EP1830006B1 - Construction equipment and method for preparing said equipment for transportation - Google Patents

Abstract

The machine has an upper carriage (20), and a pole (40) that is swivellably arranged at the upper carriage. The pole is swivellable from a perpendicular operating position to a horizontal transportation position. A drive unit (50) is adjustably arranged along a pole guide and is positionable in an area of a pole base (42) in a deviatable resting position. The drive unit is partially detached from the pole guide and is deviated to the pole. An independent claim is also included for a method of providing a transportation condition for a construction work machine.

Description

The present invention relates in a first aspect to a construction work apparatus according to the preamble of claim 1 and in a second aspect to a method for providing a transportation condition for a construction work apparatus according to the preamble of claim 7.

A generic construction work apparatus has a superstructure, a mast pivotally mounted thereon, which is pivotable from an upright working position to a horizontal transport position, and a displaceable on the mast along a mast guide arranged drive unit for a harrow on the lying transport position of the mast in the area the mast base is positionable in a pivoted rest position.

In a generic method for providing a transport state for a construction work device with a superstructure, a mast pivotally mounted thereon, which is pivotable from an upright working position to a lying transport position, and a displaceable on the mast along a mast guide arranged drive unit for a harrow is the mast pivoted to transport the construction work device in the horizontal transport position and the drive unit is moved and pivoted in the area of the mast base of the mast.

A construction work apparatus and a method according to the prior art are, for example, in DE 101 23 403 A1 disclosed.

So far, in the prior art, the drive unit, which may for example be a rotary gear, often completely degraded because of the heavy weight and transported separately. However, this also requires a higher installation effort in the commissioning of the device. If the rotary gear is not dismantled, thereby increasing the transport height, which can bring disadvantages during transport.

The EP 0 745 528 A2 discloses a construction implement with a multi-part mast with multiple mast elements. To transport the construction work the upper mast part can be pivoted relative to the lower mast part in an approximately horizontal transport position. The rotary mechanism can be arranged for transport on the lower mast part.

Other construction equipment with multi-part masts, in which the individual mast elements are pivoted against each other for transport, are from the US 5,269,107 , of the JP 58-069927 and the JP 54-3307 known.

The object of the invention is to provide a construction work device with which, with good stability, a particularly simple and safe transport is possible. In addition, a method for providing a transport state for a construction work device is to be specified, with which the construction work device can be brought with good stability particularly quickly in a state that a particular allows easy and safe transport of the construction work device.

This object is achieved in a first aspect by the construction work device having the features of claim 1.

In a second aspect, this object is achieved by the method with the features of claim 7.

Preferred embodiments and advantageous developments of the construction work apparatus according to the invention and of the method according to the invention are the subject matter of the subclaims.

In a construction work device according to the invention it is provided that in the lying Transport position of the mast, the drive unit is at least partially released from the mast guide and positioned in the region of the mast base in a rest position pivoted to the mast.

In the method according to the invention, it is provided that the drive unit is moved into the area of the mast base of the mast and at least partially detached from the mast guide and that the drive unit and the mast are pivoted relative to each other, so that the drive unit in the lying transport position of the mast in a located opposite the mast pivoted rest position.

As a core idea of the invention may be considered to leave the drive unit for transport in the region of the lower end of the mast, but to bring opposite the mast in a pivoted rest position.

The first significant advantage of the solution according to the invention can be considered that the construction work device can be brought into the transport state particularly quickly, since dismantling and separate transport of the drive unit is eliminated. This already means a considerable gain of time and thus a cost advantage for practical operation.

Another significant technical advantage results from the whereabouts of the drive unit in the region of the lower end of the mast. Due to the length of the mast, construction work devices of the type described here have a considerable rear-end load when the mast is turned back and are therefore only movable to a limited extent. In the prior art, in such devices, the mast often has to be shortened with the aid of a flap device in order to ensure sufficient stability to reach these devices. Because of the weight of the drive unit remaining in the solution according to the invention on the mast in the region of the mast base, tilting or torques which are exerted by the rearwardly projecting mast can largely be compensated. Overall, the stability of the construction work device is thus significantly improved.

In principle, the drive unit can be any desired drive unit for a cultivator, for example a drill, a vibrator or a milling cutter. In particular, the drive unit may be a rotary gear, a rotary or a vibrating drive. Under superstructure in the context of the invention is to be understood a structure which is fixed or pivotally mounted on a chassis or driving elements.

However, the above-described advantages of the invention come in a special way in very heavy and very large drive units to fruition.

In a particularly preferred embodiment of the construction work device according to the invention, the drive unit is arranged lower in the pivoted rest position at lying transport position of the mast as in a non-pivoted position on the mast guide. The drive unit extends in the transport state of the construction work device, in particular substantially from the mast base, ie from the lower end of the mast, forward and down. In contrast, the drive unit extends in devices according to the prior art, if it remains for transport on the mast, substantially upwards. In the transport state of the construction work device can thus lying, substantially horizontal mast the remaining height be significantly reduced, which is advantageous due to the lower tilting moments for transport.

For example, the drive unit can be pivoted about 90 ° relative to the mast forward in the rest position. In the transport state of the construction work device with a horizontal mast, the drive unit is then arranged substantially in front of the mast base, ie in front of the lower end of the mast. By thus provided torque corresponding moments of long, rearwardly projecting masts can be largely compensated and thus the stability of the device can be significantly improved.

To stabilize the drive unit relative to the mast in the rest position, at least one attachment rod to be connected to the drive unit and the superstructure is preferably present. Such mounting rods or struts are easy and quick to assemble.

In addition, suitable for stabilizing the drive unit in the rest position on the drive unit, the mast and / or the superstructure bolt connections are provided. These may for example be hydraulically actuated.

In one embodiment of the construction work device according to the invention, the drive unit remains, for example on an upper guide of a carriage, with which the drive unit is guided on the mast, on the mast guide. The drive unit is thus only partially released from the mast guide and then pivoted relative to the mast. Basically, in this context, it is also possible that the drive unit is already pivoted in an upright, so substantially vertical mast with respect to the mast in the rest position. In such embodiments, the drive unit can be particularly be moved quickly from a working position on the mast guide in the rest position, since essentially only a pivoting and tilting is necessary.

In a preferred variant of the method according to the invention, however, the drive unit is completely detached from the mast guide. On the mechanical components, which are necessary for folding the drive unit, for example, an upper guide of the carriage, can then be dispensed with.

Appropriately, in the case of the drive unit, a suspension is then present in the region of the center of gravity axis on which the drive unit can be suspended before being detached from the mast guide. This can be accomplished with the help of the main rope, which is otherwise used for example for supplying a drill pipe.

The method according to the invention can be carried out in a particularly simple and reliable manner when the drive unit is parked on the ground and then pivoted relative to one another by tilting the mast into an intermediate position of the mast and the drive unit. In particular, by tilting the mast, the drive unit can already be brought substantially into the rest position relative to the mast. By parking the drive unit, which sometimes weighs several tons, on the floor, it only needs to be moved very little. The parking of the drive unit on the floor can be done before or after the complete release of the drive unit of the mast guide.

A particularly defined and safe movement of the drive unit is also achieved in a further expedient variant of the method, in which befindlichem in intermediate position Mast the drive unit is connected to the mast and for stabilizing the drive unit relative to the mast fastening means, in particular mounting rods and / or bolt connections, are attached.

It is also preferred in this context that the mounting rods are pivotally hinged to the superstructure, so that the final transport state of the construction work device can be achieved by simply moving the mast from the intermediate position to the horizontal transport position.

Further advantages and features of the invention are explained below with reference to the accompanying figures.

Fig. 1

eine schematische, teilweise geschnittene Teilansicht eines Ausführungsbeispiels einer erfindungsgemäßen Bauarbeitsvorrichtung mit auf dem Boden abgestellter Antriebseinheit;

Fig. 2

in einer teilweise geschnittenen Teilansicht die Bauarbeitsvorrichtung aus Fig. 1 mit dem Mast in einer Zwischenstellung;

Fig. 3

in einer teilweise geschnittenen Teilansicht die Bauarbeitsvorrichtung aus Fig. 1 mit dem Mast in liegender Transportstellung und Antriebseinheit in Ruhestellung;

Fig. 4

eine teilweise geschnittene Gesamtansicht der Bauarbeitsvorrichtung aus Fig. 1 im Transportzustand; und

Fig. 5

eine teilweise geschnittene Gesamtansicht der Bauarbeitsvorrichtung aus Fig. 1 im Transportzustand mit umgeklappten Mastkopf.

Hereby shows:

Fig. 1

a schematic, partially sectioned partial view of an embodiment of a construction work device according to the invention with parked on the ground drive unit;

Fig. 2

in a partially sectioned partial view of the construction work device Fig. 1 with the mast in an intermediate position;

Fig. 3

in a partially sectioned partial view of the construction work device Fig. 1 with the mast in horizontal transport position and drive unit in rest position;

Fig. 4

a partially sectioned overall view of the construction work device Fig. 1 in transport condition; and

Fig. 5

a partially sectioned overall view of the construction work device Fig. 1 in transport condition with folded mast head.

An embodiment of a construction work apparatus 10 according to the invention will be described with reference to FIGS FIGS. 1 to 5 described. For identical components, the same reference numerals are used in the figures. The method according to the invention will also be explained with reference to the figures.

As essential components, the in the FIGS. 1 to 5 illustrated construction work apparatus 10, which is a drill, a arranged on a crawler track 30 uppercar 20, a pivotally mounted thereon 40 and a displaceable on a mast guide 46 of the mast 40 arranged drive unit 50. For clarity, the mast 40 in the FIGS. 1 to 3 only partially shown.

The full extent of the mast 40 is from the FIGS. 4 and 5 seen. The drive unit 50 is in the example shown, a rotary gear 56 for a bur, which is arranged in the working state via a carriage 58 slidably mounted on the mast guide 46 of the mast 40.

In Fig. 2 For example, the construction work apparatus 10 is shown in a condition with an upright, ie substantially vertically extending mast 40. In addition, the drive unit 50 is displaced in the region of a mast base 42, ie the lower end of the mast and parked on the ground.

On the carriage 58 of the drive unit 50, a suspension 52 is provided in the region of a center of gravity axis 54, with which the drive unit 50, for example on the main cable, which is otherwise used for the supply of a drill string, can be hung. For fixing the drive unit 50 to the mast 40 in the rest position, a bolt connection 44 is present in the region of the mast foot 42. In addition, to stabilize the rest position of the drive unit 50 relative to the mast 40 as a fastening means 60, a fastening rod 62 is present, which is fastened via further bolt connections 64, 66 on the carriage 58 of the drive unit 50 and the superstructure 20. About the bolt connections 64, the mounting rods 62 are movably articulated to the uppercarriage 20, whereby a final pivoting of the mast 40 about a pivot axis 48 in the lying transport position is made possible.

In addition to the details already described show the FIGS. 4 and 5 also the mast 40 in its full extent with operating cables 72. In the example shown, the mast 40 has a pivotable mast head 70, the in Fig. 4 in an unfolded state and in Fig. 5 is shown in a folded transport state. The mast head 70 can be pivoted by means of ropes, not shown.

In the variant of the method according to the invention carried out here, first the drive unit 50, that is, the rotary gear 56 is moved together with the carriage 58 in an upright mast 40 in a lowermost position. This is a position in the area of the mast foot 42, ie a lower end of the mast 40. Then, the main cable is suspended from the suspension 52 of the carriage 58, which is expediently provided there as close as possible to the center of gravity axis 54. The release of the drive unit 50 from the mast guide 46 is then particularly simple, since there are essentially no torques and possibly resulting dangerous situations. Subsequently, a hydraufahrensituationen given are. Subsequently, a hydraulically lockable bolt connection between the carriage 58 of the rotary gear 56 and a feed cylinder, not shown, are released, since the rotary gear 56 now depends on the main cable. In this state, in which only one upper guide 59 of the carriage 58 with the mast guide 46 is engaged, the rotary gear 56 is now deposited on the ground. This process state shows Fig. 1 , Now, the upper guide 59 of the carriage 58 is removed from the mast guide 46 and the main cable detached from the suspension 52. The drive unit 50 is then completely separated from the mast 40. Each of these process steps is particularly simple and therefore safe and reliable.

Then, the mast 40 is pivoted about the pivot axis 48 to the rear in an intermediate position. As a result, the bolt receptacle 47 present on the mast foot 42 also moves upward so far that the bolt connection 44 can be locked between the carriage 58 and the mast base 42. In this case, an existing on the carriage 58 hydraulically lockable bolt is inserted and locked in the bolt receptacle 47. Then, one or more attachment rods 62 are fastened by means of bolt connections 64, 66 between uppercarriage 20 and carriage 58. For this purpose, corresponding receptacles, which are also referred to as eyes, are formed on the uppercarriage 20 and on the carriage 58. Fig. 2 shows the state of the method with mast 40 fixed to the drive unit 50 and attached mounting rods 62nd

By the fixing rods 62, the drive unit 50 is stabilized in the rest position with respect to the mast 40 and can be raised safely by tilting the mast 40. In particular, it is reliably ensured by the attachment rods 62 that the drive unit 50 does not have suspension chains of the crawler track 30, which is also referred to as an undercarriage comes into contact. The final transport state of the construction work device 10 according to the invention is now achieved by simply tilting or pivoting the mast 40 in its lying transport position. This condition is in Fig. 3 shown. The drill can now be loaded for transport.

From the FIGS. 4 and 5 It can be seen that the mast 40 in the horizontal transport position has a considerable extent to the rear and therefore considerable tilting moments on the undercarriage, so the crawler chassis 30 exerts. Due to the high weight of the drive unit 50, which may be a few tons and substantially due to the inventive positioning of the drive unit 50 in a dumped rest position in front of the mast 42 of the mast 40, these tilting moments can be largely compensated. Overall, the stability of the device is significantly improved. In the example shown, the overall height in the transport state and thus the tilting moments can be significantly reduced by the folding device for the rotary gear together with the carriage. Added to this are the advantages of easy provision of this transport state and the very simple and inexpensive transfer of the construction work device in the working state.

Overall, a construction work device is provided with the present invention, which is particularly easy and safe to transport and in which the transport state can be achieved particularly quickly and inexpensively.

Claims (12)

1. Construction work device comprising
   an upper chassis (20) and a mast (40) pivotably located thereon and which is pivotable from an upright working position into a laid down transportation position and a drive unit (50) for a ground working implement which is displaceable along a mast guide (46) on the mast (40), and which in the laid down transportation position of the mast (40) can be positioned in the vicinity of the mast base (42) in an idle position,
   characterized in that
   in the idle position the drive unit (50) is at least partly released from the mast guide (46) and is pivoted towards the mast (40).
2. Construction work device according to claim 1,
   characterized in that,
   in the pivoted idle position and with the mast (40) in the laid down transportation position, the drive unit (50) is located lower than in the unpivoted position on the mast guide (46).
3. Construction work device according to claim 1 or 2,
   characterized in that
   for stabilizing the drive unit (50) relative to the mast (40) in the idle position there is at least one fixing bar (62) to be connected to the drive unit (50) and the upper chassis (20).
4. Construction work device according to claim 3,
   characterized in that
   the fixing bars (62) are pivotably articulated to the upper chassis (20).
5. Construction work device according to one of the claims 1 to 4,
   characterized in that
   bolted unions (44, 64, 66) for stabilizing the drive unit (50) in the idle position are provided on the drive unit (50), the mast (40) and/or the upper chassis (20).
6. Construction work device according to one of the claims 1 to 5,
   characterized in that
   a suspension (52) is provided on the drive unit (50) in the vicinity of centroid axis (54).
7. Method for the preparation of a transportation state for a construction work device (10) with an upper chassis (20), a mast (40) pivotably located thereon and which can be pivoted from an upright working position into a laid down transportation position, and a drive unit (50) for a ground working implement displaceable along a mast guide (46) on the mast (40), particularly according to one of the claims 1 to 6, in which the mast (40) is pivoted into the laid down transportation position for the transportation of the construction work device (10), and the drive unit (50) is moved and pivoted into the vicinity of the base (42) of the mast (40),
   characterized in that
   the drive unit (50) is at least partly released from the mast guide (46) and that the drive unit (50) and the mast (40) are pivoted relative to one another, so that, in the laid down transportation position of the mast (40), the drive unit (50) is in an idle position pivoted with respect to the mast (40).
8. Method according to claim 7,
   characterized in that
   the drive unit (50) is completely released from the mast guide (46).
9. Method according to claim 7 or 8,
   characterized in that,
   prior to the release from the mast guide (46), the drive unit (50) is suspended on a suspension (52), which is roughly in the centroid axis (54) of the drive unit (50).
10. Method according to one of the claims 7 to 9,
    characterized in that
    the drive unit (50) is placed on the ground and that subsequently by tilting the mast (40) into an intermediate position the mast (40) and the drive unit (50) can be pivoted relative to one another.
11. Method according to claim 10,
    characterized in that
    with the mast (40) in the intermediate position, the drive unit (50) is connected to the mast (40) and fixing means (60) are fitted for stabilizing the drive unit (50) relative to the mast (40).
12. Method according to one of the claims 7 to 11,
    characterized in that
    the drive unit (50) is pivoted relative to the mast (40) by approximately 90°.

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