CN202543938U - Hydraulic mechanism for eccentricity-adjustable hydraulic vibratory pile driver-extractor - Google Patents
Hydraulic mechanism for eccentricity-adjustable hydraulic vibratory pile driver-extractor Download PDFInfo
- Publication number
- CN202543938U CN202543938U CN201220159951XU CN201220159951U CN202543938U CN 202543938 U CN202543938 U CN 202543938U CN 201220159951X U CN201220159951X U CN 201220159951XU CN 201220159951 U CN201220159951 U CN 201220159951U CN 202543938 U CN202543938 U CN 202543938U
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- hxf
- sequence
- outlet
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model discloses a hydraulic mechanism for an eccentricity-adjustable hydraulic vibratory pile driver-extractor. Two sequence valves, an electro-hydraulic directional valve and a differential pressure directional valve are used for sequentially finishing sequential control processes such as a hydraulic vibratory hammer starting process, a zero-eccentricity adjustment process, an oil make-up process, a joint starting process for two hydraulic motors, a vibratory pile driving-extraction process, a zero-eccentricity adjustment process, an oil make-up process and a process of stopping the rotation of the two hydraulic motors and stopping the action of all eccentric blocks during a failure by changing the oil pressure of a control system. The advantage that the pressure and flow direction of liquid can be easily controlled by hydraulic transmission is fully utilized, so that zero eccentricity and maximum eccentricity can be switched not completely dependent on the practical experiences of site technical personnel, and field pile driving and extraction operation is facilitated.
Description
Technical field
The utility model relates to a kind of hydraulic mechanism, particularly a kind of adjustable square hydraulic vibration extracting-driving pile machine hydraulic mechanism.
Background technology
The hydraulic vibration extracting-driving pile machine is by hydraulic-driven; Do to rotate in opposite directions forming periodic exciting force through two groups of eccentric blocks, make stake produce a vertical up-down vibration, cause stake and pile peripheral earth to be in the forced vibration state with speed; Make pile peripheral earth liquefy; Penetrating resistance reduces greatly, so under deadweight of pile monkey and pile body and the effect of pile monkey exciting force, overcome inertia resistance and sink in the soil gradually.Vibrohammer is accomplished the pile sinking operation with mode of vibration, thereby can inevitably vibration be passed to pile frame and surrounding environment.Starting and the shutdown stage especially, vibration frequency will be passed through pile frame resonance frequency district, and (6～12HZ), the resonance of pile frame will cause entire machine high vibration and huge noise, can have a strong impact on construction operation environment and equipment life.Theory according to mechanical oscillation can be known, if the eccentric throw of eccentric block is zero, then amplitude also is zero.Thereby if can start and to make the eccentric throw of eccentric block be zero the shutdown stage, can make the vibrator amplitude is zero, just can realize that pile frame does not have resonance and constructs.Patent " hydraulic vibration extracting-driving pile machine transfer moment device " (patent No. CN200520050203.8) thus proposed to adopt eccentric drive hydraulic oil cylinder driving eccentric block to reach the scheme of transferring the square purpose first; But the switching controls of zero eccentricity and maximum eccentric square relies on technician's construction experience fully in the scheme; And serious vibration and noise still can appear in the stake machine when some eccentric drive oil cylinders block, thereby have a strong impact on its application and popularization on existing hydraulic vibration driver.
The utility model content
The purpose of the utility model be to overcome the deficiency of prior art and provide a kind of simple in structure, effectively alleviate the adjustable square hydraulic vibration extracting-driving pile machine hydraulic mechanism of labor strength.
A kind of adjustable square hydraulic vibration extracting-driving pile machine hydraulic mechanism comprises sequence valve XF
2, sequence valve XF
1, electro-hydraulic reversing valve HXF
1With pressure reduction reversal valve HXF
4, said sequence valve XF
2Outlet and one way valve DF
5With one way valve DF
6Connect said sequence valve XF
2Inlet and control system pressure oil p
kCommunicate said sequence valve XF
2Outside control mouth and solenoid operated directional valve HXF
3A
3Mouth is connected; Said sequence valve XF
1Outside control mouth directly with control system pressure oil p
kConnect said sequence valve XF
1Outlet and electro-hydraulic reversing valve HXF
1The hydraulic control mouth connect said sequence valve XF
1Outlet through choke valve JF
2, connect with fuel tank behind the oil filter LQ; Said electro-hydraulic reversing valve HXF
1Inlet A
1With cartridge valve CF
1Control chamber C
1Pass through a choke valve JF after the parallel connection again
3With system pressure oil p
sCommunicate said cartridge valve CF
1Inlet D
1With system pressure oil p
sCommunicate said cartridge valve CF
1Outlet E
1Behind oil filter LQ, communicate said electro-hydraulic reversing valve HXF with fuel tank
1Outlet B
1With cartridge valve CF
1Outlet E
1Connect; Said pressure reduction reversal valve HXF
4Two hydraulic control mouth G, H respectively with eccentric drive oil cylinder PG
1, PG
2Rod end chamber communicate said pressure reduction reversal valve HXF
4Inlet A
4Directly with control system pressure oil p
kConnect said pressure reduction reversal valve HXF
4Outlet B
4Through choke valve JF
4The back communicates with fuel tank.
In the utility model, said sequence valve XF
1With sequence valve XF
2Be the external control formula sequence valve that leaks.
The employing such scheme uses the sequential control hydraulic cylinder to come to drive eccentric block flexibly and goes back to zero-bit and maximum eccentric position, has avoided pile frame in the startup and the violent covibration in the stage of shutdown, and system architecture is simple, reliability is high; Make full use of hydraulic drive and be easy to advantage that fluid pressure and flow direction are controlled, make the practical experience that relies on the field technician no longer fully operate the switching of zero eccentricity and maximum eccentric square, convenient on-the-spot heavy pile pulling operation.
Description of drawings
Fig. 1 is the hydraulic control schematic diagram of the utility model.
Fig. 2 is the utility model sequence valve XF
2And pressure reduction reversal valve HXF
4Control principle figure.
Fig. 3 is the utility model sequence valve XF
1And electro-hydraulic reversing valve HXF
1Control principle figure.
The specific embodiment
Below in conjunction with accompanying drawing, specify the specific embodiment of the utility model.
Like Fig. 1,2, shown in 3, a kind of adjustable square hydraulic vibration extracting-driving pile machine hydraulic mechanism, two hydraulic motor M
1, M
2Be by two hydraulic pump B
1, B
2Respectively through one way valve DF
1, one way valve DF
2, the system pressure oil p that exports after the parallel connection again
sDrive two eccentric drive oil cylinder PG
1, PG
2Cylinder barrel respectively with hydraulic motor M
1, M
2The gyroaxis that drives is fastenedly connected two eccentric drive oil cylinder PG
1, PG
2Enclosed cavity respectively with Synchronization Control oil cylinder TG
1, TG
2Rodless cavity communicate two Synchronization Control oil cylinder TG
1, TG
2The rod chamber parallel connection after, and by hydraulic pump B
3Output is also passed through solenoid operated directional valve HXF
3, cartridge valve CF
2And CF
3External control system pressure oil p
kCommunicate cartridge valve CF
2Control chamber C
2With cartridge valve CF
3Entrance cavity D
3Back and solenoid operated directional valve HXF are in parallel
3A
3Mouth is connected cartridge valve CF
2Entrance cavity D
2With cartridge valve CF
3Control chamber C
3After being in parallel again with solenoid operated directional valve HXF
3B
3Mouth is connected cartridge valve CF
2Outlet plenum E
2With cartridge valve CF
3Outlet plenum E
3After the parallel connection again with two Synchronization Control oil cylinder TG
1, TG
2Rod chamber communicate, comprise sequence valve XF
2, sequence valve XF
1, electro-hydraulic reversing valve HXF
1With pressure reduction reversal valve HXF
4, said sequence valve XF
2Outlet and one way valve DF
5With one way valve DF
6Connect said one way valve DF
5With eccentric drive oil cylinder PG
1Connect said one way valve DF
6With eccentric drive oil cylinder PG
2Connect said sequence valve XF
2Inlet and control system pressure oil p
kCommunicate said sequence valve XF
2Outside control mouth and solenoid operated directional valve HXF
3A
3Mouth is connected; Said sequence valve XF
1Outside control mouth directly with control system pressure oil p
kConnect said sequence valve XF
1Outlet and electro-hydraulic reversing valve HXF
1The hydraulic control mouth connect said sequence valve XF
1Outlet through choke valve JF
2, connect with fuel tank behind the oil filter LQ; Said electro-hydraulic reversing valve HXF
1Inlet A
1With cartridge valve CF
1Control chamber C
1Pass through a choke valve JF after the parallel connection again
3With system pressure oil p
sCommunicate cartridge valve CF
1Inlet D
1With system pressure oil p
sCommunicate cartridge valve CF
1Outlet E
1Behind oil filter LQ, communicate said electro-hydraulic reversing valve HXF with fuel tank
1Outlet B
1With cartridge valve CF
1Outlet E
1Connect; Said pressure reduction reversal valve HXF
4Two hydraulic control mouth G, H respectively with eccentric drive oil cylinder PG
1, PG
2Rod end chamber communicate said pressure reduction reversal valve HXF
4Inlet A
4Directly with control system pressure oil p
kConnect said pressure reduction reversal valve HXF
4Outlet B
4Through choke valve JF
4The back communicates with fuel tank.This mechanism adopts two sequence valves and an electro-hydraulic reversing valve and a pressure reduction reversal valve; Through changing the control system oil pressure, accomplish hydraulic vibration driver successively and start that---------two hydraulic motors interlocks start, and------all eccentric blocks stop sequence control procedures such as action to the heavy pile pulling process of vibration to the repairing process to zero eccentricity adjustment process when zero two hydraulic motor stalls of eccentricity adjustment process---repairing process---and fault.
The detailed process that this hydraulic mechanism is realized is following:
1. before starting shooting, the equal dead electricity of 1YA～4YA, solenoid operated directional valve HXF
2, HXF
3All be in meta, reversal valve HXF
1Be in right position, thus cartridge valve CF
1Be opened, thereby hydraulic pump B
1, B
2The hydraulic oil that pumps is through cartridge valve CF
1Off-load.So hydraulic pump starts back two hydraulic motors and can not rotate.It is original state for sequential control.
2. after hydraulic pump starts, coil 1YA, 3YA successively electric, thereby solenoid operated directional valve HXF
2, HXF
3Successively be placed in position, a left side.As solenoid operated directional valve HXF
3When being in position, a left side, cartridge valve CF
3Be opened cartridge valve CF
2Be in closed condition, then hydraulic pump B
3The control oil that pumps is through reversal valve HXF
3, cartridge valve CF
3Get into Synchronization Control oil cylinder TG
1, TG
2, two oil cylinder TG
1, TG
2Size identical, and both piston rods adopt again and are rigidly connected, thereby to two eccentric drive oil cylinder PG
1, PG
2Import isopyknic fluid, promote PG respectively
1, PG
2Interior piston is synchronized with the movement, and drives eccentric block and gets into zero eccentric position simultaneously.
3. after eccentric block arrives zero eccentric position, two eccentric drive oil cylinder PG
1, PG
2The piston stop motion, fluid stops to flow, its pressure rises rapidly, in case rise to sequence valve XF
2Set pressure, sequence valve XF
2Just be opened, controlled pressure oil passes through DF
5, DF
6Give two eccentric drive oil cylinder PG
1, PG
2Repairing.In the repairing process, control-oil pressure will further raise.
4. the pressure when control oil is elevated to sequence valve XF
1The set pressure value time, sequence valve XF
1Just be opened.Then control oil is through solenoid operated directional valve HXF
2, sequence valve XF
1, will make reversal valve HXF
1Place position, a left side, cartridge valve CF
1Be closed hydraulic pump B
1, B
2Stop off-load, system pressure oil p
sGet into hydraulic motor M
1, M
2, two hydraulic motors no back pressure under zero eccentricity starts, and vibrator will not produce vibration this moment.
5. as two hydraulic motor M
1, M
2After the startup, coil 3YA dead electricity, 4YA get electric, solenoid operated directional valve HXF
3Be placed in right position, cartridge valve CF
2Be opened, cartridge valve CF
3Be closed two control oil cylinder TG
1, TG
2Rod chamber communicate with fuel tank.At this moment, the eccentric block exciting force that produces of revolution and spring force make two eccentric drive oil cylinder PG
1, PG
2Fluid in the enclosed cavity flows back to fuel tank, eccentric block thereby get into the maximum eccentric position rapidly, and vibrator begins vibration this moment.Then, coil 1YA, 4YA be dead electricity, solenoid operated directional valve HXF
2, HXF
3All be in meta.Guaranteed the pile vibrosinking of vibrating hammer in the maximum eccentric position.
6. in the time of after accomplishing a construction of prefabricated piles, need stopping the pile sinking operation, coil 2YA gets electric earlier, solenoid operated directional valve HXF
2Place right position, then coil 3YA again electric, solenoid operated directional valve HXF
3Be in position, a left side, cartridge valve CF
3Be opened cartridge valve CF
2Be in closed condition, control oil is able to promote two control oil cylinder TG
1, TG
2Interior piston, thus make eccentric block get back to zero eccentric position.
7. after eccentric block reaches zero eccentric position, two eccentric drive oil cylinder PG
1, PG
2All stop motions of piston, fluid stops to flow, its pressure rises rapidly, in case rise to sequence valve XF
2Setting pressure, sequence valve XF
2Promptly be opened, controlled pressure oil is through two one way valve DF
5, DF
6Respectively to two eccentric drive oil cylinder PG
1, PG
2Repairing.In the repairing process, control-oil pressure can further raise.
8. the pressure when control oil is elevated to sequence valve XF
1The set pressure value time, sequence valve XF
1Just be opened.Electro-hydraulic reversing valve HXF
1The hydraulic control mouth through sequence valve XF
1, reversal valve HXF
2Connect electro-hydraulic reversing valve HXF with fuel tank
1Return to right position, cartridge valve CF
1Be opened, thereby hydraulic pump B
1, B
2Through cartridge valve CF
1Off-load.Thereby make two hydraulic motor M
1, M
2Stall.
9. as any eccentric drive oil cylinder PG
1, PG
2Piston rod driving eccentric block in the process of extrapolation during because of unexpected blocking, the control chamber oil pressure that block the eccentric drive oil cylinder will produce the suction sky and be inclined to the pressure reduction reversal valve HXF that then is attached thereto
4The pressure of two hydraulic control mouths will be no longer equal, pressure reduction reversal valve HXF
4Promptly be opened, controlled pressure oil is through reversal valve HXF
4Take back fuel tank, all stop motions of all eccentric blocks can show this failure cause through electronic warning, get into the troubleshooting stage.
Claims (2)
1. an adjustable square hydraulic vibration extracting-driving pile machine hydraulic mechanism is characterized in that: comprise sequence valve XF
2, sequence valve XF
1, electro-hydraulic reversing valve HXF
1With pressure reduction reversal valve HXF
4, said sequence valve XF
2Outlet and one way valve DF5 and one way valve DF
6Connect said sequence valve XF
2Inlet and control system pressure oil p
kCommunicate said sequence valve XF
2Outside control mouth and solenoid operated directional valve HXF
3A
3Mouth is connected; Said sequence valve XF
1Outside control mouth directly with control system pressure oil p
kConnect said sequence valve XF
1Outlet and electro-hydraulic reversing valve HXF
1The hydraulic control mouth connect said sequence valve XF
1Outlet through choke valve JF
2, connect with fuel tank behind the oil filter LQ; Said electro-hydraulic reversing valve HXF
1Inlet A
1With cartridge valve CF
1Control chamber C
1Pass through a choke valve JF after the parallel connection again
3With system pressure oil p
sCommunicate said cartridge valve CF
1Inlet D
1With system pressure oil p
sCommunicate said cartridge valve CF
1Outlet E
1Behind oil filter LQ, communicate said electro-hydraulic reversing valve HXF with fuel tank
1Outlet B
1With cartridge valve CF
1Outlet E
1Connect; Said pressure reduction reversal valve HXF
4Two hydraulic control mouth G, H respectively with eccentric drive oil cylinder PG
1, PG
2Rod end chamber communicate said pressure reduction reversal valve HXF
4Inlet A
4Directly with control system pressure oil p
kConnect said pressure reduction reversal valve HXF
4Outlet B
4Through choke valve JF
4The back communicates with fuel tank.
2. adjustable square hydraulic vibration extracting-driving pile machine hydraulic mechanism according to claim 1 is characterized in that: said sequence valve XF
1With sequence valve XF
2Be the external control formula sequence valve that leaks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220159951XU CN202543938U (en) | 2012-04-16 | 2012-04-16 | Hydraulic mechanism for eccentricity-adjustable hydraulic vibratory pile driver-extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220159951XU CN202543938U (en) | 2012-04-16 | 2012-04-16 | Hydraulic mechanism for eccentricity-adjustable hydraulic vibratory pile driver-extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202543938U true CN202543938U (en) | 2012-11-21 |
Family
ID=47164592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220159951XU Expired - Fee Related CN202543938U (en) | 2012-04-16 | 2012-04-16 | Hydraulic mechanism for eccentricity-adjustable hydraulic vibratory pile driver-extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202543938U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174816A (en) * | 2013-04-03 | 2013-06-26 | 湘潭大学 | Pressure difference control type infinitely variable transmission flux active control system |
| CN105464116A (en) * | 2016-01-16 | 2016-04-06 | 东莞市新宝钢结构工程有限公司 | High-speed hydraulic pile driving and drawing machine |
-
2012
- 2012-04-16 CN CN201220159951XU patent/CN202543938U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174816A (en) * | 2013-04-03 | 2013-06-26 | 湘潭大学 | Pressure difference control type infinitely variable transmission flux active control system |
| CN103174816B (en) * | 2013-04-03 | 2015-09-02 | 湘潭大学 | A kind of pressure differential control type stepless speed variator flow active control system |
| CN105464116A (en) * | 2016-01-16 | 2016-04-06 | 东莞市新宝钢结构工程有限公司 | High-speed hydraulic pile driving and drawing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101495785B (en) | A method of operating a fluid-working machine and a fluid-working machine | |
| CA2131192C (en) | Hydraulic oil well pump drive system | |
| CN201730780U (en) | Hydraulically driven difunctional multi-cylinder slurry pump | |
| CN203130399U (en) | Shutoff and driving adjusting device using water injection pump as power | |
| CN108278233B (en) | A kind of hydraulic system of Spool rotating formula liquid controlled reversing vibration excitor | |
| CN106870317B (en) | A kind of hydraulic cylinder driven slush pump | |
| CN101725496B (en) | Synchronous injection pump with stepless proportioning | |
| US20140007568A1 (en) | Power capture of wave energy converters | |
| CN202543938U (en) | Hydraulic mechanism for eccentricity-adjustable hydraulic vibratory pile driver-extractor | |
| CN102061646B (en) | Hydraulic excitation system of tamping device | |
| CN101007393A (en) | Reversible drive device with two single action cylinder implemented by closed abrasive | |
| CN2818553Y (en) | Distance adjuster of hydraulic vibration piling sinking apparatus | |
| RU151450U1 (en) | HYDRAULIC DRIVE BRAKE PUMP PUMP | |
| CN205477517U (en) | Well cementation device | |
| CN107939782A (en) | Wave maker and its hydraulic system | |
| CN202866763U (en) | Power unit of hydraulic oil pumping machine and hydraulic oil pumping machine comprising power unit | |
| CN201891051U (en) | Hydraulic shock excitation system of tamping device | |
| CN210152641U (en) | Device for driving shear valve to generate pulse pressure wave by utilizing hydrodynamic force | |
| CN203939795U (en) | Hydraulic power unit | |
| CN207406274U (en) | Stake machine equipment hydraulic speed-limiting system | |
| CN212202375U (en) | Bidirectional high-pressure large-flow grouting pump | |
| CN104930010B (en) | Vibratory pile driving machine hydraulic system | |
| RU2647286C2 (en) | Hydraulic oil pump drive unit and associated hydraulic oil pump | |
| WO2011127875A2 (en) | Hydraulic equipment of the locking device with hydraulic cylinders in parallel connection designed for the railway turnout switch rails setting | |
| CN207879573U (en) | A kind of oil well pumping-assistant device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Luo Chunlei Inventor after: Liu Fanghua Inventor after: Fan Zenghui Inventor after: Song Changchun Inventor after: Zhang Yi Inventor before: Luo Chunlei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LUO CHUNLEI TO: LUO CHUNLEI LIU FANGHUA FAN ZENGHUI SONG CHANGCHUN ZHANG YI |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130416 |