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EP1484275B1 - Unité de verrouillage et d'actionnement pour un dispositif de verrouillage latéral d'une flèche - Google Patents

Unité de verrouillage et d'actionnement pour un dispositif de verrouillage latéral d'une flèche Download PDF

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Publication number
EP1484275B1
EP1484275B1 EP04019505A EP04019505A EP1484275B1 EP 1484275 B1 EP1484275 B1 EP 1484275B1 EP 04019505 A EP04019505 A EP 04019505A EP 04019505 A EP04019505 A EP 04019505A EP 1484275 B1 EP1484275 B1 EP 1484275B1
Authority
EP
European Patent Office
Prior art keywords
locking bolt
locking
cam
telescopic
cylinder
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
EP04019505A
Other languages
German (de)
English (en)
Other versions
EP1484275A3 (fr
EP1484275A2 (fr
EP1484275B8 (fr
Inventor
Frank Richter
Dieter Stührwoldt
Jens Ennen
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.)
Grove US LLC
Original Assignee
Grove US LLC
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 Grove US LLC filed Critical Grove US LLC
Publication of EP1484275A2 publication Critical patent/EP1484275A2/fr
Publication of EP1484275A3 publication Critical patent/EP1484275A3/fr
Publication of EP1484275B1 publication Critical patent/EP1484275B1/fr
Application granted granted Critical
Publication of EP1484275B8 publication Critical patent/EP1484275B8/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
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic 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
    • 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
    • B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs

Definitions

  • the invention relates to a lock for telescopic shots according to the preamble of Patent claim 1.
  • Telescopic shots of crane jibs can be locked in the extended state, among other things to relieve the telescoping system. This applies in particular if Carrier devices, such as piston / cylinder units for extending the telescopic shots be used, which extend one telescopic shot after the other or retract. In order to lock telescopic shots, usually locking bolts are used, from a telescopic shot in a recording of an adjacent telescopic section intervention.
  • a lock is known, in each case two locking bolts a locking unit on the inner telescopic section are arranged so that she with two adjoining shots in the vertical side bars of the adjacent outer telescopic section can be brought into engagement.
  • the lock points a hydraulic cylinder, which is arranged parallel to the longitudinal axis of the telescopic sections and a lever that controls the direction of movement of the actuating cylinder in the movement the locking pin converts.
  • the engagement end of the lever engages when the device controlled by position monitoring is in each case moved to the appropriate location, in the inner Umgriff of the locking cylinder, so that by pressing the hydraulic cylinder the locked position can be solved.
  • the locking bolt in a receptacle, particularly preferably in a socket, received or stored in the emergency operation for a displacement of the locking bolt from its extended position is provided in its retracted position.
  • An emergency operation for a release of the locking bolt without the release device is thus in the recording of the locking bolt integrated, whereby a large space saving is achieved.
  • the lock for telescopic shots comprises a linearly displaceable Locking bolt for connecting and disconnecting an inner telescopic section and an outer telescopic section, wherein the locking bolt by means of a rotary actuator is moved from its extended position to its retracted position and held biased in its extended position.
  • the locking bolt is preferably mounted in the inner telescopic section and protrudes in its extended position into the outer telescopic section adjacent thereto, so that the telescopic sections are not displaced relative to each other in the axial direction can. In its retracted position, the locking bolt is disengaged the outer telescopic section, wherein a displacement of the telescopic sections relative to each other is possible.
  • It can be a smaller compared to a hydraulic cylinder
  • Rotary drive can be used.
  • This rotary drive can optionally hydraulic, electric or pneumatically operated.
  • Such a rotary drive has a smaller footprint as a hydraulic cylinder, which by means of a lever system on the locking bolt acts.
  • the rotary actuator can act directly on the locking bolt. Especially preferred is the locking bolt via a connecting element with the rotary actuator at least temporarily connectable.
  • the connecting element has a cam guide, in particular a cam claw on or is formed by a curve guide, in particular a curve claw.
  • a cam guide is from the rotary actuator driven and acts on the locking bolt, according to the guide curve the curve guide is moved linearly.
  • a cam claw is provided, which includes a guide surface and slightly out of engagement with the locking pin can be brought. Particularly preferred is a curve as cam guide used.
  • the locking bolt an engaging member, for. B. in shape a pen or a roller provided.
  • a surface is formed on the cam, which approaches an axis of the rotary actuator.
  • This guide curve or guide surface can be a flat or round surface, more preferably, the guide surface runs spiral towards the axis.
  • the axis of the rotary actuator is essentially perpendicular to the displacement axis of the locking bolt.
  • the cam guide Upon rotation of the cam guide the guide the guide surface moves along the engagement member, the locking bolt approaching the axis of the rotary actuator. He is preferably on the Axis of the rotary actuator pulled.
  • the cam guide may preferably be disengaged from the locking bolt become. This is particularly advantageous if the same rotary actuator and Curved guide used for different locking bolts of different telescopic shots shall be. Particularly preferably, the cam guide can only be disengaged be brought with the locking bolt when the locking bolt in his extended position is located. This increases the reliability of a lock because The inner telescopic section is never in a "free" state, in which the inner Telescopic shot connected neither to the outer telescopic section nor to the curve guide is. Preferably, the cam guide can then with the locking bolt in or disengaged when the locking bolt in its "safe" extended position is located.
  • the cam guide can be brought into a passive position in which the Cam guide is out of engagement with the locking pin and relative to the locking bolt can be moved without engaging with the locking bolt reach.
  • the cam guide is in its passive position against rotation secured to increase safety. It does not come to an unwanted Actuation of a locking bolt.
  • a piston / cylinder unit used, with the head of the cylinder with the inner telescopic section is connectable and this relative to the outer telescopic section in the operation of the Cylinder moves.
  • a release device is provided, with the piston / cylinder unit preferably at the piston outlet side head of the cylinder, is connected and can be moved along the axis of the telescopic shots.
  • the release device comprises the rotary actuator and the connecting element and is with the inner end of the locking bolt. engageable to the locking bolt against the bias from its extended position into its retracted To move position.
  • the engaging member of the locking bolt with the guide surface securely engaged can be brought, the locking bolt is preferably rotationally linear slidably mounted.
  • An angular or oval locking bolt can be used.
  • the curve guide is preferably by an elastic force, in particular by a Spring force, held in its passive position.
  • the cornering can be in the passive Position by a securing element, in particular a locking pin to be fixed.
  • the fuse element can be used in addition to the spring action.
  • the emergency operation preferably comprises an actuating element, in particular a pin, the held in the sleeve in the axial direction of the sleeve in different axial positions can be and takes the locking pin with a change in the axial position.
  • the actuator can be clamped in different axial positions become.
  • the actuating element via a thread with the Connected socket and can thus with a rotation relative to the socket in different axial positions are positioned.
  • the actuating element with the curve guide facing side of the socket connected via a thread. Will the actuator fixed on the locking bolt and rotated about its longitudinal axis, a relative movement generated between locking bolt and socket.
  • the emergency operation is carried out so that they also as so-called Anti-rotation against twisting the locking bolt can be used.
  • the Actuator can be used as an emergency, as anti-rotation or for both become.
  • the proximity sensors are the relative position of the telescopic shots capture, integrated directly into the cylinder head.
  • the cylinder head is designed to that the proximity sensors are housed in cavities or bores of the cylinder head and electrical connections via cable guides, the front side of the cylinder head are attached, can be led to the outside. There is a small footprint for the proximity sensors, which are housed protected at the same time.
  • Figure 1 shows a three-dimensional section of an inner telescopic section 18. He is inside stored in an outer telescopic section, not shown.
  • locking bolt 14 are provided, which by both protrude inside and through the outer telescopic section.
  • the locking bolt 14 is via a guide bush 13 in the inner telescopic section 18 stored.
  • the guide bush 13 is connected to the inner telescopic section 18, preferably via a press fit, connected.
  • the locking bolt 14 may in the Guide bush 13 linear between an extended and a retracted position be moved transversely to the direction of the telescopic shots.
  • a second not illustrated locking bolt is disposed opposite the locking bolt 14.
  • outer telescopic section are preferably in den.vertikalen side bars recordings provided, in which the locking bolts are respectively engageable and thus connect the inner with the outer telescopic section when the locking bolt 14 are in their extended position. The two telescopic shots are thus locked against each other. In the following example, only a locking bolt considered.
  • the locking bolt 14 held by a compression spring 28 in its extended position.
  • the compression spring 28 is shown in FIG.
  • a release device of the locking bolt 14 are moved against the spring force in its retracted position. In this Position, the locking bolt 14 is no longer in engagement with the outer telescopic section, so that the locking of the telescopic shots is solved.
  • the release device is provided on a head 2 of a piston / cylinder unit 1, 3.
  • a piston rod 1 can be pushed into a cylinder tube 3.
  • the release device includes a rotary actuator 7 and a cam 10. To unlock the Locking the locking pin 14 by means of the cam, which of the Turning 7 is rotated, pulled into the interior of the telescopic shots. The locking pin 14 gets out of engagement with the outer telescopic section.
  • the lock for telescopic shots according to Figure 1 is in a three-dimensional view without the telescopic shots shown in Figure 2.
  • Integrated, or attached to the Head 2 of the cylinder 3 is the rotary actuator 7, an interlock unit 12, a cylinder lock 5 and proximity sensors 6.
  • the proximity sensors 6 detect the relative Position of the head 2 to the telescopic shots.
  • the cylinder lock 5 can the head 2 is firmly connected to a telescopic weft.
  • the cylinder lock 5 can to transverse to the axis of the cylinder 1, 3 in a corresponding receptacle of the respective Telescopic shot are moved into. In this way, a telescopic shot moved by means of the piston / cylinder unit 1, 3 relative to the other telescopic shots become.
  • the cylinder head 2 slides in guide rails. 4
  • the Turning 7 off is a rotary drive with an axis 9.
  • the cam 10 can be rotated.
  • the cam 10 can be fixed in a position by a locking pin 8.
  • the locking pin 8 parallel to the axis of rotation 9 of the rotary actuator 7 of the rotary actuator 7 off in a corresponding receptacle in the cam 10 is moved ( Figure 3).
  • the locking pin 8 in the rotary actuator 7 retracted and releases the cam 10 for rotation.
  • the interlock unit 12 controls and / or actuates the displacement movements of the safety pin 8 and the cylinder lock 5.
  • the cylinder head 2 is relative to using the proximity sensors 6 positioned accordingly to the locking bolt.
  • the locking pin 14 is on its end, which points into the interior of the telescopic shots, executed bifurcated, wherein the two forked ends of an engaging member 15 transverse to the direction of displacement of the locking bolt 14 are penetrated.
  • the engaging member 15 is called Driving pin 15 firmly connected to the locking pin 14.
  • the cam 10 engages with a rotation about the axis 9 in the space between the driving pin 15 and the locking pin 14 and pulls the locking pin 14 on the Axis 9 of the rotary actuator 7 to.
  • a rotation lock 16 is connected to the bushing 13 and the locking bolt 14 and ensures that the engagement member 15 is always in a suitable radial position for an engagement of the cam 10 is located.
  • the anti-rotation device is the 16th designed as a rod 16, which via a thread 29 with the guide bush 13 at the Cam 10 facing the end face of the guide bush 13 is connected.
  • a screw 16 is used, through an axial through hole 30 of the locking bolt 14 is running.
  • the Rotary actuator 7 has a preferably square axis 9, on which the cam 10 with a corresponding recess 25 (see Figure 4) for the axis 9 placed becomes.
  • the locking pin 8 can by an axial displacement in a corresponding Recess 26 (see Figure 4) for the locking pin 8, the cam 10 in a certain Fix position.
  • cable guides 17 can be seen, which are designed as holes. It is taken care of a compact design of the cylinder head 2, so that this in Telescopic shots with a small inner diameter of the telescopic shots are used can. This also ensures better protection against mechanical damage.
  • FIG 4 shows the cam 10 in its passive position (see Figure 1 and Figure 2).
  • the cam 10 includes 2 curve jaws 24 at the same time both locking bolts 14 to press. In all figures, only one locking pin 14 is shown in each case.
  • a cam claw 24 includes a radially outer surface 27 and a radially inner surface 21.
  • the radially inner surface 21 is formed in the embodiment as a spiral surface 21, wherein the center of the spiral surface 21 is located in the axis of rotation 9 of the cam 10. If the cam 10 is in its passive position, it may be along the axis of the telescopic shots be moved without coming into engagement with the locking pin 14.
  • the cam 10 is in a 0 degree position in the direction the longitudinal axis of the telescopic sections is longer than wide.
  • the cam 10 In the passive position the cam 10, the cylinder head 2 together with the release device in the to be moved Telescopic shot to be moved. In this passive position is the cam secured by the locking pin 8.
  • the release device has a suitable position achieved for releasing the locking bolt 14 when the axes of the longitudinal displacement of the locking bolt 14 and the rotation axis 9 of the rotary actuator 7 intersect.
  • the cam 10 is at 45 Turned clockwise and reached an active position at the beginning of the intervention Engagement member 15 in the cam 10 and the cam claw 24 in the driving pin 15 according to Figure 5.
  • the locking pin 14 is in its extended position. If the cam, preferably further rotated by another 90 degrees, is a End position of the cam 10 achieved according to Figure 6.
  • the driving pin slides 15 on the spiral surface 21, so that the driving pin 15 together with the Locking bolt 14 against the biasing force of the locking bolt 14 on the Rotary axis 9 of the cam 10 is pulled out.
  • the locking pin 14 is located in Figure 6 in its retracted position. Versus further rotation of the cam 10 abuts the driving pin 15, preferably in a 135 degree position of the cam 10 against an end stop 22 of the cam claw 24th
  • a passive stop 23 is provided to which the driving pin 15th abuts when the cam 10 is in its active position at the start of engagement and the locking bolt 14 is not in its retracted position.
  • This safety position is shown in FIG. Only when the two telescopic shots right to each other are positioned and the locking bolt the two telescopic shots accordingly Locked, the cam 10 and curve claw 24 can in the passive position moved and the locking pin 8 are pushed out.

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

Claims (4)

  1. Dispositif de verrouillage pour éléments télescopiques, en particulier pour la flèche d'une grue mobile,
    a) comportant un axe de verrouillage (14) qui relie un élément télescopique intérieur (18) à un élément télescopique extérieur dans une position sortie et le libère dans une position rentrée,
    b) l'axe de verrouillage (14) pouvant coulisser linéairement entre sa position sortie et sa position rentrée,
    c) l'axe de verrouillage (14) étant monté dans un logement (13), et
    d) l'axe de verrouillage (14) étant maintenu précontraint dans sa position sortie, et
    e) un actionnement de secours pour un coulissement du cylindre de verrouillage (14) de sa position sortie à sa position rentrée étant prévu,
    caractérisé en ce que
    f) l'actionnement de secours est intégré au logement (13).
  2. Dispositif de verrouillage selon la revendication précédente, caractérisé en ce que l'actionnement de secours comprend un élément d'actionnement (16), en particulier une broche (16) qui peut être maintenue dans le logement (13) dans la direction axiale du logement (13), dans différentes positions axiales, et qui entraíne l'axe de verrouillage (14) lors du changement de position axiale.
  3. Dispositif de verrouillage selon l'une des revendications 1 ou 2, caractérisé en ce que l'actionnement de secours est en même temps ou exclusivement un blocage en rotation pour l'axe de verrouillage (14).
  4. Dispositif de verrouillage selon la revendication 1, caractérisé en ce que la position relative des éléments télescopiques (17, 18) est détectée par des capteurs de proximité (6) qui sont directement intégrés à la tête de cylindre (2).
EP04019505A 2000-05-08 2001-05-04 Unité de verrouillage et d'actionnement pour un dispositif de verrouillage latéral d'une flèche Expired - Lifetime EP1484275B8 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10022373A DE10022373B4 (de) 2000-05-08 2000-05-08 Verriegelungs- und Betätigungseinheit für seitliche Auslegerverriegelung
DE10022373 2000-05-08
EP01110133A EP1153875B1 (fr) 2000-05-08 2001-05-04 Unité de verrouillage et d'actionnement pour un dispositif de verrouillage latérale d'une flèche

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP01110133A Division EP1153875B1 (fr) 2000-05-08 2001-05-04 Unité de verrouillage et d'actionnement pour un dispositif de verrouillage latérale d'une flèche

Publications (4)

Publication Number Publication Date
EP1484275A2 EP1484275A2 (fr) 2004-12-08
EP1484275A3 EP1484275A3 (fr) 2004-12-15
EP1484275B1 true EP1484275B1 (fr) 2005-10-12
EP1484275B8 EP1484275B8 (fr) 2006-01-18

Family

ID=7641191

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01110133A Expired - Lifetime EP1153875B1 (fr) 2000-05-08 2001-05-04 Unité de verrouillage et d'actionnement pour un dispositif de verrouillage latérale d'une flèche
EP04019505A Expired - Lifetime EP1484275B8 (fr) 2000-05-08 2001-05-04 Unité de verrouillage et d'actionnement pour un dispositif de verrouillage latéral d'une flèche

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01110133A Expired - Lifetime EP1153875B1 (fr) 2000-05-08 2001-05-04 Unité de verrouillage et d'actionnement pour un dispositif de verrouillage latérale d'une flèche

Country Status (6)

Country Link
US (1) US6520359B2 (fr)
EP (2) EP1153875B1 (fr)
JP (1) JP3869679B2 (fr)
CA (1) CA2346484C (fr)
DE (3) DE10022373B4 (fr)
ES (2) ES2263529T3 (fr)

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DE102009009944B4 (de) * 2009-02-20 2011-02-24 Terex-Demag Gmbh Sicherungs- und Verbolzungseinheit
CN101850935B (zh) * 2010-06-22 2013-03-06 三一汽车起重机械有限公司 一种单缸插销式伸缩臂装置和插销互锁装置
DE102013006259B4 (de) * 2013-04-11 2024-09-12 Liebherr-Werk Ehingen Gmbh Teleskopausleger und Kran
DE102013011173B4 (de) * 2013-07-04 2019-05-23 Liebherr-Werk Ehingen Gmbh Verfahren zur Montage eines Krans sowie Anlenkschuss, Teleskopausleger und Kran
EP2835336B1 (fr) 2013-08-09 2018-02-28 Manitowoc Crane Group France SAS Tête de verrouillage mécanique
JP6223071B2 (ja) * 2013-08-30 2017-11-01 株式会社タダノ クレーン装置のブーム伸縮機構
WO2015176218A1 (fr) * 2014-05-20 2015-11-26 徐州重型机械有限公司 Dispositif d'allongement de boulon monocylindrique et grue
US10647552B1 (en) * 2015-09-25 2020-05-12 Link-Belt Cranes, L.P., Lllp Fly connection system for a crane boom
EP3448795B1 (fr) * 2016-04-25 2023-07-26 Manitowoc Crane Companies, LLC Grue dotée d'un mécanisme de verrouillage rotatif
JP6665874B2 (ja) * 2018-02-16 2020-03-13 株式会社タダノ クレーン
JP7445394B2 (ja) * 2018-06-04 2024-03-07 マニタウォック クレイン カンパニーズ， エルエルシー 回転式伸展及びロックシステムを有する伸縮ブーム
KR102572380B1 (ko) * 2018-06-05 2023-09-01 더 윌-버트 컴파니 자동 록킹 신축형 마스트
JP7275994B2 (ja) * 2019-08-21 2023-05-18 株式会社タダノ 作業機
JP7226184B2 (ja) * 2019-08-21 2023-02-21 株式会社タダノ 作業機
DE102020110481B3 (de) * 2020-04-17 2021-08-12 Tadano Demag Gmbh Induktionssensoranordnung einer Sicherungs- und Verriegelungseinheit eines Teleskopauslegers eines Fahrzeugkrans
US20230356402A1 (en) * 2022-05-06 2023-11-09 Oshkosh Corporation Lift device with robotic welding attachment innovations

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Also Published As

Publication number Publication date
DE50107717D1 (de) 2005-11-17
CA2346484A1 (fr) 2001-11-08
US20010052506A1 (en) 2001-12-20
JP3869679B2 (ja) 2007-01-17
EP1484275A3 (fr) 2004-12-15
ES2263529T3 (es) 2006-12-16
EP1153875B1 (fr) 2006-06-07
JP2002003174A (ja) 2002-01-09
DE10022373B4 (de) 2005-11-24
ES2250947T3 (es) 2006-04-16
DE50110000D1 (de) 2006-07-20
CA2346484C (fr) 2006-10-24
US6520359B2 (en) 2003-02-18
EP1484275A2 (fr) 2004-12-08
EP1153875A1 (fr) 2001-11-14
DE10022373A1 (de) 2001-11-29
EP1484275B8 (fr) 2006-01-18

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