CN2740667Y - Top-pressure hydraulic vibrating pile press - Google Patents
Top-pressure hydraulic vibrating pile press Download PDFInfo
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- CN2740667Y CN2740667Y CN 200420076525 CN200420076525U CN2740667Y CN 2740667 Y CN2740667 Y CN 2740667Y CN 200420076525 CN200420076525 CN 200420076525 CN 200420076525 U CN200420076525 U CN 200420076525U CN 2740667 Y CN2740667 Y CN 2740667Y
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- pile
- hydraulic
- pile press
- control system
- press
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model discloses a top-pressure hydraulic vibrating pile press machine, comprising a walking traveling pile frame or a track-mounted traveling pile frame, and the pile frame platform is installed with a pile press column, a hoisting machine for hoisting the precast pile section, as well as a corresponding electric control system and a hydraulic control system. The inner cavity of the pile press column is equipped with a pile cross beam and a hydraulic vibration generator from top to bottom, while the pile press cross beam can move vertically along the side upright face, and the pile press cross beam and the hydraulic vibration generator are connected by a pile press cylinder. The top face side end of the pile press cross beam is provided with movable clamps with unidirectional stress, and the pile press column is provided with necks according to fixed distance, which are fitted with the movable clamps. The lower face of the hydraulic vibration generator is installed with a gripper mechanism, while the gripper mechanism is in gripping fit with the top end of the precast pile section. The pile press machine can make sure that the precast pile middle is a sand layer that is easy for passing through, the bearing stratum penetration is strong, and the precast pile section is basically non-damage, so the pile efficiency and the construction quality are high.
Description
Technical field
The utility model relates to used preformed pile piling equipment in the construction of city-building engineering foundation, refers to a kind of top pressing type hydraulic vibration pile press particularly.
Background technology
At present, in the foundation construction of city-building engineering, hydraulic static pile pressing machine has obtained using widely.Hydraulic static pile pressing machine adopts hydraulic static that the preformed pile segmentation is pressed in the soil layer, and its advantage is very little to surrounding constructure influence when being construction, noise is low, pollution-free, can realize civilized construction.But it requires height, counterweight to account for 70 60 percent to percent of complete machine weight to the pile frame structural strength, the steel consumption is big, transition scale of charges height, the transition of entire machine, assembly unit, transportation are very loaded down with trivial details, the poor ability of layer of sand was also very difficult in the bearing stratum injection in the middle of particularly its preformed pile penetrated in construction.Simultaneously, according to the difference to the preformed pile retaining part, hydraulic static pile pressing machine is subdivided into the wafer type in fixing preformed pile stage casing and fixing top pressing type two classes of preformed pile head again.Adopt the hydraulic static pile pressing machine of wafer type, desired chucking power is very big, is easy to cause the concrete precast pile breakage.And the hydraulic static pile pressing machine of employing top pressing type, though can effectively avoid concrete precast pile to damage, but still the above-mentioned common defects of keeping away unavoidable conventional hydraulic static pile press, its hydraulic static utilization rate is on the low side, and the pile sinking effect is also undesirable.
Summary of the invention
The purpose of this utility model to provide exactly a kind of make preformed pile pass easily at middle sand bed, strong and at the bearing stratum penetrating power to this harmless top pressing type hydraulic vibration pile press of preformed pile segment base.
For achieving the above object, the top pressing type hydraulic vibration pile press that the utility model is designed, the pile frame that comprises walking or crawler-type traveling is installed in the pressure pile standard on the described pile frame platform, crane and the corresponding electrical control system and the hydraulic control system of the prefabricated pile cutoff of lifting.Be provided with from top to bottom in the inner chamber of described pressure pile standard and can link to each other by the piling oil cylinder between described pile pressing beam and the hydraulic exciting device along its side elevation vertically mobile pile pressing beam and hydraulic exciting device.The top side of described pile pressing beam is provided with the movable clamp of single load bearing, has the draw-in groove that matches with described movable clamp by setting spacing on the described pressure pile standard.Be connected and installed with clamping device below the described hydraulic exciting device, described clamping device is clamping with the top of prefabricated pile cutoff and cooperates.
Operating principle of the present utility model is such: during pressing pile construction, at first start electrical control system and hydraulic control system and drive the piling position that whole pile press is walked to and is scheduled to, start crane then and prefabricated pile cutoff is lifted the stake position of setting, drive the work of piling oil cylinder by hydraulic control system again, the piston rod of piling oil cylinder moves downward, hydraulic exciting device to its lower end is exerted pressure, the prefabricated pile cutoff that this pressure transmits by clamping device, the oil cylinder of piling simultaneously is by being arranged on the pile pressing beam at its top, and the movable clamp on the pile pressing beam passes to pressure pile standard and pile frame with the reaction force of piling, make whole pile press rely on own wt and counterweight, prefabricated pile cutoff is pressed in the soil layer as reaction of bearing.Being about to pass through the underground bearing stratum of underground layer of sand or injection or construction ground at prefabricated pile cutoff requires grounding pressure hour, start above-mentioned hydraulic exciting device, the static pressure of periodic hydraulic exciting power and piling oil cylinder can act on this prefabricated pile cutoff simultaneously, and two kinds of strength synthesis can be pressed into prefabricated pile cutoff in the soil layer smoothly.
Advantage of the present utility model is: the periodicity exciting force of above-mentioned hydraulic exciting device and the static pressure of piling oil cylinder can be formed on vertical direction and help shaking of prefabricated pile cutoff injection and be pressed into active force, adjust the vibration frequency of hydraulic exciting device, make around above-mentioned excited frequency of making a concerted effort and the prefabricated pile cutoff natural frequency of soil layer approaching, can cause resonance.Layer of sand, bearing stratum and build-in form thereof are owing to the exciting periodic load of making a concerted effort sharply reduces its shear strength like this, interstitial water in the sand has little time to dissipate, effective stress significantly reduces or eliminates, sand produces thixotropy, the negative skin friction of pile of prefabricated pile cutoff side weakens or eliminates, thereby the piling oil cylinder only can be passed through prefabricated pile cutoff in layer of sand or the injection bearing stratum with less static pressure.And, the form that the utility model adopts the top clamping of prefabricated pile cutoff and exerts pressure, for the middle part clamping of prefabricated pile cutoff and the form of exerting pressure, the stress of prefabricated pile cutoff is far better, and prefabricated pile cutoff is difficult for damage.Experiment shows: the utility model is compared with existing hydraulic static pile pressing machine, because having adopted the top exerts pressure and the device of cycle exciting, only can reach 400 tons of hydrostatic pile sinking effects with 200～300 tons hydraulic static, significantly reduced the consumption of steel, reduced the cost of production of Static pressure pile driver, promote the technology content of Static pressure pile driver, improved the task performance of pile press complete machine, particularly passed through the ability of sand bed and the ability of pressing the prefabricated pile cutoff of large-tonnage with little counterweight.
Description of drawings
Fig. 1 is a kind of overall structure schematic diagram of top pressing type hydraulic vibration pile press;
Fig. 2 be among Fig. 1 pressure pile standard with the structure for amplifying schematic diagram of interior part;
Fig. 3 analyses and observe the structure for amplifying schematic diagram for bowing of hydraulic exciting device among Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Being the top pressing type hydraulic vibration pile press of walking shown in the figure, can certainly be the top pressing type hydraulic vibration pile press of crawler-type traveling.This pile press comprises the pile frame 1 of a walking, the platform left side of pile frame 1 is furnished with electrical control system 2 and the hydraulic control system 3 that is used for whole pile press, platform the right of pile frame 1 is furnished with crane 11, and the platform intermediate arrangement of pile frame 1 has pressure pile standard 4.Pile pressing beam 6 and hydraulic exciting device 5 are installed in the inner chamber of pressure pile standard 4 from top to bottom, four bights, upper and lower plane of bight and hydraulic exciting device 5 are provided with directive wheel 8 around the pile pressing beam 6, directive wheel 8 rolls with the side elevation of pressure pile standard 4 and cooperates, and pile pressing beam 6 and hydraulic exciting device 5 can be slided up and down smoothly according to the side elevation of pressure pile standard 4.Be provided with piling oil cylinder 7 between pile pressing beam 6 and the hydraulic exciting device 5, the upper end cylinder body of piling oil cylinder 7 is fixed on the bottom of pile pressing beam 6, and the lower end piston rod of piling oil cylinder 7 is hinged on the top of hydraulic exciting device 5.Be connected and installed with clamping device 9 below the hydraulic exciting device 5, clamping device 9 is used for the top of the prefabricated pile cutoff 10 of clamping.The top side of pile pressing beam 6 is provided with the movable clamp 12 of single load bearing, has the draw-in groove 4A that matches with described movable clamp 12 by setting spacing on the pressure pile standard 4, and both cooperate the reaction of bearing when bearing piling.Also be connected with steel wire tow line 4C on the movable clamp 12, steel wire tow line 4C links to each other with a hoisting mechanism by pulley 4B, it can be held assist location when adjusting pile pressing beam 6 positions downwards.
During pressing pile construction, with crane 11 prefabricated pile cutoff 10 is hung in the inner chamber of pressure pile standard 4, and its head is clamped with clamping device 9.When the piston that drives piling oil cylinder 7 by fluid pressure line when hydraulic control system 3 moved downward, its piston rod can shake prefabricated pile cutoff 10 by hydraulic exciting device 5, clamping device 9 and be pressed in the soil layer.When the piston of piling oil cylinder 7 is covered a stroke, unclamp clamping device 9, and the piston retraction of piling oil cylinder 7 is put in place, loosen again and pass pulley 4B and be connected steel wire tow line 4C on the movable clamp 12, pile pressing beam 6, piling oil cylinder 7, hydraulic exciting device 5 and clamping device 9 rely on himself weight to fall to following draw-in groove 4A position, and movable clamp 12 snaps in wherein, can carry out second piling stroke thus.Circulation can be pressed into prefabricated pile cutoff 10 in the soil layer successively.
Above-mentioned hydraulic exciting device 5 preferable form of structure comprise that is equivalent to the vibration casing 5A of pile pressing beam down, the inner chamber both sides horizontal symmetrical of vibration casing 5A is equipped with a pair of eccentric shaft 5C, this end to eccentric shaft 5C keeps the synchronous backward running by gear train 5B, this other end to eccentric shaft 5C then links to each other with a table oil motor 5D separately, provide running power by oil motor 5D, the rotational frequency of oil motor 5D is regulated by the fuel supply flow rate and the force value of hydraulic control system 3.Because the switched in opposite of a pair of eccentric shaft 5C, the hydraulic exciting power size of its horizontal direction is identical, direction is opposite, can cancel out each other in theory; The hydraulic exciting power of its vertical direction then can be superimposed and form exciting and make a concerted effort.Like this, in piling construction, when the natural frequency of soil layer around hydraulic exciting frequency and the prefabricated pile cutoff 10 near the time, this work system of pile cutoff---soil layer will produce resonance, make the soil liquefaction of pile cutoff periphery, can reduce the frictional resistance of soil pile cutoff week side.Apply the static pressure of certain numerical value for again with this understanding prefabricated pile cutoff 10, can make prefabricated pile cutoff 10 under the synthesis of exciting force and static pressure, pass through sandy gravel stratum, eliminate build-in phenomenon, injection bearing stratum, sink to desired location smoothly, improve piling efficient and construction quality.
Claims (3)
1. top pressing type hydraulic vibration pile press, the pile frame (1) that comprises walking or crawler-type traveling, be installed in the pressure pile standard (4) on described pile frame (1) platform, the crane (11) that lifts by crane prefabricated pile cutoff (10) and electrical control system (2) and hydraulic control system (3), it is characterized in that: be provided with from top to bottom in the inner chamber of described pressure pile standard (4) and can link to each other by piling oil cylinder (7) between described pile pressing beam (6) and the hydraulic exciting device (5) along its side elevation vertically mobile pile pressing beam (6) and hydraulic exciting device (5); The top side of described pile pressing beam (6) is provided with the movable clamp (12) of single load bearing, and described pressure pile standard (4) is gone up by setting spacing and had the draw-in groove (4A) that matches with described movable clamp (12); Be connected and installed with clamping device (9) below the described hydraulic exciting device (5), described clamping device (9) cooperates with the top clamping of prefabricated pile cutoff (10).
2. top pressing type hydraulic vibration pile press according to claim 1, it is characterized in that: said hydraulic exciting device (5) has a vibration casing (5A), the inner chamber both sides horizontal symmetrical of vibration casing (5A) is equipped with a pair of eccentric shaft (5C), this end to eccentric shaft (5C) keeps the synchronous backward running by gear train (5B), this other end to eccentric shaft (5C) then links to each other with a table oil motor (5D) separately, and the rotational frequency of oil motor (5D) is regulated by the fuel supply flow rate and the force value of hydraulic control system (3).
3. top pressing type hydraulic vibration pile press according to claim 1 and 2, it is characterized in that: the periphery of said pile pressing beam (6) and hydraulic exciting device (5) is provided with directive wheel (8), and described directive wheel (8) rolls with the side elevation of described pressure pile standard (4) and cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420076525 CN2740667Y (en) | 2004-09-09 | 2004-09-09 | Top-pressure hydraulic vibrating pile press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420076525 CN2740667Y (en) | 2004-09-09 | 2004-09-09 | Top-pressure hydraulic vibrating pile press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2740667Y true CN2740667Y (en) | 2005-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420076525 Expired - Fee Related CN2740667Y (en) | 2004-09-09 | 2004-09-09 | Top-pressure hydraulic vibrating pile press |
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| CN (1) | CN2740667Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605806A (en) * | 2012-03-26 | 2012-07-25 | 浙江大学 | Pile pressing device for model piles of geotechnical centrifugal model tests |
| CN102839668A (en) * | 2012-09-27 | 2012-12-26 | 山河智能装备股份有限公司 | Static pressure pile machine |
| CN104831729A (en) * | 2015-05-11 | 2015-08-12 | 创银机械技术(上海)有限公司 | Impact vibration type pile hammer |
| CN108222535A (en) * | 2017-12-29 | 2018-06-29 | 上海建工集团股份有限公司 | An a kind of column construction method and mechanism of pile |
-
2004
- 2004-09-09 CN CN 200420076525 patent/CN2740667Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605806A (en) * | 2012-03-26 | 2012-07-25 | 浙江大学 | Pile pressing device for model piles of geotechnical centrifugal model tests |
| CN102605806B (en) * | 2012-03-26 | 2014-05-21 | 浙江大学 | Pile pressing device for model piles of geotechnical centrifugal model tests |
| CN102839668A (en) * | 2012-09-27 | 2012-12-26 | 山河智能装备股份有限公司 | Static pressure pile machine |
| CN104831729A (en) * | 2015-05-11 | 2015-08-12 | 创银机械技术(上海)有限公司 | Impact vibration type pile hammer |
| CN108222535A (en) * | 2017-12-29 | 2018-06-29 | 上海建工集团股份有限公司 | An a kind of column construction method and mechanism of pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |