EP3184480A1 - Turmkran mit teleskopierbarem mast - Google Patents

Turmkran mit teleskopierbarem mast Download PDF

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Publication number
EP3184480A1
EP3184480A1 EP16201219.9A EP16201219A EP3184480A1 EP 3184480 A1 EP3184480 A1 EP 3184480A1 EP 16201219 A EP16201219 A EP 16201219A EP 3184480 A1 EP3184480 A1 EP 3184480A1
Authority
EP
European Patent Office
Prior art keywords
latch
mast section
tower crane
mast
face
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.)
Granted
Application number
EP16201219.9A
Other languages
English (en)
French (fr)
Other versions
EP3184480B1 (de
Inventor
Jean-Paul Verchere
Fabrice Thomas
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.)
Manitowoc Crane Group France SAS
Original Assignee
Manitowoc Crane Group France SAS
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
Application filed by Manitowoc Crane Group France SAS filed Critical Manitowoc Crane Group France SAS
Publication of EP3184480A1 publication Critical patent/EP3184480A1/de
Application granted granted Critical
Publication of EP3184480B1 publication Critical patent/EP3184480B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66C13/00—Other constructional features or details
    • B66C13/16—Applications of indicating, registering, or weighing devices
    • 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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/26—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 specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/28—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 specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels
    • B66C23/30—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 specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of telescopic elements
    • B66C23/305—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 specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of telescopic elements with locking devices
    • 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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/26—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 specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/342—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with telescopic elements
    • 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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/26—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 specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/346—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with locking devices
    • 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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/26—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 specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/348—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes the erection being operated by jacks
    • 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
    • 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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • 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
    • B66C23/88—Safety gear

Definitions

  • the present invention relates to an automatic unfolding and folding tower crane.
  • the present invention relates to a method of unfolding such a tower crane.
  • EP0855361A1 describes an automatic unfolding and folding tower crane comprising an boom and a telescopic mast.
  • the telescopic mast comprises a first mast section, a second section of sliding mast side locks which are movable between locking positions and release positions of the mast sections.
  • the locks of EP0855361A1 are pivotally mounted and the telescopic mast includes levers for moving the side locks.
  • the side locks transmit the vertical forces of the boom and the first mast section to the second mast section.
  • the side latches, right and left cooperate with cleats that are welded to the side faces, right and left, of the first mast section.
  • Each cleat has a guide ramp for guiding a respective latch to its locking position.
  • locks and cleats EP0855361A1 are relatively bulky and they require high accuracy i) in the vertical direction so that their bearing faces are aligned and ii) in a horizontal direction to control the games between the first and second mast sections.
  • each guide ramp can generate significant forces in a horizontal plane, which requires locally oversize the first mast section and the second mast section.
  • the present invention is intended in particular to solve, in whole or in part, the problems mentioned above.
  • the front latch, the rear latch, the secondary front face and the secondary rear face are configured so that the front latch does not transmit a force oriented in the longitudinal direction between the first mast section and the second section of mast.
  • front latch, the rear latch, the secondary front face and the secondary rear face can be configured so that the rear latch transmits substantially all the forces oriented along the longitudinal direction between the first mast section and the second section of the rear section. mast.
  • the vertical forces are transmitted only by the rear latch, while the front latch transmits only horizontal forces. So the distribution of the forces is isostatic in a vertical median plane of telescopic mast, for example in a plane of symmetry of the mast, which avoids oversizing the locking system and the front face of the first mast section.
  • the front and rear locks participate in the recovery of the forces generated by the moments which are applied outside this plane and which are due for example to a gust of wind on the boom or dynamic effects during an orientation movement of the tower crane. Therefore, the distance between the front and rear locks makes it possible to take up high torsional moments between the first and second mast sections without inducing relative movement between the first and second mast sections. Therefore the transfer of forces is by shearing front and rear locks, which reduces the risk of fatigue failure compared to abutments that would be welded to a thin tubular mast.
  • the longitudinal direction is substantially vertical; b) a plane perpendicular to the longitudinal direction is substantially horizontal, and c) any direction contained in a plane perpendicular to the longitudinal direction is substantially horizontal.
  • the front lock and the rear lock in release positions are mechanically connected to the first mast section.
  • mast section refers to a longitudinal mast element.
  • mast sections form the telescopic mast.
  • the first mast section extends at least partially in the second mast section.
  • the first mast section When the telescopic mast is in a compact configuration, the first mast section extends almost completely into the second mast section.
  • the first mast section When the telescopic mast is in deployed configuration, the first mast section extends substantially out of the second mast section.
  • the first mast section has a polygonal cross-section with at least eight faces
  • the second mast section has a cross-section of polygonal shape with at least eight faces.
  • the polygonal shapes of the transverse sections of the first and second mast sections are convex.
  • the first mast section has a generally tubular shape composed of flat sheets
  • the second mast section has a generally tubular shape composed of flat sheets.
  • the first mast section forms a box with full faces
  • the second mast section forms a box with solid faces.
  • the first mast section has a generally constant cross section over substantially its entire length
  • the second mast section has a generally constant cross section over substantially its entire length.
  • the first and second mast sections each have the overall shape of a prism.
  • cross section designates a section considered in a sectional plane perpendicular to the longitudinal axis of the corresponding mast section.
  • first mast section has, perpendicular to its longitudinal axis, a polygonal section.
  • second mast section has, perpendicular to its longitudinal axis, a polygonal section.
  • the secondary front support and the secondary rear support cooperate respectively with the front lock and with the rear lock so that the front lock transmits, between the first mast section and the second mast section, only efforts oriented in a plane. perpendicular to the longitudinal direction. Indeed, as the bottom of the front latch does not touch the secondary front support, the front latch can not transmit longitudinal forces to the second mast section.
  • the secondary front support comprises a front support block having a partially cylindrical groove
  • the secondary rear support comprises a rear support block having a partially cylindrical groove, which can thus cooperate with the rear lock.
  • the primary front face and the primary rear face respectively comprise a primary front support and a primary rear support, the primary front support and the primary rear support being configured to transmit forces between the first mast section and, respectively, the front lock and the rear lock.
  • the primary front support and the primary rear support may respectively comprise a front support block and a rear support block.
  • the front support block may have a partially cylindrical groove
  • the rear support block may have a partially cylindrical groove, these grooves cooperating respectively with the front and rear locks.
  • the secondary front support has a front cut that opens upwards when the tower crane is in the working position, the secondary rear support having a rear cut which opens upwards when the tower crane is in position. working position, the front notch and the rear cut being configured so that the rear latch is supported against the bottom) of the rear cut and that the front latch is distant from the bottom of the front cut, when the Front latch and the rear latch are in their locking positions.
  • the front lock can not transmit longitudinal force to the second mast section.
  • the front latch therefore only transmits horizontal forces to the second mast section when the tower crane is in the working position.
  • the bottom of the front notch is lower than the bottom of the rear cut when the front latch and the rear latch are at the same altitude and in their locking positions.
  • the rear cut has an upwardly flared shape
  • the front cut comprises i) a guiding portion having an upwardly flared shape and ii) a locking portion having a U-shaped shape adjusted to the front lock.
  • rear and front notches facilitate the centering of the first mast section relative to the second mast section, regardless of the positioning or manufacturing defects of the various components.
  • flared shapes of the front and rear notches around the longitudinal direction allow self-centering of the first mast section with respect to the second mast section, since the first mast section is subjected by the boom at a time tilting towards the before.
  • the front latch comprises a front rod
  • the rear latch comprises a rear rod
  • the front rod and rear rod having substantially equal transverse dimensions
  • front and rear rods can distribute the forces that are subject to the front and rear locks.
  • the front rod and the rear rod are cylindrical, their diameters being substantially equal.
  • the cylindrical shape of the rear rod allows the rear latch to transmit forces regardless of their direction.
  • the right and left side portions of the first mast section are symmetrical with respect to a plane of symmetry which extends in the longitudinal direction and which is parallel to the plane of extension of the arrow, the axis the forward rod and the axis of the rear rod extending in said plane of symmetry.
  • the front latch and the rear latch extend along the plane of symmetry of the first mast section.
  • the front latch is movable in a first locking direction
  • the rear latch is movable in a second locking direction, the first locking direction and the second locking direction being parallel or collinear.
  • the front latch and the rear latch can be movable in non-parallel or non-linear translation directions.
  • each of the locking directions extends exclusively in a plane orthogonal to the longitudinal direction.
  • linear jack and such rods make the actuating device reliable and economical.
  • linear jack allows simultaneous movement of the front and rear locks.
  • the actuating device may comprise two linear cylinders arranged to respectively actuate the front link and the rear link, thus to respectively move the front lock and the rear lock.
  • each of the front and rear locks is connected to its own linear jack.
  • the or each linear jack is an electric jack.
  • the or each linear cylinder can be a hydraulic cylinder.
  • each connecting rod stops the movement of the front or rear lock, which avoids overloading the actuating device.
  • the front latch has a latch shoulder
  • the front slot has a forward thrust surface configured to abut against the latch shoulder when the front latch is in the latch position.
  • the front latch and the rear latch extend mainly in the first mast section in the release position.
  • the size of the telescopic mast is reduced. Furthermore, as the actuating device is in the first mast section, which is movable, the telescopic mast can work at several locking heights without the need to multiply the locks.
  • the tower crane comprises a detection system comprising detectors configured to inform an operator and / or a central unit when the front lock and the rear lock are respectively in their locking or release positions.
  • the Figures 1 to 9 illustrate a tower crane 1 with unfolding and automatic folding.
  • the tower crane 1 comprises an arrow 2 and a telescopic mast 4.
  • the longitudinal direction Z10 is substantially vertical.
  • the telescopic mast 4 comprises a first mast section 10, a second mast section 20 and a third mast section 25.
  • the first mast section 10 and the second mast section 20 are configured so that the first mast section 10 can slide in the second mast section 20 in a longitudinal direction Z10.
  • the first 10 and second 20 mast sections each have a tubular shape which is composed of flat sheets and which has a convex octagonal cross-section.
  • the first 10 and second 20 mast sections each form a box with eight full faces.
  • the first mast section 10 has two primary lateral faces 11 and 12, a primary front face 13 and a primary rear face 14.
  • the primary front face 13 faces the arrow 2 when the tower crane 1 is in the working position.
  • the primary rear face 14 is opposed to the primary front face 13.
  • the primary lateral faces 11 and 12 comprise a left lateral face 11 and a right lateral face 12.
  • the second mast section 20 has two secondary lateral faces 21 and 22, a secondary front face 23 and a secondary rear face 24.
  • the secondary front face 23 is oriented towards the arrow 2 when the tower crane 1 is in position working.
  • the secondary rear face 24 is opposed to the secondary front face 23.
  • the secondary lateral faces 21 and 22 comprise a left lateral face 21 and a right lateral face 22.
  • the telescopic mast 4 further comprises a front latch 30 and a rear latch 40.
  • the front latch 30 and the rear latch 40 are located in the first mast section 10.
  • the front latch 30 comprises a front rod 31 and the rear latch 40 comprises a rear rod 41.
  • the front rod 31 and the rear rod 41 are here cylindrical and have substantially equal diameters.
  • the right and left side portions of the first mast portion 10 are symmetrical with respect to a plane of symmetry P10 which extends in the longitudinal direction Z10 and which is parallel to the extension plane P2 of the arrow 2.
  • the axis X31 of the front rod 31 and the axis X41 of the rear rod 41 extend in the plane of symmetry P10. So the lock before 30 and the lock rear 40 extend along the plane of symmetry P10 of the first mast section 10.
  • the front latch 30 and the rear latch 40 are movable in translation orthogonal to the longitudinal direction Z10.
  • the front latch 30 is movable in a first locking direction X30.
  • the rear latch 40 is movable in a second locking direction X40.
  • the first locking direction X30 and the second locking direction X40 are collinear here.
  • the first X30 and second locking directions extend exclusively in a plane orthogonal to the longitudinal direction Z10.
  • the front latch 30 and the rear latch 40 are mechanically connected to the first mast section 10, and they extend completely into the first mast section 10.
  • the telescopic pole 4 further comprises an actuating device 50 which is configured to move the front latch 30 and the rear latch 40 between their release positions ( figure 4 ) and their positions locking ( Figures 5-7 ).
  • the actuating device 50 is arranged in the first mast section 10.
  • the front latch 30, the rear latch 40, the secondary front face 23 and the secondary rear face 24 are configured so that the front latch 30 transmits, between the first mast section 10 and the second mast section 20, only forces F30 which are oriented in a plane perpendicular to the longitudinal direction Z10.
  • the front latch 30, the rear latch 40, the secondary front face 23 and the secondary rear face 24 are here configured so that the front latch 30 does not transmit a force oriented along the longitudinal direction Z10 between the first mast section 10 and the second mast section 20.
  • the front latch 30 thus transmits only horizontal forces F30 to the second mast section 20 when the tower crane 1 is in the working position.
  • the rear latch 40 transmits all the forces F41 oriented in the longitudinal direction Z10 (vertical) between the first mast section 10 and the second mast section 20.
  • the forces F41 are the vertical components (Z10) of the oblique forces F40 transmitted between the rear latch 40 and the second mast section 20.
  • the secondary front face 23 comprises a secondary front support 23.1.
  • the secondary rear face 24 has a secondary rear support 24.1.
  • the primary front face 13 and the rear face primary 14 respectively comprise a primary front support 13.1 and a primary rear support 14.1.
  • the front latch 30 does not touch the secondary front support 23.1, the front latch 30 does not transmit vertical forces to the second mast section 20.
  • the secondary front support 23.1 and the secondary rear support 24.1 cooperate respectively with the front latch. 30 and with the rear latch 40 so that the front latch 30 only transmits forces F30 which are oriented in a plane perpendicular to the longitudinal direction Z10 (horizontal plane).
  • the primary front support 13.1 and the primary rear support 14.1 are configured to transmit forces, in particular vertical (Z10), between the first mast section 10 and, respectively, the front latch 30 and the rear latch 40.
  • the primary front support 13.1 here comprises a front support block which has a semi-cylindrical groove.
  • the primary rear support 14.1 comprises a rear support block which has a semi-cylindrical groove. These semi-cylindrical grooves cooperate with the front and rear rods forming the front and rear locks 40.
  • the secondary front support 23.1 has a notch before 23.2 which opens up when the tower crane 1 is in the working position.
  • the secondary rear support 24.1 has a rear cut 24.2 which opens upwards when the tower crane 1 is in the working position.
  • FIG. 9 illustrates the distance D between the front lock 30 and the bottom 23.20 of the front notch 23.2.
  • the rear cut 24.2 here has a flared shape upwards.
  • the notch before 23.2 comprises: i) a guiding portion 23.21 having an upwardly flared shape, and ii) a locking portion 23.22 having a U shape adjusted to the front latch 30.
  • the lateral play of the shape in U is minimized so that the front latch bears against the edges of the locking portion 23.22.
  • the bottom of the notch before 23.2 is lower than the bottom of the rear notch 24.2 when the front and rear locks 40 are at the same altitude and in their locking positions ( Figures 5-7 ).
  • the tower crane 1 further comprises a first support beam 16 and a second support beam 17, which are arranged to respectively transmit i) efforts of the first mast section 10 to the latch before 30 and ii) efforts from the second mast section 20 to the rear latch 40.
  • the front latch 30 has a latch shoulder 30.5 and the front latch 23.3 has a forward stop surface that abuts the latch shoulder 30.5 when the front latch 30 is in the latch position ( Figures 5-7 ).
  • the lock shoulder 30.5 prevents the complete exit of the front locks 30 and rear 40 when the front seat 23.3 is opening.
  • the rear latch 30 has a latch shoulder 40.5 and the rear latch 24.4 has a rear thrust surface 28 ( figure 7 ) which abuts against the latch shoulder 40.5 when the rear latch 40 is in the locked position ( Figures 5-7 ).
  • the first mast section 10 comprises four primary support members 18.1, two being located in a front region and two in a rear region of the first mast section 10.
  • the second mast section 20 comprises four secondary support 18.2 two being located in a front region and two in a rear region of the second mast section 20.
  • the primary support members 18.1 and the secondary support members 18.2 are connected to the oblique faces of the octagonal section.
  • the primary support members 18.1 respectively rest on the front-right, front-left, rear-right and rear-left sides of the second mast section 20.
  • the secondary support members 18.2 respectively rest on the front-right, front-left, rear-right and left-back sides of the first mast section 10.
  • the primary support members 18.1 are located lower than the secondary support members 18.2.
  • the secondary support members 18.2 are closer to the arrow 102, whose load induces a moment tilting forward.
  • the primary support members 18.1 and secondary 12 fulfill a guiding function of the first and second mast sections 10 and 20 during the unfolding and folding of the telescopic mast 1. In fact, the primary support members 18.1 and secondary 18.2 guide the first mast section 10 sliding relative to the second mast section 20.
  • the primary support members 18.1 and secondary 18.2 also fulfill a force transmission function when the tower crane 100 is in operation (static telescopic mast).
  • the primary support members 18.1 and the secondary support members 18.2 are configured to transmit, between the first mast section 10 and the second mast section 20, forces induced by bending moments and by generated torsion moments. for example by a load suspended from the boom 102, by the weight of the boom 102 and by a side wind on the boom 102.
  • the telescopic mast 1 comprises lateral support members 19 which are configured to transmit lateral forces between the right and left faces of the first 10 and second mast sections.
  • the lateral support members 19 are located here at the same altitude as the secondary support members 18.2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Jib Cranes (AREA)
EP16201219.9A 2015-12-23 2016-11-29 Turmkran mit teleskopierbarem mast Active EP3184480B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1563221A FR3046150B1 (fr) 2015-12-23 2015-12-23 Grue a tour comprenant un mat telescopique

Publications (2)

Publication Number Publication Date
EP3184480A1 true EP3184480A1 (de) 2017-06-28
EP3184480B1 EP3184480B1 (de) 2018-04-25

Family

ID=55862918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16201219.9A Active EP3184480B1 (de) 2015-12-23 2016-11-29 Turmkran mit teleskopierbarem mast

Country Status (3)

Country Link
EP (1) EP3184480B1 (de)
CN (1) CN106927374B (de)
FR (1) FR3046150B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111392610A (zh) * 2020-04-02 2020-07-10 中建八局第二建设有限公司 内置式新型支承架、新型全自动爬升系统及其爬升方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1328991A (fr) * 1962-04-24 1963-06-07 Potain & Cie Ets F Perfectionnements aux dispositifs de verrouillage pour mâts télescopiques
EP0855361A1 (de) 1996-12-23 1998-07-29 Potain Teleskopmast für einen Turmkran
CN101537979A (zh) * 2009-04-14 2009-09-23 三一汽车制造有限公司 一种锁定销插拨装置及带有该锁定销插拨装置的起重机
US20150128735A1 (en) * 2013-11-11 2015-05-14 Terex Cranes Germany Gmbh Drive for a sliding connecting member of a locking system of a telescopic system of a crane jib

Patent Citations (4)

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FR1328991A (fr) * 1962-04-24 1963-06-07 Potain & Cie Ets F Perfectionnements aux dispositifs de verrouillage pour mâts télescopiques
EP0855361A1 (de) 1996-12-23 1998-07-29 Potain Teleskopmast für einen Turmkran
CN101537979A (zh) * 2009-04-14 2009-09-23 三一汽车制造有限公司 一种锁定销插拨装置及带有该锁定销插拨装置的起重机
US20150128735A1 (en) * 2013-11-11 2015-05-14 Terex Cranes Germany Gmbh Drive for a sliding connecting member of a locking system of a telescopic system of a crane jib

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FR3046150B1 (fr) 2017-12-29
EP3184480B1 (de) 2018-04-25
CN106927374A (zh) 2017-07-07
CN106927374B (zh) 2019-12-03

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