CN114754035A - Quick pile lifting electronic control system of static pile press and control method thereof - Google Patents
Quick pile lifting electronic control system of static pile press and control method thereof Download PDFInfo
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- CN114754035A CN114754035A CN202210529255.1A CN202210529255A CN114754035A CN 114754035 A CN114754035 A CN 114754035A CN 202210529255 A CN202210529255 A CN 202210529255A CN 114754035 A CN114754035 A CN 114754035A
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- 230000003068 static effect Effects 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000008929 regeneration Effects 0.000 claims abstract description 15
- 238000011069 regeneration method Methods 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims description 17
- 239000007788 liquid 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
- 230000001172 regenerating effect Effects 0.000 description 1
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- 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
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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 quick pile-lifting electric control 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 ring of the main pressure oil cylinder, 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 a hydraulic control oil drain valve of the main pressure oil cylinder is communicated with a rodless cavity of the main pressure oil cylinder, the inlet end of a hydraulic control oil drain valve of the auxiliary pressure oil cylinder is communicated with a rodless cavity of the auxiliary pressure oil cylinder, the inlet end of a reversing valve is communicated with a rodless cavity of the auxiliary pressure oil cylinder, the inlet end of a 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 inlet end of the main overflow valve is communicated with the rodless cavity of the auxiliary pressure oil cylinder, and the control ports of the hydraulic control oil drain valve of the main pressure oil cylinder, the hydraulic control oil drain valve of the auxiliary pressure oil cylinder and the reversing valve are communicated with the pilot port of the pile lifting reversing valve. The technical scheme has high response speed and operation 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 electric control 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 electric control system.
Background
As shown in fig. 1 and 2, the pile pressing part of the static pile pressing machine generally comprises a pile clamping box 15, a pair of main pressure cylinders 6 and a pair or more pairs of auxiliary pressure cylinders 7, the main pressure cylinders 6 and the auxiliary pressure cylinders 7 are fixed on a cross beam 14 of a machine body, the pile clamping box 15 is fixed with a piston rod ear ring of the main pressure cylinder through a pin shaft, the pile clamping box 15 moves up and down along a guide rail in the stroke of the main pressure cylinder 6, and a pile clamping cylinder 16 is arranged in the pile clamping box 13 around a precast pile 17 and moves in the stroke of the cylinder.
Pile pressing process:
firstly, a pile clamping box 15 clamps a precast pile 17 through a pile clamping oil cylinder 16;
secondly, the pile clamping box 15 is pressed down to the stroke of the oil cylinder from the initial position by the main oil cylinder 6;
thirdly, loosening the pile clamping box 15;
fourthly, the main oil cylinder 6 returns to the initial position (when the oil cylinder returns, oil enters from 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 an oil tank through the oil drain valve);
then repeating the first, second, third and fourth 4 steps;
when the main pressure oil cylinder 6 reaches the set pressure, the auxiliary pressure oil cylinder 7 participates in pile pressing, and the pile pressing step at the moment is as follows:
fifthly, the pile clamping box 15 clamps the precast pile 17 through the pile clamping oil cylinder 16;
sixthly, the main pressure oil cylinder 6 and the auxiliary pressure oil cylinder 7 simultaneously press the pile clamping box 15 from the initial position to the stroke of the oil cylinders;
seventhly, loosening the pile clamping box 15;
eighthly, returning the main pressure oil cylinder 6, and passively returning the auxiliary pressure oil cylinder 7 under the driving of the pile clamping box 15 (when the oil cylinder returns, oil enters a rod cavity of the main pressure oil cylinder, 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 the rod-free 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 6 and the auxiliary pressure oil cylinder 7 to the initial position; and then 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 7 are passively brought back by the main pressure oil cylinder 6, 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 an electric control system for quickly lifting 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 fast pile lifting electric control system of a static pile press comprises a pilot operation valve, a pile lifting pilot pressure switch, a multi-way valve, a main pressure cylinder hydraulic control oil drain valve, a main pressure cylinder anti-expansion cylinder overflow valve, a main pressure cylinder, an auxiliary pressure cylinder anti-expansion cylinder overflow valve, a reversing valve, a regeneration one-way valve, a main overflow valve, an auxiliary pressure cylinder hydraulic control oil drain valve, a pile lifting reversing valve, a machine body cross beam, a pile clamping box, a pile clamping cylinder and a precast pile, wherein the main pressure cylinder and the auxiliary pressure cylinder are fixed on the machine body cross beam, the pile clamping box is fixed with a piston rod earring of the main pressure cylinder through a pin shaft, the pile clamping box moves up and down along a guide rail in the stroke of the main pressure cylinder, and the pile clamping cylinder surrounds the precast pile in the pile clamping box and moves in the stroke of the cylinder; the inlet end of the hydraulic control oil drain valve of the main pressure oil cylinder is communicated with a rodless cavity of the main pressure oil cylinder, the inlet end of the hydraulic control oil drain valve of the auxiliary pressure oil cylinder is communicated with the rodless cavity of the auxiliary pressure oil cylinder, the inlet end of the reversing valve is communicated with the 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 inlet end of the main overflow valve is communicated with the rodless cavity of the auxiliary pressure oil cylinder, and the control ports of the hydraulic control oil drain valve of the main pressure oil cylinder, the hydraulic control oil drain valve of the auxiliary pressure oil cylinder and the reversing valve are communicated with the pilot port of the pile lifting reversing valve.
The control method of the quick pile lifting electronic control system of the static pile press comprises the following steps:
firstly, a pile clamping box clamps a precast pile through a pile clamping oil cylinder;
secondly, controlling a main pressure oil cylinder of the multi-way valve to press down the pile clamping box from the initial position to the stroke of the oil cylinder through a pilot operation valve first combined pressure pile;
step three, loosening the pile clamping box;
fourthly, controlling a main oil cylinder of the multi-way valve to return to an initial position through a first combined lifting pile of the pilot operation valve;
when the oil cylinder returns, oil enters 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 an oil tank through the oil drain valve; 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;
sixthly, simultaneously operating a first joint pressure pile and a second joint auxiliary pressure of the pilot operation valve, and controlling a main pressure oil cylinder and an auxiliary pressure oil cylinder of the multi-way valve to simultaneously press down the pile clamping box from the initial position to the stroke of the oil cylinders;
step seven, loosening the pile clamping box;
step eight, operating a first combined lifting pile of the pilot operation valve, and controlling a main oil cylinder of the multi-way valve to return to an initial position;
when the pilot operation valve is operated to lift the pile, the pilot pressure switch of the pile lifting obtains an electric signal, the reversing valve of the pile lifting is electrified, the reversing valve is switched, the rodless cavity of the auxiliary pressure oil cylinder can be in one-way conduction with the rod cavity through the regeneration one-way valve, and the return oil liquid of the rodless cavity of the auxiliary pressure oil cylinder is supplemented to the rod cavity;
when the pilot operation valve is operated to lift the pile, the pile lifting pilot pressure switch obtains an electric signal, the pile lifting reversing valve is electrified, the hydraulic control oil drain valve of the main pressure oil cylinder and the hydraulic control oil drain valve of the auxiliary pressure oil cylinder are opened, and the oil in the rodless cavity of the main pressure oil cylinder and the auxiliary pressure oil cylinder returns to the oil tank through the oil drain 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 achieved.
After the scheme is adopted, when the main pressure cylinder lifts the pile, the auxiliary pressure cylinder is driven to return 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, and redundant oil flows to the oil tank through the hydraulic control oil discharge valve of the main pressure cylinder and the auxiliary pressure cylinder, so that 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 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 hydraulic control oil drain valve of the main oil cylinder; 5. the main pressure cylinder prevents the overflow valve of the expansion cylinder;
6. a main pressure oil cylinder; 7. an auxiliary pressure oil cylinder; 8. the secondary pressure oil cylinder prevents the overflow valve of the expansion cylinder;
9. a diverter valve; 10. a regenerative check valve; 11. a main overflow valve;
12. a hydraulic control oil drain valve of the auxiliary pressure oil cylinder; 13. pile lifting reversing valves;
14. a fuselage cross beam; 15. pile clamping box; 16. a pile clamping oil cylinder; 17. and (6) prefabricating the pile.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
As shown in fig. 3, the invention provides a fast pile-lifting electronic control 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 cylinder hydraulic control oil drain valve 4, a main pressure cylinder anti-expansion cylinder overflow valve 5, a main pressure cylinder 6, an auxiliary pressure cylinder 7, an auxiliary pressure cylinder anti-expansion cylinder overflow valve 8, a reversing valve 9, a regeneration one-way valve 10, a main overflow valve 11, an auxiliary pressure cylinder hydraulic control oil drain valve 12, a pile-lifting reversing valve 13, a machine body cross beam 14, a pile clamping box 15, a pile clamping cylinder 16 and a precast pile 17, wherein the main pressure cylinder 6 and the auxiliary pressure cylinder 7 are fixed on the machine body cross beam 14, the pile clamping box 15 is fixed with a piston rod earring of the main pressure cylinder 6 through a pin shaft, the pile clamping box 15 moves up and down along a guide rail in the stroke of the main pressure cylinder 6, and the pile clamping cylinder 16 surrounds the precast pile 17 in the pile clamping box 15 and moves in the cylinder stroke; the inlet end of the hydraulic control oil drain valve 4 of the main pressure oil cylinder is communicated with the rodless cavity of the main pressure oil cylinder 6, the inlet end of the hydraulic control oil drain valve 12 of the auxiliary pressure oil cylinder is communicated with the rodless cavity of the auxiliary pressure oil cylinder 7, the inlet end of the reversing valve 9 is communicated with the rodless cavity of the auxiliary pressure oil cylinder 7, the inlet end of the regeneration one-way valve 10 is communicated with the outlet end of the reversing valve 9, and the outlet end of the regeneration one-way valve 10 is communicated with the rod cavity of the auxiliary pressure oil cylinder 7; the inlet end of the main overflow valve 11 is communicated with the rodless cavity of the auxiliary pressure oil cylinder 7, and the control ports of the main pressure oil cylinder hydraulic control oil drain valve 4, the auxiliary pressure oil cylinder hydraulic control oil drain valve 12 and the reversing valve 9 are communicated with the pilot port of the pile lifting reversing valve 13.
The invention also provides a control method of the quick pile lifting electronic control system of the static pile press, which can refer to the following steps:
firstly, a pile clamping box 15 clamps a precast pile 17 through a pile clamping oil cylinder 16;
secondly, controlling a main pressure oil cylinder 6 of the multi-way valve 3 to press down the pile clamping box 15 from the initial position to the stroke of the oil cylinder through a first combined pressure pile of the pilot operation valve 1;
thirdly, loosening the pile clamping box 15;
fourthly, controlling a main oil cylinder 6 of the multi-way valve 3 to return to an initial position through a first combined lifting pile of the pilot operation valve 1;
when the oil cylinder returns, oil is fed into a rod cavity of the main oil cylinder 6, a hydraulic control oil drain valve 4 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 steps I, II, III and IV for 4;
when the main pressure oil cylinder 6 reaches the set pressure, the auxiliary pressure oil cylinder 7 participates in pile pressing, and the pile pressing step at the moment is as follows:
fifthly, clamping the precast pile 17 by the pile clamping box 15 through the pile clamping oil cylinder 16;
sixthly, simultaneously operating the first combined pressure pile and the second combined auxiliary pressure of the pilot operation valve 1, and controlling the main pressure oil cylinder 6 and the auxiliary pressure oil cylinder 7 of the multi-way valve 3 to simultaneously press down the pile clamping box 15 from the initial position to the stroke of the cylinders;
seventhly, loosening the pile clamping box 15;
eighthly, operating the first combined lifting pile of the pilot operation valve 1 and controlling a main oil cylinder 6 of the multi-way valve 3 to return to the initial position;
when the pilot operation valve 1 is operated to lift a pile, the pile lifting pilot pressure switch 2 obtains an electric signal, the pile lifting reversing valve 13 is electrified, the reversing valve 9 is switched, the rodless cavity of the auxiliary pressure oil cylinder can be in one-way conduction with the rod cavity through the regeneration one-way valve 10, and oil return 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 lift a pile, the pile lifting pilot pressure switch 2 obtains an electric signal, the pile lifting reversing valve 13 is electrified, the hydraulic control oil drain valve 4 of the main pressure oil cylinder and the hydraulic control oil drain valve 12 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;
the main pressure oil cylinder 6 returns, and the auxiliary pressure oil cylinder 7 passively returns under the driving of the pile clamping box 15;
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 reached.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (2)
1. The utility model provides a quiet stake machine of pressure's electric control type control system that carries fast which characterized in that: comprises a pilot operation valve (1), a pile lifting pilot pressure switch (2), a multi-way valve (3), a main pressure cylinder hydraulic control oil drain valve (4), a main pressure cylinder anti-expansion cylinder overflow valve (5), a main pressure cylinder (6), an auxiliary pressure cylinder (7), an auxiliary pressure cylinder anti-expansion cylinder overflow valve (8), a reversing valve (9), a regeneration one-way valve (10), a main overflow valve (11), an auxiliary pressure cylinder hydraulic control oil drain valve (12), a pile lifting reversing valve (13), a machine body cross beam (14), a pile clamping box (15), a pile clamping cylinder (16) and a precast pile (17), the pile clamping device comprises a main pressure oil cylinder (6), an auxiliary pressure oil cylinder (7), a pile clamping box (15), a guide rail, a precast pile (17), a pile clamping oil cylinder (16) and a pile pressing oil cylinder (6), wherein the main pressure oil cylinder (6) and the auxiliary pressure oil cylinder (7) are fixed on a cross beam (14) of a machine body, the pile clamping box (15) is fixed with a piston rod lug of the main pressure oil cylinder (6) through a pin shaft, the pile clamping box (15) moves up and down along the stroke of the main pressure oil cylinder (6) along the guide rail, and the precast pile (17) is arranged in the pile clamping box (15) to move in the stroke of the oil cylinder; the inlet end of the hydraulic control oil drain valve (4) of the main pressure oil cylinder is communicated with a rodless cavity of the main pressure oil cylinder (6), the inlet end of the hydraulic control oil drain valve (12) of the auxiliary pressure oil cylinder is communicated with a rodless cavity of the auxiliary pressure oil cylinder (7), the inlet end of the reversing valve (9) is communicated with the rodless cavity of the auxiliary pressure oil cylinder (7), the inlet end of the regeneration one-way valve (10) is communicated with the outlet end of the reversing valve (9), and the outlet end of the regeneration one-way valve (10) is communicated with a rod cavity of the auxiliary pressure oil cylinder (7); the inlet end of the main overflow valve (11) is communicated with the rodless cavity of the auxiliary pressure oil cylinder (7), and the control ports of the hydraulic control oil drain valve (4) of the main pressure oil cylinder, the hydraulic control oil drain valve (12) of the auxiliary pressure oil cylinder and the reversing valve (9) are communicated with the pilot port of the pile lifting reversing valve (13).
2. The control method of the quick pile-lifting electric control system of the static pile press as claimed in claim 1, characterized by comprising the following steps:
firstly, a pile clamping box (15) clamps a precast pile (17) through a pile clamping oil cylinder (16);
secondly, controlling a main pressure oil cylinder (6) of the multi-way valve (3) to press down a pile clamping box (15) from an initial position to an oil cylinder stroke through a pilot operation valve (1) and a first combined pressure pile;
thirdly, loosening the pile clamping box (15);
fourthly, controlling a main oil cylinder (6) of the multi-way valve (3) to return to an initial position through a first combined lifting pile of the pilot operation valve (1);
when the oil cylinder returns, oil enters a rod cavity of the main oil cylinder (6), a hydraulic control oil drain valve (4) of the main oil cylinder is opened, and oil in a rodless cavity of the main oil cylinder returns to an oil tank through the oil drain valve; then repeating the first step to the fourth step;
when the main pressure oil cylinder (6) reaches the set pressure, the auxiliary pressure oil cylinder (7) participates in pile pressing, and the pile pressing step at the moment is as follows:
fifthly, clamping the precast pile (17) by the pile clamping box (15) through a pile clamping oil cylinder (16);
sixthly, simultaneously operating a first joint pressure pile and a second joint auxiliary pressure of the pilot operation valve (1) to control a main pressure oil cylinder (6) and an auxiliary pressure oil cylinder (7) of the multi-way valve (3) to simultaneously press down the pile clamping box (15) from an initial position to an oil cylinder stroke;
seventhly, loosening the pile clamping box (15);
step eight, operating a first combined lifting pile of the pilot operation valve (1) and controlling a main oil cylinder (6) of the multi-way valve (3) to return to an initial position;
when the pilot operation valve (1) is operated to lift a pile, the pilot pressure switch (2) for lifting the pile obtains an electric signal, the reversing valve (13) for lifting the pile is electrified, the reversing valve (9) is switched, the rodless cavity of the auxiliary pressure oil cylinder can be in one-way conduction with the rod cavity through the regeneration one-way valve (10), and oil return 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 lift a pile, the pile lifting pilot pressure switch (2) obtains an electric signal, the pile lifting reversing valve (13) is electrified, the hydraulic control oil drain valve (4) of the main pressure oil cylinder and the hydraulic control oil drain valve (12) 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 an oil tank through the oil drain valves;
the main pressure oil cylinder (6) returns, and the auxiliary pressure oil cylinder (7) returns passively under the driving of the pile clamping box (15);
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 |
|---|---|---|---|
| CN202210529255.1A CN114754035A (en) | 2022-05-16 | 2022-05-16 | Quick pile lifting electronic control system of static pile press and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210529255.1A CN114754035A (en) | 2022-05-16 | 2022-05-16 | Quick pile lifting electronic control system of static pile press and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114754035A true CN114754035A (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210529255.1A Pending CN114754035A (en) | 2022-05-16 | 2022-05-16 | Quick pile lifting electronic control system of static pile press and control method thereof |
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| CN (1) | CN114754035A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588359A (en) * | 2012-02-28 | 2012-07-18 | 上海中联重科桩工机械有限公司 | Hydraulic system, excavator and control method of hydraulic system |
| 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 |
| CN202543930U (en) * | 2012-04-09 | 2012-11-21 | 山河智能装备股份有限公司 | Piling return control system of static piling machine |
| CN203214465U (en) * | 2013-04-03 | 2013-09-25 | 上海宝冶集团有限公司 | Hydraulic system of pile pressing device |
| CN203904997U (en) * | 2014-06-25 | 2014-10-29 | 珠海天力重型工程机械有限公司 | Hydraulic system of static pile press |
| CN204572611U (en) * | 2015-04-16 | 2015-08-19 | 郑州宇通重工有限公司 | A kind of novel swing arm unloading valve |
-
2022
- 2022-05-16 CN CN202210529255.1A patent/CN114754035A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588359A (en) * | 2012-02-28 | 2012-07-18 | 上海中联重科桩工机械有限公司 | Hydraulic system, excavator and control method of hydraulic system |
| 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 |
| CN202543930U (en) * | 2012-04-09 | 2012-11-21 | 山河智能装备股份有限公司 | Piling return control system of static piling machine |
| CN203214465U (en) * | 2013-04-03 | 2013-09-25 | 上海宝冶集团有限公司 | Hydraulic system of pile pressing device |
| CN203904997U (en) * | 2014-06-25 | 2014-10-29 | 珠海天力重型工程机械有限公司 | Hydraulic system of static pile press |
| CN204572611U (en) * | 2015-04-16 | 2015-08-19 | 郑州宇通重工有限公司 | A kind of novel swing arm unloading valve |
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Application publication date: 20220715 |
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