CN1314858C - Device for controlling ratio between pressing pile and clamping pile of hydraulic static machine of pressing piles - Google Patents
Device for controlling ratio between pressing pile and clamping pile of hydraulic static machine of pressing piles Download PDFInfo
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- CN1314858C CN1314858C CNB2003101118784A CN200310111878A CN1314858C CN 1314858 C CN1314858 C CN 1314858C CN B2003101118784 A CNB2003101118784 A CN B2003101118784A CN 200310111878 A CN200310111878 A CN 200310111878A CN 1314858 C CN1314858 C CN 1314858C
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Abstract
The present invention provides a device for controlling the proportion between a pressing pile and a clamping pile of a hydraulic static pile pressing machine, which comprises an oil tank, an oil pump, a safety valve, a reversing valve, a hydraulic lock, an oil cylinder of a clamping pile, an overload valve, an oil cylinder of a pressing pile and a pressure proportion converter, wherein the pressure scale converter is respectively connected with the oil cylinder of a clamping pile and the oil cylinder of a pressing pile; the pressure proportion converter is formed by the connection of a miniature oil cylinder which is similar to and in direct proportion with the oil cylinder of a pressing pile, and a miniature piston cylinder outputting pressure proportion. The present invention can change pile clamping force and pile pressing force in proportion, which effectively prevents or reduces the occurrence of skid phenomenon; to pile bodies which has possibility of fracture in large pile clamping force, because of the capability of regulating the strength of the pile clamping force, the present invention can reduce or avoid the phenomenon of pile body fracture, enhances the reliability of the clamping pile and lowers construction cost; the present invention can also simplify operation, has convenient use and reduces the artificial arrangement and regulation to the pile clamping force, and thereby, the present invention can quicken construction progress and enhances construction quality.
Description
Technical field
The present invention relates to the piling machinery of engineering machinery, particularly a kind of hydraulic static pile pressing machine piling folder stake proportional control apparatus.
Background technology
China from 20th century the nineties begin to release and use hydraulic static pile pressing machine, this machine is mainly produced and is used in China in the world at present; Hydraulic static pile pressing machine has noiselessness, pollution-free (motor-driven), advantage that operating efficiency is high, is adapted to the urban architecture foundation construction especially.The hydraulic static pile pressing machine operation is to use the hydraulic jack of pile chuck that pile body is clamped, and uses the piling oil cylinder to promote pile chuck then and pile body is pressed into underground.To one of hydraulic static pile pressing machine important requirement is that pile body is firmly clamped, and crosses senior general's pile body folder and splits but be unlikely to simultaneously chucking power again, and this is the key element that influences the hydraulic static pile pressing machine normal operation.The structure of the folder stake controlled hydraulic system of existing hydraulic static pile pressing machine is connected and composed by members such as fuel tank 1, oil pump 2, safety valve 3, reversal valve 4, hydraulic lock 5, folder stake oil cylinder 6, overload valves 7 as shown in Figure 1; Its operating principle is: when operation, handle reversal valve 4 in upper, enter the big chamber of folder stake oil cylinder 6 by the pressure oil of oil pump 2, folder stake oil cylinder 6 clamps pile body 8 under the effect of pressure oil, hydraulic lock 5 is used for preventing that the oil that presss from both sides an oil cylinder 6 big chambeies from leaking, thereby keep-up pressure, pile chuck is pressed into pile body underground by frictional force under the effect of piling oil cylinder.The pile locking force size of folder stake oil cylinder 6 is set by overload valve 7, does not have direct relation with the size of pile driving pressure; When work, along with pressure pile resistance increases, usually might between folder stake oil cylinder and pile body, skid, in order to prevent to skid, just need be provided with the pile locking force of folder stake controlled hydraulic system very big when often beginning, be easy in the piling process, make the pile body fracture like this.How to prevent to press from both sides stake when skidding the unlikely again pile body folder is split be to use hydraulic static pile pressing machine to carry out problem demanding prompt solution in the piling operation.
Summary of the invention
The objective of the invention is to overcome the shortcoming that prior art exists, provide a kind of and not only can prevent that the folder stake from skidding but also can reduce or avoid the pile body folder is split, obviously improve hydraulic static pile pressing machine the piling folder stake proportional control apparatus of operational reliability.
Purpose of the present invention is achieved through the following technical solutions: this hydraulic static pile pressing machine piling folder stake proportional control apparatus comprises fuel tank, oil pump, safety valve, reversal valve, hydraulic lock, folder stake oil cylinder, overload valve, piling oil cylinder, it is characterized in that also comprising the pressure proportional converter, the pressure proportional converter is connected with folder stake oil cylinder and piling oil cylinder respectively.
Described pressure proportional converter is provided with two pressure introduction port and a pressure output, two pressure introduction port are connected with the large and small chamber of piling oil cylinder by pipeline respectively, and a pressure output is connected by big chamber to the pipeline between the hydraulic lock of stop valve with folder stake oil cylinder.
Described pressure proportional converter is connected to form by a similar and directly proportional miniature oil cylinder to the piling oil cylinder and the minitype piston cylinder with pressure proportional output.
Described miniature oil cylinder comprises miniature cylinder body, small-bore cylinder piston, spacer, and the small-bore cylinder piston is arranged in the miniature cylinder body, and spacer also is positioned at miniature cylinder body and is socketed on the small-bore cylinder piston; The big chamber of miniature cylinder body and loculus are connected by pipeline with the big chamber and the loculus of piling oil cylinder respectively.
Described minitype piston cylinder comprises pressure conversion piston, return spring, piston/cylinder, and in piston/cylinder, pressure conversion piston pushes up connection with the small-bore cylinder piston simultaneously to pressure conversion piston mutually by the return spring apical grafting; The big chamber of piston/cylinder is connected to the pipeline between the hydraulic lock with the big chamber of folder stake oil cylinder, and the loculus of piston/cylinder is connected with fuel tank.
Operating principle of the present invention is: during piling, the reversal valve of handling this piling folder stake proportional control apparatus is in upper, the big chamber that pressure oil enters folder stake oil cylinder clamps pile body, pile locking force is set by overload valve, the pile locking force that operated by rotary motion is less, carry out the piling operation then, piling oil cylinder big, little cavity pressure is passed to the big of miniature cylinder body in the pressure proportional converter, loculus, the small-bore cylinder piston promotes pressure conversion piston downwards under the effect of pressure, and then the oil pressure in the big chamber of piston/cylinder is gone into the big chamber of folder stake oil cylinder, the big or small cavity area of miniature cylinder body and the big or small cavity area of piling oil cylinder are proportional, also as requested the proportional relation of area of proportionate relationship and pressure conversion piston simultaneously, thus make the pile driving pressure and a folder proportional relation of the big cavity pressure of oil cylinder of piling oil cylinder; When pile driving pressure increased, pile locking force also increased thereupon, can avoid applying when folder stake beginning bigger pile locking force like this.
The present invention has following advantage and effect with respect to prior art:
(1) utilize this piling folder stake proportional control apparatus can make pile locking force and the proportional variation of pile driving pressure, when required pile driving pressure was big, pile locking force was also corresponding bigger, can effectively prevent or reduce skidding and take place.
(2) for some pile bodies that might can rupture when the big pile locking force, utilize this piling folder stake proportional control apparatus can regulate pile driving pressure hour, pile locking force is also corresponding less, therefore can avoid taking place the phenomenon of pile body fracture, improve folder stake reliability, reduce construction cost.
(3) utilize this piling folder stake proportional control apparatus simplified operation, convenient enforcement reduced artificial setting and adjustment to pile locking force, thereby but accelerating construction progress improves construction quality.
Description of drawings
Fig. 1 is the structural representation of existing folder stake controlled hydraulic system.
Fig. 2 is the structural representation that piling folder stake proportional control apparatus of the present invention is installed on existing hydraulic static pile pressing machine.
Fig. 3 is the structural representation of the pressure proportional converter of piling folder stake proportional control apparatus shown in Figure 2.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment
Concrete structure of the present invention as shown in Figures 2 and 3, as seen from Figure 2, the structure of hydraulic static pile pressing machine that piling of the present invention folder stake proportional control apparatus is installed is mainly by fuel tank 1, oil pump 2, safety valve 3, reversal valve 4, hydraulic lock 5, folder stake oil cylinder 6, overload valve 7, stop valve 9, piling oil cylinder 10, pressure proportional converter 11, piling control reversal valve 18,19 connect and compose, pressure proportional converter 11 is provided with two pressure introduction port 11-1,11-2 and a pressure output 11-3, two pressure introduction port 11-1,11-2 is big by pipeline and piling oil cylinder 10 respectively, loculus is connected, and a pressure output 11-3 is connected by big chamber to the pipeline between the hydraulic lock 5 of stop valve 8 with folder stake oil cylinder 6.Wherein, the concrete structure of pressure proportional converter 11 is connected to form to piling oil cylinder 10 similar and directly proportional miniature oil cylinders and the minitype piston cylinder with pressure proportional output by one as shown in Figure 3; Described miniature oil cylinder comprises miniature cylinder body 12, small-bore cylinder piston 13, spacer 14, and small-bore cylinder piston 13 is arranged in the miniature cylinder body 12, and spacer 14 also is positioned at miniature cylinder body 12 and is socketed on the small-bore cylinder piston 13; The large and small chamber of miniature cylinder body 12 is connected by pipeline with the large and small chamber of piling oil cylinder 10 respectively; Described minitype piston cylinder comprises pressure conversion piston 15, return spring 16, piston/cylinder 17, and in piston/cylinder 17, pressure conversion piston 15 pushes up connection with small-bore cylinder piston 13 simultaneously to pressure conversion piston 15 mutually by return spring 16 apical graftings; The big chamber of piston/cylinder 17 is connected to the pipeline between the hydraulic lock 5 with the big chamber of folder stake oil cylinder 6, and the loculus of piston/cylinder 17 is connected with fuel tank.
The mechanism of this piling folder stake proportional control apparatus is as follows: during piling, handle reversal valve 4 in upper, the big chamber that pressure oil enters folder stake oil cylinder 6 clamps pile body 8, pile locking force is set by overload valve 7, less pile locking force can be set, carry out the piling operation then, handle reversal valve 18 simultaneously, 19 in quick piling (piling oil cylinder 10 big, loculus advances pressure oil simultaneously) or piling at a slow speed (pressure oil is advanced in the big chamber of piling oil cylinder 10, the loculus oil return) position, piling oil cylinder 10 big, little cavity pressure is passed to miniature cylinder body 12 big of pressure proportional converter 11, loculus, small-bore cylinder piston 13 promotes pressure conversion piston 15 under pressure downwards, and then the oil pressure in piston/cylinder 17 big chambeies is gone into the big chamber of folder stake oil cylinder 6, miniature cylinder body 12 big, the big or small cavity area of little cavity area and piling oil cylinder 10 is proportional, simultaneously also as requested proportionate relationship with the proportional relation of area of pressure conversion piston 15, thereby the pile driving pressure of piling oil cylinder 10 and the proportional relation of folder stake oil cylinder 6 big cavity pressures, when pile driving pressure increased, pile locking force also increased thereupon.
If when not using this control device, can close stop valve 9.
Claims (5)
1, a kind of hydraulic static pile pressing machine piling folder stake proportional control apparatus, comprise fuel tank (1), oil pump (2), safety valve (3), reversal valve (4), hydraulic lock (5), folder stake oil cylinder (6), overload valve (7), piling oil cylinder (10), it is characterized in that, described hydraulic static pile pressing machine piling folder stake proportional control apparatus also comprises pressure proportional converter (11), and pressure proportional converter (11) is connected with folder stake oil cylinder (6) and piling oil cylinder (10) respectively.
2, hydraulic static pile pressing machine piling folder stake proportional control apparatus according to claim 1, it is characterized in that: described pressure proportional converter (11) is provided with two pressure introduction port (11-1,11-2) and a pressure output (11-3), two pressure introduction port (11-1,11-2) are connected by the large and small chamber of pipeline with piling oil cylinder (10) respectively, and a pressure output (11-3) is connected by big chamber to the pipeline between the hydraulic lock (5) of stop valve (9) with folder stake oil cylinder (6).
3, hydraulic static pile pressing machine piling folder stake proportional control apparatus according to claim 1, it is characterized in that: described pressure proportional converter (11) is connected to form by a similar and directly proportional miniature oil cylinder to the piling oil cylinder and the minitype piston cylinder with pressure proportional output.
4, hydraulic static pile pressing machine piling folder stake proportional control apparatus according to claim 3, it is characterized in that: described miniature oil cylinder comprises miniature cylinder body (12), small-bore cylinder piston (13), spacer (14), small-bore cylinder piston (13) is arranged in the miniature cylinder body (12), and spacer (14) also is positioned at miniature cylinder body (12) and is socketed on the small-bore cylinder piston (13).
5, hydraulic static pile pressing machine piling folder stake proportional control apparatus according to claim 3, it is characterized in that: described minitype piston cylinder comprises pressure conversion piston (15), return spring (16), piston/cylinder (17), in piston/cylinder (17), pressure conversion piston (15) pushes up connection with small-bore cylinder piston (13) simultaneously to pressure conversion piston (15) mutually by return spring (16) apical grafting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101118784A CN1314858C (en) | 2003-10-24 | 2003-10-24 | Device for controlling ratio between pressing pile and clamping pile of hydraulic static machine of pressing piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101118784A CN1314858C (en) | 2003-10-24 | 2003-10-24 | Device for controlling ratio between pressing pile and clamping pile of hydraulic static machine of pressing piles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1540105A CN1540105A (en) | 2004-10-27 |
| CN1314858C true CN1314858C (en) | 2007-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101118784A Expired - Fee Related CN1314858C (en) | 2003-10-24 | 2003-10-24 | Device for controlling ratio between pressing pile and clamping pile of hydraulic static machine of pressing piles |
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| CN (1) | CN1314858C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705279B (en) * | 2012-06-11 | 2015-08-26 | 山河智能装备股份有限公司 | Hydraulic static pile pressing machine presses normal pressure auto-changeover control loop soon |
| CN102943477A (en) * | 2012-11-27 | 2013-02-27 | 恒天九五重工有限公司 | Pressure adjusting system of four-claw clamping device of static pile driver |
| CN110331723B (en) * | 2019-05-31 | 2021-06-22 | 武汉船用机械有限责任公司 | Pile gripper |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3742262A1 (en) * | 1987-11-04 | 1989-05-24 | Mueller Ludwig & Soehne | Method and apparatus for the directing movement of a hydraulically actuable sheet pile wall press on a building site |
| JPH10204879A (en) * | 1997-01-20 | 1998-08-04 | Chowa Kogyo Kk | Method and device for driving pile |
| CN2403832Y (en) * | 1999-11-30 | 2000-11-01 | 谭金云 | Multi-level float of flushing cistern for water-closet |
| CN2511722Y (en) * | 2001-10-29 | 2002-09-18 | 顺德市永基建筑基础有限公司 | Multifunctional pile clamp device |
-
2003
- 2003-10-24 CN CNB2003101118784A patent/CN1314858C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3742262A1 (en) * | 1987-11-04 | 1989-05-24 | Mueller Ludwig & Soehne | Method and apparatus for the directing movement of a hydraulically actuable sheet pile wall press on a building site |
| JPH10204879A (en) * | 1997-01-20 | 1998-08-04 | Chowa Kogyo Kk | Method and device for driving pile |
| CN2403832Y (en) * | 1999-11-30 | 2000-11-01 | 谭金云 | Multi-level float of flushing cistern for water-closet |
| CN2511722Y (en) * | 2001-10-29 | 2002-09-18 | 顺德市永基建筑基础有限公司 | Multifunctional pile clamp device |
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| Publication number | Publication date |
|---|---|
| CN1540105A (en) | 2004-10-27 |
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Granted publication date: 20070509 Termination date: 20091124 |