JP2011080201A - Agitating device for soil improvement - Google Patents
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本願発明は、地盤改良において、掘削土砂を撹拌破砕すると共に土砂と固化材とを撹拌混合するための撹拌装置に関する。 The present invention relates to an agitation device for agitating and crushing excavated earth and sand while agitating and mixing the earth and solidified material in ground improvement.
従来、この種の撹拌装置として、下記の特許文献１に示すように、下端に掘削羽根（４）を有する回転軸（１）の適所に、周囲の地盤に両端部を食いこませて回り止めする横軸（１０）のボスを回転自在に被嵌し、上記掘削羽根（４）上に、上面に２枚の撹拌羽根を突出する２個の撹拌摩擦車（１４）、（１４）を回転自在に軸支すると共に、上記回り止め横軸（１０）のボスに駆動摩擦車（１６）を固定し、上記撹拌摩擦車（１４）、（１４）の外周面を駆動摩擦車（１６）の外周面に接した状態で、上記回転軸（１）の回転により上記撹拌摩擦車（１４）、（１４）を公転させつつ、駆動摩擦車（１６）との接触により自転させて撹拌を行うものが知られている。 Conventionally, as a stirring device of this type, as shown in Patent Document 1 below, both ends of the rotating shaft (1) having a drilling blade (4) at the lower end are bitten into the surrounding ground to prevent rotation. The boss of the horizontal axis (10) is rotatably fitted, and the two stirring friction wheels (14) and (14) are projected on the excavation blade (4) with two stirring blades protruding on the upper surface. The drive friction wheel (16) is fixed to the boss of the detent horizontal shaft (10), and the outer peripheral surfaces of the stirring friction wheels (14), (14) are fixed to the drive friction wheel (16). Agitating by rotating the agitating friction wheel (14), (14) by rotation of the rotating shaft (1) and rotating by contact with the driving friction wheel (16) while being in contact with the outer peripheral surface. It has been known.
しかし、上記摩擦車式撹拌装置では、撹拌車及び駆動車の摩擦による磨耗が甚だしく、その補修整備に費用がかさむばかりでなく、撹拌車のスリップが生じ易く、撹拌に支障を来す欠点があった。 However, the friction stirrer with the above-mentioned friction wheel has a problem that the stirrer and the drive wheel are worn by friction, and the repair and maintenance of the stirrer are not only expensive. It was.
これを改善するため、特許文献２に示すように、下端に掘削羽根（２）を有する回転軸（１）に、周囲の地盤に両端部を食いこませて回り止めとする横軸（４）のボスを回転自在に被嵌し、上記回り止め横軸（４）に、複数本撹拌棒（１３）…を放射状に突設された撹拌筒（１２）、（１２）を回転自在に被嵌すると共に、上記回転軸（１）に２本の回転駆動棒（１４）、（１４）を突設し、上記回転軸（１）の回転により上記駆動棒（１４）、（１４）が回転しつつ上記撹拌棒（１３）…を順次押して回転させ、該駆動棒（１４）、（１４）及び撹拌棒（１３）…の各回転により撹拌を行うものが提案された。 In order to improve this, as shown in Patent Document 2, the horizontal axis (4) is used to prevent rotation by biting both ends of the surrounding ground into the rotating shaft (1) having the excavating blade (2) at the lower end. The boss is rotatably fitted, and the stirrer cylinders (12) and (12) in which a plurality of stirring rods (13) are radially protruded from the detent horizontal shaft (4) are rotatably fitted. At the same time, two rotary drive rods (14) and (14) are projected from the rotary shaft (1), and the drive rods (14) and (14) are rotated by the rotation of the rotary shaft (1). While the agitation rods (13) are sequentially pushed and rotated, the drive rods (14), (14) and the agitation rods (13).
しかし、上記提案例では、撹拌棒（１３）…の回転速度が、回転軸（１）の１回転で撹拌棒（１３）２本を押すだけの極めて遅速な回転であるため、撹拌効率が極めて低い難点があった。 However, in the above proposed example, since the rotation speed of the stirring rods (13) is extremely slow enough to push the two stirring rods (13) by one rotation of the rotating shaft (1), the stirring efficiency is extremely high. There was a low difficulty.
本願発明は、撹拌車のスリップは全くなく、確実に回転して広範囲のスペースを撹拌し、しかも撹拌車が従来より早く回転して効率の良い撹拌を行うことのできる撹拌装置を提供することを課題とする。 The present invention provides a stirrer in which the stirrer does not slip at all, reliably rotates to stir a wide range of space, and the stirrer rotates faster than before to perform efficient stirring. Let it be an issue.
上記課題解決の手段として、本発明者は、車輪の外周部に多数本のピンを突設してなるピン車を撹拌車及び駆動車に使用し、その多数ピンを撹拌ピン及び回転伝達手段として利用することに着想したもので、まず本願第１発明は、 As means for solving the above problems, the present inventor uses a pin wheel formed by projecting a large number of pins on the outer peripheral portion of a wheel for a stirring wheel and a driving wheel, and uses the large number of pins as a stirring pin and a rotation transmission means. The first invention of this application
下端部に複数本の掘削羽根を放射状に突設してなる回転軸において、
上記掘削羽根の上位において、上記回転軸に回転自在に被嵌されたボスに、先端部を周囲の地盤に食いこませて回り止めとすべき複数本の回り止めアームを放射状に突設し、
上記回り止めアームのボスに、車輪外周部に多数本のピンを突設してなる駆動ピン車を同心的に固定し、
上記複数本の掘削羽根上に、車輪外周部に多数本のピンを突設してなる撹拌ピン車を、それぞれ回転自在に軸支すると共に、各撹拌ピン車のピンを上記駆動ピン車のピンとそれぞれかみ合わせた、
地盤改良用撹拌装置を提案する。
In the rotary shaft formed by projecting a plurality of excavation blades radially at the lower end,
In the upper part of the excavating blade, a plurality of detent arms that project into the surrounding ground by biting the tip into the surrounding boss and projecting radially to the boss that is rotatably fitted to the rotation shaft,
A drive pin wheel formed by projecting a large number of pins on the outer periphery of the wheel is concentrically fixed to the boss of the detent arm,
On each of the plurality of excavating blades, a stirring pin wheel formed by projecting a plurality of pins on the outer periphery of the wheel is rotatably supported, and the pin of each stirring pin wheel is a pin of the driving pin wheel. Meshed with each other,
A stirrer for ground improvement is proposed.
本願第２発明は、
下端部に複数本の掘削羽根を放射状に突設してなる回転軸において、
上記掘削羽根の上位において、上記回転軸に回転自在に被嵌されたボスに、先端部を周囲の地盤に食いこませて回り止めとすべき複数本の回り止めアームを放射状に突設し、
上記回り止めアームの下位において、上記回転軸に、車輪外周部に多数本のピンを突設してなる駆動ピン車を同心的に固定し、
上記複数本の回り止めアームに、車輪外周部に多数本のピンを突設してなる撹拌ピン車を、それぞれ回転自在に軸支すると共に、各撹拌ピン車のピンを上記駆動ピン車のピンとそれぞれかみ合わせた、
地盤改良用撹拌装置を提案する。
The second invention of the present application is
In the rotary shaft formed by projecting a plurality of excavation blades radially at the lower end,
In the upper part of the excavating blade, a plurality of anti-rotation arms projecting radially into the boss, which is rotatably fitted to the rotation shaft, should be inserted into the surrounding ground to prevent rotation, and project radially.
A drive pin wheel formed by projecting a plurality of pins on the outer peripheral portion of the wheel is concentrically fixed to the rotating shaft below the detent arm,
The agitating pin wheel formed by projecting a plurality of pins on the outer periphery of the wheel on the plurality of detent arms is rotatably supported, and the pin of each agitating pin wheel is a pin of the driving pin wheel. Meshed with each other,
A stirrer for ground improvement is proposed.
本願第１及び第２発明の地盤改良用撹拌装置によれば、撹拌ピン車と駆動ピン車のピン同志のかみ合いによりスリップの無い確実なかみ合いを継続することができると共に、撹拌ピン車は駆動ピン車とのかみ合いにより回転して、その多数本のピンにより撹拌を遂行することができ、しかも撹拌ピン車の多数本のピンと駆動ピン車の多数本のピンとのかみ合いにより、撹拌ピン車は、従来装置よりも早い回転速度で回転することができ、それにより効率の良い有効撹拌を行うことができるのである。 According to the ground improvement agitating device of the first and second inventions of the present application, the agitating pin wheel can continue the positive engagement without slipping by the engagement of the agitating pin wheel and the driving pin wheel, and the agitating pin wheel is a driving pin. It can be rotated by meshing with the car, and agitation can be performed by the many pins, and the agitation pin wheel is conventionally engaged by the numerous pins of the agitation pin wheel and the many pins of the drive pin car. It can rotate at a rotational speed faster than that of the apparatus, thereby enabling efficient effective stirring.
本願第１及び第２発明における「撹拌ピン車」は、２本に限らず３本又は４本の掘削羽根の上に、又は回り止めアームにそれぞれ回転自在に軸支し、これら３個又は４個の撹拌ピン車を駆動ピン車にそれぞれかみ合わせた構成にすることもできる。 The “stirring pin wheel” in the first and second inventions of the present application is not limited to two, but is rotatably supported on three or four excavating blades or on a detent arm, respectively. A configuration in which a single stirring pin wheel is engaged with a driving pin wheel can also be employed.
以下図面を参照して本願第１発明の実施例について詳述する。図１において、中空回転軸（１）の下端にビット（２）を下向きに突設し、そのやや上位に２本のプロペラ形掘削羽根（３）、（３）を放射状に突設し、さらに上記掘削羽根（３）、（３）と適宜間隔をあけた上位に、ボス（４）を回転軸（１）に対し回転自在に被嵌し、該ボス（４）の外周面に、２本の回り止めアーム（５）、（５）を放射状に突設し、この掘削羽根（３）、（３）と回り止めアーム（５）、（５）の間に本発明の撹拌装置（Ａ）が装備されている。（６）…は、上記回り止めアーム（５）、（５）上位の回転軸（１）外周面に突設されたプロペラ形撹拌羽根、（７）は回転軸（１）上端の接続用オス継手、（１７）は回転軸（１）下端部の固化材吐出口である。 Embodiments of the first invention of the present application will be described in detail below with reference to the drawings. In FIG. 1, a bit (2) is projected downward at the lower end of the hollow rotary shaft (1), and two propeller-shaped drilling blades (3), (3) are radially projected at a slightly higher position. A boss (4) is rotatably fitted with respect to the rotating shaft (1) at an upper position appropriately spaced from the excavation blades (3) and (3), and two bosses (4) are provided on the outer peripheral surface of the boss (4). The non-rotating arms (5) and (5) are radially projected, and the stirring device (A) of the present invention is provided between the excavating blades (3) and (3) and the non-rotating arms (5) and (5). Is equipped. (6)... Are the above-mentioned detent arm (5), (5) upper rotating shaft (1) propeller-type stirring blade projecting on the outer peripheral surface, (7) is a connecting male at the upper end of the rotating shaft (1) The joint (17) is a solidified material discharge port at the lower end of the rotating shaft (1).
上記撹拌装置（Ａ）は、本例では、２個の撹拌ピン車（８）、（８）と、これらがかみ合う駆動ピン車（９）とからなる。撹拌ピン車（８）、（８）は、切頭円錐状の車輪（１０）の円錐状斜面に多数本のピン（１１）…（本例では６本）を等間隔で放射状に突設したもので、これを上記掘削羽根（３）、（３）上に突設されたブラケット（１２）、（１２）に、切頭面を上に向けた状態で、軸（１３）、（１３）により回転軸（１）横断平面上で回転自在に軸支してある。 In this example, the stirring device (A) includes two stirring pin wheels (8) and (8) and a driving pin wheel (9) in which these are engaged. In the stirring pin wheels (8) and (8), a large number of pins (11) (six in this example) project radially at equal intervals on the conical slope of the truncated conical wheel (10). With the brackets (12) and (12) protruding on the excavation blades (3) and (3), the shafts (13) and (13) Thus, the rotary shaft (1) is rotatably supported on a transverse plane.
上記駆動ピン車（９）は、同じく切頭円錐状の車輪（１４）の円錐状斜面に多数本のピン（１５）…（本例では８本）を等間隔で放射状に突設したもので、この車輪（１４）を、上記回り止めアーム（５）、（５）の下位において、切頭面を下に向けた状態で、回転軸（１）に回転自在に被嵌すると共に、上記回り止めアームのボス（４）にボルト（１６）‥により固定し、そのピン（１５）…を上記撹拌ピン車（８）、（８）のピン（１１）…、（１１）…とかみ合わせている。 The drive pin wheel (9) has a large number of pins (15) (eight in this example) projecting radially at equal intervals on the conical slope of the truncated conical wheel (14). The wheel (14) is rotatably fitted to the rotating shaft (1) with the truncated surface facing downward at the lower part of the detent arm (5), (5). It fixes to the boss | hub (4) of a stop arm with the volt | bolt (16) ..., The pin (15) ... is meshed with the pins (11) ..., (11) ... of the agitating pin wheel (8), (8). .
上記撹拌ピン車（８）、（８）及び駆動ピン車（９）の各ピン（１１）…、（１５）…は、図３（イ）に撹拌ピン車（８）のピン（１１）…を例示するように、ピン（１１）の基部にオネジ部（１８）を設け、これを車輪（１０）に設けたメネジ孔（１９）に螺合するようにしてある。又、同図（ロ）に示すように車輪（１０）のピン孔（２０）にピン（１１）の基部を嵌入し、テーパーピン（２１）を打ちこんで固定してもよい。それにより激しい撹拌時に損傷したピンの付け替えを容易化している。 The pins (11),..., (15) of the agitating pin wheel (8), (8) and the driving pin wheel (9) are shown in FIG. The male screw part (18) is provided in the base part of the pin (11), and this is screwed into the female screw hole (19) provided in the wheel (10). Further, as shown in FIG. 5B, the base of the pin (11) may be fitted into the pin hole (20) of the wheel (10), and the taper pin (21) may be driven and fixed. This facilitates replacement of damaged pins during intense stirring.
さらにピン取付構造の他の例として、図４（ハ）は、車輪（１０）のピン孔（２０）に、基端をテーパー面（２２）に形成したピン（１１）と、その基端側に、上記テーパー面（２２）と同一傾斜のテーパー面（２３）を有するコマ（２４）とを隣接して挿入し、そしてピン（１１）に回転自在に縦通されたヘッドつきネジ棒（２５）を上記コマ（２４）に螺合し、該ネジ棒（２５）の回し操作によりピン（１１）、コマ（２４）をピン孔（２０）面に圧接させるものである。同図（ニ）は、車輪（１０）のピン孔（２０）に、基部を中空開放端に形成したピン（１１）と、上記中空開放端に当接した切頭円錐体のコレット（２６）とを挿入し、上記ピン（１１）に回転自在に縦通されたヘッドつきネジ棒（２５）を上記コレット（２６）に螺合し、該ネジ棒（２５）の回し操作によりコレット（２６）を外方へ移動させ、ピン（１１）の中空開放部分を拡開させてピン孔（２０）面に圧接させるものである。同図（ホ）は、車輪（１０）の下面を、ピン孔（２０）と連通状態に開口し、該開口に、山形突条（２８）を有する座金（２７）を上下動自在に嵌合し、ピン（１１）の基部に、上記山形突条（２８）に対応する谷形環状溝（２９）を形成し、ボルト（３０）をゆるめて押え板（３１）を持ち上げた状態で、ピン（１１）をピン孔（２０）に挿入し、座金（２７）の山形突条（２８）に谷形溝（２９）を係合した後、ボルト（３０）を締めて押え板（３１）を押し下げて上記突条（２８）と溝（２９）の係合を押圧するものである。 As another example of the pin mounting structure, FIG. 4 (C) shows a pin (11) having a base end formed in a tapered surface (22) in a pin hole (20) of a wheel (10), and a base end side thereof. A top (24) having a taper surface (23) having the same inclination as that of the taper surface (22) is inserted adjacently, and a screw rod (25 with a head) is passed through the pin (11) in a rotatable manner. ) Are screwed into the frame (24), and the pin (11) and the frame (24) are pressed against the surface of the pin hole (20) by turning the screw rod (25). The figure (D) shows a pin (11) having a base formed at a hollow open end in a pin hole (20) of a wheel (10), and a collet (26) of a truncated cone contacting the hollow open end. Are inserted into the collet (26), and the collet (26) is turned by rotating the screw rod (25). Is moved outward, and the hollow open part of the pin (11) is expanded and pressed against the surface of the pin hole (20). In the figure (e), the lower surface of the wheel (10) is opened in communication with the pin hole (20), and a washer (27) having an angled protrusion (28) is fitted to the opening so as to be movable up and down. Then, in the base of the pin (11), a valley-shaped annular groove (29) corresponding to the mountain-shaped protrusion (28) is formed, the bolt (30) is loosened, and the presser plate (31) is lifted, (11) is inserted into the pin hole (20), and the trough groove (29) is engaged with the chevron ridge (28) of the washer (27), and then the bolt (30) is tightened to hold the presser plate (31). It is pushed down to press the engagement between the ridge (28) and the groove (29).
上例の作用を作業とともに説明する。マストに昇降自在に支持された回転駆動装置の出力軸に撹拌ロッドの上端を接続し、該ロッドの下端に本発明の撹拌装置（Ａ）をオス継手（７）を介して接続する。 The operation of the above example will be described together with the work. The upper end of the stirring rod is connected to the output shaft of the rotary drive device supported by the mast so as to be movable up and down, and the stirring device (A) of the present invention is connected to the lower end of the rod through the male joint (7).
回転駆動装置の始動により撹拌ロッド及び撹拌装置（Ａ）を回転させて改良すべき地盤にビット（２）、掘削羽根（３）、（３）により掘削を開始する。上記掘削羽根（３）、（３）の回転に伴い撹拌ピン車（８）、（８）が公転し、一方回り止めアーム（５）、（５）が周囲の地盤にアーム先端部を食いこませて回り止め状態となり、それに伴い駆動ピン車（９）が静止状態となり、かくして上記の公転する撹拌ピン車（８）、（８）が駆動ピン車（９）とのかみ合いにより自転しつつ公転して、そのピン（１１）…、（１１）…により撹拌を行うこととなる。 By starting the rotation drive device, the stirring rod and the stirring device (A) are rotated to start excavation on the ground to be improved by the bit (2) and the excavating blades (3) and (3). As the excavation blades (3) and (3) rotate, the agitating pin wheels (8) and (8) revolve, while the non-rotating arms (5) and (5) bite the tip of the arm into the surrounding ground. Accordingly, the drive pin wheel (9) is brought into a stationary state, and accordingly, the revolving stirring pin wheel (8), (8) revolves while rotating due to the engagement with the drive pin wheel (9). Then, stirring is performed by the pins (11), (11).
その際、撹拌ピン車（８）、（８）は縦孔（Ｈ）内の全域にわたって隈なく公転して撹拌を行うと共に、撹拌ピン車（８）、（８）は、駆動ピン車（９）との多数本のピン（１１）…とピン（１５）…とのかみ合いによって相当早い速度で回転して有効な撹拌を行う。 At that time, the agitation pin wheels (8), (8) revolve all over the longitudinal hole (H) to perform agitation, and the agitation pin wheels (8), (8) are driven pin wheels (9). ) And a large number of pins (11)... And pins (15).
そこで、上記掘削羽根（３）、（３）により掘削された土砂は上方へ送られ、そこで自転しつつ公転する撹拌ピン車（８）、（８）の多数本のピン（１１）…、（１１）…による有効な撹拌破砕を受ける。 Therefore, the earth and sand excavated by the excavating blades (3) and (3) are sent upward, and a number of pins (11) of the agitating pin wheel (8), (8) revolving while rotating there, (, 11) Subjected to effective crushing by.
上記掘削、撹拌とともに、吐出口（１７）からセメントミルク等の固化材を吐出すれば、該固化材と掘削土砂を撹拌ピン車（８）、（８）の多数ピン（１１）…、（１１）…により撹拌混合され、良質のソイルセメントに形成される。 If the solidified material such as cement milk is discharged from the discharge port (17) together with the excavation and stirring, the solidified material and the excavated earth and sand are removed from the multiple pins (11) of the stirring pin wheels (8), (8) (11). ) ... to form a high-quality soil cement.
なお、上記撹拌ピン車（８）、（８）により撹拌破砕された土砂及び撹拌混合された固化材と土砂の混合物は、撹拌ピン車（８）、（８）の真上に位置する回り止めアーム（５）、（５）に打ちつけられて、さらに撹拌、破砕、混合を受け、さらにその上位の撹拌羽根（６）…により撹拌を受ける。 In addition, the earth and sand agitated and crushed by the agitation pin wheels (8) and (8) and the mixture of the solidified material and earth and sand agitated and mixed are detents located directly above the agitation pin wheels (8) and (8). It is struck by the arms (5) and (5), and further stirred, crushed and mixed, and further stirred by the upper stirring blade (6).
本願第２発明の実施例を図５、６に示す。回り止めアーム（５ａ）…の下位において、回転軸（１ａ）に駆動ピン車（９ａ）をキー（２１ａ）により回転不能に固定し、撹拌ピン車（８ａ）は、本例では２本の回り止めアーム（５ａ）、（５ａ）…の各下面に固定された２個のブラケット（１２ａ）、（１２ａ）にそれぞれ回転自在に軸支された２個からなり、各撹拌ピン車（８ａ）、（８ａ）の各ピン（１１ａ）…、（１１ａ）…を上記駆動ピン車（９ａ）のピン（１５ａ）…とそれぞれかみ合わせてある。 An embodiment of the second invention of the present application is shown in FIGS. Below the detent arm (5a), the drive pin wheel (9a) is fixed to the rotating shaft (1a) by the key (21a) so as not to rotate, and the stirring pin wheel (8a) has two rotations in this example. It consists of two brackets (12a), (12a) that are fixed to the lower surfaces of the stop arms (5a), (5a). The pins (11a),... (11a),... Of (8a) are engaged with the pins (15a),.
本例では、回転軸（１ａ）の回転により駆動ピン車（９ａ）が回転し、それとかみ合う２個の撹拌ピン車（８ａ）、（８ａ）をそれぞれ回転させて各ピン（１１ａ）…により撹拌を行なう。 In this example, the drive pin wheel (9a) is rotated by the rotation of the rotating shaft (1a), and the two stirring pin wheels (8a) and (8a) engaged therewith are respectively rotated and stirred by the respective pins (11a). To do.
本願第１及び第２発明における撹拌ピン車（８）、（８ａ）及び駆動ピン車（９）、（９ａ）は、図１に示すようにピン（１１）の軸心線と回転軸（１）の軸心線とのなす角度（ｄ1）、及びピン（１５）の軸心線と回転軸（１）の軸心線とのなす角度（ｄ2）は、
ｄ1，ｄ2＝約５°〜８５°
の角度範囲にあることが望ましい。上記角度範囲におくことにより、
(1) ｄ1，ｄ2＝９０°のとき、かみ合うピン（１１）…とピン（１５）…が水平面上に位置し、それらピン（１１）…、（１５）…上に残った礫等をピン（１１）…、（１５）…の間にかみ込むおそれが生じるが、そのようなおそれを除く。
(2) ピン（１１）…、（１５）…の長さを長くすることができる。
The stirring pin wheels (8), (8a) and the drive pin wheels (9), (9a) in the first and second inventions of the present application are shown in FIG. the angle between the axial line of the) (d 1), and pins (angle (d 2 between the axial line of the axial line and the rotation axis 15) (1)), the
d 1 , d 2 = about 5 ° to 85 °
It is desirable to be in the angle range. By placing it in the above angle range,
(1) When d 1 and d 2 = 90 °, the engaging pin (11) and the pin (15) are positioned on the horizontal plane, and the gravel remaining on the pins (11), (15), etc. May be pinched between the pins (11), (15), but this fear is excluded.
(2) The length of the pins (11), (15), can be increased.
Ａ、Ａａ 撹拌装置
１、１ａ 回転軸
３、３ａ 掘削羽根
４、４ａ ボス
５、５ａ 回り止めアーム
８、８ａ 撹拌ピン車
９、９ａ 駆動ピン車
１１、１１ａ、１５、１５ａ ピン
A, Aa Stirrer 1, 1a Rotating shaft 3,
Claims (2)
上記掘削羽根の上位において、上記回転軸に回転自在に被嵌されたボスに、先端部を周囲の地盤に食いこませて回り止めとすべき複数本の回り止めアームを放射状に突設し、
上記回り止めアームのボスに、車輪外周部に多数本のピンを突設してなる駆動ピン車を同心的に固定し、
上記複数本の掘削羽根上に、車輪外周部に多数本のピンを突設してなる撹拌ピン車を、それぞれ回転自在に軸支すると共に、各撹拌ピン車のピンを上記駆動ピン車のピンとそれぞれかみ合わせた、
地盤改良用撹拌装置。 In the rotary shaft formed by projecting a plurality of excavation blades radially at the lower end,
In the upper part of the excavating blade, a plurality of detent arms that project into the surrounding ground by biting the tip into the surrounding boss and projecting radially to the boss that is rotatably fitted to the rotation shaft,
A drive pin wheel formed by projecting a large number of pins on the outer periphery of the wheel is concentrically fixed to the boss of the detent arm,
On each of the plurality of excavating blades, a stirring pin wheel formed by projecting a plurality of pins on the outer periphery of the wheel is rotatably supported, and the pin of each stirring pin wheel is a pin of the driving pin wheel. Meshed with each other,
A stirrer for ground improvement.
上記掘削羽根の上位において、上記回転軸に回転自在に被嵌されたボスに、先端部を周囲の地盤に食いこませて回り止めとすべき複数本の回り止めアームを放射状に突設し、
上記回り止めアームの下位において、上記回転軸に、車輪外周部に多数本のピンを突設してなる駆動ピン車を同心的に固定し、
上記複数本の回り止めアームに、車輪外周部に多数本のピンを突設してなる撹拌ピン車を、それぞれ回転自在に軸支すると共に、各撹拌ピン車のピンを上記駆動ピン車のピンとそれぞれかみ合わせた、
地盤改良用撹拌装置。 In the rotary shaft formed by projecting a plurality of excavation blades radially at the lower end,
In the upper part of the excavating blade, a plurality of detent arms that project into the surrounding ground by biting the tip into the surrounding boss and projecting radially to the boss that is rotatably fitted to the rotation shaft,
A drive pin wheel formed by projecting a plurality of pins on the outer peripheral portion of the wheel is concentrically fixed to the rotating shaft below the detent arm,
The agitating pin wheel formed by projecting a plurality of pins on the outer peripheral portion of the wheel on the plurality of detent arms is rotatably supported, and the pin of each agitating pin wheel is a pin of the driving pin wheel. Meshed with each other,
A stirrer for ground improvement.
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| JP2017020179A (en) * | 2015-07-07 | 2017-01-26 | 株式会社テノックス九州 | Drilling and agitation device with corotation prevention blade |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02197616A (en) * | 1989-01-26 | 1990-08-06 | Shinta Kubo | Double rotary ring drill head and rolled-fill wall column |
| JPH08120665A (en) * | 1994-10-19 | 1996-05-14 | Morihide Hashimoto | Ground improvement apparatus |
| JP2002038461A (en) * | 2000-07-21 | 2002-02-06 | Magata:Kk | Ground stabilizing device and its method |
| JP2003321831A (en) * | 2002-05-07 | 2003-11-14 | Magata:Kk | Ground improvement device and ground improvement method |
| JP2009203711A (en) * | 2008-02-28 | 2009-09-10 | Raito Kogyo Co Ltd | Soil improving apparatus |
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2009
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02197616A (en) * | 1989-01-26 | 1990-08-06 | Shinta Kubo | Double rotary ring drill head and rolled-fill wall column |
| JPH08120665A (en) * | 1994-10-19 | 1996-05-14 | Morihide Hashimoto | Ground improvement apparatus |
| JP2002038461A (en) * | 2000-07-21 | 2002-02-06 | Magata:Kk | Ground stabilizing device and its method |
| JP2003321831A (en) * | 2002-05-07 | 2003-11-14 | Magata:Kk | Ground improvement device and ground improvement method |
| JP2009203711A (en) * | 2008-02-28 | 2009-09-10 | Raito Kogyo Co Ltd | Soil improving apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017020179A (en) * | 2015-07-07 | 2017-01-26 | 株式会社テノックス九州 | Drilling and agitation device with corotation prevention blade |
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