ES2432523T3 - Telescopic boom - Google Patents
Telescopic boom Download PDFInfo
- Publication number
- ES2432523T3 ES2432523T3 ES09075524T ES09075524T ES2432523T3 ES 2432523 T3 ES2432523 T3 ES 2432523T3 ES 09075524 T ES09075524 T ES 09075524T ES 09075524 T ES09075524 T ES 09075524T ES 2432523 T3 ES2432523 T3 ES 2432523T3
- Authority
- ES
- Spain
- Prior art keywords
- box
- inner box
- head
- safety
- interlocking
- 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.)
- Active
Links
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
- B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
Description
Pluma telescópica Telescopic boom
La invención se refiere a una pluma telescópica, especialmente una pluma telescópica para grúa móvil, con una caja básica, dentro de la cual están guiadas una o varias cajas interiores, fundamentalmente en forma coaxial una dentro de la otra, las cuales son desplazables en extensión o retracción, una tras otra, a través de un sistema telescópico configurado como sistema hidráulico cilindro/émbolo, estando fijado el sistema hidráulico cilindro/émbolo a la caja básica en uno de sus dos extremos, y pudiendo ser acoplado con su parte extensible a la respectiva caja interior a desplazar mediante una unidad de seguridad y de enclavamiento (SVE), siendo enclavable mecánicamente la caja interior respectiva respecto a la caja interior inmediatemente más grande, o bien respecto a la caja básica, en al menos una posición de retracción y en la posición extendida, a través de un dispositivo de sujeción con bulones que es accionable mediante las unidades de seguridad y de enclavamiento (SVE), y siendo desenclavable inmediantamente antes del procedimiento para la realización del acoplamiento, y estando previsto en la primera caja más interior, en su extremo exterior, una cabeza con o sin poleas de inversión. The invention relates to a telescopic boom, especially a telescopic boom for mobile crane, with a basic box, within which one or several inner boxes are guided, mainly in coaxial form one inside the other, which are movable in extension or retraction, one after the other, through a telescopic system configured as a cylinder / piston hydraulic system, the cylinder / piston hydraulic system being fixed to the basic housing at one of its two ends, and can be coupled with its extensible part to the respective inner box to be moved by means of a safety and interlocking unit (EVS), the respective inner box being mechanically interlocked with respect to the immediately larger inner box, or with respect to the basic box, in at least one retraction position and in the extended position, through a bolt clamping device that is operable by means of safety and ignition units washing (EVS), and being immediately removable before the procedure for the realization of the coupling, and being provided in the first innermost box, at its outer end, a head with or without reversing pulleys.
Del documento DE 101 42 847 C1 es conocida una pluma telescópica con una unidad de seguridad y de enclavamiento – denominada en forma abreviada como SVE – configurada de esa manera. From document DE 101 42 847 C1 a telescopic boom with a safety and interlocking unit - abbreviated as EVS - is configured in this way.
Además, del documento DE 10 2006 023 371A1 es conocido el configurar la pluma de la grúa como extensible, para lo cual la cabeza que aloja a la polea de inversión está configurada de tal manera que todas las piezas necesarias para el funcionamiento de la misma están colocadan sobre el perímetro exterior de la caja más interior hasta entonces, de forma que la sección transversal delantera de esa caja más interior está tan libre que otra caja que sirva para otro alargamiento pueda introducirse en esa caja, que hasta ahora ha sido la más interior. In addition, from DE 10 2006 023 371A1 it is known to configure the crane boom as extensible, for which the head that houses the reversing pulley is configured in such a way that all the parts necessary for its operation are place on the outer perimeter of the innermost box until then, so that the front cross-section of that innermost box is so free that another box that serves another elongation can be introduced into that box, which until now has been the innermost .
El objetivo de la invención el facilitar la introducción, y especialmente la unión de la nueva caja con la caja interior que la aloja. The objective of the invention is to facilitate the introduction, and especially the union of the new box with the inner box that houses it.
El objetivo se alcanza, según la invención, porque la cabeza está configurada de tal forma que todas las piezas pertenecientes a la cabeza están colocados por fuera de la sección transversal libre de esa caja interior, de forma que para un alargamiento de la pluma pueda introducirse otra caja de pluma adicional en esa caja interior, porque en el lado interior de la cabeza está colocada respectivamente, de forma contrapuesta diametralmente, una horquilla de fijación con bulones, abierta hacia fuera, en la cual pueden empotrarse los bulones de enclavamiento de la nueva caja interior a introducir, para su centrado, y porque la unidad de seguridad y de enclavamiento es extensible o retráctil hasta la posición del bulón de enclavamiento, para el acoplamiento de esa caja interior. The objective is achieved, according to the invention, because the head is configured so that all the pieces belonging to the head are placed outside the free cross-section of that inner box, so that for a lengthening of the pen it can be introduced another additional pen box in that inner box, because on the inside side of the head there is placed respectively, diametrically opposed, a fixing fork with bolts, open outwards, in which the interlocking bolts of the new one can be embedded inner box to be introduced, for centering, and because the safety and interlocking unit is extensible or retractable to the position of the interlocking bolt, for the coupling of that inner box.
Las horquillas de fijación con bulones, dispuestas a ambos lados de la cabeza y abiertas hacia delante, posibilitan una colocación sencilla de la nueva caja interior que ha de introducirse mediante sus bulones de enclavamiento, colocados asimismo a ambos lados y de forma congruente con las horquillas de fijación con bulones. El sistema telescópico se desplaza dentro de la caja que se va a introducir hasta que se acopla (asegura) con la unidad de seguridad y de enclavamiento (SVE), la cual se encuentra sobre el cilindro extensible, y a continuación puede desenclavar mecánicamente los bulones de enclavamiento. Después, la caja que se va a introducir es arrastrada hacia el interior de la pieza existente de la pluma mediante la unidad telescópica, y puede ser enclavada de nuevo discrecionalmente en cada posición de enclavamiento. Este proceso tiene lugar automáticamente mediante el control existente. El desmontaje tiene lugar con el orden inverso. The fixing pins with bolts, arranged on both sides of the head and open forwards, allow a simple placement of the new inner box to be introduced by means of their interlocking bolts, also placed on both sides and in a manner consistent with the forks of fixation with bolts. The telescopic system moves inside the box to be inserted until it engages (secures) with the safety and interlocking unit (EVS), which is located on the extendable cylinder, and can then mechanically unlock the bolts interlocking Then, the box to be introduced is dragged into the existing part of the pen by means of the telescopic unit, and can be again discretionary locked in each interlocking position. This process takes place automatically through the existing control. Disassembly takes place in the reverse order.
La invención se describe a continuación con referencia a los dibujos. Ahí se muestra: The invention is described below with reference to the drawings. There it shows:
Fig.1 una vista en perspectiva de la cabeza de una caja receptora de una pluma telescópica, y una nueva caja que ha de introducirse en la misma, Fig. 1 a perspective view of the head of a receiver box of a telescopic boom, and a new box to be introduced therein,
Fig.2 la introducción, y Fig. 2 the introduction, and
Fig.3 la caja introducida y la caja receptora cortadas respectivamente, con el sistema telescópico colocado en su interior, y la unidad de seguridad y de enclavamiento (SVE). Fig. 3 the box inserted and the receiver box cut respectively, with the telescopic system placed inside, and the safety and interlocking unit (EVS).
La caja receptora de una pluma telescópica, que puede ser una caja interior o también la caja base, está descrita con el 1 en las figuras. The receiver box of a telescopic boom, which can be an inner box or also the base box, is described with 1 in the figures.
Según el documento DE 10 2006 023 371A1, esa caja está dotada en su extremo delantero con una cabeza 8, la cual soporta las poleas 9 de inversión, estando dispuesta esa cabeza, con todas sus piezas funcionales, de forma que rodea el perímetro exterior de la caja 1, de forma que la superficie transversal delantera interior de la misma permanece libre. According to document DE 10 2006 023 371A1, that box is provided at its front end with a head 8, which supports the reversing pulleys 9, that head being arranged, with all its functional parts, so that it surrounds the outer perimeter of the box 1, so that the inner front transverse surface thereof remains free.
Con ello puede introducirse, para el alargamiento de la pluma, una nueva caja interior 2 en esa caja receptora 1. With this, a new inner box 2 can be introduced into the receiver box 1 for elongation of the boom.
Esta caja interior está dotada en su extremo posterior con los bulones usuales 4 de enclavamiento. This inner box is provided at its rear end with the usual interlocking bolts 4.
A fin de facilitar ahora la unión de las dos cajas 1 y 2, se han colocado en la cabeza 8, en su lado interior, horquillas 3 de fijación con bulones, dispuestas de forma diametralmente contrapuestas entre sí, y abiertas hacia fuera. In order to facilitate now the joining of the two boxes 1 and 2, fixing pins with pins, arranged diametrically opposed to each other, and open outwards have been placed on the head 8, on their inner side.
En ellas se introducen los bulones de enclavamiento 4, de forma que con ello se posicionan las dos cajas una respecto a la otra. The interlocking bolts 4 are introduced therein, so that the two boxes are positioned relative to each other.
5 Esto está representado en la figura 2. 5 This is represented in Figure 2.
La figura 3 muestra el sistema telescópico 6, 10 colocado en el interior de las cajas, con la unidad de seguridad y de enclavamiento 7, la cual se encuentra sobre el cilindro extensible 10. Figure 3 shows the telescopic system 6, 10 placed inside the boxes, with the safety and interlocking unit 7, which is located on the extensible cylinder 10.
El sistema telescópico penetra en la caja 2 a introducir hasta que acopla (asegura) la caja con la unidad de seguridad y de enclavamiento 7 (SVE), la cual se encuentra sobre el cilindro extensible 10, y a continuación puede The telescopic system penetrates the box 2 to be introduced until it engages (secures) the box with the safety and interlocking unit 7 (EVS), which is located on the extensible cylinder 10, and then can
10 desenclavar mecánicamente los bulones 4 de enclavamiento. Después, la caja 2 que se va a introducir es arrastrada hacia el interior de la pieza 1 existente de la pluma mediante la unidad telescópica, y puede ser enclavada de nuevo discrecionalmente en cada posición de enclavamiento. 10 mechanically unlocking the locking bolts 4. Then, the box 2 to be introduced is dragged into the existing part 1 of the pen by means of the telescopic unit, and can be locked again discretionary in each interlocking position.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202008016604U | 2008-12-15 | ||
DE200820016604 DE202008016604U1 (en) | 2008-12-15 | 2008-12-15 | telescopic boom |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2432523T3 true ES2432523T3 (en) | 2013-12-04 |
Family
ID=40459454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES09075524T Active ES2432523T3 (en) | 2008-12-15 | 2009-11-27 | Telescopic boom |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2196428B1 (en) |
CN (1) | CN101746682B (en) |
DE (1) | DE202008016604U1 (en) |
ES (1) | ES2432523T3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013011173B4 (en) * | 2013-07-04 | 2019-05-23 | Liebherr-Werk Ehingen Gmbh | Method for assembling a crane as well as articulation, telescopic boom and crane |
JP2022084003A (en) * | 2020-11-25 | 2022-06-06 | タダノ デマグ ゲーエムベーハー | Telescopic jib system of mobile crane with basic telescopic jib and additional telescopic jib and corresponding method |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4492311A (en) * | 1981-08-17 | 1985-01-08 | Fmc Corporation | Coupling and latching mechanism for extensible boom |
US4664272A (en) * | 1981-11-05 | 1987-05-12 | Kidde, Inc. | Telescoping crane boom with locking and indicator means |
AT403040B (en) * | 1994-03-18 | 1997-10-27 | Zimmermann Horst | TELESCOPIC STICK |
DE19824671C2 (en) * | 1997-05-28 | 2002-09-19 | Mannesmann Ag | Crane with a telescopic boom |
DE29824453U1 (en) * | 1997-05-28 | 2001-03-01 | Mannesmann Ag | Crane with a telescopic boom |
DE10142847C1 (en) | 2001-08-29 | 2002-11-21 | Demag Mobile Cranes Gmbh & Co | Telescopic extension, for mobile crane, has inner casings extended in succession via hydraulic two-stage piston/cylinder system |
DE102006023371A1 (en) | 2006-05-16 | 2007-11-22 | Terex-Demag Gmbh & Co. Kg | Telescopic crane jib |
DE102007052954B3 (en) * | 2007-10-31 | 2009-07-09 | Terex Demag Gmbh | Crane with telescopic boom |
-
2008
- 2008-12-15 DE DE200820016604 patent/DE202008016604U1/en not_active Expired - Lifetime
-
2009
- 2009-10-15 CN CN200910206354.0A patent/CN101746682B/en active Active
- 2009-11-27 EP EP20090075524 patent/EP2196428B1/en active Active
- 2009-11-27 ES ES09075524T patent/ES2432523T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE202008016604U1 (en) | 2009-03-19 |
EP2196428B1 (en) | 2013-07-31 |
EP2196428A1 (en) | 2010-06-16 |
CN101746682A (en) | 2010-06-23 |
CN101746682B (en) | 2014-04-30 |
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