CN106284352B - Static pile press hydraulic control system - Google Patents
Static pile press hydraulic control system Download PDFInfo
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- CN106284352B CN106284352B CN201610759200.4A CN201610759200A CN106284352B CN 106284352 B CN106284352 B CN 106284352B CN 201610759200 A CN201610759200 A CN 201610759200A CN 106284352 B CN106284352 B CN 106284352B
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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
- E02D7/20—Placing by pressure or pulling power
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
A kind of static pile press hydraulic control system, including fuel tank；The first hydraulic pump and the second hydraulic pump being connect with the fuel tank；The first check valve being connect with first hydraulic pump；The first reversal valve of clip pile oil cylinder fuel feeding, and the second reversal valve for piling oil cylinder fuel feeding are connected as with first check valve；The second check valve being connect with second hydraulic pump；It is connected in parallel, respectively the third reversal valve of the hydraulic rotary motor fuel feeding of crane, is the 5th reversal valve of amplitude oil cylinder fuel feeding to roll up the 4th reversal valve of poplar hydraulic motor fuel feeding, is the 6th reversal valve of boom frame telescopic hydraulic drive mechanism fuel feeding；With the third reversal valve, the 4th reversal valve, the 5th reversal valve and the 6th reversal valve and foot valve even, the third reversal valve, the 4th reversal valve, the 5th reversal valve and the 6th reversal valve oil return opening connect with the flowline of first check valve；The foot valve is used to adjust the bypass flow of the second hydraulic pump.
Description
Technical field
The present invention relates to the piling machinerys in engineering machinery, more particularly, to a kind of hydraulic control system of static pile press
System.
Background technology
China releases and uses static pile press since 20th century the nineties, and the machine mainly exists in the world at present
China produces and uses；Static pile press has the advantages that noiseless, pollution-free (motor driving), operating efficiency are high, especially suitable
It should be in urban architecture foundation construction.Static press piling machine operation is to be clamped pile body using the hydraulic cylinder of pile chuck, is then used
Piling oil cylinder pushes pile chuck that pile body is pressed into underground；Simultaneously also need in the construction process using equipment it is subsidiary hang a lifting
Machine.One to static pile press important requirement is securely to clamp pile body, but be unlikely to chucking power again simultaneously and cross senior general's stake
Body folder is split, this is the key element for influencing static pile press normal operation.The clip pile of existing static pile press controls hydraulic system
Structure include that the components such as fuel tank, oil pump, safety valve, reversal valve, hydraulic lock, clip pile oil cylinder, overload valve connect and compose；Its work
Principle is：In operation, reversal valve is manipulated, the pressure oil that oil pump comes enters the big chamber of clip pile oil cylinder, and clip pile oil cylinder is in pressure oil
Under the action of pile body is clamped, hydraulic lock be used for prevent in the big chamber of clip pile oil cylinder oil leakage, to keep pressure, pile chuck to exist
Piling oil cylinder effect is lower to be pressed into underground by frictional force by pile body.Because the clip pile and pile driving pressure of static pile press are larger, to clip pile
The pressure requirements of oil cylinder are high, and slightly pressure release then not clamping stake causes piling to fail, and use the progress such as hydraulic lock in the prior art
Pressurize influences normal operation it is possible to there are certain pressure release.
Hydraulic System of Hydrostatic Pressure Pile Driver is divided into piling and clip pile hydraulic system and crane hydraulic system in the prior art, and two
System separates fuel feeding, and since the frequency of use of crane is very low, and general only just use when hanging, there are the idlenesses of equipment
Or the problem of waste of energy, and piling and clip pile hydraulic system generally require big flow piling, the piling speed the case where
Under, it is difficult to meet its flow demand, large discharge pump need to be set, increases many costs.Crane is in slinging work, to proposing stake
It generally requires to be adjusted according to operating mode with the speed of revolution, what static pile press was subsidiary in the prior art hangs crane hydraulic pressure
System speed governing is inconvenient.
Invention content
In order to overcome the deficiencies of existing technologies, the present invention provides a kind of static pile press hydraulic control system, to improve
Piling operating efficiency facilitates and adjusts piling and the subsidiary speed adjusting for hanging a crane.
In order to solve the above technical problem, the present invention provides a kind of static pile press hydraulic control systems, including fuel tank；It is logical
Cross the first hydraulic pump and the second hydraulic pump that oil pipe is connect with the fuel tank；Oil inlet is pumped out by oil pipe and first hydraulic pressure
First check valve of mouth connection；Oil inlet is connect by oil pipe with the oil outlet of first check valve, and two actuator ports are logical
It crosses oil pipe to connect with the rodless cavity of clip pile oil cylinder and rod chamber respectively, oil return opening is changed by first that oil pipe is connect with the fuel tank
To valve；Oil inlet is connect by oil pipe with the oil outlet of first check valve, two actuator ports by oil pipe respectively with pressure
The rodless cavity of stake oil cylinder is connected with rod chamber, the second reversal valve that oil return opening is connect by oil pipe with the fuel tank；Oil inlet is logical
Cross the second check valve that oil pipe is connect with second hydraulic pump outlet；It is connected in parallel, respectively the hydraulic gyration horse of crane
It is the 4th reversal valve of elevator hydraulic motor fuel feeding up to the third reversal valve of fuel feeding, is the 5th reversal valve of amplitude oil cylinder fuel feeding,
With the 6th reversal valve for boom frame telescopic hydraulic drive mechanism fuel feeding；With the third reversal valve, the 4th reversal valve, the 5th commutation
The foot valve of valve and the 6th reversal valve and downlink connection, the foot valve are used to adjust the bypass flow of the second hydraulic pump；Described
Three reversal valves, the 4th reversal valve, the 5th reversal valve and the 6th reversal valve oil inlet pass through oil pipe and second check valve
Oil outlet connects, and oil return opening is connect with the flowline of first check valve.
The technical issues of in order to solve to avoid clip pile oil cylinder pressure release in operation process, stablize clip pile pressure, as into one
Improved technology scheme is walked, static pile press hydraulic control system provided by the invention also has oil inlet and the piling oil cylinder
Rodless cavity oil inlet pipe connection, the third check valve that oil outlet is connect with the rodless cavity oil inlet pipe of the clip pile oil cylinder；Oil inlet
It is connect with the first actuator port of first reversal valve by oil pipe, oil outlet is by oil pipe with the clip pile oil cylinder without bar
The hydraulic control one-way valve that chamber is connected with third one-way valved outlet；It is connect with the flowline of first actuator port of the first reversal valve
First overflow valve；The control port of the hydraulic control one-way valve is fuel-displaced by oil pipe and second actuator port of the first reversal valve
Pipe connects.
As being further improved technical solution, static pile press hydraulic control system provided by the invention, first liquid
Press pump and the second hydraulic pump are unidirectional volume adjustable hydraulic pump.
As being further improved technical solution, static pile press hydraulic control system provided by the invention, with described second
The flowline of two actuator port of reversal valve connection further respectively has the second overflow valve and third overflow valve.
As technical solution is further improved, static pile press hydraulic control system provided by the invention also has and institute
State third reversal valve, the 4th overflow valve that the 4th reversal valve, the 5th reversal valve, the 6th reversal valve and foot valve are connected in parallel.
As technical solution is further improved, static pile press hydraulic control system provided by the invention also has and institute
State the second reversal valve and the 7th reversal valve of downlink connection.
In the absence of conflict, above-mentioned improved technology scheme can be implemented alone or in combination.
Static pile press hydraulic control system provided by the invention, third reversal valve 10, the commutation of the 4th reversal valve the 11, the 5th
Valve 12, the 6th reversal valve 13, foot valve 14, the 4th overflow valve 23 are to be connected in parallel, and the 4th overflow valve 23 is for controlling each commutation
The input pressure of valve and foot valve 14, foot valve 14 can be used for flowing through the hydraulic oil of each reversal valve when adjusting crane job
The technical issues of amount, each action process needs speed governing when effectively solving crane job；Foot valve 14 can also adjust the second liquid
Press pump 3 enters the The hydraulic oil of piling and clip pile hydraulic system, keeps the first hydraulic pump 2 and the second hydraulic pump 3 in parallel for pressure
Stake and clip pile hydraulic system fuel feeding improve operating efficiency.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and is constituted part of this application, but is not constituted to this hair
Bright improper restriction.In the accompanying drawings：
Fig. 1 is embodiment static pile press hydraulic control system schematic diagram.
Specific implementation mode
Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.
Static pile press hydraulic control system as shown in Figure 1 is divided into piling and clip pile hydraulic system and crane hydraulic pressure
System.Piling and clip pile hydraulic system include fuel tank 1, and the first hydraulic pump 2 is connect by oil pipe with fuel tank 1, and the first hydraulic pump 2 is
Unidirectional volume adjustable hydraulic pump；The oil inlet of first check valve 4 is connect by oil pipe with the outlet of the first hydraulic pump 2, the first reversal valve 7
For the three position four-way directional control valve of regulating flow quantity, oil outlet that the oil inlet of the first reversal valve 7 passes through oil pipe and the first check valve 4
Connection, two actuator ports connects with the rodless cavity of clip pile oil cylinder 5 and rod chamber respectively by oil pipe, oil return opening by oil pipe and
Fuel tank 1 connects；Second reversal valve 8 and the 7th reversal valve 24 are connected in parallel, their oil inlet passes through oil pipe and the first check valve 4
Oil outlet connection, two actuator ports connects with the rodless cavity of piling oil cylinder 6 and rod chamber respectively by oil pipe, and oil return opening leads to
It crosses oil pipe to connect with fuel tank 1, the flowline that 24 liang of actuator ports of the second reversal valve 8 and the 7th reversal valve connect further respectively has
Two overflow valves 21 and third overflow valve 22；The rodless cavity oil inlet that the oil inlet of third check valve 19 passes through oil pipe and piling oil cylinder 6
Pipe connects, and the oil outlet of third check valve 19 is connect by oil pipe with the rodless cavity oil inlet pipe of clip pile oil cylinder 5；Hydraulic control one-way valve 20
Oil inlet connect with the first actuator port of the first reversal valve 7 by oil pipe, the nothing that oil outlet passes through oil pipe and clip pile oil cylinder 5
Rod cavity is connected with the outlet of third check valve 19；The flowline of 7 first actuator port of first overflow valve 21 and the first reversal valve connects
It connects；The control port of hydraulic control one-way valve 20 is connect by oil pipe with the flowline of 7 second actuator port of the first reversal valve.
Crane hydraulic system includes fuel tank 1, and the second hydraulic pump 3 is connect by oil pipe with fuel tank, and the second hydraulic pump 3 is single
To volume adjustable hydraulic pump, the oil inlet of the second check valve 9 is connect by oil pipe with the outlet of the second hydraulic pump 3；Third reversal valve 10
Oil inlet connect with the oil outlet of the second check valve 9, two actuator ports of third reversal valve 10 respectively with the hydraulic pressure of crane
Two hydraulic fluid ports of rotary motor 15 connect, and the oil inlet of the 4th reversal valve 11 is connect with the oil outlet of the second check valve 9, the 4th commutation
Two actuator ports of valve 11 are connect with two hydraulic fluid ports of the elevator hydraulic motor 16 of crane respectively, the oil inlet of the 5th reversal valve 12
Connect with the oil outlet of the second check valve 9, two actuator ports of the 5th reversal valve 12 respectively with the amplitude oil cylinder of crane 17
Rodless cavity is connected with rod chamber, and the oil inlet of the 6th reversal valve 13 is connect with the oil outlet of the second check valve 9, the 6th reversal valve 13
Two actuator ports connect respectively with two hydraulic fluid ports of the boom frame telescopic hydraulic drive mechanism 18 of crane, the oil inlet of foot valve 14
It is connect with the oil outlet of the second check valve 9, foot valve 14 is used to adjust the bypass flow of the second hydraulic pump 3, the 4th overflow valve 23
Oil inlet connect with the oil outlet of the second check valve 9, third reversal valve 10, the 4th reversal valve 11, the 5th reversal valve 12 and
The oil return opening and foot valve 14 of six reversal valves 13, the oil outlet of the 4th overflow valve 23 pass through oil pipe and the second check valve 9
Oil outlet connects；Third reversal valve 10, the 4th reversal valve 11, the 5th reversal valve 12, the 6th reversal valve 13, foot valve the 14, the 4th
Overflow valve 23 is to be connected in parallel.
Operation principle：Third reversal valve 10, the 4th reversal valve 11, the 5th reversal valve 12, the 6th reversal valve 13, foot valve
14, the 4th overflow valve 23 is to be connected in parallel, and the 4th overflow valve 23 is used to control the input pressure of each reversal valve and foot valve 14, foot
Step on valve 14 can be used for adjust crane job when, flow through the The hydraulic oil of each reversal valve, such as：Foot valve 14 can be stepped on by foot
Displacement control flow away amount of the hydraulic oil from foot valve 14, and then control the liquid of corresponding reversal valve when entering crane job
Pressure oil flow controls the speed of crane action with this, when needing to slow down, it is only necessary to by 14 pedal pine one of foot valve
Point, when needing to accelerate speed, it is only necessary to which 14 pedal of foot valve is floored, you can realize maximum speed hoisting operation, effectively
The technical issues of each action process needs speed governing when solving crane job；Foot valve 14 can also adjust the second hydraulic pump 3 into
The hydraulic fluid flow rate for entering piling and clip pile hydraulic system keeps the first hydraulic pump 2 and the second hydraulic pump 3 in parallel for piling and clip pile liquid
Pressure system fuel feeding improves operating efficiency.
When piling and clip pile hydraulic system operation, rodless cavity oil inlet of first reversal valve 7 to clip pile oil cylinder 5 is manipulated first,
Rod chamber oil return makes clip pile oil cylinder 5 that the stake to be pressed of residence be clamped；Then the second reversal valve 8 or/and the 7th reversal valve 24 are manipulated,
So that hydraulic oil is entered the rodless cavity of piling oil cylinder 6, carries out piling and bury operation.Due to the operating pressure of piling oil cylinder 6 when work
The operating pressure for being inherently slightly larger than clip pile oil cylinder 5 is connect so when carrying out piling operation with 6 rodless cavity of piling oil cylinder
Pipeline is in addition to other than 6 fuel feeding of piling oil cylinder, also by third check valve 19 to the rodless cavity fuel feeding of clip pile oil cylinder 5, to effectively
It keeps the rodless cavity of clip pile oil cylinder not fall pressure, obtains good piling efficiency.Hydraulic control one-way valve 20 controls the pressure of clip pile oil cylinder 5
It is unlikely excessively high, play safeguard protection.
It is clear that the invention is not restricted to which the above preferred embodiment, can also limit in the claims in the present invention and specification
In spirit, the transformation and improvement of diversified forms are carried out, same technical problem can be solved, and obtains expected technique effect, therefore
It does not repeat.Those skilled in the art can from present disclosure directly or all schemes for associating, if
Within the spirit that claim limits, protection scope of the present invention is also belonged to.
Claims (4)
1. a kind of static pile press hydraulic control system, it is characterised in that：Including fuel tank（1）；Pass through oil pipe and the fuel tank（1）
First hydraulic pump of connection（2）With the second hydraulic pump（3）；Oil inlet passes through oil pipe and first hydraulic pump（2）Outlet connection
The first check valve（4）；Oil inlet passes through oil pipe and first check valve（4）Oil outlet connection, two actuator ports are logical
Cross oil pipe respectively with clip pile oil cylinder（5）Rodless cavity connected with rod chamber, oil return opening passes through oil pipe and the fuel tank（1）Connection
First reversal valve（7）；Oil inlet passes through oil pipe and first check valve（4）Oil outlet connection, two actuator ports pass through
Oil pipe respectively with piling oil cylinder（6）Rodless cavity connected with rod chamber, oil return opening passes through oil pipe and the fuel tank（1）The of connection
Two reversal valves（8）；Oil inlet passes through oil pipe and second hydraulic pump（3）Export the second check valve of connection（9）；Parallel connection is even
It connects, respectively the hydraulic rotary motor of crane（15）The third reversal valve of fuel feeding（10）, it is elevator hydraulic motor（16）Fuel feeding
The 4th reversal valve（11）, it is amplitude oil cylinder（17）5th reversal valve of fuel feeding（12）, and be boom frame telescopic hydraulic drive mechanism
6th reversal valve of fuel feeding（13）；With the third reversal valve（10）, the 4th reversal valve（11）, the 5th reversal valve（12）With the 6th
Reversal valve（13）And the foot valve of downlink connection（14）, the foot valve（14）For adjusting the second hydraulic pump（3）Bypass flow；
With the third reversal valve（10）, the 4th reversal valve（11）, the 5th reversal valve（12）, the 6th reversal valve（13）And foot valve（14）
The 4th overflow valve being connected in parallel（23）；The third reversal valve（10）, the 4th reversal valve（11）, the 5th reversal valve（12）With
Six reversal valves（13）Oil inlet pass through oil pipe and second check valve（9）Oil outlet connection, oil return opening and described first
Check valve（4）Flowline connection.
2. static pile press hydraulic control system according to claim 1, it is characterised in that：Also have oil inlet with it is described
Piling oil cylinder（6）The connection of rodless cavity oil inlet pipe, oil outlet and the clip pile oil cylinder（5）Rodless cavity oil inlet pipe connection third
Check valve（19）；Oil inlet passes through oil pipe and first reversal valve（7）The connection of the first actuator port, oil outlet passes through oil pipe
With the clip pile oil cylinder（5）Rodless cavity and third check valve（19）Export the hydraulic control one-way valve of connection（20）；With described first
Reversal valve（7）First overflow valve of the flowline connection of the first actuator port（21）；The hydraulic control one-way valve（20）Control oil
Mouth passes through oil pipe and first reversal valve（7）The flowline of second actuator port connects.
3. static pile press hydraulic control system according to claim 1, it is characterised in that：First hydraulic pump（2）
With the second hydraulic pump（3）For unidirectional volume adjustable hydraulic pump.
4. static pile press hydraulic control system according to claim 1, it is characterised in that：Also have and is changed with described second
To valve（8）7th reversal valve in parallel（24）；With the second reversal valve（8）With the 7th reversal valve（24）The connection of two actuator ports goes out
Oil pipe further respectively has the second overflow valve（21）With third overflow valve（22）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759200.4A CN106284352B (en) | 2016-08-30 | 2016-08-30 | Static pile press hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759200.4A CN106284352B (en) | 2016-08-30 | 2016-08-30 | Static pile press hydraulic control system |
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| Publication Number | Publication Date |
|---|---|
| CN106284352A CN106284352A (en) | 2017-01-04 |
| CN106284352B true CN106284352B (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610759200.4A Active CN106284352B (en) | 2016-08-30 | 2016-08-30 | Static pile press hydraulic control system |
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| Country | Link |
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| CN (1) | CN106284352B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983011B (en) * | 2021-12-31 | 2022-02-25 | 青州海盾液压机械有限公司 | Intelligent digital hydraulic system |
| CN116201778B (en) * | 2023-03-28 | 2023-11-17 | 山东临工工程机械有限公司 | Piling control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201221083Y (en) * | 2008-07-09 | 2009-04-15 | 赵黎明 | Final pressure stabilizing apparatus for hydraulic static pile-compressing machine |
| CN201261883Y (en) * | 2008-07-09 | 2009-06-24 | 赵黎明 | Pile clamping pressure and pile compressing pressure synchronous controller of hydraulic static pile-compressing machine |
| CN102887447A (en) * | 2012-10-17 | 2013-01-23 | 中联重科股份有限公司 | Hydraulic control loop of variable amplitude hydraulic cylinder, crane and variable amplitude control method |
| CN203627359U (en) * | 2013-12-13 | 2014-06-04 | 中联重科股份有限公司 | Crane for foundation pile construction and hydraulic system thereof |
| JP2014167334A (en) * | 2013-02-28 | 2014-09-11 | Sumitomo (Shi) Construction Machinery Co Ltd | Hydraulic circuit of construction machine and its control method |
| CN206034442U (en) * | 2016-08-30 | 2017-03-22 | 长沙拓沃工程机械设备有限公司 | Static pile driver hydraulic control system |
-
2016
- 2016-08-30 CN CN201610759200.4A patent/CN106284352B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201221083Y (en) * | 2008-07-09 | 2009-04-15 | 赵黎明 | Final pressure stabilizing apparatus for hydraulic static pile-compressing machine |
| CN201261883Y (en) * | 2008-07-09 | 2009-06-24 | 赵黎明 | Pile clamping pressure and pile compressing pressure synchronous controller of hydraulic static pile-compressing machine |
| CN102887447A (en) * | 2012-10-17 | 2013-01-23 | 中联重科股份有限公司 | Hydraulic control loop of variable amplitude hydraulic cylinder, crane and variable amplitude control method |
| JP2014167334A (en) * | 2013-02-28 | 2014-09-11 | Sumitomo (Shi) Construction Machinery Co Ltd | Hydraulic circuit of construction machine and its control method |
| CN203627359U (en) * | 2013-12-13 | 2014-06-04 | 中联重科股份有限公司 | Crane for foundation pile construction and hydraulic system thereof |
| CN206034442U (en) * | 2016-08-30 | 2017-03-22 | 长沙拓沃工程机械设备有限公司 | Static pile driver hydraulic control system |
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| CN106284352A (en) | 2017-01-04 |
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| CB02 | Change of applicant information |
Address after: 410152 Guangsheng village, salvage Town, Kaifu District, Changsha, Hunan Applicant after: Hunan Billiton Heavy Industry Technology Co., Ltd. Address before: 410000 Guangsheng village, Baifu River, Kaifu District, Changsha, Hunan Applicant before: CHANGSHA TOWER MACHINERY ENGINEERING CORPORATION |
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| CB02 | Change of applicant information | ||
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Inventor after: Zhang Peng Inventor after: He Ripeng Inventor after: Hu Shiqi Inventor after: Liu Daoqing Inventor before: Zhang Peng |
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