CN204755466U - Two -way hydraulic pressure of combined type plays to rise dam - Google Patents
Two -way hydraulic pressure of combined type plays to rise dam Download PDFInfo
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- CN204755466U CN204755466U CN201520555145.8U CN201520555145U CN204755466U CN 204755466 U CN204755466 U CN 204755466U CN 201520555145 U CN201520555145 U CN 201520555145U CN 204755466 U CN204755466 U CN 204755466U
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Abstract
The utility model discloses a two -way hydraulic pressure of combined type plays to rise dam, through setting up first piston rod into hollow structure, the second piston rod stretches into in the through -hole of first piston rod and can slide in the through -hole, the one end and second piston rod packing of cylinder bobbin base are kept away from to the second piston rod, the third piston rod is similar with the second piston rod, and the third piston rod is connected with the dam body, with the oil circuit that fuel feeding mechanism is connected, the oil circuit respectively is equipped with an oil pipe and has let in pole chamber and nos pole chamber, hinders and also can put the dam smoothly and fall dam, low in manufacturing cost, processing conveniently even receive the debris card.
Description
Technical field
The utility model belongs to hydraulic engineering technical field, particularly relates to combined bidirectional hydraulic lifting dam.
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 utility model, model utility people 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.
Model utility content
Even if technical problem to be solved in the utility model 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 easy to process.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: combined bidirectional hydraulic lifting dam, has:
Hydraulic pressure installation, rotating shaft and dam body, described dam body is fixedly mounted in rotating shaft, and described rotating shaft is installed in rotation on bearing support;
Described hydraulic pressure installation 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, 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;
3rd piston rod, described second piston rod is hollow-core construction, can slide in the through hole that described 3rd piston rod stretches into the second piston rod in described through hole; Described second piston rod is away from the one end at the bottom of cylinder barrel cylinder and the 3rd rod seal; Described 3rd piston rod is connected with dam body;
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 the second back-up ring, be provided with the first snap ring of spacing described second 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 spacing described second back-up ring of step away from the one end at the bottom of cylinder barrel cylinder.
Described 3rd piston rod one end at the bottom of cylinder barrel cylinder is provided with third gear circle, be provided with the second snap ring of spacing described third gear circle in described second piston rod through hole near the one end at the bottom of cylinder barrel cylinder, in described second piston rod through hole, be provided with the spacing described third gear circle 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 first snap ring and the second piston rod is suitable; Described 3rd piston rod one end at the bottom of cylinder barrel cylinder is taper, and the conical surface of described second snap ring and the 3rd piston rod is suitable.
Described rod chamber is provided with overpressure protection valve.
The using method on above-mentioned combined bidirectional hydraulic lifting dam, the 3rd piston rod on combined bidirectional hydraulic lifting dam 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 of oil cylinder, the second piston rod and the 3rd piston rod 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 (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 3rd piston rod, the second piston rod and first piston bar to slide 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, the second piston rod and the 3rd piston rod and 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 on combined bidirectional hydraulic lifting dam of Fig. 1 for providing in the utility model embodiment;
Fig. 2 is the structural representation of the hydraulic pressure installation of Fig. 1;
Fig. 3 is the side view of Fig. 2
Mark in above-mentioned figure is: 1, cylinder barrel, and 11, rod chamber, 12, rodless cavity, 2, first piston bar, the 21, first snap ring, 3, cylinder cap, 4, piston, the 5, second piston rod, the 51, second back-up ring, 52, the second snap ring, 6, the 3rd piston rod, 61, third gear circle, 7, hydraulic station, 8, rotating shaft, 9, dam body.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model mode of execution is described in further detail.
Embodiment one
See Fig. 1, combined bidirectional hydraulic lifting dam, has:
Hydraulic pressure installation, rotating shaft and dam body, dam body is fixedly mounted in rotating shaft, and rotating shaft is installed in rotation on bearing support;
As shown in Figures 2 and 3, hydraulic pressure installation has:
Cylinder barrel;
Stretch into cylinder barrel and the first piston bar that can slide in cylinder barrel, wherein, 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 first piston bar and piston;
Be arranged on cylinder barrel opening end, make cylinder barrel and first piston bar keep the cylinder cap sealed;
Second piston rod, first piston bar is hollow-core construction, can slide in the through hole that the second piston rod stretches into first piston bar in through hole; First piston bar is away from the one end at the bottom of cylinder barrel cylinder and the second rod seal;
3rd piston rod, the second piston rod is hollow-core construction, can slide in the through hole that the 3rd piston rod stretches into the second piston rod in through hole; Second piston rod is away from the one end at the bottom of cylinder barrel cylinder and the 3rd rod seal; 3rd piston rod is connected with dam body;
The oil circuit be connected with oil feeding mechanism, oil circuit is respectively provided with an oil pipe and passes into rod chamber and rodless cavity.
Second piston rod one end at the bottom of cylinder barrel cylinder is provided with the second back-up ring, is provided with the first snap ring of spacing second back-up ring in first piston rod through-hole near the one end at the bottom of cylinder barrel cylinder, is provided with spacing second back-up ring of step in first piston rod through-hole away from the one end at the bottom of cylinder barrel cylinder.
3rd piston rod one end at the bottom of cylinder barrel cylinder is provided with third gear circle, is provided with the second snap ring of spacing third gear circle in the second piston rod through hole near the one end at the bottom of cylinder barrel cylinder, is provided with the spacing third gear circle of step in the second piston rod through hole away from the one end at the bottom of cylinder barrel cylinder.
Second piston rod one end at the bottom of cylinder barrel cylinder is taper, and the conical surface of the first snap ring and the second piston rod is suitable; 3rd piston rod one end at the bottom of cylinder barrel cylinder is taper, and the conical surface of the second snap ring and the 3rd piston rod is suitable.
Rod chamber 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 is by setting up in the single driving of the small cylinder of bar lower end).
Embodiment two
The using method on above-mentioned combined bidirectional hydraulic lifting dam, the 3rd piston rod on combined bidirectional hydraulic lifting dam is connected with dam body, and using method comprises the steps:
1) hydraulic lifting dam gate is under rise (closedown) state, and the first piston bar of oil cylinder, the second piston rod and the 3rd piston rod 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 3rd piston rod, the second piston rod and first piston bar and slide 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, the second piston rod and the 3rd piston rod and stretches out, and promotes gate and hoists.
Adopt three grades of piston rods, wherein the rod chamber of first piston bar arranges hydraulic circuit, and the rod chamber of other piston rods does not then arrange hydraulic circuit.Namely first piston bar is provided with initiatively return function, and other piston rods do not arrange initiatively return function, the active return functional realiey of first piston bar 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 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 three grades of cylinder structures, cylinder barrel 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, by rod chamber oil-feed pressurization, produces piston rod backhaul pulling force, drive 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.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technological scheme is carried out; or design of the present utility model and technological scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (5)
1. combined bidirectional hydraulic lifting dam, is characterized in that, has:
Hydraulic pressure installation, rotating shaft and dam body, described dam body is fixedly mounted in rotating shaft, and described rotating shaft is installed in rotation on bearing support;
Described hydraulic pressure installation 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, 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;
3rd piston rod, described second piston rod is hollow-core construction, can slide in the through hole that described 3rd piston rod stretches into the second piston rod in described through hole; Described second piston rod is away from the one end at the bottom of cylinder barrel cylinder and the 3rd rod seal; Described 3rd piston rod is connected with dam body;
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.
2. combined bidirectional hydraulic lifting dam as claimed in claim 1, it is characterized in that, described second piston rod one end at the bottom of cylinder barrel cylinder is provided with the second back-up ring, be provided with the first snap ring of spacing described second 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 spacing described second back-up ring of step away from the one end at the bottom of cylinder barrel cylinder.
3. combined bidirectional hydraulic lifting dam as claimed in claim 2, it is characterized in that, described 3rd piston rod one end at the bottom of cylinder barrel cylinder is provided with third gear circle, be provided with the second snap ring of spacing described third gear circle in described second piston rod through hole near the one end at the bottom of cylinder barrel cylinder, in described second piston rod through hole, be provided with the spacing described third gear circle of step away from the one end at the bottom of cylinder barrel cylinder.
4. combined bidirectional hydraulic lifting dam as claimed in claim 3, it is characterized in that, described second piston rod one end at the bottom of cylinder barrel cylinder is taper, and the conical surface of described first snap ring and the second piston rod is suitable; Described 3rd piston rod one end at the bottom of cylinder barrel cylinder is taper, and the conical surface of described second snap ring and the 3rd piston rod is suitable.
5. combined bidirectional hydraulic lifting dam as claimed in claim 1, it is characterized in that, described rod chamber is provided with overpressure protection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520555145.8U CN204755466U (en) | 2015-07-24 | 2015-07-24 | Two -way hydraulic pressure of combined type plays to rise dam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520555145.8U CN204755466U (en) | 2015-07-24 | 2015-07-24 | Two -way hydraulic pressure of combined type plays to rise dam |
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| CN204755466U true CN204755466U (en) | 2015-11-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003486A (en) * | 2015-07-24 | 2015-10-28 | 芜湖市银鸿液压件有限公司 | Composite bidirectional hydraulic lifting dam and use method thereof |
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2015
- 2015-07-24 CN CN201520555145.8U patent/CN204755466U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003486A (en) * | 2015-07-24 | 2015-10-28 | 芜湖市银鸿液压件有限公司 | Composite bidirectional hydraulic lifting dam and use method thereof |
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