CN105927606A - Hydraulic piling system and cartridge valve thereof - Google Patents
Hydraulic piling system and cartridge valve thereof Download PDFInfo
- Publication number
- CN105927606A CN105927606A CN201610480824.2A CN201610480824A CN105927606A CN 105927606 A CN105927606 A CN 105927606A CN 201610480824 A CN201610480824 A CN 201610480824A CN 105927606 A CN105927606 A CN 105927606A
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- China
- Prior art keywords
- valve
- spool
- hydraulic
- fluid port
- hydraulic fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
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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
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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
Abstract
The invention relates to a cartridge valve used for a hydraulic piling system. The cartridge valve comprises a control cover plate, valve cores, valve sleeves, a reset spring and a valve core guide sleeve. The valve cores are sleeved with axial through holes of the valve sleeves. The first segment valve core and the first segment valve sleeve form a guide cavity. The valve core guide sleeve is arranged on the guide cavity. The second segment valve sleeve is provided with a first valve sleeve oil channel and a second valve sleeve oil channel. The first valve sleeve oil channel communicates with a first seal containing cavity. The second valve sleeve oil channel communicates with a second seal containing cavity. An oil channel cavity is arranged in the third segment valve core. A reset spring cavity used for containing the reset spring is arranged in the first segment valve core. A third oil opening communicates with the oil channel cavity. The invention further relates to the hydraulic piling system and belongs to the technical field of hydraulic piling. According to the cartridge valve, the purposes of large flow communication and high response speed can be achieved. According to the hydraulic piling system, an oil way is simple, and the piling purpose can be achieved very well.
Description
Technical field
The present invention relates to the technical field of hydraulic pile, particularly relate to a kind of hydraulic pile system and inserted valve thereof.
Background technology
The two-position three-way valve of common big flow all uses the design form of guiding valve, this kind of valve to have two function positions,
The through-current capability of the first function position of this kind of valve halves relative to the through-current capability of two-way plug-in valve, the second function position
The through-current capability of through-current capability and two-way plug-in valve suitable, the through-current capability of the first function position is less than the second machine
The through-current capability of energy position.In hydraulic pile hammer hydraulic system, use Differential Control oil circuit so that oil
When cylinder is up, cylinder upper cavity oil oil extraction is stable, when oil cylinder is descending, needs to connect the upper and lower cavity of oil cylinder, and
Linear speed reaches more than 5m/s so that become several times of increases by the flow of control valve during upper and lower cavity connection.For
Reach the control switching of big flow, general use magnetic valve and the combination of common inserted valve to form control valve group,
Thus carry out commutation switching, but so certainly will add the complexity of oil circuit, reduce system can simultaneously
By property.After Multistage Control so that control response speed slow, so that whole hydraulic pile system
Need higher striking frequency.
Summary of the invention
For technical problem present in prior art, it is an object of the invention to: a kind of big flow, sound are provided
Should the fireballing inserted valve for hydraulic pile system；
Another object of the present invention is to provide a kind of hydraulic pile system, this hydraulic pile system oil-way is simple,
Purpose of driving piles can be realized well.
In order to achieve the above object, the present invention adopts the following technical scheme that
A kind of inserted valve for hydraulic pile system, including control cover plate, spool, valve pocket, back-moving spring,
Spool fairlead；Described spool be divided into from top to bottom first paragraph spool, second segment spool, the 3rd section
Spool, described valve pocket is divided into first paragraph valve pocket, second segment valve pocket, the 3rd section of valve pocket from top to bottom；
Described spool is inserted in the axially extending bore of valve pocket, and first paragraph spool and first paragraph valve pocket are formed and guide cavity,
Spool fairlead is arranged on guiding cavity；Second segment valve pocket, spool fairlead, first paragraph spool, second
Section spool surrounds the first sealed volume, second segment valve pocket, the 3rd section of valve pocket, second segment spool, the 3rd section of valve
Core surrounds the second sealed volume；Second segment valve pocket is provided with the first valve pocket oil duct and the second valve pocket oil duct, and first
Valve pocket oil duct and the first sealed volume communicate, and the second valve pocket oil duct and the second sealed volume communicate；3rd section of valve
Putting the second hydraulic fluid port of the first hydraulic fluid port and the multiple radial direction being provided with multiple radial direction, the first hydraulic fluid port is positioned at the second hydraulic fluid port
Top；3rd section of spool is provided with the 3rd hydraulic fluid port of multiple radial direction, is provided with oil duct cavity in the 3rd section of spool,
The back-moving spring cavity for placing back-moving spring, the 3rd hydraulic fluid port and oil duct cavity phase it is provided with in first paragraph spool
Logical；Described valve pocket is inserted in control cover plate, is provided with the first cover plate oil duct and the second cover plate oil in controlling cover plate
Road, the first cover plate oil duct and the first valve pocket oil duct communicate, and the second cover plate oil duct and the second valve pocket oil duct communicate；
One end of back-moving spring connects with controlling cover plate, and the other end connects with second segment spool；
Moving upward with spool, the second hydraulic fluid port communicates with the axially extending bore of valve pocket, moves downward with spool, the
One hydraulic fluid port and the 3rd hydraulic fluid port communicate.
When input pressure oil in the first cover plate oil duct, pressure oil enters the first valve pocket from the first cover plate oil duct
Oil duct, enters back into the first sealed volume；Pressure oil in first sealed volume is to the upper surface of second segment spool
Applying pressure, make spool move downward, the back-moving spring being simultaneously in compressive state also promotes spool to transport downwards
Dynamic；Meanwhile, the oil of the second sealed volume flows out the second valve pocket oil duct, then flows out the second cover plate oil duct；
Move downward with spool, communicate between the first hydraulic fluid port, the 3rd hydraulic fluid port, oil duct cavity, pressure oil due to
Stopped by the 3rd section of spool, it is impossible to enter oil duct cavity from the second hydraulic fluid port.
Further: the 3rd section of described valve pocket is provided with the internal projection for stoping spool to move downward,
Three sections of spools are provided with the outer lug adapted with internal projection, and internal projection is positioned at the following of the second hydraulic fluid port, outer lug
It is positioned at the following of the 3rd hydraulic fluid port.Spool is made to have moved downward an extreme position.
Further: in described spool fairlead, be provided with the first seal.First seal can prevent
Pressure oil in one sealed volume is revealed.
Further: in described second segment spool, be provided with the second seal.Second seal can intercept
Pressure oil in one sealed volume and the second sealed volume is connected.
Further: being provided with the 3rd seal in the 3rd section of described spool, the 3rd seal is positioned at the 3rd
The top of hydraulic fluid port.3rd seal can prevent the pressure oil in the second sealed volume from revealing.
Further: described oil duct cavity communicates with back-moving spring cavity, first paragraph spool upper surface
Pressure area is equal with the pressure area of the 3rd section of spool lower surface.Can ensure that spool the top and under
The pressure of end is equal, the discharge pressure interference to spool, it is ensured that spool having stable behavior.
A kind of hydraulic pile system, including inserted valve, pile hammer, differential hydro cylinder, pressure oil device, returns
Fuel tank, magnetic valve；The piston rod of pile hammer passes differential hydro cylinder, and piston rod is provided with hydraulic piston, liquid
Pressure piston forms hydraulic cavities and lower hydraulic pressure chamber with differential hydro cylinder；Pressure oil device respectively with lower hydraulic pressure chamber,
Second hydraulic fluid port, the pressure oil port of magnetic valve are connected, and lower hydraulic pressure chamber and the second hydraulic fluid port are connected, upper hydraulic cavities
Being connected with the axially extending bore of valve pocket, the first hydraulic fluid port is connected with oil return box, the oil return opening of magnetic valve and oil return
Case is connected, and the first control mouth of magnetic valve and the first cover plate oil duct are connected, the second control mouth of magnetic valve
It is connected with the second cover plate oil duct；
Under magnetic valve is in power failure state, the pressure oil port of magnetic valve communicates with the first control mouth of magnetic valve,
The oil return opening of magnetic valve communicates with the second control mouth of magnetic valve；When magnetic valve be under electricity condition, electromagnetism
The pressure oil port of valve communicates with the second control mouth of magnetic valve, and the oil return opening of magnetic valve is controlled with the first of magnetic valve
Donsole communicates.
When using this hydraulic pile system to make pile hammer up move, a part of pressure oil stream of pressure oil device
Enter the lower hydraulic pressure chamber of differential hydro cylinder, make pile hammer up move；A part of pressure oil stream of pressure oil device
To the pressure oil port of magnetic valve (now magnetic valve is in power failure state), then by the first control mouth of magnetic valve
Flow out, then flow to the first cover plate oil duct, so that spool down moves, when spool down moves to certain journey
When spending, the first hydraulic fluid port and the 3rd hydraulic fluid port are connected, and on differential hydro cylinder, the pressure oil in hydraulic cavities flows to spool
Oil duct cavity, then flow to oil return box from the 3rd hydraulic fluid port and the first hydraulic fluid port.
Further: described inserted valve has two.
Further: hydraulic pile system also includes two the first accumulators, the first accumulator and the second oil
Mouth is connected.
Further: hydraulic pile system also includes the second accumulator, the second accumulator and the first hydraulic fluid port phase
Connection.
Generally speaking, present invention have the advantage that
1. when the present invention the second hydraulic fluid port is connected with the axially extending bore of valve pocket, it is achieved the pressure oil circulation of big flow.
2. when first hydraulic fluid port of the present invention and the 3rd hydraulic fluid port are connected, it is achieved the pressure oil circulation of relatively low discharge.
3. the volume of the present invention the first sealed volume and the second sealed volume is less, it is only necessary to less both can be fast
Speed response.
4. present invention can ensure that the top of spool and the pressure of bottom are equal, discharge pressure is to valve
The interference of core, it is ensured that spool having stable behavior.
Accompanying drawing explanation
Fig. 1 is the inserted valve spool of the present invention structural representation when moving downward.
Fig. 2 is the enlarged drawing at Figure 1A.
Fig. 3 is the enlarged drawing at Figure 1B.
Fig. 4 is the inserted valve spool of the present invention structural representation when moving upward.
Fig. 5 is the hydraulic pile system of the present invention structural representation when making pile hammer up move.
Fig. 6 is the hydraulic pile system of the present invention structural representation when making pile hammer down impact motion.
Wherein, 1 is first paragraph valve pocket, and 2 is second segment valve pocket, and 3 is the 3rd section of valve pocket, and 4 is first paragraph valve
Core, 5 is second segment spool, and 6 is the 3rd section of spool, and 7 is spool fairlead, and 8 is back-moving spring, and 9 is
One seal, 10 is the second seal, and 11 is the 3rd seal, and 12 is the first sealed volume, and 13 is
Two sealed volumes, 14 is the first valve pocket oil duct, and 15 is the second valve pocket oil duct, and 16 is the first cover plate oil duct, 17
Being the second cover plate oil duct, 18 is back-moving spring cavity, and 19 is oil duct cavity, and 20 is the axially extending bore of valve pocket,
21 is the first hydraulic fluid port, and 22 is the second hydraulic fluid port, and 23 is the 3rd hydraulic fluid port, and 24 for controlling cover plate, and 25 is the 3rd section
The internal projection of valve pocket, 26 is the outer lug of the 3rd section of spool, and 27 is internal projection step, and 28 is outer lug step,
29 is pressure oil device, and 30 is oil return box, and 31 is the hammer core of pile hammer, and 32 is the piston rod of pile hammer,
33 is hydraulic piston, and 34 is the upper hydraulic cavities of differential hydro cylinder, and 35 is the lower hydraulic pressure chamber of differential hydro cylinder, 36
For trimmer valve, 37 is the pressure oil port of magnetic valve, and 38 is the oil return opening of magnetic valve, and 39 is the first of magnetic valve
Controlling mouth, 40 is the second control mouth of magnetic valve, and 41 is the first accumulator, and 42 is the second accumulator.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
For the convenience of narration, hereafter described direction up and down is consistent with the direction up and down of Fig. 1 itself.
Shown in Fig. 1 and Fig. 4, a kind of inserted valve for hydraulic pile system, including control cover plate,
Spool, valve pocket, back-moving spring, spool fairlead.Described spool is divided into first paragraph valve from top to bottom
Core, second segment spool, the 3rd section of spool, described valve pocket be divided into from top to bottom first paragraph valve pocket,
Two sections of valve pockets, the 3rd section of valve pockets.Valve pocket is provided with axially extending bore, and this axially extending bore is through to from the lower end of valve pocket
The upper end of valve pocket, the outer wall of second segment spool is provided with outside outer lug step, the upper end of this outer lug step
More than face being first paragraph spool, be the 3rd section of spool below the lower surface of outer lug step, the inwall of spool sets
Having inside internal projection step, the upper surface of internal projection step is positioned at second segment spool.Second segment valve pocket
Inwall protrudes inwardly from, and the inwall of the 3rd section of valve pocket protrudes inwardly from further, i.e. first paragraph valve pocket formed interior
The cross-sectional area in chamber is maximum, and the cross-sectional area of the inner chamber that second segment valve pocket is formed takes second place, the 3rd section of valve pocket institute
The cross-sectional area of the inner chamber formed is minimum.Valve pocket is pointed at the center of the i.e. valve pocket of outwardly direction described herein
Outer wall, the outer wall of the i.e. valve pocket of described inward direction points to the center of valve pocket.
Shown in Fig. 1 and Fig. 3, described spool is inserted in the axially extending bore of valve pocket, first paragraph spool and
First paragraph valve pocket is formed and guides cavity, and spool fairlead is arranged on guiding cavity；The inwall of second segment valve pocket,
The lower surface of spool fairlead, the outer wall of first paragraph spool, upper surface (the i.e. outer lug platform of second segment spool
The upper surface on rank) surround the first sealed volume, the inwall of second segment valve pocket, the upper surface of the 3rd section of valve pocket,
The lower surface (i.e. the lower surface of outer lug step) of second segment spool, that the outer wall of the 3rd section of spool surrounds second is close
Envelope cavity volume.Second segment valve pocket is provided with the first valve pocket oil duct and the second valve pocket oil duct, the first valve pocket oil duct and
One sealed volume communicates, and the second valve pocket oil duct and the second sealed volume communicate.3rd section of valve pocket is provided with multiple
The first hydraulic fluid port radially and the second hydraulic fluid port of multiple radial direction, the first hydraulic fluid port is positioned at the top of the second hydraulic fluid port；First
Hydraulic fluid port and the second hydraulic fluid port are uniformly distributed along the excircle side of the 3rd section of valve pocket, between each first hydraulic fluid port are
Communicate, communicate between each second hydraulic fluid port.3rd section of spool is provided with the 3rd hydraulic fluid port of multiple radial direction,
3rd hydraulic fluid port is uniformly distributed along the circumference side of the 3rd section of spool；It is provided with oil duct cavity in 3rd section of spool,
The back-moving spring cavity for placing back-moving spring, the 3rd hydraulic fluid port and oil duct cavity phase it is provided with in first paragraph spool
Logical, back-moving spring cavity and oil duct cavity communicate.Described valve pocket is inserted in control cover plate, controls lid
It is provided with the first cover plate oil duct and the second cover plate oil duct, the first cover plate oil duct and the first valve pocket oil duct in plate to communicate,
Second cover plate oil duct and the second valve pocket oil duct communicate.Controlling cover plate is internal cavity structure, one end of back-moving spring
Connecting with the upper wall controlling cover plate internal cavity, the other end connects with the upper surface of internal projection step, i.e. the other end
Connect with second segment spool.The volume of the first sealed volume and the second sealed volume is less, it is only necessary to less
Pressure oil can obtain this inserted valve.
When input pressure oil in the first cover plate oil duct, pressure oil enters the first valve pocket from the first cover plate oil duct
Oil duct, enters back into the first sealed volume；Pressure oil in first sealed volume is to the upper surface of second segment spool
(upper surface of outer lug step) applies pressure, makes spool move downward, is simultaneously in answering of compressive state
Position spring also promotes spool to move downward；Meanwhile, the oil of the second sealed volume flows out the second valve pocket oil duct,
Flow out the second cover plate oil duct again；Move downward (when i.e. spool moves downwardly to relevant position) with spool, first
Communicating between hydraulic fluid port, the 3rd hydraulic fluid port, oil duct cavity, pressure oil is owing to being stopped, no by the 3rd section of spool
Oil duct cavity can be entered from the second hydraulic fluid port.Now, the first hydraulic fluid port and the 3rd hydraulic fluid port communicate, it is allowed to relatively low discharge
Circulation, flow circulation now is equivalent to wait the pressure oil circulation of latus rectum guiding valve flow.
When input pressure oil in the second cover plate oil duct, pressure oil enters the second valve pocket from the second cover plate oil duct
Oil duct, enters back into the second sealed volume；Pressure oil in second sealed volume is to the lower surface of second segment spool
(lower surface of outer lug step) applies pressure, makes spool move upward, and meanwhile, first seals appearance
The oil in chamber flows out the first valve pocket oil duct, then flows out the first cover plate oil duct；With spool move upward (i.e. spool to
On when moving to relevant position), the second hydraulic fluid port communicates with the axially extending bore of valve pocket, the lower end of valve pocket axially extending bore
Place communicates with oil duct cavity, and pressure oil is owing to being stopped by the 3rd section of spool, it is impossible to enter from the first hydraulic fluid port
Oil duct cavity.Now, the axially extending bore of the second hydraulic fluid port and valve pocket communicates, it is allowed to the pressure oil circulation of big flow.
Shown in Fig. 2, the 3rd section of described valve pocket is provided with the internal projection for stoping spool to move downward,
3rd section of spool is provided with the outer lug adapted with internal projection, and internal projection is positioned at the following of the second hydraulic fluid port, evagination
Rise and be positioned at the following of the 3rd hydraulic fluid port.Make spool move downward an extreme position, now also function to sealing function.
Being provided with the first seal in described spool fairlead, spool passes spool fairlead and the first seal, the
One seal can prevent the pressure oil in the first sealed volume from revealing.It is provided with second in described second segment spool
Seal, the pressure oil that the second seal can intercept in the first sealed volume and the second sealed volume is connected.
Being provided with the 3rd seal in the 3rd section of described spool, the 3rd seal is positioned at the top of the 3rd hydraulic fluid port, and the 3rd
Seal can prevent the pressure oil in the second sealed volume from revealing.Described oil duct cavity and back-moving spring cavity
Communicating, the pressure area of first paragraph spool upper surface is equal with the pressure area of the 3rd section of spool lower surface；Pressure
The area of area or the 3rd section of spool lower surface that power oil acts on first paragraph spool upper surface is referred to as pressure face
Long-pending, owing to oil duct cavity and back-moving spring cavity communicate, pressure oil can be flowed to reset by oil duct cavity
Spring plenum length, so can ensure that the top of spool and the pressure of bottom are equal, discharge pressure pair
The interference of spool, it is ensured that spool having stable behavior.
A kind of hydraulic pile system, including inserted valve, pile hammer, differential hydro cylinder, pressure oil device, returns
Fuel tank, magnetic valve.Described inserted valve has two.Pile hammer includes piston rod, hydraulic piston and hammer core,
Hammer core is arranged on the lower end of piston rod, and the piston rod of pile hammer passes differential hydro cylinder, and piston rod is provided with liquid
Pressure piston, hydraulic piston and differential hydro cylinder form hydraulic cavities and lower hydraulic pressure chamber.Pressure oil device respectively with
Lower hydraulic pressure chamber, the second hydraulic fluid port of two inserted valves, the pressure oil port of magnetic valve are connected, two inserted valves
Second hydraulic fluid port is connected to lead to, and the second hydraulic fluid port of lower hydraulic pressure chamber and two inserted valves is connected, upper hydraulic cavities with
The axially extending bore of two inserted valve valve pockets is connected, and the first hydraulic fluid port of two inserted valves is connected with oil return box,
First hydraulic fluid port of two inserted valves is connected to lead to, and the oil return opening of magnetic valve is connected with oil return box, magnetic valve
The first control mouth and the first cover plate oil duct be connected, the second of magnetic valve controls mouth and the second cover plate oil duct phase
Connection.
Under magnetic valve is in power failure state, the pressure oil port of magnetic valve communicates with the first control mouth of magnetic valve,
The oil return opening of magnetic valve communicates with the second control mouth of magnetic valve；When magnetic valve be under electricity condition, electromagnetism
The pressure oil port of valve communicates with the second control mouth of magnetic valve, and the oil return opening of magnetic valve is controlled with the first of magnetic valve
Donsole communicates.
Shown in Fig. 1 and Fig. 5, the solid dot in Fig. 5 represents that each oil circuit at this solid dot is connected to
Lead to.When using this hydraulic pile system to make pile hammer up move, a part of pressure oil of pressure oil device
Flow into the lower hydraulic pressure chamber of differential hydro cylinder, make pile hammer up move；A part of pressure oil of pressure oil device
Flow to the pressure oil port of magnetic valve (now magnetic valve is in power failure state), then by the first control of magnetic valve
Mouth flows out, then flows to the first cover plate oil duct, so that spool down moves, when spool down moves to necessarily
During degree, the first hydraulic fluid port and the 3rd hydraulic fluid port are connected, and on differential hydro cylinder, the pressure oil in hydraulic cavities flows to valve
The oil duct cavity of core, then it flow to oil return box from the 3rd hydraulic fluid port and the first hydraulic fluid port.
Shown in Fig. 4 and Fig. 6, the solid dot in Fig. 6 represents that each oil circuit at this solid dot is connected to
Lead to.When using this hydraulic pile system to make pile hammer down move, a part of pressure oil of pressure oil device
Flow to the pressure oil port of magnetic valve (now magnetic valve is in obtain electricity condition), then by the second control of magnetic valve
Mouth flows out, then flows to the second cover plate oil duct, so that spool up moves, when spool up moves to necessarily
During degree, the second hydraulic fluid port is connected with the axially extending bore of valve pocket, the pressure oil in differential hydro cylinder lower hydraulic pressure chamber
Flow to the second hydraulic fluid port, then flow to the upper hydraulic cavities of differential hydro cylinder, so that pile hammer moves downward.Pressure
A part of pressure oil stream second hydraulic fluid port of oil device, promotes pile hammer to move downward.
The present invention is additionally provided with the upper hydraulic cavities of connection and the trimmer valve of lower hydraulic pressure chamber, in pile hammer by dropping hammer to carrying hammer
During conversion, trimmer valve can make hydraulic cavities be connected with lower hydraulic pressure chamber.
Hydraulic pile system also includes that two the first accumulators, the first accumulator and the second hydraulic fluid port are connected.The
One accumulator is high-voltage energy storage device, and when pile hammer is up moved, the pressure oil of the first accumulator release flows to
The lower hydraulic pressure chamber of differential hydro cylinder, to promote pile hammer up to move, the second accumulator is transported downwards in pile hammer
Time dynamic, store excess pressure oil.Hydraulic pile system also includes the second accumulator, the second accumulator and first
Hydraulic fluid port is connected, and the second accumulator is low pressure accumulator, and the second accumulator switches to up move in pile hammer
Time, the oil pipe in hydraulic pile system can vibrate, and the second accumulator absorbs the energy of tubing vibration, prevents oil
Pipe high vibration.
The inserted valve of two-bit triplet of the present invention, uses bidirection press to control, and fast response time only needs less pressure
Power oil can control inserted valve, and commutation action is unrelated with the dynamic characteristics of circulation fluid, and meets differential system
Flow-control difference in system.
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 Essence 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 (10)
1. the inserted valve for hydraulic pile system, it is characterised in that: include controlling cover plate, spool, valve pocket,
Back-moving spring, spool fairlead；Described spool is divided into first paragraph spool, second segment valve from top to bottom
Core, the 3rd section of spool, described valve pocket be divided into from top to bottom first paragraph valve pocket, second segment valve pocket,
Three sections of valve pockets；Described spool is inserted in the axially extending bore of valve pocket, and first paragraph spool and first paragraph valve pocket are formed
Guiding cavity, spool fairlead is arranged on guiding cavity；Second segment valve pocket, spool fairlead, first paragraph
Spool, second segment spool surround the first sealed volume, second segment valve pocket, the 3rd section of valve pocket, second segment spool,
3rd section of spool surrounds the second sealed volume；Second segment valve pocket is provided with the first valve pocket oil duct and the second valve pocket oil
Road, the first valve pocket oil duct and the first sealed volume communicate, and the second valve pocket oil duct and the second sealed volume communicate；
3rd section of valve pocket is provided with the first hydraulic fluid port of multiple radial direction and the second hydraulic fluid port of multiple radial direction, and the first hydraulic fluid port is positioned at
The top of the second hydraulic fluid port；3rd section of spool is provided with the 3rd hydraulic fluid port of multiple radial direction, is provided with in the 3rd section of spool
Oil duct cavity, is provided with the back-moving spring cavity for placing back-moving spring in first paragraph spool, the 3rd hydraulic fluid port with
Oil duct cavity communicates；Described valve pocket is inserted in control cover plate, control to be provided with in cover plate the first cover plate oil duct and
Second cover plate oil duct, the first cover plate oil duct and the first valve pocket oil duct communicate, the second cover plate oil duct and the second valve pocket
Oil duct communicates；One end of back-moving spring connects with controlling cover plate, and the other end connects with second segment spool；
Moving upward with spool, the second hydraulic fluid port communicates with the axially extending bore of valve pocket, moves downward with spool, the
One hydraulic fluid port and the 3rd hydraulic fluid port communicate.
2. according to a kind of inserted valve for hydraulic pile system described in claim 1, it is characterised in that: described
The 3rd section of valve pocket be provided with the internal projection for stoping spool to move downward, the 3rd section of spool is provided with and internal projection
The outer lug adapted, internal projection is positioned at the following of the second hydraulic fluid port, and outer lug is positioned at the following of the 3rd hydraulic fluid port.
3. according to a kind of inserted valve for hydraulic pile system described in claim 1, it is characterised in that: described
Spool fairlead in be provided with the first seal.
4. according to a kind of inserted valve for hydraulic pile system described in claim 1, it is characterised in that: described
Second segment spool in be provided with the second seal.
5. according to a kind of inserted valve for hydraulic pile system described in claim 1, it is characterised in that: described
The 3rd section of spool in be provided with the 3rd seal, the 3rd seal is positioned at the top of the 3rd hydraulic fluid port.
6. according to a kind of inserted valve for hydraulic pile system described in claim 1, it is characterised in that: described
Oil duct cavity communicate with back-moving spring cavity, the pressure area of first paragraph spool upper surface and the 3rd section of spool
The pressure area of lower surface is equal.
7. a hydraulic pile system, it is characterised in that: include according to according to any one of claim 1 to 6
Inserted valve, also includes pile hammer, differential hydro cylinder, pressure oil device, oil return box, magnetic valve；Pile hammer
Piston rod through differential hydro cylinder, piston rod is provided with hydraulic piston, hydraulic piston and differential hydro cylinder shape
Hydraulic cavities and lower hydraulic pressure chamber on one-tenth；Pressure oil device respectively with lower hydraulic pressure chamber, the second hydraulic fluid port, the pressure of magnetic valve
Power hydraulic fluid port is connected, and lower hydraulic pressure chamber and the second hydraulic fluid port are connected, and upper hydraulic cavities is connected with the axially extending bore of valve pocket
Logical, the first hydraulic fluid port is connected with oil return box, and the oil return opening of magnetic valve is connected with oil return box, the of magnetic valve
One control mouth and the first cover plate oil duct are connected, and the second control mouth of magnetic valve and the second cover plate oil duct are connected；
Under magnetic valve is in power failure state, the pressure oil port of magnetic valve communicates with the first control mouth of magnetic valve,
The oil return opening of magnetic valve communicates with the second control mouth of magnetic valve；When magnetic valve be under electricity condition, electromagnetism
The pressure oil port of valve communicates with the second control mouth of magnetic valve, and the oil return opening of magnetic valve is controlled with the first of magnetic valve
Donsole communicates.
8. according to a kind of hydraulic pile system described in claim 7, it is characterised in that: described inserted valve has two
Individual.
9. according to a kind of hydraulic pile system described in claim 8, it is characterised in that: hydraulic pile system is also wrapped
Include two the first accumulators, the first accumulator and the second hydraulic fluid port to be connected.
10. according to a kind of hydraulic pile system described in claim 9, it is characterised in that: hydraulic pile system is also wrapped
Include the second accumulator, the second accumulator and the first hydraulic fluid port to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480824.2A CN105927606B (en) | 2016-06-23 | 2016-06-23 | A kind of hydraulic pile system and its inserted valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620308A (en) * | 2017-10-24 | 2018-01-23 | 江苏巨威机械有限公司 | guide rod type hydraulic pile hammer |
| CN108180299A (en) * | 2017-12-28 | 2018-06-19 | 邵立坤 | A kind of one-way flow valves |
| CN108518369A (en) * | 2018-03-20 | 2018-09-11 | 广东力源液压机械有限公司 | A kind of inserted valve big flow dynamical output control method and inserted valve |
| CN108953269A (en) * | 2018-08-24 | 2018-12-07 | 东莞海特帕沃液压科技有限公司 | A kind of inserted valve |
| CN109737112A (en) * | 2019-01-30 | 2019-05-10 | 广东科达洁能股份有限公司 | A kind of super-pressure dynamic valve |
| CN111022407A (en) * | 2019-12-30 | 2020-04-17 | 广东力源液压机械有限公司 | High-flow cartridge valve and control method thereof |
| CN116498614A (en) * | 2023-04-24 | 2023-07-28 | 通用技术集团大连机床有限责任公司 | Normally open type large-flux two-way cartridge valve |
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| US5882450A (en) * | 1995-07-14 | 1999-03-16 | Bridgestone/Firestone, Inc. | Radial tire/wheel assembly for high brake heat generated service |
| CN2643052Y (en) * | 2003-04-10 | 2004-09-22 | 中海油田服务股份有限公司 | Two-passage normal open and normal close cartridge valve |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620308A (en) * | 2017-10-24 | 2018-01-23 | 江苏巨威机械有限公司 | guide rod type hydraulic pile hammer |
| CN108180299A (en) * | 2017-12-28 | 2018-06-19 | 邵立坤 | A kind of one-way flow valves |
| CN108180299B (en) * | 2017-12-28 | 2019-06-18 | 江苏金晟元特种阀门股份有限公司 | A kind of one-way flow valves |
| CN108518369A (en) * | 2018-03-20 | 2018-09-11 | 广东力源液压机械有限公司 | A kind of inserted valve big flow dynamical output control method and inserted valve |
| CN108518369B (en) * | 2018-03-20 | 2023-09-29 | 广东力源液压机械有限公司 | Cartridge valve high-flow dynamic output control method and cartridge valve |
| CN108953269A (en) * | 2018-08-24 | 2018-12-07 | 东莞海特帕沃液压科技有限公司 | A kind of inserted valve |
| CN109737112A (en) * | 2019-01-30 | 2019-05-10 | 广东科达洁能股份有限公司 | A kind of super-pressure dynamic valve |
| CN111022407A (en) * | 2019-12-30 | 2020-04-17 | 广东力源液压机械有限公司 | High-flow cartridge valve and control method thereof |
| CN116498614A (en) * | 2023-04-24 | 2023-07-28 | 通用技术集团大连机床有限责任公司 | Normally open type large-flux two-way cartridge valve |
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Address after: Shunde District 528313 of Guangdong province Foshan City Chencun town industrial zone are Jianye Road No. 5 Applicant after: Guangdong Liyuan Hydraulic Machinery Company Ltd. Address before: Shunde District 528313 of Guangdong province Guangzhou City Chencun town industrial zone are Jianye Road No. 5 Applicant before: Guangdong Liyuan Hydraulic Machinery Company Ltd. |
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