EP4107110A1 - Turmkran mit hilfshubseil - Google Patents
Turmkran mit hilfshubseilInfo
- Publication number
- EP4107110A1 EP4107110A1 EP21716288.2A EP21716288A EP4107110A1 EP 4107110 A1 EP4107110 A1 EP 4107110A1 EP 21716288 A EP21716288 A EP 21716288A EP 4107110 A1 EP4107110 A1 EP 4107110A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crane
- tower
- rope
- arm
- deflection arm
- 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
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
- B66C23/18—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
- B66C23/32—Self-hoisting cranes
Definitions
- the invention relates to a tower crane with a luffing jib or trolley jib and a hoist rope which is guided over a roller of the luffing jib or the trolley of the trolley jib and is connected to a crane load hook.
- an auxiliary crane For the assembly of a tower crane with a luffing jib or trolley jib, an auxiliary crane is usually required that lifts the individual lattice pieces and other add-on components to the required installation height.
- Add-on components can be climbing ladders to be attached to the crane tower, which allow the crane operator to climb up to the crane cabin. Bracing rods must also be raised to the assembly position.
- the object of the present invention is therefore to provide a solution to the above problem.
- the crane load hook of the tower crane can be connected to a separate auxiliary hoisting rope for the aforementioned assembly process.
- This auxiliary hoist rope has, on the one hand, a suitable connecting means for direct or indirect connection to the crane load hook, while the other end of the auxiliary hoist rope is provided with a suitable load-bearing means. It is also proposed to guide the auxiliary hoist rope from the connection point with the crane hoist rope via a new type of rope deflection device in the direction of the crane tower. After the redirection, the auxiliary hoist rope can run from the Seilumlenkvor direction directly next to the crane tower to the ground.
- the skillful deflection of the auxiliary hoist rope by means of the rope deflection device according to the invention makes it possible to lift certain crane components for assembly on the crane without inclined pulling of the hoist rope sufficiently close to the crane tower with one's own tower crane. With climbing cranes, for example, this enables the climbing ladders to be gradually adjusted during the climbing process.
- the rope deflection device according to the invention can also be used with the auxiliary hoisting rope for any other crane components that have to be installed or dismantled during operation. Due to the rope deflection device, not only is the crane lifting rope prevented from pulling at an angle, the auxiliary The hoist rope can run almost vertically and without diagonal pull parallel to the crane tower directly next to it.
- the crane load hook can be connected directly or indirectly to the auxiliary hoist rope.
- the auxiliary hoisting rope can have a loop at the end for attaching the load hook.
- the connection can also be made indirectly by connecting the load hook to the auxiliary hoisting rope via intermediate pieces such as chains.
- the rope deflecting device can comprise a rope deflecting arm articulated on the crane tower.
- This can be equipped with at least two pulleys that lead the auxiliary hoist rope from the area of the connection point with the hoist rope of the tower crane in the direction of the crane tower.
- the length of the rope deflection arm or the extension of the rope deflection arm is adapted to or corresponds to the minimum possible extension of the hoist rope of the tower crane, which is limited by the geometry of the luffing jib or the minimum return position of the trolley.
- the crane hoist rope can be guided in the direction of the rope deflection arm with no or only an unwe sentlichen diagonal pull.
- the auxiliary hoist rope is deflected, for example, by a first outer rope pulley, which is mounted on the outer end of the rope deflection arm, and guided in the direction of the crane tower.
- a second rope pulley which is preferably mounted directly in the area of the attachment point of the rope deflection arm on the crane tower, the auxiliary hoist rope is then deflected vertically downwards parallel to the tower.
- the rope deflection arm protrudes from the tower crane at a perpendicular angle. It is also conceivable that the cable deflection arm is mounted so as to be pivotable relative to the tower. The movement around the pivot axis allows preference as an adjustment of the projection of the rope deflection arm. The rope deflection arm can also be swiveled away to save space if it is not needed. Ideally, the rope deflection arm can be pivoted into a position on the tower. A mounting around a horizontal pivot axis is preferred; the cable deflection arm can then be pivoted from a vertically cantilevered position into a position lying down on the crane tower. However, there is also the possibility of a pivotable mounting around a vertical axis or around several pivot axes.
- the cable deflection arm can be designed in several parts, with individual components being able to be connected so that they can be folded away relative to one another
- a mechanism for limiting the maximum pivoting movement is useful.
- One possibility is to use one or more boundary ropes that connect the rope deflection arm to the crane tower.
- boundary ropes are fixed at the outer end of the arm and run to an area of the crane tower below the rope deflection arm.
- the ropes are tensioned by the pivoting movement and thereby limit the pivoting angle.
- the length of the boundary ropes is ideally chosen so that the rope deflection arm cannot be swiveled upwards beyond a right angle with respect to the crane tower with a horizontal swivel axis.
- the projection can be varied by the luffing angle of the rope deflection arm.
- the rope arm is designed to be telescopic.
- several different bearing points for at least one rope pulley are provided on the lumlenkarm.
- the outer rope pulley can be mounted in different positions.
- the rope deflection arm can either be mounted directly on the crane structure, in particular the tower section, by means of the swivel bearing. However, it is better to use a mounting bracket that holds the bearing. The rope deflection arm can can then be dismantled or assembled by the crane together with the bearing and console.
- the mounting bracket is preferably screwed ver with vertical alignment on the lattice piece, especially in the area of the junction between adjacent lattice pieces.
- the present invention also relates to a rope deflection arm for mounting on a tower crane according to the present invention.
- the rope deflection arm is characterized in particular by the features and properties described above, as they were presented in connection with the tower crane. For this reason, a repetitive description is dispensed with.
- the invention also relates to its use according to the invention for mounting one or more climbing ladders and / or guy rods on a tower crane, in particular a tower crane with a climbing device.
- FIG. 1 a detailed view of the crane tower according to the invention in the area of the bearing point of the cable deflection arm in the unfolded position
- FIG. 2 the detailed view according to FIG. 2 with the deflecting arm folded in and
- FIG. 3 a rear view of the deflecting arm according to the invention through the crane tower.
- Figures 1-3 show schematic sketches of a portion of the tower of a tower crane with a mounted rope deflection arm 10. You can see the two grid elements 1, 2 of the crane tower, at their connection interface 12 of the appropriate deflection arm 10 is mounted.
- the deflecting arm 10 is formed by an elongated steel profile which, for example, can specifically be a U-profile that is open in the unfolded position downwards. The bottom surface of the U-profile can also protrude beyond the side surfaces. However, this is only one of many possible profile shapes.
- the deflection arm 10 is installed by means of a mounting bracket that is screwed flat to the grid elements 1, 2.
- a swivel bearing for connecting the deflection arm 10 so that it can be swiveled in the assembled position about a horizontal axis A with respect to the crane tower.
- the deflecting arm 10 comprises two mounted deflecting rollers 13, 14 with an outer deflecting roller 13 at the outer end of the arm and a second deflecting roller 14 directly in the area of the console 11.
- the deflecting arm is designed as a downwardly open U-profile, the pulleys 13, 14 be stored between the side walls.
- the deflection arm 10 is pivotably mounted on the bracket 11 about the horizontal pivot axis, so that it can be folded down from the position shown in FIG.
- the entire rope deflection device is equipped with an auxiliary hoisting rope 15 which can be picked up by a load hook 20 of the tower crane.
- the auxiliary hoist rope 15 comprises a loop to hang the load handling device 20.
- the auxiliary hoist rope 15 is deflected by the outer rope pulley 13 in the direction of the crane tower to the second rope pulley 14. This leads the auxiliary hoisting rope 15 vertically downwards, so that the auxiliary hoisting rope 15, starting from the pulley 14, runs vertically downwards in the direction of the ground immediately next to the crane tower.
- a load handling device 16 for picking up one or more crane components such as climbing ladders or guy rods installed.
- the Seilumlenkarm 10 is connected at the end with two Limiting cables 22, which extend from the end of the arm down towards the crane tower and are fixed to one of the front corner posts.
- the rope deflection arm 10 is pivoted about the horizontal axis A upwards, the limiting ropes 22 span until a rocking angle of the deflection arm of about 90 ° to the tower axis is reached. Any further pivoting movement is prevented.
- FIG. 3 again shows a view of the rope deflection arm 10 according to the invention on its underside in the folded-in position according to FIG. so that it can be installed on the rope deflection arm 10 with a different projection.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020108747.0A DE102020108747A1 (de) | 2020-03-30 | 2020-03-30 | Turmkran mit Hilfshubseil |
| PCT/EP2021/057749 WO2021198016A1 (de) | 2020-03-30 | 2021-03-25 | Turmkran mit hilfshubseil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4107110A1 true EP4107110A1 (de) | 2022-12-28 |
| EP4107110B1 EP4107110B1 (de) | 2026-02-11 |
Family
ID=75377723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21716288.2A Active EP4107110B1 (de) | 2020-03-30 | 2021-03-25 | Turmkran mit hilfshubseil |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4107110B1 (de) |
| DE (1) | DE102020108747A1 (de) |
| WO (1) | WO2021198016A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1198981B (de) * | 1964-03-06 | 1965-08-19 | Bbc Brown Boveri & Cie | Montagegeraet fuer Rohrantennenelemente und Mastbauwerke |
| DE3840408A1 (de) * | 1988-03-23 | 1989-10-05 | Liebherr Werk Ehingen | Fahrzeugkran mit teleskopausleger |
| EP0334187B1 (de) * | 1988-03-23 | 1991-10-16 | Liebherr-Werk Ehingen GmbH | Fahrzeugkran mit Teleskopausleger |
| DE102013006104A1 (de) * | 2013-04-09 | 2014-10-09 | Liebherr-Werk Biberach Gmbh | Faltbarer Kranausleger und Kran |
| US20160002010A1 (en) * | 2014-07-01 | 2016-01-07 | Marvin M. May | Stabilization and control of a crane load |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE218877C (de) * | 1909-04-11 | 1910-02-11 | Duisburger Maschinebau | Auslegerkran mit der Höhenrichtung verstellbarem Ausleger |
| FR2172923B1 (de) * | 1972-02-24 | 1974-08-02 | Potain Sa | |
| JPS6026493U (ja) * | 1983-07-27 | 1985-02-22 | 株式会社 巴組技研 | 塔形ジブクレ−ンの下部旋回支持装置 |
-
2020
- 2020-03-30 DE DE102020108747.0A patent/DE102020108747A1/de active Pending
-
2021
- 2021-03-25 WO PCT/EP2021/057749 patent/WO2021198016A1/de not_active Ceased
- 2021-03-25 EP EP21716288.2A patent/EP4107110B1/de active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1198981B (de) * | 1964-03-06 | 1965-08-19 | Bbc Brown Boveri & Cie | Montagegeraet fuer Rohrantennenelemente und Mastbauwerke |
| DE3840408A1 (de) * | 1988-03-23 | 1989-10-05 | Liebherr Werk Ehingen | Fahrzeugkran mit teleskopausleger |
| EP0334187B1 (de) * | 1988-03-23 | 1991-10-16 | Liebherr-Werk Ehingen GmbH | Fahrzeugkran mit Teleskopausleger |
| DE102013006104A1 (de) * | 2013-04-09 | 2014-10-09 | Liebherr-Werk Biberach Gmbh | Faltbarer Kranausleger und Kran |
| US20160002010A1 (en) * | 2014-07-01 | 2016-01-07 | Marvin M. May | Stabilization and control of a crane load |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4107110B1 (de) | 2026-02-11 |
| DE102020108747A1 (de) | 2021-09-30 |
| WO2021198016A1 (de) | 2021-10-07 |
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