EP1354842B1 - Grue télescopique - Google Patents

Grue télescopique Download PDF

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Publication number
EP1354842B1
EP1354842B1 EP03014531A EP03014531A EP1354842B1 EP 1354842 B1 EP1354842 B1 EP 1354842B1 EP 03014531 A EP03014531 A EP 03014531A EP 03014531 A EP03014531 A EP 03014531A EP 1354842 B1 EP1354842 B1 EP 1354842B1
Authority
EP
European Patent Office
Prior art keywords
boom
guying
telescopic
brace
tensioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03014531A
Other languages
German (de)
English (en)
Other versions
EP1354842A2 (fr
EP1354842A3 (fr
Inventor
Michael Dipl.-Ing. Irsch
Walter Dipl.-Ing. Stowasser
Frank Dipl.-Ing. Conrad
Oliver Dr.-Ing. Fries
Jens Dipl.-Ing. Fery
Roland Dipl.-Ing. Kuhn
Walter Zimmer
Markus Marx
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tadano Demag GmbH
Original Assignee
Terex Demag GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Terex Demag GmbH and Co KG filed Critical Terex Demag GmbH and Co KG
Priority to DE20023369U priority Critical patent/DE20023369U1/de
Priority claimed from EP00250210A external-priority patent/EP1065166B2/fr
Publication of EP1354842A2 publication Critical patent/EP1354842A2/fr
Publication of EP1354842A3 publication Critical patent/EP1354842A3/fr
Application granted granted Critical
Publication of EP1354842B1 publication Critical patent/EP1354842B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/823—Bracing equipment acting in vertical direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/825—Bracing equipment acting in horizontal direction

Definitions

  • the invention relates to a telescopic crane with an undercarriage, an upper carriage rotatably arranged thereon, a counterweight and a jib.
  • the boom includes a main boom with a basic box and at least one telescopic section that can be pushed in and out.
  • the invention also relates to a method for bracing a boom of a telescopic crane.
  • a boom of a telescopic crane of the aforementioned type can also include an auxiliary boom in addition to the telescopic main boom, which is to be rigidly or luffably attached to the main boom.
  • a telescopic crane with such a "superlift” is known for example from DE 31 13 763 A1.
  • the luffing plane is the plane in which the boom moves when it is pivoted about its horizontal pivot axis.
  • the luffing plane is therefore perpendicular to the swivel or luffing axis of the boom.
  • the free end of this known guy bracket is connected to the end of one of the telescopic sections and the foot of the main boom by means of ropes or rope strands.
  • the guy stand consists of struts which are spaced apart on both sides of the basic box and extend upwards and are rigidly connected to one another. It is also stated that the guy stand can be folded onto the basic box in a transport position. The connection between the guy stand and the boom foot is also proposed to be unchangeable in length.
  • a winch arrangement is provided in order to change the length of the cable provided between the guy stand and the telescopic boom.
  • a control device for the winches can be provided for applying a predetermined cable force to the guy stand and the guy devices connected to it.
  • a realized telescopic crane with guy stand for carrying out a superlift operation is also known, for example, from the company brochure: Mannesmann Demag printechnik, Demag AC 1600, 04/96, pages 5, 17 and 27 or also from DE 38 40 408 C2.
  • a guy stand is to be placed on the base box, which has an almost unchangeable tensioning with the foot area of the main boom on the one hand and with another tensioning , which is usually changed in length, with the head or collar one of the inner telescopic shots connected on the other hand.
  • This stiffening arrangement can be used for the basic device alone, but also in connection with the arrangement of a rigid or luffing jib formed from lattice mast parts.
  • a mobile crane with telescopic boom which comprises a guy stand
  • the angle of the guy stand with respect to the vehicle which determines the angle of the boom via the guy ropes, can be changed by means of a piston-cylinder arrangement in order to raise or lower the boom.
  • This piston-cylinder arrangement is pivotally inserted between a turntable and the head of the guy stand. This configuration is intended to ensure that the guy ropes can be kept taut without the use of a winch when the boom base point is pivoted with a constant length of the boom.
  • a handlebar and the guy stand can be pivoted simultaneously and independently of one another.
  • DE 93 11 778 U1 also shows a mobile crane with a telescopic boom and a guy support articulated on the back of the foot area of the outer telescopic tube of the telescopic boom.
  • This guy support in turn takes on the function of a guy stand mentioned above.
  • the mobile crane can easily be brought into the condition of the crane operation and into its transport condition.
  • the telescopic boom consists of two parts which can be bolted to one another, each of which has an outer tube from which at least one telescopic section can be telescoped.
  • the mobile crane known from DE 196 06 109 A1 also includes a guy stand.
  • the guy stand is braced by a rope or by a linkage of a predetermined length with respect to the superstructure, the foot point or the articulation axis of an articulation shot or the lower region of the articulation shot.
  • a winch is in the area of the top of the Guy frames arranged. The winch is used to pretension the guy rope according to the angle of the articulation section and the extended state of the telescopic sections with constant force when the crane is not loaded.
  • a mobile crane with telescopic boom and anchoring bracket pivotally attached to it in the luffing plane is also known from DE 38 40 408 A1.
  • the guy stand is set up and held by a hydraulic piston-cylinder unit.
  • DE 198 02 187 A1 also shows a telescopic crane with a superlift.
  • a rigidly attached auxiliary boom is attached to the telescopic main boom.
  • the front free end of an anchoring of the superlift is attached to the auxiliary boom. This changes the force and torque relationships in the main boom extension and superlift system in such a way that the main boom is relieved.
  • the telescopic boom can be braced in the luffing level.
  • US 5,803,279 shows a telescopic boom with an automatically adjustable guy stand.
  • the guy stand automatically rises. In the erected position, deflection of the boom in the luffing plane is reduced in the manner described above.
  • the telescopic boom shown here comprises a rope which engages at the lower end of the boom and is guided in the manner of a guy stand via a device which is assigned to the main body and is adjustable in its angular position.
  • the aim of the return rope used as guy rope, which is used to pull in the various telescopic sections of such a telescopic boom, is to have a stabilizing effect on the boom exercise and, in particular, to prevent an inadmissible deflection of the telescopic boom.
  • the linkage which takes over the function of a guy stand can be pivoted about a pivot point on the telescopic boom or its basic box.
  • a piston-cylinder device is available for installation.
  • this linkage in the rocking plane can be changed in its angular position in relation to the telescopic boom.
  • this configuration is intended to reduce deflection of the boom in the luffing plane.
  • the change in the angular position of the boom should obviously enable the retracting rope to be pulled as close as possible to the main boom when retracting the telescopic sections so as to keep friction losses low. Only in the case that the return rope is used as a guy rope, a steeper position of the linkage with the return rope then guided on the free head end of the linkage is sensible.
  • DE 29 17 829 A1 shows a mobile crane with telescopic boom, which is pivotably articulated on a rotatable superstructure.
  • the lifting capacity of the crane is to be increased by providing a receiving and lifting device for an additional counterweight arranged on the superstructure of the mobile crane.
  • the receiving and lifting device can have a rearward protruding support, which is expediently directed obliquely backwards and upwards and can be lowered for receiving the additional counterweight.
  • a similar mobile crane with telescopic boom is described in DE 31 39 853 A1.
  • a counterweight is provided, which by means of a superstructure on the vehicle attached mast, which is placed to the rear and its inclination can be changed, can be brought to a suitable radius.
  • the unloading of the counterweight can be controlled depending on the change in the center of gravity of the device due to the pivoting of the boom.
  • DE 38 38 975 C2 also shows a telescopic crane with a swing-out mast for a counterweight attached to a hanging device.
  • the mast can be erected by a mast cylinder supported on the superstructure.
  • the mast itself has a telescopic extension, at the tip of which there is a pivot point for a variable-length suspension device and a variable-length guy device for the variable-length boom.
  • This crane boom consists of a single torsionally rigid support body with a preferably circular cross section.
  • the supporting body is over and / or under tension.
  • all-round overvoltage is provided, which is done with spars.
  • one or more star girders are provided on the crane boom, and the spars are attached to their radially outer ends. This stem support and the spars form a spatially fixed bracing on the crane boom.
  • DE 31 05 771 A1 discloses a tower crane, the tower of which is attached to a rotating platform connected to the undercarriage via a rotary connection. At the upper end of the tower is an outrigger braced by guy ropes and supports counterweight attached to the platform.
  • the tower and the boom consist of at least two tubes connected to one another in the region of their ends with axially approximately aligned center lines. On the top of the boom, at least in the area of the tower, two supports are arranged in a V-shape and in mirror image to their vertical plane of symmetry.
  • At least two guy ropes fastened with their front ends in the outer area of the boom run via attachment points on the outer ends of the supports to the outer ends of a back support attached to the upper end of the tower and fastened to the boom by a guy rope.
  • the tubes forming the tower can be telescoped into one another and braced against one another in their extended, still partially encasing position.
  • a trolley can be moved back and forth on the jib, as is usual with top-slewing cranes.
  • Such a tower crane should be able to be manufactured from lattice mast elements with less effort than known tower cranes.
  • a boom with horizontal rope bracing is known from DE 37 34 919 A1.
  • the swiveling boom shown here has a plurality of traverses that run parallel to the swivel axis and are braced via ropes.
  • the boom design shown is ultimately nothing more than a braced beam with fixed crossbeams.
  • this type of boom is provided for support frames that can be moved on caterpillars, for example.
  • a boom of a crane for container operation is known from DE 1 531 155.
  • a luffing jib of a double link luffing crane is disclosed, in which there are two beak-like expandable arms which form the outer part of the jib and which carry two top rollers or top roller groups.
  • the arms can be locked in such a spread position in which the distance that the centers of the two rolls or groups of rolls have from one another is approximately equal to the distance between the centers of the lifting rope slings carrying the container crossbar.
  • the two arms are in the coupled together stiffened against each other and are positively and shear-proof connected.
  • the spreadable arms themselves are, as already explained, braced against bending via a guy stand.
  • the technical problem on which the invention is based is to provide a telescopic crane which can take up an increased load capacity, especially in the steep positions of the jib.
  • a technical problem on which the invention is based is to provide a method for bracing a telescopic boom of a telescopic crane, so that increased loads, in particular in steep positions of the boom, can be absorbed with such a boom.
  • a telescopic crane which comprises an undercarriage, an upper carriage rotatably arranged thereon, a counterweight and a boom which has a main boom with a basic box and at least one telescopic section which can be pushed in and out.
  • a telescopic boom is not only stiffened in the luffing plane, as is the case with the long-known guy frame or superlift, but also in deformation planes lying outside the luffing plane, which means that particularly in steep positions of the telescopic boom compared to the previous Superlift, the payloads are significantly increased the otherwise unchanged telescopic boom can be accommodated.
  • An exemplary embodiment of the present invention provides that the foot ends of the guy supports are arranged on a support lying transversely to the longitudinal axis of the boom and projecting beyond it.
  • Another exemplary embodiment of the present invention provides that the free head end of each guy support via a first tensioning means optionally with the superstructure, the undercarriage, the foot area of the boom, a fixed or separately guided counterweight or the counterweight in the direction of the foot end of the boom and over one further clamping means is connected to a selected point of the main boom or part of a boom extension in the direction of the head end of the boom.
  • each guy support is connected to the head or collar of one of the inner telescopic sections via a tensioning means.
  • each guy support can also be connected to a part of a rigid or luffing auxiliary boom formed from lattice mast parts via a tensioning means.
  • An exemplary embodiment of the present invention provides that the length of each guy support can be changed.
  • the length of each guy support can, for example, be changed in steps or continuously.
  • the tensioning means are designed as a rope and / or as a rod.
  • An exemplary embodiment of the present invention provides that the clamping means cooperates with a clamping device.
  • a tensioning device can be, for example, a separately controllable tensioning device for the tensioning means of each guy support.
  • such a tensioning device can be arranged on the guy support, on the superstructure, on the undercarriage, on the main boom, on the counterweight or on a boom extension.
  • the tensioning device is designed as a winch or piston-cylinder unit.
  • a change in inclination of a guy support can be used to tension the associated tensioning means.
  • the guy supports are arranged on the top of the boom.
  • a pair of guy supports are arranged on the main boom in the area of the basic box.
  • the pair of guy supports are arranged in the front area between the linkage of a luffing cylinder and a front bearing on the basic box.
  • An exemplary embodiment of the present invention provides that the foot ends of the guy supports are connected to the boom in the transition region between the upper side and the respective side wall of the base box.
  • the angle enclosed by the two guy supports of a pair of guy supports can be changed.
  • the angle enclosed between the two guy supports can be adjusted in steps or continuously by pivoting the guy supports.
  • the guy supports are each connected to a piston-cylinder unit.
  • each guy support has two spars lying approximately in parallel.
  • a winch for tensioning the tensioning means can then be arranged between the bars of the respective guy supports.
  • auxiliary boom attached to the head of the innermost telescopic section, which is formed from lattice mast parts.
  • a luffing auxiliary boom formed from lattice mast parts with at least one luffing support.
  • a further exemplary embodiment of the present invention provides that a measuring means is provided for detecting the lateral deformation of the boom, which is linked in terms of control to a tensioning device influencing the degree of tension of the lateral guying.
  • the lateral deformation can be detected directly or indirectly via crane sizes, such as rope tension, rope length, rope elongation and the forces acting on the jib, in the form of the wind from the side, the solar radiation and the temperatures prevailing on the main jib.
  • a method is proposed by means of which a telescopic boom with a basic box and at least one telescopic section that can be swung in and out can be braced such that lateral forces can also be absorbed.
  • at least one of the guying supports of a pair of guying supports is arranged on the jib cantilevered to the luffing plane.
  • Each guy support of the pair of guy supports is also connected to a tensioning means that extends essentially in the longitudinal direction of the boom.
  • An exemplary embodiment of the method according to the invention provides that the two guy supports are pivoted above the boom in order to set the angle enclosed between the guy supports.
  • the free head end of the guy support is optionally connected to the superstructure, the undercarriage, the foot region of the boom, a fixed or separately guided counterweight or the floor in the direction of the foot end of the boom via a first tensioning means and another Clamping means connected to a selected point on the main boom or part of a boom extension in the direction of the head end of the boom.
  • each guy support can be connected to the head or collar of one of the inner telescopic sections via a tensioning means.
  • An alternative embodiment of the present invention provides that the free head end of each guy support is connected via a tensioning means to a part of a rigid or luffing jib made of lattice boom parts.
  • the length of each guy support is changed stepwise or continuously in order to tension the tensioning means.
  • An alternative embodiment provides that a change in the inclination of a guy support is used to tension the associated tensioning means.
  • Another exemplary embodiment of the method according to the invention provides that the tensioning means is tensioned with a tensioning device.
  • each guy support can be tensioned by means of a separately controllable tensioning device.
  • the guy supports are set up by means of piston-cylinder units.
  • each guy support is pivoted laterally by means of a piston-cylinder loading time.
  • a method according to the invention can be designed such that the lateral deformation of the cantilever is determined with the aid of a measuring device and the tensioning device influencing the degree of tension of the lateral guying is controlled accordingly.
  • an embodiment of the method according to the invention is designed such that the lateral deformation is detected directly or indirectly via crane sizes, as mentioned above.
  • At least two guy supports inclined with respect to the luffing plane are arranged on the boom, each of which is connected to a tensioning means running essentially in the longitudinal direction of the boom, the inclination of the guy supports being selected such that the lateral load acting on the boom partially or completely absorbed by the guying.
  • the guy support can be inclined transversely to the longitudinal direction or in the longitudinal direction or overlapping transversely to and in the longitudinal direction of the boom.
  • two inclined guy supports are provided on the top of the respective boom element, the angle inclination of both guy supports being the same in the normal case. However, it can also vary depending on the direction of the forces acting on the boom.
  • the foot ends of both guy supports can be connected to the top of the boom at a common location, but also offset from one another.
  • the foot end of at least one guy support is connected to the boom in the transition region between the upper side or the respective side wall.
  • the proposed arrangement has the advantage that, depending on the angular position of the guy supports, the portion of the guy force that acts in the lateral direction can be changed continuously or continuously.
  • the effective clamping force is divided into a superlift operation component and a component lateral guying.
  • the two guy supports In the second extreme position, ie in the horizontal position, the two guy supports only provide reinforcement in both lateral directions.
  • the respective free head end of the guy support is connected to the undercarriage, the uppercarriage, the foot area of the boom, the fixed or separately guided counterweight or the floor in the direction of the foot end of the boom via a first clamping device and via a further clamping device to a selected point on the boom Connected towards the boom head.
  • the respective desired angular position of the guy supports can be adjusted gradually or continuously by pivoting the guy supports. This also enables an asymmetrical angle setting. This means that with an applied lateral force only on one side the respective guy support is inclined more in the direction of the side guy, while the second guy support remains in a central position.
  • the tensioning means can be designed as a rope or as a rod.
  • the clamping means or the clamping means can be arranged with and without pretension. In the case of a pretension and an adjustable degree of tension, the tensioning means cooperates with a tensioning device. This is preferably a winch or a piston-cylinder unit. But also the angle adjustment and / or the length change of the guy support can be used in the sense of a tensioning device.
  • the tensioning devices can be arranged on the guy supports, on the boom, on the superstructure or undercarriage or on the counterweight.
  • the guy supports are preferably arranged on the main boom in the area of the basic box, in particular in the front area between the articulation of the luffing cylinder and the front bearing.
  • each guy support is preferably connected to a piston-cylinder unit supported on the basic box.
  • the guy support has two spars, between which the winch can be arranged.
  • the equipment of the telescopic boom can be supplemented with the arrangement of a rigid or luffing auxiliary boom formed from lattice mast parts.
  • the proposed lateral guying can also be attached to these cantilever elements.
  • Lateral bracing can be used particularly effectively if the crane is equipped with a measuring device to record the lateral deformation of the boom. If the deformation exceeds a specified permissible value, the clamping device connected to the guying is activated and the guying is re-tensioned.
  • the degree of lateral deformation can be determined directly or indirectly via crane sizes. For example, these are rope tension, rope length and rope elongation. However, a statement can also be made about the degree of lateral deformation via the forces acting on the boom in the form of the wind arising from the side, the solar radiation and the temperatures prevailing in the boom.
  • FIGS. 1a-c the possible arrangement of a guy support inclined with respect to the luffing plane is shown as a basic sketch.
  • the guy support 2 is preferably arranged on the top 3 of a cantilever element 1 shown here symbolically.
  • This boom element 1 can be a basic box or a shot of a main boom of a telescopic crane or the lattice boom element of a rigid or luffing jib.
  • the center axis 4 drawn in the boom element 1 is ideally also the luffing plane of the boom.
  • the guy support 2 is inclined at an angle ⁇ > 0 with respect to the luffing plane.
  • the dashed representation of the guy support 2 ' is intended to clarify that the guy support 2 can also be inclined towards the other side.
  • the free end 5 of the guy support 2 is connected to a tensioning means 6, 7, preferably a rope.
  • a tensioning means 6, 7 is connected to a tensioning means 6, 7, with a fixed point arranged on the boom or a tensioning device such as a piston-cylinder unit or winch. Clamping of the clamping means 6, 7 can also be achieved without a clamping device. Firstly, in such a way that the clamping means 6, 7 are arranged at a smaller or larger angle ⁇ and then the guy support 2 is further inclined. Alternatively, it is also possible to make the guy support 2 telescopic and to achieve a degree of tension by changing the length.
  • Part b shows the possibility of inclining the guy support 2 in the other plane at an angle ⁇ > 0.
  • Part c shows the possibility of inclining the guy support 2 overlapping in both planes.
  • the possibility is shown to arrange at least one foot end 8.1 outside the cantilever element 1.
  • there is a here on top 3 right-hand extending bracket 10 is arranged, at the end of which is the foot end 8.1 of the guy support 2.1 which tilts to the right here.
  • the carrier 11 projects over on both sides, so that both foot ends 8.1, 8.2 of the two guy supports 2.1.2, 2 lie outside the cantilever element 1.
  • FIG. 4 A special case is shown in Figure 4.
  • the transverse beam 12 itself forms the two guy supports extending to the right and to the left.
  • This special form can be deduced mentally if the two inclination angles ⁇ 1 and ⁇ 2 are increased to 90 ° in FIG. 2.
  • the boom element is a basic box 13 of a main boom of a telescopic crane.
  • a piston-cylinder unit 28.1, 28.2 is provided as the set-up aid, which is arranged at one end on the side wall 25 and at the other end in the half area of the respective guy support 18.1.
  • One end of the tensioning means is attached to the head region of the guy support 18.1 by means of a rope thimble 31.1. From there it runs to the deflection point arranged in the direction of the jib head (also not shown here) and runs back over a deflection roller 30.1 arranged in the head region of the guy support 18.1 and from there to the winch 27.1.
  • a guy clip 32.1 is arranged, which represents the rear securing for the respective guy support 18.1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Claims (41)

  1. Grue télescopique comprenant :
    - un chariot inférieur,
    - un chariot supérieur agencé sur celui-ci avec faculté de rotation,
    - un contrepoids,
    - une flèche (1) comportant une flèche principale avec un caisson de base (13) et au moins un tronçon télescopique rétractable et déployable à l'intérieur de celui-ci,
    caractérisée par
    - au moins une paire de piliers de haubanage (2, 2.1, 2.2, 18.1, 18.2) comprenant deux piliers de haubanage, l'un au moins des deux piliers de haubanage étant agencé sur la flèche (1) en inclinaison par rapport au plan de basculement afin d'encaisser au moins partiellement les forces latérales agissant sur la flèche (1), et qui sont reliés à un moyen de serrage (6, 7, 29.1, 29.2, 32.1, 32.2) s'étendant essentiellement en direction longitudinale de la flèche (1).
  2. Grue télescopique selon la revendication 1, caractérisée en ce que les extrémités de pied (8.1) des piliers de haubanage (2.1, 2.2) sont agencées sur un support (10) perpendiculaire à l'axe longitudinal de la flèche (1) et en porte-à-faux au-delà de celui-ci.
  3. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce que l'extrémité de tête libre (5) de chaque pilier de haubanage (2.1, 2.2, 18.1, 18.2) est reliée par un premier moyen de serrage (7, 32.1, 32.2) au choix au chariot supérieur, au chariot inférieur, à la zone du pied de la flèche (1), à un contrepoids stationnaire ou guidé séparément ou au sol en direction de l'extrémité du pied de la flèche (1), et par un autre moyen de serrage (6, 29.1, 29.2) à un emplacement sélectionné de la flèche principale (1) ou à une partie du prolongement de la flèche en direction de l'extrémité de tête de la flèche (1).
  4. Grue télescopique selon la revendication 3, caractérisée en ce que l'extrémité de tête libre de chaque pilier de haubanage (18.1, 18.2) est reliée par un moyen de serrage (6, 29.1, 29.2) à la tête ou au col d'un des tronçons télescopiques intérieurs.
  5. Grue télescopique selon la revendication 3, caractérisée en ce que l'extrémité de tête libre de chaque pilier de haubanage (18.1, 18.2) est reliée par un moyen de serrage (6, 29.1, 29.2) à une partie d'une flèche auxiliaire rigide ou basculante, se composant de zones de mâts en treillis.
  6. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce que la longueur de chaque pilier de haubanage (2, 2.1, 2.2,18.1, 18.2) est modifiable.
  7. Grue télescopique selon la revendication 6, caractérisée en ce que la longueur de chaque pilier de haubanage (2, 2.1, 2.2, 18.1, 18.2) est modifiable par échelons.
  8. Grue télescopique selon la revendication 6, caractérisée en ce que la longueur de chaque pilier de haubanage (2, 2.1, 2.2, 18.1, 18.2) est modifiable en continu.
  9. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce que le moyen de serrage (6, 7) est un câble (29.1, 29.2) et/ou une barre (32.1, 32.2).
  10. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce que le moyen de serrage (6, 7, 29.1, 29.2, 32.1, 32.2) coopère avec un dispositif de serrage (27.1, 27.2).
  11. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce qu'il est prévu des dispositifs de serrage à commande séparée (27.1, 27.2) pour le moyen de serrage (6, 7, 29.1, 29.2, 32.1, 32.2) de chaque pilier de haubanage (2, 2.1, 2.2, 18.1, 18.2).
  12. Grue télescopique selon l'une ou l'autre des revendications 10 et 11, caractérisée en ce que ledit au moins un dispositif de serrage (27.1, 27.2) est agencé sur le pilier de haubanage (18.1, 18.2), le chariot supérieur, le chariot inférieur, la flèche principale (1), le contrepoids ou un prolongement de la flèche.
  13. Grue télescopique selon la revendication 10, 11 ou 12, caractérisée en ce que le dispositif de serrage est un treuil (27.1, 27.2) ou une unité à piston-et-cylindre.
  14. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce qu'une modification de l'inclinaison d'un pilier de haubanage (2, 2.1, 2.2, 18.1, 18.2) est utilisée pour tendre le moyen de serrage associé (6, 7, 29.1, 29.2, 32.1, 32.2).
  15. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce qu'une modification de la longueur d'un pilier de haubanage (2, 2.1, 2.2, 18.1, 18.2) est utilisée pour tendre le moyen de serrage associé (6, 7, 29.1, 29.2, 32.1, 32.2).
  16. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce que les piliers de haubanage (2) sont agencés sur la face supérieure (3) de la flèche (1).
  17. Grue télescopique selon des revendications précédentes, caractérisée en ce qu'une paire de piliers de haubanage (18.1, 18.2) sont agencés sur la flèche principale dans la zone du caisson de base (13).
  18. Grue télescopique selon la revendication 17, caractérisée en ce que la paire de piliers de haubanage (18.1, 18.2) sont agencés dans la zone avant entre l'articulation d'un cylindre de basculement et un palier avant sur le caisson de base (13).
  19. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce que les extrémités de pied (8.1, 8.2) des piliers de haubanage (2.1, 2.2, 18.1, 18.2) sont reliées à la flèche (1) dans la zone de transition entre la face supérieure (3) et la paroi latérale respective (9, 9') du caisson de base (13).
  20. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce que l'angle (2*α) formé par les deux piliers de haubanage (2.1, 2.2 ; 18.1, 18.2) d'une paire de piliers de haubanage est modifiable pour occuper diverses positions de serrage.
  21. Grue télescopique selon la revendication 20, caractérisée en ce que l'angle (2*α) formé par les deux piliers de haubanage (2.1, 2.2 ; 18.1, 18.2) d'une paire de piliers de haubanage est réglable par gradins ou en continu par un basculement des piliers de haubanage (2.1, 2.2 ; 18.1, 18.2).
  22. Grue télescopique selon l'une ou l'autre des revendications 20 et 21, caractérisée en ce que, pour le basculement, les piliers de haubanage (18.1, 18.2) sont reliés à une unité à piston-et-cylindre (20.1, 20.2).
  23. Grue télescopique selon l'une des revendications précédentes, caractérisée en ce que chaque un pilier de haubanage (18.1, 18.2) comporte deux longerons (21.1, 22.1, 21.2, 22.2) approximativement parallèles.
  24. Grue télescopique selon la revendication 23, caractérisée en ce qu'un treuil (27.1, 27.2) est agencé entre les longerons (21.1, 22.1, 21.2, 22.2) des piliers de haubanage (18.1, 18.2) respectifs pour tendre le moyen de serrage (6, 7, 29.1, 29.2, 32.1, 32.2).
  25. Grue télescopique selon l'une des revendications précédentes; caractérisée en ce qu'une flèche auxiliaire rigide se composant de zones de mâts en treillis est fixée à la tête du tronçon télescopique le plus intérieur.
  26. Grue télescopique selon l'une des revendications 1 à 25, caractérisée en ce qu'une flèche auxiliaire basculante se composant de zones de mâts en treillis et comportant au moins un pilier basculant est fixée à la tête du tronçon télescopique le plus intérieur.
  27. Grue télescopique selon l'une des revendications 1 à 26, caractérisée en ce qu'un moyen de mesure est prévu pour détecter la déformation latérale de la flèche et est relié quant à la commande à un dispositif de serrage qui influe sur le degré de tension du haubanage latéral.
  28. Grue télescopique selon la revendication 27, caractérisée en ce que la déformation latérale peut être détectée directement ou indirectement par les paramètres de la grue, comme par exemple, la tension du câble, la longueur du câble, l'élongation du câble ainsi que les forces qui agissent sur la flèche, sous la forme du vent qui attaque latéralement, du rayonnement solaire, ainsi que des températures qui règnent sur la flèche principale.
  29. Procédé pour le haubanage d'une flèche (1) d'une grue télescopique qui comprend une flèche principale avec un caisson de base (13) et au moins un tronçon télescopique rétractable et déployable dans celui-ci, dans lequel :
    -- l'un au moins des piliers de haubanage (2.1, 2.2 ; 18.1, 18.2) d'une paire de piliers de haubanage est agencé en porte-à-faux sur la flèche (1) et de manière inclinée par rapport au plan de basculement pour encaisser au moins partiellement les forces agissant latéralement sur la flèche (1), et
    -- chaque pilier de haubanage (2.1, 2.2 ; 18.1, 18.2) de la paire de piliers de haubanage est relié à un moyen de serrage (6, 7, 29.1, 29.2, 32.1, 32.2) qui s'étend essentiellement en direction longitudinale de la flèche (1).
  30. Procédé selon la revendication 29,
    caractérisé en ce que les deux piliers de haubanage (2.1, 2.2 ; 18.1, 18.2) sont basculés par rapport à la flèche (1) afin de régler l'angle enfermé entre les deux piliers de haubanage (2.1,2.2; 18.1, 18.2).
  31. Procédé selon l'une ou l'autre des revendications 29 et 30,
    caractérisé en ce que l'extrémité de tête libre (5) de chaque pilier de haubanage (2.1, 2.2 ; 18.1, 18.2) est reliée, via un premier moyen de serrage (7 ; 32.1, 32.2) au choix au chariot supérieur, au chariot inférieur, à la zone du pied de la flèche (1), à un contrepoids stationnaire ou guidé séparément ou au sol en direction de l'extrémité du pied de la flèche (1), et par un autre moyen de serrage (6, 29.1, 29.2) à un emplacement sélectionné de la flèche principale (1) ou à une partie du prolongement de la flèche en direction de l'extrémité de tête de la flèche (1).
  32. Procédé selon l'une des revendications 29 à 31, caractérisé en ce que l'extrémité de tête libre de chaque pilier de haubanage (18.1, 18.2) est reliée par un moyen de serrage (6, 29.1, 29.2) à la tête ou au col d'un des tronçons télescopiques intérieurs.
  33. Procédé selon l'une des revendications 29 à 32, caractérisé en ce que l'extrémité de tête libre de chaque pilier de haubanage (18.1, 18.2) est reliée par un moyen de serrage (6, 29.1, 29.2) à une partie d'une flèche auxiliaire rigide ou basculante, se composant de zones de mâts en treillis.
  34. Procédé selon l'une des revendications 29 à 33, caractérisé en ce que la longueur de chaque pilier de haubanage (2, 2.1, 2.2, 18.1, 18.2) est modifiable par échelons ou en continu afin de tendre le moyen de serrage (6, 29.1, 29.2).
  35. Procédé selon l'une des revendications 29 à 34, caractérisé en ce qu'une modification de la longueur d'un pilier de haubanage (2, 2.1, 2.2, 18.1, 18.2) est utilisée pour tendre le moyen de serrage associé (6, 7, 29.1, 29.2, 32.1, 32.2).
  36. Procédé selon l'une des revendications précédentes, caractérisé en ce que le moyen de serrage (6, 7, 29.1, 29.2, 32.1, 32.2) est tendu par un dispositif de serrage (27.1, 27.2).
  37. Procédé selon l'une des revendications précédentes, caractérisé en ce que le moyen de serrage (6, 7, 29.1, 29.2, 32.1, 32.2) de chaque pilier de haubanage (2, 2.1, 2.2, 18.1, 18.2) est tendu par un dispositif de serrage à commande séparée (27.1, 27.2).
  38. Procédé selon l'une des revendications 29 à 37, caractérisé en ce que les piliers de haubanage (18.1 ; 18.2) sont relevés au moyen d'unités à piston-et-cylindre (28.1 ; 28.2).
  39. Procédé selon l'une des revendications 29 à 38, caractérisé en ce que chaque pilier de haubanage (18.1 ; 18.2) est basculé latéralement au moyen d'une unité à piston-et-cylindre (20.1 ; 20.2).
  40. Procédé selon l'une des revendications 29 à 39, caractérisé en ce que l'on détermine la déformation latérale de la flèche (1) à l'aide d'un moyen de mesure, et en ce que l'on commande de façon correspondante le degré de tensionnement du dispositif de serrage qui influence le haubanage latéral.
  41. Procédé selon la revendication 40, caractérisé en ce que l'on détermine la déformation latérale directement ou indirectement via des grandeurs relatives à la grue, comme par exemple la tension du câble, la longueur du câble, l'allongement du câble, ainsi que les forces attaquant la flèche, sous la forme du vent latéral, de l'éclairage solaire, ainsi que des températures régnant au niveau de la flèche principale.
EP03014531A 1999-06-28 2000-06-26 Grue télescopique Expired - Lifetime EP1354842B1 (fr)

Priority Applications (1)

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DE20023369U DE20023369U1 (de) 1999-06-28 2000-06-26 Teleskopkran

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DE19930537 1999-06-28
DE19930537 1999-06-28
DE10022658 2000-04-28
DE10022658A DE10022658B4 (de) 1999-06-28 2000-04-28 Teleskopkran
EP00250210A EP1065166B2 (fr) 1999-06-28 2000-06-26 Grue téléscopique

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DE102017101113B3 (de) 2017-01-20 2018-07-12 Terex Global Gmbh Teleskopausleger mit Stangenabspannsystem für einen Mobilkran und Abspannverfahren hierfür
WO2018134249A1 (fr) 2017-01-20 2018-07-26 Terex Global Gmbh Flèche télescopique dotée d'un système de haubanage pour une grue mobile et procédé de haubanage correspondant
US11130659B2 (en) 2017-01-20 2021-09-28 Tadano Demag Gmbh Telescoping jib comprising a rod guying system for a mobile crane and guying method therefor

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Publication number Publication date
EP1354842A2 (fr) 2003-10-22
DE10022600A1 (de) 2001-07-19
DE50003246D1 (de) 2003-09-18
DE10022658A1 (de) 2001-03-15
EP1354842A3 (fr) 2003-11-12
DE10022658B4 (de) 2007-10-04
DE10022600B4 (de) 2007-09-27
US6550624B1 (en) 2003-04-22
DE50009145D1 (de) 2005-02-03

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