CN205858821U - A kind of hydraulic pile system and inserted valve thereof - Google Patents
A kind of hydraulic pile system and inserted valve thereof Download PDFInfo
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- CN205858821U CN205858821U CN201620650168.1U CN201620650168U CN205858821U CN 205858821 U CN205858821 U CN 205858821U CN 201620650168 U CN201620650168 U CN 201620650168U CN 205858821 U CN205858821 U CN 205858821U
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Abstract
This utility model relates to a kind of inserted valve for hydraulic pile system, including controlling cover plate, spool, valve pocket, back-moving spring, spool fairlead；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, and spool fairlead is arranged on guiding cavity；Second segment valve pocket is provided with the first valve pocket oil duct and the second valve pocket oil duct, and 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；Being provided with oil duct cavity in 3rd section of spool, be provided with the back-moving spring cavity for placing back-moving spring in first paragraph spool, the 3rd hydraulic fluid port communicates with oil duct cavity；This utility model further relates to a kind of hydraulic pile system；Inserted valve of the present utility model can realize the connection of big flow, the purpose of fast response time, and hydraulic pile system oil-way of the present utility model is simple, can realize purpose of driving piles well, belong to the technical field of hydraulic pile.
Description
Technical field
This utility model relates to the technical field of hydraulic pile, particularly relates 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, this kind
The through-current capability of the first function position of valve halves relative to the through-current capability of two-way plug-in valve, the through-current capability and two of the second function position
The through-current capability of logical inserted valve is suitable, and the through-current capability of the first function position is less than the through-current capability of the second function position.Beat at hydraulic pressure
In pile monkey hydraulic system, using Differential Control oil circuit so that when oil cylinder is up, cylinder upper cavity oil oil extraction is stable, when under oil cylinder
During row, need to connect the upper and lower cavity of oil cylinder, and linear speed reaches more than 5m/s so that during upper and lower cavity connection, pass through control valve
Flow become several times of increases.Switching to reach the control of big flow, general employing electromagnetic valve and the combination of common inserted valve are formed
Control valve group, thus carry out commutation switching, but so certainly will add the complexity of oil circuit, reduce the reliable of system simultaneously
Property.After Multistage Control so that control response speed slow, so that whole hydraulic pile system needs higher strike
Frequency.
Utility model content
For technical problem present in prior art, the purpose of this utility model is: provide a kind of big flow, response speed
Spend the fast inserted valve for hydraulic pile system；
Another object of the present utility model is to provide a kind of hydraulic pile system, and this hydraulic pile system oil-way is simple,
Purpose of driving piles can be realized well.
In order to achieve the above object, this utility model adopts the following technical scheme that
A kind of inserted valve for hydraulic pile system, including controlling cover plate, spool, valve pocket, back-moving spring, spool guiding
Set；Described spool is divided into first paragraph spool, second segment spool, the 3rd section of spool from top to bottom, and described valve pocket is by upper
Down it is divided into first paragraph valve pocket, second segment valve pocket, the 3rd section of valve pocket；Described spool is inserted in the axially extending bore of valve pocket,
First paragraph spool and first paragraph valve pocket are formed and guide cavity, and 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 valve
Core, the 3rd section of spool surround 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 pocket is provided with many
First hydraulic fluid port of individual radial direction 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；On 3rd section of spool
It is provided with the 3rd hydraulic fluid port of multiple radial direction, is provided with oil duct cavity in the 3rd section of spool, is provided with for placing reset in first paragraph spool
The back-moving spring cavity of spring, the 3rd hydraulic fluid port communicates with oil duct cavity；Described valve pocket is inserted in control cover plate, controls in cover plate
Be 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 to communicate, the second cover plate oil duct with
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 first hydraulic fluid port and
3rd hydraulic fluid port communicates.
When input pressure oil in the first cover plate oil duct, pressure oil enters the first valve pocket oil duct from the first cover plate oil duct,
Enter back into the first sealed volume；Pressure oil in first sealed volume applies pressure to the upper surface of second segment spool, makes spool
Moving downward, the back-moving spring being simultaneously in compressive state also promotes spool to move downward；Meanwhile, second sealed volume
Oil flows out the second valve pocket oil duct, then flows out the second cover plate oil duct；Moving downward with spool, the first hydraulic fluid port, the 3rd hydraulic fluid port, oil duct are empty
Communicating between chamber, pressure oil is owing to being 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, the 3rd section of valve
Core is provided with the outer lug adapted with internal projection, and internal projection is positioned at the following of the second hydraulic fluid port, and outer lug is positioned under the 3rd hydraulic fluid port
Limit.Spool is made to have moved downward an extreme position.
Further: in described spool fairlead, be provided with the first sealing member.First sealing member can prevent the first sealing
Pressure oil in cavity volume is revealed.
Further: in described second segment spool, be provided with the second sealing member.Second sealing member can intercept the first sealing
Pressure oil in cavity volume and the second sealed volume is connected.
Further: being provided with the 3rd sealing member in the 3rd section of described spool, the 3rd sealing member is positioned at the 3rd hydraulic fluid port
Top.3rd sealing member can prevent the pressure oil in the second sealed volume from revealing.
Further: described oil duct cavity communicates with back-moving spring cavity, the pressure face of first paragraph spool upper surface
Long-pending equal with the pressure area of the 3rd section of spool lower surface.Can ensure that the top of spool and the pressure of bottom are 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, oil sump tank, electromagnetism
Valve；The piston rod of pile hammer passes differential hydro cylinder, and piston rod is provided with hydraulic piston, and hydraulic piston is formed with differential hydro cylinder
Upper hydraulic cavities and lower hydraulic pressure chamber；Pressure oil device is connected with lower hydraulic pressure chamber, the second hydraulic fluid port, the pressure oil port of electromagnetic valve respectively,
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, and the first hydraulic fluid port is connected with oil sump tank
Logical, the oil return opening of electromagnetic valve is connected with oil sump tank, and the first control mouth of electromagnetic valve and the first cover plate oil duct are connected, electromagnetic valve
Second control mouth and the second cover plate oil duct be connected；
Under electromagnetic valve is in power failure state, the pressure oil port of electromagnetic valve communicates with the first control mouth of electromagnetic valve, electromagnetism
The oil return opening of valve communicates with the second control mouth of electromagnetic valve；When electromagnetic valve be under electricity condition, the pressure oil port of electromagnetic valve with
Second control mouth of electromagnetic valve communicates, and the oil return opening of electromagnetic valve communicates with the first control mouth of electromagnetic valve.
When using this hydraulic pile system to make pile hammer up move, a part of pressure oil of pressure oil device flows into differential
The lower hydraulic pressure chamber of hydraulic cylinder, makes pile hammer up move；A part of pressure oil of pressure oil device flows to electromagnetic valve (now electromagnetism
Valve is in power failure state) pressure oil port, then flowed out by the first control mouth of electromagnetic valve, then flow to the first cover plate oil duct, thus
Making spool down move, when spool down moves to a certain degree, the first hydraulic fluid port and the 3rd hydraulic fluid port are connected, differential hydro cylinder
Pressure oil in upper hydraulic cavities flows to the oil duct cavity of spool, then flow to oil sump tank from the 3rd hydraulic fluid port and the first hydraulic fluid port.
Further: described inserted valve has two.
Further: hydraulic pile system also includes that two the first accumulators, the first accumulator and the second hydraulic fluid port are connected
Logical.
Further: hydraulic pile system also includes that the second accumulator, the second accumulator and the first hydraulic fluid port are connected.
Generally speaking, this utility model has the advantage that
1. when this utility model 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.
When first hydraulic fluid port the most of the present utility model and the 3rd hydraulic fluid port are connected, it is achieved the pressure oil circulation of relatively low discharge.
3. the volume of this utility model the first sealed volume and the second sealed volume is less, it is only necessary to less both can be quick
Response.
4. this utility model can ensure that the top of spool and the pressure of bottom are equal, and discharge pressure is to spool
Interference, it is ensured that spool having stable behavior.
Accompanying drawing explanation
Fig. 1 is this utility model inserted valve spool 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 this utility model inserted valve spool structural representation when moving upward.
Fig. 5 is this utility model hydraulic pile system structural representation when making pile hammer up move.
Fig. 6 is this utility model hydraulic pile system 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 spool, and 5 is second
Section spool, 6 is the 3rd section of spool, and 7 is spool fairlead, and 8 is back-moving spring, and 9 is the first sealing member, and 10 is the second sealing member,
11 is the 3rd sealing member, and 12 is the first sealed volume, and 13 is the second sealed volume, and 14 is the first valve pocket oil duct, and 15 is the second valve
Set oil duct, 16 is the first cover plate oil duct, and 17 is the second cover plate oil duct, and 18 is back-moving spring cavity, and 19 is oil duct cavity, and 20 is valve
The axially extending bore of set, 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 of valve
The internal projection of set, 26 is the outer lug of the 3rd section of spool, and 27 is internal projection step, and 28 is outer lug step, and 29 fill for pressure oil
Putting, 30 is oil sump tank, and 31 is the hammer core of pile hammer, and 32 is the piston rod of pile hammer, and 33 is hydraulic piston, and 34 is differential hydro cylinder
Upper hydraulic cavities, 35 is the lower hydraulic pressure chamber of differential hydro cylinder, and 36 is trimmer valve, and 37 is the pressure oil port of electromagnetic valve, and 38 is electromagnetism
The oil return opening of valve, 39 is the first control mouth of electromagnetic valve, and 40 is the second control mouth of electromagnetic valve, and 41 is the first accumulator, and 42 are
Second accumulator.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in more 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 spool, second segment spool, the 3rd section of valve from top to bottom
Core, described valve pocket is divided into first paragraph valve pocket, second segment valve pocket, the 3rd section of valve pocket from top to bottom.Valve pocket is provided with the most logical
Hole, this axially extending bore is through to the upper end of valve pocket from the lower end of valve pocket, and the outer wall of second segment spool is provided with outside outer lug platform
Rank, more than the upper surface of this outer lug step are first paragraph spool, are the 3rd section of spool below the lower surface of outer lug step, valve
The inwall of core is provided with inside internal projection step, and 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. the cross section of the inner chamber that first paragraph valve pocket is formed
Long-pending maximum, the cross-sectional area of the inner chamber that second segment valve pocket is formed takes second place, the cross-sectional area of the 3rd section of inner chamber that valve pocket is formed
Minimum.The outer wall of valve pocket is pointed at the center of the i.e. valve pocket of outwardly direction described herein, the i.e. valve pocket of described inward direction
Outer wall 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
Set is formed and guides cavity, and spool fairlead is arranged on guiding cavity；The inwall of second segment valve pocket, the lower end of spool fairlead
Face, the outer wall of first paragraph spool, the upper surface (i.e. the upper surface of outer lug step) of second segment spool surround the first sealed volume,
The inwall of second segment valve pocket, the 3rd section of upper surface of valve pocket, the lower surface (i.e. the lower surface of outer lug step) of second segment spool,
The outer wall of the 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 duct,
First valve pocket oil duct and the first sealed volume communicate, and the second valve pocket oil duct and the second sealed volume communicate.Set on 3rd section of valve pocket
Having the first hydraulic fluid port of multiple radial direction 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
It is uniformly distributed along the excircle side of the 3rd section of valve pocket with the second hydraulic fluid port, communicates between each first hydraulic fluid port, Mei Ge
Communicate between two hydraulic fluid ports.3rd section of spool is provided with the 3rd hydraulic fluid port of multiple radial direction, and the 3rd hydraulic fluid port is along the 3rd section of spool
Circumference side be uniformly distributed；It is provided with oil duct cavity in 3rd section of spool, is provided with for placing back-moving spring in first paragraph spool
Back-moving spring cavity, the 3rd hydraulic fluid port communicates with oil duct cavity, and back-moving spring cavity and oil duct cavity communicate.Described valve
It is inserted in control cover plate, in controlling cover plate, is provided with the first cover plate oil duct and the second cover plate oil duct, the first cover plate oil duct and first
Valve pocket oil duct communicates, and the second cover plate oil duct and the second valve pocket oil duct communicate.Controlling cover plate is internal cavity structure, the one of back-moving spring
The upper wall held and control cover plate internal cavity connects, and the other end connects with the upper surface of internal projection step, i.e. the other end and second segment
Spool connects.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 and insert
Dress valve.
When input pressure oil in the first cover plate oil duct, pressure oil enters the first valve pocket oil duct from the first cover plate oil duct,
Enter back into the first sealed volume；Pressure oil in first sealed volume is to upper surface (outer lug step upper of second segment spool
End face) apply pressure, make spool move downward, the back-moving spring being simultaneously in compressive state also promotes spool to move downward；With
This simultaneously, 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 (i.e. with spool
When spool moves downwardly to relevant position), communicate between the first hydraulic fluid port, the 3rd hydraulic fluid port, oil duct cavity, pressure oil is due to quilt
3rd section of spool stops, it is impossible to enter oil duct cavity 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 circulates, and 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 oil duct from the second cover plate oil duct,
Enter back into the second sealed volume；Pressure oil in second sealed volume is to the lower surface of second segment spool (under outer lug step
End face) apply pressure, make spool move upward, meanwhile, the oil of the first sealed volume flows out the first valve pocket oil duct, then flows out
First cover plate oil duct；Moving upward (when i.e. spool moves up to relevant position) with spool, the second hydraulic fluid port is axial with valve pocket
Through hole communicates, and the lower end of valve pocket axially extending bore communicates with oil duct cavity, and pressure oil is owing to being stopped, no by the 3rd section of spool
Oil duct cavity can be entered from the first hydraulic fluid port.Now, the axially extending bore of the second hydraulic fluid port and valve pocket communicates, it is allowed to the pressure oil of big flow
Circulation.
Shown in Fig. 2, the 3rd section of described valve pocket is provided with the internal projection for stoping spool to move downward, the 3rd section of valve
Core is provided with the outer lug adapted with internal projection, and internal projection is positioned at the following of the second hydraulic fluid port, and outer lug is positioned under the 3rd hydraulic fluid port
Limit.Make spool move downward an extreme position, now also function to sealing function.It is provided with first close in described spool fairlead
Sealing, spool passes spool fairlead and the first sealing member, and the first sealing member can prevent the pressure oil in the first sealed volume from letting out
Dew.Being provided with the second sealing member in described second segment spool, the second sealing member can intercept the first sealed volume and second and seal appearance
The pressure oil of intracavity is connected.Being provided with the 3rd sealing member in the 3rd section of described spool, the 3rd sealing member is positioned at the 3rd hydraulic fluid port
Top, the 3rd sealing member 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 oil acts on
The area of the area of first paragraph spool upper surface or the 3rd section of spool lower surface is referred to as pressure area, owing to oil duct cavity is with multiple
Position spring plenum length communicates, and pressure oil can be flowed to back-moving spring cavity by oil duct cavity, so can ensure that spool is
The pressure of upper end and bottom 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, oil sump tank, electromagnetism
Valve.Described inserted valve has two.Pile hammer includes that piston rod, hydraulic piston and hammer core, hammer core are arranged on the lower end of piston rod,
The piston rod of pile hammer passes differential hydro cylinder, and piston rod is provided with hydraulic piston, and hydraulic piston and differential hydro cylinder are formed
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 of electromagnetic valve
Mouthful being connected, the second hydraulic fluid port of two inserted valves 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 is connected with the axially extending bore of two inserted valve valve pockets, and the first hydraulic fluid port of two inserted valves is connected with oil sump tank,
First hydraulic fluid port of two inserted valves is connected to lead to, and the oil return opening of electromagnetic valve is connected with oil sump tank, the first control of electromagnetic valve
Mouth is connected with the first cover plate oil duct, and the second control mouth of electromagnetic valve and the second cover plate oil duct are connected.
Under electromagnetic valve is in power failure state, the pressure oil port of electromagnetic valve communicates with the first control mouth of electromagnetic valve, electromagnetism
The oil return opening of valve communicates with the second control mouth of electromagnetic valve；When electromagnetic valve be under electricity condition, the pressure oil port of electromagnetic valve with
Second control mouth of electromagnetic valve communicates, and the oil return opening of electromagnetic valve communicates with the first control mouth of electromagnetic valve.
Shown in Fig. 1 and Fig. 5, the solid dot in Fig. 5 represents what each oil circuit at this solid dot was connected to lead to.Use
When this hydraulic pile system makes pile hammer up move, a part of pressure oil of pressure oil device flows into the lower liquid of differential hydro cylinder
Pressure chamber, makes pile hammer up move；A part of pressure oil of pressure oil device flows to electromagnetic valve, and (now electromagnetic valve is in dead electricity shape
State) pressure oil port, then flowed out by the first control mouth of electromagnetic valve, then flow to the first cover plate oil duct, so that spool is down transported
Dynamic, when spool down moves to a certain degree, the first hydraulic fluid port and the 3rd hydraulic fluid port are connected, on differential hydro cylinder in hydraulic cavities
Pressure oil flows to the oil duct cavity of spool, then flow to oil sump tank 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 what each oil circuit at this solid dot was connected to lead to.Use
When this hydraulic pile system makes pile hammer down move, a part of pressure oil of pressure oil device flows to electromagnetic valve (now electromagnetism
Valve is in obtain electricity condition) pressure oil port, then flowed out by the second control mouth of electromagnetic valve, then flow to the second cover plate oil duct, thus
Making spool up move, when spool up moves to a certain degree, the second hydraulic fluid port is connected with the axially extending bore of valve pocket, differential
Pressure oil in hydraulic cylinder lower hydraulic pressure chamber flows to the second hydraulic fluid port, then flows to the upper hydraulic cavities of differential hydro cylinder, so that pile hammer
Move downward.A part of pressure oil stream second hydraulic fluid port of pressure oil device, promotes pile hammer to move downward.
This utility model 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 turn
When changing, 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.First energy storage
Device 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 liquid of differential hydro cylinder
Pressure chamber, to promote pile hammer up to move, the second accumulator, when pile hammer moves downward, stores excess pressure oil.Hydraulic pressure is beaten
Stake system also includes that the second accumulator, the second accumulator and the first hydraulic fluid port are connected, and the second accumulator is low pressure accumulator, second
Accumulator is when pile hammer switches to up move, and the oil pipe in hydraulic pile system can vibrate, and the second accumulator absorbs oil pipe
The energy of vibration, prevents oil pipe high vibration.
The inserted valve of this utility model two-bit triplet, uses bidirection press to control, and fast response time only needs less pressure oil
Inserted valve can be controlled, and commutation action is unrelated with the dynamic trait of circulation fluid, and meet the flow-control in differential system
Difference.
Above-described embodiment is this utility model preferably embodiment, but embodiment of the present utility model is not by above-mentioned
The restriction of embodiment, other any without departing from the change made under spirit of the present utility model and principle, modify, replace
In generation, combine, simplify, all should be the substitute mode of equivalence, within being included in protection domain of the present utility model.
Claims (10)
1. the inserted valve for hydraulic pile system, it is characterised in that: include controlling cover plate, spool, valve pocket, reset bullet
Spring, spool fairlead；Described spool is divided into first paragraph spool, second segment spool, the 3rd section of spool from top to bottom, described
Valve pocket be 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 axle of valve pocket
In through hole, first paragraph spool and first paragraph valve pocket are formed and guide cavity, and 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, the 3rd section of spool surround the second sealed 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 the first sealed volume communicate, and the second valve pocket oil duct and the second sealed volume communicate；3rd section of valve pocket
Being provided with the first hydraulic fluid port of multiple radial direction 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；3rd
Section 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, be provided with in first paragraph spool for
Placing the back-moving spring cavity of back-moving spring, the 3rd hydraulic fluid port communicates with oil duct cavity；Described valve pocket is inserted in control cover plate, control
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 cover plate processed to communicate, the second lid
Leaf fat road 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 first hydraulic fluid port and the 3rd
Hydraulic fluid port communicates.
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
Valve pocket is provided with the internal projection for stoping spool to move downward, and the 3rd section of spool is provided with the outer lug adapted with internal projection, interior
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 is led
It is provided with the first sealing member in set.
4. according to a kind of inserted valve for hydraulic pile system described in claim 1, it is characterised in that: described second segment
The second sealing member it is provided with in spool.
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
Being provided with the 3rd sealing member in spool, the 3rd sealing member 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 is empty
Chamber communicates with back-moving spring cavity, the pressure area phase of the pressure area of first paragraph spool upper surface and the 3rd section of spool lower surface
Deng.
7. a hydraulic pile system, it is characterised in that: include according to the inserted valve according to any one of claim 1 to 6, also
Including pile hammer, differential hydro cylinder, pressure oil device, oil sump tank, electromagnetic valve；The piston rod of pile hammer passes differential hydro cylinder,
Piston rod is provided with hydraulic piston, and hydraulic piston and differential hydro cylinder form hydraulic cavities and lower hydraulic pressure chamber；Pressure oil device divides
Not being connected with lower hydraulic pressure chamber, the second hydraulic fluid port, the pressure oil port of electromagnetic valve, lower hydraulic pressure chamber and the second hydraulic fluid port are connected, upper hydraulic pressure
Chamber is connected with the axially extending bore of valve pocket, and the first hydraulic fluid port is connected with oil sump tank, and the oil return opening of electromagnetic valve is connected with oil sump tank,
First control mouth of electromagnetic valve and the first cover plate oil duct are connected, and the second control mouth of electromagnetic valve and the second cover plate oil duct are connected
Logical；
Under electromagnetic valve is in power failure state, the pressure oil port of electromagnetic valve communicates with the first control mouth of electromagnetic valve, electromagnetic valve
Oil return opening communicates with the second control mouth of electromagnetic valve；When electromagnetic valve be under electricity condition, the pressure oil port of electromagnetic valve and electromagnetism
Second control mouth of valve communicates, and the oil return opening of electromagnetic valve communicates with the first control mouth of electromagnetic valve.
8. according to a kind of hydraulic pile system described in claim 7, it is characterised in that: described inserted valve has two.
9. according to a kind of hydraulic pile system described in claim 8, it is characterised in that: hydraulic pile system also includes two
One accumulator, the first accumulator and the second hydraulic fluid port are connected.
10. according to a kind of hydraulic pile system described in claim 9, it is characterised in that: hydraulic pile system also includes second
Accumulator, the second accumulator and the first hydraulic fluid port are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620650168.1U CN205858821U (en) | 2016-06-23 | 2016-06-23 | A kind of hydraulic pile system and inserted valve thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620650168.1U CN205858821U (en) | 2016-06-23 | 2016-06-23 | A kind of hydraulic pile system and inserted valve thereof |
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| Publication Number | Publication Date |
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| CN205858821U true CN205858821U (en) | 2017-01-04 |
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| CN201620650168.1U Active CN205858821U (en) | 2016-06-23 | 2016-06-23 | A kind of hydraulic pile system and inserted valve thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927606A (en) * | 2016-06-23 | 2016-09-07 | 广东力源液压机械有限公司 | Hydraulic piling system and cartridge valve thereof |
| CN112555454A (en) * | 2020-12-15 | 2021-03-26 | 浙江银轮机械股份有限公司 | Bypass valve and fluid pipeline structure |
-
2016
- 2016-06-23 CN CN201620650168.1U patent/CN205858821U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927606A (en) * | 2016-06-23 | 2016-09-07 | 广东力源液压机械有限公司 | Hydraulic piling system and cartridge valve thereof |
| CN112555454A (en) * | 2020-12-15 | 2021-03-26 | 浙江银轮机械股份有限公司 | Bypass valve and fluid pipeline structure |
| CN112555454B (en) * | 2020-12-15 | 2023-08-11 | 浙江银轮机械股份有限公司 | Bypass valve and fluid pipeline structure |
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Address after: Shunde District 528313 of Guangdong province Foshan City Chencun town industrial zone are Jianye Road No. 5 Patentee 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 Patentee before: Guangdong Liyuan Hydraulic Machinery Company Ltd. |