WO2010091677A1 - Zugstange für die abspannung eines kranauslegers - Google Patents
Zugstange für die abspannung eines kranauslegers Download PDFInfo
- Publication number
- WO2010091677A1 WO2010091677A1 PCT/DE2010/000179 DE2010000179W WO2010091677A1 WO 2010091677 A1 WO2010091677 A1 WO 2010091677A1 DE 2010000179 W DE2010000179 W DE 2010000179W WO 2010091677 A1 WO2010091677 A1 WO 2010091677A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tubular body
- connection
- coupling element
- wall thickening
- coupling
- Prior art date
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
-
- 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
- B66C23/82—Luffing gear
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/55—Member ends joined by inserted section
- Y10T403/553—Laterally inserted section
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/70—Interfitted members
- Y10T403/7075—Interfitted members including discrete retainer
- Y10T403/7077—Interfitted members including discrete retainer for telescoping members
- Y10T403/7079—Transverse pin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/70—Interfitted members
- Y10T403/7075—Interfitted members including discrete retainer
- Y10T403/7077—Interfitted members including discrete retainer for telescoping members
- Y10T403/7079—Transverse pin
- Y10T403/7084—Bolt, rivet, or screw
Definitions
- the invention relates to a pull rod for the bracing of a crane boom according to the preamble of claim 1.
- Cranes with crane jibs are z. B. from DE 20 2008 006 167 U 1 known.
- the crane jibs are here with rope-shaped or from single, articulated interconnected rod-shaped elements braced.
- a disadvantage of welded tie rods is that the welded joints between the pipe and the coupling element have an increased notch sensitivity and are therefore subject to increased fatigue crack susceptibility in the weld seam area. The fatigue strength of such tie rods is thus significantly limited, leading to premature increased risk of failure.
- the object of the invention is to provide a pull rod for bracing a crane jib, which does not have the disadvantages described and is inexpensive to produce.
- the tubular body and the coupling element are detachably connectable with waiving a cohesive connection, wherein the region of the compound is so dimensioned and kerbarm designed that mathematically the full capacity of the tube cross-section can be exploited in terms of maximum fatigue strength.
- connection is a screw connection.
- the tubular body has in the connection area a threaded wall thickening, which is dimensioned such that a to be considered for the calculation of the load capacity of the tubular body cross-sectional weakening of the nominal wall thickness of the tube is avoided by the thread in the connecting region of the tubular body and coupling element and the transition from the Wall thickening to the tubular body kerbarm is executed.
- the articulated coupling of the tie rods with each other and the connection of the tubular body with the coupling element on a common form-fitting connection as a bolt connection
- the ends of the tubular body are provided with an outwardly facing wall thickening, abut on the shoulder-shaped transitional areas of the tubular body for wall thickening attachable coupling elements for a tensile force transfer, while the coupling element of one end as the father element and the other end designed as a nut member, said the father element of a pull rod with the nut element of the other pull rod are inserted into one another and connectable in the overlapping area by means of a bolt.
- the advantage of the non-positive or positive connection of tubular body and coupling element according to the invention is that on the one hand by the waiver of a cohesive connection by welding consequent material inhomogeneities such. As metallurgical notches in the compound, which adversely affect the fatigue strength, can be avoided.
- both the non-positive threaded connection of tubular body and coupling elements and the positive connection via attachable coupling elements are advantageously carried out detachable, so that a wear-related repair or replacement of the coupling elements are very simple and inexpensive possible.
- the wall thickening is produced in a first advantageous variant of the method by upsetting in particular by hot upsetting of the pipe end.
- the upsetting process is advantageously carried out so that the transitions generated during compression from the pipe to the coupling piece are kerbarm as possible. For this purpose, they have the largest possible radius. If necessary, the transitions can also be created by mechanical processing.
- transitions with a flowing and notch-free transition to the non-thickened region of the tube advantageously ensure in the transition zone a low stress concentration factor, which has a favorable effect on the fatigue strength of the tubular body.
- FIG. 1 is a schematic representation of a screw according to the invention of
- Figure 2 is a schematic representation of a second embodiment of the invention with a common positive connection between the tubular body and coupling element and the tie rods with each other.
- Figure 1 shows a schematic representation of a screw connection according to the invention of tubular body and coupling element.
- the drawbar 1 consists of screwed with a tubular body 2 coupling elements 6 and 7, the ends of which for connecting the tie rods with each other are inserted into one another and articulated with a bolt 8.
- a circlip not shown here, ensures that the bolt 8 connecting the tie rods can not come loose under service stress.
- the coupling elements 6 and 7 To mount the coupling elements 6 and 7, these must be aligned and fixed after screwing on the tubular body 2, that the holes of the coupling elements 6 and 7 for insertion of the bolt 8 are exactly aligned. In this position, the coupling elements 6 and 7 are then fixed on the tubular body 2, for example by a welding point or by a feather key.
- the tubular body 2 has at the ends in each case a wall thickening 3, which is provided with an external thread 5, which corresponds with a mounted in the coupling element 6 and 7 internal thread 5 '.
- the transitions 4 of the wall thickening 3 to the tubular body 2 are inventively ropeless and kerbarm executed to achieve the highest possible fatigue strength of the tie rod 1 during operation.
- the wall thickening 3 of the tubular body 2 is dimensioned so that a cross-sectional weakening of the nominal wall thickness of the pipe to be taken into account for the calculation of the load bearing capacity of the tubular body 2 is reliably avoided by the thread in the connecting region of tubular body 2 and coupling element 6, 7.
- Figure 2 shows the schematic representation of a second embodiment of the invention with a common positive connection between the tubular body and coupling element and the tie rods with each other.
- the ends of the tubular body 2 ' are provided with outwardly facing wall thickenings 3', at the shoulder-shaped transitional areas 11 from the tubular body 2 'to the wall thickening 3' thereon clip-on coupling elements 9, 10 for a tensile force transfer fit.
- the coupling elements 9, 10 are according to the invention symmetrical to the axis of the tubular body 2 'clamshell split executed to allow mounting on the pipe ends.
- the coupling element 9 of one end is designed as Vatereiement and the coupling element 10 of the other end of the tie rod 1' as a nut member inserted into one another and provided with a through hole for insertion of the bolt 12.
- a circlip ensures that the bolt 12 connecting the tie rods can not come loose under service stress.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Jib Cranes (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080007318.2A CN102317195B (zh) | 2009-02-11 | 2010-02-05 | 用于系索加固起重机悬臂的拉杆 |
KR1020117019323A KR101721890B1 (ko) | 2009-02-11 | 2010-02-05 | 크레인 지브를 지지하기 위한 견인 로드 |
US13/148,787 US8783994B2 (en) | 2009-02-11 | 2010-02-05 | Traction rod for bracing a crane jib |
JP2011549432A JP5579751B2 (ja) | 2009-02-11 | 2010-02-05 | クレーンブームを支持するための引張ロッド |
EP10724248A EP2396266B1 (de) | 2009-02-11 | 2010-02-05 | Zugstange für die abspannung eines kranauslegers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009008808.3 | 2009-02-11 | ||
DE102009008808A DE102009008808A1 (de) | 2009-02-11 | 2009-02-11 | Zugstange für die Abspannung eines Kranauslegers |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010091677A1 true WO2010091677A1 (de) | 2010-08-19 |
Family
ID=42320748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2010/000179 WO2010091677A1 (de) | 2009-02-11 | 2010-02-05 | Zugstange für die abspannung eines kranauslegers |
Country Status (8)
Country | Link |
---|---|
US (1) | US8783994B2 (de) |
EP (1) | EP2396266B1 (de) |
JP (1) | JP5579751B2 (de) |
KR (1) | KR101721890B1 (de) |
CN (1) | CN102317195B (de) |
AR (1) | AR075388A1 (de) |
DE (1) | DE102009008808A1 (de) |
WO (1) | WO2010091677A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009039710B4 (de) | 2009-08-28 | 2014-03-20 | V&M Deutschland Gmbh | Verfahren zur Herstellung warmgewalzter Hohlprofile mit kleinen Kantenradien, Hohlprofil und Verwendung des Hohlprofils |
DE202010017053U1 (de) | 2010-12-24 | 2012-04-03 | Geo. Gleistein & Sohn Gmbh | Abspannelement und Zwischenprodukt aus zahlreichen geflochtenen, geschlagenen (gedrehten) oder weitgehend parallel angeordneten Kunstfasern |
DE102014216674A1 (de) * | 2014-08-21 | 2016-02-25 | Schaeffler Technologies AG & Co. KG | Rohrförmiges Bauteil und Verfahren zu seiner Herstellung |
Citations (4)
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---|---|---|---|---|
JPH10194677A (ja) * | 1997-01-14 | 1998-07-28 | Tadano Ltd | ラフィングジブ付きブームクレーンにおけるラフィングジブ支持装置 |
US6520709B1 (en) * | 1999-04-30 | 2003-02-18 | Frank's Casing Crew And Rental Tools, Inc. | Variable length/capacity elevator links |
DE20219281U1 (de) * | 2002-12-12 | 2004-04-15 | Liebherr-Werk Nenzing Ges.M.B.H., Nenzing | Kranausleger-Abspannelement |
DE202008006167U1 (de) * | 2008-05-06 | 2008-07-17 | Terex-Demag Gmbh | Seitlich abgespannter Gittermast |
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DE3409916A1 (de) * | 1984-03-17 | 1985-09-26 | Rolf D. 3167 Burgdorf Jachmann | Knotenpunktverbindung fuer loesbar miteinander verbindbare zylinderfoermige staebe |
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JPS62180189A (ja) * | 1986-02-03 | 1987-08-07 | 日本ハイブリツドテクノロジ−ズ株式会社 | セラミツクスパイプ状部品の高温継手 |
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DE202004016321U1 (de) * | 2004-10-20 | 2005-03-10 | Trigum-Engineering Gmbh | Zug-Druck-Stange |
JP2006199484A (ja) * | 2005-01-24 | 2006-08-03 | Kobelco Cranes Co Ltd | クレーンのストラット |
DE202005008121U1 (de) * | 2005-05-24 | 2006-10-05 | Liebherr-Werk Biberach Gmbh | Rohrförmiges Element mit Anschlag |
KR100754501B1 (ko) * | 2007-01-03 | 2007-09-03 | 우양호 | 탈·부착이 용이한 배관의 이음구 |
JP7062485B2 (ja) * | 2018-03-27 | 2022-05-06 | キヤノン株式会社 | トナー |
-
2009
- 2009-02-11 DE DE102009008808A patent/DE102009008808A1/de not_active Ceased
-
2010
- 2010-02-05 WO PCT/DE2010/000179 patent/WO2010091677A1/de active Application Filing
- 2010-02-05 EP EP10724248A patent/EP2396266B1/de not_active Not-in-force
- 2010-02-05 CN CN201080007318.2A patent/CN102317195B/zh not_active Expired - Fee Related
- 2010-02-05 JP JP2011549432A patent/JP5579751B2/ja not_active Expired - Fee Related
- 2010-02-05 KR KR1020117019323A patent/KR101721890B1/ko active IP Right Grant
- 2010-02-05 US US13/148,787 patent/US8783994B2/en active Active
- 2010-02-10 AR ARP100100356A patent/AR075388A1/es active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10194677A (ja) * | 1997-01-14 | 1998-07-28 | Tadano Ltd | ラフィングジブ付きブームクレーンにおけるラフィングジブ支持装置 |
US6520709B1 (en) * | 1999-04-30 | 2003-02-18 | Frank's Casing Crew And Rental Tools, Inc. | Variable length/capacity elevator links |
DE20219281U1 (de) * | 2002-12-12 | 2004-04-15 | Liebherr-Werk Nenzing Ges.M.B.H., Nenzing | Kranausleger-Abspannelement |
DE202008006167U1 (de) * | 2008-05-06 | 2008-07-17 | Terex-Demag Gmbh | Seitlich abgespannter Gittermast |
Also Published As
Publication number | Publication date |
---|---|
CN102317195B (zh) | 2013-07-31 |
EP2396266B1 (de) | 2013-04-03 |
KR20110118794A (ko) | 2011-11-01 |
US8783994B2 (en) | 2014-07-22 |
JP2012517392A (ja) | 2012-08-02 |
JP5579751B2 (ja) | 2014-08-27 |
CN102317195A (zh) | 2012-01-11 |
DE102009008808A1 (de) | 2010-09-09 |
EP2396266A1 (de) | 2011-12-21 |
AR075388A1 (es) | 2011-03-30 |
KR101721890B1 (ko) | 2017-03-31 |
US20120067841A1 (en) | 2012-03-22 |
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