JPS61183522A - Self-propelling type excavator - Google Patents

Abstract

PURPOSE:To decrease the size of a machine and to reduce a term of works, by a method wherein a vertically slidable excavating mechanism and a trench processing mechanism are provided, soil is discharged as a trench is continuously excavated, and concrete is pressed therein to build an underground wall. CONSTITUTION:A chain 21 for cutter and a excavating blade 22 are rotated in a given direction, an excavating mechanism 15 is gradually lowered to start excavation, and a trench is continuously excavated as a self-running vehicle 1 is advanced. Both side edges of a support plate 32 of a trench processing mechanism 30 are slightly bent backward, concrete is pressed in for injection, and an underground wall of concrete is built simultaneously with excavation of the trench. When excavation of the trench is completed, the excavating mechanism 15 and the trench processing mechanism 30 are raised to a raising end position and is moved to other spot. This reduces an occupying area during a work, enables excavation of the trench at a limited space, and permits utilization of the filling reaction force of concrete as the advancing force of a machine.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 この発明は上下水道管や電気ケーブルなどを敷設するた
めの溝を連続的に掘削すると同時にこの掘削溝にコンク
リートを注入して地中壁を構築する自走式掘削機に関す
る。[Detailed Description of the Invention] <Industrial Application Field> This invention continuously excavates trenches for laying water and sewage pipes, electric cables, etc., and at the same time pours concrete into the excavated trenches to form underground walls. Concerning the construction of self-propelled excavators.

〈従来の技術） 一般に都市部において、上下水道や側溝、電力、通信ケ
ーブルの洞道等地面へ溝を掘削する場合は、在来より締
め固められた土壌の他、砂礫が混入した硬質な道路を掘
削しなければならないため、比較的大きな掘削力を有す
るショベル掘削機を使用することが多い。<Conventional technology> Generally, in urban areas, when excavating trenches in the ground for water supply and sewerage, side ditches, power and communication cable tunnels, etc., in addition to the conventionally compacted soil, hard roads mixed with sand and gravel are used. Because it is necessary to excavate the ground, a shovel excavator with a relatively large digging force is often used.

しかし、ショベル掘削機は車体が大きい上に、掘削土砂
を運搬車両に積載する際駆動体を旋回しなければならず
、作業半径が大きくなって交通障害を起すなどの不具合
がある。However, the excavator excavator has a large body, and the drive body must turn when loading excavated soil onto a transport vehicle, resulting in a large working radius and problems such as traffic obstruction.

また、溝の掘削と掘削土砂の積込みが同一パケットで行
われるため、パケットの幅と長いブームの動作により余
掘りが多く、夫々の作業が間歇的となり単位時間当りの
溝掘削量が少ないなどの欠点があった。In addition, because trench excavation and excavated soil loading are performed in the same packet, there is a lot of over-digging due to the width of the packet and the operation of the long boom, and each work is done intermittently, resulting in a small amount of trench excavation per unit time. There were drawbacks.

このような欠点を解消、するために、運転席を備えた車
体の前部に操向輪を、また後部に駆動輪を有する自走車
両の車体側部に、作業機取付は部材を突験し、こ゛の作
業機取付は部材に揺動シリンダにより、上端側が前後方
向へ揺動自在な揺動リンりを設け、揺動リンクの上部に
はチルトシリンダにより傾動自在な揺動ブラケットを設
け、この揺動ブラケットに平行リンク及びこれら平行リ
ンクの間に斜めに設けたリフトシリンダを介して作業機
支持部材を設けると共に、この作業機支持部材に駆動シ
リンダの往復動により一方向へ回転される複数個のパケ
ットを有する掘削機構及びこの掘削機構の後方に位置し
、かつ掘削機構の掘削反力を支持する掘削反力支持機構
を夫々取付けてなる連続溝掘削機械が提案されている（
例えば特開昭５５−１１９８３４号公報）。In order to eliminate these drawbacks, the steering wheel is installed at the front of the vehicle body equipped with the driver's seat, and the work equipment is mounted on the side of the vehicle body of a self-propelled vehicle that has drive wheels at the rear. To install this work equipment, a swinging cylinder is used to install a swinging link on the member, the upper end of which can swing freely in the front and rear directions, and a swinging bracket that can be tilted freely by a tilt cylinder is installed on the top of the swinging link. A work machine support member is provided on the swing bracket via parallel links and a lift cylinder provided diagonally between these parallel links, and a plurality of work machine support members are provided on the work machine support member to be rotated in one direction by the reciprocating movement of the drive cylinder. A continuous trench excavation machine has been proposed which is equipped with an excavation mechanism having a packet of
For example, Japanese Patent Application Laid-open No. 55-119834).

〈発明が解決しようとする問題点） しかし、このような掘削機械は車体に運転席を具備して
いるため機械の小型化に限度があり、樹木間や、構築物
際や、構築物に囲まれた狭隘場所での溝掘削が不可能で
あるという問題があった。(Problems to be solved by the invention) However, since such excavation machines have a driver's seat in the vehicle body, there is a limit to how compact the machine can be. There was a problem in that it was impossible to dig trenches in narrow spaces.

また、掘削溝は不安定な掘削用パケットの接触の他、経
時的に溝壁部が崩落するため、溝掘削後鍋矢板の打込み
等の土留め壁工事を行う必要があり、工期が長く工費が
高くなるという欠点があつた。In addition, in addition to the unstable contact of excavation packets in excavated trenches, the trench walls collapse over time, so it is necessary to perform earth retaining wall construction such as driving pot piles after trench excavation, which takes a long time and is costly. The disadvantage was that it was expensive.

〈問題点を解決すめための手段〉 この発明は上記の点にかんがみなされたものであって、
以下にその内容を第１図、第２図を用いて説明する。<Means for solving the problems> This invention is made in view of the above points,
The contents will be explained below using FIGS. 1 and 2.

架体（２）の両側部に無限軌道（１３）を有する自走車
両（１）の前部に、ガイド支柱（２３）に案内されて上
下方向に摺動自在な掘削機構（１５）と、該掘削機構（
１５）の後方に対向して位置し且つガイド部材（３７）
に案内されて上下方　　向に摺動自在な前処理機構（３
０）とを具備し、上記掘削機構（１５）はカッター用チ
ェーン（２１）と共に所定方向へ駆動される複数の掘削
刃（２２）を有し、上記前処理機構（３０）は上記掘削
刃（２２）幅と略同じ幅を有する受板（３２）と該受板
（３２）の後部に吸排出管（３４）とを有していて、狭
隘場所で掘削機構（１５）を垂下、前進させて連続的に
溝を掘削し、また、同時に該掘削溝内の掘削土砂の吸出
、或は該掘削溝内へコンクリートを注入充填して、その
充填反力を掘削機の前進力の一部としながら地中壁（５
３）の形成を併行して行い、且つ運転者が搭乗せずに操
作を行う自走式掘削機である。An excavation mechanism (15) that is guided by a guide column (23) and can slide vertically at the front of a self-propelled vehicle (1) having endless tracks (13) on both sides of the frame (2); The excavation mechanism (
15) and is located opposite to the rear of the guide member (37).
The pretreatment mechanism (3
0), the excavation mechanism (15) has a plurality of excavation blades (22) that are driven in a predetermined direction together with a cutter chain (21), and the pretreatment mechanism (30) includes the excavation blades (0). 22) It has a receiving plate (32) having approximately the same width as the receiving plate (32) and a suction/exhaust pipe (34) at the rear of the receiving plate (32), and allows the excavating mechanism (15) to hang down and advance in a narrow place. Continuously excavate a trench, and at the same time suck out the excavated soil in the trench, or inject concrete into the trench, and use the filling reaction force as part of the forward force of the excavator. Underground wall (5
This is a self-propelled excavator that performs the formation of 3) in parallel and is operated without a driver on board.

〈作用〉 次に、その作用を第１図〜第６図に基づいて説明する。<Effect> Next, its operation will be explained based on FIGS. 1 to 6.

自走式掘削機は、待機状態において掘削機構１５と前処
理機構３０とが各々上昇端にあり、夫々の下端は地表面
ＧＬより積上方位置にある（第３図Ａ参照）。In the self-propelled excavator, in the standby state, the excavation mechanism 15 and the pretreatment mechanism 30 are each at the rising end, and the lower ends of each are located above the ground surface GL (see FIG. 3A).

先ず、発電装置４７の始動によって、各モータへの給電
可能状態となる。First, by starting the power generator 47, power can be supplied to each motor.

そして、駆動用モータ４８を起動させて無限軌道１３を
駆動し、操作ハンドル４を操作して掘削機構１５を溝掘
削予定線上に位置させる。Then, the drive motor 48 is activated to drive the endless track 13, and the operation handle 4 is operated to position the excavation mechanism 15 on the trench excavation schedule line.

次に、掘削機構１５を上昇用モータ２９により下降させ
てその下端を接地させる。Next, the excavation mechanism 15 is lowered by the lifting motor 29, and its lower end is brought into contact with the ground.

そして、カッター用モータ２４を起動させて、カッター
用チェーン２１及び掘削刃２２を所定方向（第１図の一
点鎖線矢印の方向）へ回動させる続いて、掘削機構１５
を徐々に下降させて地表面ＧＬより垂直に掘削を開始し
、掘削機構１５の下端が所望の溝深さに達したところで
、自走車輌１を前進させて連続的に溝を掘進する（第３
図Ｂ参照）。Then, the cutter motor 24 is started to rotate the cutter chain 21 and the excavation blade 22 in a predetermined direction (the direction of the dashed-dotted line arrow in FIG. 1).
is gradually lowered to start excavation perpendicular to the ground surface GL, and when the lower end of the excavation mechanism 15 reaches the desired groove depth, the self-propelled vehicle 1 is advanced to continuously excavate the groove (the 3
(See Figure B).

掘削刃２２により掘削された土砂は、掘削刃２２により
上方へ掻き上げられて、更にローラブラシ４３により排
土シュート４６上に掻き落されて、図示してない運搬車
両へ積載される。The earth and sand excavated by the excavation blade 22 is scraped upward by the excavation blade 22, further scraped onto the earth discharge chute 46 by the roller brush 43, and loaded onto a transport vehicle (not shown).

溝掘削が進み溝第理機構３０が降下可能な位置に達した
ら、前処理機構３０を昇降／％ンドル３８で下降させ、
その下端を溝底より僅かに高い位置で停止させる。As the trench excavation progresses and the trench cleaning mechanism 30 reaches a position where it can be lowered, the pretreatment mechanism 30 is lowered using the lift/% handle 38.
Stop the lower end at a position slightly higher than the bottom of the groove.

そして、自走車両ｌの前進に伴って、前処理機構３０の
受板３２の両側縁は後方へ少し折曲されるが、次に説明
するコンクリートが前方へ流出しないように、溝の両側
壁に適宜弾性で接触して隔壁の作用をなし、掘削刃２２
の回転を容易にし、前処理機構３″ｂと溝の各壁面間の
間隙は最小化されている（第１図、第４図参照）。As the self-propelled vehicle l moves forward, both side edges of the receiving plate 32 of the pretreatment mechanism 30 are slightly bent rearward, but the side walls of the groove are The excavating blade 22 acts as a partition by appropriately elastically contacting the excavating blade 22.
The gap between the pretreatment mechanism 3''b and each wall of the groove is minimized (see FIGS. 1 and 4).

次７、図示してないコンクリートポンプ、または、生コ
ンミキサ−車から可撓ホース３６を経由してコンクリー
トが圧入、注入されて、吸排出管３４の吸排出孔３４ａ
から溝処理機構３０後方の溝へコンクリートが充填され
地中壁５３が形成される。この流動性コンクリートの充
填反力は、掘削機構１５を安定に支持すると同時に、自
走車両ｌの前進力の一部を形成している（第３図Ｃ参照
）以上のように溝の掘削と同時にコンクリートの地中壁
形成が伴行して連続的に行われる。Next 7, concrete is press-fitted and injected from a concrete pump (not shown) or a ready mixer truck via a flexible hose 36, and the suction/discharge hole 34a of the suction/discharge pipe 34 is poured.
From there, concrete is filled into the groove behind the groove treatment mechanism 30 to form an underground wall 53. The filling reaction force of this fluid concrete stably supports the excavation mechanism 15, and at the same time forms part of the forward force of the self-propelled vehicle l (see Fig. 3C). At the same time, concrete underground wall formation is carried out continuously.

溝の掘削が完了したら、掘削機構１５と前処理機構３０
とを上昇端位置に上昇させた後、自走式掘削機を自走さ
せるか、または、運搬車に積載して他地点への移動が行
われる。When the trench excavation is completed, the excavation mechanism 15 and the pretreatment mechanism 30
After raising the excavator to the upper end position, the self-propelled excavator is driven by itself, or the excavator is loaded onto a transport vehicle and moved to another location.

尚、上述のコンクリート注入は随意に選択可能である。Note that the above-mentioned concrete pouring can be selected at will.

また、前処理機構３０を掘削溝内に残留した掘削土砂の
吸出に用いる場合は、図示してないバキューム機を可撓
ホース３６を経由して接続し、吸排出孔３４ａに吸口５
１を装着して行われる。In addition, when the pretreatment mechanism 30 is used to suck out excavated soil remaining in the excavated trench, a vacuum machine (not shown) is connected via the flexible hose 36, and the suction port 5 is connected to the suction/discharge hole 34a.
1 is worn.

この時、残留掘削土砂量に合せて前処理機構３０を下降
させ、吸口５１の上下位置を調節する。At this time, the pretreatment mechanism 30 is lowered in accordance with the amount of excavated soil remaining, and the vertical position of the suction port 51 is adjusted.

この掘削土砂の吸出の場合においても、溝掘削と残留掘
削土砂の吸出が同時的に行うことができる（第３図り参
照）。Even in the case of sucking out the excavated earth and sand, trench excavation and suction of the remaining excavated earth and sand can be performed simultaneously (see the third diagram).

を 上述のにうにして溝掘削が行われ、側溝等の小規模のも
のは溝掘削のみを行って、第５図に示すように予じめ形
成されＵ字溝５２を埋設し、その側方を埋戻して側溝が
形成される（図の５６は埋戻し部を示す）。Ditch excavation is performed as described above, and for small-scale things such as side ditches, only trench excavation is performed, and as shown in Fig. 5, the pre-formed U-shaped groove 52 is buried and the side A side groove is formed by backfilling one side (56 in the figure indicates the backfilling part).

また、大形の洞道の掘削は、第６図に示すように予定さ
れる洞道５４側壁の外方に、上述のように本発明の自走
式掘削機により地中壁５３　、５３を形成を１両地中壁
５３間の土砂を排出して洞道５４を形成し、電カケープ
ル５５を敷設して後、上部を埋戻して埋戻し部５６に舗
装を施して洞道が完成される。Furthermore, when excavating a large tunnel, as shown in FIG. 6, underground walls 53, 53 are cut using the self-propelled excavator of the present invention on the outside of the planned tunnel 54 side wall. After forming a tunnel 54 by discharging the earth and sand between the two underground walls 53 and laying an electric cable 55, the upper part is backfilled and the backfilling part 56 is paved to complete the tunnel. Ru.

（発明の効果） 以上説明したようにこの発明の自走式掘削機は、無限軌
道を有する自走車両の前部に、カッター用チェーンで駆
動される複数の掘削刃を具えた掘削機溝を昇降自在に配
設し、この掘削機構の後方に対向して位置し掘削刃より
稍幅広の受板と、この受板の後部に吸排出管とを具えた
前処理機構を昇降自在に配設した構成なので、機械が極
めて小形に形成できる。更に、掘削機構が自走車両の外
方へ張出さないため、作業時の占有面積が小さく構築物
に囲まれた狭隘場所等での溝掘削が可能であり、しかも
安全性が高い。(Effects of the Invention) As explained above, the self-propelled excavator of the present invention has an excavator groove equipped with a plurality of excavating blades driven by a cutter chain in the front part of the self-propelled vehicle having an endless track. A pretreatment mechanism is installed that can be raised and lowered, and is equipped with a receiving plate that is slightly wider than the excavating blade and located opposite to the rear of this excavating mechanism, and a suction and exhaust pipe at the rear of this receiving plate. This configuration allows the machine to be made extremely compact. Furthermore, since the excavation mechanism does not extend outward from the self-propelled vehicle, it occupies a small area during work, making it possible to excavate trenches in narrow places surrounded by structures, and moreover, is highly safe.

更に、無端のカッター用チェーンに取付けられた複数の
硬質の掘削刃により、Ｎ値５０以上の硬質地盤を連続的
、効率的に掘削すると同時に、掘削溝内へコンクリート
を注入して地中壁の形成が併行して行え、溝壁の崩落防
止の土留め壁工事が効率的に実施されて、鋼矢板等が不
要となり、且つ無端のカッター用チェーンは連続回動し
て掘削休止時間がないので、溝掘削速度が極めて速く基
礎工事の工期が半分以下に短縮できる。Furthermore, multiple hard excavation blades attached to an endless cutter chain continuously and efficiently excavate hard ground with an N value of 50 or more, and at the same time, concrete is poured into the excavation trench to form underground walls. Formation can be done in parallel, earth retaining wall construction to prevent trench walls from collapsing can be carried out efficiently, steel sheet piles, etc. are no longer required, and the endless cutter chain rotates continuously so there is no downtime during excavation. , the trench excavation speed is extremely fast, and the foundation construction period can be cut by more than half.

また、掘削溝内への比重２．３の重質流動性コンクリー
トの充填反力が機械の前進力として利用できると共に、
掘削機構を安定して支持することができる。In addition, the reaction force of filling heavy fluid concrete with a specific gravity of 2.3 into the excavated trench can be used as the forward force of the machine, and
The excavation mechanism can be stably supported.

また、溝内に残留した掘削土砂を吸口を用いて排除でき
、地下構造の安定と労力を節減できる効果を発揮する。In addition, the excavated soil remaining in the trench can be removed using the suction port, which stabilizes the underground structure and saves labor.

（実施例） 第１図、第２図はこの発明の一実施例を示す図である。(Example) FIGS. 1 and 2 are diagrams showing an embodiment of the present invention.

図においてｌは架体２の両側部に無限軌道１３を有する
自走車両で、その前部に上下方向に摺動自在な掘削機構
１５が配設され、後部には上下方向に摺動自在な前処理
機構３０が掘削機構１５に対向して配設されている。In the figure, l is a self-propelled vehicle that has endless tracks 13 on both sides of the frame 2. An excavation mechanism 15 that can be slid vertically is disposed at the front of the vehicle, and an excavation mechanism 15 that can be slid vertically is installed at the rear. A pretreatment mechanism 30 is arranged opposite to the excavation mechanism 15.

自走車両１は、架体２の前部に設けた前輪軸６両端部の
歯付前輪７と、後部に設けた後輪軸９両端部の歯付駆動
輪１０との間に履帯１３ａが架は渡されて外方に突起爪
を具えた無限軌道１３を形成している。The self-propelled vehicle 1 has a crawler track 13a mounted between toothed front wheels 7 at both ends of a front wheel axle 6 provided at the front of the frame 2 and toothed drive wheels 10 at both ends of a rear wheel axle 9 provided at the rear. are extended to form an endless track 13 with protruding claws on the outside.

歯付前輪７と歯付駆動輪ｌＯとの中間下方において、架
体２に固着された支持枠１１に軸支された２個のアイド
ラー１２と、当接して、履帯１３ａ下面に大きな接地面
を形成している。そして、履帯１３ａの上半部にはカバ
ー１４が配設されている。At the lower midpoint between the toothed front wheel 7 and the toothed drive wheel lO, the two idlers 12 that are pivotally supported by a support frame 11 fixed to the frame 2 come into contact with each other, creating a large ground surface on the lower surface of the crawler track 13a. is forming. A cover 14 is disposed on the upper half of the crawler belt 13a.

一方、架体２上に夫々複数の上梁３ａ、中梁３ｂ、下梁
３Ｃ及び支柱３ｄからなる画状枠体のフレーム３が形成
され、また、略逆り字形をした１対の棒状の操作ハンド
ル４が、その下端を架体２に固着されてフレーム３後方
に配設されている。On the other hand, a frame 3 is formed on the frame 2, which is a picture-like frame body consisting of a plurality of upper beams 3a, middle beams 3b, lower beams 3C, and columns 3d. An operating handle 4 is disposed at the rear of the frame 3 with its lower end fixed to the frame 2.

フレーム３の一側には、この自走式掘削４１１の動力源
として必要な電力を供給するエンジン付の発電装置４７
が配設されており、操作ハンドル４近傍のフレーム３上
に、自走式掘削機を操作するために必要な、各種操作ス
イッチを集中した操作パネル５が配設されている。On one side of the frame 3, there is a power generator 47 with an engine that supplies the power necessary as a power source for this self-propelled excavation 411.
An operation panel 5 is provided on the frame 3 near the operation handle 4 and includes various operation switches necessary for operating the self-propelled excavator.

また、架体２の所定位置に駆動用モータ４８が配設され
、スプロケット５０と駆動用チェーン４９を介して、後
輪軸９に固着されたスプロケット８を駆動しており、操
作パネル５の図示してないスイッチの操作により駆動用
モータ４８が回転し、後輪軸９を前進、または後進方向
へ回転させている。Further, a drive motor 48 is disposed at a predetermined position on the frame 2, and drives a sprocket 8 fixed to the rear wheel shaft 9 via a sprocket 50 and a drive chain 49. The drive motor 48 is rotated by operating the switch that is not turned on, and the rear wheel shaft 9 is rotated in the forward or reverse direction.

掘削機構１５は、上下に延びる所定長の断面■字状の昇
降枠１６を有し、昇降枠１６の上端部に自走車両ｌの進
行方向に直交する水平のスプロケット軸１７をもつスプ
ロケット１８と、その下端部にスプロケット軸１７に平
行した誘導輪軸１９をもつ誘導輪２０とが配設されてい
る。The excavation mechanism 15 has an elevating frame 16 with a predetermined length extending vertically and a cross-sectional shape of a letter square, and a sprocket 18 having a horizontal sprocket shaft 17 orthogonal to the traveling direction of the self-propelled vehicle l at the upper end of the elevating frame 16. , and a guide wheel 20 having a guide wheel shaft 19 parallel to the sprocket shaft 17 at its lower end.

このスプロケット１８と誘導輪２０との間には無端状の
カッター用チェーン２１が掛は渡されており、カッター
用チェーン２１には、耐摩耗性、耐衝撃性の大きい所定
形状の掘削刃２２が多数、等間隔で外方へ向けて取付け
られている。An endless cutter chain 21 is passed between the sprocket 18 and the guide wheel 20, and the cutter chain 21 has a cutting blade 22 of a predetermined shape with high wear resistance and impact resistance. A large number of them are mounted outward at equal intervals.

また、スプロケット軸１７には、操作パネル５の図示し
てないスイッチにより操作されるカッター用モータ２４
が配設されており、カッター用チェーン２１を所定方向
へ回動させるよう形成されている。The sprocket shaft 17 also has a cutter motor 24 which is operated by a switch (not shown) on the operation panel 5.
is disposed and is formed to rotate the cutter chain 21 in a predetermined direction.

更に、昇降枠１６の一側面にラック２５が垂直方向に配
設され、ラック２５にはガイド支柱２３．２３に軸支さ
れた軸２６を−もつピニオン２７が噛合されており、軸
２６の一端部に軸２６の回転を固定或は固定解除自在な
ロック装置２８を介して昇降用モータ２９が連結されて
いる。Further, a rack 25 is arranged vertically on one side of the lifting frame 16, and a pinion 27 having a shaft 26 pivotally supported by guide columns 23 and 23 is meshed with the rack 25, and one end of the shaft 26 is engaged with the rack 25. A lifting motor 29 is connected to the shaft 26 through a locking device 28 that can fix or release the rotation of the shaft 26.

また、昇降枠１６はその四隅部において、フレーム３の
所定位置に垂設された４個のガイド支柱２３により案内
されており、操作パネル５の図示してないスイッチの操
作により昇降用モータ２９を作動させて、昇降枠１６を
上下方向に移動可能に形成されている。Further, the lifting frame 16 is guided at its four corners by four guide columns 23 vertically installed at predetermined positions on the frame 3, and a lifting motor 29 is activated by operating a switch (not shown) on the operation panel 5. When activated, the elevating frame 16 is movable in the vertical direction.

そして、昇降枠１６が最上方に位置したとき、下端に位
置する掘削刃２２先端が地表面ＧＬより稍上方に位置し
、また、最下方に位置したとき下端に位置する掘削刃２
２先端が地表面ＧＬより所定深さに達するように形成さ
れている。When the elevating frame 16 is located at the uppermost position, the tip of the excavating blade 22 located at the lower end is located slightly above the ground surface GL, and when the elevating frame 16 is located at the lower end, the excavating blade 22 located at the lower end is located slightly above the ground surface GL.
The two tips are formed to reach a predetermined depth from the ground surface GL.

尚、上記ロック装置２８により掘削機構１５が所定高さ
位置に固定される。Note that the excavation mechanism 15 is fixed at a predetermined height position by the locking device 28.

また、掘削機構１５の前部のフレーム３に、ｌ対の軸受
金具４４に軸支されたローラブラシ４３が配設されてお
り、ローラブラシ４３はローラブラシ用モータ４５によ
り回転（第１図の２点鎖線矢印の方向）を与えられて、
掘削刃２２により掘削され上方へ掻き上げられた掘削土
砂を掻落し、更に、掘削刃２２に付着した粘性土を排除
して刃づまりを防止している。Further, a roller brush 43 supported by l pairs of bearing fittings 44 is disposed on the frame 3 at the front of the excavation mechanism 15, and the roller brush 43 is rotated by a roller brush motor 45 (see FIG. 1). given the direction of the dashed-dotted arrow),
The excavated soil excavated and raked upward by the excavating blade 22 is scraped off, and furthermore, the sticky soil adhering to the excavating blade 22 is removed to prevent the blade from clogging.

ローラブラシ４３の下方には支柱３ｄに支持された排土
シュート４６が配設されており、掘削刃２２から掻落さ
れた掘削土砂を受は留めて、自走車両１外方へ排送して
いる。An earth discharge chute 46 supported by a support post 3d is disposed below the roller brush 43, and the earth and sand scraped off from the excavation blade 22 is retained and discharged to the outside of the self-propelled vehicle 1. There is.

溝処理機構３０は掘削機構１５と略同じ上下長と幅とを
具えて形成されており、上下に延びる断面Ｔ字状のラッ
ク板３１と、ラック板３１背面の受板３２と、その背面
の押え板３３とが積層され、更に押え板３３背面に垂直
方向に吸排出管３４が配設されている。The groove processing mechanism 30 is formed to have approximately the same vertical length and width as the excavation mechanism 15, and includes a rack plate 31 with a T-shaped cross section extending vertically, a receiving plate 32 on the back of the rack plate 31, and a receiving plate 32 on the back of the rack plate 31. A holding plate 33 is laminated, and a suction/discharge pipe 34 is disposed vertically on the back surface of the holding plate 33.

ラック板３１は掘削刃２２より幅が稍狭くコンクリート
充填圧に耐える強度をもつ断面Ｔ形に形成されており、
幅中央部にラックが上下方向に突出して形成されている
。このラックには軸受４２，４２に軸支された軸３９を
もつピニオン４０が噛合されており、軸３９の一端部に
軸３９の回転を固定或は固定解除自在なロック装置４１
を介して昇降用ハンドル３８が固着されている。The rack plate 31 is slightly narrower than the excavation blade 22 and has a T-shaped cross section with strength to withstand concrete filling pressure.
A rack is formed at the center of the width so as to protrude in the vertical direction. A pinion 40 having a shaft 39 supported by bearings 42, 42 is meshed with this rack, and a locking device 41 at one end of the shaft 39 can fix or release the rotation of the shaft 39.
An elevating handle 38 is fixed via the .

受板３２は実施例では所定の弾性を有する厚手の軟質合
成樹脂板よりなり、掘削刃２２と略同じ幅で、且つ、ラ
ック板３１下端より稍下方へ突出する大きさを有し、ラ
ック板３１背面に最大掘削深さに等しい長さの押え板３
３により挾まれて固着されている。In the embodiment, the receiving plate 32 is made of a thick soft synthetic resin plate having a predetermined elasticity, has approximately the same width as the excavating blade 22, and has a size that protrudes slightly downward from the lower end of the rack plate 31. 31 Holding plate 3 with a length equal to the maximum excavation depth on the back
It is sandwiched and fixed by 3.

吸排出管３４は所定径の管状部材で、下端部に後上方へ
略４５度にカットした吸排出孔３４ａが形成され、その
下端は押え板３３より高い位置に設けられている。また
、吸排出管３４上端部に稍後方へ向けて取はずし管継手
３５が配設され、取はずし管継手３５には図示してない
生フンミキサー車或はバキューム機よりの可撓ホース３
６が所望により接続される。また、吸排出孔３４ａの開
口部に密着し、下方に向って末窄まり状の端部に開口を
もつ吸口５１が、所望により嵌着可能に形成されている
。The suction/discharge pipe 34 is a tubular member with a predetermined diameter, and has a suction/discharge hole 34 a cut rearward and upward at an angle of approximately 45 degrees at its lower end, and its lower end is provided at a higher position than the presser plate 33 . Further, a detachable pipe joint 35 is disposed at the upper end of the suction/discharge pipe 34 toward the rear, and a flexible hose 3 from a raw waste mixer truck or a vacuum machine (not shown) is connected to the detachable pipe joint 35.
6 is connected as desired. Further, a suction port 51 is formed so as to fit tightly into the opening of the suction/discharge hole 34a and has an opening at a downwardly tapered end.

前処理機構３０の両側部は、フレーム３；）所定位置に
垂設された断面異形Ｃ字状のガイド部材３７．３７によ
り案内されており、昇降ハンドル３８の回転操作により
前処理機構３０を上下方向に移動可能に形成されている
。Both sides of the pre-processing mechanism 30 are guided by guide members 37, 37 having an irregular C-shaped cross section and vertically installed in a predetermined position of the frame 3; It is formed to be movable in the direction.

そして、前処理機構３０が最上方に位置したとき、その
下端が地表面ＧＬより稍上方に位置し、また、最下方に
位置したとき、その下端が地表面ＧＬより所定深さに達
するように、更に、ロック装置４１により前処理機構３
０が所定高さ位置に固定されるように形成されている。When the pretreatment mechanism 30 is located at the uppermost position, its lower end is located slightly above the ground surface GL, and when it is located at the lowermost position, its lower end reaches a predetermined depth below the ground surface GL. , Furthermore, the pre-processing mechanism 3 is locked by the locking device 41.
0 is fixed at a predetermined height position.

上記掘削機構１５と前処理機・構３０とは、それらをガ
イドしている部材から上方へ抜脱して夫々を自走車両１
から切離した状態にして遠隔地への移動運搬を行うこと
ができる。また、上記各モータの作動を制御するスイッ
チ回路及び発電装置よりの給電回路が構成されている。The excavation mechanism 15 and the pretreatment mechanism/mechanism 30 are pulled out upward from the member guiding them, and are respectively attached to the self-propelled vehicle 1.
It can be separated and transported to a remote location. Further, a switch circuit for controlling the operation of each of the motors and a power supply circuit from the power generator are configured.

尚、以上は各駆動源にモータを使用した実施例を示した
が、この発明の技術的思想の範囲内で他の駆動源を採用
し得ることは論をまたない。Incidentally, although an embodiment in which a motor is used as each drive source has been described above, it goes without saying that other drive sources can be employed within the scope of the technical idea of the present invention.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明の実施例の自走式掘削機の側断面図、
第２図は同じく平面図、第３図はこの発明の詳細な説明
するための自走式掘削機の各作動態様を示す側断面図、
第４図は掘削表態を示す平断面図、第５図は小規模の掘
削溝形成を示す断面図、第６図は大形の洞道の形成を示
す断面図である。 １・・・自走車両、 ２・・・架体、 １３・・・無限軌道、 １５・・・掘削機構、 ２１・・・カッター用チェーン、 ２２・・・掘削刃 ２３・・・ガイド支柱、 ３０・・・前処理機構、 ３２・・・受板、 ３４・・・吸排出管。 ３７・・・ガイド部材。 特　　許　　出　　願　　人 第２図 第４図FIG. 1 is a side sectional view of a self-propelled excavator according to an embodiment of the present invention;
FIG. 2 is a plan view, and FIG. 3 is a side sectional view showing various operating modes of the self-propelled excavator for explaining the invention in detail.
FIG. 4 is a plan sectional view showing the excavation surface, FIG. 5 is a sectional view showing the formation of a small excavation groove, and FIG. 6 is a sectional view showing the formation of a large tunnel. DESCRIPTION OF SYMBOLS 1... Self-propelled vehicle, 2... Frame, 13... Endless track, 15... Excavation mechanism, 21... Cutter chain, 22... Excavation blade 23... Guide column, 30... Pretreatment mechanism, 32... Receiving plate, 34... Suction and discharge pipe. 37... Guide member. Patent applicant Figure 2 Figure 4

Claims (1)

【特許請求の範囲】[Claims] 架体の両側部に無限軌道を有する自走車両の前部に、ガ
イド支柱に案内されて上下方向に摺動自在な掘削機構と
、該掘削機構の後方に対向して位置し且つガイド部材に
案内されて上下方向に摺動自在な溝処理機構とを具備し
、前記掘削機構はカッター用チェーンと共に所定方向へ
駆動される複数の掘削刃を有し、前記溝処理機構は前記
掘削刃幅と略同じ幅を有する受板と該受板の後部に吸排
出管とを有することを特徴とする自走式掘削機。At the front of the self-propelled vehicle, which has endless tracks on both sides of the frame, there is an excavation mechanism that is guided by guide columns and can freely slide in the vertical direction, and an excavation mechanism that is located opposite to the rear of the excavation mechanism and that is attached to the guide member. a groove processing mechanism that is guided and slidable in the vertical direction; the excavation mechanism has a plurality of excavation blades that are driven in a predetermined direction together with a cutter chain; A self-propelled excavator comprising a receiving plate having approximately the same width and a suction and exhaust pipe at the rear of the receiving plate.