JP2011185015A - Hanging metal fitting of hydraulic shovel - Google Patents

Hanging metal fitting of hydraulic shovel Download PDF

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JP2011185015A
JP2011185015A JP2010054615A JP2010054615A JP2011185015A JP 2011185015 A JP2011185015 A JP 2011185015A JP 2010054615 A JP2010054615 A JP 2010054615A JP 2010054615 A JP2010054615 A JP 2010054615A JP 2011185015 A JP2011185015 A JP 2011185015A
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pin
hanging
hole
boom
suspension
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JP5406761B2 (en
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Takashi Yoneda
敬 米田
Shinya Nozaki
晋也 野▲崎▼
Takahiro Kawahito
隆広 川人
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Caterpillar Japan Ltd
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Caterpillar Japan Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent a hanging metal fitting, which is rotatably mounted to a pin provided in a boom of a hydraulic shovel and hangs a wire in a hanging operation, from rotating around the pin due to machine vibration or the like, and to facilitate hanging the wire through a hanging hole. <P>SOLUTION: The hanging metal fitting 20 includes the hanging hole 24 formed on one side sandwiching a pin hole 22 and hanging the wire, and a weight part 26 formed on the other side. The mass of the weight part 26 side sandwiching the pin hole 22 is made larger than that of the hanging hole 24 side, and the weight part 26 side is positioned vertically below the pin 28 by the mass difference in a state where the pin hole 22 is rotatably mounted to the pin 28 projecting from the boom 14 of the hydraulic shovel. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、油圧ショベルを、ワイヤを掛けて吊り上げる際に用いられるブームの部分に備えられる吊り金具に関する。   The present invention relates to a hanging bracket provided on a boom portion used when a hydraulic excavator is hung by hanging a wire.

クレーンによって機体を吊り上げ搬送される油圧ショベルの典型例は、吊り上げる際にワイヤを掛けるのに用いる吊り金具を、機体前部の作業腕であるブームの部分および機体後部のカウンタウエイトの部分に備えている。   A typical example of a hydraulic excavator that lifts and transports the fuselage by a crane is provided with hanging brackets that are used to hang wires when lifting, on the boom part that is the work arm at the front of the fuselage and the counterweight part at the rear of the fuselage. Yes.

ブームの部分に備える吊り金具の代表例（例えば、特許文献１参照）は、ブームを揺動作動させるブームシリンダが取り付けられるブラケットに通したピンの両端部に、あるいはブームの他の部位に設けたブラケットに通したピンの両端部に、回動を自在に取り付けられ先端にワイヤを掛ける吊り穴を有している。この吊り金具は、ピンに回動を自在に取り付けられているので、ワイヤを掛けクレーンで吊ったときに常にワイヤの引張方向を向くことができるようになっている。   A typical example of a hanging bracket provided in a boom portion (see, for example, Patent Document 1) is provided at both ends of a pin that passes through a bracket to which a boom cylinder for swinging the boom is attached, or at another part of the boom. At both ends of the pin that passes through the bracket, there is a suspension hole that is freely pivoted and that hangs a wire at the tip. Since this suspension fitting is attached to a pin so as to be freely rotatable, when the wire is hung by a crane, it can always face the direction of pulling the wire.

特開平６−２５７１７９号公報（図１−図４）JP-A-6-257179 (FIGS. 1 to 4)

上述したとおりの形態の油圧ショベルの吊り金具には、次のとおりの解決すべき課題がある。   The suspension bracket of a hydraulic excavator having the form described above has the following problems to be solved.

すなわち、ピンに回動自在に取り付けた吊り金具は、吊り作業を行わないワイヤを掛けないときには自重によって下方に垂れている。しかしながらこの吊り金具は、ブームシリンダを伸縮作動させたときの共回りや機体の振動などによって、ピンを中心に自在に回動し、シリンダに、あるいは周囲の部材に干渉し、それらを損傷させ、あるいは吊り金具自体が損傷される可能性がある。干渉を防止するために、ピンを長くし吊り金具がシリンダあるいは周囲の部材と干渉しないように外側にすると、ピンに作用する曲げモーメントが大きくなり、ピンの強度を上げるためにピンを太くしなければならない。   That is, the hanging metal fitting pivotally attached to the pin hangs downward by its own weight when a wire that does not perform the hanging work is not hung. However, this hanging bracket rotates freely around the pin due to co-rotation when the boom cylinder is expanded and contracted, vibration of the fuselage, etc., interferes with the cylinder or surrounding members, damages them, Alternatively, the hanging bracket itself may be damaged. In order to prevent interference, if the pin is lengthened and the hanger is on the outside so that it does not interfere with the cylinder or surrounding members, the bending moment acting on the pin will increase, and the pin must be thickened to increase the strength of the pin. I must.

さらに、吊り金具はピンの下方に垂れているので、吊り作業においてワイヤを吊り穴に掛けるとき、すなわちシャックル、フック等を吊り穴に取り付けるときには、その都度吊り金具を回動させて吊り穴を上方に位置付ける面倒がある。   In addition, since the hanging bracket hangs below the pin, when hanging a wire on the hanging hole in hanging work, that is, when attaching a shackle, hook, etc., to the hanging hole, the hanging bracket is rotated each time to move the hanging hole upward. There is a hassle to position.

本発明は上記事実に鑑みてなされたもので、その技術的課題は、油圧ショベルのブームに設けたピンに回動を自在に取り付けられ吊り作業においてワイヤを掛ける吊り金具が、機体振動などによってピンを中心に回動するのを防止し、さらに吊り穴へのワイヤ掛けを容易にできるようにした、油圧ショベルの吊り金具を提供することである。   The present invention has been made in view of the above-mentioned facts, and its technical problem is that a hanging bracket that is freely attached to a pin provided on a boom of a hydraulic excavator and is used to hang a wire in a hanging operation is caused by a vibration of the fuselage. It is an object to provide a hanging bracket for a hydraulic excavator that can be prevented from rotating around the center and that can be easily hooked into a hanging hole.

本発明によれば上記技術的課題を解決する油圧ショベルの吊り金具として、ピン穴を挟んだ一側に形成されたワイヤを掛ける吊り穴と、他側に形成された錘部とを備え、該ピン穴を挟んだ錘部側の質量を吊り穴側よりも大きく形成し、該ピン穴を油圧ショベルのブームから突出したピンに回動自在に取り付けた状態において、該錘部側が上記質量の違いによってピンの鉛直方向下方に位置付けられる、ことを特徴とする油圧ショベルの吊り金具が提供される。   According to the present invention, as a suspension metal fitting for a hydraulic excavator that solves the above technical problem, a suspension hole for hanging a wire formed on one side sandwiching a pin hole, and a weight portion formed on the other side, In the state where the mass on the weight side across the pin hole is formed larger than that on the suspension hole side and the pin hole is rotatably attached to the pin protruding from the boom of the excavator, the weight side is the difference in the mass The suspension bracket for a hydraulic excavator is provided, which is positioned vertically below the pin.

好適には、該吊り金具の取り付けられるピンは、該ブームを揺動作動させるブームシリンダの一端が取り付けられたシリンダ取付ピンである。   Preferably, the pin to which the suspension fitting is attached is a cylinder attachment pin to which one end of a boom cylinder for swinging the boom is attached.

本発明に従って構成された油圧ショベルの吊り金具は、油圧ショベルのブームのピンに回動自在に取り付けるピン穴の一側に吊り穴を他側に錘部を備え、ピン穴を挟んだ錘部側の質量が吊り穴側よりも大きく形成されているので、吊り金具は、錘部側をピンの鉛直方向下方にして「起上り小法師」のようにピンに取り付けられる。したがって、吊り金具が機体振動などによってピンを中心に回動するのを防止でき、さらに吊り穴は鉛直方向の上方に位置付けられるのでワイヤ掛けを容易に行うことができる。   The suspension bracket of a hydraulic excavator constructed in accordance with the present invention has a suspension hole on one side of a pin hole that is pivotably attached to a boom pin of the hydraulic excavator, and a weight portion side sandwiching the pin hole. Is larger than the suspension hole side, so that the suspension metal fitting is attached to the pin like a “rising gaiter” with the weight portion side vertically below the pin. Therefore, the suspension bracket can be prevented from rotating around the pin due to vibration of the airframe, and the suspension hole is positioned upward in the vertical direction, so that the wire can be easily hooked.

本発明に従って構成された油圧ショベルの吊り金具をブームのピンに取り付けた状態で示した（ａ）は側面図、（ｂ）は断面図。FIG. 2A is a side view and FIG. 2B is a cross-sectional view illustrating a state in which a suspension bracket of a hydraulic excavator constructed according to the present invention is attached to a boom pin. 図１（ａ）のブームシリンダを一杯に縮めた状態の図。The figure of the state which shrunk the boom cylinder of Fig.1 (a) fully. 油圧ショベルをワイヤによって吊った状態の典型例を示した図。The figure which showed the typical example of the state which suspended the hydraulic shovel with the wire.

以下、本発明に従って構成された油圧ショベルの吊り金具について、好適実施形態を図示している添付図面を参照して、さらに詳細に説明する。   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a hydraulic excavator suspension fitting constructed according to the present invention will be described in more detail with reference to the accompanying drawings illustrating preferred embodiments.

図３を参照して油圧ショベルをワイヤによって吊った状態の典型例について説明する。油圧ショベル２は、下部走行体４の上に上部旋回体６が取り付けられ、上部旋回体６には前方に作業腕装置８、中央に運転室１０、後方にカウンタウエイト１２が取り付けられている。作業腕装置８は、上部旋回体６に上下方向に揺動自在に取り付けられたブーム１４およびブーム１４と上部旋回体６の間に取り付けられブーム１４を上下方向に揺動させるブームシリンダ１６を、紙面に直角方向の両側に一対備えている。   A typical example of a state in which a hydraulic excavator is suspended by a wire will be described with reference to FIG. In the hydraulic excavator 2, an upper swing body 6 is attached on the lower traveling body 4, and a work arm device 8 is attached to the upper swing body 6, a cab 10 is attached to the center, and a counterweight 12 is attached to the rear. The work arm device 8 includes a boom 14 attached to the upper swing body 6 so as to be swingable in the vertical direction, and a boom cylinder 16 attached between the boom 14 and the upper swing body 6 and swinging the boom 14 in the vertical direction. A pair is provided on both sides of the sheet at right angles.

ブーム１４の、一対のブームシリンダ１６の一端が取り付けられる部分Ｘには、ワイヤＷを掛ける吊り金具２０（図１）が、ブーム１４の両側にそれぞれ備えられている。カウンタウエイト１２の上面部分Ｙには、ワイヤＷを掛ける吊り金具が一対備えられている。油圧ショベル２は、ブーム１４のＸ部分の吊り金具およびカウンタウエイト１２のＹ部分の吊り金具それぞれに掛けたワイヤＷがクレーンのフックＺに掛けられ吊り下げられる。   At portions X of the boom 14 to which one end of the pair of boom cylinders 16 is attached, hanging brackets 20 (FIG. 1) for hanging the wires W are provided on both sides of the boom 14. The upper surface portion Y of the counterweight 12 is provided with a pair of hanging hardware for hanging the wire W. The hydraulic excavator 2 is hung by hanging the wire W hung on the hanging bracket of the X portion of the boom 14 and the hanging bracket of the Y portion of the counterweight 12 on the hook Z of the crane.

吊り金具２０について図１を参照して説明する。吊り金具２０は、長さＬ幅Ｈ厚さＴ（一部２Ｔ）の矩形板状に、鋼によって形成されている。長さＬの中間Ｌ／２にピン穴２２が形成され、ピン穴２２を挟んだ一側にワイヤを掛ける吊り穴２４、他側に厚さ２Ｔの錘部２６が形成され、ピン穴２２を挟んだ錘部２６側の質量が、吊り穴２４側よりも大きく形成されている。   The hanging metal fitting 20 will be described with reference to FIG. The hanging metal fitting 20 is formed of steel in a rectangular plate shape having a length L width H thickness T (part 2T). A pin hole 22 is formed in the middle L / 2 of the length L, a suspension hole 24 for hanging a wire on one side across the pin hole 22, and a weight part 26 having a thickness of 2T is formed on the other side. The mass of the sandwiched weight portion 26 side is formed larger than that of the suspension hole 24 side.

吊り穴２４は、吊りワイヤＷのシャックル、フックなどを掛ける所定の大きさに形成されている。吊り金具２０の吊り穴２４側の端は、吊り穴２４を中心に半径Ｈ／２のＲで円弧に形成されている。ピン穴２２はブームシリンダ１６の一端、ロッド端が取り付けられるシリンダ取付ピン２８に回動自在に嵌合する大きさに形成されている。錘部２６側の厚さ２Ｔの端は、半径Ｒの円弧に形成され、半径Ｒ厚さＴの円板が片面に付加されて形成されている。   The suspension hole 24 is formed in a predetermined size for hanging a shackle, a hook or the like of the suspension wire W. The end of the suspension fitting 20 on the side of the suspension hole 24 is formed in an arc with a radius H / 2 around the suspension hole 24. The pin hole 22 is formed in a size that can be rotatably fitted to a cylinder mounting pin 28 to which one end of the boom cylinder 16 and the rod end are mounted. The end of the thickness 2T on the weight part 26 side is formed in an arc having a radius R, and a disk having a radius R and a thickness T is added to one side.

吊り穴２４、ピン穴２２、錘部２６の円板の中心は一直線上に位置付けられている。吊り金具２０は、鋼板を溶接して、あるいは鍛造によって、一体に形成されている。   The center of the disk of the suspension hole 24, the pin hole 22, and the weight part 26 is positioned on a straight line. The hanging metal fitting 20 is integrally formed by welding a steel plate or by forging.

ブーム１４には、一対のブームシリンダ１６、１６のロッド端側をそれぞれ取り付けるピンである一対のシリンダ取付ピン２８，２８が側方に突出し、同一軸線上に備えられている。吊り金具２０は、このシリンダ取付ピン２８にピン穴２２が、ブームシリンダ１６のロッド端を取り付けた外側に嵌合されている。ピン２８の突出端部には、吊り金具２０の抜け止め用のリング３０が、リング３０およびピン２８を貫通したボルト３２によって固定されている。   The boom 14 is provided with a pair of cylinder mounting pins 28 and 28, which are pins for mounting the rod end sides of the pair of boom cylinders 16 and 16, protruding sideways and provided on the same axis. In the suspension fitting 20, a pin hole 22 is fitted to the cylinder attachment pin 28 on the outside where the rod end of the boom cylinder 16 is attached. A ring 30 for preventing the hanging metal fitting 20 from coming off is fixed to a protruding end portion of the pin 28 by a bolt 32 penetrating the ring 30 and the pin 28.

図１を参照して、上述したとおりの油圧ショベルの吊り金具２０の作用・効果について説明する。   With reference to FIG. 1, the operation and effect of the suspension bracket 20 of the hydraulic excavator as described above will be described.

油圧ショベル２の吊り金具２０は、ブーム１４のピン２８に回動自在に取り付けるピン穴２２の一側に吊り穴２４を、他側に錘部２６を備え、ピン穴２２を挟んだ錘部２６側の質量が吊り穴２４側よりも大きく形成されているので、錘部２６側を常にピン２８の鉛直方向（矢印Ｖ）の下方にして「起上り小法師」のようにピン２８に取り付けられる。したがって、吊り金具２０の吊り穴２４にワイヤを掛けないときの、吊り金具２０が機体振動などによってピン２８を中心に回動するのを防止できるとともに、吊り穴２４は常に鉛直方向Ｖの上方に位置付けられるのでワイヤ掛けを容易に行うことができる。   The suspension metal fitting 20 of the excavator 2 includes a suspension hole 24 on one side of a pin hole 22 that is rotatably attached to a pin 28 of the boom 14, and a weight part 26 on the other side, and the weight part 26 sandwiching the pin hole 22. Since the weight on the side is larger than that on the suspension hole 24 side, the weight 26 side is always below the vertical direction of the pin 28 (arrow V), and it is attached to the pin 28 like a “rising gaiter”. . Therefore, when the wire is not hung on the suspension hole 24 of the suspension bracket 20, it is possible to prevent the suspension bracket 20 from rotating around the pin 28 due to airframe vibration or the like, and the suspension hole 24 is always above the vertical direction V. Since it is positioned, it is easy to wire.

図１とともに図３を参照してさらに説明する。ブームシリンダ１６を一杯に縮め、ブームシリンダ１６と吊り金具２０の位置が相対的に接近しても、吊り金具２０は常に鉛直の方向Ｖを向いているので、吊り金具２０がブームシリンダ１６と干渉することがない。   Further description will be given with reference to FIG. 3 together with FIG. Even when the boom cylinder 16 is fully retracted and the positions of the boom cylinder 16 and the hanging bracket 20 are relatively close to each other, the hanging bracket 20 always faces the vertical direction V, so that the hanging bracket 20 interferes with the boom cylinder 16. There is nothing to do.

また、吊り金具２０の取り付けられるピンを、ブーム１４を揺動作動させるブームシリンダ１６の一端が取り付けられたシリンダ取付ピン２８とすることにより、吊り金具２０を取り付けるためのピンを新規にブーム１４に設置する必要がなく、吊り金具１０を経済的に、低コストで、容易に設置することができる。   Further, the pin for attaching the hanging bracket 20 is a cylinder mounting pin 28 to which one end of the boom cylinder 16 for swinging the boom 14 is attached. There is no need to install, and the hanging bracket 10 can be easily installed economically at low cost.

以上、本発明を実施例に基づいて説明したが、本発明は上記の実施例に限定されるものではなく、例えば下記のように、本発明の範囲内においてさまざまな変形あるいは修正ができるものである。   The present invention has been described above based on the embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications or corrections can be made within the scope of the present invention, for example, as described below. is there.

本発明の実施例においては、吊り金具１０は、ブームシリンダ１６の一端が取り付けられたシリンダ取付ピン２８に取り付けられているが、ワイヤを掛ける部位などによってはブーム１４の他の位置に吊り金具１０取付用のピンを設けてもよい。   In the embodiment of the present invention, the suspension fitting 10 is attached to the cylinder attachment pin 28 to which one end of the boom cylinder 16 is attached. A mounting pin may be provided.

本発明の実施例においては、吊り金具１０は、長さＬ幅Ｈの矩形に形成され、吊り穴２４、ピン穴２２、錘部２６は一直線上に形成されているが、形状は矩形でなく穴等の配置は一直線上になくてもよい。   In the embodiment of the present invention, the hanging metal fitting 10 is formed in a rectangular shape having a length L and a width H, and the hanging hole 24, the pin hole 22, and the weight portion 26 are formed in a straight line, but the shape is not rectangular. The arrangement of holes and the like may not be on a straight line.

本発明の実施例においては、吊り穴２４部と錘部２６部はピン穴２２を挟んで同じ長さＬ／２の位置に対称に形成されているが、必ずしも対称でなくてもよい。   In the embodiment of the present invention, the suspension hole 24 part and the weight part 26 part are formed symmetrically at the same length L / 2 with the pin hole 22 in between, but they are not necessarily symmetrical.

２：油圧ショベル
１４：ブーム
１６：ブームシリンダ
２０：吊り金具
２２：ピン穴
２４：吊り穴
２６：錘部
２８：シリンダ取付ピン（ピン）
Ｗ：ワイヤ 2: Hydraulic excavator 14: Boom 16: Boom cylinder 20: Suspension bracket 22: Pin hole 24: Suspension hole 26: Weight part 28: Cylinder mounting pin (pin)
W: Wire

Claims (2)

ピン穴を挟んだ一側に形成されたワイヤを掛ける吊り穴と、他側に形成された錘部とを備え、
該ピン穴を挟んだ錘部側の質量を吊り穴側よりも大きく形成し、該ピン穴を油圧ショベルのブームから突出したピンに回動自在に取り付けた状態において、該錘部側が上記質量の違いによってピンの鉛直方向下方に位置付けられる、
ことを特徴とする油圧ショベルの吊り金具。 A hanging hole for hanging a wire formed on one side across the pin hole, and a weight portion formed on the other side,
In the state where the mass on the weight side across the pin hole is formed larger than that on the suspension hole side and the pin hole is rotatably attached to the pin protruding from the boom of the hydraulic excavator, Positioned vertically below the pin by the difference,
A hydraulic excavator hanging bracket characterized by that. 該吊り金具の取り付けられるピンが、
該ブームを揺動作動させるブームシリンダの一端が取り付けられたシリンダ取付ピンである、
ことを特徴とする請求項１記載の油圧ショベルの吊り金具。
The pin to which the hanging bracket is attached is
A cylinder mounting pin to which one end of a boom cylinder for swinging the boom is mounted;
The suspension bracket for a hydraulic excavator according to claim 1.
JP2010054615A 2010-03-11 2010-03-11 Hydraulic excavator hanging bracket Expired - Fee Related JP5406761B2 (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
JP2021025290A (en) * 2019-08-05 2021-02-22 住友重機械工業株式会社 Shovel and maintenance method for shovel
JP7487906B1 (en) 2023-09-27 2024-05-21 Ｇｏｌｄｅｎ通商株式会社 How to clean the ash bunker

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JPH031185U (en) * 1989-05-29 1991-01-08
JPH0362142U (en) * 1989-10-24 1991-06-18
JPH06257179A (en) * 1993-03-09 1994-09-13 Hitachi Constr Mach Co Ltd Hydraulic shovel
JP2002013163A (en) * 2000-06-28 2002-01-18 Komatsu Ltd Small revolution type excavation vehicle

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JPS60107082U (en) * 1983-12-26 1985-07-20 ヤンマーディーゼル株式会社 Construction machinery lifting equipment
JPH031185U (en) * 1989-05-29 1991-01-08
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JP2002013163A (en) * 2000-06-28 2002-01-18 Komatsu Ltd Small revolution type excavation vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021025290A (en) * 2019-08-05 2021-02-22 住友重機械工業株式会社 Shovel and maintenance method for shovel
JP7391563B2 (en) 2019-08-05 2023-12-05 住友重機械工業株式会社 Excavators and how to maintain them
JP7487906B1 (en) 2023-09-27 2024-05-21 Ｇｏｌｄｅｎ通商株式会社 How to clean the ash bunker

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