EP0779237B1 - Kranfahrzeug mit einer Überlastsicherungseinrichtung - Google Patents
Kranfahrzeug mit einer Überlastsicherungseinrichtung Download PDFInfo
- Publication number
- EP0779237B1 EP0779237B1 EP96118130A EP96118130A EP0779237B1 EP 0779237 B1 EP0779237 B1 EP 0779237B1 EP 96118130 A EP96118130 A EP 96118130A EP 96118130 A EP96118130 A EP 96118130A EP 0779237 B1 EP0779237 B1 EP 0779237B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- jib
- angle
- outriggers
- overload protection
- protection device
- 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
Links
Images
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
- B66C23/88—Safety gear
-
- 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
- B66C23/90—Devices for indicating or limiting lifting moment
Definitions
- the invention relates to a crane vehicle with an overload protection device, with a boom articulated to its superstructure, preferably telescopic boom by one on this and the rocker arm articulated to the superstructure can be rocked with the opposite end regions of the long sides of the Extendable sliding rails arranged under the car their ends are provided with extendable support feet, and with a device measuring the angle of rotation of the boom, the Signals from a processing device of the overload protection device are supplied, in which the overload protection device generates a warning signal and / or stops crane operation, when the crane hits its stability-threatening limits or exceeds.
- the stability of a crane vehicle with a telescopic boom depends on the size of the load hanging on the telescopic boom among other things from the luffing angle, the extension length of the telescopic boom, from the deflection of the telescopic boom and in particular also from the angle of rotation of the superstructure with telescopic boom to the undercarriage and that through the support feet of the sliding spars defined stand square.
- the sliding pillars and support feet are defined as a square the safety of the crane is greatest when the boom is heading of the most extended sliding beam.
- When retracted Sliding bars with extended support feet ensure stability in Longitudinal direction of the undercarriage is greater than in the direction of its transverse axis.
- the Overload protection must therefore always include the extension status of the sliding struts take into account what is problematic in that the stability is also changes with different extension lengths of the individual sliding beams.
- a crane is known from EP 0 420 625 A2, in which a safety device various parameters of the crane such as boom position, load and position the supports detected, a work area for the crane depending on the detected Presets parameters and stops the crane if it limits the working area reached.
- the boundaries of the work area for everyone certain load determined as a function of the angle of rotation of the boom make the best use of the stability of the crane. This takes into account how strong the crane boom rotates when it reaches the working area limits can be braked without the strength of the boom endangered or the load begins to rock.
- the object of the invention is to a crane vehicle of the type specified create, in which the overload protection device in simple and reliable Way takes into account the different extension lengths of the sliding beams.
- the of the rotation angle measuring device and the monitoring device of the Sliding bars according to the angle of rotation or the extension lengths of the sliding bars generated signals are from the processing device, the one Microcomputer contains, by comparison with the others determining the stability Processed values, the overload protection device a Crane operation stopping signal generated when the crane jeopardizes its stability Approaches or crosses borders.
- the 360 ° rotation angle of the boom in several rotation angle ranges is divided and that for each of these rotation angle ranges in this area located booms which result from the extension lengths of the sliding beams Stability values are stored in a table (bit map) from which the Processing unit according to the measured extension lengths of the sliding beams reads out the current stability values of the stand rectangle.
- each sliding beam only three Support positions in which it is bolted, namely once a retracted Position in which the support leg is in the area of the long side of the undercarriage a middle position and a fully extended position.
- a retracted Position in which the support leg is in the area of the long side of the undercarriage a middle position and a fully extended position.
- the computing work of the processing device can thereby be reduced even further, that the 360 ° angle of rotation of the boom to determine the stability values of the standing square is divided into four quadrants. For each of these four quadrants are the stability values for all possible extension lengths the sliding spars stored in such a way that for the entire quadrant are valid for these applicable smallest values.
- variable angular ranges are defined, in which the boom with the hanging on it Load can be turned safely. It is for each of these Angular ranges from the smallest rocking angle, the is permissible in this angular range. Also by this definition variable angle ranges will simplify the Bill created because not for every angle of the boom the permissible safety values must be taken into account.
- the sliding spars are expedient for each extended state determined four angular ranges, the limits of which are expedient through from the axis of rotation of the boom to the the support feet load-bearing ends of the sliding beams are drawn lines become.
- the reduction in the angular ranges has the advantage that the Crane operators need not fear in larger angular ranges, Approach an angular limit at which the overload safety device responds.
- the choice of larger angular ranges leads to that the higher loads, which are permissible in certain areas, for example by swiveling the boom to smaller ones Rocker angle, can not be used.
- FIG. 1 schematically shows an undercarriage 1 of a crane vehicle can be seen from the sliding spars 2 extended to different extents are at their ends support feet 3, by Hydraulic cylinder at right angles to the sliding bars in a vertical direction Are extendable towards the floor. To extend the Support spindles can also be provided.
- the Sliding beams 2 are located in the end areas of the two Long sides of the undercarriage 1 and are perpendicular to it Extendable median longitudinal plane.
- the sliding beams can be Extend in three stages, each in their Guides must be bolted. These levels correspond to one retracted position in which the support lengths of the sliding beams are smallest, a middle position and an extended position Position in which the support length is greatest.
- the two are Sliding bars 2 of the left side in their middle position, the upper sliding beam on the right in its most extended position Position and the sliding beam at the bottom right in its retracted position Position. From this extension pattern of the sliding struts and the resulting support lengths result in a Stand square that varies over the angle of rotation of the boom is able to absorb large luffing forces.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Description
- Fig. 1
- eine Draufsicht auf den Unterwagen eines Kranfahrzeugs mit unterschiedlich weit ausgefahrenen Schiebeholmen in schematischer Darstellung,
- Fig. 2
- eine der Fig. 1 entsprechende Draufsicht auf einen Unterwagen mit eingefahrenen Schiebeholmen und
- Fig. 3
- eine der Fig. 1 entsprechende Draufsicht auf einen Unterwagen, bei dem die Schiebeholme der rechten Seite ausgefahren und die Schiebeholme der linken Seite eingefahren sind.
Claims (4)
- Kranfahrzeug mit einer Überlastsicherungseinrichtung,mit einem an dessen Oberwagen angelenkten Ausleger (5), vorzugsweise Teleskopausleger, der durch einen an diesem und dem Oberwagen angelenkten Wippzylinder wippbar ist,mit an den einander gegenüberliegenden Endbereichen der Längsseiten des Unterwagens (1) angeordneten ausfahrbaren Schiebeholmen (2), die an ihren Enden mit ausfahrbaren Stützfüßen (3) versehen sind, undmit einer den Drehwinkel des Auslegers messenden Einrichtung, deren Signale einer Verarbeitungseinheit der Überlastsicherungseinrichtung zugeführt werden,bei dem die Überlastsicherungseinrichtung ein Warnsignal erzeugt und/oder den Kranbetrieb stoppt, wenn der Kran seine Standsicherheit gefährdenden Grenzen anfährt oder überschreitet,wobei eine den Ausfahrzustand bzw. die Ausfahrlänge der Schiebeholme erfassende Überwachungseinrichtung vorgesehen ist, die der jeweiligen Ausfahrlänge der einzelnen Schiebeholme entsprechende Signale der Überlastsicherungseinrichtung zuführt, die Verarbeitungseinheit der Überlastsicherungseinheit aus den Signalen der Überwachungseinrichtung für die Ausfahrlänge der Schiebeholme und aus den Signalen der den Drehwinkel des Auslegers messenden Einrichtung für jeden Drehwinkel des Auslegers die sich aus dem Ausfahrzustand der Schiebeholme ergebende Standsicherheit des Stand-Vierecks ermittelt, undder 360°-Drehwinkel des Auslegers in mehrere Drehwinkelbereiche aufgeteilt ist,
- Kranfahrzeug nach Anspruch 1, dadurch gekennzeichnet, daß der 360°-Drehwinkel des Auslegers (5) zur Bestimmung der Standsicherheitswerte des Stand-Vierecks in vier Quadranten aufgeteilt ist.
- Kranfahrzeug nach Anspruch 1, dadurch gekennzeichnet, daß aus den gemessenen Werten des Drehwinkels des Auslegers (5) und der Ausfahrlängen der Schiebeholme (2) die im Sicherheitsbereich liegenden Winkelbereiche ermittelt werden, in denen der Ausleger (5) bei vorgegebener Last bis zu einem vorgegebenen kleinsten Wippwinkel des Auslegers (oder mit höchst zulässigem Moment) gedreht werden kann.
- Kranfahrzeug nach Anspruch 3, dadurch gekennzeichnet, daß für jeden Ausfahrzustand der Schiebeholme (2) vier Winkelbereiche gebildet werden, deren Grenzen aus den von der Drehachse des Auslegers (5) zu den die Stützfüße (3) tragenden Enden der Schiebeholme (2) gezogenen Linien bestehen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29519928U DE29519928U1 (de) | 1995-12-15 | 1995-12-15 | Kranfahrzeug mit einer Überlastsicherungseinrichtung |
DE29519928U | 1995-12-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0779237A2 EP0779237A2 (de) | 1997-06-18 |
EP0779237A3 EP0779237A3 (de) | 1997-07-09 |
EP0779237B1 true EP0779237B1 (de) | 2001-10-10 |
Family
ID=8016782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96118130A Expired - Lifetime EP0779237B1 (de) | 1995-12-15 | 1996-11-12 | Kranfahrzeug mit einer Überlastsicherungseinrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US5887735A (de) |
EP (1) | EP0779237B1 (de) |
JP (1) | JPH09175785A (de) |
KR (1) | KR100427506B1 (de) |
DE (2) | DE29519928U1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202006017724U1 (de) * | 2006-11-21 | 2008-04-03 | Liebherr-Werk Ehingen Gmbh | Mobilkran |
CN103043581A (zh) * | 2012-12-21 | 2013-04-17 | 三一重工股份有限公司 | 一种转台限位装置、方法及工程机械 |
DE102011119654A1 (de) | 2011-11-29 | 2013-05-29 | Liebherr-Werk Ehingen Gmbh | Mobile Arbeitsmaschine, insbesondere Fahrzeugkran |
CN109592567A (zh) * | 2018-12-10 | 2019-04-09 | 中联重科股份有限公司 | 用于工程机械的控制系统、方法及工程机械 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6269635B1 (en) | 1999-01-20 | 2001-08-07 | Manitowoc Crane Group, Inc. | Control and hydraulic system for a liftcrane |
JP3683571B2 (ja) * | 2003-04-10 | 2005-08-17 | 古河機械金属株式会社 | クレーンの転倒防止装置 |
DE202005013310U1 (de) * | 2005-08-23 | 2007-01-04 | Liebherr-Hydraulikbagger Gmbh | Überlastwarneinrichtung für Bagger |
US7525276B2 (en) * | 2005-09-13 | 2009-04-28 | Romer, Inc. | Vehicle having an articulator |
DE102006031257A1 (de) * | 2006-07-06 | 2008-01-10 | Putzmeister Ag | Autobetonpumpe mit Knickmast |
DE102008055625A1 (de) * | 2008-11-03 | 2010-05-06 | Putzmeister Concrete Pumps Gmbh | Fahrbare Arbeitsmaschine mit Stützauslegern |
CN101746675B (zh) * | 2009-12-31 | 2012-05-02 | 三一汽车制造有限公司 | 起重机超起装置及其控制系统和控制方法 |
DE102010056584B4 (de) | 2010-12-30 | 2018-03-29 | Asm Automation Sensorik Messtechnik Gmbh | Mobile Arbeitsmaschine |
AT511234B1 (de) * | 2011-04-08 | 2013-05-15 | Palfinger Ag | Standsicherheitsüberwachung eines auf einem fahrzeug montierten ladekrans |
DE102012011871B4 (de) * | 2012-06-13 | 2020-09-03 | Liebherr-Werk Ehingen Gmbh | Verfahren zur Überwachung der Kransicherheit sowie Kran |
AT13517U1 (de) * | 2012-10-19 | 2014-02-15 | Palfinger Ag | Sicherheitseinrichtung für einen Kran |
DE102013201860A1 (de) * | 2013-02-05 | 2014-08-07 | Terex Cranes Germany Gmbh | Verfahren zur Beeinflussung einer auf einen Seiltrieb wirkenden Seilwindenkraft und Vorrichtung zur Durchführung eines derartigen Verfahrens |
FR3002799B1 (fr) * | 2013-03-01 | 2015-07-31 | Haulotte Group | Cellule de mesure d'effort pour nacelle elevatrice et nacelle elevatrice comprenant une telle cellule |
DE102014008117A1 (de) * | 2014-06-03 | 2015-12-03 | Liebherr-Werk Ehingen Gmbh | Mobile Arbeitsmaschine mit Abstützung und Verlängerung zur Verbreiterung der Stützbasis |
IT201700037143A1 (it) * | 2017-04-05 | 2018-10-05 | Jacques Tranchero | Gru con sistema antiribaltamento settoriale |
EP3450384A3 (de) | 2017-08-28 | 2019-05-08 | Manitowoc Crane Companies, LLC | Kran-kontrollsystem, welches zur erzeugung eines arbeitsbereichsdiagramms konfiguriert ist, arbeitsbereichdiagramm für einen kran und verfahren zur erzeugung eines arbeitsbereichdiagramms für einen kran. |
CN108892038B (zh) * | 2018-06-07 | 2021-02-05 | 河南华东工控技术有限公司 | 一种起重机械远程无线安全监控管理系统 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2230840C2 (de) * | 1972-06-23 | 1982-05-06 | Carl Metz Gmbh, 7500 Karlsruhe | Trägerfahrzeug mit einem hinsichtlich seiner Länge und seiner Stellung im Raum veränderbaren Tragbalken |
FR2501390A1 (fr) * | 1981-03-05 | 1982-09-10 | Camiva | Dispositif de commande a microprocesseur pour echelle orientable deployable ou bras elevateur analogue |
DE3420596C2 (de) * | 1984-06-01 | 1986-10-02 | Dr.-Ing. Ludwig Pietzsch Gmbh & Co, 7505 Ettlingen | Überwachungs- und Steuersystem für Auslegerkrane |
DE3605462A1 (de) * | 1986-02-24 | 1987-08-27 | Mo N Proizv Ob Str Dorozh Mash | Verfahren zur sicherung eines gefahrlosen betriebes von selbstfahrenden auslegerkranen und system zur durchfuehrung desselben |
US4833615A (en) * | 1986-10-15 | 1989-05-23 | A.G.A. Credit | System for the protection of an aerial device having a pivotable boom |
JPH085623B2 (ja) * | 1989-09-27 | 1996-01-24 | 株式会社神戸製鋼所 | クレーンの安全装置 |
JP2564060B2 (ja) * | 1991-10-24 | 1996-12-18 | 株式会社神戸製鋼所 | 建設機械の安全装置 |
-
1995
- 1995-12-15 DE DE29519928U patent/DE29519928U1/de not_active Expired - Lifetime
-
1996
- 1996-11-12 EP EP96118130A patent/EP0779237B1/de not_active Expired - Lifetime
- 1996-11-12 DE DE59607876T patent/DE59607876D1/de not_active Expired - Lifetime
- 1996-12-12 KR KR1019960064722A patent/KR100427506B1/ko not_active IP Right Cessation
- 1996-12-16 JP JP8335671A patent/JPH09175785A/ja not_active Revoked
-
1997
- 1997-09-29 US US08/939,188 patent/US5887735A/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202006017724U1 (de) * | 2006-11-21 | 2008-04-03 | Liebherr-Werk Ehingen Gmbh | Mobilkran |
EP1925585A1 (de) | 2006-11-21 | 2008-05-28 | Liebherr-Werk Ehingen GmbH | Mobilkran |
DE102011119654A1 (de) | 2011-11-29 | 2013-05-29 | Liebherr-Werk Ehingen Gmbh | Mobile Arbeitsmaschine, insbesondere Fahrzeugkran |
DE102011119654B4 (de) * | 2011-11-29 | 2015-11-12 | Liebherr-Werk Ehingen Gmbh | Mobile Arbeitsmaschine, insbesondere Fahrzeugkran |
CN103043581A (zh) * | 2012-12-21 | 2013-04-17 | 三一重工股份有限公司 | 一种转台限位装置、方法及工程机械 |
CN103043581B (zh) * | 2012-12-21 | 2016-04-06 | 三一重工股份有限公司 | 一种转台限位装置、方法及工程机械 |
CN109592567A (zh) * | 2018-12-10 | 2019-04-09 | 中联重科股份有限公司 | 用于工程机械的控制系统、方法及工程机械 |
Also Published As
Publication number | Publication date |
---|---|
US5887735A (en) | 1999-03-30 |
KR100427506B1 (ko) | 2004-07-14 |
JPH09175785A (ja) | 1997-07-08 |
DE29519928U1 (de) | 1996-04-04 |
DE59607876D1 (de) | 2001-11-15 |
KR970042227A (ko) | 1997-07-24 |
EP0779237A2 (de) | 1997-06-18 |
EP0779237A3 (de) | 1997-07-09 |
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