WO2016199722A1 - 伸縮ブームの取付構造 - Google Patents
伸縮ブームの取付構造 Download PDFInfo
- Publication number
- WO2016199722A1 WO2016199722A1 PCT/JP2016/066763 JP2016066763W WO2016199722A1 WO 2016199722 A1 WO2016199722 A1 WO 2016199722A1 JP 2016066763 W JP2016066763 W JP 2016066763W WO 2016199722 A1 WO2016199722 A1 WO 2016199722A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- boom
- bracket
- telescopic boom
- base
- mounting structure
- Prior art date
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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 telescopic boom needs to increase the width of the base boom in order to increase the number of boom stages or increase the lateral rigidity.
- the width of the base boom is set according to the width between the holding plate portions of the swivel post, when the base boom is made wider, the swivel with the larger width between the pair of holding plate portions of the swivel post is made.
- An object of the present invention is to provide a boom structure in which an existing turning post, an existing shaft member, and the like can be used even if the width of the base boom is increased.
- 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 that are joined to both side wall portions of the rear portion of the base boom and are held between a pair of holding portions facing each other of the turning post,
- Each of the contact plate portions has a first shaft portion that is attached to the holding portion of the swivel post so as to be raised and lowered,
- a first predetermined region including a first shaft portion is set for each of the contact plate portions,
- the width of the bracket other than the first predetermined area is set larger than the width between the first predetermined areas.
- the present invention even if the width of the base boom is increased, it is not necessary to change the width between the holding plate portions of the turning post, so that the existing turning post and the existing shaft member for undulation can be used.
- 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,
- a telescopic boom 200 that can be raised and lowered on the upper part of the swivel post 20, a hoisting cylinder 15 that lifts the telescopic boom 200, and a position of the swivel 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 200 so as to be raised and lowered.
- the swivel post 20 is provided with a winch and a speed reducer (not shown) so that a wire (not shown) for suspending a suspended load is wound up or fed out.
- the telescopic boom 200 includes a base boom 210, intermediate booms 220 and 230, and a tip boom 240, and is configured to be nested in the base boom 210 from the outside to the inside in this order.
- the telescopic boom 200 is expanded and contracted by an expansion cylinder (not shown).
- FIGS. 2 and 2A show an attachment structure of the telescopic boom 200 for attaching the telescopic boom 200 to the turning post 20.
- a bracket 300 is attached to the rear portion of the base boom 210, and the base boom 210 is attached to the revolving post 20 via the bracket 300 so as to be able to rise and fall.
- the rear end 210A of the base boom 210 is inclined so as to protrude from the front side to the rear side of the base boom.
- the rear ends of the intermediate booms 220 and 230 and the tip boom 240 are similarly inclined.
- the bracket 300 includes a pair of contact plate portions 310 and 310 joined to both side wall portions 211 of the base boom 210 (see FIG. 2), and the pair of contact plate portions 310 and 310. It has the end plate 320 which is arrange
- each abutment plate portion 310 is provided in a welded region portion 311 welded to the side wall portion 211 of the base boom 210 and a rear portion of the welded region portion 311, and the base boom 210.
- a base piece 312 protruding rearward (leftward in FIG. 2) from the position of the rear end 210A and a V-shaped protruding piece 313 protruding downward from the position of the lower surface 210B of the base boom 210 are provided.
- the protruding piece 313 is formed in a substantially triangular shape having the bottom end 313A as the bottom end.
- the base piece 312 has a shaft member (not shown) that connects a shaft hole 314 ⁇ / b> A for mounting the telescopic boom 200 to the holding plate 21 of the swivel post 20 so as to be raised and lowered, and one end of the telescopic cylinder that expands and contracts the telescopic boom 200. ) Is provided.
- a hoisting shaft member 132 (see FIG. 1) provided between the holding plate portions 21 of the swivel post 20 is mounted in the shaft hole 314A of the shaft portion 314, whereby the bracket 300 and the telescopic boom are centered on the shaft member 132. 200 is going up and down.
- a predetermined region (first predetermined region) 315 including the shaft portion 314 is set in the base piece 312 of each contact plate portion 310.
- a boundary (front edge) 315K of the predetermined region 315 is a stepped portion, which is inclined from the rear side to the front side of the bracket 300, and the predetermined region 315 has a triangular shape.
- the width W1 between the predetermined area 315 of the one abutting plate portion 310 of the bracket 300 and the predetermined area 315 of the other abutting plate portion 310 is a portion other than the predetermined area 315. It is set narrower than the width W2. That is, the width W2 of the bracket 300 other than the predetermined region 315 is set larger than the width W1 of the bracket 300 in the predetermined region 315.
- the protruding piece 313 is provided with a shaft portion (second shaft portion) 316 having a shaft hole 316A.
- a shaft member (not shown) is provided in the shaft holes 316A and 316A of the pair of protruding pieces 313 and 313 facing each other. ) And the shaft member connects one end of the hoisting cylinder 15 (see FIG. 1) to the bracket 300.
- a reinforcing flange 310F1 is formed along the lower edge portion from the skirt portion 313A of the protruding piece 313 of the contact plate portion 310 to the tip portion 311A of the welding region portion 311, and from the vicinity of the skirt portion 313A of the protruding piece 313.
- a reinforcing flange 310F2 is formed over the base piece 312.
- an opening 311K for ensuring welding strength is formed in the welding region 311. The opening 311K is omitted in FIG.
- the welded region portion 311 of the bracket 300 is welded to both side wall portions 211 and 211 of the rear portion of the base boom 210 of the telescopic boom 200, and the upper plate portion 321 of the bracket 300 is welded to the upper wall portion 210C of the base boom 210, As shown in FIG. 2, the bracket 300 is attached to the rear part of the base boom 210.
- the predetermined regions 315 and 315 of the pair of base pieces 312 and 312 of the bracket 300 are inserted between the holding plate portions 21 and 21 of the turning post 20, and the shafts of the predetermined regions 315 and 315 are inserted.
- the bracket 300 is attached to the turning post 20 by inserting the shaft member 132 of the turning post 20 into the holes 314A and 314A.
- one end of the hoisting cylinder is connected to the bracket 300 by a shaft member inserted into the shaft hole 316A.
- the telescopic boom 200 is raised and lowered around the shaft member 132 by the expansion and contraction operation of the hoisting cylinder 15.
- the width W1 By the way, by setting the width W1 to be the same as the width between the holding plate portions 21 of the conventional swivel post 20, the existing swivel post 20 and the existing shaft member 132 for undulation can be used. Furthermore, since the lateral width of the base boom 210 can be increased, the lateral rigidity of the telescopic boom 200 can be increased. Moreover, since the width
- the width W2 other than the predetermined region 315 is set larger than the width W1 between the predetermined regions 315 and 315, so that the lateral width of the base boom 210 can be increased.
- the gap between the side wall portions 211 and 211 of the base boom 210 and the side wall portion (not shown) of the intermediate boom 220 can be widened. For this reason, even if distortion due to heat such as welding occurs in the side wall portions of the base boom 210 and the intermediate boom 220, interference between the base boom 210 and the intermediate boom 220 can be prevented. For this reason, it is not necessary to perform strict distortion removal processing.
- the intermediate booms 220 and 230 can be inserted deeply into the base boom 210, and when the telescopic boom 200 is extended, the rear ends of the inner booms 220 and 230 with respect to the outer booms 210 and 220.
- the insertion amount (lap amount) of the part increases, and the mounting strength of the inner booms 220 and 230 with respect to the outer booms 210 and 220 can be ensured.
- FIG. 4 shows the mounting structure of the telescopic boom of the second embodiment.
- the bracket 400 shown in FIG. 4 is obtained by setting a predetermined region (third predetermined region) 401 including the shaft portion 314 of the base piece 312 and the shaft portion 316 of the protruding piece 313 from the base piece 312 to the protruding piece 313.
- the width between the predetermined areas 401 and 401 is set to W1 as in the first embodiment, the width of the other part is set to W2, and W2 is set larger than W1.
- the front edge 401K which is the boundary of each predetermined region 401, is inclined in the same direction as the first embodiment, that is, from the rear side to the front side toward the telescopic boom tip side.
- FIG. 5 shows the mounting structure of the telescopic boom of the third embodiment.
- the bracket 500 shown in FIG. 5 has a predetermined area (first predetermined area) 315 similar to that of the first embodiment and a predetermined area (second predetermined area) 501 including a shaft portion 316 on the protruding piece 313. .
- the width between the predetermined areas 501 and 501 is set to be narrower than the width of the base boom 210, and the width between the predetermined areas 501 and 501 is not necessarily W1. Since other configurations are the same as those in the first embodiment, the description thereof is omitted.
- FIG. 6 shows the mounting structure of the telescopic boom of the fourth embodiment.
- a bracket 600 shown in FIG. 6 is obtained by setting the entire base piece 312 and protruding piece 313 to a predetermined area (first predetermined area) 601 and a predetermined area (second predetermined area) 600, respectively.
- a shaft member or the like can be used.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
前記ブラケットは、前記ベースブームの後部の両側壁部に接合されるとともに、前記旋回ポストの相対向した一対の保持部間に保持される一対の当接板部を有し、
前記各当接板部は、前記旋回ポストの保持部に起伏可能に取り付ける第1軸部を有し、
前記各当接板部に第1軸部を含む第1所定領域をそれぞれ設定し、
前記第1所定領域間の幅に対して、第1所定領域以外のブラケットの幅を大きく設定したことを特徴とする。
図1は、伸縮ブームの取付構造を適用した作業機としてトラッククレーン(クレーン)10を示す。
[旋回ポスト]
旋回ポスト20は、伸縮ブーム200を起伏可能に保持する相対向した一対の保持板部(保持部)21(片方のみ図示)を有している。また、旋回ポスト20には、図示しないウインチ及び減速機が配置されており、吊荷を吊るワイヤ(図示せず)を巻き上げたり繰り出したりするようになっている。
[伸縮ブーム]
伸縮ブーム200は、ベースブーム210と中間ブーム220,230と先端ブーム240とを有し、この順序でベースブーム210内に外側から内側に入れ子式に組み合わされて構成されている。また、伸縮ブーム200は伸縮シリンダ(図示せず)によって伸縮するようになっている。
[ブラケット]
ブラケット300は、図3に示すように、ベースブーム210(図2参照)の両側壁部211に接合される一対の当接板部310,310と、この一対の当接板部310,310の後部上方から後端間に配置され、各当接板部310を接続する端板320とを有している。
伸縮ブーム200のベースブーム210の後部の両側壁部211,211にブラケット300の溶接領域部311を溶接し、ベースブーム210の上壁部210Cにはブラケット300の上板部321を溶接して、図2に示すように、ベースブーム210の後部にブラケット300を取り付ける。
[第2実施例]
図4は、第2実施例の伸縮ブームの取付構造を示す。図4に示すブラケット400は、基部片312の軸部314と突出片313の軸部316を含む所定領域(第3所定領域)401を基部片312から突出片313に亘って設定したものである。この所定領域401,401間の幅は第1実施例と同様にW1に設定され、他の部分の幅はW2に設定されており、W1に対してW2が大きく設定されている。また、各所定領域401の境界である前縁部401Kは、第1実施例と同じ方向すなわち後方側から前方側に向かって伸縮ブーム先端側へ傾斜されている。
[第3実施例]
図5は第3実施例の伸縮ブームの取付構造を示す。図5に示すブラケット500は、第1実施例と同様の所定領域(第1所定領域)315と、突出片313に軸部316を含む所定領域(第2所定領域)501を設定したものである。この所定領域501,501間の幅はベースブーム210の幅より狭く設定され、必ずしも所定領域501,501間の幅はW1である必要はない。他の構成は第1実施例と同様な構成なので、その説明は省略する。
[第4実施例]
図6は第4実施例の伸縮ブームの取付構造を示す。図6に示すブラケット600は、基部片312と突出片313の全体をそれぞれ所定領域(第1所定領域)601と所定領域(第2所定領域)600に設定したものであり、既存の旋回ポストと軸部材などを使用することができる。
本出願は、2015年6月11日に日本国特許庁に出願された特願2015-118618号に基づいて優先権を主張し、その全ての開示は完全に本明細書で参照により組み込まれる。
20 旋回ポスト
21 保持板部(保持部)
200 伸縮ブーム
210 ベースブーム
300 ブラケット
310 当接板部
312 基部片
314 軸部(第1軸部)
313 突出片
315 所定領域(第1所定領域)
315K 境界(前縁部)
316 軸部(第2軸部)
400 ブラケット
401 所定領域(第3所定領域)
500 ブラケット
501 所定領域(第2所定領域)
Claims (6)
- 作業機の伸縮ブームのベースブームの後部をブラケットによって保持するとともに、該ブラケットによって前記ベースブームを旋回ポストに対して起伏可能に取り付ける伸縮ブームの取付構造であって、
前記ブラケットは、前記ベースブームの後部の両側壁部に接合されるとともに、前記旋回ポストの相対向した一対の保持部間に保持される一対の当接板部を有し、
前記各当接板部は、前記旋回ポストの保持部に起伏可能に取り付ける第1軸部を有し、
前記各当接板部に第1軸部を含む第1所定領域をそれぞれ設定し、
前記第1所定領域間の幅に対して、第1所定領域以外のブラケットの幅を大きく設定したことを特徴とする伸縮ブームの取付構造。 - 前記第1所定領域の前縁部が傾斜するように該第1所定領域を設定したことを特徴とする請求項1に記載の伸縮ブームの取付構造。
- 前記ブラケットの各当接板部は、前記ベースブームの下面位置から下方に突出した突出片を有し、
前記伸縮ブームの起伏用の起伏シリンダの一端を保持する第2軸部を前記ブラケットの各突出片に設けたことを特徴とする請求項1または請求項2に記載の伸縮ブームの取付構造。 - 前記ブラケットの各突出片には、第2軸部を含む第2所定領域をそれぞれ設定し、前記各突出片の第2所定領域間の幅を前記ベースブームの幅より小さく設定したことを特徴とする請求項3に記載の伸縮ブームの取付構造。
- 前記ブラケットの第1軸部と第2軸部とを含む第3所定領域を前記基部片から突出片に亘って設定したことを特徴とする請求項3に記載の伸縮ブームの取付構造。
- 前記第3所定領域の前縁部が上から下に向かってブーム先端部側へ傾斜するように前記設定領域を設定したことを特徴とする請求項5に記載の伸縮ブームの取付構造。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020177032414A KR101975697B1 (ko) | 2015-06-11 | 2016-06-06 | 신축 붐의 장착 구조 |
JP2017523628A JP6286618B2 (ja) | 2015-06-11 | 2016-06-06 | 伸縮ブームの取付構造 |
CN201680028371.8A CN107635907B (zh) | 2015-06-11 | 2016-06-06 | 伸缩臂的安装结构 |
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JP2015118618 | 2015-06-11 | ||
JP2015-118618 | 2015-06-11 |
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WO2016199722A1 true WO2016199722A1 (ja) | 2016-12-15 |
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PCT/JP2016/066763 WO2016199722A1 (ja) | 2015-06-11 | 2016-06-06 | 伸縮ブームの取付構造 |
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KR (1) | KR101975697B1 (ja) |
CN (1) | CN107635907B (ja) |
WO (1) | WO2016199722A1 (ja) |
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Citations (5)
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)
Publication number | Priority date | Publication date | Assignee | Title |
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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。 |
JP2001171972A (ja) * | 1999-12-20 | 2001-06-26 | Tadano Ltd | 車載式クレーンのワイヤロープ緊張装置 |
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 |
JP4806049B2 (ja) * | 2009-03-27 | 2011-11-02 | 日立建機株式会社 | 2部材連結装置 |
JPWO2012026233A1 (ja) * | 2010-08-26 | 2013-10-28 | 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 |
WO2012157676A1 (ja) * | 2011-05-19 | 2012-11-22 | 日立建機株式会社 | 建設機械用アーム |
ES2542244T3 (es) * | 2012-09-28 | 2015-08-03 | Mesera Cranes Finland Oy | Grúa telescópica y configuración telescópica de elevación de una grúa telescópica |
-
2016
- 2016-06-06 CN CN201680028371.8A patent/CN107635907B/zh active Active
- 2016-06-06 WO PCT/JP2016/066763 patent/WO2016199722A1/ja active Application Filing
- 2016-06-06 KR KR1020177032414A patent/KR101975697B1/ko active IP Right Grant
- 2016-06-06 JP JP2017523628A patent/JP6286618B2/ja active Active
Patent Citations (5)
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 |
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CN107635907A (zh) | 2018-01-26 |
CN107635907B (zh) | 2019-06-21 |
KR101975697B1 (ko) | 2019-05-07 |
JP6286618B2 (ja) | 2018-02-28 |
KR20170136591A (ko) | 2017-12-11 |
JPWO2016199722A1 (ja) | 2018-03-08 |
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