CN105952692A - Hydraulic control system for sequential control of hydraulic pile hammers - Google Patents
Hydraulic control system for sequential control of hydraulic pile hammers Download PDFInfo
- Publication number
- CN105952692A CN105952692A CN201610480780.3A CN201610480780A CN105952692A CN 105952692 A CN105952692 A CN 105952692A CN 201610480780 A CN201610480780 A CN 201610480780A CN 105952692 A CN105952692 A CN 105952692A
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- Prior art keywords
- valve
- hydraulic
- cavity volume
- inserted valve
- control
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Classifications
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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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/021—Installations or systems with accumulators used for damping
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- 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
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/10—Power-driven drivers with pressure-actuated hammer, i.e. the pressure fluid acting directly on the hammer structure
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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
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/008—Reduction of noise or vibration
-
- 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
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
- F15B2013/004—Cartridge valves
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B2013/0448—Actuation by solenoid and permanent magnet
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to a hydraulic control system for sequential control of hydraulic pile hammers. A pressure oil device is respectively communicated with a lower hydraulic cavity, a lower accommodating cavity and a control cavity of a first cartridge valve, a lower accommodating cavity and a control cavity of a second cartridge valve, a first oil port of a sequence valve and a pressure oil port of an electromagnetic valve through first one-way valves; an upper hydraulic cavity is respectively communicated with an upper accommodating cavity of the first cartridge cavity, an upper accommodating cavity of the second cartridge valve and a lower accommodating cavity of the third cartridge valve; a lower hydraulic cavity is respectively communicated with the lower accommodating cavity of the first cartridge cavity, the lower accommodating cavity of the second cartridge cavity and the first oil port of the sequence valve; the upper accommodating cavity of the first cartridge valve is communicated with the upper accommodating cavity of the second cartridge valve; the upper accommodating cavity of the second cartridge valve is communicated with the lower accommodating cavity of the third cartridge valve; and control ports of the electromagnetic valve are respectively communicated with a control cavity of the sequence valve and a control cavity of the third cartridge valve. The hydraulic control system is high in control efficiency, can control the piling energy and frequency, and belongs to the technical field of hydraulic piling.
Description
Technical field
The present invention relates to the technical field of hydraulic pile, particularly to the liquid of a kind of hydraulic pile hammer sequential control
Pressure control system.
Background technology
The hydraulic control system of hydraulic pile hammer sequential control is to realize piling cycle of operation and determine pile hammer work
Make the core link of performance.Existing pile hammer major part is diesel hammer, under diesel hammer blow efficiency, pollutes
Greatly, efficiency low, under more existing hydraulic pile hammer control efficiencies, commutation pressure oscillation is big, oil transportation
Pipe rocks greatly, simultaneously it cannot be guaranteed that the energy required by Da Zhuan and the repeatable accuracy of strike.
Summary of the invention
For technical problem present in prior art, it is an object of the invention to: a kind of hydraulic pile hammer is provided
The hydraulic control system of sequential control, the control efficiency of this hydraulic control system is high, can control the energy of piling
And frequency.
In order to achieve the above object, the present invention adopts the following technical scheme that
The hydraulic control system of a kind of hydraulic pile hammer sequential control, including pile hammer, differential hydro cylinder, pressure
Power oil device, oil sump tank, the first check valve, the first inserted valve, the second inserted valve, the 3rd inserted valve, suitable
Sequence valve, electromagnetic valve, the second check valve；The piston rod of pile hammer passes differential hydro cylinder, and piston rod is provided with
Hydraulic piston, hydraulic piston and differential hydro cylinder form hydraulic cavities and lower hydraulic pressure chamber；Sequence valve is provided with first
Hydraulic fluid port and the second hydraulic fluid port, electromagnetic valve is provided with pressure oil port, oil return opening and control mouth；Pressure oil device is by the
One check valve respectively with lower hydraulic pressure chamber, the lower cavity volume of the first inserted valve and control chamber, the lower appearance of the second inserted valve
Chamber is connected with control chamber, the first hydraulic fluid port of sequence valve, the pressure oil port of electromagnetic valve；Upper hydraulic cavities respectively with
The lower cavity volume of the upper cavity volume of the first inserted valve, the upper cavity volume of the second inserted valve and the 3rd inserted valve is connected, under
Hydraulic cavities respectively with the lower cavity volume of the first inserted valve, the lower cavity volume of the second inserted valve and the first hydraulic fluid port of sequence valve
It is connected；The upper cavity volume of the first inserted valve and the upper cavity volume of the second inserted valve are connected, the second inserted valve upper
The lower cavity volume of cavity volume and the 3rd inserted valve is connected；Oil sump tank respectively with the lower cavity volume of the 3rd inserted valve and order
Second hydraulic fluid port of valve is connected, and oil sump tank is connected with the oil return opening of electromagnetic valve by the second check valve；Electromagnetism
The mouth that controls of valve is connected with the control chamber controlling chamber and the 3rd inserted valve of sequence valve respectively.
Further: hydraulic control system also includes the 4th inserted valve, the upper cavity volume of the 4th inserted valve and control
Chamber processed is all connected with lower hydraulic pressure chamber, the lower cavity volume of the 4th inserted valve and upper hydraulic cavities and the first inserted valve upper
Cavity volume is connected.When pile hammer is in extreme lower position, and the first inserted valve, the second inserted valve and the 3rd insert
Dress valve is in the closed mode during commutation, when the stake hit has bounce-back, and the upper hydraulic pressure of differential hydro cylinder
The pressure in chamber is in the instantaneous state that builds the pressure, and now the 4th inserted valve will open (the upper cavity volume of the 4th inserted valve
It is connected with lower cavity volume) so that the upper hydraulic cavities of differential hydro cylinder is connected with lower hydraulic pressure chamber, the first accumulator
Now absorb shock pulse, play cushioning effect.
Further: hydraulic control system also includes the first accumulator, the first accumulator and lower hydraulic pressure chamber phase
Connection.Pile hammer is in uphill process, and the first accumulator is in releasability state, and the i.e. first accumulator is released
Put pressure oil, to promote the lifting of pile hammer.Second accumulator is in oil return shock-absorbing state, i.e. in pile hammer
In lifting process, each petroleum pipeline in hydraulic control system rocks greatly, fluctuates greatly, and the second accumulator can be inhaled
Receive energy, prevent the vibration of petroleum pipeline.
Further: hydraulic control system also includes the second accumulator, the second accumulator and the 3rd inserted valve
Lower cavity volume, oil sump tank, the second hydraulic fluid port of sequence valve be connected, the second accumulator by the second check valve with
The oil return opening of electromagnetic valve is connected.When pile hammer is during declining, and the first accumulator is in energy accumulating state,
The excessive power that i.e. pressure oil device produces during pile hammer declines is absorbed by the first accumulator.
Generally speaking, present invention have the advantage that
The control efficiency of hydraulic control system the most of the present invention is high, can control energy and the frequency of piling.
2. due to the fact that and be provided with the first accumulator and the second accumulator, petroleum pipeline rocks little.
3. the present invention is provided with the 4th inserted valve, and when pile hammer is switched to promote by whereabouts, commutate pressure oscillation
Little.
Hydraulic control system the most of the present invention can control the rising of pile hammer, optional position is commutated descending, it is achieved beats
The tip-tap of pile monkey and beating again, thus control driving energy and frequency, tip-tap altofrequency, weight can be realized
Beat stable.
5. the hydraulic control system of the present invention is stable, commutates any and controlled, can guarantee that the energy required by piling
Amount and the repeatable accuracy hit.
Accompanying drawing explanation
When Fig. 1 is pile hammer of the present invention rising, the principle service chart of hydraulic control system.
When Fig. 2 is pile hammer of the present invention decline, the principle service chart of hydraulic control system.
Fig. 3 is present invention when being in middle bit buffering process, the principle service chart of hydraulic control system.
Wherein, 1 is pressure oil device, and 2 is oil sump tank, and 3 is the piston rod of pile hammer, and 4 is hydraulic piston,
5 is differential hydro cylinder, and 6 is the first check valve, and 7 is the first accumulator, and 8 is the control chamber of the 4th inserted valve,
9 is the lower cavity volume of the 4th inserted valve, and 10 is the upper cavity volume of the 4th inserted valve, and 11 is the control of the first inserted valve
Chamber, 12 is the upper cavity volume of the first inserted valve, and 13 is the lower cavity volume of the first inserted valve, and 14 is the second inserted valve
Controlling chamber, 15 is the upper cavity volume of the second inserted valve, and 16 is the lower cavity volume of the second inserted valve, and 17 is the 3rd plug-in mounting
The control chamber of valve, 18 is the upper cavity volume of the 3rd inserted valve, and 19 is the lower cavity volume of the 3rd inserted valve, and 20 is order
The control chamber of valve, 21 is the control mouth of electromagnetic valve, and 22 is the pressure oil port of electromagnetic valve, and 23 is returning of electromagnetic valve
Hydraulic fluid port, 24 is the second accumulator, and 25 is the second check valve.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
The hydraulic control system of a kind of hydraulic pile hammer sequential control, including pile hammer, differential hydro cylinder, pressure
Power oil device, oil sump tank, the first check valve, the first inserted valve, the second inserted valve, the 3rd inserted valve, suitable
Sequence valve, electromagnetic valve, the second check valve；The piston rod of pile hammer passes differential hydro cylinder, and piston rod is provided with
Hydraulic piston, hydraulic piston and differential hydro cylinder form hydraulic cavities and lower hydraulic pressure chamber, and pile hammer includes piston
Bar, hydraulic piston and hammer core, hammer core is arranged on the lower end of piston rod；Sequence valve is provided with the first hydraulic fluid port and second
Hydraulic fluid port, electromagnetic valve is provided with pressure oil port, oil return opening and control mouth；Pressure oil device is divided by the first check valve
Not with lower hydraulic pressure chamber, the lower cavity volume of the first inserted valve and control chamber, the lower cavity volume of the second inserted valve and control chamber,
First hydraulic fluid port of sequence valve, the pressure oil port of electromagnetic valve are connected；Upper hydraulic cavities respectively with the first inserted valve
The lower cavity volume of upper cavity volume, the upper cavity volume of the second inserted valve and the 3rd inserted valve is connected, lower hydraulic pressure chamber respectively with
The lower cavity volume of the first inserted valve, the lower cavity volume of the second inserted valve are connected with the first hydraulic fluid port of sequence valve；First
The upper cavity volume of inserted valve and the upper cavity volume of the second inserted valve are connected, and the upper cavity volume of the second inserted valve and the 3rd is inserted
The lower cavity volume of dress valve is connected；Oil sump tank respectively with lower cavity volume and second hydraulic fluid port of sequence valve of the 3rd inserted valve
Being connected, oil sump tank is connected with the oil return opening of electromagnetic valve by the second check valve；The control mouth of electromagnetic valve divides
It is not connected with the control chamber controlling chamber and the 3rd inserted valve of sequence valve.
The chamber that controls of the first inserted valve (holds on the i.e. first inserted valve for the open/close states controlling the first inserted valve
The connected state of chamber and lower cavity volume), when to the first inserted valve when controlling the enough pressure oil of chamber input, i.e. the
One inserted valve is closed, and the upper cavity volume of the first inserted valve and the lower cavity volume of the first inserted valve do not connect,
I.e. go up the pressure oil in cavity volume and the pressure oil in lower cavity volume can not flow mutually；When under the first inserted valve
During the enough pressure oil of cavity volume input, the first inserted valve is in open mode, the upper cavity volume of the first inserted valve and
The lower cavity volume of the first inserted valve is connected, and i.e. goes up the pressure oil in cavity volume and the pressure oil in lower cavity volume can be mutually
Flowing.The structure of the second inserted valve, the 3rd inserted valve and the 4th inserted valve is also the same with use principle.
When the right position function of electromagnetic valve obtains electric, the oil return opening controlling mouth and electromagnetic valve of electromagnetic valve communicates, i.e. pressure
Oil can flow to the oil return opening of electromagnetic valve from the mouth that controls of electromagnetic valve, and pressure oil can not be from the pressure oil of electromagnetic valve
Mouth flows to the control mouth of electromagnetic valve；When the left position function of electromagnetic valve obtains electric, the pressure oil port of electromagnetic valve and electricity
The control mouth of magnet valve communicates, i.e. pressure oil can flow to the control mouth of electromagnetic valve from the pressure oil port of electromagnetic valve,
Pressure oil can not flow to the oil return opening of electromagnetic valve from the mouth that controls of electromagnetic valve.Sequence valve controls the pressure oil of intracavity
When electromagnetic valve flows back to oil sump tank, sequence valve is under the effect of self regulation spring, and sequence valve is in cut out shape
State, the first hydraulic fluid port and second hydraulic fluid port of sequence valve are not communicated with；When the intracavity that controls of sequence valve has enough pressure
During oil, sequence valve is in open mode, and the first hydraulic fluid port and second hydraulic fluid port of sequence valve communicate.
Hydraulic control system also includes the 4th inserted valve, the upper cavity volume of the 4th inserted valve and control chamber all with lower liquid
Pressure chamber is connected, and the lower cavity volume of the 4th inserted valve is connected with the upper cavity volume of upper hydraulic cavities and the first inserted valve.
When pile hammer is in extreme lower position, and the first inserted valve, the second inserted valve and the 3rd inserted valve are in commutation
The closed mode of period, when the stake hit has bounce-back, the pressure of the upper hydraulic cavities of differential hydro cylinder is in
The instantaneous state that builds the pressure, now the 4th inserted valve will open that (the upper cavity volume of the 4th inserted valve is connected with lower cavity volume
Logical) so that the upper hydraulic cavities of differential hydro cylinder is connected with lower hydraulic pressure chamber, and the first accumulator now absorbs vibrations
Pulse, plays cushioning effect, and differential hydro cylinder is double piston-rod differential hydro cylinder.
Hydraulic control system also includes that the first accumulator, the first accumulator are connected with lower hydraulic pressure chamber.Pile hammer
In uphill process, the first accumulator is in releasability state, and the i.e. first accumulator discharges pressure oil, with
Promote the lifting of pile hammer.Second accumulator is in oil return shock-absorbing state, i.e. in pile hammer lifting process,
Each petroleum pipeline in hydraulic control system rocks greatly, fluctuates greatly, and the second accumulator can absorb energy, prevents
The vibration of petroleum pipeline.
Hydraulic control system also includes the second accumulator, the second accumulator and the lower cavity volume of the 3rd inserted valve, returns
Fuel tank, the second hydraulic fluid port of sequence valve are connected, and the second accumulator is by the oil return of the second check valve with electromagnetic valve
Mouth is connected.When pile hammer is during declining, and the first accumulator is in energy accumulating state, i.e. under pile hammer
The excessive power that during fall, pressure oil device produces is absorbed by the first accumulator.
Shown in Fig. 1, run this hydraulic control system carry out promote pile hammer operation time, electromagnetic valve is in
Right position function obtains electricity condition, and the oil return opening controlling mouth and electromagnetic valve of electromagnetic valve communicates, and sequence valve controls intracavity
Pressure oil flow to the control mouth (sequence valve is i.e. closed) of electromagnetic valve, then flow to the oil return of electromagnetic valve
Mouthful, then flow back to oil sump tank.The pressure oil of the 3rd inserted valve control intracavity flows to the control mouth the (the 3rd of electromagnetic valve
Inserted valve is i.e. in open mode), then flow to the oil return opening of electromagnetic valve, then flow back to oil sump tank.Pressure oil device
Pressure oil flow to the first check valve after: the pressure oil of a part flows to the lower hydraulic pressure chamber of differential hydro cylinder, with
Pile hammer is promoted to move upward；The pressure oil of another part flows to the first inserted valve and the control of the second inserted valve
Chamber so that the first inserted valve and the second inserted valve are closed；Due to the first inserted valve and the second plug-in mounting
Valve is closed, and the pressure oil of another part can only flow into the lower appearance of the first inserted valve and the second inserted valve
Intracavity；Owing to sequence valve is closed, the pressure oil of another part can only flow to the first oil of sequence valve
At Kou.Pressure oil in hydraulic cavities on differential hydro cylinder, a part flows to the upper cavity volume of the first inserted valve, separately
A part flows to the lower cavity volume of the 3rd inserted valve.On first inserted valve, the pressure oil of cavity volume flows to the second inserted valve
Upper cavity volume, then flow to the lower cavity volume of the 3rd inserted valve.Owing to the 3rd inserted valve is in open mode, the 3rd
Under inserted valve, the pressure oil in cavity volume flows to oil sump tank.Piling can be controlled by controlling the electric time that obtains of electromagnetic valve
The lifting height of hammer.
Shown in Fig. 2, run this hydraulic control system when carrying out the operation that pile hammer is dropped hammer, at electromagnetic valve
In left position, function obtains electricity condition, and the pressure oil port controlling mouth and electromagnetic valve of electromagnetic valve communicates, pressure oil device
Pressure oil flow to the first check valve after: the pressure oil of a part flows to the control chamber of sequence valve after electromagnetic valve
Interior (sequence valve is i.e. in open mode)；The pressure oil of another part flows to the 3rd inserted valve after electromagnetic valve
Control chamber (the 3rd inserted valve is closed)；Owing to sequence valve is in open mode, the first inserted valve and
Second inserted valve controls the pressure oil of intracavity and flows through sequence valve, then flows back to oil sump tank；Then pressure oil device
After pressure oil flows to the first check valve again: the pressure oil of a part flows to the first inserted valve and the second inserted valve
Lower cavity volume after (the first inserted valve and the second inserted valve have been in open mode), then flow into differential hydro cylinder
Upper hydraulic cavities, to promote pile hammer to move downward；Pressure oil in differential hydro cylinder lower hydraulic pressure chamber flows to first
Inserted valve and the lower cavity volume of the second inserted valve, thus reached being connected of upper hydraulic cavities and lower hydraulic pressure chamber.Logical
The electric time that obtains crossing control electromagnetic valve can control the time of staying of pile hammer.
Shown in Fig. 3, when this hydraulic control system is in middle bit buffering process, pile hammer is in lowest order
Putting, the first inserted valve, the second inserted valve, the 3rd inserted valve are in the closed mode during commutation, sequence valve
Being closed, when the stake hit has bounce-back, the pressure of the upper hydraulic cavities of differential hydro cylinder is in wink
Time build the pressure state, now the 4th inserted valve will be opened, such that it is able to make differential hydro cylinder upper hydraulic cavities and
Lower hydraulic pressure chamber is connected, and plays cushioning effect；Meanwhile, the first accumulator can absorb now oil circuit vibration arteries and veins
The energy of punching, plays cushioning effect.
Solid dot in Fig. 1, Fig. 2, Fig. 3 represents what each oil circuit at this solid dot was connected to lead to.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-mentioned reality
Execute the restriction of example, the change made under other any spirit without departing from the present invention and principle, modification,
Substitute, combine, simplify, all should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (4)
1. the hydraulic control system of a hydraulic pile hammer sequential control, it is characterised in that: include pile hammer, differential
Hydraulic cylinder, pressure oil device, oil sump tank, the first check valve, the first inserted valve, the second inserted valve, the 3rd
Inserted valve, sequence valve, electromagnetic valve, the second check valve；The piston rod of pile hammer passes differential hydro cylinder, lives
Stopper rod is provided with hydraulic piston, and hydraulic piston and differential hydro cylinder form hydraulic cavities and lower hydraulic pressure chamber；Sequentially
Valve is provided with the first hydraulic fluid port and the second hydraulic fluid port, and electromagnetic valve is provided with pressure oil port, oil return opening and control mouth；Pressure oil
Device by the first check valve respectively with lower hydraulic pressure chamber, the lower cavity volume of the first inserted valve and control chamber, second insert
The lower cavity volume of dress valve is connected with control chamber, the first hydraulic fluid port of sequence valve, the pressure oil port of electromagnetic valve；Upper liquid
Pressure chamber respectively with the upper cavity volume of the first inserted valve, the upper cavity volume of the second inserted valve and the lower cavity volume of the 3rd inserted valve
Be connected, lower hydraulic pressure chamber respectively with the lower cavity volume of the first inserted valve, the lower cavity volume of the second inserted valve and sequence valve
The first hydraulic fluid port be connected；The upper cavity volume of the first inserted valve and the upper cavity volume of the second inserted valve are connected, and second
The upper cavity volume of inserted valve and the lower cavity volume of the 3rd inserted valve are connected；Oil sump tank respectively with under the 3rd inserted valve
Cavity volume is connected with the second hydraulic fluid port of sequence valve, and oil sump tank is by the oil return opening phase of the second check valve with electromagnetic valve
Connection；The mouth that controls of electromagnetic valve is connected with the control chamber controlling chamber and the 3rd inserted valve of sequence valve respectively.
2., according to the hydraulic control system of a kind of hydraulic pile hammer sequential control described in claim 1, its feature exists
Also include the 4th inserted valve in: hydraulic control system, the upper cavity volume of the 4th inserted valve and control chamber all with lower liquid
Pressure chamber is connected, and the lower cavity volume of the 4th inserted valve is connected with the upper cavity volume of upper hydraulic cavities and the first inserted valve.
3., according to the hydraulic control system of a kind of hydraulic pile hammer sequential control described in claim 1, its feature exists
In: hydraulic control system also includes that the first accumulator, the first accumulator are connected with lower hydraulic pressure chamber.
4., according to the hydraulic control system of a kind of hydraulic pile hammer sequential control described in claim 1, its feature exists
Also include the second accumulator in: hydraulic control system, the second accumulator and the lower cavity volume of the 3rd inserted valve, return
Fuel tank, the second hydraulic fluid port of sequence valve are connected, and the second accumulator is by the oil return of the second check valve with electromagnetic valve
Mouth is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480780.3A CN105952692B (en) | 2016-06-23 | 2016-06-23 | A kind of hydraulic control system of hydraulic pile hammer sequential control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480780.3A CN105952692B (en) | 2016-06-23 | 2016-06-23 | A kind of hydraulic control system of hydraulic pile hammer sequential control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105952692A true CN105952692A (en) | 2016-09-21 |
| CN105952692B CN105952692B (en) | 2018-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610480780.3A Active CN105952692B (en) | 2016-06-23 | 2016-06-23 | A kind of hydraulic control system of hydraulic pile hammer sequential control |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375947A (en) * | 2018-05-21 | 2018-08-07 | 广东力源液压机械有限公司 | A kind of hydraulic pile hammer real-time running state monitoring method and its system |
| CN108757648A (en) * | 2018-05-21 | 2018-11-06 | 广东力源液压机械有限公司 | A kind of hydraulic pile hammer control method and its system |
| CN109137909A (en) * | 2018-10-29 | 2019-01-04 | 福建海威液压机械有限公司 | The control system of double-action hydraulic pile hammer |
| CN110588039A (en) * | 2019-10-25 | 2019-12-20 | 重庆江东机械有限责任公司 | Large-tonnage hydraulic press grading control pressurization system |
| CN110985483A (en) * | 2020-01-06 | 2020-04-10 | 上海工程机械厂有限公司 | Hydraulic system of hydraulic hammer |
| CN113202095A (en) * | 2021-04-14 | 2021-08-03 | 中信重工机械股份有限公司 | Hydraulic pile hammer oil way, method for prolonging service life of pipeline part of hydraulic pile hammer and hydraulic pile hammer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108375947A (en) * | 2018-05-21 | 2018-08-07 | 广东力源液压机械有限公司 | A kind of hydraulic pile hammer real-time running state monitoring method and its system |
| CN108757648A (en) * | 2018-05-21 | 2018-11-06 | 广东力源液压机械有限公司 | A kind of hydraulic pile hammer control method and its system |
| CN109137909A (en) * | 2018-10-29 | 2019-01-04 | 福建海威液压机械有限公司 | The control system of double-action hydraulic pile hammer |
| CN109137909B (en) * | 2018-10-29 | 2020-08-28 | 福建海威液压机械有限公司 | Control system of double-acting hydraulic pile hammer |
| CN110588039A (en) * | 2019-10-25 | 2019-12-20 | 重庆江东机械有限责任公司 | Large-tonnage hydraulic press grading control pressurization system |
| CN110985483A (en) * | 2020-01-06 | 2020-04-10 | 上海工程机械厂有限公司 | Hydraulic system of hydraulic hammer |
| CN113202095A (en) * | 2021-04-14 | 2021-08-03 | 中信重工机械股份有限公司 | Hydraulic pile hammer oil way, method for prolonging service life of pipeline part of hydraulic pile hammer and hydraulic pile hammer |
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| CN105952692B (en) | 2018-03-02 |
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