JP2012126465A - Reaction support structure of telescopic boom - Google Patents
Reaction support structure of telescopic boom Download PDFInfo
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- JP2012126465A JP2012126465A JP2010276602A JP2010276602A JP2012126465A JP 2012126465 A JP2012126465 A JP 2012126465A JP 2010276602 A JP2010276602 A JP 2010276602A JP 2010276602 A JP2010276602 A JP 2010276602A JP 2012126465 A JP2012126465 A JP 2012126465A
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- 238000005452 bending Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
Description
本発明は、伸縮ブームの反力支持構造に関するものである。 The present invention relates to a reaction force support structure for a telescopic boom.
従来、高所作業車や移動式クレーンなどの作業車の伸縮ブームとして、様々な断面形状を有するものが知られており、さらに外箱部材と内箱部材の間にスライド部材が配置されたものが知られている。 Conventionally, as a telescopic boom of a work vehicle such as an aerial work vehicle or a mobile crane, those having various cross-sectional shapes are known, and a slide member is disposed between the outer box member and the inner box member It has been known.
例えば、特許文献１には、ピン固定式で搖動自在のスライドプレートが開示されている。この構成によれば、スライドプレートが揺動してブーム板に密着するようになるため、内部応力を抑えることができる。 For example, Patent Document 1 discloses a slide plate that is pin-fixable and freely movable. According to this configuration, since the slide plate swings and comes into close contact with the boom plate, internal stress can be suppressed.
しかしながら、特許文献１の構成は、構造が複雑であるため、設置に必要なスペースが大きくなるうえに、コストも増加するという問題があった。 However, since the structure of Patent Document 1 has a complicated structure, there is a problem that a space required for installation becomes large and costs also increase.
そこで、本発明は、簡単な構成によって内部応力を低減できる伸縮ブームの反力支持構造を提供することを目的としている。 Accordingly, an object of the present invention is to provide a reaction force support structure for a telescopic boom that can reduce internal stress with a simple configuration.
前記目的を達成するために、本発明の伸縮ブームの反力支持構造は、外箱部材の上板部両端に形成される外箱斜板部と、内箱部材の上板部両端に形成される内箱斜板部と、前記外箱斜板部と前記内箱斜板部の間に挿入されるスライド部材と、を備える伸縮ブームの反力支持構造であって、前記スライド部材は、前記内箱斜板部に向いた内向面の傾斜方向中央近傍が傾斜方向周辺よりも突出する突出部を有することを特徴としている。 In order to achieve the above object, the telescopic boom reaction force support structure of the present invention is formed at both ends of the outer box swash plate formed at both ends of the upper plate portion of the outer box member and at both ends of the upper plate portion of the inner box member. A telescopic boom reaction force support structure comprising: an inner box swash plate portion; and a slide member inserted between the outer box swash plate portion and the inner box swash plate portion. It has a feature that the vicinity of the center in the inclination direction of the inward surface facing the inner box swash plate portion has a protrusion that protrudes more than the periphery in the inclination direction.
このような構成としたため、内向面の傾斜方向中央近傍が内箱斜板部に接してスライド部材自体が揺動できるので、スライド部材の両側のコーナー近傍に確実に反力を伝達して伸縮ブームの内部応力を低減できる。そして、このような作用を簡単な構成で提供できる。 With such a configuration, the slide member itself can swing while the vicinity of the center of the inward surface in the inclination direction is in contact with the inner box swash plate portion. The internal stress of can be reduced. Such an operation can be provided with a simple configuration.
以下、本発明の実施の形態について図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
（ラフテレーンクレーンの全体構成）
まず、図１を用いて実施例１の伸縮ブームの反力支持構造Ｃを備えるラフテレーンクレーン１の全体構成を説明する。実施例１のラフテレーンクレーン１は、走行機能を有する車両の本体部分となるキャリア１０と、キャリア１０の四隅に配置されたアウトリガ１１，・・・と、キャリア１０に水平旋回自在に取り付けられた旋回台１２と、旋回台１２に立設されたブラケット１３に取り付けられた伸縮ブーム１４と、伸縮ブーム１４を起伏させる起伏シリンダ１５と、伸縮ブーム１４先端からワイヤロープ１６を介して吊下げられるフック１７と、操作レバーなどが配置されたキャビン１８と、を備えている。
(Overall configuration of rough terrain crane)
First, the overall configuration of the rough terrain crane 1 including the telescopic boom reaction force support structure C according to the first embodiment will be described with reference to FIG. The rough terrain crane 1 according to the first embodiment is attached to a carrier 10 that is a main body portion of a vehicle having a traveling function, outriggers 11,... A swivel base 12, a telescopic boom 14 attached to a bracket 13 erected on the swivel base 12, a hoisting cylinder 15 for hoisting the telescopic boom 14, and a hook suspended from the distal end of the telescopic boom 14 via a wire rope 16 17 and a cabin 18 in which an operation lever and the like are arranged.
伸縮ブーム１４は、鋼板によって筒状に形成された基端ブーム１４１、中間ブーム１４２、及び、先端ブーム１４３によって入れ子状に構成されている。そして、伸縮ブーム１４は、起伏シリンダ１５を伸縮することで起伏自在であり、内部に収容した伸縮シリンダ（不図示）を伸縮することで伸縮自在であり、伸縮ブーム１４を搭載した旋回台１２を回転することで旋回自在である。 The telescopic boom 14 is configured in a nested manner by a base end boom 141, an intermediate boom 142, and a front end boom 143 that are formed in a cylindrical shape from a steel plate. The telescopic boom 14 can be raised and lowered by extending and retracting the hoisting cylinder 15, and can be extended and retracted by extending and retracting an telescopic cylinder (not shown) accommodated therein. It can turn freely by rotating.
（ブームの構成）
次に、図２（ａ），（ｂ）を用いて伸縮ブーム１４の摺動部分の構成を説明する。ここでは、基端ブーム１４１と中間ブーム１４２の摺動部分の構成について説明する。
(Boom configuration)
Next, the structure of the sliding part of the telescopic boom 14 is demonstrated using FIG. 2 (a), (b). Here, the structure of the sliding part of the base end boom 141 and the intermediate | middle boom 142 is demonstrated.
伸縮ブーム１４の断面は、プレス機によって上半部を４回折り曲げるとともに下半部を４回折り曲げた八角形状に形成されている。そして、外箱部材としての中間ブーム１４２は、内箱部材としての基端ブーム１４１に比べてひと回り小さい八角形状に形成されている。 The cross section of the telescopic boom 14 is formed in an octagonal shape in which the upper half is bent four times by a press and the lower half is bent four times. The intermediate boom 142 as the outer box member is formed in an octagonal shape that is slightly smaller than the proximal boom 141 as the inner box member.
そして、基端ブーム１４１の平板状の上板部両端は、約４５°下方に折り曲げられて外箱斜板部４が形成され、中間ブーム１４２の平板状の上半部両端には、約４５°下方に傾斜した内箱斜板部としてのサポート５が設置されているため、外箱斜板部４とサポート５とは、製作時の折り曲げ誤差を含むものの略平行になっている。 The both ends of the flat plate-like upper plate portion of the base end boom 141 are bent downward by about 45 ° to form the outer box swash plate portion 4, and the flat plate-like upper half portion of the intermediate boom 142 has both ends arranged at about 45 °. Since the support 5 as the inner box swash plate portion inclined downward is installed, the outer case swash plate portion 4 and the support 5 are substantially parallel to each other although bending errors at the time of manufacture are included.
この外箱斜板部４は、外箱部材としての基端ブーム１４１の上板部を折り曲げて形成するため、基端ブーム１４１を形成する鋼板と同一の厚みとなっている。一方、サポート５は、内箱部材としての中間ブーム１４２に、補強を兼ねて別の鋼板を溶接したものであるため、中間ブーム１４２を形成する鋼板よりも厚肉となっている。 Since the outer box swash plate portion 4 is formed by bending the upper plate portion of the base end boom 141 as an outer case member, it has the same thickness as the steel plate forming the base end boom 141. On the other hand, the support 5 is formed by welding another steel plate also serving as a reinforcement to the intermediate boom 142 as an inner box member, and thus is thicker than the steel plate forming the intermediate boom 142.
さらに、外箱部材としての基端ブーム１４１と内箱部材としての中間ブーム１４２との間には、３箇所にスライド部材２，３１，３２が挿入されることにより、反力Ｒ１，Ｒ２に対応する作用力を分散している。 Further, the slide members 2, 31, and 32 are inserted between the base end boom 141 as the outer box member and the intermediate boom 142 as the inner box member, so that the reaction forces R 1 and R 2 are inserted. The acting force corresponding to is distributed.
すなわち、基端ブーム１４１の先端部には、内面下部にスライド部材３２が配置されて、伸縮ブーム１４を伸ばした状態では中間ブーム１４２の基端部の先端寄りの位置と接触する。 That is, the slide member 32 is disposed at the lower end of the inner surface at the distal end portion of the proximal boom 141, and contacts the position closer to the distal end of the proximal end portion of the intermediate boom 142 when the telescopic boom 14 is extended.
また、中間ブーム１４２の基端部には、側面下部にスライド部材３１が配置されて、伸縮ブーム１４を伸ばした状態では基端ブーム１４１の先端部の基端寄りの位置と接触する。 In addition, a slide member 31 is disposed at the lower side of the base end portion of the intermediate boom 142, and in a state where the telescopic boom 14 is extended, it comes into contact with a position closer to the base end of the distal end portion of the base end boom 141.
さらに、中間ブーム１４２の基端部には、サポート５にスライド部材２が配置されて、伸縮ブーム１４を伸ばした状態では基端ブーム１４１の外箱斜板部４の基端寄りの位置と接触する。 Further, the slide member 2 is disposed on the support 5 at the base end portion of the intermediate boom 142, and in a state where the telescopic boom 14 is extended, it contacts with a position near the base end of the outer box swash plate portion 4 of the base end boom 141. To do.
このため、図２（ｂ）のように、伸縮ブーム１４を伸ばした状態で吊荷の荷重Ｗが作用すると、中間ブーム１４２の基端部の先端寄りではスライド部材３２を通じて下方へ反力Ｒ１を作用させるとともに、中間ブーム１４２の基端部にはスライド部材２を通じて上方へ反力Ｒ２を作用させることとなる。 For this reason, as shown in FIG. 2B, when the load W of the suspended load acts with the telescopic boom 14 extended, the reaction force R 1 is lowered downward through the slide member 32 near the distal end of the base end portion of the intermediate boom 142. And a reaction force R 2 is applied to the base end portion of the intermediate boom 142 upward through the slide member 2.
言い換えると、吊荷の荷重Ｗが作用すると、基端ブーム１４１の先端部において、スライド部材３２を通じて上方から押下力が作用することで、下板部に反力として内部応力が生じる。 In other words, when a load W of the suspended load is applied, a pressing force is applied from above through the slide member 32 at the distal end portion of the base end boom 141, thereby generating an internal stress as a reaction force in the lower plate portion.
同様に、吊荷の荷重Ｗが作用すると、基端ブーム１４１の先端部の基端寄りにおいて、スライド部材２を通じて斜め下方から押上力が作用することで、外箱斜板部４に反力として内部応力が生じる。 Similarly, when the load W of the suspended load is applied, a push-up force is applied obliquely from below through the slide member 2 near the proximal end of the proximal end boom 141, thereby causing a reaction force on the outer box swash plate portion 4. Internal stress occurs.
以下、中間ブーム１４２の基端部のスライド部材２を含む伸縮ブームの反力支持構造Ｃについて詳述する。 Hereinafter, the telescopic boom reaction force support structure C including the slide member 2 at the base end portion of the intermediate boom 142 will be described in detail.
（反力支持構造の構成）
次に、図３，４を用いて本実施例の伸縮ブームの反力支持構造Ｃの構成について説明する。
(Structure of reaction force support structure)
Next, the configuration of the reaction force support structure C for the telescopic boom according to this embodiment will be described with reference to FIGS.
本実施例の伸縮ブームの反力支持構造Ｃは、外箱部材としての基端ブーム１４１の上板部両端に形成される外箱斜板部４と、内箱部材としての中間ブーム１４２の上板部両端に形成される内箱斜板部としてのサポート５と、外箱斜板部４とサポート５の間に挿入されるスライド部材２と、を備えている。 The telescopic boom reaction force support structure C of the present embodiment includes an outer box swash plate portion 4 formed at both ends of an upper plate portion of a base end boom 141 as an outer box member, and an upper portion of an intermediate boom 142 as an inner box member. A support 5 as an inner box swash plate portion formed at both ends of the plate portion and a slide member 2 inserted between the outer box swash plate portion 4 and the support 5 are provided.
加えて、スライド部材２の内側であってサポート５との間には、外箱斜板部４とサポート５の間隔を調整するための２枚のシム２１，２１が挿入されている。 In addition, two shims 21 and 21 for adjusting the distance between the outer box swash plate portion 4 and the support 5 are inserted inside the slide member 2 and between the support 5.
シム２１は、鋼板によって矩形に形成されるもので、両端の突出片２１ａ，２１ａがブラケット５１，５１に設けた凹部５１ａ，５１ａに嵌合することで、面内方向の移動が拘束されて脱落しないようになっている。 The shim 21 is formed in a rectangular shape by a steel plate, and the protrusions 21a and 21a at both ends are fitted into the recesses 51a and 51a provided in the brackets 51 and 51, so that the movement in the in-plane direction is restrained and falls off. It is supposed not to.
スライド部材２は、外箱部材としての基端ブーム１４１と内箱部材としての中間ブーム１４２の間の摩擦抵抗を低減しつつ応力を分散して摺動を円滑にするためのもので、合成樹脂によって対称な七角柱状に形成されて、外箱斜板部４とサポート５の間に所定の余裕をもって嵌め込まれている。 The slide member 2 is a synthetic resin for reducing the frictional resistance between the base end boom 141 as the outer box member and the intermediate boom 142 as the inner box member and distributing the stress to make the sliding smooth. Is formed into a symmetrical heptagonal prism shape, and is fitted between the outer box swash plate portion 4 and the support 5 with a predetermined margin.
そして、配置について詳細に説明すると、スライド部材２は、外箱斜板部４（及びサポート５）の板面に対する面外方向Ｄ３は、外箱斜板部４及びサポート５によって移動が制限されている。具体的には、スライド部材２の面外方向の厚みは、外箱斜板部４とサポート５の間隔より小さく、かつ、伸縮ブーム１４の摺動に支障のない最大に形成されているためＤ３方向にほとんど移動しない。 The arrangement of the slide member 2 is limited by the outer box swash plate portion 4 and the support 5 in the out-of-plane direction D3 with respect to the plate surface of the outer box swash plate portion 4 (and the support 5). Yes. Specifically, the thickness of the slide member 2 in the out-of-plane direction is smaller than the distance between the outer box swash plate portion 4 and the support 5 and is formed to the maximum so as not to interfere with the sliding of the telescopic boom 14. Little movement in the direction.
また、スライド部材２は、面内方向のうちブーム軸と平行な方向Ｄ２はブラケット５１，５１によって移動が制限されている。具体的には、スライド部材２のブーム軸方向の長さは、ブラケット５１，５１の間隔と略同一に形成されているためＤ２方向にほとんど移動しない。 Further, the movement of the slide member 2 is restricted by brackets 51 and 51 in a direction D2 parallel to the boom axis in the in-plane direction. Specifically, since the length of the slide member 2 in the boom axis direction is formed substantially the same as the interval between the brackets 51, 51, it hardly moves in the D2 direction.
さらに、面内方向のうちブーム軸と垂直な方向Ｄ１（後述の傾斜方向Ｄ１と同じ）は基端ブーム１４１によって移動が制限されている。具体的には、スライド部材２のブーム軸垂直方向の長さは、外箱部材として基端ブーム１４１の上板部及び側板部の間隔より小さく、かつ、伸縮ブーム１４の摺動に支障のない最大に形成されているためＤ１方向に移動しない。 Further, movement in the in-plane direction perpendicular to the boom axis D1 (the same as an inclination direction D1 described later) is restricted by the proximal boom 141. Specifically, the length of the slide member 2 in the direction perpendicular to the boom axis is smaller than the distance between the upper plate portion and the side plate portion of the base end boom 141 as an outer box member, and there is no hindrance to sliding of the telescopic boom 14. Since it is formed to the maximum, it does not move in the D1 direction.
ここにおいて、スライド部材２の外向面の上端部２ｄから下端部２ｅまでの長さは、片当たりを防止するために、外箱斜板部４の屈曲部４ａ，４ｂ間の長さよりも所定量（3mm程度の微小値）だけ短く形成されている。 Here, the length from the upper end portion 2d to the lower end portion 2e of the outward surface of the slide member 2 is a predetermined amount than the length between the bent portions 4a and 4b of the outer box swash plate portion 4 in order to prevent the one-side contact. It is made shorter by (a minute value of about 3 mm).
そして、傾斜方向に直交する方向視（ブーム軸に垂直な平面で切断した方向）の断面形状について詳細に説明すると、七角柱状のスライド部材２は、サポート５に向いた内向面の傾斜方向中央近傍が傾斜方向周辺よりも突出する突出部２ａを備えている。ここにおいて、傾斜方向とは、断面方向（ブーム軸垂直方向）かつ外箱斜板部４（及びサポート５）と平行な方向をいうものとする（図３のＤ１方向）。 The cross-sectional shape in a direction perpendicular to the tilt direction (direction cut by a plane perpendicular to the boom axis) will be described in detail. The heptagonal prism-shaped slide member 2 is centered in the tilt direction of the inward surface facing the support 5. Protrusions 2a that protrude in the vicinity from the periphery in the inclination direction are provided. Here, the inclination direction refers to a cross-sectional direction (boom axis vertical direction) and a direction parallel to the outer box swash plate portion 4 (and the support 5) (D1 direction in FIG. 3).
具体的には、スライド部材２の内向面側の断面は、内向面の傾斜方向Ｄ１の中央近傍の突出部２ａを頂点とする三角形状ないし船底形状に形成されている。 Specifically, the cross section on the inward surface side of the slide member 2 is formed in a triangular shape or a ship bottom shape having a protrusion 2a in the vicinity of the center in the inclination direction D1 of the inward surface.
この突出部２ａの位置は、突出部２ａを揺動中心として外箱斜板部４に向いた外向面の傾斜方向Ｄ１両端位置から作用する反力モーメントが左右両端で等しくなるように形成されている。例えば、外箱斜板部４（及びサポート５）の折り曲げ角度が４５°の場合には、スライド部材２の内向面側の断面は二等辺三角形状になる。 The positions of the projecting portions 2a are formed such that reaction force moments acting from both ends of the inclined direction D1 of the outward surface facing the outer box swash plate portion 4 with the projecting portion 2a as a swing center are equal at both left and right ends. Yes. For example, when the bending angle of the outer box swash plate portion 4 (and the support 5) is 45 °, the cross section on the inward surface side of the slide member 2 is an isosceles triangle.
加えて、この突出部２ａを頂点とする三角形の底角の角度は、使用時の荷重による捩れ変形や外箱斜板部４とサポート５の製作誤差などによる角度の差分の最大値よりも大きくなるように形成される。 In addition, the angle of the base angle of the triangle having the protrusion 2a as the apex is larger than the maximum value of the angle difference due to torsional deformation due to a load during use or manufacturing error of the outer case swash plate portion 4 and the support 5. Formed to be.
さらに、スライド部材２は、傾斜方向Ｄ１に向いた上端面及び下端面の外向面寄りの位置に、外向面の傾斜方向両端位置よりも傾斜方向Ｄ１に突出したエラ部２ｂ，２ｃを有している。 Furthermore, the slide member 2 has error portions 2b and 2c that protrude in the inclination direction D1 from both ends of the outer surface in the inclination direction at positions closer to the outward direction of the upper end surface and the lower end surface in the inclination direction D1. Yes.
つまり、スライド部材２の傾斜方向Ｄ１に向いた上端面には、スライド部材２の外向面の上端部２ｄが、基端ブーム１４１の上側の屈曲部４ａに乗り上げるよりも前に上板部と接触するエラ部２ｂが形成されている。 That is, the upper end portion 2d of the outward surface of the slide member 2 contacts the upper plate portion before the upper end portion 2d of the slide member 2 faces the bending portion 4a on the upper side of the proximal boom 141. An error portion 2b is formed.
同様に、スライド部材２の傾斜方向Ｄ１に向いた下端面には、スライド部材２の外向面の下端部２ｅが、基端ブーム１４１の上側の屈曲部４ｂに乗り上げるよりも前に側板部と接触するエラ部２ｃが形成されている。 Similarly, the lower end surface 2e of the slide member 2 is in contact with the side plate portion before the lower end portion 2e of the outward surface of the slide member 2 rides on the bent portion 4b on the upper side of the proximal boom 141. An error portion 2c is formed.
（作用）
次に、図２，５を用いて本実施例の伸縮ブームの反力支持構造Ｃの作用について説明する。ここでは、吊荷によって基端ブーム１４１に対し中間ブーム１４２が相対的に捩れて、あるいは、製作時の誤差によって、上板部に対する外箱斜板部４の折曲角度よりもサポート５の折曲角度のほうが浅く、下方において両者の間隔が狭くなっている場合について説明する。
(Function)
Next, the operation of the reaction force support structure C for the telescopic boom of this embodiment will be described with reference to FIGS. Here, the intermediate boom 142 is twisted relative to the proximal boom 141 due to the suspended load, or the folding of the support 5 is more than the bending angle of the outer box swash plate portion 4 with respect to the upper plate portion due to errors in manufacturing. A case where the bending angle is shallower and the distance between the two is narrower below will be described.
まず、図２に示すように、伸縮ブーム１４を伸ばした状態で吊荷の荷重Ｗが作用すると、中間ブーム１４２の基端部の前寄り位置が支点となって、中間ブーム１４２の基端部は上方に移動する。 First, as shown in FIG. 2, when the load W of the suspended load acts with the telescopic boom 14 extended, the front end position of the base end portion of the intermediate boom 142 serves as a fulcrum, and the base end portion of the intermediate boom 142 Moves upward.
この過程を拡大した断面で説明すると、図５（ａ）に示すように、中間ブーム１４２の基端部に設置されたサポート５が上方向に移動すると（黒矢印）、サポート５の上面がスライド部材２の突出部２ａと接触する。 Explaining this process in an enlarged cross section, as shown in FIG. 5A, when the support 5 installed at the base end of the intermediate boom 142 moves upward (black arrow), the upper surface of the support 5 slides. It contacts the protrusion 2a of the member 2.
引き続き、サポート５が上方向に移動すると、スライド部材２の突出部２ａはサポート５の上面と接触したまま、スライド部材２の外向面の下端部２ｅが外箱斜板部４の下側の屈曲部４ｂ近傍と接触する。 When the support 5 continues to move upward, the projecting portion 2 a of the slide member 2 is in contact with the upper surface of the support 5, and the lower end 2 e of the outward surface of the slide member 2 is bent downward on the outer box swash plate portion 4. It contacts the vicinity of the portion 4b.
さらに、サポート５が上方向に移動すると、突出部２ａ及び下端部２ｅの接触を保ったまま、スライド部材２の上側が下端部２ｅを揺動中心として外箱斜板部４方向に揺動する（白矢印）。 Further, when the support 5 moves upward, the upper side of the slide member 2 swings in the direction of the outer box swash plate 4 with the lower end 2e as the center of swinging while maintaining the contact between the protruding portion 2a and the lower end 2e. (White arrow).
そして、図５（ｂ）に示すように、スライド部材２の外向面の上端部２ｄが外箱斜板部４の上側の屈曲部４ａと接触した後は、突出部２ａを揺動中心として上端部２ｄ及び下端部２ｅからのモーメントがつり合うことで、スライド部材２の位置が固定されることとなる。 Then, as shown in FIG. 5B, after the upper end 2d of the outward surface of the slide member 2 comes into contact with the upper bent portion 4a of the outer box swash plate portion 4, the upper end with the protruding portion 2a as the swing center When the moments from the portion 2d and the lower end 2e are balanced, the position of the slide member 2 is fixed.
この際、例えばスライド部材２が上方向にずれても、上側のエラ部２ｂが基端ブーム１４１の上板部と接触して押下力を受けることで、スライド部材２は下方に移動する。 At this time, for example, even if the slide member 2 is displaced upward, the slide member 2 moves downward when the upper error portion 2b contacts the upper plate portion of the base end boom 141 and receives a pressing force.
（効果）
次に、本実施例の伸縮ブームの反力支持構造Ｃの効果を列挙して説明する。
(effect)
Next, the effects of the reaction force support structure C for the telescopic boom of this embodiment will be listed and described.
（１）実施例１の伸縮ブームの反力支持構造Ｃでは、スライド部材２は、内箱斜板部としてのサポート５に向いた内向面の傾斜方向Ｄ１中央近傍が傾斜方向周辺よりも突出する突出部２ａを有している。 (1) In the reaction force support structure C for the telescopic boom of the first embodiment, the slide member 2 projects in the vicinity of the center in the inclination direction D1 of the inward surface facing the support 5 as the inner box swash plate portion from the periphery in the inclination direction. It has a protrusion 2a.
したがって、内向面の傾斜方向Ｄ１中央近傍が内箱斜板部としてのサポート５に接してスライド部材２自体が長手方向の軸に対して揺動することで、スライド部材２の両側のコーナー近傍である上端部２ｄ及び下端部２ｅに確実に反力を伝達して伸縮ブーム１４の内部応力を低減できる。そして、このような作用を簡単な構成で提供できる。 Accordingly, the vicinity of the center of the inwardly inclined direction D1 is in contact with the support 5 as the inner box swash plate portion, and the slide member 2 itself swings with respect to the longitudinal axis. The reaction force can be reliably transmitted to the upper end 2d and the lower end 2e, and the internal stress of the telescopic boom 14 can be reduced. Such an operation can be provided with a simple configuration.
つまり、使用時のブーム間の相対的な捩れや変形や製作時の誤差等に起因して、内箱斜板部としてのサポート５と外箱斜板部４の折曲角度が一致せず両者が平行に形成されていない場合には、スライド部材２の内向面と外向面が平行に形成されていると、上端部２ｄ又は下端部２ｅの一方のみがサポート５及び外箱斜板部４に挟まれて片当たりが生じてしまう。 That is, the bending angle between the support 5 as the inner box swash plate portion and the outer case swash plate portion 4 does not coincide with each other due to relative twisting and deformation between the booms during use, errors in manufacturing, and the like. Are not formed in parallel, and if the inward surface and the outward surface of the slide member 2 are formed in parallel, only one of the upper end portion 2d or the lower end portion 2e is formed on the support 5 and the outer box swash plate portion 4. It will be pinched and one-sided contact will occur.
このように片当たりが生じると、外箱斜板部４を含む外箱部材には高応力が発生することで疲労寿命が著しく低下するうえ、これを防止するために板厚を増加したり補強板を追加したりすると軽量化の妨げになる。さらに、補強板を追加する場合には、溶接歪を取除く作業が新たに生じるためコストが増加してしまう。 In this way, when the one-side contact occurs, the outer box member including the outer box swash plate portion 4 is subjected to high stress, so that the fatigue life is remarkably lowered, and in order to prevent this, the plate thickness is increased or reinforced. Adding a plate will hinder weight reduction. Furthermore, when a reinforcing plate is added, the cost increases because a new work for removing the welding distortion occurs.
そこで、スライド部材２を傾斜方向Ｄ１中央近傍が突出するように形成しておけば、伸縮ブーム１４の伸縮時に内箱部材が外箱部材に近づくように移動すると、周辺よりも突出した傾斜方向Ｄ１中央近傍が周辺よりも先にサポート５に接して、スライド部材２自体が揺動して、外箱部材を面で捕らえるようになる。 Therefore, if the slide member 2 is formed so that the vicinity of the center of the tilt direction D1 protrudes, when the inner box member moves closer to the outer box member when the telescopic boom 14 is expanded and contracted, the tilt direction D1 protrudes from the periphery. The vicinity of the center comes into contact with the support 5 before the periphery, and the slide member 2 itself swings so that the outer box member is captured by the surface.
この場合、外箱部材は薄板であるため片当たりして高応力が発生すると疲労による亀裂発生の懸念があるものの、内箱部材のサポート５は厚板であるため面での接触にならなくても高応力は発生しない。 In this case, since the outer box member is a thin plate, there is a concern that cracking due to fatigue occurs when a high stress is generated by hitting one side. However, the support 5 of the inner box member is a thick plate, so it does not come into contact with the surface. However, high stress does not occur.
（２）また、スライド部材２は、突出部２ａを揺動中心として、外箱斜板部４に向いた外向面の傾斜方向Ｄ１両端位置である上端部２ｄ及び下端部２ｅから作用する反力モーメントが等しくなるように形成されることで、上端部２ｄ及び下端部２ｅを通じて均等に応力を分散した状態でスライド部材２の位置が固定される。 (2) Further, the slide member 2 has a reaction force acting from the upper end 2d and the lower end 2e at both ends of the inclined direction D1 of the outward surface facing the outer box swash plate 4 with the protrusion 2a as the center of oscillation. By forming the moments to be equal, the position of the slide member 2 is fixed in a state where stress is evenly distributed through the upper end 2d and the lower end 2e.
つまり、スライド部材２は、揺動中は下端部２ｅ（又は上端部２ｄ）を中心として揺動するが（図５（ａ））、上端部２ｄ（又は下端部２ｅ）が接触した後は、モーメントがつり合うことで揺動しなくなる。 That is, the slide member 2 swings around the lower end 2e (or upper end 2d) during swinging (FIG. 5A), but after the upper end 2d (or lower end 2e) contacts, It will not swing when the moments are balanced.
（３）さらに、スライド部材２は、内向面が三角形状に形成されることで、きわめて簡単な形状によって、突出部２ａを形成できるうえに、製作コストを抑えることができる。 (3) Furthermore, the slide member 2 is formed in a triangular shape on the inward surface, so that the protruding portion 2a can be formed with a very simple shape, and the manufacturing cost can be reduced.
加えて、突出部２ａが三角形の頂点として形成されている場合でも、使用している間に内向面及び外向面は徐々に変形して外側ブームに当たりがついた状態（応力を分散した位置）で馴染んでくる。 In addition, even when the projecting portion 2a is formed as a vertex of a triangle, the inward surface and the outward surface are gradually deformed during use and are in contact with the outer boom (a position where stress is dispersed). I'm getting used to it.
（４）そして、スライド部材２は、傾斜方向に向いた上端面及び下端面に、外向面の傾斜方向Ｄ１両端位置よりも突出したエラ部２ｂ、２ｃを有することで、外箱部材の上板部や側板部から反力を受けたスライド部材２が移動して、片当たりの発生を防止できる。 (4) And the slide member 2 has the error portions 2b and 2c protruding from the both ends of the inclined direction D1 of the outward surface on the upper end surface and the lower end surface facing the inclined direction, so that the upper plate of the outer box member The slide member 2 that has received the reaction force from the portion and the side plate portion moves, and the occurrence of contact with each other can be prevented.
例えば、スライド部材２が傾斜方向Ｄ１の上方にずれた場合には、上側のエラ部２ｂが外箱部材の上板部と接触して押下力を受けて、スライド部材２が傾斜方向Ｄ１下方に移動する。他方、スライド部材２が傾斜方向Ｄ１の下方にずれた場合には、下側のエラ部２ｃが外箱部材の側板部と接触して押下力を受けて、スライド部材２が傾斜方向Ｄ１上方に移動する。 For example, when the slide member 2 is displaced upward in the tilt direction D1, the upper error portion 2b contacts the upper plate portion of the outer box member and receives a pressing force, and the slide member 2 moves downward in the tilt direction D1. Moving. On the other hand, when the slide member 2 is displaced downward in the tilt direction D1, the lower error portion 2c contacts the side plate portion of the outer box member and receives a pressing force, so that the slide member 2 moves upward in the tilt direction D1. Moving.
以下、図６を用いて、前記実施例とは別の形態のスライド部材２Ａを備える伸縮ブームの反力支持構造Ｃ１について説明する。なお、前記実施例で説明した内容と同一乃至均等な部分の説明については同一符号を付して説明する。 Hereinafter, the reaction force support structure C1 of the telescopic boom provided with the slide member 2A having a form different from that of the embodiment will be described with reference to FIG. The description of the same or equivalent parts as described in the above embodiment will be given with the same reference numerals.
（全体構成及びブームの構成）
まず、構成について説明するが、ラフテレーンクレーン１の全体構成及び伸縮ブーム１４の構成は、実施例１と略同様であるため説明を省略する。
(Overall configuration and boom configuration)
First, the configuration will be described. Since the overall configuration of the rough terrain crane 1 and the configuration of the telescopic boom 14 are substantially the same as those in the first embodiment, the description thereof is omitted.
（反力支持構造の構成）
実施例２の伸縮ブームの反力支持構造Ｃ１の構成は、実施例１と略同様に、外箱斜板部４と、内箱斜板部としてのサポート５と、スライド部材２Ａと、を備えている。なお、本実施例では、外箱斜板部４とサポート５の間隔を調整するシムは挿入されていない。一方、スライド部材２Ａの形状は実施例１と異なっている。
(Structure of reaction force support structure)
The structure of the telescopic boom reaction force support structure C1 according to the second embodiment includes an outer box swash plate portion 4, a support 5 as an inner box swash plate portion, and a slide member 2A, as in the first embodiment. ing. In this embodiment, no shim for adjusting the distance between the outer box swash plate portion 4 and the support 5 is inserted. On the other hand, the shape of the slide member 2A is different from that of the first embodiment.
つまり、本実施例のスライド部材２Ａは、外箱部材としての基端ブーム１４１と内箱部材としての中間ブーム１４２の間の摩擦抵抗を低減しつつ応力を分散して摺動を円滑にするためのもので、合成樹脂によってサポート５に向いた内向面の傾斜方向中央近傍が傾斜方向周辺よりも突出する円弧形状の突出部２ｆを備えたかまぼこ形状に形成されて、外箱斜板部４とサポート５の間に所定の余裕をもって嵌め込まれている。 That is, the slide member 2A of the present embodiment distributes stress and smoothes sliding while reducing the frictional resistance between the base end boom 141 as the outer box member and the intermediate boom 142 as the inner box member. The inner surface of the inward surface facing the support 5 is made of a synthetic resin and is formed in a semi-cylindrical shape with an arc-shaped protruding portion 2f protruding from the periphery of the inclined direction. The support 5 is fitted with a predetermined margin.
配置については、実施例１と同様であるから説明を省略する。 Since the arrangement is the same as that of the first embodiment, the description thereof is omitted.
この突出部２ｆの最も突出した頂点位置は、突出部２ｆの頂点位置を揺動中心として外箱斜板部４に向いた外向面の傾斜方向Ｄ１両端位置から作用する反力モーメントが左右両端で等しくなるように形成されている。 The most projecting vertex position of the projecting portion 2f is the reaction force moment acting from both end positions of the inclined direction D1 of the outward surface facing the outer box swash plate portion 4 with the vertex position of the projecting portion 2f as the center of oscillation. It is formed to be equal.
加えて、突出部２ｆの円弧の半径は、外箱斜板部４とサポート５の製作誤差や使用時のブーム間の相対的な捩れや変形による角度差が最大値になっても、円弧形状の突出部２ｆがサポート５と接触するように形成される。なお、実施例２のスライド部材２は、エラ部を有していない。 In addition, the radius of the arc of the projecting portion 2f is the arc shape even if the manufacturing error of the outer box swash plate portion 4 and the support 5 and the angle difference due to relative torsion or deformation between the booms in use become the maximum value. The protruding portion 2 f is formed so as to come into contact with the support 5. In addition, the slide member 2 of Example 2 does not have an error part.
（作用・効果）
次に、実施例２の伸縮ブームの反力支持構造Ｃ１の作用・効果について説明する。
(Action / Effect)
Next, the operation and effect of the telescopic boom reaction force support structure C1 according to the second embodiment will be described.
（１）実施例２の伸縮ブームの反力支持構造Ｃ１では、スライド部材２Ａは、内箱斜板部としてのサポート５に向いた内向面の傾斜方向Ｄ１中央近傍が傾斜方向周辺よりも突出する突出部２ｆを有している。 (1) In the reaction force support structure C1 for the telescopic boom according to the second embodiment, the slide member 2A projects in the vicinity of the center in the inclination direction D1 of the inward surface facing the support 5 as the inner box swash plate portion from the periphery in the inclination direction. It has a protruding portion 2f.
したがって、内向面の傾斜方向Ｄ１中央近傍が内箱斜板部としてのサポート５に接してスライド部材２Ａ自体が揺動することで、スライド部材２Ａの両側のコーナー近傍である上端部２ｄ及び下端部２ｅに確実に反力を伝達して伸縮ブーム１４の内部応力の集中を分散できる。 Therefore, the slide member 2A itself swings in contact with the support 5 as the inner box swash plate portion in the vicinity of the center in the inclining direction D1 of the inward surface, so that the upper end 2d and the lower end near the corners on both sides of the slide member 2A. The reaction force can be reliably transmitted to 2e and the concentration of the internal stress of the telescopic boom 14 can be dispersed.
（２）また、実施例２のスライド部材２Ａは、内向面が円弧形状に形成されることで、きわめて簡単な形状によって突出部２ｆを形成できる。 (2) Further, the slide member 2A according to the second embodiment can form the protruding portion 2f with a very simple shape by forming the inward surface in an arc shape.
さらに、突出部２ｆが円弧形状に形成されていれば、突出部２ｆのどの位置がサポート５と接触しても、接触位置から押上力を伝達してスライド部材２Ａ自体を揺動させやすくなる。 Further, if the protruding portion 2f is formed in an arc shape, it is easy to swing the slide member 2A itself by transmitting a push-up force from the contact position no matter which position of the protruding portion 2f contacts the support 5.
なお、この他の構成および作用効果については、前記実施例と略同様であるため説明を省略する。 In addition, since it is as substantially the same as the said Example about another structure and an effect, description is abbreviate | omitted.
以上、図面を参照して、本発明の実施例を詳述してきたが、具体的な構成は、この実施例に限らず、本発明の要旨を逸脱しない程度の設計的変更は、本発明に含まれる。 The embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to the present invention. included.
例えば、実施例１，２では、ラフテレーンクレーン１に本発明を適用する場合について説明したが、これに限定されるものではなく、カーゴクレーン、トラッククレーンなどの移動式クレーン、高所作業車など、伸縮ブームを備える作業車であれば本発明を適用できる。 For example, in the first and second embodiments, the case where the present invention is applied to the rough terrain crane 1 has been described. However, the present invention is not limited to this, and a mobile crane such as a cargo crane or a truck crane, an aerial work vehicle, or the like. The present invention can be applied to any work vehicle provided with a telescopic boom.
また、実施例１，２では、内向面の断面形状が三角形状のスライド部材２と円弧形状のスライド部材２Ａとについて説明したが、これに限定されるものではなく、傾斜方向中央近傍が周辺よりも突出する形状であれば、例えば凸字状など、どのような形状であってもよい。 In the first and second embodiments, the inwardly directed cross-sectional shape of the slide member 2 and the arc-shaped slide member 2A have been described. However, the present invention is not limited to this. As long as the shape protrudes, any shape such as a convex shape may be used.
さらに、実施例１，２では、ブーム断面の下半部を４回折り曲げた八角形状に形成する場合について説明したが、これに限定されるものではなく、上半部に斜板部を有する形状であれば本発明を適用できる。 Furthermore, in the first and second embodiments, the case where the lower half of the boom section is formed into an octagonal shape bent four times has been described, but the present invention is not limited to this, and the shape having a swash plate portion in the upper half If so, the present invention can be applied.
そして、実施例１，２では、スライド部材２，２Ａについて、ブーム軸に垂直な左右方向の断面形状について詳述したが、これに限定されるものではなく、ブーム軸に沿った前後方向の断面形状が三角形状（点接触）又は円弧形状（点接触）にも形成されるものであってもよい。 In the first and second embodiments, the slide members 2 and 2A have been described in detail with respect to the cross-sectional shape in the left-right direction perpendicular to the boom axis. The shape may be formed in a triangular shape (point contact) or an arc shape (point contact).
１ ラフテレーンクレーン
１４ 伸縮ブーム
１４１ 基端ブーム（外箱部材）
１４２ 中間ブーム（内箱部材）
２，２Ａ スライド部材
２ａ 突出部
２ｂ，２ｃ エラ部
２ｄ 上端部
２ｅ 下端部
２ｆ 突出部
４ 外箱斜板部
４ａ，４ｂ 屈曲部
５ サポート（内箱斜板部）
1 Rough terrain crane 14 Telescopic boom 141 Base end boom (outer box member)
142 Middle boom (inner box member)
2,2A Slide member 2a Protruding portion 2b, 2c Elastic portion 2d Upper end portion 2e Lower end portion 2f Protruding portion 4 Outer box swash plate portions 4a, 4b Bending portion 5 Support (inner box swash plate portion)
Claims (5)
前記スライド部材は、前記内箱斜板部に向いた内向面の傾斜方向中央近傍が傾斜方向周辺よりも突出する突出部を有することを特徴とする伸縮ブームの反力支持構造。 Outer box swash plate part formed at both ends of upper plate part of outer box member, inner box swash plate part formed at both ends of upper plate part of inner box member, said outer box swash plate part and said inner box swash plate A sliding member inserted between the parts, a telescopic boom reaction force support structure comprising:
The sliding member has a projecting portion in which the vicinity of the center in the inclination direction of the inward surface facing the inner box swash plate portion protrudes from the periphery in the inclination direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010276602A JP5759711B2 (en) | 2010-12-13 | 2010-12-13 | Reaction force support structure of telescopic boom |
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| JP2010276602A JP5759711B2 (en) | 2010-12-13 | 2010-12-13 | Reaction force support structure of telescopic boom |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241663A (en) * | 2013-05-07 | 2013-08-14 | 三一帕尔菲格特种车辆装备有限公司 | Crane, and telescopic arm and knuckle arm thereof |
| JP6165930B1 (en) * | 2016-06-06 | 2017-07-19 | 東芝エレベータ株式会社 | Slide mechanism |
| JP2018144932A (en) * | 2017-03-03 | 2018-09-20 | コベルコ建機株式会社 | Crane information presentation system and crane |
| JP2019094196A (en) * | 2017-11-27 | 2019-06-20 | 株式会社タダノ | boom |
| WO2020246577A1 (en) * | 2019-06-07 | 2020-12-10 | 株式会社タダノ | Telescoping boom and work machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5248256U (en) * | 1975-10-03 | 1977-04-06 | ||
| JPS5332548A (en) * | 1976-09-04 | 1978-03-27 | Nippon Guroobu Kk | Extendable boom reaction support mechanism |
| JPS5830683U (en) * | 1981-08-19 | 1983-02-28 | セイレイ工業株式会社 | Low surface pressure sliding body |
| JPS6226384U (en) * | 1985-07-31 | 1987-02-18 | ||
| JPH0940380A (en) * | 1995-07-28 | 1997-02-10 | Aichi Corp | Polygonal boom |
-
2010
- 2010-12-13 JP JP2010276602A patent/JP5759711B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5248256U (en) * | 1975-10-03 | 1977-04-06 | ||
| JPS5332548A (en) * | 1976-09-04 | 1978-03-27 | Nippon Guroobu Kk | Extendable boom reaction support mechanism |
| JPS5830683U (en) * | 1981-08-19 | 1983-02-28 | セイレイ工業株式会社 | Low surface pressure sliding body |
| JPS6226384U (en) * | 1985-07-31 | 1987-02-18 | ||
| JPH0940380A (en) * | 1995-07-28 | 1997-02-10 | Aichi Corp | Polygonal boom |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241663A (en) * | 2013-05-07 | 2013-08-14 | 三一帕尔菲格特种车辆装备有限公司 | Crane, and telescopic arm and knuckle arm thereof |
| JP6165930B1 (en) * | 2016-06-06 | 2017-07-19 | 東芝エレベータ株式会社 | Slide mechanism |
| JP2017218256A (en) * | 2016-06-06 | 2017-12-14 | 東芝エレベータ株式会社 | Slide mechanism |
| JP2018144932A (en) * | 2017-03-03 | 2018-09-20 | コベルコ建機株式会社 | Crane information presentation system and crane |
| JP2019094196A (en) * | 2017-11-27 | 2019-06-20 | 株式会社タダノ | boom |
| WO2020246577A1 (en) * | 2019-06-07 | 2020-12-10 | 株式会社タダノ | Telescoping boom and work machine |
| JPWO2020246577A1 (en) * | 2019-06-07 | 2020-12-10 | ||
| JP7380686B2 (en) | 2019-06-07 | 2023-11-15 | 株式会社タダノ | Telescopic boom and work equipment |
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| JP5759711B2 (en) | 2015-08-05 |
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