WO2016199721A1 - 伸縮ブームの取付構造 - Google Patents

伸縮ブームの取付構造 Download PDF

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Publication number
WO2016199721A1
WO2016199721A1 PCT/JP2016/066762 JP2016066762W WO2016199721A1 WO 2016199721 A1 WO2016199721 A1 WO 2016199721A1 JP 2016066762 W JP2016066762 W JP 2016066762W WO 2016199721 A1 WO2016199721 A1 WO 2016199721A1
Authority
WO
WIPO (PCT)
Prior art keywords
boom
base
bracket
width
telescopic boom
Prior art date
Application number
PCT/JP2016/066762
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
正裕 石井
征男 樫原
Original Assignee
株式会社タダノ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=57503384&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2016199721(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 株式会社タダノ filed Critical 株式会社タダノ
Priority to KR1020177032309A priority Critical patent/KR101942213B1/ko
Priority to CN201680029045.9A priority patent/CN107735351B/zh
Publication of WO2016199721A1 publication Critical patent/WO2016199721A1/ja

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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
    • B66C23/36—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 mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/42—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 mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
    • 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

Definitions

  • the present invention relates to a mounting structure for a telescopic boom that attaches the telescopic boom to a swing post so that it can be raised and lowered.
  • a telescopic boom mounting structure in which a telescopic boom that can be telescopically mounted by nesting a plurality of intermediate booms nested inside a base boom on a pivot post that is pivotably provided on the base of a crane is known. (See Patent Document 1).
  • the telescopic boom mounting structure is provided with a pair of holding plate portions opposed to the turning post, and the rear portion of the base boom of the telescopic boom is mounted between the holding plate portions via a shaft member, and the base boom is mounted by the shaft member.
  • the swing post can be raised and lowered.
  • the gap between the side wall portion of the base boom and the side wall portion of the intermediate boom is set narrow, and the base boom or the like is distorted in the side wall portion due to heat of welding or the like.
  • the width of the base boom can be increased.
  • the width of the base boom is set according to the width between the holding plates of the swivel post, try to increase the width of the base boom. Then, it was necessary to change to a swivel post having a larger width between the pair of holding plate portions of the swivel post.
  • An object of the present invention is to provide a telescopic boom mounting structure capable of preventing interference between a base boom and an intermediate boom without changing an existing turning post.
  • the present invention is a telescopic boom mounting structure in which a rear portion of a base boom of a telescopic boom of a work machine is held by a bracket, and the base boom is mounted to the swing post by the bracket so as to be raised and lowered.
  • the bracket has a pair of contact plate portions joined to both side wall portions of the rear portion of the base boom, Each of the contact plate portions has a base piece that can be held up and down between a pair of opposing holding portions of the swivel post,
  • the width of the bracket other than the base piece is set larger than the width of the bracket of the base piece.
  • the width of the base boom can be increased without changing the turning post, and interference between the base boom and the intermediate boom can be prevented.
  • FIG. 1 shows a truck crane (crane) 10 as a working machine to which a telescopic boom mounting structure is applied.
  • the truck crane 10 includes a main frame 14 that extends in the front-rear direction and has a front wheel 11 and first and second rear wheels 12 and 13, a turning post 20 that is turnable on the main frame 14,
  • the telescopic boom 100 provided at the upper part of the swing post 20, the hoisting cylinder 15 for lifting the telescopic boom 100, and the position of the swing post (position with respect to the front-rear direction) on both sides of the main frame 14.
  • a pair of provided outrigger devices 30 (only one of them is shown), a cabin 16 provided on the main frame 14 on the front side of the turning post 20, a loading platform 17 provided on the rear side of the turning post 20, and the like are provided. .
  • the swivel post 20 has a pair of opposing holding plate portions (holding portions) 21 (only one of them is shown) that holds the telescopic boom 100 so that it can be raised and lowered.
  • a winch and a speed reducer (not shown) are arranged in the turning post 20, and a wire (not shown) for suspending a suspended load is wound up or fed out.
  • the telescopic boom 100 includes a base boom 110, intermediate booms 111 and 112, and a tip boom 113, and is configured by being nested in the base boom 110 from the outside to the inside in this order.
  • the telescopic boom 100 is expanded and contracted by an expansion cylinder (not shown).
  • FIGS. 2 and 2A show the mounting structure of the telescopic boom 100 for mounting the telescopic boom 100 to the turning post.
  • a bracket 120 is attached to the rear portion of the base boom 110, and the base boom 110 is attached to the swing post 20 via the bracket 120 so as to be raised and lowered.
  • the bracket 120 includes a pair of contact plate portions 130 and 130 that are in contact with both side wall portions 110 ⁇ / b> A and 110 ⁇ / b> B of the base boom 110, and a rear upper portion of the pair of contact plate portions 130 and 130. And an end plate 140 which is disposed between the rear ends and connects the contact plate portions 130.
  • each abutment plate portion 130 is provided at a welding region portion 131 including a welding region welded to the side wall portion 110 ⁇ / b> A of the base boom 110 and a rear portion of the welding region portion 131 and the base boom 110. And a base piece 132 protruding rearward from the rear end position.
  • the boundary between the base piece 132 and the welding region 131 is a stepped portion 133.
  • the width W2 between the base piece 132,132 of the bracket 120 is set smaller than the width W1 between the welding area
  • the welding area 131 of the bracket 120 has a V-shaped protruding piece 131A protruding downward from the lower surface 110C of the base boom 110.
  • a shaft hole 129 is formed at the lowermost portion of the protruding piece 131A, and reinforcing flanges 127 and 128 are formed along ridgelines (edges) 122A and 122B of the protruding piece 131A.
  • an opening 126 for ensuring welding strength is formed at the center of the welding region 131.
  • the base piece 132 is fixed with a shaft hole 124 for mounting the telescopic boom 100 between the holding plate portions 21 of the swivel post 20, and one end of the telescopic cylinder of the telescopic boom 100.
  • a shaft hole 125 for mounting a shaft member (not shown) is formed.
  • the base piece 132, 132 of the bracket 120 is inserted between the holding plate parts 21, 21 of the turning post 20, and the turning post is inserted into the shaft holes 124, 124 of the base piece 132, 132.
  • the bracket 120 is attached to the pivot post 20 by inserting the 20 shaft members 150.
  • the shaft hole 129 of one welding region portion 131 of the bracket 120 and the shaft of a protruding piece (not shown) of the other welding region portion 131 are used.
  • a shaft member (not shown) is attached to the hole. Accordingly, the telescopic boom 100 is raised and lowered around the shaft member 150 by the expansion and contraction operation of the hoisting cylinder 15.
  • the width W1 between the contact plate portions 130, 130 other than the base piece 132 is set to be larger than the width W2 between the base pieces 132, 132.
  • the width in the lateral direction can be increased, and a gap between the side wall portions 110A and 110B of the base boom 110 and the side wall portion (not shown) of the intermediate boom 111 (see FIG. 1) can be increased.
  • strain by heat, such as welding has generate
  • the width W2 can be the same as the conventional width, the existing one can be used without changing the swivel post 20, and the existing shaft member 150 for undulation can be used.
  • the lateral width of the base boom 110 can be increased, the lateral rigidity of the telescopic boom 100 can be increased.
  • a multi-stage boom can be easily configured.
  • FIG. 3 shows a bracket 200 of the second embodiment.
  • the bracket 200 is disposed between a pair of contact plate portions 230 and 230 joined to both side wall portions 110A and 110B of the base boom 110, and between the rear upper portion and the rear end of the pair of contact plate portions 230 and 230. And an end plate 240 for connecting the contact plate portions 230.
  • Each abutment plate portion 230 is provided at a rear portion of the welded portion (abutting portion) 231 welded to the side wall portion 110 ⁇ / b> A of the base boom 110 and the two welded region portions 231 and behind the rear end position of the base boom 110. And a base piece 232 protruding toward the bottom.
  • the width W ⁇ b> 3 between the contact plate portions 230 and 230 of the boundary portion 233 gradually increases as going from the base piece 232 to the welding region portion 231.
  • the bracket 200 is configured such that the stepped portion 133 of the bracket 120 shown in FIG. 2 is eliminated. By eliminating this stepped portion 133, stress concentration generated in the stepped portion 133 can be eliminated.
  • the width W1 between the welded region portions 231 and 231 of the bracket 200 is set larger than the width W2 between the base pieces 232 and 232, as in the first embodiment.
  • the width W1 between the welded regions 131, 131, 231, 231 of the brackets 120, 200 is set larger than the width W2 between the base pieces 132, 132, 232, 232. If the width W2 between the base pieces 132, 132, 232, 232 is set to be narrower than the width W1 between the welding region portions 131, 131, 231, 231, the turning post 20 while maintaining the lateral rigidity of the telescopic boom 100 is maintained. Can be reduced in size and weight.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
PCT/JP2016/066762 2015-06-11 2016-06-06 伸縮ブームの取付構造 WO2016199721A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020177032309A KR101942213B1 (ko) 2015-06-11 2016-06-06 신축 붐의 장착 구조
CN201680029045.9A CN107735351B (zh) 2015-06-11 2016-06-06 伸缩起重臂的安装构造

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-118617 2015-06-11
JP2015118617A JP6531505B2 (ja) 2015-06-11 2015-06-11 伸縮ブームの取付構造

Publications (1)

Publication Number Publication Date
WO2016199721A1 true WO2016199721A1 (ja) 2016-12-15

Family

ID=57503384

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/066762 WO2016199721A1 (ja) 2015-06-11 2016-06-06 伸縮ブームの取付構造

Country Status (4)

Country Link
JP (1) JP6531505B2 (zh)
KR (1) KR101942213B1 (zh)
CN (1) CN107735351B (zh)
WO (1) WO2016199721A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7463865B2 (ja) 2020-06-08 2024-04-09 株式会社タダノ ブーム

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158189A (en) * 1991-12-12 1992-10-27 Watson Brothers Industries, Inc. Boom support system
US5515654A (en) * 1994-11-02 1996-05-14 Anderson; Edward E. Telescopic boom apparatus
JPH09194183A (ja) * 1996-01-12 1997-07-29 Hitachi Constr Mach Co Ltd 型鋼の架設解体機
JPH09249397A (ja) * 1996-03-15 1997-09-22 Aichi Corp 伸縮ブーム
JP2008024419A (ja) * 2006-07-20 2008-02-07 Tadano Ltd ブーム付き作業機における伸縮ブーム

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001097673A (ja) 1999-09-28 2001-04-10 Tadano Ltd クレーン付きトラックの荷台後部域への重量物の積み下し方法。
JP4943645B2 (ja) 2004-11-12 2012-05-30 株式会社タダノ 伸縮ブームのブーム長さ検出器
WO2012026233A1 (ja) * 2010-08-26 2012-03-01 日立建機株式会社 建設機械
JP5725777B2 (ja) * 2010-09-17 2015-05-27 株式会社タダノ コードリールの取付構造
RU2547492C2 (ru) * 2010-12-17 2015-04-10 Тадано Фаун Гмбх Передвижной телескопический подъемный кран
EP2711467B1 (en) * 2011-05-19 2018-01-03 Hitachi Construction Machinery Co., Ltd. Arm for construction machinery
JP2013108247A (ja) * 2011-11-18 2013-06-06 Hitachi Constr Mach Co Ltd 作業機の上下連結ピンの着脱装置、および作業機の組立方法と分解方法
EP2712836B1 (en) * 2012-09-28 2015-06-03 Mesera Cranes Finland Oy A telescopic crane and a telescopic boom arrangement of a telescopic crane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158189A (en) * 1991-12-12 1992-10-27 Watson Brothers Industries, Inc. Boom support system
US5515654A (en) * 1994-11-02 1996-05-14 Anderson; Edward E. Telescopic boom apparatus
JPH09194183A (ja) * 1996-01-12 1997-07-29 Hitachi Constr Mach Co Ltd 型鋼の架設解体機
JPH09249397A (ja) * 1996-03-15 1997-09-22 Aichi Corp 伸縮ブーム
JP2008024419A (ja) * 2006-07-20 2008-02-07 Tadano Ltd ブーム付き作業機における伸縮ブーム

Also Published As

Publication number Publication date
CN107735351A (zh) 2018-02-23
KR101942213B1 (ko) 2019-01-24
JP6531505B2 (ja) 2019-06-19
CN107735351B (zh) 2019-12-31
KR20170134714A (ko) 2017-12-06
JP2017001840A (ja) 2017-01-05

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