The invention is concerned with an apparatus with a king post. The
prior art king post of a pile driver, is positioned while the machine is stationary
by swivelling around the vertical axis of the assembly of attendant's cabin and
engine compartment, mounted on top of the wheeled undercarriage, which assembly
also carries the king post. Small corrections are possible with the aid of hydraulic
The object of the invention is a versatile system to position a king
post or equivalent body.
According to one aspect of the present invention a system is provided
as according to claim 1.
The field of application is not limited to an apparatus to place
a pile body, such as a foundation pile, into the ground, such as inserting a prefabricated
pile body, e.g. by ramming with a pile driver or vibrating with a pile vibrator
or pushing with a penetration device, or in situ making of a pile body into the
ground, e.g. with a screw drill injection machine, but also relates to different
apparatus for ground processing, such as a jet grout apparatus or a ground drill
apparatus, e.g. for building an underground pipeline by horizontally controlled
drilling, or such as an apparatus to place so called drains into the ground. Also
applications outside ground processing are feasible.
The positioning is preferably carried out computer controlled. Preferably
use is made of GPS (Global Positioning System) or DGPS (Differential GPS) to locate
the position of the king post.
A presently advantageous, non-limiting embodiment is shown in several
orientations in the drawing. For each orientation, each time a perspective view,
a side view, a front view and a top view are shown (respectively referred to as
"a", "b", "c" and "d"). Fig. 2-8 show different orientations of the king post,
to place an object into the ground.
- Fig. 1 shows the pile accepting orientation, in which orientation it is advantageous
to place into the king post an object, to be placed into the ground;
- Fig. 2 shows the orientation with the king post vertical and centred;
- Fig. 3 shows the orientation with the king post vertical and displaced aside;
- Fig. 4 shows the orientation of fig. 3, but now with the king post leaning
- Fig. 5 shows the orientation of fig. 3, but now with the king post leaning
- Fig. 6 shows the orientation of fig. 3, but now with the king post leaning
- Fig. 7 shows the orientation of fig. 3, but now with the king post leaning
aside 1:4 and leaning back 1:4;
- Fig. 8 shows the orientation of fig. 3, but now with the king post leaning
aside 1:4 and leaning forward 1:4;
- Fig. 9 shows the transport orientation;
- Fig. 10 shows an alternative embodiment, in the orientation similar to fig.
Illustrated is a wheeled undercarriage 1 of an apparatus to place
a pile body into the ground, particularly by pushing (penetration). The undercarriage
1 has tracks 1 or different rolling or sliding members bearing on the underground
to advance across the underground. The tracks 1 carry a frame 2 comprising two
spaced at least substantially parallel, lying, girders 3. Each track can pivot
around the vertical relative to the frame 2.
Furthermore a king post 4 is shown. The king post has guiding means
and/or holding means to hold thereon or guide therealong, respectively, the object
8 to be placed in the ground, such as a prefabricated foundation pile. The apparatus
is provided with means 9 to forwardly force the object 8. In this example the
means 9 comprise a head, moving along the king post 4, engageing the upper side
of the pile 8 and pushing it down.
The king post 4 is in the manner according to the invention carried
by the frame 2. In this embodiment this is such that the king post 4 can be translated
and pivoted in all directions relative to the frame 2.
Accordingly double acting hydraulic piston/cylinder assemblies 5
extend between the frame 2 and the king post 4, with inside the cylinder 6 a piston
(not shown), reciprocatively slidable in longitudinal direction, and connected
thereto a piston rod 7, the part of it projecting outside the cylinder 6 is extended
further from or retracted into the cylinder, respectively, by the forward or backward
movement of the piston. The cylinder 6 of the assembly 5 is mounted to the one
of the frame 2 and the king post 4, and the piston (via the piston rod 7) is mounted
to the other of the frame 2 and king post 4.
In the illustrated example there are six of these assemblies 5. The
mounting to the frame 2 respectively the king post 4 is at least substantially
symmetrical relative to the central longitudinal line of the frame 2 respectively
king post 4. The assemblies each have a double function: on the one hand they
move the king post 4, on the other hand they guide the movement. Each assembly
5 is preferably through pivoting means (e.g. a ball joint or cardan coupling) fixed
to the frame 2 respectively the king post 4, such that it can e.g. pivot in all
One or more of the assemblies 5 could be of the pneumatic type. Or
could be replaced by one or more equivalent actuators, e.g. with which two parts,
such as the part fixed to the frame 2 and the part fixed to the king post 4, can
be moved in the longitudinal direction of the actuator toward and from each other.
Instead of double acting, the actuator can be of the single acting type. In case
of double acting, the actuator actuates the movement in both directions.
In stead of an actuator, one or more of the assemblies 5 can be a
movement guide, e.g. with which a moving part, such as a part fixed to the king
post 4, is guided in longitudinal direction while moving to or from another part,
such as a part fixed to the frame 2. Said movement guide can e.g. be provided
by mutually telescoping extendable and retractable parts. According to an embodiment
e.g. all assemblies mounted to the one girder 3 are an actuator, while the others,
mounted to the opposite girder 3, are movement guides. By actuating the actuators,
the king post 4 is made to move. The manner of movement of the king post 4 is controlled
by the way of actuating the actuators and the guidance provided by the movement
guides. One or more of the movement guides can alternatively be provided such
that they can be locked in one or more of their guiding positions. If it is of
the extendable type, such as with mutually telescoping sliding parts, means can
be provided to maintain the movement guide in each desired length, e.g. by activatable
locking means (such as clamping means) that can selectively mutually fixate the
mutually displaceable parts of the movement guide temporarily to keep them mutually
Fig. 9 shows that the frame 2 width is made smaller for the purpose
of transport in that the girders 3 are brought towards each other. The embodiment
according to fig. 10 differs from that of the preceeding embodiment, in that the
frame 2 is shorter and the undercarriage 1 smaller.
Furthermore, the frame 2 can carry auxiliary equipment, such as an
hydraulic generator, to supply the piston/cylinder assemblies and the actuation
of the tracks 1, a combustion engine to actuate the generator, one or more control
members that can be controlled by an operator, a store for a stock of prefabricated
pile bodies or other bodies to place into the ground with the king post, a control
house for accomodating an operator, and such.
It is illustrated how the girders 3 run sideways outside midway their
length, such that the king post 4 can be moved sideways as far as possible.