CN114776651A - Rapid pile lifting and oil return regeneration system of static pile press and control method thereof - Google Patents
Rapid pile lifting and oil return regeneration system of static pile press and control method thereof Download PDFInfo
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- CN114776651A CN114776651A CN202210529285.2A CN202210529285A CN114776651A CN 114776651 A CN114776651 A CN 114776651A CN 202210529285 A CN202210529285 A CN 202210529285A CN 114776651 A CN114776651 A CN 114776651A
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- 230000008929 regeneration Effects 0.000 title claims abstract description 31
- 238000011069 regeneration method Methods 0.000 title claims abstract description 31
- 230000003068 static effect Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 127
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a rapid pile-lifting oil-return regeneration system of a static pile press and a control method thereof.A main pressure oil cylinder and an auxiliary pressure oil cylinder are fixed on a cross beam of a machine body, a pile clamping box is fixed with a piston rod ear of the main pressure oil cylinder through a pin shaft, the pile clamping box moves up and down along a guide rail in the stroke of the main pressure oil cylinder, and the pile clamping oil cylinder moves in the stroke of the oil cylinder around a precast pile in the pile clamping box; the inlet end of the main pressure hydraulic control overflow valve is communicated with a rodless cavity of the main pressure oil cylinder, the inlet end of the auxiliary pressure hydraulic control overflow valve is communicated with a rodless cavity of the auxiliary pressure oil cylinder, the inlet end of the reversing valve is communicated with a rodless cavity of the auxiliary pressure oil cylinder, the inlet end of the regeneration one-way valve is communicated with the outlet end of the reversing valve, and the outlet end of the regeneration one-way valve is communicated with a rod cavity of the auxiliary pressure oil cylinder. The quick pile lifting oil return regeneration system of the static pile press and the control method thereof have the advantages of high response speed, high running speed and small pressure loss.
Description
Technical Field
The invention relates to control of an actuating element oil cylinder, in particular to a quick pile lifting and oil return regeneration system of a static pile press, which is suitable for the fields of engineering machinery, machine tool equipment, equipment manufacturing, metallurgical mines and the like, and a control method of the quick pile lifting and oil return regeneration system.
Background
As shown in fig. 1 and fig. 2, the pile pressing part of the static pile pressing machine generally comprises a pile clamping box 12, a pair of main pressure cylinders 5, and a pair or more pairs of auxiliary pressure cylinders 6, the main pressure cylinders 5 and the auxiliary pressure cylinders 6 are fixed on a cross beam 11 of the machine body, the pile clamping box 12 is fixed with a piston rod ear of the main pressure cylinder through a pin shaft, the pile clamping box 12 moves up and down along a guide rail in the stroke of the main pressure cylinder 5, and the pile clamping cylinder 13 is arranged in the pile clamping box 12 around a precast pile 14 and moves in the cylinder stroke.
Pile pressing:
firstly, a pile clamping box 12 clamps a precast pile 14 through a pile clamping oil cylinder 13;
secondly, the pile clamping box 12 is pressed down to the oil cylinder stroke from the initial position by the main oil cylinder 5;
thirdly, loosening the pile clamping box 12;
fourthly, the main oil cylinder 5 returns to the initial position (when the oil cylinder returns, oil is fed into a rod cavity of the main oil cylinder, a hydraulic control oil drain valve of the main oil cylinder is opened, and oil in a rodless cavity of the main oil cylinder returns to the oil tank through the oil drain valve);
then repeating the first, second, third and fourth 4 steps;
when the main pressure oil cylinder 5 reaches the set pressure, the auxiliary pressure oil cylinder 6 participates in pile pressing, and the pile pressing step at the moment is as follows:
fifthly, the pile clamping box 12 clamps the precast pile 14 through the pile clamping oil cylinder 13;
sixthly, the main pressure oil cylinder 5 and the auxiliary pressure oil cylinder 6 simultaneously press the pile clamping box 12 from the initial position to the stroke of the oil cylinders;
seventhly, loosening the pile clamping box 12;
eighthly, returning the main pressure oil cylinder 5, and passively returning the auxiliary pressure oil cylinder 6 under the driving of the pile clamping box 12 (when the oil cylinders return, the main pressure oil cylinder has a rod cavity for feeding oil, a hydraulic control oil drain valve of the main pressure oil cylinder and a hydraulic control oil drain valve of the auxiliary pressure oil cylinder are opened, and oil in a rodless cavity of the main pressure oil cylinder and the auxiliary pressure oil cylinder returns to the oil tank through the oil drain valves);
ninthly, returning the main pressure oil cylinder 5 and the auxiliary pressure oil cylinder 6 to the initial positions; and repeating the five, six, seven, eight and nine 5 steps until the preset bearing capacity is reached.
When the oil cylinder returns, pressure oil enters a rod cavity of the main pressure oil cylinder, the main pressure rodless cavity and the auxiliary pressure rodless cavity are communicated with the oil tank by opening a hydraulic control one-way valve of the main pressure oil cylinder and the auxiliary pressure oil cylinder, the rest auxiliary pressure oil cylinders 6 are passively brought back by the main pressure oil cylinder 5, and under the condition that the oil supply flow of a pump is not changed, the pile pressing speed of the pile pressing oil cylinder is not changed, and the return speed of the pile pressing oil cylinder influences the integral operation speed.
Disclosure of Invention
The invention aims to provide a quick pile lifting oil return regeneration system of a static pile press and a control method thereof, which have high response speed and operation speed and small pressure loss.
In order to achieve the above purpose, the solution of the invention is:
a rapid pile lifting and oil return regeneration system of a static pile press comprises a pilot operation valve, a pile lifting pilot pressure switch, a multi-way valve, a main pressure hydraulic control overflow valve, a main pressure oil cylinder, an auxiliary pressure oil cylinder, a reversing valve, a regeneration one-way valve, an auxiliary pressure hydraulic control overflow valve, a pile lifting reversing valve, a machine body cross beam, a pile clamping box, a pile clamping oil cylinder and a precast pile, wherein the main pressure oil cylinder and the auxiliary pressure oil cylinder are fixed on the machine body cross beam; the inlet end of the main pressure hydraulic control overflow valve is communicated with a rodless cavity of the main pressure oil cylinder, the inlet end of the auxiliary pressure hydraulic control overflow valve is communicated with a rodless cavity of the auxiliary pressure oil cylinder, the inlet end of the reversing valve is communicated with a rodless cavity of the auxiliary pressure oil cylinder, the inlet end of the regeneration check valve is communicated with the outlet end of the reversing valve, and the outlet end of the regeneration check valve is communicated with a rod cavity of the auxiliary pressure oil cylinder.
The control method of the quick pile-lifting oil-returning regeneration system of the static pile driver comprises the following steps:
firstly, a pile clamping box clamps a precast pile through a pile clamping oil cylinder;
secondly, operating a second dual-linkage pile of the pilot operation valve, and controlling a main pressure oil cylinder of the multi-way valve to press the pile clamping box from the initial position to the stroke of the oil cylinder;
step three, loosening the pile clamping box;
and step four, operating the second connection pile lifting of the pilot operation valve, enabling the pilot pressure switch of the pile lifting to obtain an electric signal, electrifying the pile lifting reversing valve, switching the reversing valve, conducting the rodless cavity of the auxiliary pressure oil cylinder with the rod cavity in a one-way mode through the regeneration one-way valve, and supplementing return oil liquid in the rodless cavity of the auxiliary pressure oil cylinder to the rod cavity.
When the pilot operation valve is operated to lift a second combined pile, the pile lifting pilot pressure switch obtains an electric signal, the pile lifting reversing valve is electrified, the main pressure hydraulic control overflow valve and the auxiliary pressure hydraulic control overflow valve are opened, and the rodless cavity oil of the main and auxiliary hydraulic cylinders is unloaded to the oil tank through the hydraulic control overflow valves;
controlling a main pressure oil cylinder of the multi-way valve to return to an initial position; then repeating the first step to the fourth step;
when the main pressure oil cylinder reaches the set pressure, the auxiliary pressure oil cylinder participates in pile pressing, and the pile pressing step at the moment is as follows:
step five, the pile clamping box clamps the precast pile through the pile clamping oil cylinder;
step six, simultaneously operating a second linkage pile and a fourth linkage auxiliary pressure of a pilot operation valve, and controlling a multi-way valve, a main pressure oil cylinder and an auxiliary pressure oil cylinder to simultaneously press down a pile clamping box from an initial position to an oil cylinder stroke;
step seven, loosening the pile clamping box;
step eight, operating the second linkage pile of the pilot operation valve to control a main oil cylinder of the multi-way valve to return to an initial position;
and operating the pilot operation valve and the second combined lifting pile, enabling the pile lifting pilot pressure switch to obtain an electric signal, electrifying the pile lifting reversing valve, switching the reversing valve, conducting the rodless cavity of the auxiliary pressure oil cylinder with the rod cavity in a one-way mode through the regeneration one-way valve, and supplementing return oil liquid in the rodless cavity of the auxiliary pressure oil cylinder to the rod cavity.
When the pilot operation valve is operated to lift a second combined pile, the pile lifting pilot pressure switch obtains an electric signal, the pile lifting reversing valve is electrified, the main pressure hydraulic control overflow valve and the auxiliary pressure hydraulic control overflow valve are opened, and the rodless cavity oil of the main and auxiliary hydraulic cylinders is unloaded to the oil tank through the hydraulic control overflow valves;
the main pressure oil cylinder returns, and the auxiliary pressure oil cylinder returns passively under the driving of the pile clamping box;
step nine, returning the main and auxiliary oil cylinders to the initial position; and then repeating the fifth step to the ninth step until the designed bearing capacity is reached.
After the scheme is adopted, when the main pressure cylinder lifts the pile, the auxiliary pressure cylinder is passively brought back by the pile clamping box, the pile lifting pilot pressure switch obtains an electric signal, the return oil of the rodless cavity can be supplemented to the rod cavity through the regeneration one-way valve, the redundant oil is unloaded to the oil return box through the hydraulic control overflow valve, the air suction is reduced, the noise and the pause phenomenon are reduced, the return speed of the auxiliary pressure cylinder is increased, and the integral operation speed of equipment is increased.
Drawings
Fig. 1 is a schematic structural view of a prior static pile press;
fig. 2 is a schematic view of a pile pressing of a prior art static pile pressing machine;
fig. 3 is a hydraulic schematic of the present invention.
Reference numerals:
1. a pilot operated valve; 2. a pile lifting pilot pressure switch; 3. a multi-way valve;
4. a main pressure hydraulically controlled relief valve; 5. a main pressure oil cylinder; 6. an auxiliary pressure oil cylinder;
7. a reversing valve; 8. a regenerative check valve; 9. a secondary pressure hydraulic control overflow valve;
10. pile lifting reversing valves; 11. a fuselage cross beam; 12. pile clamping box;
13. a pile clamping oil cylinder; 14. and (6) prefabricating the pile.
Detailed Description
In order to further explain the technical scheme of the invention, the invention is explained in detail by the specific embodiment.
As shown in fig. 3, the invention provides a rapid pile-lifting oil-return regeneration system of a static pile press, which comprises a pilot operation valve 1, a pile-lifting pilot pressure switch 2, a multi-way valve 3, a main pressure hydraulic control overflow valve 4, a main pressure oil cylinder 5, an auxiliary pressure oil cylinder 6, a reversing valve 7, a regeneration one-way valve 8, an auxiliary pressure hydraulic control overflow valve 9, a pile-lifting reversing valve 10, a machine body cross beam 11, a pile clamping box 12, a pile clamping oil cylinder 13 and a precast pile 14, wherein the main pressure oil cylinder 5 and the auxiliary pressure oil cylinder 6 are fixed on the machine body cross beam 11, the pile clamping box 12 is fixed with a piston rod ear ring of the main pressure oil cylinder 5 through a pin shaft, the pile clamping box 12 moves up and down along a guide rail in the stroke of the main pressure oil cylinder 5, and the pile clamping oil cylinder 13 moves in the cylinder stroke around the precast pile 14 in the pile clamping box 12; the inlet end of the main pressure hydraulic control overflow valve 4 is communicated with a rodless cavity of the main pressure oil cylinder 5, the inlet end of the auxiliary pressure hydraulic control overflow valve 9 is communicated with a rodless cavity of the auxiliary pressure oil cylinder 6, the inlet end of the reversing valve 7 is communicated with the rodless cavity of the auxiliary pressure oil cylinder 6, the inlet end of the regeneration check valve 8 is communicated with the outlet end of the reversing valve 7, and the outlet end of the regeneration check valve 8 is communicated with a rod cavity of the auxiliary pressure oil cylinder 6.
The invention also provides a control method of the quick pile-lifting oil-returning regeneration system of the static pile press, which can refer to the following steps:
firstly, a pile clamping box 12 clamps a precast pile 14 through a pile clamping oil cylinder 13;
secondly, operating a second linkage pile of the pilot operation valve 1, and controlling a main hydraulic oil cylinder 5 of the multi-way valve 3 to press the pile clamping box 11 from the initial position to the stroke of the cylinder;
thirdly, loosening the pile clamping box 11;
and fourthly, operating the pilot operation valve 1 to carry the pile in a second connection mode, enabling the pilot pressure switch 2 to obtain an electric signal, enabling the pile-carrying reversing valve 10 to be electrified, switching the reversing valve 7, enabling the rodless cavity of the auxiliary pressure oil cylinder 6 to be in one-way conduction with the rod cavity through the regeneration one-way valve 8, and supplementing return oil liquid in the rodless cavity of the auxiliary pressure oil cylinder to the rod cavity.
When the pilot operation valve 1 is operated to lift a second pile, the pile lifting pilot pressure switch 2 obtains an electric signal, the pile lifting reversing valve 10 is electrified, the main pressure hydraulic control overflow valve 4 and the auxiliary pressure hydraulic control overflow valve 9 are opened, and the oil in the rodless cavity of the main and auxiliary pressure oil cylinders is unloaded to the oil tank through the hydraulic control overflow valves;
controlling a main pressure oil cylinder 5 of the multi-way valve 3 to return to the initial position; then repeating the steps of one, two, three and four 4;
when the main pressure oil cylinder 5 reaches the set pressure, the auxiliary pressure oil cylinder 6 participates in pile pressing, and the pile pressing step at the moment is as follows:
fifthly, the pile clamping box 12 clamps the precast pile 14 through the pile clamping oil cylinder 13;
sixthly, simultaneously operating a second linkage pile and a fourth linkage auxiliary pressure of the pilot operation valve 1, and controlling the multi-way valve 3, the main pressure oil cylinder 5 and the auxiliary pressure oil cylinder 6 to simultaneously press the pile clamping box 12 down to the stroke of the oil cylinders from the initial position;
seventhly, loosening the pile clamping box 12;
eighthly, operating the second linkage pile of the pilot operation valve 1 to control the main oil cylinder 7 of the multi-way valve 2 to return to the initial position;
the pilot operation valve 1 is operated to carry the pile in the second connection mode, the pilot pressure switch 2 for carrying the pile obtains an electric signal, the reversing valve 10 for carrying the pile is electrified, the reversing valve 7 is switched, the rodless cavity of the auxiliary pressure oil cylinder 6 can be in one-way conduction with the rod cavity through the regeneration one-way valve 8, and oil return liquid in the rodless cavity of the auxiliary pressure oil cylinder is supplemented to the rod cavity.
When the pilot operation valve 1 is operated to lift a second pile, the pile lifting pilot pressure switch 2 obtains an electric signal, the pile lifting reversing valve 10 is electrified, the main pressure hydraulic control overflow valve 4 and the auxiliary pressure hydraulic control overflow valve 9 are opened, and the oil in the rodless cavity of the main and auxiliary pressure oil cylinders is unloaded to the oil tank through the hydraulic control overflow valves;
the main pressure oil cylinder 5 returns, and the auxiliary pressure oil cylinder 6 returns passively under the driving of the pile clamping box 12;
ninthly, returning the main and auxiliary oil cylinders to the initial position; and then repeating the five, six, seven, eight and nine 5 steps until the designed bearing capacity is achieved.
The above embodiments are only for illustrating the technical idea of the present invention, and the technical idea of the present invention is not limited thereto, and any modifications made on the basis of the technical solution according to the technical idea of the present invention fall within the protective scope of the present invention.
Claims (2)
1. The utility model provides a quick pile-lifting oil-returning regeneration system of static pile press, which is characterized in that: the pile lifting pilot operated valve comprises a pilot operated valve (1), a pile lifting pilot pressure switch (2), a multi-way valve (3), a main pressure hydraulic control overflow valve (4), a main pressure cylinder (5), an auxiliary pressure cylinder (6), a reversing valve (7), a regeneration one-way valve (8), an auxiliary pressure hydraulic control overflow valve (9), a pile lifting reversing valve (10), a machine body cross beam (11), a pile clamping box (12), a pile clamping cylinder (13) and a precast pile (14), wherein the main pressure cylinder (5) and the auxiliary pressure cylinder (6) are fixed on the machine body cross beam (11), the pile clamping box (12) is fixed with a piston rod ear ring of the main pressure cylinder (5) through a pin shaft, the pile clamping box (12) moves up and down along a guide rail in the stroke of the main pressure cylinder (5), and the pile clamping cylinder (13) moves in the cylinder stroke around the precast pile (14) in the pile clamping box (12); the inlet end of the main pressure hydraulic control overflow valve (4) is communicated with a rodless cavity of the main pressure oil cylinder (5), the inlet end of the auxiliary pressure hydraulic control overflow valve (9) is communicated with a rodless cavity of the auxiliary pressure oil cylinder (6), the inlet end of the reversing valve (7) is communicated with a rodless cavity of the auxiliary pressure oil cylinder (6), the inlet end of the regeneration one-way valve (8) is communicated with the outlet end of the reversing valve (7), and the outlet end of the regeneration one-way valve (8) is communicated with a rod cavity of the auxiliary pressure oil cylinder (6).
2. The control method of the quick pile-lifting oil-return regeneration system of the static pile press as claimed in claim 1, characterized by comprising the following steps:
firstly, a pile clamping box (12) clamps a precast pile (14) through a pile clamping oil cylinder (13);
step two, operating a second linkage pile of the pilot operation valve (1) and controlling a main pressure oil cylinder (5) of the multi-way valve (3) to press a pile clamping box (11) from an initial position to an oil cylinder stroke;
step three, loosening the pile clamping box (11);
fourthly, operating a second linkage pile lifting of the pilot operation valve (1), obtaining an electric signal by a pile lifting pilot pressure switch (2), electrifying a pile lifting reversing valve (10), switching a reversing valve (7), conducting a rodless cavity of the auxiliary pressure oil cylinder (6) with a rod cavity in a one-way mode through a regeneration one-way valve (8), and supplementing return oil of the rodless cavity of the auxiliary pressure oil cylinder to the rod cavity;
when the pilot operation valve (1) is operated to carry a second combined pile, the pile-lifting pilot pressure switch (2) obtains an electric signal, the pile-lifting reversing valve (10) is electrified, the main pressure hydraulic control overflow valve (4) and the auxiliary pressure hydraulic control overflow valve (9) are opened, and the oil in the rodless cavity of the main and auxiliary pressure oil cylinders is unloaded and returns to the oil tank through the hydraulic control overflow valves;
controlling a main pressure oil cylinder (5) of the multi-way valve (3) to return to an initial position; then repeating the first step to the fourth step;
when the main pressure oil cylinder (5) reaches the set pressure, the auxiliary pressure oil cylinder (6) participates in pile pressing, and the pile pressing step at the moment is as follows:
fifthly, clamping the precast pile (14) by the pile clamping box (12) through the pile clamping oil cylinder (13);
sixthly, simultaneously operating the pilot operation valve (1) for second linkage pile pressing and fourth linkage auxiliary pressing, and controlling the multi-way valve (3), the main pressure oil cylinder (5) and the auxiliary pressure oil cylinder (6) to simultaneously press the pile clamping box (12) from the initial position to the stroke of the oil cylinder;
seventhly, loosening the pile clamping box (12);
step eight, operating a second combined lifting pile of the pilot operation valve (1) and controlling a main oil cylinder (7) of the multi-way valve (2) to return to an initial position;
a pilot operation valve (1) is operated to carry a second combined pile, a pile-lifting pilot pressure switch (2) obtains an electric signal, a pile-lifting reversing valve (10) is electrified, a reversing valve (7) is switched, a rodless cavity of an auxiliary pressure oil cylinder (6) can be communicated with a rod cavity in a one-way mode through a regeneration one-way valve (8), and return oil liquid of the rodless cavity of the auxiliary pressure oil cylinder is supplemented to the rod cavity;
when the pilot operation valve (1) is operated to carry a second combined pile, the pile-lifting pilot pressure switch (2) obtains an electric signal, the pile-lifting reversing valve (10) is electrified, the main pressure hydraulic control overflow valve (4) and the auxiliary pressure hydraulic control overflow valve (9) are opened, and the oil in the rodless cavity of the main and auxiliary pressure oil cylinders is unloaded and returns to the oil tank through the hydraulic control overflow valves;
the main pressure oil cylinder (5) returns, and the auxiliary pressure oil cylinder (6) returns passively under the drive of the pile clamping box (12);
step nine, returning the main and auxiliary oil cylinders to the initial position; and then repeating the fifth step to the ninth step until the designed bearing capacity is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210529285.2A CN114776651A (en) | 2022-05-16 | 2022-05-16 | Rapid pile lifting and oil return regeneration system of static pile press and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210529285.2A CN114776651A (en) | 2022-05-16 | 2022-05-16 | Rapid pile lifting and oil return regeneration system of static pile press and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114776651A true CN114776651A (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210529285.2A Pending CN114776651A (en) | 2022-05-16 | 2022-05-16 | Rapid pile lifting and oil return regeneration system of static pile press and control method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114776651A (en) |
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| CN201221083Y (en) * | 2008-07-09 | 2009-04-15 | 赵黎明 | Final pressure stabilizing apparatus for hydraulic static pile-compressing machine |
| CN102605786A (en) * | 2012-04-09 | 2012-07-25 | 山河智能装备股份有限公司 | Pile pressing-in back stroke control system of static pile pressing-in machine and operation method of pile pressing-in back stroke control system |
| CN110242627A (en) * | 2019-04-30 | 2019-09-17 | 广东省机械研究所 | Filter press quickly propels system |
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| CN114352589A (en) * | 2022-01-29 | 2022-04-15 | 山河智能装备股份有限公司 | Static pile press and multi-stage pile press hydraulic control system thereof |
-
2022
- 2022-05-16 CN CN202210529285.2A patent/CN114776651A/en active Pending
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| CN201221083Y (en) * | 2008-07-09 | 2009-04-15 | 赵黎明 | Final pressure stabilizing apparatus for hydraulic static pile-compressing machine |
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Application publication date: 20220722 |
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