EP2041018B1 - Utilisation d'une douille lors de l'assemblage des elements du pylone d'une grue a pylone - Google Patents

Utilisation d'une douille lors de l'assemblage des elements du pylone d'une grue a pylone Download PDF

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Publication number
EP2041018B1
EP2041018B1 EP07786089A EP07786089A EP2041018B1 EP 2041018 B1 EP2041018 B1 EP 2041018B1 EP 07786089 A EP07786089 A EP 07786089A EP 07786089 A EP07786089 A EP 07786089A EP 2041018 B1 EP2041018 B1 EP 2041018B1
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EP
European Patent Office
Prior art keywords
tower
elements
bushing
openings
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.)
Active
Application number
EP07786089A
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German (de)
English (en)
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EP2041018A1 (fr
Inventor
Reinald Geissler
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.)
Wolffkran AG
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Wolffkran AG
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Publication date
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Publication of EP2041018A1 publication Critical patent/EP2041018A1/fr
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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
    • B66C23/18—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
    • B66C23/286—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 with locking devices

Definitions

  • the invention relates to the use of a socket in the connection of tower elements of a tower crane.
  • Tower cranes comprise a crane base from which a tower extends upwards. At an upper portion of the tower usually a boom and possibly a counter-jib is attached. Tower cranes are for example from the patent DE 35 10 116 C2 known.
  • the tower of a tower crane usually comprises several tower elements (also referred to as "tower shots").
  • the tower elements can be 4.5m long and 2.5t heavy, for example.
  • the vertically extending corner posts of the tower elements are positively placed on each other and releasably connected by bolts. This bolt connection is made possible by the fact that the ends of the corner posts of the tower elements each have pins or sleeves for pin receiving, which can be inserted into one another during assembly.
  • the pins and the sleeves for receiving the pins can be provided with mutually aligned, continuous and substantially cylindrical, diameter-equal openings, in each of which a substantially cylindrical bolt is fitted.
  • a tower element may have at its one end only sleeves and at the other end only pins.
  • the openings (bores) in the spigots and pods of the tower elements may become larger (beat) over time due to the strong forces acting on them and the constantly changing stress, until finally the permissible tolerance limit is reached.
  • the invention has for its object to connect tower elements with different sized holes and thereby avoid the disadvantages of the known solutions.
  • Claim 3 relates to a tower crane, in which a socket is used according to claim 1. Further embodiments are the subject matter of the subclaims or described below.
  • the bushing preferably has as inner diameter (within the tolerance limits) the diameter of the openings in the sleeves of one tower element (with the smaller holes) and as outer diameter the diameter of the openings in the pins of the other tower element (with the larger openings).
  • the bushing is preferably made of a high quality material, most advantageously of the same material as the bolt used, preferably high quality steel such as alloy 42 CrMo 4.
  • the sleeve preferably has at one end to an outwardly projecting collar against which Moving too far into the hole insures. The bush is pushed into the pin with the larger opening.
  • the socket can be removed again after years, it can be knocked out by means of a simple tool.
  • the pegs of the tower element are always up while the pods are down below and are pushed over the pegs of the lower tower element.
  • the invention also provides a method of repairing a worn opening in the journal of a tower element of a tower crane, in which the opening in the journal is drilled so as to obtain a cylindrical shape of increased diameter, and then a bush in the Opening is pushed, whose inner diameter corresponds to the original inner diameter of the opening.
  • the solution according to the invention has the advantage that welding is completely eliminated.
  • FIG. 1 shows the sleeve 1 of a corner post of a tower element, which is pushed over the pin 2 of another tower element.
  • the cylindrical opening 3 in the pin 2 has a larger diameter than the openings 4a, 4b in the sleeve 1.
  • a cylindrical sleeve 5 is inserted, whose outer diameter corresponds to the diameter of the opening 3 of the pin 2 and whose Inner diameter of the openings 4a, 4b of the sleeve 1 corresponds.
  • the bush 5 has on the side of the opening 4 a circumferential collar 6.

Claims (4)

  1. Utilisation d'une douille cylindrique pour réduire les ouvertures dans les organes d'emboîtement mâles d'un élément de pylône d'une grue de chantier à pylône, caractérisée en ce que le diamètre intérieur de la douille correspond au diamètre des ouvertures dans les organes d'emboîtement femelles d'un autre élément de pylône de la grue de chantier à pylône.
  2. Utilisation d'une douille selon la revendication 1, caractérisée en ce que la douille est réalisée dans le même matériau que l'organe d'emboîtement mâle.
  3. Grue de chantier à pylône comprenant au moins deux éléments de pylône qui sont assemblés entre eux d'une manière telle que des poteaux d'angle verticaux des éléments de grue de chantier à pylône présentent chaque fois des organes d'emboîtement mâles et des organes d'emboîtement femelles qui sont emboîtés les uns dans les autres et sont liés de manière démontable par des boulons d'assemblage insérés dans des ouvertures cylindriques prévues dans les organes d'emboîtement mâles et les organes d'emboîtement femelles, une douille qui réduit le diamètre de l'ouverture dans l'organe d'emboîtement mâle étant insérée dans au moins un organe d'emboîtement mâle, caractérisée en ce que le diamètre intérieur de la douille correspond au diamètre des ouvertures d'un autre élément de pylône de la grue de chantier à pylône.
  4. Grue de chantier à pylône selon la revendication 3, caractérisée en ce que la douille est réalisée dans le même matériau que l'organe d'emboîtement mâle.
EP07786089A 2006-07-18 2007-07-16 Utilisation d'une douille lors de l'assemblage des elements du pylone d'une grue a pylone Active EP2041018B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006033594A DE102006033594B3 (de) 2006-07-18 2006-07-18 Verwendung einer Buchse bei der Verbindung von Turmelementen eines Turmkrans
PCT/EP2007/006287 WO2008009399A1 (fr) 2006-07-18 2007-07-16 Utilisation d'une douille lors de l'assemblage des éléments du pylône d'une grue à pylône

Publications (2)

Publication Number Publication Date
EP2041018A1 EP2041018A1 (fr) 2009-04-01
EP2041018B1 true EP2041018B1 (fr) 2010-08-04

Family

ID=38556324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07786089A Active EP2041018B1 (fr) 2006-07-18 2007-07-16 Utilisation d'une douille lors de l'assemblage des elements du pylone d'une grue a pylone

Country Status (4)

Country Link
EP (1) EP2041018B1 (fr)
AT (1) ATE476392T1 (fr)
DE (2) DE102006033594B3 (fr)
WO (1) WO2008009399A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114408770A (zh) * 2022-01-13 2022-04-29 中联重科建筑起重机械有限责任公司 标准节装置及塔式起重机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169226A (en) * 1966-02-01 1969-10-29 Richier Sa Improvements in or relating to Towers or Beams
DE2351177A1 (de) * 1973-10-11 1975-04-24 Liebherr Hans Dr Ing E H Turmschussverbindung
SU887440A1 (ru) * 1979-11-02 1981-12-07 Механический Завод Управления Капитального Ремонта Ленгорисполкома Устройство дл стыковки пространственных секций башенного крана
FR2680813B1 (fr) * 1991-08-30 1995-10-20 Potain Sa Dispositif d'assemblage demontable pour elements de charpente metallique.

Also Published As

Publication number Publication date
ATE476392T1 (de) 2010-08-15
WO2008009399A1 (fr) 2008-01-24
EP2041018A1 (fr) 2009-04-01
DE102006033594B3 (de) 2008-01-24
DE502007004661D1 (de) 2010-09-16

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