Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
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THE INSTRI)CTION 10
THE HYDRRAULIC MOVABLE BF~SE FRAME PRESSURE-PILE DRIVER
1: This inventation involves a basic pole driving equipment in
foundation construction. It i9 a pressure-pile driver which drives baqe
piles by pressing or hitting.
2: Having intrieved World Patents Index and other information, we didn't
find the same subject related to the inventation. The existing equi~nent
of driving the con~truction's base piles - pile driver, i9 a
crawler diesel pile driver. It consists of a diesel hammer, a guide rod,
a diagnal brace, an A-type support frame, a hoist, a base frame, a
movable structure and an operating control system. The guide rod is
installed in the front end of the base frame and it is located by the
diagnal brace wiht a hydraulic oil cylinder. The diésal hammer is
installed around the guide rod. The hammer can move up or down on the rod
when it is driven by the hoist on the base frame. The A-type support
~rame in the center of the base frame is used for driving the guide rod
when installing it. The base frame can revolution the crawler moving
structure. The pile-driver produces a loud noise, a great vibration and a
serious environmen~al pollution in construting,especially when it is used
in residential area and high rise building district for pile driving, it
will influence the buildings around. And this will also affect the
residents' living condition. Because the height of the guide rod and
hammer's hanging is increased along with the pile's length, this will
lead to the unstability of the base frame and affect the ~afety of
operating. In order to overcome the shortcomings of this hitting type of
pile driver, there already has been a presqure-pile driver. It consi~ts
of a movable box-type base frame, a head tree, a pile-holder that can
hold and press piles, and a hydraulic equipment system. The head tree is
formed by four channal teel piles in the base frame. Each channal steel
pile equips a guide track for the pile-holder's moving up and down. And
~t the top of the steel piles installs hydraulic oil cylinders which they
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are equipped mutually perpendicularly. The oil cylinders' piston bars are
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connected with the pile-holder. The pile holder consist~ of four pieces
of interindependant clamping plates and four interindeFendant chucX
bodies, hydraulic oil cylinders and roller device. They are respectively
set up on the guide tracks of the four channal steel piles. That is to
say, the four chuck bodies equipped clamping plates are seperately
connected with the hydraulic oil cylinder's piqtons, which they drive the
chuck bodies moving horizonly or vertically. The baqe frame is installed
on the movable mechanism by the support bracket3 and the circular channel
revolution mechanism. The movable m2chanism has two groups of boatboots
~ouching the grounel. The one group boatbootq is installed in the
transversal ends of the base frame, it is called to be the longideinal
movable bcatboots. The other group boatboots are installed in the
longitudinal ends of base frame, they are called to be the transvecsal
movable boatboots. The base frame i~ connected with the boatboots by the
support brackets hinged in the base frame and the support legs that are
installed in the brackets and controlled by the oil cylinders. This kind
of nressure pile driver's weakneq~ is that when clamping a pile, it must
ep~l y the force fram the four direction. ~n the one hand, the
displacements from the four directions are difficult to adjust uniformly
as clamping a pile, that is to say, it is difficult to adjust the
csn.or's ~osition. And more, the direction's guide when pressing piles
dependq on the four channal steel piles. If they are not uniform, this
will affect the force of pressing pile. an ~he other hand, the resultant
clampiAg forces from four directions that the chuck b~dies clamp the pile
is equal to the force of one oil cylinder's driYing. So the force of
clam~ing piles is hard to increase substantially. This kind of pressure
pile driver's brackets are equipped on the base'i frame by hinge
construction, S when supporting the base frame, it must be operated by
people and fixed by overarm support. Thus the labor intensive of
operating is great, and more, the supporting distance limited by
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the length of the bracket can not be adjusted freely. This is unfavorable
for pressing pile in special con~ition, as pressing the broder piles.
Moreover, the revoluting rnechanism of the base frame of this pressure
pile driver is an arc type guide groove structure, its shortcoming i9
that it i5 easy to be extruded to stop up when revoluting in load
condition, and the angel of revolution is also srnall. Especially, each of
the two machines has only one function. In order to adapt to the
different construction condition~ and various demands, it must equip this
two types of pile driving mechanism, this is a~ked to -increase
investment.
The purpose of this inventation is to supply a pressuee-pile driver
for hitting and pressing piles. And rnore~ the key parts" the head tree,
the pile-holder and the base frame's supporting and rnoving mechanism have
all been designPd again. Thu3, when clarnping and pressing piles, the
para-poiition is accurate, the clamping force i8 great, the direction's
guide is fine and also guarantee that the base frame has a fairly good
stability in different construction condition.
In order to eealize the purpose, in its technical scheme, the
Hydraulic Movable 8ase Frame Pressure-Pile Driver consists of a hydraulic
mov~ble base frame, a gate-type head tree which be installed with a
box-type pile-holder foe d amping and pressing piles, a guide rod that
can be used for hanging hammer in hitting piles and lifting piles into
the head tree in precsing pile~. A teaction guide rod and an oil rnotor
for lifting piles are installed on the base frame. The ga~e-~ype head
tree is formed by two channel piles. And it i9 in the center of the base
frarne. At the top ot the head tree installs a hydraulic rise-falling oil
cylinder equipment that the cylinders are equipped inter perpendicularly.
The box-type pile-holder is installed on the guide track of the hsad
tree. The rise-falling oil cylinders' piston kars aee connected with the
pile holder. A pulley mechanism is installed at the top sueface of the
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head tree for ~assing wire ropes to lift and eq~ip the guide rod. The
guide rod is installed with the guider abutment at the end of the baqe
frame and is hinged with the hydraulic diagnal brace that is in two ends
of the head tree on the baYe frame. On the top of the guide rod there
equips a turning crane. It is used for lifting piles into the!head tree.
The hydraulic elongate-shortening brackets are in~talled under two slde
of the base frame. The brackets are equipped with supporting legs. ~he
supporting legs in two ends of the base frame are built in the
longitudinal movable boatboots, the central supporting le~s are built in
the tran~versal movable boatboots. The box-type pile holder in the
inventation includes ~our pieces of clamping plates, two chuck bodie.~,
box and two group~ of all cylinders. The two chuck bodies are in~talled
in the box. Each chuck body has been equipped wlth two inter
perpendicular-installed clamping plate~. The oil cylinders' piston bar~
are connected with the chuck bodies. For this pile holder, the piston
bars will pull or push the chuck bodies moving the box when the hydraulic
oil cylinders are Rwitched on. Thu~ the two chuck bodies will draw
closely or separately and there by clamp or loose the pile in the center.
The piston bar will lift up or put down the pile holder when switching on
the hydraulic rise-falling oil cylinder on the head tree. That the piston
bars lift up the pile-holder is clamping the pile in upper position of
the pile. That the piston bars put down the pile holder is pressing the
pile.
In vrder to make the invented pile holder have greater clamping
force, we can equip a multiplying power lever between the hydraulic oil
cylinder and the chuck body. And the two chuck bodies in the box i~
differently de~igned be a fixed chuck body and a moving chuck body. This
i~ to say that ~ne chuck b~dy is fixed to in~tall on one side of the box.
The other chuck body is installed on the other side of the box by the
axle of force application through the two sidewalls of the box in the
form of the sliding fit.The multiplying power levers are symmetrically
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hinged in the ~wo sidewalls of the box. The hydraulic oil cylind~rs are
symmetrically equipped out of the two sidewalls of the box. The piston
bars of the oil cylinders are hinged with the ends of force application
of the multiplying power levers. The force outlet end of the multiplying
power lever is hinged with the axle of force application of the moving
chuck body. This kind of the pile-holder with the multiplying power make
a greater clamping force between the clamping plates of the chuck bodies
when the oil cylinders are switched on.
Considering to construct in different conditions, there may be
different geometry pile~. In order that the clamping plates of the pile
holder have a fine conduct with the different geometry piles and make the
clamping surface of the pile bear the force uniformly. We can connect
the four clamping plates with the chuck bodies by axle pins and make the
clamping plates have self-modulation ability in pressing piles.
In order to make the part of the elongate-shortening of the brackets
longer, the two brackets which is ~ymmetrically in the two sides of the
base frame can be installed in the same sliding groove and bP connected
with a pair of brakets by a group of horizonally elongate-shortening
b~-head hydraulic oil cylinders. This shortens equipment position than
the one head oil cylinder. So it will increase the length of the brackets
relatively. The bi-head oil cylinder and the two symmetric brackets are
in~talled in the sliding groove in the base frame. The oil cylinder is
installed by the hinge in its central part and the cardan shaft hinge
fork connected with the hinge ax}e in the cardan shaft hinge case that is
fixed on the bdse frame. The piston bars of the oil cylinder are
art~culated with the elongate-shortening brackets. To this
elongate-shortening brackets, the piston bar drive the brackets to
elongate or shorten when the bi-head oil cylinder is switched on. The two
brackets can be controlled to elongate or shorten sym~etricly or
asymmetricly.
The following is the working orders of the invented pressure-pile
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driver. When preparing ~o use the equipmen~ for hitting piles, operate
the hydraulic oil cylinder control system to drive the equipment to the
piling position. using the oil motor, the diagnal brace and the puliey
structure on the gate type head tree, hinge the q~ick rod and hang the
ham~er, and o begin to pile. After having accomplished the first pile,
operate tha movable structure to arrive at the cecond pile 1 9 drivlng
position, and begin to pile. When preparing to use the equipment for
pres~ing piles, after the equipment has arrived at the pile' 9 pressing
position. At first, switch on the oil motor, lift up the pile by the
turning crane on the top of the guide rod, and adjuQt the diagnal brace
t~ make th:~ guide rod incline to the gate-type head tree in order to put
the pile into the clamping plateq of the pile-holder on the head tree.
Then cpera.2 the rise-falling oil cylinder on the head tree to make the
pile halder rise to the full. Now, operate the oil cylinder equipment of
the head tree to drive the pile holder fall down to the lowest limit.
Thus the pile has been pres~ed into the soil layer. When adjusting the
base ~ra~,e's position. It onl~,~ need adjust the movable ~tructure's
loc1ting condition.
Thus it can be seen, the inventation possesses two functions for
tin~ a~ pressing piles. When the invented piled driver is used for
~riving pilas, its base frame is stable,When it is used for pressing
pile4~ it _an put into the piles by itself. When clamping and pressing
pile~, the para-position is accurate, the clamping force is great and the
direction's guide is fine. The designed vable base frame make the
equipment i~ conveni~n~ move and easy to adjust. Adjusting the length
of the elcngate-shortening brackets can increase the ~pan of the base
~ram~ and im,~rove the stability, when hitting piles. Shorting the lenyth
o~ ~'na br._;;ats can satisfy to press the border p~le~ when pressing
pileq.
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INSTRUCTION TO FIGURES
Figure 1 i~ a Qtructure abridged general view of this inventation.
Figura 2 is a vertical view of the pile holder in the inventation
Figure 3 is a front view of the pile holder shown in Figure 2.
Figure 4 is a longitudinal sectional view of the part of the base
frame in Figure l near the elongate-shortening brackets. It indicates the
bracket's elongate-shortening structure.
Figure 5 is a structure abridged general view of the transversal
movable boatboots in ~igure l.
Figure 6 is the ~tate abridged general view of the base frame's
revoluting in the inventation.
Now, we illustrate the inventation farther combined with Figures.
According to the Figure 1, the base frame l of the pressure-pile
driver is in talled above the longitadinal movable boatboots lO and
trancversal ~ovable bo~tboots ll by the elongate-shortening brackets 9
and the rise-falling suppout leg 8. The transvers l movable boatboots i~
a double-skin-construction. The two layers are hinged with the different
revolution hinge 12. The guide rod abutment 14 is in the left end of the
base frame. The guide rod 2 is installed in it and can swing around its
~up~ort axle. The upper part of the guide rod~ i3 hinged with the diagnal
brace with a hydraulic oil cylinder. ~he diagnal brace 5 have fixed the
guide rod 2 on the base frame. At the top of the guide rod 2 also equip
the turning crane 4 for lifting piles. The hammer for pile driving is
hur,~ on the guide rod 2.The gate-type head tree 6 is fixed to install in
the center of the ba~e frame 1 and i9 formed by two channel vertical
posts. The pulley mechani~m 17 i~ equippped at the top surface of the two
vertical Eosts. The hydraulic rise-falling oil cylinder 16 i~ installed
at the top of the head teee. The guide track 15 ic equipped in the inner
wall and the pile holder 7 is eguipped in the inner cavity. The pile
holder is set up on the guide tracks 15 of the post by the roller
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mechanism at the top of the head tree, and i9 hinged with the pi~ton bar
of the rise-falling oil-cylinder 16. Therefore, the eiongating or
qhortening of the piston bar can driver the pile holder 7 move down or up
along with the guide track 15. Seen from the figure, on the base frame 1,
there equips the oil motor 13 for lif~ing the guide rod 2, the hammer 3
and the pileq.
~ igure 2 and 3 have ~hown that there is a pile holder for clamping
and pre~sing piles on the guide track 15 of the vertical post of the gate
type head tree. Shown in the figure, the pile-holder includec the box 18,
the movable chuck body 21, the fixed chuck body 24, the clamping plates
23 and 25, the hydraulic oil cylinder 26 and 30, the multiplying power
lever 36. The two chuck body 21 and 24 are installed in the box 18, and
the fixed chuck body 24 is fixed to equip in the right side of the box.
The movable chuck body 24 is set up in the left side of the box 18 in the
form of sliding fit, and i9 connected with the box by the axle of force
application 29 on it. Thé chuck body 21 and 24 have each equipped two
perpendicular clamping plates. The two pieces of clamping plates 23 is
hinged on the movable chuck body 21 by axle pin 22. The other two pieces
of the cl~mping plates 25 i5 hinged on the fixed chuck body 24 by axle
pin 22. At the two ends 29 and 33 of the box 18 install~ a roller
mechanism to roll on the guide track of the gate-type head tree. ~he axle
of the roller is fixed in the box 18. The roller 28 is equiper on it. Out
of the two side~;allc 27 and 31 of the box, a multiplying power lever 36
including a multiplying power arm 3S and a track rod 40 is symmetricaly
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equipped by axle pin 39. At the end of the longer arm 34 of the
multiplying power arm has hinged the gydraulic oil cylinder 26 ~nd 30
whic~h they are horizonally installed. m e piston bar 20 and 32 is hinged
with the longer arm 34 of the multiplying power arm. The bottomLq of the
oil cylinder 26 and 30 are hinged with the roller axle of tha box body.
One end of the track bar 40 is hinged with the ~horter part of the
multiplying power arm 3S of the multiplying power lever 36. The other end
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iQ hinged with the axle of force application 19 of the movable chuck body
21. To this kind of pile holder, the piQton 20 and 32 will drive the
multiplying power arm to swing when switching on the oil cylinder out of
the box. If the piston bar elongates, the track bar 40 of the multiplying
power lever 36 draw~ the axle of force application 19 to drive the
movable chuck body 21 moving toward the central position which is
confined by the two ~idewalls of the box 18 (Thi~ is moving toward the
fixed chuck body), The clamping plates 23 and 25 will clamp the pile: If
the piston bar shortens, the direction of the acting force is opposite to
the above, the clamping plates will loosen the clamped pil~. In Figure 3,
the elavator ball-seating 41 is fixed and equipped in the two ends of the
box 18. The ball head of the piston bar 37 of the hydraulic rise-falling
oil cylinder on the head tree is built in the ball-seating. The piston
bar's rising or falling will drive the pile holder up or down.
Figure 4 has clearly shown the connection structure of the two
elongate-shortening brackets which locate on the same vertical section of
the baqe frame in the base frame's moving structure. Seen from the
figure, the two brackets 44 and 48 is symmetricly installed in the
sliding gro~ve 43 on th~ base frame 1 and also can elongate or shorten in
it. Each end of the brackets has perpendicularly set up the supporting
lc~9 oil cylinder 42 and SO. On the base frame 1 with the sliding groove
43 equips a cardan shaft hinge ca~e 52. It makes that the bi-head oil
cylin~er 45 of the bracket 44 and 48 is installed in the cardan shaft
hinge case 52 by the axle hinge 46 in its center and ~he cardan shaft
hinge fork 47 articulate with the axle hinge. The two pi~ton bars of the
bi-head oil eylinder 45 are hinged with the end of the two brackets by
locating axle 49 and 53. The 51 and 54 in the figure are the piston bars
of the supporting legs' oil cylinder 42 and 50. Their ends are built in
the movable bcatboots.
Shown in the Figure 5, the transver~al movable boatboots i~
double-skin construction. It i9 formed by the boots body 56 and the boots
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bottom 55. The ~oots bottom 55 equipC a central revolution axle 4eat 64
and four groups of revoluting ball block 63 that they are arranged in an
arc type. The boot~ body 56 is installed on the revolution axle seat 64.
In the body 56 equip two supporting vehicle 57 and 62 and a hydraulic oil
cylinder 58. The vehicle can roll on the guide trac~ 59 in the boot~
body. The qupportinglegs' ball block 61 i9 installed on the top of the
two vehicles. The ball gead 60 of the supporting leg eguipped in the
brackets i~ built in it. Thi~ is to say that the baqe frame 1 in thi~
inventation is installed on the vehicies in the boatbootq by the bracket
44, 48 and the supporting leg~' ball head 64. The one vehicle 57 of two
vehicles is hinged with the piston ~ar of the oil cylinder 58.The root
of the oil cylinder is hinged with the boots body located in one side of
the other vehicle 62. To this tran~versal movable boatboots' structure,
when the piston bar of the oil cylinder 58 elongates, the piston bar
drives the vehicle 57 drive the base frame 1 moving toward the left. At
same time, the base frame 1 draws the vehicle 62 rolling toward the left
and the base frame keep to the left. It must indicate that the
transversal movable boatb~ots 11 now is hanging in the air and that the
longitadinal movable boatboots touch the ground and supports the whole
weight o~ tl1e equipment. So when the piston of the oil cylinder 58
shortens into the oil cylinder, as the weight on the vehicle is greater
than on the boatboots, the oil cylinder push the transversal boatboots to
the left by the hinge axle at the root of the oil cylinder, until the
right side of the vehicle 62 in the boots body 56 roll to the right side
of the boots body. mis also can be said that the vehicle 57 and 62 both
stop and the boatboots m~ve~ toward the left relatively until the right
side vehicle closes to the right end of the boatboots. SD a working
process of the oil cylinder 58 (an elongating and a ~hortening ) drives
the movable boatboots stepping a pace toward tha left (about 1.5m). On
the contrary, it is similar~
Figure 6 indicate3 the state that the base frame has revolved once in
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the former position around the tran~ersal movable boatboots 11. When the
base frarne 1 is in the normal state (The longitudinal movable boatboots is
perpendicular to the transversal movable boatboots), drive the longitudinal
rnovable boatboots departing frorn the ground and the tran~versal r~Dvable
boatboots supporting the weight. And switch on the oil cylinder 581 and 582
at the sarne time. Thus m3Xe the piston bar of the 581 elongate and the
piston bar of the 582 shorten. And the vehicle 571 connected with the 581
drives the base frame 1 displacing toward the left, but the vehicle 572
connected with the 582 drives the ba~e frarne 1 displacing toward the right.
So the base frame 1 i9 produced an anti-clock wise moment of force and make
the boots body 561 and 562 revolution axle seat 641 and 642 in the
anti-clock wiqe direction related to the boots bottom 551 and 552.
Therefore the base frarne 1 can revolve an angle in the anti-clock wi~e
direction too. Moving opposi~ing to the above, it also oan drive the base
frame 1 revolved in the clockwise direction. When the base frarnel has
revolved an angle, rnake the longitudinal rnovable boatboots be hanging and
drive the boots bottom 551 and 552, the boots body 561 and 562 to be
paralled differently. If rNake the longitudinal movable boatboots 10 be
hanging in the air, and the transversal movable boatboots 11 support the
weight again, repeat the above operation, the base frame 1 can revolve an
angle again. The baYe frame revolve to 360 degrees. The rnaximum angle of
once revoIering is up to 20 degrees.
