JP4444106B2 - Excavator for hydraulic power shovel - Google Patents

Excavator for hydraulic power shovel Download PDF

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Publication number
JP4444106B2
JP4444106B2 JP2004528550A JP2004528550A JP4444106B2 JP 4444106 B2 JP4444106 B2 JP 4444106B2 JP 2004528550 A JP2004528550 A JP 2004528550A JP 2004528550 A JP2004528550 A JP 2004528550A JP 4444106 B2 JP4444106 B2 JP 4444106B2
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blade
tool
blades
web
tool according
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JP2005533950A (en
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マルセル、モラン
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KLAC Industrie SAS
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KLAC Industrie SAS
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/025—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with scraper-buckets, dippers or shovels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Shovels (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Road Repair (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The invention concerns a tool designed to be fixed at the end of the arm (4) of a shovel, characterized in that it consists of a curvilinear blade (1) formed by a portion of a straight cylindrical surface whereof the generators extend parallel to the axis of rotation of said tool on the arm.

Description

本発明は、油圧パワーショベルの先端に連結される型式の掘削工具に関するものである。   The present invention relates to a type of excavation tool connected to the tip of a hydraulic power shovel.

技術の現状では、掘るべき溝の幅に見合った寸法のスコップを使用している。   The current state of the art uses scoops that are sized according to the width of the trench to be dug.

しかし乍ら、土がスコップの底と側壁にこびり付いてしまい、浚（さら）うことに関しては、このスコップには問題があった。掻き出しパレットを用いることも行われてきたが、スコップのコストを増大させることに加えて、粘土質の土壌では満足のいくものではないことを経験が示している。   However, there was a problem with this scoop when it was stuck to the bottom and side walls of the scoop, and when it was drunk. The use of scraped pallets has also been used, but experience has shown that in addition to increasing the cost of scoops, clay soils are not satisfactory.

これらの難点を解消する本発明は、掘削工具を湾曲刃で構成すると共に、ウェブの後面で一体となって、ほぼ垂直に通常の手段でパワーショベルのアームに連結されることで注目に値する。   The present invention, which eliminates these difficulties, is notable because the excavation tool is formed of a curved blade, and is integrated with the rear surface of the web and connected to the arm of the excavator by a normal means substantially vertically.

この刃は、パワーショベルのアームにおける工具の関節軸に対して母線が平行に延在する直円柱面の一部によって形成される。   This blade is formed by a part of a right cylindrical surface in which a generatrix extends in parallel with a joint axis of a tool in an arm of a power shovel.

本発明の特徴によれば、土と工具の接触を少なくするために、湾曲刃は開口を呈している。   According to a feature of the present invention, the curved blade has an opening to reduce contact between the soil and the tool.

３０センチメートル程度の幅で溝掘りを行いながら１メートルの深さまで突き進むことができるスコップを製作することは、殆ど不可能であることも経験が示している。実際のところ、この深さまで達するためには極めて長尺なスコップを製作しなければならないし、比較的脆弱な土の塊では側板の表面も大きくなる。摩擦に起因する応力は著しく、スコップによる土の搬出は殆ど不可能になる。   Experience has shown that it is almost impossible to make a scoop that can pierce to a depth of 1 meter while grooving at a width of about 30 centimeters. In fact, in order to reach this depth, very long scoops must be made, and the surface of the side plate also becomes large in relatively fragile soil masses. The stress due to friction is significant, and it is almost impossible to carry out the soil with a scoop.

米国特許第３０３２９００号には、同心円状の複数の刃からなる工具が開示されているが、これらの刃は一端が底部に、領域の１つが工具の中央断面に沿って延在するウェブに連結されたものである。   U.S. Pat. No. 30,32900 discloses a tool consisting of a plurality of concentric blades, which are connected to a web with one end at the bottom and one of the regions extending along the central section of the tool. It has been done.

この掘削工具は、土が底とウェブの両側壁にこびり付いてしまうため満足を与えない。   This drilling tool is unsatisfactory because the soil will stick to the bottom and both side walls of the web.

これらの難点を緩和する本発明の工具は、複数の湾曲刃を有し、隣接する２枚の刃の下端部を離間する間隔が、前記刃の上端部を離間する間隔よりも大きくなるように、湾曲刃は角度を変位して配置される点で注目に値する。   The tool of the present invention that alleviates these difficulties has a plurality of curved blades, and the interval separating the lower end portions of two adjacent blades is larger than the interval separating the upper end portions of the blades. The curved blade is noteworthy in that it is arranged at a different angle.

パワーショベルのアームに連結した工具の関節軸と、刃の各々下端部を離間する間隔は、先頭の刃から後方の刃にいくに従って増大し、先頭の刃が最初に地中へ入り込む刃である。   The distance between the joint shaft of the tool connected to the arm of the power shovel and the lower end of each blade increases as the leading blade moves from the leading blade to the trailing blade, and the leading blade enters the ground first. .

本発明のその他の特徴は、参考までに実施例を示す添付の図面に沿った以下の説明から一層明白となるであろう。   Other features of the invention will become more apparent from the following description, taken in conjunction with the accompanying drawings, illustrating by way of example embodiments.

図面を参照し且つ実施例によれば、本発明の工具は背後に配置した中央のウェブ２によって支持される湾曲刃１で構成され、シャフト５によってパワーショベルのアーム４の先端に工具を固定するため、ウェブは常用のフレーム３と一体になっていることが分かる。周知の手法で、そのピストン棒が符号６で示されたジャッキは、シャフト５の軸を中心として工具を回動させることができる。   Referring to the drawings and according to an embodiment, the tool of the present invention is composed of a curved blade 1 supported by a central web 2 arranged behind, and a shaft 5 fixes the tool to the tip of an arm 4 of a power shovel. Therefore, it can be seen that the web is integrated with the regular frame 3. The jack whose piston rod is indicated by reference numeral 6 can rotate the tool about the axis of the shaft 5 by a known method.

刃１は直円柱面の一部により構成されるが、この直円柱の母線はシャフト５の軸と平行に延在する。   The blade 1 is constituted by a part of a right circular cylinder surface, and the generatrix of the right circular cylinder extends in parallel with the axis of the shaft 5.

フランス特許第２７８５９５１号に開示されるように、工具１−２の固定は迅速なファスニングを介して行うことができる。   As disclosed in French Patent No. 2785951, the fixing of the tool 1-2 can be performed via rapid fastening.

刃１は、土との接触表面を小さくするための開口７を呈することが可能である。   The blade 1 can present an opening 7 for reducing the contact surface with the soil.

実施例（図３）では、工具が複数枚の刃１を備え、隣接する２枚の刃の上端部を離間する間隔ｄが、これらの下端部を離間する間隔Ｄよりも小さくなるように、刃は角度を変位して配置される。   In the example (FIG. 3), the tool includes a plurality of blades 1, and the distance d separating the upper ends of two adjacent blades is smaller than the distance D separating these lower ends. The blades are arranged at different angles.

刃の背後に延在するウェブ２の表面の一部は微々たるものであることに注目すべきである。   It should be noted that the part of the surface of the web 2 that extends behind the blade is insignificant.

刃１は全て同一であるが、幅は掘るべき溝や堀の幅に対応したものが好ましい。   The blades 1 are all the same, but preferably have a width corresponding to the width of the groove or trench to be dug.

刃１は角度を変位させてあり、シャフト５の軸と対応する刃の先端を離間する間隔は、地面Ｓを掘るべく刃が地中に食い込んでいくときの工具の回動方向（図面では反時計方向）に従って大きくなっている。   The angle of the blade 1 is displaced, and the interval of separating the tip of the blade corresponding to the axis of the shaft 5 is the rotation direction of the tool when the blade bites into the ground to dig the ground S (in FIG. (Clockwise) increases.

図８は工具が溝から外に出た状態を示している。砂を多く含んだ土壌である場合には、掘削した土砂の相当量が両側からこぼれ落ちてしまう可能性がある。このような場合、図９に示したような側板１ａが各刃に設けられるが、工具の地面への喰い込みや掘り起こした土砂の排出を阻害する時宜を得ない摩擦を引き起こさないように、これらの側板表面は極端に小さくする。   FIG. 8 shows a state where the tool has come out of the groove. If the soil contains a lot of sand, a considerable amount of excavated soil may spill from both sides. In such a case, a side plate 1a as shown in FIG. 9 is provided on each blade, but these do not cause timely friction that inhibits the biting of the tool into the ground or the excavation of the excavated earth and sand. Make the side plate surface extremely small.

本発明による他の特徴によれば、刃は取り外し可能である。   According to another feature according to the invention, the blade is removable.

そのため当該実施例においては、刃１を取り付けるためのウェブ２にフランジ部８が設けられていて、この部分にそれぞれ対応する刃が適当な工具を用いて固定されるが、フランジ部は、刃の凸面とぴったり適合するための凹面が形成されており、刃の凸面は、円形導線（準線）直円柱面と一致するものが好ましい。   Therefore, in the said Example, the flange part 8 is provided in the web 2 for attaching the blade 1, and the blade corresponding to each of this part is fixed using a suitable tool, A concave surface is formed to fit the convex surface exactly, and the convex surface of the blade is preferably coincident with a circular conducting wire (quasi-wire) right cylindrical surface.

図１０から図１３に示されるように、刃の各々にはウェブ２に固定するための手段が設けられている。この実施例では、各刃９の凸面部には、その下端部近傍において接続バー１０を具備させる一方、上端にはヨーク１１が配設されており、工具のウェブ２はこのヨークの間に挿入可能である。   As shown in FIGS. 10 to 13, each blade is provided with means for fixing to the web 2. In this embodiment, the convex portion of each blade 9 is provided with a connecting bar 10 in the vicinity of the lower end portion thereof, while a yoke 11 is disposed at the upper end portion, and the tool web 2 is inserted between the yokes. Is possible.

刃９は、止めピン１２によって図１０に示した位置に保持されるが、そのためウェブ２には孔１３が形成されている。刃を取り付けるには先ずウェブにこれを当てがい、次に接続バーがフランジ部の先端より先に位置するよう滑らせる。そして今度は、刃をフランジ部に押し当てながら上方に向けて滑らせ、接続バーがフランジ部の先端によって貫通されるまで移動させ、定位置に収まったところで最後に止めピンを装着して全体を維持する。取り外しは逆の手順によって行われる。   The blade 9 is held at the position shown in FIG. 10 by the stop pin 12, and for this purpose, a hole 13 is formed in the web 2. To attach the blade, first apply it to the web, and then slide it so that the connection bar is positioned ahead of the tip of the flange. Next, slide the blade upward while pressing the blade against the flange, move it until the connecting bar is penetrated by the tip of the flange, and when it is in the fixed position, attach the stop pin at the end and attach the whole. maintain. Removal is performed by the reverse procedure.

同一工具の複数の刃は、幅も長さも異なるものであっても構わないことは注目に値する。   It is worth noting that the plurality of blades of the same tool may be different in width and length.

図１４には図１に示した実施例とは別の実施例を示してあるが、１枚刃の工具から図１６に示されるような２枚刃の工具を完成するために、この実施例ではウェブ２ａが、刃１５のウェブ１４（図１５）と合致して協働する。   FIG. 14 shows an embodiment different from the embodiment shown in FIG. 1, but this embodiment is used to complete a two-blade tool as shown in FIG. 16 from a single-blade tool. The web 2a then cooperates with the web 14 of the blade 15 (FIG. 15).

図１５に示した刃を取り付けるためには、例えば２枚のプレート１６を用いるが、これらのプレートはウェブ２と１４の両側から配置されてウェブを挟持し、図では符号１７にて示される軸箇所においてボルトで保持される。注目に値すべきは、ウェブ１４を、第３の刃を固定させることが出来るような形状とすることも可能である。   In order to attach the blade shown in FIG. 15, for example, two plates 16 are used, and these plates are arranged from both sides of the webs 2 and 14 to sandwich the web. It is held in place by bolts. It should be noted that the web 14 can also be shaped to allow the third blade to be fixed.

説明した図示の実施例では、刃は円導線（準線）柱面の一部分である。   In the illustrated embodiment described, the blade is part of a circular (quasi-wire) column surface.

本発明の範囲で、その導線（準線）が連続した曲線態様のみならず、例えば円弧として見做すことが出来るようなものであれば折れ線の態様を呈する湾曲刃を完成することが可能である。   Within the scope of the present invention, it is possible to complete a curved blade exhibiting a polygonal line as long as the conductor (quasi-wire) can be regarded as a circular arc as well as a continuous curved line. is there.

同様にして、本発明による湾曲刃は、平坦な金属板を同一方向に折り曲げ加工して製造することも可能であるが、この場合、いくつかの折り曲げ部は、アームへの工具の関節軸と共に比較的僅かな角度を形成する。   Similarly, the curved blade according to the present invention can be manufactured by bending a flat metal plate in the same direction, and in this case, some of the bent portions together with the joint axis of the tool to the arm. A relatively slight angle is formed.

本発明による工具の正面図である。It is a front view of the tool by this invention. 図１に示した工具の平面図である。It is a top view of the tool shown in FIG. 本発明による工具の他の実施例を示す正面図である。It is a front view which shows the other Example of the tool by this invention. 図３に示した工具の平面図である。FIG. 4 is a plan view of the tool shown in FIG. 3. 本発明による工具の使用状態を図３と同様に示す図である。It is a figure which shows the use condition of the tool by this invention similarly to FIG. 本発明による工具の使用状態を図３と同様に示す図である。It is a figure which shows the use condition of the tool by this invention similarly to FIG. 本発明による工具の使用状態を図３と同様に示す図である。It is a figure which shows the use condition of the tool by this invention similarly to FIG. 本発明による工具の使用状態を図３と同様に示す図である。It is a figure which shows the use condition of the tool by this invention similarly to FIG. 他の実施例を図８と同様に示す図である。It is a figure which shows another Example similarly to FIG. 別の実施例を図３と同様に示す図である。It is a figure which shows another Example similarly to FIG. 図１０における線ＩＸ−ＩＸに沿った断面図である。It is sectional drawing along line IX-IX in FIG. 図１０の実施例で使用される刃を示す正面図である。It is a front view which shows the blade used in the Example of FIG. 図１２に示したものの平面図である。It is a top view of what was shown in FIG. １枚刃の工具を複数枚の工具に変える可能性を示す正面図である。It is a front view which shows the possibility of changing the tool of 1 blade to several tools. １枚刃の工具を複数枚の工具に変える可能性を示す正面図である。It is a front view which shows the possibility of changing the tool of 1 blade to several tools. １枚刃の工具を複数枚の工具に変える可能性を示す正面図である。It is a front view which shows the possibility of changing the tool of 1 blade to several tools.

Claims (6)

油圧パワーショベルのアーム（４）の先端に取り付けられる工具において、
前記工具は複数の湾曲した刃（１）を有し、これら刃（１）は、アームに取り付けられる前記工具の回動軸に対して母線が平行な直円柱面の一部によって構成されるとともに、隣接する２枚の刃（１）の上端部の間隔（ｄ）が、前記隣接する２枚の刃の下端部の間隔（Ｄ）よりも小さくなるように異なる角度で設けられていることを特徴とする油圧パワーショベル用掘削工具。In the tool attached to the tip of the arm (4) of the hydraulic excavator,
The tool has a blade (1) in which a plurality of curved, these blades (1), together with the generatrix with respect to rotation axis of the tool attached to the arm is constituted by a portion of the parallel straight cylindrical surface The interval (d) between the upper ends of the two adjacent blades (1) is provided at different angles so as to be smaller than the interval (D) between the lower ends of the two adjacent blades. A drilling tool for hydraulic excavators. 前記刃（１）は開口（７）を有することを特徴とする請求項１に記載の工具。Tool according to claim 1 wherein the blade (1) is characterized in that it comprises an opening (7). 工具の関節軸線（５）と各刃（１）の下端部との間隔は、先頭の刃から後方の刃にいくに従って大きくなっており、先頭の刃は最初に地中へ入り込む刃であることを特徴とする請求項１または２に記載の工具。 The distance between the joint axis (5) of the tool and the lower end of each blade (1) increases from the first blade to the rear blade, and the first blade is the blade that enters the ground first. The tool according to claim 1 or 2, wherein 一つまたは複数の刃（１）が、取り外し可能であることを特徴とする請求項１から３のうちのいずれか一項に記載の工具。A tool according to any one of claims 1 to 3, characterized in that one or more blades (1) are removable. 少なくとも１本のフランジ（８）を有するウエブ（２）をさらに有し、前記フランジの凹面は取り外し可能な刃（１）の凸面と適合すると共に、前記刃には前記刃をフランジに取り付けるための手段が設けられていることを特徴とする請求項３に記載の工具。 And further comprising a web (2) having at least one flange (8), the concave surface of the flange being adapted to the convex surface of the removable blade (1) , the blade being adapted for attaching the blade to the flange 4. Tool according to claim 3, characterized in that means are provided . 複数の刃のうちの１つの刃（１５）が設けられているウエブ（１４）が、他の１つの刃（１）が設けられているウエブ（２ａ）から取り外しできることを特徴とする請求項１から３のうちのいずれか一項に記載の工具。 Claim webs one blade of the plurality of blades (15) is provided (14), characterized in that the removable from the web (2a) to the other one blade (1) is provided with 1 The tool according to any one of 3 to 3 .
JP2004528550A 2002-07-23 2003-06-12 Excavator for hydraulic power shovel Expired - Fee Related JP4444106B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0209305A FR2842841B1 (en) 2002-07-23 2002-07-23 EXCAVATION TOOL FOR HYDRAULIC EXCAVATOR
FR0303680A FR2842842A1 (en) 2002-07-23 2003-03-26 EXCAVATION TOOL FOR HYDRAULIC EXCAVATOR
PCT/FR2003/001758 WO2004016864A1 (en) 2002-07-23 2003-06-12 Excavating tool for hydraulic shovel

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JP2005533950A JP2005533950A (en) 2005-11-10
JP4444106B2 true JP4444106B2 (en) 2010-03-31

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JP (1) JP4444106B2 (en)
AT (1) ATE484632T1 (en)
AU (1) AU2003253067A1 (en)
CA (1) CA2492937C (en)
DE (1) DE60334553D1 (en)
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ATE484632T1 (en) 2010-10-15
WO2004016864A1 (en) 2004-02-26
CA2492937C (en) 2008-11-18
EP1546471A1 (en) 2005-06-29
AU2003253067A1 (en) 2004-03-03
FR2842842A1 (en) 2004-01-30
JP2005533950A (en) 2005-11-10
DE60334553D1 (en) 2010-11-25
CA2492937A1 (en) 2004-02-26
EP1546471B1 (en) 2010-10-13

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