EP3507232A1 - Tower crane - Google Patents
Tower craneInfo
- Publication number
- EP3507232A1 EP3507232A1 EP17765080.1A EP17765080A EP3507232A1 EP 3507232 A1 EP3507232 A1 EP 3507232A1 EP 17765080 A EP17765080 A EP 17765080A EP 3507232 A1 EP3507232 A1 EP 3507232A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tower
- jib
- counter
- crane
- tower crane
- 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
- 230000009194 climbing Effects 0.000 claims description 38
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- B66C23/72—Counterweights or supports for balancing lifting couples
-
- 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
- B66C23/283—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 assembled 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
- B66C23/54—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 with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
-
- 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
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
Definitions
- the invention relates to a tower crane, in particular tower crane, with a crane tower composed of several tower sections, with a main boom arranged on the crane tower and with a counterjib.
- Tower cranes are often used for particularly high lifting heights and heavy lifting capacities. Especially the construction of wind turbines requires high lifting heights and high payloads. It is desirable to install the hubs of wind turbines for efficiency reasons in ever greater height. However, the maximum possible mounting height is limited by the available hoist.
- a tower crane in particular a tower crane, more preferably a top turnner, is proposed with a crane tower composed of several tower sections, at the top of which a main boom and a counterpart boom are arranged.
- the novel tower crane is distinguished by the fact that a main lifting cable is guided on the main boom for load-bearing and at least one counter-boom lifting cable is guided over the counter-boom for receiving a compensating weight.
- About the Haupthubseil is usually recorded a load to be lifted.
- the counter jib lifting rope of the counter jib is used to ballast the crane with the necessary balance or counter ballast for the desired load stroke. This is preferably done by receiving conventional Jacobas- tiata or plates, which no longer need to be laboriously mounted on the counter-jib, but can be easily taken up by the stand surface by means of Gegenausleger- hoisting rope.
- the center of gravity of the counter ballast in crane operation can be positioned significantly lower by the inventive design, which, inter alia, brings significant advantages in the dimensioning of the crane, so that ultimately higher lifting heights and higher loads can be achieved.
- the balance weight to be lifted on the counterjib must be adjusted by load stroke.
- the dimensioning of the balance weight is optimal way that the recorded load of the main boom multiplied by the distance of the load pick-up point (crane hook of the main boom) to the tower center corresponds to the product of the balance weight and the distance of the receiving point (crane hook of the counter jib) to the tower center.
- the inclusion of the counterweight by means of the counter jib lifting cable is preferably carried out via a load hook, but alternative load handling means are also conceivable.
- the crane tower can ideally be designed as top slewing.
- the crane tower can be supported on the ground by means of an undercarriage or a cast-in connection piece.
- the counter-jib is arranged tiltably on the tower top of the crane.
- a tiltable mounting of the main boom on the crane tower is also conceivable. By tilting the main boom, the corresponding lifting height can be variably adjusted or the distance of the recorded load to the crane tower can be changed.
- the tiltable counter-jib there is also the possibility of a flexible adjustment of the distance of the recorded counterweight ballast against the crane tower, so that there is a particularly flexible Ballast istsmög- ability for the entire tower crane.
- the crane tower comprises at least one climbing piece, which allows an extension or shortening of the crane tower taking place during crane operation.
- the climbing piece By means of the climbing piece, one or more additional tower pieces can be attached or removed at the top of the tower in crane operation, as a result of which the crane tower can grow along with the construction progress.
- the climbing piece represents the tower top of the crane tower in crane operation.
- the climbing piece is rotatable about a vertical axis of rotation with respect to the remaining tower pieces of the crane tower.
- a corresponding pivot bearing in the climbing piece allows a rotational movement opposite the tower over the entire length of the tower.
- one or more brackets may be mounted laterally on the climbing piece.
- Such consoles may further be configured to receive one or more drive units of the crane.
- Corresponding drive units serve, for example, for driving the hoist winches installed on the boom system and / or the slewing gear and / or climbing drive of the climbing piece.
- one or more switch boxes for controlling the installed hydraulics or electrical system of the crane may be installed in at least one of the consoles. Also, the placement of one or more hydraulic tanks within the consoles is conceivable.
- the climbing piece is ideally displaceable in the vertical direction by means of a hydraulic drive, particularly preferably by means of a hydraulic cylinder.
- a hydraulic drive particularly preferably by means of a hydraulic cylinder.
- one or more stops are provided per tower piece, so that the combined set tower in the axial direction has a plurality of preferably equally spaced stops.
- Main boom and / or counter-jibs can be guyed over separate guy wires.
- the rocking angle of the boom can be adjusted preferably via the respective guy stranding, which is ideally operable by means of a winch.
- at least two bracing trestles are provided on the climbing piece, wherein each guy truss is connected to the corresponding guying stranding of the main boom or of the counterjib.
- a jib is connected to a guy stranding of the main boom, while the second jib is connected to a guy stranding of the counter jib.
- At least one, preferably all guy clamps are pivotally mounted on the consoles of the climbing piece.
- the jib of the main boom is pivotally mounted on the main boom receiving console. The same applies to the other jib of the counter-jib, which is pivotally attached to the bracket for the storage of the counter-jib.
- the guy brackets can be connected to each other via a length-adjustable connection, in particular stranding. Due to the length-adjustable connection, the angle of the respective guy clamps can be adjusted.
- the length adjustment of the connecting stranding of the guy blocks can preferably take place via a hoist winch. Conceivable, however, are alternative Versteilantriebe.
- main boom and / or counter-jib can be swung down so that they create almost parallel to the crane tower side. This is preferably done by draining the respective Abspannverseilungen and a corresponding elongation of the truss blocks connecting stranding. As a result, both arms are pivoted downwards in the direction of the crane tower, until they lie almost parallel to this.
- This crane condition represents a particularly advantageous decommissioning of the crane to its windage area as much as possible to reduce. This makes it possible to leave the crane set up even at higher wind speeds.
- the transfer to the inoperative position is preferably carried out by first draining the two guy wires until the main boom and counterjib are tipped as flat as possible, i. Both arms are in a nearly horizontal position. In this condition, the bolt between the guy brackets is loosened and the stranding extended accordingly so that the two arms pivot down towards the crane tower.
- a further advantageous embodiment of the invention can be arranged on the counter-jib at least one jib, preferably an additional jib is pivotally mounted on the outer tip of the counter jib.
- at least one Hilfsshubseil is guided over the jib.
- the hoist rope of the counter-jib is temporarily guided for the use of the jib over this.
- the jib ideally serves to receive one or more tower pieces to be able to place them in the climbing piece for the climbing process of the crane tower.
- the counter-jib and jib it is particularly expedient for the counter-jib and jib to be pivotable in such a way that the auxiliary hoisting rope or the tower section accommodated thereby can be brought into a position above the climbing section.
- the counter-jib is set almost vertical and the jib is pivoted over the top of the tower.
- the crane can provide that at least one collar is mounted around the crane tower.
- the at least one collar provides corresponding mounting points for the connection before one or more guying, starting from the collar in the direction of any fixing points on the Crane stand surface or a crane undercarriage.
- the bracing used is preferably at least partially made of rope and / or sheet material.
- Figure 1 a sketched side view of the crane turret invention
- Figures 2 to 4 outlined side views of the crane turret according to the invention during the climbing process in chronological order;
- Figure 5 the crane turret according to the invention with additional bracing of the crane tower and
- Figure 6, 7 outlined side views of the crane turret according to the invention during the shipment of the boom in the inoperative position.
- the crane according to the invention comprises a crane tower 1 composed of several tower sections 11.
- the crane tower 1 is supported on the floor by means of undercarriage 2.
- undercarriage 2 As an alternative to the undercarriage, a cast-in connection piece (not shown) could also be used.
- a rotatable and climbing climbing piece 3 is mounted around the tower 1.
- the climbing piece 3 is vertically along the tower 1 by means of a or a plurality of hydraulic cylinders 31 slidably.
- the hydraulic cylinder 31 is supported in suitable stops 12 of the tower 1 from.
- the climbing piece 3 two consoles 4, 5 are mounted on both sides, in which the drive units, control boxes, hydraulic tanks of the crane are installed.
- the attached to the front of the climbing piece 3 console 5 takes on the main boom 6, which is tiltably mounted on the bracket 5 in the bearing point 51.
- the main boom 6 is assembled from a plurality of boom pieces 61 and accordingly has a variable length.
- the counter-jib 7 is pivotally mounted in the bearing point 41 on the console 4, which is mounted on the back of the climbing piece 3.
- a hoist winch 72 is also mounted, on which the further hoist rope 73 is stored. With the hoist rope 73, the load hook 74 is actuated.
- the counter-jib 7 serves to balance the load received by the main boom 6. In this way, a complex assembly of the ballast weight on the counter-jib is obsolete, instead, the ballast elements can be easily absorbed via the crane hook 74. This method allows a lower center of gravity of the entire crane.
- the balance weight to be lifted on the counter-jib 7 must be adjusted by stroke. Basically:
- an auxiliary arm 8 is mounted on the counter-jib 7, which is pivotally mounted on the tip of the counter-jib 7.
- the jib 8 also has its own hoist winch 81 with hoist rope 82 and hooks 83 on.
- the Auxiliary boom 8 via the cylinder 84 hydraulically adjustable relative to the counter-jib 7.
- the jib 8 is u.a. used in "climbing", which will be discussed later during the description of the climbing process.
- brackets 9, 10 are pivotally mounted on both consoles 4, 5.
- the blocks 9, 10 are connected by means of connection 11 and serve to move the arms 6, 7 into an "inoperative division". This process will be described in detail later.
- the blocks 9, 10 are movable by means of hoist winch 91 and hoist rope 92, i. pivotable relative to the brackets 4, 5.
- the blocks 9, 10 are connected to each other.
- the main boom 6 is connected by means of the bracing 65 to the block 10.
- the length of the bracing 65 is adjustable by means of cable winch, whereby the horizontal distance between the load hook 64 and tower 1 can be changed. In this case, the main boom rotates about the bearing point 51 and there is a rocking movement of the boom 6.
- the climbing process ( Figures 2-4), in which the crane tower 1 is supplemented by one or more tower pieces 11a, proceeds as follows. With the jib 8 and hooks 83 a new tower section 11a is raised ( Figure 2). By pivoting the counter-jib 7, the distance of the load hook 83 is reduced to the center of the tower. Since the jib 8 is designed like a gantry, the tower section 1a is "rocked" by the jib 8 and placed above the remaining tower 1 ( Figure 3) By lowering the hoisting rope 82 by means of the hoist winch 81, the tower section 11a can be placed in the area of the climbing piece 3 are mounted on the uppermost lattice piece of the crane tower 1 (FIG. 3). piece 3 by means of the hydraulic cylinder 31, the entire unit push up (Figure 4).
- a collar 13 is mounted around the tower 1, as shown in FIG. Between the collar 13 and the foot points 21 of the undercarriage 2 a brace 14 is mounted.
- the brace 14 is usually made of rope or sheet material and is biased. Since the crane is now more stable, the crane can be increased with more tower pieces 11.
- the crane If the crane is to be taken out of service temporarily, it will be moved to a special "inoperative position" in order to reduce the resulting windage area of the entire crane construction as much as possible, thus allowing the crane to be set up even at higher wind speeds 65, 75 in order to luff the main and counter-outriggers 6, 7 as flat as possible (see Figure 6)
- the outriggers 6, 7 should assume a horizontal position, after which the connection 11 between the trestles 9 , 10 and by further lowering the hoist rope 92 by means of the hoist winch 91, the position of the blocks 9, 10 and thus the position of the arms 6, 7 are changed.
- the blocks 9, 10 move outwards and the booms 6, 7 are located in the "negative" rocker area.
- the final inoperative position is reached when main boom 6 and counter-jib 7 have created parallel to the crane tower 1 laterally on this (see Figure 7).
- the entire height of the crane is now significantly reduced and the resulting wind attack surface was significantly minimized.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Jib Cranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016011179.8A DE102016011179A1 (en) | 2016-09-15 | 2016-09-15 | tower crane |
PCT/EP2017/001077 WO2018050278A1 (en) | 2016-09-15 | 2017-09-12 | Tower crane |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3507232A1 true EP3507232A1 (en) | 2019-07-10 |
EP3507232B1 EP3507232B1 (en) | 2024-02-28 |
Family
ID=59856479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17765080.1A Active EP3507232B1 (en) | 2016-09-15 | 2017-09-12 | Tower crane |
Country Status (5)
Country | Link |
---|---|
US (1) | US10934140B2 (en) |
EP (1) | EP3507232B1 (en) |
CN (1) | CN109803915B (en) |
DE (1) | DE102016011179A1 (en) |
WO (1) | WO2018050278A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019101305A1 (en) * | 2019-01-18 | 2020-07-23 | Liebherr-Werk Nenzing Gmbh | Modular trench cutter |
CN111762699A (en) * | 2020-06-29 | 2020-10-13 | 中建三局集团有限公司 | Safety tower crane and implementation method thereof |
CN113264459A (en) * | 2021-05-31 | 2021-08-17 | 湖南三一塔式起重机械有限公司 | Tower crane and jacking and balancing method thereof |
CN117185151B (en) * | 2023-09-15 | 2024-07-02 | 惠州市国祥粮食加工有限公司 | Outdoor grain overhead hoist |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1192705A (en) * | 1957-03-06 | 1959-10-28 | Center Column Tower Crane with Unlimited Rotation Boom | |
DE1159607B (en) | 1958-12-23 | 1963-12-19 | Hans Liebherr Fa | Tower crane |
DE1172821B (en) * | 1960-11-19 | 1964-06-25 | Roberto Calcagno | Tower crane with a column that can be assembled from several components |
CH386075A (en) * | 1960-11-19 | 1964-12-31 | Calcagno Roberto | Tower crane |
CH400489A (en) * | 1961-04-13 | 1965-10-15 | Wullschleger Gertrud | Tower crane |
FR1306447A (en) * | 1961-11-17 | 1962-10-13 | Lifting device with assemblable elements or panels, more particularly a tower crane fitted with a lateral sliding member and auxiliary lifting means | |
FR1470368A (en) * | 1965-12-30 | 1967-02-24 | Richier Sa | Improvement in the translation of counterweight carriages on tower cranes |
DE1756481A1 (en) * | 1968-05-28 | 1970-04-02 | Kaiser Kg Maschf Otto | Method for topping up a mobile tower crane |
JPS4836509B1 (en) * | 1970-11-20 | 1973-11-05 | ||
JPS4836509A (en) * | 1971-09-13 | 1973-05-30 | ||
SU423740A1 (en) * | 1972-07-07 | 1974-04-15 | А. Г. Юрченко, А. М. Павловский, В. Л. Сакович , В. С. Фурто | THE LIFE AND THE TOWER CRANE |
BE848626A (en) | 1976-11-23 | 1977-03-16 | TOWER CRANE. | |
DE9010221U1 (en) | 1990-07-05 | 1990-11-08 | Geitner, Siegfried, 3110 Uelzen | Movable small crane for lifting small loads |
DE4135961A1 (en) | 1991-06-04 | 1992-12-10 | Liebherr Werk Biberach Gmbh | CLIMBING DEVICE FOR CLIMBING LARGE CLIMBING WEIGHTS IN TURN TURNING CRANES, WORKING PLATFORMS OR THE LIKE. |
CN2191854Y (en) * | 1993-01-01 | 1995-03-15 | 曾绍强 | Attached lift headframe tower crane |
CN2224191Y (en) * | 1995-02-13 | 1996-04-10 | 朱永奋 | Self-lifting tower crane capable of carrying person |
ES2206014B1 (en) | 2002-03-26 | 2005-07-16 | Manuel Torres Martinez | CRANE FOR ASSEMBLY OF AIRBRUSHERS AND ASSEMBLY PROCESS. |
JP4874025B2 (en) * | 2006-07-28 | 2012-02-08 | Ihi運搬機械株式会社 | Climbing crane |
DE102015016279A1 (en) | 2014-12-19 | 2016-06-23 | Liebherr-Werk Ehingen Gmbh | Tower Crane |
CN104925672B (en) * | 2015-06-19 | 2017-03-01 | 王文让 | The all-hydraulic self-crawling type two-sided tower crane of suspension |
-
2016
- 2016-09-15 DE DE102016011179.8A patent/DE102016011179A1/en active Pending
-
2017
- 2017-09-12 EP EP17765080.1A patent/EP3507232B1/en active Active
- 2017-09-12 US US16/333,497 patent/US10934140B2/en active Active
- 2017-09-12 WO PCT/EP2017/001077 patent/WO2018050278A1/en unknown
- 2017-09-12 CN CN201780056751.7A patent/CN109803915B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN109803915B (en) | 2021-08-17 |
DE102016011179A1 (en) | 2018-03-15 |
US20190256330A1 (en) | 2019-08-22 |
WO2018050278A1 (en) | 2018-03-22 |
CN109803915A (en) | 2019-05-24 |
EP3507232B1 (en) | 2024-02-28 |
US10934140B2 (en) | 2021-03-02 |
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