EP0861967A2 - Mobile working apparatus - Google Patents

Abstract

The mobile ram or drilling rig has a sub module provided by the ram or drilling tool and a sub module provided by the mobile chassis (10) and the steering mechanism (16) coupled together via a coupling device (18). The latter has a respective coupling parts (28,30) associated with the 2 sub modules and coupled together via a plug-fit coupling (40,44). The steering mechanism may have a parallelogram linkage (20,22) to which the coupling part for the second sub module is attached.

Description

The invention relates to a mobile implement according to the preamble of claim 1.

Such an implement is in DE 42 31 553 C1 described. Depending on whether you are on the leader of the implement attaches a ram head or a drilling table, the implement is used as a pile driver or drill. With such tools, the leader has a lot great height (20 to 40 m). In particular, the leader must Moving the implement over longer distances so that it does not get caught on obstacles, e.g. it is possible to drive under bridges.

With some tools, the leader is flipped such that it is horizontally above the Chassis lies and with approximately the same sections protrudes from the front and rear of the chassis. At a other variant of work tools for which the DE 42 31 553 C1 is an example, the leader is from the chassis folded forward into an assembly position, and it will then be the connections between that of the chassis worn handlebar assembly and the leader or the Neckrest arrangement released. The chassis and the Leader, along with the headrest assembly, will then transported as separate subunits, whereby the leader may still be broken down into its segments.

Loosening and making the various connections between the leader and the headrest arrangement on the one hand and the handlebar arrangement of the chassis on the other hand is time consuming.

The present invention is therefore intended to be an implement further developed according to the preamble of claim 1 be that the attachment and removal of leader and Neck support arrangement is simplified.

This object is achieved by an implement with the features specified in claim 1.

In the working device according to the Invention Chassis and the handlebar assembly formed subunit and that by the leader and the headrest assembly subunit formed in each case stable geometry, since their free ends are fixed by the coupling parts are. This facilitates alignment of the connection points and thus the cultivation by the leader and the neck support assembly formed subunit. At the Dismantling is enough support for that Leader and neck support assembly formed unit to an uncontrolled movement after loosening the connection point to avoid. In the state of the art, brokers must and headrest assembly for loosening the joints be supported separately.

Advantageous developments of the invention are in the subclaims specified.

In a working device according to claim 2, it is possible the leader around the articulation between the first coupling part and turning brokers. This hinge point allows thus an inclination of the leader for certain work and also moving the leader horizontally.

In a working device according to claim 3, you can the leader in the working position in the vertical direction as required adjust, but still has the above Advantages of simple Disassembling and assembling the implement.

The development of the invention according to claim 4 allows lifting the leader while maintaining its orientation or lower and at the same time towards the To adjust the longitudinal axis of the chassis.

In a working device according to claim 5, the required Adjusting the parallelogram linkage serving cylinder no additional space.

If you choose the connecting means between the two coupling parts according to claim 6, so you have easy to manufacture and very reliable and resilient connections.

With the development of the invention according to claim 7 achieved that the two coupling parts also in the axial direction the two connecting bolts are centered on top of each other and be positioned.

The development of the invention according to claim 8 facilitates the growing by leader and neck support arrangement formed subunit at the free end of the handlebar assembly, since the connecting means of the two coupling parts through the cooperating centering parts up to Align each other for a remaining degree of freedom. The still necessary in this degree of freedom Alignment of the connecting means of the two coupling parts you can get on top of each other simply by applying pressure medium the neck support arrangement. The people, who assemble the implement can thus Connection means of the two coupling parts without expenditure align greater physical strength.

According to claim 9, the locking holes of the second Coupling part also form the centering means.

The development of the invention according to claim 10 with regard to a remaining alignment of not at the same time Centering means further connecting means of the two coupling parts is advantageous because the neck support arrangement at an upper end of the first coupling part neighboring point attacks to a possible to provide a wide support base for the leader.

With a working device according to claim 11, one can also the handlebar arrangement in a simple manner from the chassis dismantle. It is understood that the coupling unit used for this can be similar in practice like the coupling unit, which is between the free end of the Handlebar assembly and the lower end of by leader and the neck support arrangement formed subunit is. This primarily includes a centering device, as addressed in claim 8.

With the development of the invention according to claim 12 you can also create an additional separation level between one Provide leader holder and leader. The corresponding Coupling unit can again be constructed analogously in detail be like the coupling unit that is between the free end the handlebar assembly and the mounting end of the through Leader and neck support assembly formed subunit lies. Again, it is advantageous to have a centering device to provide according to claim 8.

Figur 1:

eine seitliche Ansicht eines Rammgerätes, welches durch ausgezogene Linien in einer Arbeitsstellung und durch gestrichelte Linien in einr Montagestellung wiedergegeben ist;

Figur 2:

eine vergrößerte Ansicht einer Parallelogramm-Lenkeranordnung, welche mit dem unteren Ende der durch Mäkler und Nackenstützenanordnung gebildete Untereinheit über eine Koppeleinheit verbunden ist, gezeigt in der Arbeitsstellung;

Figur 3:

eine ähnliche Ansicht wie Figur 2, in welcher jedoch die Montagestellung dargestellt ist;

Figur 4:

eine ähnliche Ansicht wie Figur 1, in welcher jedoch zusätzliche Koppeleinheiten dargestellt sind, über welche die Lenkeranordnung mit dem Fahrgestell und ein Mäklerhalteteil mit Mäklerführungseinheiten verbunden sind.

Figur 5:

ein Bockschaltbild der Hydraulikanlage zum Bewegen des Mäklers zwischen Arbeitsstellung und Montagestellung sowie einer zugehörigen elektronischen Steuereinheit.

The invention is explained in more detail below on the basis of exemplary embodiments with reference to the drawing. In this show:

Figure 1:

a side view of a pile driver, which is shown by solid lines in a working position and by dashed lines in a mounting position;

Figure 2:

an enlarged view of a parallelogram handlebar arrangement, which is connected to the lower end of the sub-unit formed by leader and neck support arrangement via a coupling unit, shown in the working position;

Figure 3:

a view similar to Figure 2, but in which the mounting position is shown;

Figure 4:

a view similar to Figure 1, but in which additional coupling units are shown, via which the handlebar assembly is connected to the chassis and a leader holding part with leader guide units.

Figure 5:

a block diagram of the hydraulic system for moving the leader between working position and mounting position and an associated electronic control unit.

In Figure 1 is a total of 10 a chassis for a Mobile pile driver shown, which is a chain drive 12 and an uppercarriage 14 rotatably supported by the latter having.

The chassis 10 carries a total of 16 designated Handlebar arrangement a designated a total of 18 Coupling unit.

The handlebar arrangement 16 comprises two parallelogram handlebars of the same length 20, 22, whose lower ends via two bearing bolts 24, 26 articulated to the superstructure 14 are.

The coupling unit 18 comprises a first, upper coupling part 28 and a second, lower, cooperating with it Coupling part 30.

The lower coupling part 30 is supported at two points, the same Have a distance from each other like the bearing bolts 24, 26 two further bearing bolts 32, 34, so that the lower one Coupling part 30, the handlebars 20, 22 and between the Bearing bolts 24, 26 lying section of the superstructure 14 form a parallelogram linkage.

A double-acting is used to adjust the parallelogram linkage hydraulic working cylinder 36 provided, whose piston rod at the upper end portion of the handlebar 20 attacks and its cylinder articulated on the superstructure 14 is supported.

As best seen in Figure 2, the bottom has Coupling part 30 pairs of at two spaced locations Coupling straps 38, 40, which the upper coupling part 28 laterally spread. In practice there is the lower coupling part 30 from two identical coupling plates, to both Sides of the upper coupling part 28 and on both sides the parallelogram handlebars 20, 22 are arranged.

There are locking openings in the coupling lugs 38, 40 42, 44 provided with corresponding ones in the drawing locking openings not shown in the upper Coupling part 28 are aligned. Through the locking openings 42, 44 extend locking pins 46, 48, wherein the locking pin passing through the coupling part 28 48 secured by split pins 50 in the axial direction and the locking pin 46 with the coupling part 28 is welded.

As apparent from the drawing, a is provided in the lower coupling plates 38 through an angle of about 100 ^o-extending, upwardly open recess 52 whose function will be described in more detail below. The recess 52 is in any case so small that the coupling part 28 cannot be pivoted about the axis of the locking pin 48 when the locking pin 46 is inserted.

The upper coupling part 28 has one to the left in FIG. 2 extending neck 54 which carries a bearing pin 56. This engages in a guide head 58, the lower End of a leader holding part 60 is provided. To this The coupling part 28 is articulated with the lower end the leader holding part 60 connected.

At the end on the right in the drawing is the upper one Coupling part 28 articulated with the cylinder of a neck support cylinder 62 connected. Its piston rod is through a bearing pin 63 articulated with a bearing eye 64 connected, approximately at the middle of the leader holding part 60 is welded to the latter. The top of the Leader holding part 60 also carries a guide head 66. The guide heads 58 and 66 work with guide rails 68 together provided on the edges of a leader 70 are.

For height adjustment of the leader 70 on the leader holder 60 serves a working cylinder 71, which is on the guide head 58 is supported and engages the leader 70 via a clamp 73.

On the leader 70 there are further guide heads 72, 74 a diesel ram 76 slidable. The diesel ram 76 hangs on a wire rope 78, which from the top of the Mäklers 70 worn pulleys 80, 82, one at the top End of the leader holding part 60 provided deflection roller 84 and deflection rollers carried by the upper coupling part 28 86, 88 to a cable drum provided in the superstructure 14 90 is running.

Another wire rope 92 is over comparable pulleys, the perpendicular to the plane of the drawing compared to the above described pulleys are also offset Leader 70 led. This wire rope serves to lift heavy objects, e.g. Implement or a pile to be driven into the ground, like him is shown at 94.

In the working configuration shown in Figure 1 can one by retracting or extending the neck support cylinder 62 change the leader's inclination.

By retracting or extending the working cylinder 36 the distance between the leader axis and the front of the superstructure 14 change. With this change goes hand in hand with a vertical change of position of the lower leader end. This way you can see the place where the Pile 94 is rammed in, easy to fine-tune and the lower end of the leader over about at the bottom raise existing obstacles.

By retracting or extending the working cylinder 71 to adjust the height of the lower end of leader 70.

For transporting the implement described above on public roads, that of leader 70, the leader holder 60 and the neck support cylinder 62 dismantled.

This is done by simultaneously extending the working cylinder 36 and the neck support cylinder 62 of the leader 70 brought into the horizontal position.

Preferably, the leader 70 is raised so far in the broker holding part 60 that initially the handle assembly 16 can be fully ^o pivoted in a vertical orientation of the leader 90 counterclockwise before folding. Subsequently, the neck support cylinder 62 is then extended in order to fold the leader, now spaced apart from the chassis 10, into the horizontal and to place it on blocks 95 spaced apart in the longitudinal direction of the leader. Now the locking pins 48 are released. By further lowering the handlebar assembly 16, the coupling plate 38 is released from the locking pins 46.

After dismantling the wire ropes 78 and 94 and loosening the Hydraulic lines to the neck support cylinder 62 can then the chassis 10 are moved away.

On mechanical work to break the connection between through the leader holder 60, the neck support cylinder 62 and the leader 70 formed subunit and the Handlebar assembly 16 is just removing the locking pins 48 necessary.

To rebuild the above Subunit on the chassis it is placed on blocks 95 again. The chassis is then countered with the handlebar arrangement lowered drove the stored subunit, and the handlebar assembly is moved down so that the coupling plates 38th can be placed under the locking pins 46. The handlebar assembly 16 is then raised so far that the Locking pins 46 run into the recesses 52, the subunit then slipping so that the locking pins 46 exactly in the locking openings 42 come to rest. In this position it is usually the first coupling part 28 is not yet parallel to the lower one Coupling part 30 so that the locking openings 44 of the lower coupling part 30 not yet with the corresponding Locking openings in the upper coupling part 28 are aligned. The necessary rotation of the upper coupling part 28 can be made after establishing the hydraulic connection Execute neck support cylinder 62 simply by you extend or retract the neck support cylinder 62 a little. Then the locking pin 48 in the locking openings 44 and the corresponding locking openings of the upper coupling part 28 used and axially secured with split pins 50.

Mechanical reassembly by leader, leader holding part and neck support cylinder formed subunit of the implement can thus also be used perform a few steps. The end of the cultivation work wire ropes 78 and 92 must be attached again will.

For some applications, it may be that through the subunits formed above separation still too heavy or bulky for transportation are over public roads.

In this case, you can choose between the vehicle side End of the handlebar assembly 16 and the uppercarriage 14 a provide further coupling unit 96, as shown in FIG. 4. The coupling unit shown only schematically there can be seen in have a structure similar to that in practice as above detailed with reference to Figure 1 for the coupling unit 18 described. It is important that the vehicle side Ends of the links 20, 22 connects.

Further such coupling units 98, 100 can be between leader holder 60 and guide heads 58, 66 be provided, as also schematically in FIG. 4 shown.

This means that the implement shown in FIG disassemble four larger sub-units, namely the leader itself, through leader holder 60, neck support cylinder 62 and upper coupling part 28 formed unit and through the lower coupling part 30, the links 20, 22 and the upper coupling part of the coupling part 106 is formed Unit, plus the chassis 10.

For a particularly quick movement of leader 70 between the vertical working position and the horizontal In the rest position you can also move the handlebar assembly 16 and the retraction or extension of the neck cylinder 62 at the same time carry out.

The pressure medium can be applied to the Cylinder 36, 62, 71 controlled by a schematically shown Process computer 102, the output signals from Position sensors 104, 106 receives the working cylinder 36 or the neck support cylinder 62 are assigned. The process computer 96 also receives the output signal of a position transmitter 108, the position of the leader 70 on the leader holder 60 measures. Starting from these Output signals and based on the length of the handlebars and the position of the articulation points is controlled by the process computer 96 the pressurization of the working cylinder 36 and the neck support cylinder 62 so that the lower end of leader 70 neither on the surface of the earth nor on the Chassis 10 meets.

For this purpose, the working cylinders 36, 62, 71 are via 4/3 solenoid valves 110, 112, 114 with a pressure line 116 and a return line 118 connectable by the process computer 102 are pulse controlled, with the Pulse width the speed can be adjusted.

Claims (12)

Mobile working device with a chassis (10), with a leader (70) via a handlebar arrangement (16) from the chassis (10) between one essentially vertical working position and a substantially horizontal Mounting position is carried relocatable and is releasably connected to the handlebar assembly (16) with a neck support assembly (62) located at its lower Base is articulated and releasably supported and with her supports the leader (70) in an articulated manner by a coupling unit (18) between leader (70) and neck support arrangement (62) on the one hand and the handlebar arrangement (16) on the other hand, which comprises: a first Coupling part (28), which at a first point (56) a lower portion of the leader (70) is connected and at a second point (63) from the first point (56) is spaced from the bottom of the neck support assembly (62) is connected, a second coupling part (30), which is connected to the handlebar arrangement (16) and means (38 to 48) for releasably connecting the two coupling part (28, 30). Tool according to claim 1, characterized in that the first coupling part (28) articulated with the lower Section of the leader (70) is connected. Tool according to claim 1 or 2, characterized in that that the first coupling part (28) and the upper End of the neck support assembly (62) with a lower or an upper section of a leader holding part (62) are connected, in which the leader (70) in the longitudinal direction is adjustable (58, 66). Tool according to one of claims 1 to 3, characterized characterized in that the handlebar arrangement (16) has a parallelogram linkage (20, 22) which is two parallel Has the same length of handlebars (20, 22), the top two Ends at points spaced a predetermined distance (24, 26) with the second coupling part (30) articulated are and their lower ends with two predetermined by the same Distance spaced points (32, 34) of the chassis (10) are articulated. Tool according to claim 4, characterized in that a working cylinder (36) for adjusting the parallelogram linkage (20, 22) are essentially diagonal extends through the parallelogram linkage (20, 22) and at an upper end portion of one (20) of the parallelogram handlebars (20, 22) attacks. Tool according to one of claims 1 to 5, characterized characterized in that the connecting means two pairs of aligned locking openings (42, 44) in the two coupling parts (28, 30) and in this form-fitting have insertable locking pins (46, 48). Tool according to claim 6, characterized in that of the pairs of locking openings (42, 44) each in a protruding coupling strap (38, 40) one (30) of the two coupling parts (28, 30) is provided which is the other (28) of the coupling parts (28, 30) overlaps. Tool according to one of claims 1 to 7, characterized characterized in that the coupling parts (28, 30) work together Have centering means (42, 46, 52) which a relative rotation of the two coupling parts (28, 30) in parallel to the pivot axis of the handlebar arrangement (16). Tool according to claim 8 in connection with claim 6, characterized in that a set of locking openings (42) of the second coupling part (30) in the mounting position handlebar arrangement (16) is open at the top via a recess (52). Tool according to claim 9, characterized in that the open top set of locking holes (42) of the second coupling part (30) the one below Set of locking openings (42, 44). Tool according to one of claims 1 to 10, characterized characterized in that the handlebar arrangement (16) via a coupling unit (96) to the chassis (10) which is a first connected to the handlebar assembly (16) connected coupling part and a second to the chassis (10) connected coupling part and means for detachable Lock the two coupling parts against each other. Tool according to one of claims 3 to 11, characterized characterized in that the leader holder (60) over two spaced coupling units (98, 100) with Leader guide parts (58, 66) are connected, each a first one connected to the leader holder part (60) Coupling part and a second with a leader guide part (58, 66) connected coupling part and means for detachable Lock these two coupling parts against each other having.

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