)有限公司 | Rotary bracket of iron roughneck |
| CN103900675A (en) * | 2014-05-12 | 2014-07-02 | 华东交通大学 | Novel lift weighing device detection method based on pliers-type lever mechanism |
| CN104120986A (en) * | 2014-07-23 | 2014-10-29 | 中国石油大学(华东) | Vehicle-mounted full-automatic hydraulic oil tubing tong device |
| CN205117247U (en) * | 2015-10-22 | 2016-03-30 | 北京海格立斯智能装备技术有限公司 | Hydraulic tong automatic operation device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758757A (en) * | 2016-04-13 | 2016-07-13 | 辽宁工程技术大学 | Coal-rock cutting experiment device and method |
| CN105758757B (en) * | 2016-04-13 | 2018-08-31 | 辽宁工程技术大学 | A kind of coal petrography cutting test device and method |
| CN106050170A (en) * | 2016-07-05 | 2016-10-26 | 江苏如石机械有限公司 | Drill pipe tong remote notch aligning and positioning device and control method thereof |
| CN106050170B (en) * | 2016-07-05 | 2018-07-06 | 江苏如石机械股份有限公司 | A kind of rotary tong is remotely to gap positioning device and its control method |
| CN108678692A (en) * | 2018-07-24 | 2018-10-19 | 江苏如石机械股份有限公司 | Power tongs is to gap means |
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| CN105156045B (en) | 2017-12-26 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170821 Address after: 100000 Beijing city Xicheng District Guang'an Sanyi No. 4 hydrological Lou Xuyang outside the hotel room 425 Applicant after: BEIJING HERCULES INTELLIGENT EQUIPMENT TECHNOLOGY CO., LTD. Address before: The Twin Towers District of Zhuozhou City, Hebei province Baoding city Wenchang street 072750 Temple No. 487 Applicant before: Su Hao |
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Inventor after: Wang Jilin Inventor after: Hou Jianfeng Inventor after: Chen Zhong Inventor after: Chen Weixi Inventor after: Li Guoping Inventor after: Fan Guolu Inventor after: Gu Fengkang Inventor after: Feng Pei Inventor after: Yan Dongzhi Inventor after: Jiang Jianfeng Inventor after: Liu Junlin Inventor before: Wang Jilin Inventor before: Chen Weixi Inventor before: Li Guoping Inventor before: Fan Guolu Inventor before: Gu Fengkang Inventor before: Feng Pei |
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