JPH11200420A - Counterweight of construction machine - Google Patents
Counterweight of construction machineInfo
- Publication number
- JPH11200420A JPH11200420A JP772998A JP772998A JPH11200420A JP H11200420 A JPH11200420 A JP H11200420A JP 772998 A JP772998 A JP 772998A JP 772998 A JP772998 A JP 772998A JP H11200420 A JPH11200420 A JP H11200420A
- Authority
- JP
- Japan
- Prior art keywords
- counterweight
- iron
- construction machine
- cement
- artificial aggregate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Component Parts Of Construction Machinery (AREA)
- Jib Cranes (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、油圧ショベル、
バックホー、クロラークレーン、トラッククレーン、オ
ールテレンクレーン等の建設機械のカウンタウエイトに
関するものであり、特に、カウンタウエイトに充填せら
れる重量物に関するものである。The present invention relates to a hydraulic excavator,
The present invention relates to counterweights for construction machines such as backhoes, crawler cranes, truck cranes, all terrain cranes, and the like, and more particularly to heavy loads to be filled in the counterweights.
【0002】[0002]
【従来の技術】従来の此種カウンタウエイトを図4に従
って説明する。同図に於て、カウンタウエイト1は鋼板
等から成る上面開放の枠体2と、該枠体2の上面を蓋装
する蓋体3と、該枠体2の背面に固設された背面体4と
を有し、該枠体2内には多量の鉄鋼石5,5…と、鉄屑
6,6…並びに砂7,7…とを目標重量になるように混
合し、それをセメント8にて固着して成る重量物9が充
填せられ、そして、前記蓋体3を蓋着して該カウンタウ
エイト1が構成される。2. Description of the Related Art A conventional counterweight of this type will be described with reference to FIG. In the figure, a counterweight 1 is a frame 2 made of a steel plate or the like and having an open top, a lid 3 for covering the upper surface of the frame 2, and a back body fixed to the back of the frame 2. , A large amount of iron ore 5, 5,..., Iron scraps 6, 6,... And sand 7, 7,. The counterweight 1 is formed by filling the weight 9 which is fixed by the above, and covering the lid 3.
【0003】[0003]
【発明が解決しようとする課題】上記カウンタウエイト
は枠体内に充填せらるべき重量物が多量の鉄鋼石及び鉄
屑並びに砂とを混合し、それをセメントにて固着して成
るのであるから、該重量物が目標重量を達成するために
は極めて多量の鉄鋼石及び鉄屑を必要とし、コストアッ
プの要因となっている。The above-mentioned counterweight is formed by mixing a large amount of iron ore, sand and sand with heavy materials to be filled in the frame, and fixing the mixture with cement. In order to achieve the target weight, the heavy object requires an extremely large amount of iron ore and iron scrap, which causes an increase in cost.
【0004】そこで、カウンタウエイトの枠体内に重量
物を充填して目標重量を達成したカウンタウエイトであ
って、該重量物のコストを低減し、安価なカウンタウエ
イトを製作するために解決せらるべき技術的課題が生じ
てくるのであり、本発明は該課題を解決することを目的
とする。[0004] Therefore, a counterweight in which a heavy object is filled into the frame of the counterweight to achieve a target weight, which should be solved in order to reduce the cost of the heavy object and to manufacture an inexpensive counterweight. A technical problem arises, and an object of the present invention is to solve the problem.
【0005】[0005]
【課題を解決するための手段】この発明は上記目的を達
成するために提案せられたものであり、下部走行体の上
部に上部旋回体が旋回自在に懸架された建設機械であっ
て、該建設機械の前記上部旋回体の後部に取り付けら
れ、且つ、重量物を充填して成るカウンタウエイトに於
て、該カウンタウエイトの充填物は少量の鉄鋼石及び少
量の鉄屑を固着するためのセメントに、電気炉製鋼過程
で得られる酸化スラグ(slug)を高温状態で破砕粒状化
し、急冷処理して得られるセラミック系人工骨材を多量
混合して前記少量の鉄鋼石及び鉄屑を固着して構成さ
れ、該重量物をカウンタウエイトの枠体内に充填する建
設機械のカウンタウエイトを提供するものである。SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above object, and is a construction machine in which an upper revolving structure is swingably suspended above a lower traveling structure. In a counterweight attached to the rear of the upper revolving structure of a construction machine and filled with a heavy material, the filling of the counterweight is a cement for fixing a small amount of iron ore and a small amount of iron shavings. In addition, oxidized slag (slug) obtained in the electric furnace steelmaking process is crushed and granulated in a high temperature state, and a large amount of ceramic-based artificial aggregate obtained by quenching is mixed to fix the small amount of iron ore and iron scrap It is an object of the present invention to provide a counterweight of a construction machine which is constructed and fills the weight into a frame of the counterweight.
【0006】[0006]
【発明の実施の形態】以下、本発明の一実施の形態を図
1乃至図3に従って詳述する。尚、説明の都合上、従来
公知に属する技術事項も同時に説明し、対象部分は同一
符号を用いるものとする。図1は建設機械の一例として
の油圧ショベル10を示す。該油圧ショベル10は下部
走行体11の上部に上部旋回体12が旋回自在に懸架さ
れており、該上部旋回体12には運転室13及びエンジ
ン、油圧機器等が内装されたマシンキャブ14が設置さ
れており、そして、該上部旋回体12の前部にはブーム
15、アーム16及びバケット17が夫々揺動自在に関
節連結されて成る作業機18が装着されている。更に、
該上部旋回体12の後部には車体安定のためにカウンタ
ウエイト1が装着されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. For convenience of explanation, technical matters belonging to the related art are also described at the same time, and the same reference numerals are used for the target parts. FIG. 1 shows a hydraulic excavator 10 as an example of a construction machine. The hydraulic excavator 10 has an upper revolving structure 12 rotatably suspended above an undercarriage 11, and a cab 13 and a machine cab 14 in which an engine, hydraulic equipment, and the like are installed are installed on the upper revolving structure 12. At the front of the upper revolving unit 12, a working machine 18 is mounted, in which a boom 15, an arm 16, and a bucket 17 are connected to each other so as to be swingable. Furthermore,
A counterweight 1 is attached to a rear portion of the upper revolving unit 12 for stabilizing the vehicle body.
【0007】而して、該カウンタウエイト1は図2に示
す如く、所定の厚みを有する鋼板から成るボックス型枠
体2であって、該枠体2は上面が開放されており、該開
放部から少量の鉄鋼石5,5…及び少量の鉄屑6,6…
を注入し、更に、之等鉄鋼石5,5…及び鉄屑6,6…
を固着するためのセメント8に、従来の砂7,7…に代
え電気炉製鋼過程で得られる副産物であるところの酸化
スラグ(slug)、即ち、鉄鋼石中に含有している不純物
を高温状態で破砕粒状化し、之を急冷処理して得られる
セラミックス系人工骨材19をミキサー20にて混合
し、之を前記枠体2内に注入して前記少量の鉄鋼石5,
5…及び鉄屑6,6…を該人工骨材19を混合した前記
セメント8にて固結され乍ら該枠体2内に充填固着さ
れ、更に、前記上面開放部に蓋体3を蓋装して構成され
る。As shown in FIG. 2, the counterweight 1 is a box-shaped frame 2 made of a steel plate having a predetermined thickness, and the frame 2 has an open upper surface. From a small amount of iron ore 5,5 ... and a small amount of iron scrap 6,6 ...
, And iron and steel stones 5,5 ... and iron scraps 6,6 ...
The cement 8 for fixing the slag, which is a by-product obtained in the steelmaking process of the electric furnace instead of the conventional sands 7, 7, ..., that is, the impurities contained in the iron ore at a high temperature. A ceramic artificial aggregate 19 obtained by crushing and granulating the mixture and quenching the mixture is mixed by a mixer 20, and the mixture is poured into the frame 2 and the small amount of iron ore 5,
5 and iron scraps 6, 6 are fixed and fixed in the frame 2 while being cemented by the cement 8 mixed with the artificial aggregate 19. Further, the lid 3 is covered with the upper surface opening. It is configured by mounting.
【0008】尚、該ボックス型の枠体2の背面には背面
体4が固設されており、該背面体4の両側部4a,4a
は該枠体2の両側より外方へ突出しており、該突出部に
前記上部旋回体12のフレーム12a,12aにボルト
穴4b,4bが開穿され、そして、図3に示すように該
上部旋回体12の後部に該カウンタウエイト1を当接
し、前記背面体4の両側部4a,4aを上部旋回体12
の左右のフレーム12a,12aの後端面に当接し、ボ
ルト21,21にて前記ボルト穴4b,4bを介して該
カウンタウエイト1を上部旋回体12の後部に固設す
る。但し、該カウンタウエイト1の上部旋回体12に対
する固設手段は之に限定されるものではない。又、前記
ボックス型の枠体2も上記形状に限定せられるべきでは
なく、更に、前記背面体4を固設されないものであって
もよい。A back body 4 is fixed to the back of the box-shaped frame 2, and both side portions 4a, 4a of the back body 4 are provided.
Protrudes outward from both sides of the frame body 2. Bolt holes 4 b, 4 b are formed in the protrusions in the frames 12 a, 12 a of the upper swing body 12, and as shown in FIG. The counterweight 1 is brought into contact with the rear part of the revolving unit 12, and both side parts 4 a, 4 a of the back body 4 are
The counterweight 1 is fixed to the rear part of the upper revolving unit 12 with the bolts 21 and 21 through the bolt holes 4b and 4b. However, the means for fixing the counterweight 1 to the upper swing body 12 is not limited to this. In addition, the box-shaped frame 2 should not be limited to the above-mentioned shape, and the back body 4 may not be fixed.
【0009】斯くして、該カウンタウエイト1を上部旋
回体12の後部に取付けられた油圧ショベル10は走行
旋回し乍ら前記作業機18によって土砂の掘削、積込作
業を行うとき、車体バランスがとれて円滑なる作業が実
施せられることができる。Thus, when the excavator 10 having the counterweight 1 mounted on the rear portion of the upper revolving unit 12 excavates and loads earth and sand by the work implement 18 while traveling and turning, the vehicle body balance is maintained. A smooth operation can be performed.
【0010】斯くの如く、本発明はカウンタウエイトの
重量物9として用いられる鉄鋼石5,5…及び鉄屑6,
6…を固着するためのセメント8に比重の高い人工骨材
19を混合して該鉄鋼石5,5…及び鉄屑6,6…を固
着するのであるから、従来のように多量の鉄鋼石5,5
…及び鉄屑6,6…を用いる必要がなくなり、重量物9
として目標重量を達成するために必要な鉄鋼石5,5…
及び鉄屑6,6…の量は著しく減少させることができ
る。As described above, the present invention relates to iron ore stones 5, 5...
Since artificial iron aggregates 19 having a high specific gravity are mixed with the cement 8 for fixing the steel stones 6, and the steel stones 5, 5,... And the iron scraps 6, 6,. 5,5
… And iron scraps 6,6… no longer need to be used.
Steel stones necessary to achieve the target weight as 5, 5, ...
And the amount of iron scraps 6, 6,... Can be significantly reduced.
【0011】更に、人工骨材19は粒の表面に微細な凹
凸を有しているので、セメント8によって固結させる際
に於てセメント8との付着性が良好であり、従って、カ
ウンタウエイト1の枠体2に亀裂等が発生しても、該枠
体2内に充填された重量物9が該亀裂部位より不慮流出
するようなことはなく、カウンタウエイト1としての機
能が減殺されることはない。Further, since the artificial aggregate 19 has fine irregularities on the surface of the grains, it has good adhesion to the cement 8 when it is consolidated by the cement 8, and therefore, the counterweight 1 Even if a crack or the like occurs in the frame 2, the weight 9 filled in the frame 2 does not inadvertently flow out of the crack, and the function as the counterweight 1 is reduced. There is no.
【0012】更に又、前記人工骨材19は、一般の骨材
とは異なり、粘土、有機不純物、塩分等が含まれていな
いので腐食に対して有利であり、依って、カウンタウエ
イト1の枠体2も腐食による破損が防止される。Further, unlike the general aggregate, the artificial aggregate 19 is advantageous for corrosion because it does not contain clay, organic impurities, salt and the like, and therefore, the frame of the counterweight 1 The body 2 is also prevented from being damaged by corrosion.
【0013】尚、本発明は、本発明の精神を逸脱しない
限り種々の改変を為すことができ、そして、本発明が該
改変されたものに及ぶことは当然である。The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.
【0014】[0014]
【発明の効果】本発明は上記一実施の形態にて詳述する
如く、カウンタウエイトに用いられている重量物は、少
量の鉄鋼石及び少量の鉄屑を、鋼材精製時に生じる副産
物である酸化スラグ(slug)を高温状態で破砕粒状化
し、急冷処理して得たセラミックス系人工骨材を混合し
たセメントにて固結して形成されている。而して、該人
工骨材は比重が高いので鉄鋼石及び鉄屑は従来品に比
し、著しく少量を用いてもカウンタウエイトとしての目
標重量を達成することができる。而して、該鉄鋼石及び
鉄屑はコスト高であるが、この鉄鋼石及び鉄屑は前述し
たように少量で足り、更に又、該人工骨材の生産コスト
は殆どゼロであることと相俟ってカウンタウエイトの生
産コストを著しく低減させることができた。As described in detail in the above embodiment, the present invention uses a heavy material used as a counterweight to convert a small amount of iron ore and a small amount of iron scrap into an oxidized product which is a by-product generated during steel refining. The slag is formed by crushing and granulating slug in a high temperature state and solidifying with a cement mixed with a ceramic-based artificial aggregate obtained by quenching. Since the artificial aggregate has a high specific gravity, the target weight as the counterweight can be achieved even with a very small amount of iron ore and iron scrap compared to the conventional product. Thus, the iron ore and iron scrap are expensive, but the iron and stone and iron scrap are small in quantity as described above, and the production cost of the artificial aggregate is almost zero. In addition, the production cost of the counterweight was significantly reduced.
【0015】又、該人工骨材は一般の骨材とは異なり、
耐腐食性を有するので鋼材から成る枠体の腐食による破
損も防止される等、正に著大なる効果を奏する発明であ
る。Further, the artificial aggregate is different from general aggregate,
The invention has a very great effect, for example, it has corrosion resistance, so that the frame made of steel is prevented from being damaged by corrosion.
【図1】本発明の一実施の形態のカウンタウエイトを油
圧ショベルに取付けた状態を示す側面図。FIG. 1 is a side view showing a state in which a counterweight according to an embodiment of the present invention is mounted on a hydraulic excavator.
【図2】本発明の一実施の形態のカウンタウエイトの製
造状態を示す解説斜面図。FIG. 2 is an explanatory perspective view showing a manufacturing state of the counterweight according to the embodiment of the present invention.
【図3】本発明の一実施の形態のカウンタウエイトを建
設機械の上部旋回体の後部に取付けた状態を示す一部切
欠平面図。FIG. 3 is a partially cutaway plan view showing a state in which the counterweight according to the embodiment of the present invention is attached to a rear portion of an upper swing body of a construction machine.
【図4】従来例のカウンタウエイトの製造状態を示す解
説斜面図。FIG. 4 is an explanatory perspective view showing a manufacturing state of a conventional counterweight.
1 カウンタウエイト 2 枠体 3 蓋体 4 背面体 5 鉄鋼石 6 鉄屑 8 セメント 9 重量物 10 油圧ショベル 11 下部走行体 12 上部旋回体 19 人工骨材 DESCRIPTION OF SYMBOLS 1 Counterweight 2 Frame 3 Lid 4 Back body 5 Iron ore stone 6 Iron scrap 8 Cement 9 Heavy load 10 Hydraulic excavator 11 Lower traveling body 12 Upper revolving body 19 Artificial aggregate
Claims (1)
在に懸架された建設機械であって、該建設機械の前記上
部旋回体の後部に取り付けられ、且つ、重量物を充填し
て成るカウンタウエイトに於て、該カウンタウエイトの
充填物は少量の鉄鋼石及び少量の鉄屑を固着するための
セメントに、電気炉製鋼過程で得られる酸化スラグ(sl
ug)を高温状態で破砕粒状化し、急冷処理して得られる
セラミック系人工骨材を多量混合して前記少量の鉄鋼石
及び鉄屑を固着して構成され、該重量物をカウンタウエ
イトの枠体内に充填することを特徴とする建設機械のカ
ウンタウエイト。1. A construction machine in which an upper revolving structure is rotatably suspended above an undercarriage, and is attached to a rear portion of the upper revolving structure of the construction machine and is filled with heavy objects. In the counterweight, the filling of the counterweight is converted into cement for fixing a small amount of iron ore and a small amount of iron swarf, and an oxide slag (sl) obtained in an electric furnace steelmaking process.
ug) is crushed and granulated in a high temperature state, and a large amount of ceramic artificial aggregate obtained by quenching is mixed to fix the small amount of iron ore and iron scraps. Counterweight for construction machinery, characterized by being filled into a counterweight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP772998A JPH11200420A (en) | 1998-01-19 | 1998-01-19 | Counterweight of construction machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP772998A JPH11200420A (en) | 1998-01-19 | 1998-01-19 | Counterweight of construction machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH11200420A true JPH11200420A (en) | 1999-07-27 |
Family
ID=11673811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP772998A Pending JPH11200420A (en) | 1998-01-19 | 1998-01-19 | Counterweight of construction machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH11200420A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002042566A1 (en) * | 2000-11-24 | 2002-05-30 | Maeta Concrete Industry, Ltd. | Counterweight |
EP1431464A1 (en) * | 2001-09-28 | 2004-06-23 | Shin Caterpillar Mitsubishi Ltd. | Counterweight and method for recycling the same |
KR100481962B1 (en) * | 2002-04-08 | 2005-04-13 | 주식회사 에스틸 | Manufacturing Method for Counterweight of Industrial Truck |
KR100884882B1 (en) * | 2001-04-13 | 2009-02-23 | 가부시키가이샤 고마쓰 세이사쿠쇼 | Counterweight |
EP2039837A1 (en) * | 2007-09-21 | 2009-03-25 | New Holland Kobelco Construction Machinery S.p.A. | Excavator bottom frame. |
KR100914576B1 (en) * | 2001-04-05 | 2009-08-31 | 가부시키가이샤 고마쓰 세이사쿠쇼 | Counterweight |
KR100979089B1 (en) | 2008-08-01 | 2010-08-31 | (주)부국테크 | Balance Weight and Making Method of the same |
KR101049996B1 (en) | 2011-01-26 | 2011-07-19 | 김용석 | Counter weight of heavy epuipment |
EP2426078A3 (en) * | 2010-09-07 | 2013-07-10 | D-3 Ingeniera Y Desarrollo S.L. | High-density counterweight |
CN103693929A (en) * | 2013-12-17 | 2014-04-02 | 苏州久德机电科技有限公司 | Preparation method of elevator counterweight |
-
1998
- 1998-01-19 JP JP772998A patent/JPH11200420A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002042566A1 (en) * | 2000-11-24 | 2002-05-30 | Maeta Concrete Industry, Ltd. | Counterweight |
KR100914576B1 (en) * | 2001-04-05 | 2009-08-31 | 가부시키가이샤 고마쓰 세이사쿠쇼 | Counterweight |
KR100884882B1 (en) * | 2001-04-13 | 2009-02-23 | 가부시키가이샤 고마쓰 세이사쿠쇼 | Counterweight |
EP1431464A1 (en) * | 2001-09-28 | 2004-06-23 | Shin Caterpillar Mitsubishi Ltd. | Counterweight and method for recycling the same |
US7328863B2 (en) | 2001-09-28 | 2008-02-12 | Shin Caterpillar Mitsubishi Ltd. | Counterweight and method for recycling the same |
EP1431464A4 (en) * | 2001-09-28 | 2008-03-05 | Caterpillar Mitsubishi Ltd | Counterweight and method for recycling the same |
KR100481962B1 (en) * | 2002-04-08 | 2005-04-13 | 주식회사 에스틸 | Manufacturing Method for Counterweight of Industrial Truck |
EP2039837A1 (en) * | 2007-09-21 | 2009-03-25 | New Holland Kobelco Construction Machinery S.p.A. | Excavator bottom frame. |
KR100979089B1 (en) | 2008-08-01 | 2010-08-31 | (주)부국테크 | Balance Weight and Making Method of the same |
EP2426078A3 (en) * | 2010-09-07 | 2013-07-10 | D-3 Ingeniera Y Desarrollo S.L. | High-density counterweight |
KR101049996B1 (en) | 2011-01-26 | 2011-07-19 | 김용석 | Counter weight of heavy epuipment |
CN103693929A (en) * | 2013-12-17 | 2014-04-02 | 苏州久德机电科技有限公司 | Preparation method of elevator counterweight |
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