JP3595039B2

JP3595039B2 - Stirring bucket attachment

Info

Publication number: JP3595039B2
Application number: JP21674295A
Authority: JP
Inventors: 淳次小川
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-02
Filing date: 1995-08-02
Publication date: 2004-12-02
Anticipated expiration: 2015-08-02
Also published as: JPH0941417A

Description

【０００１】
【発明の属する技術分野】
本発明はパワーショベル等の土工機械本体アームの先端に取付け、土砂に硬化剤等の処理剤を混合して地盤改良を行うための撹拌バケットアタッチメントに関する。
【０００２】
【従来の技術】
土砂に硬化剤等を混合して地盤改良を行う土工機械用アタッチメントとして、掘削フレームのたて枠間に、所定の掬い巾を有する複数段の撹拌板を所定間隔をあけてすの子状に配設した撹拌バケットが知られており、すの子状の撹拌板群で土砂と硬化剤等をかき混ぜることにより地盤改良を行っている。
【０００３】
【発明が解決しようとする課題】
ところが、従来の撹拌バケットは、すの子状に配した各撹拌板の縁辺が直線状に形成されているため、この縁辺で掬った土砂等の移動方向性が略平行となるため、土砂と硬化剤が混ざりにくく、効率の良い撹拌が期待できなかった。
【０００４】
従って、本発明の目的は、撹拌効率が著しく増大する撹拌バケットアタッチメントを提供することにある。
【０００５】
【課題を解決するための手段】
上記の目的を達成するために、本発明は、土工機械本体への連結ステイを有する掘削外枠内に、所定の掬い巾を有する複数段の撹拌板を所定間隔をあけてすの子状に配設した土工機械用撹拌バケットアタッチメントにおいて、各段の撹拌板がその上面を掘削外枠の土砂受圧側に向けて所定角度に下向傾斜させ、且つ各段の撹拌板が前記掘削外枠内においてＶ字形または波形を形成するようにして固定されているとともに、各撹拌板の手前側及び／または後方側の撹拌縁辺が凹凸に形成されていることを特徴とする。
【０００６】
【作用】
撹拌バケットの各段の撹拌板がＶ字形に内側に向けて下向きに傾斜しているので、各撹拌板間を通り抜けた土砂と地盤改良処理剤はバケットの掘削枠の内側に送り出されながら混合される。
【０００７】
各段の撹拌板がＶ字形に配設されているので各段の撹拌の上下巾が深くなり、また、各撹拌板の手前側及び／または後方側の撹拌縁辺に好ましくは円弧状の凹面が形成されているので、土砂及び処理剤等は、撹拌板間を通過する際に、手前側凹面では円弧凹縁に沿って拡散し、後方側凹面では円弧凹縁に沿って集中する。複数段の撹拌板によってこれら拡散と集中が交互に連続して起こるので土砂と処理剤がまんべんなく混ざり合うことになる。
【０００８】
【発明の実施の形態】
以下、本発明の実施形態を添付図面に基づいて説明する。
図１は本発明による撹拌バケットを手前側から見た正面図であり、図２は左側面図である。
撹拌バケット１は、所定の掬い巾に配設した左右のたて枠２ａ、２ｂと、上側横枠３と、下側横枠４とからなる掘削外枠１’を有し、該外枠の上側横枠３には土工機械本体のアーム（図示せず）への連結部５が結合され、下側横枠４には複数の掘削爪６が所定間隔で取付けられている。
また、たて枠２ａ、２ｂの中間にこれと平行の補強枠７が上側横枠３と下側横枠４間に固定されており、これら左右たて枠２ａまたは２ｂと補強枠７の間、上側横枠３と補強枠７の間、あるいは左右たて枠２ａまたは２ｂと下側横枠４の間に複数段の撹拌板８が所定の間隔９をあけてすの子状に一体に配設されている。
【０００９】
前記各段の撹拌板８は、掬い面、すなわち上面８’を前記掘削外枠１’の手前側に向けて所定角度に下向傾斜させ、且つ各段の撹拌板８が掘削外板１’内においてＶ字形または波形を形成するようにして、前記のように左右たて枠２ａまたは２ｂと補強板７の間、上側横枠３と補強板７の間、あるいは左右たて枠２ａまたは２ｂと下側横枠４の間にそれぞれ固定されている。
尚、各々のＶ字形撹拌板８は、好ましくは図のように、上段Ｖ字形の下端が下段Ｖ字形の上端よりも下位に位置し、これにより上下撹拌板８、８が掘削外枠１’の横断方向において部分的に重複するように配設する。
【００１０】
また、各撹拌板８の手前側及び／または後方側の撹拌縁辺は凹凸または波形に形成されている。
図は本発明の最も好ましい実施態様を例示しており、この実施態様では各撹拌板８の手前側縁辺と後方側縁辺の双方を凹凸または波形に形成し、また、縁辺の凹部を円弧状に形成してある。
【００１１】
このように、各撹拌板８の縁辺に円弧状の凹縁１０を有する凹凸または波形に形成したことにより、土砂及び硬化剤等の地盤改良処理剤は、図３に矢印で示すように、撹拌板８の手前側縁辺では各円弧状凹縁に沿って周囲へ拡散しなが掬われ、後方側縁辺では円弧状凹縁へ集中しながら吐き出される。
各撹拌板８の縁辺には前記凹凸が連続して形成されているので、撹拌板の長手方向全域において前記の拡散−集中が若起され、土砂と処理剤が効率よく混ざり合う。
【００１１】
【実施例】
図の実施例では撹拌板８の手前側と後方側縁辺の双方を凹凸にした場合を例示したが、いずれか一方のみを凹凸縁辺にしても、それなりの混合効率性が得られる。
また、図では縁辺の凹部を円弧状にした場合を例示しているが、他の形状の凹部、例えば、手前側縁辺の凹部を逆Ｖ字形、後方側縁辺の凹部をＶ字形にしてもよｅ。
【００１２】
【効果】
本発明の撹拌バケットは複数段の撹拌板を掘削外枠内にＶ字形に配設したので各撹拌板による土砂及び地盤改良処理剤の撹拌深さが深くなり、また、上段と下段の撹拌板の撹拌領域に重複部分が生ずるので撹拌効率が良い。
【００１３】
撹拌板の撹拌縁辺に凹凸を形成し、特に、縁辺凹部を円弧状に形成したことにより、混合物の拡散−集中が広範囲に若起され、撹拌効率が飛躍的に向上する。
【図面の簡単な説明】
【図１】本発明による撹拌バケットアタッチメントの掘削受圧側正面図
【図２】図１の左側面
【図３】撹拌作用説明図
【符号の説明】
１…撹拌バケット、１’…掘削外枠、２ａ、２ｂ…たて枠、３…上側横枠、４…下側横枠、５…連結部、６…掘削爪、７…補強枠、８…撹拌板、９…間隙、１０…凹縁。[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stirring bucket attachment attached to the tip of an arm of an earthmoving machine such as a power shovel to mix soil and sand with a treating agent such as a hardener to improve the ground.
[0002]
[Prior art]
As an attachment for earthmoving machinery that mixes a hardening agent and the like into earth and sand to improve the ground, between the vertical frames of the excavation frame, a multi-stage stirring plate with a predetermined scooping width is spaced apart at a predetermined interval in a child shape. The stirring buckets arranged are known, and the ground is improved by mixing earth and sand with a hardening agent and the like in a group of china-like stirring plates.
[0003]
[Problems to be solved by the invention]
However, in the conventional stirring bucket, since the edges of the stirring plates arranged in the shape of a scallop are formed in a straight line, the moving directions of the soil and the like scooped at the edges become substantially parallel, so The hardener was hardly mixed, and efficient stirring could not be expected.
[0004]
Accordingly, an object of the present invention is to provide a stirring bucket attachment in which stirring efficiency is significantly increased.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides, in an excavation outer frame having a connection stay to an earthworking machine main body, a plurality of stir plates having a predetermined scooping width at a predetermined interval in a child shape. In the stirrer bucket attachment for the earthmoving machine arranged, the stirrer plate of each stage tilts its upper surface downward at a predetermined angle toward the earth and sand pressure side of the excavation outer frame, and the stirrer plate of each stage moves inside the excavation outer frame. And a stirrer is fixed so as to form a V-shape or a waveform, and the stirring edges on the front side and / or the rear side of each stirring plate are formed with irregularities.
[0006]
[Action]
Since the agitating plates of each stage of the agitating bucket are inclined downward inward in a V-shape, the soil and soil improvement treatment agent passing between the agitating plates are mixed while being sent out to the inside of the excavation frame of the bucket. You.
[0007]
Since the stirring plates of each stage are arranged in a V-shape, the vertical width of the stirring of each stage becomes deep, and preferably, a circular arc-shaped concave surface is formed on the front and / or rear stirring edges of each stirring plate. Since it is formed, when passing between the stirring plates, the earth and sand, the treatment agent, and the like are diffused along the circular concave edge on the near concave surface, and concentrated along the circular concave edge on the rear concave surface. Since the diffusion and concentration occur alternately and continuously by the plurality of agitating plates, the earth and sand and the treatment agent are evenly mixed.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a front view of a stirring bucket according to the present invention as viewed from the near side, and FIG. 2 is a left side view.
The stirring bucket 1 has an excavating outer frame 1 ′ including left and right vertical frames 2a, 2b, an upper horizontal frame 3, and a lower horizontal frame 4 arranged at a predetermined scooping width. The upper horizontal frame 3 is connected to a connecting portion 5 to an arm (not shown) of the earth moving machine main body, and the lower horizontal frame 4 is provided with a plurality of excavating claws 6 at predetermined intervals.
Further, a reinforcing frame 7 parallel to the vertical frames 2a and 2b is fixed between the upper horizontal frame 3 and the lower horizontal frame 4 between the left and right vertical frames 2a or 2b and the reinforcing frame 7. A plurality of agitating plates 8 are integrally formed between the upper horizontal frame 3 and the reinforcing frame 7 or between the left and right vertical frames 2a or 2b and the lower horizontal frame 4 with a predetermined interval 9 therebetween. It is arranged.
[0009]
The agitating plate 8 of each stage has a scooping surface, that is, an upper surface 8 ', which is inclined downward at a predetermined angle toward the near side of the outer digging frame 1', and the agitating plate 8 of each stage has the digging outer plate 1 '. To form a V-shape or corrugation in the space between the left and right vertical frames 2a or 2b and the reinforcing plate 7, between the upper horizontal frame 3 and the reinforcing plate 7, or the left and right vertical frames 2a or 2b as described above. And lower horizontal frame 4 respectively.
Each V-shaped stirring plate 8 is preferably such that the lower end of the upper V-shape is located lower than the upper end of the lower V-shaped stirrer, as shown in the figure, whereby the upper and lower stirring plates 8, 8 are excavated outer frame 1 '. Are arranged so as to partially overlap in the transverse direction.
[0010]
Further, the stirring edges on the front side and / or the rear side of each stirring plate 8 are formed with irregularities or waveforms.
The figure exemplifies the most preferred embodiment of the present invention. In this embodiment, both the front side edge and the rear side edge of each agitating plate 8 are formed with irregularities or waveforms, and the concave portions on the edges are formed in an arc shape. It is formed.
[0011]
As described above, the ground improving treatment agent such as the earth and sand and the hardening agent can be agitated as shown by arrows in FIG. At the front side edge of the plate 8, while being diffused to the surroundings along each arc-shaped concave edge, it is scooped, and at the rear side edge, it is discharged while being concentrated on the arc-shaped concave edge.
Since the irregularities are continuously formed on the edge of each stirring plate 8, the above-mentioned diffusion-concentration occurs in the entire region in the longitudinal direction of the stirring plate, so that the soil and the treatment agent are efficiently mixed.
[0011]
【Example】
In the embodiment shown in the figure, the case where both the front side and the rear side edge of the stirring plate 8 are made uneven is shown. However, even if only one of the edges is made uneven, a reasonable mixing efficiency can be obtained.
Although the figure illustrates a case where the concave portion on the edge is formed in an arc shape, a concave portion having another shape, for example, a concave portion on the front side edge may be formed in an inverted V shape, and a concave portion on the rear side edge may be formed in a V shape. e.
[0012]
【effect】
Since the stirring bucket of the present invention has a plurality of stirring plates arranged in a V-shape in the outer frame of the excavation, the depth of stirring of the soil and soil improvement treatment agent by each stirring plate is deep, and the upper and lower stirring plates Since an overlapping portion is generated in the stirring area, the stirring efficiency is good.
[0013]
By forming irregularities on the stirring edge of the stirring plate, and in particular, by forming the edge recesses in an arc shape, diffusion-concentration of the mixture is caused in a wide range, and the stirring efficiency is dramatically improved.
[Brief description of the drawings]
FIG. 1 is a front view of an excavating pressure receiving side of a stirring bucket attachment according to the present invention. FIG. 2 is a left side view of FIG. 1 FIG.
DESCRIPTION OF SYMBOLS 1 ... Stirring bucket, 1 '... Excavation outer frame, 2a, 2b ... Vertical frame, 3 ... Upper side frame, 4 ... Lower side frame, 5 ... Connection part, 6 ... Excavation claw, 7 ... Reinforcement frame, 8 ... Stirring plate, 9: gap, 10: concave edge.

Claims

In an excavating outer frame having a connection portion to an earthworking machine main body, a plurality of stirrers having a predetermined scooping width are arranged in a slug shape at a predetermined interval in a stirrer bucket attachment for an earthworking machine. The stirrer plate is fixed so that the upper surface thereof is inclined downward at a predetermined angle toward the earth and sand pressure side of the excavation outer frame, and the stirrer plate of each stage forms a V shape or a waveform in the excavation outer frame. And a stirring bucket attachment for an earth-moving machine, wherein a stirring edge on a front side and / or a rear side of each stirring plate is formed unevenly.

2. A stirring bucket attachment for an earth moving machine according to claim 1, wherein a concave edge of a stirring edge of the stirring plate is formed in an arc shape.