CN105114393A - Compound two-way oil cylinder of hydraulic lifting dam, and using method of compound two-way oil cylinder - Google Patents
Compound two-way oil cylinder of hydraulic lifting dam, and using method of compound two-way oil cylinder Download PDFInfo
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- CN105114393A CN105114393A CN201510447919.XA CN201510447919A CN105114393A CN 105114393 A CN105114393 A CN 105114393A CN 201510447919 A CN201510447919 A CN 201510447919A CN 105114393 A CN105114393 A CN 105114393A
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Abstract
The invention discloses a compound two-way oil cylinder of a hydraulic lifting dam, and a using method of the compound two-way oil cylinder. A first piston rod (2) adopts a hollow structure, so that a second piston rod (5) stretches into a through hole of the first piston rod (2) and can slide in the through hole; one end which is far away from the cylinder bottom of a cylinder (1), of the second piston rod (5), is sealed with the second piston rod (5); the second piston rod (5) is connected with an executing mechanism; an oil way is connected with an oil supply mechanism; the oil way is provided with oil pipes which respectively stretch into a rod chamber (11) and a rodless chamber (12). Through the adoption of the compound two-way oil cylinder, even though the dam is stuck by foreign matters, the damp can be successfully lifted or lowered. The compound two-way oil cylinder is low in manufacturing cost and convenient to process.
Description
Technical field
The invention belongs to hydraulic engineering technical field, particularly relate to combined bidirectional hydraulic lifting dam oil cylinder and using method thereof.
Background technique
Existing hydraulic pressure dam oil cylinder is rely on external force (pressure of water and gate are from gravity) to realize putting dam to fall dam mostly.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem: often because be subject to the impact of foreign material jam and piston rod surface spot, under the effect not having enough hydraulic pressure external force, gate door leaf is under rise (closedown) state, only rely on the gravity of gate self, dam operation falls in very difficult realization, needs the effect by external force just can complete.
Summary of the invention
Even if technical problem to be solved by this invention is to provide a kind of foreign material jam that is subject to and also can puts dam smoothly and fall dam, low cost of manufacture, combined bidirectional hydraulic lifting dam oil cylinder easy to process and using method thereof.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: combined bidirectional hydraulic lifting dam oil cylinder, has:
Cylinder barrel;
Stretch into described cylinder barrel and the first piston bar that can slide in cylinder barrel, wherein, described first piston boom end is installed with the piston sealed with cylinder barrel; Cylinder barrel inner space is divided into rod chamber and rodless cavity by described first piston bar and piston;
Be arranged on cylinder barrel opening end end, make cylinder barrel and first piston bar keep the cylinder cap sealed;
Second piston rod, described first piston bar is hollow-core construction, can slide in the through hole that described second piston rod stretches into first piston bar in described through hole; Described first piston bar is away from the one end at the bottom of cylinder barrel cylinder and the second rod seal; Described second piston rod is connected with actuator;
The oil circuit be connected with oil feeding mechanism, described oil circuit is respectively provided with an oil pipe and passes into rod chamber and rodless cavity.
Described second piston rod one end at the bottom of cylinder barrel cylinder is provided with back-up ring, be provided with the snap ring of spacing described back-up ring in described first piston rod through-hole near the one end at the bottom of cylinder barrel cylinder, in described first piston rod through-hole, be provided with the spacing described back-up ring of step away from the one end at the bottom of cylinder barrel cylinder.
Described second piston rod one end at the bottom of cylinder barrel cylinder is taper, and the conical surface of described snap ring and the second piston rod is suitable.
Described actuator is the dam that hoists, described second piston rod end and the described dam that hoists hinged.
Described rod chamber is provided with overpressure protection valve.
A using method for above-mentioned combined bidirectional hydraulic lifting dam oil cylinder, the second piston rod of combined bidirectional hydraulic lifting dam oil cylinder is connected with dam body, and using method comprises the steps:
1) hydraulic lifting dam gate is under rise (closedown) state, and first piston bar and second piston rod of oil cylinder are all in the state of stretching out;
2) when needs put dam dam falls and time, by oil pipe to rod chamber injection liquid force feed, rodless cavity oil return, produces first piston bar backhaul pulling force, promotes first piston bar and shrinks in cylinder barrel, drives gate to tilt;
3) when gate angle of inclination becomes large gradually, the pressure and the gate that act on the external force-water of oil cylinder increase gradually from gravity, promote the second piston rod and first piston bar slides in cylinder barrel, thus realize gate and fall dam smoothly;
4) when needs rise dam, by oil pipe to rodless cavity injection liquid force feed, rod chamber oil return, promotes first piston bar and the second piston rod stretches out, and promotes gate and hoists.
A technological scheme tool in technique scheme has the following advantages or beneficial effect, arranges hydraulic circuit at rod chamber, by rod chamber oil-feed pressurization, produces piston rod backhaul pulling force, drives gate to decline; Along with the Stepwize Shrink of rod chamber, gate angle of inclination is also strengthened gradually, and pressure (pushing away) power that gate deadweight produces oil cylinder is also increasing, thus realizes gate and fall dam smoothly.
Accompanying drawing explanation
The structural representation of combined bidirectional hydraulic lifting dam oil cylinder of Fig. 1 for providing in the embodiment of the present invention;
Fig. 2 is the side view of Fig. 1;
Mark in above-mentioned figure is: 1, cylinder barrel, and 11, rod chamber, 12, rodless cavity, 2, first piston bar, 21, snap ring, 3, cylinder cap, 4, piston, the 5, second piston rod, 51, back-up ring.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
See Fig. 1 and Fig. 2, combined bidirectional hydraulic lifting dam oil cylinder, has:
Cylinder barrel 1;
Stretch into cylinder barrel 1 and the first piston bar 2 that can slide in cylinder barrel 1, wherein, first piston bar 2 end is installed with the piston 4 sealed with cylinder barrel 1; Cylinder barrel 1 inner space is divided into rod chamber 11 and rodless cavity 12 by first piston bar 2 and piston 4;
Be arranged on cylinder barrel 1 opening end, make cylinder barrel 1 and first piston bar 2 keep the cylinder cap 3 sealed;
Second piston rod 5, first piston bar 2 is hollow-core construction, can slide in the through hole that the second piston rod 5 stretches into first piston bar 2 in through hole; First piston bar 2 seals away from the one end at the bottom of cylinder barrel 1 and the second piston rod 5; Second piston rod 5 is connected with actuator;
The oil circuit be connected with oil feeding mechanism, oil circuit is respectively provided with an oil pipe and passes into rod chamber 11 and rodless cavity 12.
Second piston rod 5 one end at the bottom of cylinder barrel 1 is provided with back-up ring 51, is provided with the snap ring 21 of spacing back-up ring 51 in first piston bar 2 through hole near the one end at the bottom of cylinder barrel 1, is provided with the spacing back-up ring 51 of step in first piston bar 2 through hole away from the one end at the bottom of cylinder barrel 1.
Second piston rod 5 one end at the bottom of cylinder barrel 1 is taper, and the conical surface of snap ring 21 and the second piston rod 5 is suitable.
Actuator is the dam that hoists, and the second piston rod 5 end is hinged with the dam that hoists.
Rod chamber 11 is provided with overpressure protection valve, avoids external force inequality to cause cylinder body to damage.
The flood swelled in volume and in dead electricity situation, under hydraulic pressure External Force Acting, automatically fall dam by manual pressure release, guarantee gate safety.
Gate rise or service mode under, by adding strut supplemental support every root strut by setting up in the single driving of the small cylinder of bar lower end.
Embodiment two
A using method for above-mentioned combined bidirectional hydraulic lifting dam oil cylinder, the second piston rod 5 of combined bidirectional hydraulic lifting dam oil cylinder is connected with dam body, and using method comprises the steps:
1) hydraulic lifting dam gate under rise (closedown) state-gate is in erectility, the first piston bar 2 of oil cylinder and the second piston rod 5 are all in the state of stretching out;
2) when needs put dam dam falls and time, by oil pipe to rod chamber 11 injection liquid force feed, rodless cavity 12 oil return, produces first piston bar 2 backhaul pulling force, promotes first piston bar 2 and shrinks in cylinder barrel 1, drives gate to tilt;
3) when gate angle of inclination (gate and vertical surface angle) becomes large gradually, the pressure and the gate that act on the external force-water of oil cylinder increase gradually from gravity, promote the second piston rod 5 and first piston bar 2 slides in cylinder barrel 1, thus realize gate and fall dam smoothly;
4) when needs rise dam, by oil pipe to rodless cavity 12 injection liquid force feed, rod chamber 11 oil return, promotes first piston bar 2 and the second piston rod 5 stretches out, and promotes gate and hoists.
Adopt two-stage piston rod, wherein the rod chamber 11 of first piston bar 2 arranges hydraulic circuit, and the rod chamber 11 of the second piston rod 5 does not then arrange hydraulic circuit.Namely first piston bar 2 is provided with initiatively return function, and the second piston rod 5 does not arrange initiatively return function, the active return functional realiey of first piston bar 2 gate falls dam, smoothly after gate tilts, just no longer need oil circuit voltage supply initiatively return, outerly try hard to recommend dynamic piston rod return.Both changed and initiatively return function cause dam body to put problem that dam falls in dam be not set, and also solved and hydraulic circuit is all set at all piston rod rod chambers 11 causes the problem that complex structure, processing difficulties, manufacture cost are high.Be highly suitable for the dam that hoists of hydraulic engineering.Low cost of manufacture, uses reliable.
Adopt two-stage cylinder structure, cylinder barrel 1 body length is little simultaneously, and install melt pit depth as shallow, the area that takes up room is little, is convenient to site installation test, is applicable to small space, and installation exercise is convenient.
After adopting above-mentioned scheme, hydraulic circuit is set at rod chamber 11, by rod chamber 11 oil-feed pressurization, produces piston rod backhaul pulling force, drive gate to decline; Along with the Stepwize Shrink of rod chamber 11, gate angle of inclination is also strengthened gradually, and the pressure thrust that gate deadweight produces oil cylinder is also increasing, thus realizes gate and fall dam smoothly.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technological scheme is carried out; or design of the present invention and technological scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (6)
1. combined bidirectional hydraulic lifting dam oil cylinder, is characterized in that having:
Cylinder barrel (1);
Stretch into described cylinder barrel (1) and the first piston bar (2) that can slide in cylinder barrel (1), wherein, described first piston bar (2) end is installed with the piston (4) sealed with cylinder barrel (1); Cylinder barrel (1) inner space is divided into rod chamber (11) and rodless cavity (12) by described first piston bar (2) and piston (4);
Be arranged on cylinder barrel (1) opening end, make cylinder barrel (1) and first piston bar (2) keep the cylinder cap (3) sealed;
Second piston rod (5), described first piston bar (2) is hollow-core construction, can slide in the through hole that described second piston rod (5) stretches into first piston bar (2) in described through hole; Described first piston bar (2) seals away from the one end at the bottom of cylinder barrel (1) cylinder and the second piston rod (5); Described second piston rod (5) is connected with actuator;
The oil circuit be connected with oil feeding mechanism, described oil circuit is respectively provided with an oil pipe and passes into rod chamber (11) and rodless cavity (12).
2. combined bidirectional hydraulic lifting dam as claimed in claim 1 oil cylinder, it is characterized in that, described second piston rod (5) is provided with back-up ring (51) near the one end at the bottom of cylinder barrel (1) cylinder, be provided with the snap ring (21) of spacing described back-up ring (51) in described first piston bar (2) through hole near the one end at the bottom of cylinder barrel (1) cylinder, in described first piston bar (2) through hole, be provided with the spacing described back-up ring (51) of step away from the one end at the bottom of cylinder barrel (1) cylinder.
3. combined bidirectional hydraulic lifting dam as claimed in claim 2 oil cylinder, it is characterized in that, described second piston rod (5) is taper near the one end at the bottom of cylinder barrel (1) cylinder, and described snap ring (21) is suitable with the conical surface of the second piston rod (5).
4. combined bidirectional hydraulic lifting dam as claimed in claim 1 oil cylinder, it is characterized in that, described actuator is the dam that hoists, described second piston rod (5) end and the described dam that hoists hinged.
5. combined bidirectional hydraulic lifting dam as claimed in claim 1 oil cylinder, it is characterized in that, described rod chamber (11) is provided with overpressure protection valve.
6. a using method for the combined bidirectional hydraulic lifting dam oil cylinder as described in as arbitrary in claim 1-5, it is characterized in that, second piston rod (5) of combined bidirectional hydraulic lifting dam oil cylinder is connected with dam body, and using method comprises the steps:
1) hydraulic lifting dam gate is under raised configuration, and first piston bar (2) and second piston rod (5) of oil cylinder are all in the state of stretching out;
2) when needs put dam dam falls and time, by oil pipe to rod chamber (11) injection liquid force feed, rodless cavity (12) oil return, produce first piston bar (2) backhaul pulling force, promote first piston bar (2) to shrink in cylinder barrel (1), drive gate to tilt;
3) when gate angle of inclination becomes large gradually, the pressure and the gate that act on the external force-water of oil cylinder increase gradually from gravity, promote the second piston rod (5) and first piston bar (2) to slide in cylinder barrel (1), thus realize gate and fall dam smoothly;
4) when needs rise dam, by oil pipe to rodless cavity (12) injection liquid force feed, rod chamber (11) oil return, promotes first piston bar (2) and the second piston rod (5) stretches out, and promotes gate and hoists.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510447919.XA CN105114393A (en) | 2015-07-24 | 2015-07-24 | Compound two-way oil cylinder of hydraulic lifting dam, and using method of compound two-way oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510447919.XA CN105114393A (en) | 2015-07-24 | 2015-07-24 | Compound two-way oil cylinder of hydraulic lifting dam, and using method of compound two-way oil cylinder |
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| Publication Number | Publication Date |
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| CN105114393A true CN105114393A (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510447919.XA Pending CN105114393A (en) | 2015-07-24 | 2015-07-24 | Compound two-way oil cylinder of hydraulic lifting dam, and using method of compound two-way oil cylinder |
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| CN (1) | CN105114393A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441506A (en) * | 2019-01-14 | 2019-03-08 | 马振凯 | Flip-over type integrates roofbolt drilling machine and method |
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| US2933070A (en) * | 1958-08-12 | 1960-04-19 | Rheinstahl Siegener Eisenbahnb | Double-acting hydraulic jack |
| US5406880A (en) * | 1992-06-09 | 1995-04-18 | Oildrive Pty. Ltd. | Heavy equipment jack |
| CN2606817Y (en) * | 2003-03-03 | 2004-03-17 | 胡宣哲 | Two-stage hydraulic cylinder |
| CN202118027U (en) * | 2011-05-18 | 2012-01-18 | 四川海搏液压机械有限公司 | Telescopic sleeve cylinder with QT450-10 nodular cast iron retainer rings |
| CN202279649U (en) * | 2011-10-14 | 2012-06-20 | 三一汽车起重机械有限公司 | Perpendicular landing leg and hoist with same |
| CN204039988U (en) * | 2014-08-19 | 2014-12-24 | 衢州市河圣水力自控翻板门有限公司 | Lying type flap gate |
| CN204828127U (en) * | 2015-07-24 | 2015-12-02 | 芜湖市银鸿液压件有限公司 | Two -way hydraulic pressure of combined type plays to rise dam hydro -cylinder |
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2015
- 2015-07-24 CN CN201510447919.XA patent/CN105114393A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2933070A (en) * | 1958-08-12 | 1960-04-19 | Rheinstahl Siegener Eisenbahnb | Double-acting hydraulic jack |
| US5406880A (en) * | 1992-06-09 | 1995-04-18 | Oildrive Pty. Ltd. | Heavy equipment jack |
| CN2606817Y (en) * | 2003-03-03 | 2004-03-17 | 胡宣哲 | Two-stage hydraulic cylinder |
| CN202118027U (en) * | 2011-05-18 | 2012-01-18 | 四川海搏液压机械有限公司 | Telescopic sleeve cylinder with QT450-10 nodular cast iron retainer rings |
| CN202279649U (en) * | 2011-10-14 | 2012-06-20 | 三一汽车起重机械有限公司 | Perpendicular landing leg and hoist with same |
| CN204039988U (en) * | 2014-08-19 | 2014-12-24 | 衢州市河圣水力自控翻板门有限公司 | Lying type flap gate |
| CN204828127U (en) * | 2015-07-24 | 2015-12-02 | 芜湖市银鸿液压件有限公司 | Two -way hydraulic pressure of combined type plays to rise dam hydro -cylinder |
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| Title |
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| 伸缩式液压缸;许贤良 等;《液压缸及其设计》;国防工业出版社;20110831;第34-36页 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441506A (en) * | 2019-01-14 | 2019-03-08 | 马振凯 | Flip-over type integrates roofbolt drilling machine and method |
| CN109441506B (en) * | 2019-01-14 | 2024-05-14 | 中矿智控(北京)矿山设备有限公司 | Inverted integrated roof bolter and method |
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Application publication date: 20151202 |