CN105041745A - Differential control system of double-acting single-stage piston hydraulic cylinder - Google Patents
Differential control system of double-acting single-stage piston hydraulic cylinder Download PDFInfo
- Publication number
- CN105041745A CN105041745A CN201510365906.8A CN201510365906A CN105041745A CN 105041745 A CN105041745 A CN 105041745A CN 201510365906 A CN201510365906 A CN 201510365906A CN 105041745 A CN105041745 A CN 105041745A
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- Prior art keywords
- valve
- hydraulic
- control
- manifold block
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000012530 fluid Substances 0.000 claims description 47
- 239000000945 filler Substances 0.000 claims description 32
- 238000005553 drilling Methods 0.000 abstract 2
- 239000003208 petroleum Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 49
- 239000010720 hydraulic oil Substances 0.000 description 10
- 239000000446 fuel Substances 0.000 description 9
- 239000003129 oil well Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention belongs to the technical field of petroleum drilling machine equipment, and discloses a differential control system of a double-acting single-stage piston hydraulic cylinder. The differential control system consists of an air-control hydraulic single linkage valve, a horizontal type pressure meter, a single linkage air-control proportional handle, a control valve set, and a hydraulic cylinder, wherein the air-control hydraulic single linkage valve is communicated with a hydraulic station by a connecting pipeline; a working port of the single linkage air-control proportional handle is connected with a remote air control port of the air-control hydraulic single linkage valve; the control valve set consists of an oil path block, a vertical type pressure meter, an overflow valve, a two-position three-way hydraulic valve, a shuttle valve, a one-way sequence valve and a double-balance valve; two oil inlets in the oil path block are connected with two working oil ports of the air-control hydraulic single linkage valve respectively; one working oil port in the oil path block is connected with a rodless cavity oil port of the hydraulic cylinder; and the other working oil port in the oil path block is connected with a rod cavity oil port of the hydraulic cylinder. The differential control system is simple, stable and reliable to operate, thereby realizing piston no-load quick movement and piston on-load constant-speed movement of the hydraulic cylinder, and improving the working efficiency of a hydraulic system of a petroleum drilling machine.
Description
Technical field
The invention belongs to oil-well rig equipment technology field, particularly a kind of double-action single stage piston oil hydraulic cylinder Differential Control system.
Background technique
Double-action single stage piston oil hydraulic cylinder is one of important executive component of oil-well rig hydraulic system, the Differential Control system of existing double-action single stage piston oil hydraulic cylinder can only realize hydraulic cylinder piston zero load and stretch out fast, and piston band can not be realized carry uniform motion, along with the upgrading of oil-well rig hydraulic system, also need to carry out transformation and upgrade to the Differential Control system of double-action single stage piston oil hydraulic cylinder, improve the control effects to double-action single stage piston oil hydraulic cylinder, enable double-action single stage piston oil hydraulic cylinder perform more operational order, thus improve the using effect of equipment.
Summary of the invention
Claimant is engaged in the work of oil-well rig equipment Design for many years, for the problems referred to above, designs a kind of double-action single stage piston oil hydraulic cylinder Differential Control system, can realize the unloaded rapid movement of hydraulic cylinder piston and piston band carries uniform motion.
The technological scheme that the present invention takes for its technical problem of solution is, a kind of double-action single stage piston oil hydraulic cylinder Differential Control system, is made up of Pneumatic and hydraulic single-link valve, Horizontal pressure table, simply connected Pneumatic control proportioning handle, control valve group, oil hydraulic cylinder, the filler opening of described Pneumatic and hydraulic single-link valve is communicated with by connecting line with the filler opening of a hydraulic station, the return opening of Pneumatic and hydraulic single-link valve is communicated with by connecting line with the return opening of described hydraulic station, described Horizontal pressure table is arranged on the filler opening of Pneumatic and hydraulic single-link valve and the connecting line of hydraulic station filler opening, and the working hole of described simply connected Pneumatic control proportioning handle is connected with the long-range gas control mouth of Pneumatic and hydraulic single-link valve, described control valve group is by manifold block, vertical pressure table, relief valve, two-bit triplet hydraulic control valve, shuttle valve, one way sequence valve and two equilibrium valve composition, manifold block offers connecting line and some element mounting hole site, element mounting hole site is communicated with the connecting line that manifold block is offered, manifold block is provided with two filler openings and two actuator ports, the filler opening of manifold block is communicated with actuator port by the connecting line that manifold block is offered, described vertical pressure table, relief valve, two-bit triplet hydraulic control valve, shuttle valve, one way sequence valve and two equilibrium valve are sequentially arranged on the respective element mounting hole site of manifold block from the filler opening of manifold block to actuator port, two filler openings on manifold block are connected with two actuator ports of Pneumatic and hydraulic single-link valve respectively, on manifold block, one of them actuator port is connected with oil hydraulic cylinder rodless cavity hydraulic fluid port, on manifold block, another actuator port is connected with oil hydraulic cylinder rod chamber hydraulic fluid port.
Further, described Pneumatic and hydraulic single-link valve is gas control and hand-operated double controlled single-link valve.
The invention has the beneficial effects as follows: simple to operate, reliable and stable, achieve the unloaded rapid movement of hydraulic cylinder piston and piston band carries uniform motion, improve the working efficiency of oil-well rig hydraulic system.
Accompanying drawing explanation
Fig. 1 is fundamental diagram of the present invention.
Embodiment
Referring to Fig. 1, a kind of double-action single stage piston oil hydraulic cylinder Differential Control system, is made up of Pneumatic and hydraulic single-link valve 1, Horizontal pressure table 2, simply connected Pneumatic control proportioning handle 3, control valve group 4, oil hydraulic cylinder 5, the filler opening of described Pneumatic and hydraulic single-link valve 1 is communicated with by connecting line with the filler opening of a hydraulic station 6, the return opening of Pneumatic and hydraulic single-link valve 1 is communicated with by connecting line with the return opening of described hydraulic station 6, described Horizontal pressure table 2 is arranged on the filler opening of Pneumatic and hydraulic single-link valve 1 and the connecting line of hydraulic station 6 filler opening, and the working hole of described simply connected Pneumatic control proportioning handle 3 is connected with the long-range gas control mouth of Pneumatic and hydraulic single-link valve 1, described control valve group 4 is by manifold block 7, vertical pressure table 8, relief valve 9, two-bit triplet hydraulic control valve 10, shuttle valve 11, one way sequence valve 12 and two equilibrium valve 13 form, manifold block 7 offers connecting line and some element mounting hole site, element mounting hole site is communicated with the connecting line that manifold block 7 is offered, manifold block 7 is provided with two filler openings and two actuator ports, the filler opening of manifold block 7 is communicated with actuator port by the connecting line that manifold block 7 is offered, described vertical pressure table 8, relief valve 9, two-bit triplet hydraulic control valve 10, shuttle valve 11, one way sequence valve 12 and two equilibrium valve 13 are sequentially arranged on the respective element mounting hole site of manifold block 7 from the filler opening of manifold block 7 to actuator port, two filler openings on manifold block 7 are connected with two actuator ports of Pneumatic and hydraulic single-link valve 1 respectively, on manifold block 7, one of them actuator port is connected with oil hydraulic cylinder 5 rodless cavity hydraulic fluid port, on manifold block 7, another actuator port is connected with oil hydraulic cylinder 5 rod chamber hydraulic fluid port.
Further, described Pneumatic and hydraulic single-link valve 1 is gas control and hand-operated double controlled single-link valve.
The present invention has following characteristics after adopting technique scheme: Pneumatic and hydraulic single-link valve 1 is gas control and hand-operated double controlled single-link valve, not only can realize long-range gas control but also can carry out manually-operable in this locality.The long-range gas control of Pneumatic and hydraulic single-link valve 1 is realized by simply connected Pneumatic control proportioning handle 3, the working hole K1/K2 of simply connected Pneumatic control proportioning handle 3 is connected with Pneumatic and hydraulic single-link valve 1 long-range gas control mouth KA/KB respectively, simply connected Pneumatic control proportioning handle 3 is arranged in driller house, and driller is carried out telecontrol hydraulic pressure single-link valve 1 by operation simply connected Pneumatic control proportioning handle 3 and then controlled oil hydraulic cylinder 5; Operator also can control oil hydraulic cylinder 5 with regard to the manual handle of near operation Pneumatic and hydraulic single-link valve 1.Horizontal pressure table 2 is arranged in driller house to be convenient to driller and to observe hydraulic working oil pressure in oil hydraulic cylinder.
Control valve group 4 is made up of manifold block 7, vertical pressure table 8, relief valve 9, two-bit triplet hydraulic control valve 10, shuttle valve 11, one way sequence valve 12 and two equilibrium valve 13, vertical pressure table 8, relief valve 9, two-bit triplet hydraulic control valve 10, shuttle valve 11, one way sequence valve 12 and two equilibrium valve 13 are all installed concentratedly on manifold block 7, reduce connecting line, save installing space, on manifold block 7, corrosion has respective identification.Vertical pressure table 8 is convenient to local operator observation oil hydraulic cylinder 5 rodless cavity hydraulic working oil pressure; Manifold block 7 there is two filler opening A and B and two actuator port A1 and B1, on manifold block 7, corrosion has hydraulic fluid port to identify, on manifold block 7, filler opening A/B is connected with Pneumatic and hydraulic single-link valve 1 two actuator port WA/WB respectively, on manifold block 7, actuator port A1 is connected with oil hydraulic cylinder 5 rodless cavity hydraulic fluid port HA, and on manifold block 7, actuator port B1 is connected with oil hydraulic cylinder 5 rod chamber hydraulic fluid port HB; Relief valve 9 is used for setting up oil hydraulic cylinder 5 rodless cavity hydraulic working oil pressure.
Differential Control working principle of the present invention is: operation hydraulic pressure single-link valve, hydraulic pressure single-link valve actuator port (WA or WB) and hydraulic pressure single-link valve oil inlet P U connect, and then connect with hydraulic station filler opening, another actuator port (WA or WB) and hydraulic pressure single-link valve return opening OT connect, and then connect with hydraulic station return opening, hydraulic pressure single-link valve passes through actuator port WA/WB to control valve group manifold block filler opening A/B fuel feeding; The oil-feed of a control valve group manifold block filler opening (A or B), another filler opening (A or B) oil return; Control valve group passes through manifold block actuator port A1/B1 to oil hydraulic cylinder hydraulic fluid port HA/HB fuel feeding, the oil-feed of an oil hydraulic cylinder hydraulic fluid port (HA or HB), another hydraulic fluid port (HA or HB) oil return.
When needing hydraulic cylinder piston rod to stretch out, operation hydraulic pressure single-link valve, by hydraulic pressure single-link valve actuator port WA to control valve group manifold block filler opening A fuel feeding, hydraulic oil passes through the one-way valve of the equilibrium valve be connected with manifold block actuator port A1 to oil hydraulic cylinder rodless cavity hydraulic fluid port HA fuel feeding, the equilibrium valve be connected with manifold block actuator port B1 is opened, equilibrium valve hydraulic fluid port P3 and P4 conducting simultaneously.When oil hydraulic cylinder is unloaded, hydraulic fluid pressure is low, one way sequence valve is not opened, one way sequence valve hydraulic fluid port S1 and S2 not conducting, the hydraulic oil of oil hydraulic cylinder rod chamber hydraulic fluid port HB passes through equilibrium valve hydraulic fluid port P3/P4 and two-bit triplet hydraulic control valve hydraulic fluid port P/U to oil hydraulic cylinder rodless cavity hydraulic fluid port HA repairing, the equilibrium valve be connected with manifold block actuator port A1 is opened simultaneously, equilibrium valve hydraulic fluid port P1 and P2 conducting, hydraulic oil enters oil hydraulic cylinder rodless cavity hydraulic fluid port HA by equilibrium valve, because oil hydraulic cylinder rod chamber lifting surface area is less than rodless cavity lifting surface area, realize piston rod to stretch out fast, increase work efficiency, when oil hydraulic cylinder stand under load, hydraulic fluid pressure is high, one way sequence valve is opened, one way sequence valve hydraulic fluid port S1 and S2 conducting, hydraulic oil by one way sequence valve hydraulic fluid port S1/S2 and shuttle valve to two-bit triplet hydraulic control valve hydraulic control hydraulic fluid port K fuel feeding, two-bit triplet hydraulic control valve is controlled, two-bit triplet hydraulic control valve commutates, two-bit triplet hydraulic control valve hydraulic fluid port P and T conducting, the hydraulic oil of oil hydraulic cylinder rod chamber hydraulic fluid port HB is by equilibrium valve hydraulic fluid port P3/P4 and two-bit triplet hydraulic control valve hydraulic fluid port P/T oil sump tank, the equilibrium valve be connected with manifold block actuator port A1 is not opened, equilibrium valve hydraulic fluid port P1 and P2 not conducting, hydraulic oil passes through with the one-way valve of manifold block actuator port A1 connecting balanced valve to oil hydraulic cylinder rodless cavity hydraulic fluid port HA fuel feeding, piston rod at the uniform velocity stretches out.
When needing hydraulic cylinder piston rod to retract, operation hydraulic pressure single-link valve, by hydraulic pressure single-link valve actuator port WB to control valve group manifold block filler opening B fuel feeding, hydraulic oil by shuttle valve to two-bit triplet hydraulic control valve hydraulic control hydraulic fluid port K fuel feeding, two-bit triplet hydraulic control valve is controlled, two-bit triplet hydraulic control valve commutates, two-bit triplet hydraulic control valve hydraulic fluid port P and T conducting, hydraulic oil passes through the one-way valve of the equilibrium valve be connected with manifold block actuator port B1 to oil hydraulic cylinder rod chamber hydraulic fluid port HB fuel feeding, the equilibrium valve be connected with manifold block actuator port A1 is opened simultaneously, equilibrium valve hydraulic fluid port P1 and P2 conducting, the hydraulic oil of oil hydraulic cylinder rodless cavity hydraulic fluid port HA is by equilibrium valve hydraulic fluid port P1/P2 and hydraulic pressure single-link valve hydraulic fluid port WB/OT oil sump tank.
Hydraulic pressure single-link valve Median Function position " Y " type, meta pressure release, when the inoperation of hydraulic pressure single-link valve, spool is at meta, hydraulic pressure single-link valve two actuator port WA and WB and return opening OT connect, and then connect with hydraulic station return opening, the control oil also oil sump tank of two-bit triplet hydraulic control valve hydraulic control hydraulic fluid port K, now, because hydraulic fluid pressure is very low, two equilibrium valve is not all opened, equilibrium valve hydraulic fluid port P1 and P2 not conducting, equilibrium valve hydraulic fluid port P3 and P4 not conducting, the equal pressurize of hydraulic oil of hydraulic catwork oil hydraulic cylinder rodless cavity hydraulic fluid port HA and rod chamber hydraulic fluid port HB and not oil sump tank.Two equilibrium valve can carry out safety protection to control system, and when avoiding oil hydraulic cylinder stand under load when bursting with rod chamber hydraulic fluid port HB or the hydraulic line that is connected with rodless cavity hydraulic fluid port HA, piston rod stretches out fast or retracts, and security incident occurs.
Claims (2)
1. a double-action single stage piston oil hydraulic cylinder Differential Control system, is characterized in that: it is made up of Pneumatic and hydraulic single-link valve, Horizontal pressure table, simply connected Pneumatic control proportioning handle, control valve group, oil hydraulic cylinder, the filler opening of described Pneumatic and hydraulic single-link valve is communicated with by connecting line with the filler opening of a hydraulic station, the return opening of Pneumatic and hydraulic single-link valve is communicated with by connecting line with the return opening of described hydraulic station, described Horizontal pressure table is arranged on the filler opening of Pneumatic and hydraulic single-link valve and the connecting line of hydraulic station filler opening, and the working hole of described simply connected Pneumatic control proportioning handle is connected with the long-range gas control mouth of Pneumatic and hydraulic single-link valve, described control valve group is by manifold block, vertical pressure table, relief valve, two-bit triplet hydraulic control valve, shuttle valve, one way sequence valve and two equilibrium valve composition, manifold block offers connecting line and some element mounting hole site, element mounting hole site is communicated with the connecting line that manifold block is offered, manifold block is provided with two filler openings and two actuator ports, the filler opening of manifold block is communicated with actuator port by the connecting line that manifold block is offered, described vertical pressure table, relief valve, two-bit triplet hydraulic control valve, shuttle valve, one way sequence valve and two equilibrium valve are sequentially arranged on the respective element mounting hole site of manifold block from the filler opening of manifold block to actuator port, two filler openings on manifold block are connected with two actuator ports of Pneumatic and hydraulic single-link valve respectively, on manifold block, one of them actuator port is connected with oil hydraulic cylinder rodless cavity hydraulic fluid port, on manifold block, another actuator port is connected with oil hydraulic cylinder rod chamber hydraulic fluid port.
2. a kind of oil hydraulic cylinder Differential Control system as claimed in claim 1, is characterized in that: described Pneumatic and hydraulic single-link valve is gas control and hand-operated double controlled single-link valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510365906.8A CN105041745A (en) | 2015-06-29 | 2015-06-29 | Differential control system of double-acting single-stage piston hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510365906.8A CN105041745A (en) | 2015-06-29 | 2015-06-29 | Differential control system of double-acting single-stage piston hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105041745A true CN105041745A (en) | 2015-11-11 |
Family
ID=54448609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510365906.8A Withdrawn CN105041745A (en) | 2015-06-29 | 2015-06-29 | Differential control system of double-acting single-stage piston hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105041745A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109563850A (en) * | 2016-08-17 | 2019-04-02 | 福伊特专利有限公司 | Hydraulic-driven facility |
| CN111442008A (en) * | 2020-04-24 | 2020-07-24 | 徐州徐工随车起重机有限公司 | Differential balance valve for controlling extending arm of high-altitude operation vehicle |
| CN114918726A (en) * | 2022-05-31 | 2022-08-19 | 烟台开发区博森科技发展有限公司 | Bidirectional stepping chip removal device |
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| CN204900369U (en) * | 2015-06-29 | 2015-12-23 | 南阳二机石油装备(集团)有限公司 | Differential control system of two effect single -stage piston pneumatic cylinders |
-
2015
- 2015-06-29 CN CN201510365906.8A patent/CN105041745A/en not_active Withdrawn
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| CN204900369U (en) * | 2015-06-29 | 2015-12-23 | 南阳二机石油装备(集团)有限公司 | Differential control system of two effect single -stage piston pneumatic cylinders |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109563850A (en) * | 2016-08-17 | 2019-04-02 | 福伊特专利有限公司 | Hydraulic-driven facility |
| US10851772B2 (en) | 2016-08-17 | 2020-12-01 | Voith Patent Gmbh | Hydraulic drive |
| CN111442008A (en) * | 2020-04-24 | 2020-07-24 | 徐州徐工随车起重机有限公司 | Differential balance valve for controlling extending arm of high-altitude operation vehicle |
| CN114918726A (en) * | 2022-05-31 | 2022-08-19 | 烟台开发区博森科技发展有限公司 | Bidirectional stepping chip removal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 473000 No. 869 West Zhongzhou Road, Henan, Nanyang Applicant after: RG PETRO-MACHINERY GROUP Co.,Ltd. Applicant after: CHINA PETROLEUM TECHNOLOGY & DEVELOPMENT Corp. Address before: 473000 No. 869 West Zhongzhou Road, Henan, Nanyang Applicant before: RG PETRO-MACHINERY (Group) Co.,Ltd. Applicant before: CHINA PETROLEUM TECHNOLOGY & DEVELOPMENT Corp. |
|
| COR | Change of bibliographic data | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151111 |