CN101748730B - Multi-function closed cylinder type hydraulic piling hammer - Google Patents
Multi-function closed cylinder type hydraulic piling hammer Download PDFInfo
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- CN101748730B CN101748730B CN200910256527XA CN200910256527A CN101748730B CN 101748730 B CN101748730 B CN 101748730B CN 200910256527X A CN200910256527X A CN 200910256527XA CN 200910256527 A CN200910256527 A CN 200910256527A CN 101748730 B CN101748730 B CN 101748730B
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Abstract
The invention relates to a multi-function closed cylinder type hydraulic piling hammer. The technical scheme is as follows: the multi-function closed cylinder type hydraulic piling hammer is mainly formed by connecting an upper hammer body, a middle hammer body, a lower hammer body and a bottom hammer body, wherein, each of the upper hammer body, the middle hammer body and the lower hammer body respectively forms a closed structure; the lower hammer body mainly consists of a hammer cylinder barrel, an upper hammer core, an upper hammer core sealing device and a gas chamber, the hammer cylinder barrel and the upper hammer core form the gas chamber which is positioned at the upper part of the upper hammer core, when the upper hammer core moves downward, the pressure of the gas chamber provides the downward thrust for the hammer core, the hammer cylinder barrel is provided with a lower hammer core, a lower hammer core sealing device and a vacuum chamber therein, and the suction force of the vacuum chamber provides a downward drawing force for the hammer core. The multi-function closed cylinder type hydraulic piling hammer has the benefits that the action force in the same direction of the downward motion is increased at the upper part and the lower part of the upper hammer core, thereby improving the falling acceleration of the hammer core, improving the hitting energy under the premise of not increasing the weight of the hammer body; meanwhile, due to the adoption of the closed cylinder type structure, the working efficiency can not be affected during underwater operation.
Description
One, technical field:
The present invention relates to a kind of building foundation piling construction machinery, particularly a kind of multi-function closed cylinder type hydraulic piling hammer.
Two, background technology:
At present, be used for the equipment that pile foundation construction impacts piling both at home and abroad and be divided into diesel pile hammer and hydraulic pile hammer, wherein diesel pile hammer exists efficient low, and fuel economy is bad, and environmental pollution is bigger, does not have explosion-proof, can't underwater operation etc. shortcoming.And hydraulic pile hammer is divided into two kinds at present, a kind of is the drop hammer that relies on a power effect of gravity in hammer core dropping process, its acceleration of gravity that can realize is not more than 1 acceleration of gravity, another kind is the double acting jump bit that utilizes the additional active force of gravity and elevating ram top in hammer core dropping process, and this class is hammered attainable whereabouts acceleration maximum into shape and is generally 1.6-2 times of acceleration of gravity.
In addition, existing hydraulic impact hammer hammer core both domestic and external all is in the open type state, promptly hammers core into shape and moves in air, need increase compressed air in the space of hammer body motion when carrying out underwater operation, otherwise, because the resistance of water, with the efficient of influence hammer.
Three, summary of the invention:
Purpose of the present invention is exactly the above-mentioned defective that exists at prior art, and a kind of multi-function closed cylinder type hydraulic piling hammer is provided, and in equal hammer core weight, under the equal lifting height condition, has improved hammer core whereabouts acceleration, thereby has improved the pile hammer blow energy.
Wherein a kind of technical scheme is (have in design on the basis of gas compartment and increase vacuum chamber): mainly connected to form by top hammer body, middle hammer body, bottom hammer body and bottom hammer body, above-mentioned four parts all on an axis, wherein, the top hammer body, middle hammer body, bottom hammer body form closed structure separately respectively; Described top hammer body mainly is made up of elevated pressure nitrogen air chamber, high pressure accumulator, one-way cylinder, low pressure accumulator, and high pressure accumulator, one-way cylinder and low pressure accumulator inlay that to be installed in high pressure nitrogen indoor; Described in the middle of hammer body mainly by inlet valve, join the grease chamber, oil return valve constitutes, inlet valve and oil return valve are installed in joins in the grease chamber; Described bottom hammer body is mainly by the hammer cylinder barrel, last hammer core, last hammer core sealing device and gas compartment constitute, described hammer cylinder barrel and last hammer core form gas compartment, be positioned at the top of hammer core, when last hammer core moves downward, the pressure of gas compartment provides a thrust that moves downward for the hammer core, be provided with down the hammer core in the described hammer cylinder barrel, under hammer core sealing device and vacuum chamber into shape, vacuum chamber is by the hammer cylinder barrel, last hammer core and following hammer core constitute, be positioned at the bottom of hammer core, the suction of vacuum chamber provides a pulling force that moves downward for the hammer core, and the block hitting of replacing direct and in the hammer body of bottom of following hammer core contacts.
Above-mentioned top hammer body mainly connects to form one by elevated pressure nitrogen air chamber, high pressure accumulator, one-way cylinder, low pressure accumulator, the elevated pressure nitrogen air chamber is communicated with the rodless cavity of one-way cylinder, and high pressure accumulator, low pressure accumulator, one-way cylinder inlay all that to be installed in high pressure nitrogen indoor.
Above-mentioned middle hammer body mainly by inlet valve, join the grease chamber, oil return valve constitutes.
Above-mentioned bottom hammer body is installed in the pile protection tube for block hitting by constituting for block hitting and pile protection tube.
Need to prove when needing constant whereabouts acceleration, additional one group of gas storage tank, by tube connector the gas compartment on gas storage tank and the hammer body is coupled together, the air that adds simultaneously certain pressure in gas storage tank in advance, reaching hammer core top has the pressure that variation is little in the process of motion.
In addition, a kind of technical scheme is that (only design have vacuum chamber) mainly connected to form by top hammer body, middle hammer body, bottom hammer body and bottom hammer body, above-mentioned four parts all on an axis, wherein, the top hammer body, middle hammer body, bottom hammer body form closed structure separately respectively; Described bottom hammer body mainly by the hammer cylinder barrel, on hammer into shape core, on hammer into shape the core sealing device, down hammer into shape core, hammer core sealing device and vacuum chamber into shape down and constitute, be provided with down the hammer core in the described hammer cylinder barrel, hammer core sealing device and vacuum chamber into shape down, vacuum chamber by the hammer cylinder barrel, on hammer into shape core and down the hammer core constitute, be positioned at the bottom of hammer core, the suction of vacuum chamber provides a pulling force that moves downward for the hammer core, and the block hitting of replacing direct and in the hammer body of bottom of following hammer core contacts.
Above-mentioned top hammer body mainly connects to form one by elevated pressure nitrogen air chamber, high pressure accumulator, one-way cylinder, low pressure accumulator, the elevated pressure nitrogen air chamber is communicated with the rodless cavity of one-way cylinder, and high pressure accumulator, low pressure accumulator, one-way cylinder inlay that to be installed in high pressure nitrogen indoor.
Operating principle and process prescription are as follows:
The hydraulic oil that hydraulic power unit provides enters hydraulic pile hammer, and when the inlet valve unlatching, when oil return valve was opened simultaneously, hydraulic pressure unit came oil to get back to hydraulic pressure unit through pile hammer, and system carries out preheating; When inlet valve cut out, high pressure accumulator was oil-filled;
During piling work, at first be that high pressure accumulator is oil-filled, when accumulator oil-filled when the system pressure, inlet valve is opened, oil return valve cuts out, and hydraulic oil enters the one-way cylinder rod chamber, the energy that hydraulic oil provides, overcome the pressure that one-way cylinder piston top nitrogen chamber produces, the pressure of last hammer core upper gas chamber, on hammer the suction of core bottom vacuum chamber and frictional force and other mechanical resistances into shape, the hammer core is up in the lifting, is gone up the lifting height of hammer core by control module control.When last hammer core rises to setting height, close inlet valve.This moment, inlet valve, delivery valve all were in closed condition, on hammer core into shape and hover over desired location.When last hammer core hovers over desired location, open delivery valve, last hammer core is at self gravitation, one-way cylinder piston top nitrogen pressure, on hammer core upper air pressure into shape, and under the effect of upper piston bottom vacuum chamber pull of vacuum, overcome oil extraction resistance in the one-way cylinder rod chamber, and the influence of seal friction power and other mechanical resistances, move downward.Last hammer core moves downward process mesolow accumulator and absorbs the hydraulic oil of discharging in the one-way cylinder rod chamber, thereby reduces because long pipe runs to the influence of oil extraction speed, reduces the oil extraction resistance.When last hammer core moves to down the hammer core, bump, following hammer core moves downward, and drives moving downward for block hitting and stake pipe of contact with it.
The present invention adopts closed structure in addition, and is the same with operation in air during operation under water, need not additional other devices.
The invention has the beneficial effects as follows:, can improve the whereabouts acceleration of hammer core, thereby under the prerequisite that does not increase hammer body weight, improve blow energy by increasing the active force identical with moving downward direction in last hammer core upper and lower; Owing to adopt the closed cylinder type structure, during underwater operation, the operating efficiency of hammer can not be affected simultaneously.
Four, description of drawings:
Accompanying drawing 1 is a systematic schematic diagram of the present invention;
Accompanying drawing 2 is structural representations of embodiments of the invention 1;
Accompanying drawing 3 is embodiments of the invention 2 structural representations;
Accompanying drawing 4 is embodiments of the invention 3 structural representations;
Accompanying drawing 5 is embodiments of the invention 4 structural representations;
Among the last figure: elevated pressure nitrogen air chamber (1), high pressure accumulator (2), one-way cylinder (3), low pressure accumulator (4), gas compartment (5), sensor (6), on hammer into shape core (7), on hammer into shape core sealing device (8), vacuum chamber (9), down hammer into shape core (10), down hammer into shape core sealing device (11), for block hitting (12), pile protection tube (13), hammer cylinder barrel (14), inlet valve (15), join grease chamber (16), oil return valve (17), tube connector (18), gas storage tank (19), hydraulic pressure unit (20).
Five, the specific embodiment:
Embodiment 1:(design has gas compartment and vacuum chamber)
With reference to attached Fig. 1 and 2, the hydraulic pile hammer system that the present invention uses comprises: hydraulic power unit HPU, and hydralic hose winch (optional), hydraulic pile hammer PHD, control module CSU forms.
The composition of hydraulic pile hammer hammer body of the present invention: by elevated pressure nitrogen air chamber 1, high pressure accumulator 2, one-way cylinder 3, low pressure accumulator 4, gas compartment 5, sensor 6, on hammer into shape core 7, on hammer into shape core sealing device 8, vacuum chamber 9, down hammer into shape core 10, down hammer into shape core sealing device 11, for block hitting 12, pile protection tube 13, hammer cylinder barrel 14, inlet valve 15, join grease chamber 16, oil return valve 17 is formed.For the operating mode of using the pile frame condition is arranged, can omit the pile protection tube.Its middle and upper part hammer body, middle hammer body, bottom hammer body and bottom hammer body connect to form one, above-mentioned four parts all on an axis, wherein, the top hammer body, middle hammer body, bottom hammer body three parts form closed structure separately respectively; Described bottom hammer body mainly by hammer cylinder body 14, on hammer into shape core 7, on hammer into shape core sealing device 8, down hammer into shape core 10, hammer core sealing device 11, low-pressure gas chamber 5 into shape down, vacuum chamber 9, sensor 6 constitute, described hammer cylinder barrel 14 and last hammer core 7 form gas compartment 5, be positioned at the top of hammer core 7, when last hammer core 7 moved downward, the pressure of gas compartment provided a thrust that moves downward for the hammer core; Hammer is provided with play hammer core 10 in the cylinder barrel 14, hammers core sealing device 11 and vacuum chamber 9 into shape down, vacuum chamber 9 by hammer cylinder barrel 14, on hammer into shape core 7 and down hammer core 10 constitute, be positioned at the bottom of hammering core 7 into shape, the suction of vacuum chamber provides a pulling force that moves downward for last hammer core 7.
The top hammer body mainly connects to form one by elevated pressure nitrogen air chamber 1, high pressure accumulator 2, one-way cylinder 3, low pressure accumulator 4, elevated pressure nitrogen air chamber 1 is communicated with the rodless cavity of one-way cylinder 3, and high pressure accumulator 2, low pressure accumulator 4, one-way cylinder 3 are all inlayed and be installed in the elevated pressure nitrogen air chamber 1.Middle hammer body mainly by inlet valve 15, join grease chamber 16, oil return valve 17 constitutes.The bottom hammer body is installed in the pile protection tube 13 for block hitting 12 by constituting for block hitting 12 and pile protection tube 13.
High pressure accumulator 2, low pressure accumulator 4, one-way cylinder 3 are all inlayed and are installed in the elevated pressure nitrogen air chamber 1, elevated pressure nitrogen air chamber 1 is communicated with the rodless cavity of one-way cylinder 3, form the bigger nitrogen chamber of volume, guarantee in the course of the work, remain in elevated pressure nitrogen air chamber 1 pressure in the less pulsation scope, the piston rod of one-way cylinder 3 passes joins grease chamber 15 and is connected with last hammer core 7; The grease chamber 16 of joining that inlet valve 15 and oil return valve 17 are installed is connected with the bottom of elevated pressure nitrogen air chamber 1, and the top with hammer cylinder body 14 is connected simultaneously.Last hammer core 7 is installed in the hammer cylinder body 14, on hammer core 7 into shape and seal by forming between last hammer core sealing device 8 and the hammer cylinder body 14.Join between grease chamber 16 and the last hammer core 7 and in hammer cylinder body 14, form gas compartment 5.Under hammer core 10 into shape and also be installed in the hammer cylinder body 14, play hammer core 10 seals by forming between hammer core sealing device 11 down and the hammer cylinder body 14, between following hammer core 10 and the last hammer core 7 in hammering cylinder body 14 into shape formation vacuum chamber 9.Be installed in the pile protection tube 13 for block hitting 12, be installed to the bottom of hammer cylinder body 14 then by bolt.During piling work, when control module control is gone up the hammer core when the action of gravity of hammer core moves downward, the pressure promotion piston of the high pressure nitrogen on one-way cylinder 3 rodless cavities moves downward on the one hand, piston is delivered on the hammer core 7 by the pressure of piston rod with high pressure nitrogen, pressure on the gas compartment 5 also acts on hammer core 7 tops on the other hand, and hammer core 7 moves downward in the promotion.Vacuum chamber 9 forms pull of vacuum in the bottom of last hammer core 7 on the one hand again, and hammer core 7 moves downward in the pulling.Last hammer core 7 is at gravity, high pressure nitrogen thrust, and low-pressure gas thrust, the acting in conjunction of pull of vacuum moves downward at a high speed down.
The present invention applies an active force respectively in the upper and lower of hammer core except that utilize the additional active force of gravity and elevating ram top in hammer core dropping process, make the hammer core in the process that falls, on the hammer core direction of motion, many two active forces than present hydraulic pile hammer, there are 4 active forces identical to act on the hammer core altogether with the hammer core direction of motion, be used on the hammer core thereby have, obtain bigger whereabouts acceleration in the process that the hammer core is fallen greater than the plural masterpiece identical with the direction of motion.The blow energy that obtains under the prerequisite of the equal height of drop of equal hammer core weight is 1.5-2 a times of existing hydraulic impact hammer.Can realize hammer core whereabouts acceleration 3-4 acceleration of gravity doubly in less expensive ground according to this invention of present technical condition.
Embodiment 2:
With reference to accompanying drawing 3, another kind of form of structure of the present invention (increase gasholder): other structures are with embodiment 1, difference be when the piling need of work higher and and fixedly during acceleration, can increase gas storage tank 19, with sebific duct 18 gas storage tank 19 and low-pressure gas chamber 5 are coupled together, form the bigger gas compartment of volume, add certain pressure in advance, when last hammer core 7 moves back and forth since the space that gasholder and gas compartment form greatly greater than the low-pressure gas chamber 5 in the hammer cylinder body, therefore when last hammer core 7 moves back and forth because the relative volume variation is less, therefore 5 pressure can not produce big variation owing to the reciprocating motion of last hammer core 7 in the low-pressure chamber, and the active force of guarantee effect on last hammer core 7 keeps constant thus.
Embodiment 3:
With reference to accompanying drawing 4, a kind of form of structure (design has vacuum chamber) of multi-function closed cylinder type hydraulic piling hammer hammer body structure of the present invention, in the structure of this embodiment, there is not gas compartment 5, when last hammer core 7 moved downward, the power identical with the direction of motion had three, was respectively the gravity of going up hammer core 7, the thrust that the pressure of one-way cylinder 3 piston upper gas forms, on hammer the pulling force that the pull of vacuum of core 7 bottom vacuum chambers 9 forms into shape.
Other structures of the present invention are with reference to embodiment 1, difference is that upward hammer core top is open architecture, be provided with more than one perforate, hammer is provided with down in the cylinder barrel 14 and hammers core 10 into shape, hammers core sealing device 11 and vacuum chamber 9 into shape down, vacuum chamber 9 by hammer cylinder barrel 14, on hammer into shape core 7 and down hammer core 10 constitute, be positioned at the bottom of hammer core 7, the suction of vacuum chamber provides a pulling force that moves downward for the hammer core.
This programme is except that utilizing the additional active force identical with the hammer core direction of motion in gravity and elevating ram top in hammer core dropping process, apply in the bottom of hammer core one with hammer the identical active force of the core direction of motion into shape, make the hammer core in the process that falls, on the hammer core direction of motion, Duo an active force than present hydraulic pile hammer, there are 3 active forces identical to act on the hammer core altogether, obtain bigger whereabouts acceleration in the process that the hammer core is fallen with the hammer core direction of motion.
Embodiment 4:
With reference to accompanying drawing 5, a kind of form of structure (design has gas compartment) of multi-function closed cylinder type hydraulic piling hammer hammer body structure of the present invention, in this enforcement structure, there is not vacuum chamber 9, when last hammer core 7 moved downward, the power identical with the direction of motion had three, was respectively the gravity of going up hammer core 7, the thrust that the pressure of one-way cylinder 3 piston upper gas forms, on hammer the thrust that the pressure of core upper gas chambers 57 forms into shape.
Structure of the present invention is with reference to embodiment 1, and difference is that the inside of hammer cylinder barrel 14 is provided with hammer core 7 and last hammer core sealing device 8, on hammer core 7 into shape and directly with for block hitting 12 contact owing to hammer core 10 into shape, hammer core sealing device 11 into shape down, so do not form vacuum chamber 9.
This programme is except that utilizing the additional active force identical with the hammer core direction of motion in gravity and elevating ram top in hammer core dropping process, apply on the top of hammer core one with hammer the identical active force of the core direction of motion into shape, make the hammer core in the process that falls, on the hammer core direction of motion, Duo an active force than present hydraulic pile hammer, there are 3 active forces identical to act on the hammer core altogether, obtain bigger whereabouts acceleration in the process that the hammer core is fallen with the hammer core direction of motion.
Claims (6)
1. multi-function closed cylinder type hydraulic piling hammer, it is characterized in that: mainly connect to form by top hammer body, middle hammer body, bottom hammer body and bottom hammer body, above-mentioned four parts all on an axis, wherein, the top hammer body, middle hammer body, bottom hammer body form closed structure separately respectively; Described top hammer body mainly is made up of elevated pressure nitrogen air chamber (1), high pressure accumulator (2), one-way cylinder (3), low pressure accumulator (4), and high pressure accumulator (2), one-way cylinder (3) and low pressure accumulator (4) are inlayed and be installed in the elevated pressure nitrogen air chamber (1); In the middle of described hammer body mainly by inlet valve (15), join grease chamber (16), oil return valve (17) and constitute, inlet valve (15) and oil return valve (17) are installed in joins in the grease chamber (16); Described bottom hammer body is mainly by hammer cylinder barrel (14), last hammer core (7), last hammer core sealing device (8) and gas compartment (5) constitute, described hammer cylinder barrel (14) and last hammer core (7) form gas compartment (5), be positioned at the top of hammer core (7), last hammer core (7) is when moving downward, the pressure of gas compartment provides a thrust that moves downward for the hammer core, be provided with down hammer core (10) in the described hammer cylinder barrel (14), under hammer core sealing device (11) and vacuum chamber (9) into shape, vacuum chamber (9) is by hammer cylinder barrel (14), last hammer core (7) and following hammer core (10) constitute, be positioned at the bottom of hammer core (7), the suction of vacuum chamber provides a pulling force that moves downward for the hammer core, and following hammer core (10) block hitting (12) of replacing direct and in the hammer body of bottom contacts.
2. multi-function closed cylinder type hydraulic piling hammer according to claim 1 is characterized in that: described elevated pressure nitrogen air chamber (1) is communicated with the rodless cavity of one-way cylinder (3).
3. multi-function closed cylinder type hydraulic piling hammer according to claim 1 is characterized in that: described bottom hammer body is installed in the pile protection tube (13) for block hitting (12) by constituting for block hitting (12) and pile protection tube (13).
4. multi-function closed cylinder type hydraulic piling hammer according to claim 1 is characterized in that: described gas compartment (5) is communicated with the gas storage tank (19) that adds by tube connector (18), adds the air of certain pressure in gas storage tank (19) in advance.
5. multi-function closed cylinder type hydraulic piling hammer, it is characterized in that: mainly connect to form by top hammer body, middle hammer body, bottom hammer body and bottom hammer body, above-mentioned four parts all on an axis, wherein, the top hammer body, middle hammer body, bottom hammer body form closed structure separately respectively; Described bottom hammer body is mainly by hammer cylinder barrel (14), last hammer core (7), last hammer core sealing device (8), under hammer core (10) into shape, under hammer core sealing device (11) and vacuum chamber (9) into shape and constitute, be provided with down hammer core (10) in the described hammer cylinder barrel (14), under hammer core sealing device (11) and vacuum chamber (9) into shape, vacuum chamber (9) is by hammer cylinder barrel (14), last hammer core (7) and following hammer core (10) constitute, be positioned at the bottom of hammer core (7), the suction of vacuum chamber provides a pulling force that moves downward for the hammer core, last hammer core top is open architecture, and following hammer core (10) block hitting (12) of replacing direct and in the hammer body of bottom contacts.
6. multi-function closed cylinder type hydraulic piling hammer according to claim 5, it is characterized in that: described top hammer body mainly connects to form one by elevated pressure nitrogen air chamber (1), high pressure accumulator (2), one-way cylinder (3), low pressure accumulator (4), elevated pressure nitrogen air chamber (1) is communicated with the rodless cavity of one-way cylinder (3), and high pressure accumulator (2), low pressure accumulator (4), one-way cylinder (3) are inlayed and be installed in the elevated pressure nitrogen air chamber (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910256527XA CN101748730B (en) | 2009-12-15 | 2009-12-15 | Multi-function closed cylinder type hydraulic piling hammer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910256527XA CN101748730B (en) | 2009-12-15 | 2009-12-15 | Multi-function closed cylinder type hydraulic piling hammer |
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| Publication Number | Publication Date |
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| CN101748730A CN101748730A (en) | 2010-06-23 |
| CN101748730B true CN101748730B (en) | 2011-06-15 |
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| CN200910256527XA Expired - Fee Related CN101748730B (en) | 2009-12-15 | 2009-12-15 | Multi-function closed cylinder type hydraulic piling hammer |
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| CN113670641B (en) * | 2021-08-14 | 2024-01-30 | 海洋石油工程股份有限公司 | Underwater test platform for hydraulic pile hammer |
| CN116792362A (en) * | 2023-06-29 | 2023-09-22 | 徐州徐工挖掘机械有限公司 | Reciprocating driving device, breaking hammer, pile driving hammer and soil rammer |
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| US5277264A (en) * | 1992-01-15 | 1994-01-11 | Soosan Heavy Industries Co., Ltd. | Hydropneumatic hammer |
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| CN101748730A (en) | 2010-06-23 |
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