JP2000064338A - Dredging bucket - Google Patents
Dredging bucketInfo
- Publication number
- JP2000064338A JP2000064338A JP10240395A JP24039598A JP2000064338A JP 2000064338 A JP2000064338 A JP 2000064338A JP 10240395 A JP10240395 A JP 10240395A JP 24039598 A JP24039598 A JP 24039598A JP 2000064338 A JP2000064338 A JP 2000064338A
- Authority
- JP
- Japan
- Prior art keywords
- bucket
- sand
- buckets
- scooping
- dredging
- 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
- Load-Engaging Elements For Cranes (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、主としてダム湖な
どのように沈木等が混入している底部の土砂を浚渫する
作業を、沈木の噛み込みなしに能率よく行ないうる浚渫
用バケットに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dredging bucket capable of efficiently performing dredging of bottom sediment such as dam lakes in which a sink is mixed without biting the sink.
【0002】[0002]
【従来技術】ダム湖などの底部に堆積している土砂には
沈木が混入している場合が多く、その沈木の量は容量に
して5から10%を超える場合もある。こうした堆積土
砂の浚渫作業には、水深10m程度までは従来からグラ
ブ式やバックホウ式の浚渫方式が採用されてきている。2. Description of the Related Art In many cases, the sediment deposited on the bottom of a dam lake is mixed with shrubs, and the amount of the shrubs may exceed 5 to 10% in volume. For such dredging work of accumulated sediment, a grab type or backhoe type dredging method has been conventionally used up to a water depth of about 10 m.
【0003】しかしながら、グラブ式浚渫方式の場合に
は、堆積している沈木3が、グラブバケットの浚渫土砂
の掘削時に、図10に示すごとく左右のバケット1の各
刃口2の間に噛み込み、これらバケット1を巻き上げる
途中に、両バケット1の沈木3を噛み込んだ各刃口2の
隙間から、掘削した土砂4が矢印Eのごとく漏れ出して
しまう。このような土砂4の漏れ出しは、僅かな刃口2
間の隙間でも、水深が深くなるに従ってその問題は大き
くなる。However, in the case of the grab-type dredging method, the accumulated shrub 3 is caught between the blade openings 2 of the left and right buckets 1 as shown in FIG. 10 when excavating the dredged soil of the grab bucket. While the buckets 1 are being rolled up, the excavated earth and sand 4 leaks out as shown by the arrow E from the gap between the blade openings 2 in which the shrubs 3 of both buckets 1 are bitten. Such a leak of earth and sand 4 is caused by a slight cutting edge 2
Even in the gap between them, the problem becomes more serious as the water depth increases.
【0004】この現象を防ぐため、強力な動力を用いて
バケット1の刃口2に噛み込んだ沈木3等を押し切る等
の対策を講じたものもあるが、実際には根本的な解決策
とはなっていないのが現状である。In order to prevent this phenomenon, some measures have been taken such as using strong power to push off the shrub 3 etc. caught in the blade opening 2 of the bucket 1, but in reality, this is a fundamental solution. The current situation is that it is not.
【0005】一方、バックホウ式浚渫方式の場合におい
ては、掘削は堆積土砂を掬い取る機構のため、沈木等の
障害物の噛み込み等に起因した土砂の漏れは生じない
が、バックホウ式浚渫機のアームおよびブームの長さに
限界があり、その適用水深は10m程度で、水深の制約
を受けるということになる。On the other hand, in the case of the backhoe-type dredging system, since the excavation is a mechanism for scooping up the sediment, the leakage of the sediment due to the biting of obstacles such as a shrub does not occur, but the backhoe-type dredger does not. There is a limit to the length of the arm and boom, and the applicable water depth is about 10 m, which means that the water depth is restricted.
【0006】[0006]
【発明が解決しようとする課題】本発明は、ダム底に堆
積している土砂の浚渫時に、沈木等の障害物の影響を殆
んど受けることがなく、しかも大水深の浚渫にも充分対
応できる掘削機構を有する浚渫用バケットを提供する。DISCLOSURE OF THE INVENTION The present invention, when dredging the sediment deposited on the bottom of a dam, is hardly affected by obstacles such as shrubs, and is sufficiently adaptable to dredging in deep water. There is provided a dredging bucket having a drilling mechanism that can be used.
【0007】[0007]
【課題を解決するための手段】本発明は、左右にそれぞ
れ配置した各ヒンジを支点として左右のバケットが相対
向して回動可能にし、両バケットが土砂を掬い上げた状
態では両バケットの土砂の掬い口が夫々上方を向くよう
にした浚渫用バケットからなり、また左右の両バケット
が土砂を掬い上げ時に、両バケットの開放された掬い口
を覆うような蓋を設けたり、その蓋の周囲に、柔軟性材
料からなるスカートを取り付けるようにした浚渫用バケ
ットからなる。SUMMARY OF THE INVENTION According to the present invention, the left and right buckets can rotate in opposition to each other with hinges arranged on the left and right sides as fulcrums, and when both buckets scoop up the earth and sand, Each of the buckets has a dredging bucket with the scooping mouth facing upward, and when the left and right buckets scoop up soil, a lid is provided to cover the open scooping openings of both buckets, and the surroundings of the lids. In addition, it consists of a dredging bucket fitted with a skirt made of a flexible material.
【0008】[0008]
【発明の実施の形態】以下図面を参照して本発明の浚渫
用バケットの一実施形態につき説明するが、図1はこの
浚渫用バケットの説明用の全体側面図で、図2は図1の
A−A方向を示す上シーブの上面図、図3は図1のB−
B方向を示す下シーブの上面図、図4は図1のC−C方
向を示す左右のバケットの上面図、そして図5は図1の
D−D方向を示すバケット及びその上面を覆う蓋の要部
正断面図であり、さらに図6は図1の上シーブと下シー
ブとに張設されたバケット開閉用ワイヤロープの接続を
示す要部斜視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the dredging bucket of the present invention will be described below with reference to the drawings. FIG. 1 is an overall side view for explaining the dredging bucket, and FIG. The top view of the upper sheave which shows the AA direction, FIG. 3 is B- of FIG.
4 is a top view of the lower sheave showing the B direction, FIG. 4 is a top view of the left and right buckets showing the CC direction of FIG. 1, and FIG. 5 is a view of the bucket showing the DD direction of FIG. FIG. 6 is a front sectional view of an essential part, and FIG. 6 is a perspective view of the essential part showing the connection of the bucket opening / closing wire rope stretched between the upper sheave and the lower sheave of FIG. 1.
【0009】まず、この浚渫用バケットは左右のそれぞ
れ対称位置に設けた2つのヒンジ5をそれぞれ支点とし
て、左右の両バケット1が図1の矢印Rの範囲内で回動
可能になっており、土砂の掘削後は矢印L方向に引き上
げ、そしてバケット1は図1の2点鎖線の矢印Pに示す
ように開放する手順は、図10の従来例等のグラブ式の
ものと殆んど変わることがない。First, in this dredging bucket, the two left and right buckets 1 are rotatable within the range of arrow R in FIG. After excavating the earth and sand, the procedure of pulling up in the direction of the arrow L and opening the bucket 1 as shown by the arrow P of the two-dot chain line in FIG. 1 is almost the same as that of the grab type of the conventional example in FIG. There is no.
【0010】しかしながら、本発明の浚渫用バケットで
は、図7に示すごとく、バケット1を掘削土砂地盤に下
した後、図8のごとく左右のバケット1で土砂4を掘削
する時の機構に従来例のものにはない特徴を有してい
る。However, in the dredging bucket of the present invention, as shown in FIG. 7, after the bucket 1 is lowered to the excavated earth and sand ground, as shown in FIG. It has features not found in other products.
【0011】即ち、土砂4の掘削時には左右のバケット
1が図8のごとく両バケット1,1が土砂4を掬い上げ
た状態では両バケット1,1の土砂の掬い口14が夫々
上方を向くようにしている。That is, when excavating the earth and sand 4, when the buckets 1 on the left and right are scooping the earth and sand 4 as shown in FIG. 8, the scooping ports 14 of the earth and sand on both the buckets 1 and 1 face upward, respectively. I have to.
【0012】従って、図10の従来例のごとく掘削工程
においてバケット1の刃口2が垂直位置で接合して浚渫
した土砂4に混入している沈木3等を2つのバケット1
の間で噛み込むことはなく、したがって、たとえ沈木3
をバケット1が掬い上げたとしても、土砂の掬い口14
は上を向いているからこの浚渫用バケットを引き上げる
途中にバケット1中の土砂4が水中に漏れ出す恐れはな
い。Therefore, as in the conventional example shown in FIG. 10, in the excavation process, the bucket 2 of the bucket 1 is joined at a vertical position and mixed with the dredged earth and sand 4 and the like.
It does not bite between, and therefore
Even if the bucket 1 is picked up, the scooping port 14 for earth and sand
Since it is facing upward, there is no possibility that the soil 4 in the bucket 1 will leak out into the water while the bucket for dredging is being pulled up.
【0013】なお、上記のごとく掬い口14を上に向い
た状態での左右のバケット1同志の間隔は適宜に選定す
るものとし、バケット1には複数の爪13を設けるのが
一般的である。The interval between the left and right buckets 1 with the scooping mouth 14 facing upward as described above is appropriately selected, and the bucket 1 is generally provided with a plurality of claws 13. .
【0014】次に、上記の左右の両バケット1が土砂4
を図8のごとく掬い上げた状態において、両バケット1
の開放された掬い口14を覆うような蓋10を、図7に
示すように予め設けると、一度掬い取った土砂4は浚渫
用バケットから漏れ出しにくくできる。Next, the left and right buckets 1 described above are filled with soil 4
In the state where the buckets are scooped up as shown in FIG. 8, both buckets 1
If the lid 10 that covers the open scooping port 14 is provided in advance as shown in FIG. 7, the soil 4 once scooped can be prevented from leaking out from the dredging bucket.
【0015】以上により浚渫用バケットを水中から引き
上げた後、図9に示すごとく、所定の土砂の投棄場所に
対して浚渫用バケットの左右の両バケット1を開放する
ことで土砂4は放出される。After pulling up the dredging bucket from the water as described above, as shown in FIG. 9, the sand 4 is discharged by opening both the left and right buckets 1 of the dredging bucket to a predetermined earth and sand dumping place. .
【0016】また、図5に示すように左右の両バケット
1の開放された上面を覆うように設けた蓋10の周囲
に、柔軟性材料からなるスカート11を取り付けると、
土砂4を掬い取ったバケット1の上面を覆う蓋10とバ
ケット1上面外周とをこのスカート11でさらに覆うこ
とになり、バケット1から漏出する土砂4の水中への拡
散を一層防止でき、水中の濁り発生の恐れがなくなる。Further, as shown in FIG. 5, when a skirt 11 made of a flexible material is attached around the lid 10 provided so as to cover the open upper surfaces of the left and right buckets 1,
The lid 10 that covers the upper surface of the bucket 1 from which the soil 4 is scooped and the outer periphery of the upper surface of the bucket 1 are further covered with this skirt 11, and it is possible to further prevent diffusion of the soil 4 that leaks from the bucket 1 into the water. There is no fear of turbidity.
【0017】次に、図7、図8及び図9で説明したこの
実施形態における浚渫用バケットの水中地盤への下し、
土砂4の掘削及び掬い取り、さらには水中からの引き上
げ及び土砂4の放出のためのバケット1の開放の各操作
は、図2に示すようなガイドローラ8を設けた3個の車
からなる上シーブ7と、図3に示すように3個の車から
なる下シーブ9との間にワイヤロープ12を介したウイ
ンチ機構により行なっている。Next, the dredging bucket in this embodiment described in FIGS. 7, 8 and 9 is lowered to the underwater ground,
Each operation of excavating and scooping the earth and sand 4, and further pulling up from the water and opening the bucket 1 for discharging the earth and sand 4 consists of three cars provided with guide rollers 8 as shown in FIG. A winch mechanism with a wire rope 12 interposed between the sheave 7 and a lower sheave 9 composed of three wheels as shown in FIG.
【0018】すなわち、図6において、矢印Xで示すワ
イヤロープ12を矢印方向に巻き上げることによりバケ
ット1を開放操作し、矢印Yで示すワイヤロープ12を
矢印方向に巻き上げることによりバケット1を閉じる掬
い取り操作を行なうようにしている。That is, in FIG. 6, the bucket 1 is opened by winding the wire rope 12 shown by the arrow X in the direction of the arrow, and the bucket 1 is closed by winding the wire rope 12 shown by the arrow Y in the direction of the arrow. I am trying to operate.
【0019】なお、上記の実施形態では、バケット1の
開閉用にワイヤロープ12と上シーブ7及び下シーブ9
とからなるウインチ機構による操作方式を使用している
が、特に上記の操作方式に拘束されるものではなく、例
えばワイヤロープ12の代わりに適宜なロッドを使用す
る等、種々の操作方式を採用することができる。In the above embodiment, the wire rope 12, the upper sheave 7, and the lower sheave 9 are used to open and close the bucket 1.
Although the operation system using the winch mechanism is used, the operation system is not particularly limited to the above operation system, and various operation systems are adopted, for example, an appropriate rod is used instead of the wire rope 12. be able to.
【0020】[0020]
【発明の効果】本発明の浚渫用バケットをダム底などの
沈木が混入している堆積土砂の浚渫に使用すれば、バケ
ットの刃口に沈木等が噛み込んで、その隙間からバケッ
トで掬い取った土砂が水中に漏れ出すことを防止でき、
さらに、蓋やスカートを設けることにより、掘削土砂の
バケット内から土砂が漏れ出すとこを低減できると共
に、水中の濁りの拡散を防止できる。また、本発明の浚
渫用バケットは、一般的な建設機械への装着が容易に可
能である。EFFECT OF THE INVENTION If the dredging bucket of the present invention is used for the dredging of accumulated sediment such as dam bottom and the like, the bucket will be scooped by the bucket from the gap. Can prevent the soil and sand from leaking into the water,
Further, by providing the lid and the skirt, it is possible to reduce the amount of earth and sand leaking from the excavated earth and sand bucket, and to prevent the diffusion of turbidity in water. Further, the dredging bucket of the present invention can be easily mounted on a general construction machine.
【図1】本発明の浚渫用バケットの一実施形態の説明用
の全体側面図である。FIG. 1 is an overall side view for explaining an embodiment of a dredging bucket of the present invention.
【図2】図1のA−A方向を示す上シーブの上面図であ
る。2 is a top view of the upper sheave showing the AA direction in FIG. 1. FIG.
【図3】図1のB−B方向を示す下シーブの上面図であ
る。3 is a top view of the lower sheave showing the BB direction in FIG. 1. FIG.
【図4】図1のC−C方向を示す左右のバケットの上面
図である。FIG. 4 is a top view of the left and right buckets showing the CC direction in FIG.
【図5】図1のD−D方向を示すバケット及び蓋の正断
面図である。5 is a front cross-sectional view of the bucket and the lid, showing the DD direction in FIG. 1. FIG.
【図6】図1の上シーブと下シーブとに張設されたバケ
ット開閉用ワイヤロープの作動を示す要部斜視図であ
る。FIG. 6 is a perspective view of essential parts showing the operation of the bucket opening / closing wire rope stretched between the upper sheave and the lower sheave of FIG. 1.
【図7】図1の浚渫用バケットの水中への下し操作を示
す側面図である。FIG. 7 is a side view showing an operation of lowering the dredging bucket of FIG. 1 into water.
【図8】図7の浚渫用バケットの掘削土砂の掬い取り操
作を示す側面図である。FIG. 8 is a side view showing a scooping operation of excavated soil in the dredging bucket of FIG. 7.
【図9】図8の浚渫用バケットの引上げ後の掘削土砂放
出の開放操作を示す側面図である。9 is a side view showing an opening operation of excavated earth and sand discharge after pulling up the dredging bucket of FIG. 8. FIG.
【図10】従来のグラブ方式による左右のバケットによ
る沈木の噛み込みによる土砂の漏れ出しを示す側面図で
ある。FIG. 10 is a side view showing leakage of earth and sand due to biting of a tree by left and right buckets according to a conventional grab method.
1 バケット 4 土砂 5 ヒンジ 10 蓋 11 スカート 14 掬い口 1 bucket 4 earth and sand 5 hinge 10 lid 11 skirt 14 scooping mouth
Claims (3)
として左右のバケットが相対向して回動可能にし、両バ
ケットが土砂を掬い上げた状態では両バケットの土砂の
掬い口が夫々上方を向くようにした浚渫用バケット。1. The left and right buckets are pivotally opposed to each other with respective hinges arranged on the left and right sides as fulcrums, and when both buckets scoop the earth and sand, the scooping holes for the sand and sand of both buckets face upward, respectively. Bucket for dredging.
に、両バケットの開放された掬い口を覆うような蓋を設
けた請求項1記載の浚渫用バケット。2. The dredging bucket according to claim 1, wherein both left and right buckets are provided with lids that cover the open scooping openings of both buckets when scooping up soil.
うに設けた蓋の周囲に、柔軟性材料からなるスカートを
取り付けた請求項2記載の浚渫用バケット。3. The dredging bucket according to claim 2, wherein a skirt made of a flexible material is attached around a lid provided so as to cover the open scooping openings of both buckets.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10240395A JP2000064338A (en) | 1998-08-26 | 1998-08-26 | Dredging bucket |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10240395A JP2000064338A (en) | 1998-08-26 | 1998-08-26 | Dredging bucket |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2000064338A true JP2000064338A (en) | 2000-02-29 |
Family
ID=17058851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10240395A Pending JP2000064338A (en) | 1998-08-26 | 1998-08-26 | Dredging bucket |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2000064338A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008040825A1 (en) * | 2006-10-03 | 2008-04-10 | Modelco S.L. | Valve opening system for excavator shovels |
-
1998
- 1998-08-26 JP JP10240395A patent/JP2000064338A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008040825A1 (en) * | 2006-10-03 | 2008-04-10 | Modelco S.L. | Valve opening system for excavator shovels |
ES2296535A1 (en) * | 2006-10-03 | 2008-04-16 | Model Co S.L. | Valve opening system for excavator shovels |
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