EP1655450A1 - Drilling apparatus - Google Patents

Abstract

The construction work equipment has a chassis (2), a tower (10) and a swiveling unit with the swivel joint (40). The tower is placed around the chassis in the transverse direction whereby the swivel joint is arranged at the base (6) of the tower. For the active transverse swiveling of the tower a swiveling linear drive (43) is provided at the base of the tower.

Description

The invention relates to a construction work implement with a chassis, a mast element and a pivoting device with a pivot about which the mast element is mounted transversely to a longitudinal plane of the chassis pivotally mounted on the chassis.

A generic construction equipment is shown in DE 44 36 264 C1. The construction apparatus known from this document has a two-part mast with an upper and a lower mast element, which are locked in a vertical operating position of the mast in an aligned working position. For Querverschwenken the mast a tubular boom is provided at the bottom end of the lower mast element. The outer surface of this boom forms with the inner surface of a provided on the chassis of the construction equipment, sleeve-like recording a sliding fit. As a result, a slidable along the central axis of the receptacle and rotatable about this axis for Querverschwenkung storage of the mast on the chassis.

The object of the invention is to provide a generic construction equipment with very high reliability available.

The object is achieved by a construction implement with the features of claim 1. Preferred embodiments are given in the dependent claims.

The construction work apparatus according to the invention is characterized in that the rotary joint is arranged on the mast element in a region spaced from the foot of the mast element.

A basic idea of the invention can be seen in the fact that the swivel joint for transverse pivoting of the mast element is not provided directly on the mast base but opposite the mast base offset upwards on the mast. The mast is thus according to the invention under the hinge through. This makes it possible to arrange a provided on the mast guide means for a tillage tool, such as a power turret, below the hinge in the immediate vicinity of the soil to be processed, creating a particularly distortion-free and thus reliable operation of the soil working tool of the construction equipment is possible. The inventive arrangement of the rotary joint above the mast base this is simultaneously protected from mechanical effects and contamination that occur during operation of the construction equipment particularly often in the immediate vicinity of the soil surface, which further increases the reliability of the construction work equipment. In addition, the torque required for Querverschwenkung of the mast are particularly low in a construction apparatus according to the invention, especially when the guide means, such as the power rotary head, is positioned below the pivot.

The construction work device according to the invention can in principle be formed with a one-piece or a multi-part mast, wherein in a one-piece mast only a single mast element is provided. In addition, according to the invention can be provided on the mast head at least one preferably pivotable in the longitudinal plane of the chassis pivoting boom for pivoting a Seilumlenkrolle. Under the longitudinal plane of the chassis in the context of the invention can be understood in particular a perpendicular to the chassis base extending from the rear to the front of the chassis level.

According to the invention, it is advantageous that a drive device is provided for active pivoting of the mast element transversely to the longitudinal plane. It is particularly preferred that at least one Schwenklinearantrieb, in particular a hydraulic swing cylinder is provided for active Querverschwenken the mast element, which is hinged on one side in the region of the foot of the mast element on the mast element, and hinged on the other side in particular on the chassis is. According to this embodiment, by which a particularly compact construction work tool can be obtained, the Schwenklinearantrieb is thus arranged on its one side below the pivot on the mast element. The swivel cylinder is advantageously designed as a double-acting cylinder. The Schwenklinearantrieb can also be designed, for example, as a spindle drive or rack drive.

In principle, it is possible to provide the Schwenklinearantrieb with any orientation with respect to the mast element. Thus, the Schwenklinearantrieb for particularly low driving forces, for example, be arranged approximately at right angles to the mast element. But other angular arrangements are possible. However, it is particularly preferred for the pivoting-chain drive to run at least approximately parallel to the mast element. As a result, the outer dimensions of the construction work equipment can be further reduced. Under the parallel arrangement of the Schwenklinearantriebs to mast element can be understood in particular that the drive direction of the linear drive is parallel to the mast element. If the Schwenklinearantrieb is designed as a hydraulic swing cylinder, can be understood by the parallel arrangement that the longitudinal axis of the pivot cylinder is parallel to the mast element. The arrangement of the Schwenklinearantriebs with respect to the mast element may change in Querverschwenkung of the mast element. Preferably, the at least approximately parallel arrangement of the Schwenklinearantriebs with respect to the mast element at least in the transverse direction unverschwenktem, ie given in the longitudinal plane mast element.

In principle, the Schwenklinearantrieb can be arranged in any manner in the range of Mastfußes on the mast element. However, it is particularly preferred that at the foot of the mast element, a transverse to the mast element yoke is provided, on which the Schwenklinearantrieb is articulated. In this case, the mast element is therefore formed in its foot area with a broadening, on which the Schwenklinearantrieb is provided. In order to obtain sufficiently high torques for pivoting the mast element in a particularly simple structure, a longitudinal side of the yoke is advantageously aligned with the underside of the mast element. The yoke is preferably formed as a sheet, which may have a taper towards the outside. Advantageously, the yoke is arranged on a chassis side facing the longitudinal side of the mast element.

In principle, only a single pivoting linear drive can be provided for active transverse pivoting of the mast element, which can be actuated in particular on two sides. However, it is particularly preferable for at least one pivoting-chain drive to be provided on each side of the mast element. According to this embodiment, therefore, at least two Schwenklinearantriebe are provided which act against each other. However, it can also be provided more Schwenklinearantriebe. The at least one pivoting linear drive is suitably in the front view of the chassis, i. seen in the longitudinal direction of the chassis, arranged next to the mast element. Advantageously, the at least one Schwenklinearantrieb between a chassis facing the longitudinal side of the mast element and the chassis is provided.

A particularly simple construction equipment is inventively given by the fact that the rotary joint has two coaxial lateral surfaces, in particular cylinder jacket surfaces. It is preferred that an inner of the two lateral surfaces on the chassis and an outer of the two lateral surfaces is arranged on the mast element. Alternatively, the outer can also the two lateral surfaces on the chassis and the inner be arranged on the mast element. The swivel joint may for example comprise a sleeve which comprises a bolt. The sleeve is preferably provided on the chassis and the bolt on the mast element. The sleeve can also be provided on the mast element and the bolt on the chassis. The sleeve can also be executed interrupted.

In order to further increase the reliability of the construction work tool, the rotary joint may have a locking device, with which the mast element can be locked relative to a Querverschwenkung. For this purpose, the locking device, for example, have a ring gear, in which at least one toothed element is introduced for locking. Alternatively or in addition to such a positive locking device but also a non-positive locking device can be provided.

The compactness of the construction work implement according to the invention can be further increased by the fact that the swivel joint, preferably completely, with respect to a side facing the chassis longitudinal side of the mast element set back on the mast element. According to this embodiment, the rotary joint is therefore not spaced from the mast element but engages at least partially along the longitudinal side in the mast element. In particular, the two lateral surfaces of the joint with respect to the chassis facing the longitudinal side of the mast element can be set back on the mast element. Suitably, the longitudinal side of the mast element facing the chassis is simultaneously the longitudinal side of the mast element facing away from the power rotary head and / or the drilling tool. A longitudinal side of the mast element may, in particular, be understood as a side running from the head to the foot of the mast element.

For a particularly reliable Querverschwenkung the mast element, it is advantageous that two neck linear drives, in particular, two hydraulic neck cylinder, are provided, which are articulated in each case on its one side on the chassis and on its other side above the rotary joint on the mast element. The Nackenlinearantriebe are advantageously provided in addition to the Schwenklinearantrieben, then both above and below the pivot joint on the mast element, a torque for Querverschwenken can be exercised. While the at least one Schwenklinearantrieb is advantageously articulated about an at least approximately parallel to the longitudinal axis of rotation pivotally mounted on the mast element and / or on the chassis, the Nackenlinearantriebe are preferably at least approximately perpendicular to the longitudinal plane extending pivot axes pivotally mounted on the mast element and / or on the chassis. In this case, the neckline linear drives do not extend in a suitable manner parallel to the mast element, so that active pivoting of the mast element in the longitudinal plane is also possible by means of these neckline linear drives. The two neck linear drives are suitably arranged on both sides of the mast element. Preferably, a control device is provided, which tunes the movement of the Schwenklinearantriebe and neck linear drives to each other.

A particularly compact construction tool is inventively given by the fact that the two neck linear drives are arranged at least approximately parallel to each other.

A particularly versatile construction work implement according to the invention is characterized in that between the swivel joint and the chassis another rotary joint is provided for longitudinal pivoting of the mast element. Under longitudinal pivoting can be understood pivoting in the longitudinal plane of the chassis. The axes of rotation of the two hinges advantageously at least approximately perpendicular to each other and can intersect for a particularly compact construction equipment.

A particularly simple and compact construction work implement is characterized in that the further rotary joint has a hinge axis arranged on the chassis, and that the Schwenklinearantrieb is articulated on the hinge axis. In this case, the articulation axis advantageously projects at least on the one side of the mast element laterally on the rotary joint, wherein the pivoting-chain drive can then be attached to this projecting area.

For Querverschwenken the mast element is preferably a quadrangle arrangement is provided, wherein two opposite, variable-length sides of the quadrilateral are formed by the two Schwenklinearantriebe and two other sides of fixed length, in particular by the hinge axis and the yoke. By changing the length of the two Schwenklinearantriebe the angular position of the yoke is changed with respect to the arranged on the chassis hinge axis and thus also the angular position of the yoke arranged mast element with respect to the chassis.

A particularly compact and versatile construction work implement according to the invention is that a displacement device is provided, by means of which at least one of the two hinges on the chassis is mounted longitudinally displaceable. The displacement device may in particular comprise a carriage, which is provided longitudinally displaceably guided on the chassis, and on which at least the rotary joint for Querverschwenkung or Längsverschwenkung, but preferably both hinges are arranged. The displacement device preferably has an actuator for actively displacing the at least one rotary joint.

Fig. 1

eine Seitenansicht eines erfindungsgemäßen Bauarbeitsgerätes, bei dem sich das Mastelement in einer etwa vertikalen Betriebsposition befindet;

Fig. 2

eine Frontansicht des Bauarbeitsgerätes aus Fig. 1 ohne Bohrwerkzeug, Bohrgestänge und Kraftdrehkopf, mit dem Mastelement in der Betriebsposition, wobei das Mastelement zum Schrägbohren quer zu einer Längsebene verschwenkt und in seinem oberen Bereich gebrochen dargestellt ist; und

Fig. 3

eine Seitenansicht des Bauarbeitsgerätes aus Fig. 1 in seinem Transportzustand, in dem das Mastelement in seine Transportposition verschwenkt ist.

The invention will be explained in more detail with reference to preferred embodiments, which are shown schematically in the figures. In the figures show:

Fig. 1

a side view of a construction apparatus according to the invention, in which the mast element is in an approximately vertical operating position;

Fig. 2

a front view of the construction implement of Figure 1 without drill, drill pipe and power turret, with the mast element in the operating position, wherein the mast element for oblique drilling is pivoted transversely to a longitudinal plane and shown broken in its upper portion. and

Fig. 3

a side view of the construction implement of Fig. 1 in its transport state, in which the mast element is pivoted into its transport position.

An inventive construction equipment is shown in Figs. 1 to 3. The construction implement has a chassis 2 with an undercarriage 71 configured as a tracked vehicle and a superstructure 72 rotatably mounted thereon. On the upper carriage 72 of the chassis 2, a pivotable in its longitudinal plane mast element 10 is articulated. In the illustrations of FIGS. 1 and 2, the mast element 10 is in an operating position in which the mast element 10 extends approximately vertically. In contrast, in the illustration of FIG. 3, the mast element 10 is shown in a transport position in which the mast element 10 is pivoted in the longitudinal plane of the upper carriage 72 in such a way that it extends backwards beyond the chassis 2.

For longitudinal pivoting of the mast element 10, ie for pivoting the mast element 10 in the longitudinal plane of the upper carriage 72, a swivel joint 30 is provided on the bottom side of the mast element 10. This rotary joint 30 has a hinge axis 32 running horizontally and transversely to the longitudinal plane, as well as two joint bearing plates 33 projecting along the length of the mast element 10, through which the joint axis passes. The joint bearing plates 33 are arranged above the foot 6 of the mast element 10.

The hinge axis 32 of the rotary joint 30 is arranged on a carriage 50, which is guided longitudinally displaceably on the upper carriage 72. For this purpose, two parallel and along the upper carriage 72 extending guide rails 51, 51 'are provided on the upper carriage 72, which laterally and laterally, i. on the bottom side, each of which is formed with an L-like cross-sectional profile, the front guide runner 52, 52 'of the carriage 50 are encompassed. Above the front guide runners 52, 52 ', the carriage 50 has a transverse yoke 53 which connects the two front guide runners 52, 52'. This yoke 53 rests on the upper side on the guide rails 51, 51 '. In addition to the two front guide skids 52, 52 'and spaced therefrom, the carriage 50 also has two rear guide skids 55, which are also formed with L-like cross-sectional profile and the guide rails 51, 51' engage around. The term "front" and "rear" can be understood with respect to the hinge 30, i. the front guide runners 52, 52 'are located closer to the pivot 30 than the rear guide runners 55. The rear guide runners 55 are also interconnected by a transverse yoke. By the guide rails 52, 52 ', 55 and connecting these runners yokes of the carriage 50 is rotatably and only in the longitudinal direction, parallel to the guide rails 51, 51' slidably guided on the chassis 2.

On the front side of the carriage 50, two vertically extending retaining plates 57 are provided, through which the hinge axis 32, in particular rotatable, extends therethrough. For active method of the carriage 50, a hydraulic adjusting cylinder 59 is arranged on the rear side of this, which in turn is arranged on the upper carriage 72. In Fig. 3 the piston rod of the actuating cylinder 59 is shown detached from the carriage 50.

The carriage 50 makes it possible to move the pivot 30 and thus the lower portion of the mast element 10 with respect to the upper carriage 72 of the chassis 2 horizontally. In particular, as shown in Fig. 3, the carriage 50 together the swivel joint 30 to move the construction equipment on the superstructure 72 are moved forward. This makes it possible to increase the maximum pivot angle of the mast element 10, ie the maximum angle of the mast element 10 relative to the vertical. This maximum pivoting angle can be defined, in particular, by an obstacle arranged on the rear side of the upper carriage 72, for example a winch 74, which limits the pivoting travel of the mast element 10. By moving the swivel joint 30 by means of the carriage 50 to the front, the distance of the swivel joint 30 from this obstacle is increased and thus the maximum possible swivel angle is increased.

As can be seen from Fig. 1, the carriage 50 is, however, withdrawn during operation of the construction work device and thereby displaces the center of gravity of the mast element 10 to increase the tilting safety closer to the center of gravity of the chassis 2 out.

As shown in FIG. 1, the construction work implement according to the invention can be used to operate a soil working tool 66 designed as a worm drill in the illustrated embodiment. This tilling tool 66 is arranged at the bottom on a telescopic drill pipe 60, which is longitudinally guided by means of a power rotary head 65 on the mast element 10 and rotatably driven. The drill pipe 60 is suspended in operation on its upper side on a cable 67, which is guided over two headpieces arranged on the mast element 10 guide rollers 68, 68 'and a longitudinally arranged on the mast element 10 guide roller 69 to the rear side on the upper carriage 72 arranged winch 74. While the rear deflection roller 68 'of the two deflection rollers arranged on the top side is fixedly mounted on the head of the pole element 10, the front deflection roller 68 is pivotably mounted on the pole element 10 by means of a boom 76. For active pivoting of the arm 76 with the front guide roller 68, a linear drive 77 is provided.

In the operating state shown in FIG. 1, the front deflecting roller 68 is pivoted forward into a position aligned with the drill pipe 60. On the other hand, in the transport state illustrated in FIG. 3, it is swung backwards by shortening the linear drive 77, which reduces the clear height of the construction work implement.

3, to further reduce the clear height of the construction equipment in its transport position, the drill pipe 60 are removed from the longitudinally driving top 65, are released from the cable 67 and provided for in an upper region of the mast element 10 edition 61 be launched.

2, the superstructure 72 in the middle has a recess 20 extending along the upper carriage 72, into which the mast element 10 is inserted in its transport position. On both sides of this recess 20, a hydraulic power pack 21, 21 'for generating hydraulic pressure is provided in each case. In front of the left power pack 21, laterally next to the power pack 21 ', an operator cab 24 is provided on the uppercarriage 72.

For active longitudinal pivoting of the mast element 10, in particular between its operating position and its transport position, two parallel neck cylinder 11, 11 'are provided, which are articulated on one side on the mast element 10 and on the other side on the carriage 50. Alternatively, the neck cylinder 11, 11 'can also be hinged to a fixed part of the upper carriage 72. Due to the articulation of the neck cylinder 11, 11 'on the carriage 50, however, the Längsverschwenkung the mast element 10 is independent of the position of the carriage 50 on the upper carriage 72nd

As can be seen in particular FIG. 2, the mast element 10 is also provided transversely pivotable on the superstructure 72 in addition to längsverschwenkbaren storage by means of the rotary joint 30. Querverschwenkbarkeit is understood in this context a pivotability transverse to the longitudinal plane of the upper carriage 72. For transversely pivotable mounting of the mast element 10 on the upper carriage 72, a further rotary joint 40 is provided on the joint bearing plates 33 of the rotary joint 30, the axis of rotation of which is arranged perpendicular to the axis of rotation of the rotary joint 30. This swivel joint 40 is formed by a bolt formed on the joint bearing plates 33, which engages in a sleeve element 10 arranged on the sleeve. Alternatively, the sleeve can also be formed on the joint bearing plates 33 and the bolt on the mast element 10. As well as the hinge 30 and the immediately adjacent pivot 40 is arranged spaced from the foot 6 of the mast element 10. For a particularly compact construction, the swivel joint 40 is set back in relation to the longitudinal side 46 of the mast element 10 facing the chassis into the interior of the mast element 10.

As can be seen in particular from FIG. 2, in order to pivot the mast element 10 actively about the swivel joint 40 on both sides of the mast element 10, a pivoting rocker drive designed as a hydraulic swivel cylinder 43, 43 'is provided. The pivoting cylinder 43 is shown in Fig. 2 in different pivot states. The two pivoting cylinders 43, 43 'are arranged in each case on one side on the hinge axis 32 of the rotary joint 30 and on its other side to a foot side on the mast element 10 and transverse thereto extending yoke 44, in particular articulated. The axes of rotation of these linkages thereby run at least approximately parallel to the axis of rotation of the rotary joint 40. By oppositely actuating the two swivel cylinders 43, 43 ', the yoke 44 and thus the mast element 40 connected thereto are transversely pivoted relative to the joint bearing plates 33 and thus the uppercarriage 72.

As well as the two pivoting cylinders 43, 43 'are the two neck cylinder 11, 11' arranged parallel to each other, whereby two articulation points of the neck cylinder 11, 11 'are given to the mast element 10. To support the active Querverschwenkung the mast element 10 are synchronously with the opposite operation of the two pivoting cylinders 43, 43 'and the two neck cylinder 11, 11' moved in opposite directions.

Claims (11)

Construction work tool with a chassis (2), - A mast element (10) and - a pivoting device with a pivot (40) about which the mast element (10) is mounted transversely to a longitudinal plane of the chassis (2) pivotally mounted on the chassis (2), characterized , - That the pivot (40) in a distance from the foot (6) of the mast element (10) region on the mast element (10) is arranged. Construction work tool according to claim 1,
characterized ,
in that at least one pivoting linear drive, in particular a hydraulic swivel cylinder (43, 43 '), is provided for the active transverse pivoting of the mast element (10), which is articulated on its mast element (10) in the region of the foot (6) of the mast element (10) is, and is articulated on the other side on the chassis (2). Construction work apparatus according to claim 2,
characterized ,
in that the pivoting-chain drive runs at least approximately parallel to the mast element (10). Construction work tool according to one of claims 2 or 3,
characterized ,
that a transversely extending to the mast element (10) yoke (44) is provided at the foot (6) of the mast element (10) on which the pivotal linear drive is hinged. Construction work implement according to one of claims 2 to 4,
characterized,
in that at least one pivoting-chain drive is provided on each side of the mast element (10). Construction work tool according to one of claims 1 to 5,
characterized,
in that the swivel joint (40), preferably completely, is arranged offset back on the mast element (10) in relation to a longitudinal side (46) of the mast element (10) facing the chassis (2). Construction work tool according to one of claims 1 to 6,
characterized,
in that two neck linear drives, in particular two hydraulic neck cylinders (11, 11 '), are provided which are each articulated on one side on the chassis (2) and on the other side above the rotary joint (40) on the mast element (10). Construction work apparatus according to claim 7,
that the two neck linear drives are arranged at least approximately parallel to each other. Construction work tool according to one of claims 1 to 8,
characterized,
in that between the swivel joint (40) and the chassis (2) a further swivel joint (30) is provided for the longitudinal swiveling of the mast element (10). Construction work tool according to claim 9,
characterized , - That the further rotary joint (30) has a on the chassis (2) arranged hinge axis (32), and - That the Schwenklinearantrieb is hinged to the hinge axis (32). Construction work tool according to one of claims 1 to 10,
characterized,
that a displacement device is provided by means of which at least one of the two swivel joints (30, 40) is longitudinally displaceably mounted on the chassis (2).

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