JPH0517331B2 - - Google Patents
Info
- Publication number
- JPH0517331B2 JPH0517331B2 JP62197458A JP19745887A JPH0517331B2 JP H0517331 B2 JPH0517331 B2 JP H0517331B2 JP 62197458 A JP62197458 A JP 62197458A JP 19745887 A JP19745887 A JP 19745887A JP H0517331 B2 JPH0517331 B2 JP H0517331B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating vertical
- pressing means
- excavator
- axis
- sled body
- 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.)
- Expired - Fee Related
Links
- 238000003756 stirring Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 5
- 238000007667 floating Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Description
本発明は、多軸掘削機において掘削する途中回
転縦軸の垂直精度の誤差を修正するための技術に
関する。
The present invention relates to a technique for correcting an error in the vertical accuracy of a rotating longitudinal axis during excavation in a multi-axis excavator.
ソイルセメント連続壁などを施工するに当たつ
て多軸掘削機が知られている。この多軸掘削機は
掘削していくと回転縦軸間が拡がつたり、縮まつ
たりし、また回転縦軸が傾いたりして正確な掘削
ができにくいという問題があつた。このため特公
昭55−9978号公報に示すように複数本の回転縦軸
同士を連結装置により回転自在に連結するものが
知られている。ところがこのように連結装置によ
つて複数本の回転縦軸を連結すると回転縦軸同士
の間〓が拡がつたり、狭まつたりするのは防止で
きるが、依然として回転縦軸が傾いた場合の修正
はできないという問題がある。
また、掘削機における傾斜制御をする装置とし
て実開昭54−24901号公報が知られている。この
従来例にあつては、掘削機本体の両側面から掘削
機本体と平行な上下に長い板状の傾斜制御板がジ
ヤツキにより掘削機本体と直角方向に突出自在と
なつている。ところが、この従来例にあつては、
修正に当たりそり状の上下に長い板状の傾斜制御
板が掘削機本体に対して直角方向に突出して上下
に長い板状の傾斜制御板が上下に長い面状態で孔
壁に強く押されて孔壁に食い込むようになり、掘
削機本体の下方への掘進に対しての大きな抵抗と
なるという問題がある。
Multi-axis excavators are known for constructing soil-cement continuous walls and the like. This multi-axis excavator had the problem that as it excavated, the distance between the rotating vertical axes would expand or contract, and the rotating vertical axis would tilt, making it difficult to excavate accurately. For this reason, as shown in Japanese Patent Publication No. 55-9978, a device is known in which a plurality of rotating vertical shafts are rotatably connected to each other by a connecting device. However, if multiple rotating vertical shafts are connected using a coupling device in this way, it is possible to prevent the gap between the rotating vertical shafts from widening or narrowing, but it is still possible to prevent the space between the rotating vertical shafts from expanding or narrowing. The problem is that it cannot be fixed. Furthermore, Japanese Utility Model Application No. 54-24901 is known as a device for controlling inclination in an excavator. In this conventional example, tilt control plates in the form of vertically long plates that are parallel to the excavator body are able to project from both sides of the excavator body in a direction perpendicular to the excavator body by means of a jack. However, in this conventional example,
During correction, a sled-shaped vertically long plate-shaped tilt control plate protrudes perpendicularly to the excavator body, and the vertically long plate-shaped tilt control plate is strongly pressed against the hole wall with a vertically long surface. There is a problem in that it starts to bite into the wall and becomes a large resistance to the downward digging of the excavator body.
本発明は上記の従来の問題点に鑑みて発明した
ものであつて、その目的とするところは、回転縦
軸間の間〓が拡がつたり、狭まつたりすることが
ないのはもちろんのこと、回転縦軸が傾いた場合
における修正をそり体により構成した押圧手段に
を用いたにもかかわらず、垂直誤差の修正をする
に当たり、そり体による孔壁への押圧時に掘進が
スムーズに行えるようにすることができる多軸掘
削機における回転縦軸の精度誤差修正装置を提供
するにある。
The present invention was invented in view of the above-mentioned conventional problems, and its purpose is to prevent the gap between the rotating vertical shafts from expanding or narrowing. In addition, even though a pressing means composed of a sled body was used to correct the inclination of the vertical axis of rotation, when the vertical error was corrected, the excavation could be made smoothly when the sled body pressed against the hole wall. An object of the present invention is to provide a precision error correction device for a rotating vertical axis in a multi-axis excavator.
本発明の多軸掘削機における回転縦軸の精度誤
差修正装置は、複数本の長尺の回転縦軸２を並設
した多軸掘削機１において、複数本の回転縦軸２
同士を下部付近で連結装置３により回転自在に連
結し、連結装置３に孔壁４に押圧自在となつた押
圧手段５を複数設けると共に複数の押圧手段５の
押圧方向を異ならせ、押圧手段５を上下に長いそ
り体２２により形成し、該そり体２２の上部と下
部とにそれぞれ上下の油圧ジヤツキ１１を取り付
けて上下の油圧ジヤツキ１１による突出量を可変
自在として成ることを特徴とするものであつて、
このような構成を採用することで上記した本発明
の目的を達成したものである。すなわち本発明に
あつては、複数本の回転縦軸２同士を下部付近で
連結装置３によつて回転自在に連結することで回
転縦軸２間の間〓が拡がつたり、狭まつたりする
のが防止でき、また連結装置３に孔壁４に押圧自
在となつた押圧手段５を複数設けると共に複数の
押圧手段５の押圧方向を異ならせることで、回転
縦軸２が地盤中で傾いた場合押圧手段５で孔壁４
を押して回転縦軸２の姿勢を矯正することができ
るものであり、しかも、そり体２２の上部と下部
とにそれぞれ上下の油圧ジヤツキ１１を取り付け
て上下の油圧ジヤツキ１１による突出量を可変自
在としてあるので、上下の油圧ジヤツキ１１の突
出量を調整してそり体２２を回転縦軸２に対して
傾斜させることで、回転縦軸２の姿勢を矯正でき
ると共に、この場合、そり体２２が傾斜すること
で、孔壁４に対しては点接触状態となり、上下に
長い面状態で押圧される場合に比べて抵抗が少な
く、回転縦軸２の掘進の妨げになりにくいもので
ある。
以下本発明を実施例により詳述する。多軸掘削
機１は複数本の回転縦軸２を並設したものであつ
て、各回転縦軸２の下端にはビツト６が設けてあ
り、また回転縦軸２にはスクリユー部７、撹拌翼
８等の撹拌手段９が設けてある。複数本の回転縦
軸２の下部同士は連結装置３により回転自在に連
結してある。すなわち連結装置３の各軸受筒部１
０にそれぞれ回転縦軸２が回転自在に嵌挿してあ
る。この連結装置３は複数庫設けてある。連結装
置３の両端部には前後方向（複数本の回転縦軸２
の並設方向と直交する方向を前後方向とする）に
押圧手段５が設けてある。この押圧手段５は上下
に長いそり体２２により形成してあり、そり体２
２の上部と下部はそれぞれ上下の油圧ジヤツキ１
１により連結装置３と接続してある。この上下の
油圧ジヤツキ１１はそれぞれそり体２２の上部と
下部とを移動自在とするようになつている。
しかして上記のような多軸掘削機１によつて地
盤１３を掘削していくのであるが、回転縦軸２が
地盤１３中で傾いた場合には上下の油圧ジヤツキ
１１による突出量を変えることでそり体２２を例
えば第４図の想像線のように傾かせて孔壁４にそ
り体２２を押し付けることことで第４図矢印イ方
向に回転縦軸２と下端を向けて姿勢を矯正しなが
ら掘削していくものである。そして、回転縦軸２
の姿勢が矯正できたら押圧手段５であるそり体２
２による孔壁４の押圧を解除して掘進するもので
ある。ここで撹拌手段９としてスクリユー部７を
設けた場合、スクリユー部７の一部又は全部に掘
削用チツプのような掘削手段２１を設けておき、
押圧手段５によつて押圧されることでスクリユー
部７の掘削手段２１が孔壁４を掘削しながら掘進
することとなつて、よりいつそう回転縦軸２の姿
勢矯正が簡単にできるものである。
ところで地盤１３中において回転縦軸２の傾斜
を検知するには例えば次のようにしておこなう。
回転縦軸２内に水を入れた水封入部１５を設け、
この水封入部１５の底部中央にコード１６の下端
を固着し、コード１６の上端に浮き体１７を固着
し、浮き体１７の上面中央にレーザ光線発生部１
８を設ける。そしてレーザ光線発生部１８から上
方に垂直に発生するレーザ光線１９を浮き体１７
の上方に配置したレーザ光線受け盤２０で受け、
レーザ光線受け盤２０の中心ｏからｘ方向、ｙ方
向にどれだけずれているかを検出し、このｘ、ｙ
方向のずれを解析して地盤１３中における回転縦
軸２の傾斜状態を調べ、これに基づいて押圧手段
５を動作させるようになつている。もちろん地盤
１３中における回転縦軸２の傾斜を調べる方法は
上記の実施例にのみ限定されず、他の方法であつ
てもよい。
なお上記実施例にあつては回転縦軸２で地盤１
３を掘削する際に回転縦軸２の任意の位置又はビ
ツトからセメントミルクのような固結用液を噴出
し、セメントミルクと掘削土砂と撹拌手段９によ
つて撹拌混合して地盤１３中に地中壁を形成する
ものであるが、本発明はこれにのみ限定されず、
撹拌手段９がなくて単に孔を掘削するだけの場
合、あるいは全長にスクリユー部を設けて掘削土
を排土する場合等も回転縦軸２の姿勢の制御がで
きるものである。また撹拌手段９を設ける実施例
にあつてはスクリユー部７のみの場合、撹拌翼８
のみの場合、あるいはスクリユー部７と撹拌翼８
との両方を設けた場合等種々設計変更可能であ
る。
The precision error correction device of the rotating vertical shaft in a multi-axis excavator according to the present invention is applicable to a multi-axis excavator 1 in which a plurality of long rotating vertical shafts 2 are arranged in parallel.
They are rotatably connected to each other by a connecting device 3 near the lower part, and the connecting device 3 is provided with a plurality of pressing means 5 that can freely press against the hole wall 4, and the pressing directions of the plurality of pressing means 5 are made to be different. is formed by a vertically long sled body 22, and upper and lower hydraulic jacks 11 are attached to the upper and lower parts of the sled body 22, respectively, so that the amount of protrusion by the upper and lower hydraulic jacks 11 can be made variable. It's hot,
By employing such a configuration, the above-mentioned object of the present invention is achieved. In other words, in the present invention, by rotatably connecting a plurality of rotating vertical shafts 2 to each other near the lower part by means of a connecting device 3, the space between the rotating vertical shafts 2 can be expanded or narrowed. In addition, by providing a plurality of pressing means 5 that can freely press against the hole wall 4 in the coupling device 3 and making the pressing directions of the plurality of pressing means 5 different, it is possible to prevent the vertical axis of rotation 2 from tilting in the ground. In this case, the pressing means 5 presses the hole wall 4.
The posture of the rotating vertical shaft 2 can be corrected by pushing the sled body 22, and upper and lower hydraulic jacks 11 are attached to the upper and lower parts of the sled body 22, respectively, so that the amount of protrusion by the upper and lower hydraulic jacks 11 can be varied. Therefore, by adjusting the protrusion amount of the upper and lower hydraulic jacks 11 and tilting the sled body 22 with respect to the rotational vertical axis 2, the posture of the rotational vertical axis 2 can be corrected, and in this case, the sled body 22 is tilted. By doing so, it comes into a point contact state with the hole wall 4, and there is less resistance compared to the case where it is pressed in a vertically long plane state, and it is less likely to interfere with the excavation of the rotary vertical shaft 2. The present invention will be explained in detail below with reference to Examples. The multi-axis excavator 1 has a plurality of rotating vertical shafts 2 arranged in parallel, and a bit 6 is provided at the lower end of each rotating vertical shaft 2. A stirring means 9 such as a blade 8 is provided. The lower parts of the plurality of rotating vertical shafts 2 are rotatably connected to each other by a connecting device 3. That is, each bearing cylinder part 1 of the coupling device 3
A rotary vertical shaft 2 is rotatably inserted into each of the 0 and 0 respectively. This connecting device 3 is provided in a plurality of storages. Both ends of the coupling device 3 are connected in the front-rear direction (multiple rotating vertical shafts 2
A pressing means 5 is provided in a direction (the direction perpendicular to the direction in which these are arranged in parallel is defined as the front-back direction). This pressing means 5 is formed by a vertically long sled body 22.
The upper and lower parts of 2 are the upper and lower hydraulic jacks 1, respectively.
1 is connected to a coupling device 3. The upper and lower hydraulic jacks 11 are adapted to be movable between the upper and lower parts of the sled body 22, respectively. Therefore, the ground 13 is excavated by the multi-axis excavator 1 as described above, but if the rotary vertical shaft 2 is tilted in the ground 13, the amount of protrusion by the upper and lower hydraulic jacks 11 must be changed. By tilting the sled body 22, for example, as shown in the imaginary line in FIG. 4, and pressing the sled body 22 against the hole wall 4, the vertical axis of rotation 2 and the lower end are directed in the direction of arrow A in FIG. We will continue to excavate while doing so. And the vertical axis of rotation 2
After correcting the posture, the sled body 2, which is the pressing means 5,
2, the pressure on the hole wall 4 is released and the excavation is carried out. Here, when the screw part 7 is provided as the stirring means 9, a part or all of the screw part 7 is provided with a digging means 21 such as a drilling tip,
By being pressed by the pressing means 5, the excavating means 21 of the screw portion 7 advances while excavating the hole wall 4, making it easier to correct the posture of the rotating vertical shaft 2. . By the way, in order to detect the inclination of the rotational vertical axis 2 in the ground 13, for example, it is carried out as follows.
A water sealing part 15 containing water is provided in the rotating vertical shaft 2,
The lower end of the cord 16 is fixed to the center of the bottom of this water sealing part 15, the floating body 17 is fixed to the upper end of the cord 16, and the laser beam generating part 1 is fixed to the center of the upper surface of the floating body 17.
8 will be provided. Then, the laser beam 19 generated vertically upward from the laser beam generating section 18 is transmitted to the floating body 17.
The laser beam is received by a receiving board 20 placed above the
The amount of deviation from the center o of the laser beam receiver 20 in the x and y directions is detected, and the
The direction shift is analyzed to check the inclination state of the rotating vertical axis 2 in the ground 13, and the pressing means 5 is operated based on this. Of course, the method of examining the inclination of the vertical axis of rotation 2 in the ground 13 is not limited to the above embodiment, and other methods may be used. In the above embodiment, the vertical axis of rotation 2 is connected to the ground 1.
When excavating the ground 13, a solidifying liquid such as cement milk is ejected from an arbitrary position of the rotary vertical shaft 2 or from the bit, and the cement milk and excavated soil are stirred and mixed by the stirring means 9 and poured into the ground 13. Although it forms an underground wall, the present invention is not limited to this.
The attitude of the rotating vertical shaft 2 can be controlled even when a hole is simply excavated without the stirring means 9, or when a screw portion is provided along the entire length and the excavated soil is discharged. In addition, in an embodiment in which stirring means 9 is provided, in the case where only the screw portion 7 is provided, stirring blades 8
or screw part 7 and stirring blade 8
Various design changes are possible, such as when both are provided.
本発明は上述のように、複数本の長尺の回転縦
軸同士を下部付近で連結装置により回転自在に連
結してあるので、地盤中において回転縦軸の間の
間〓を一定巾に保つことができて、回転縦軸間の
間〓が拡がつたり、狭まつたりするのが防止でき
るものであり、更に連結装置に孔壁に押圧自在と
なつた押圧手段を複数設けると共に複数の押圧手
段の押圧方向を異ならせてあるので、回転縦軸が
地盤中で傾いた場合には複数の押圧手段のうち任
意の押圧手段で孔壁を押圧することで簡単に回転
縦軸の姿勢矯正ができるものである。しかも、押
圧手段を上下に長いそり体により形成し、該そり
体の上部と下部とにそれぞれ上下の油圧ジヤツキ
を取り付けて上下の油圧ジヤツキによる突出量を
可変自在としてああるので、上下の油圧ジヤツキ
の突出量を調整してそり体を回転縦軸に対して傾
斜させることで、回転縦軸の姿勢を矯正できると
共に、この場合、そり体が傾斜することで、孔壁
に対しては点接触状態となり、上下に長い面状態
で押圧される場合に比べて抵抗が少なく、回転縦
軸の掘進の妨げになりにくいものである。
As described above, in the present invention, a plurality of long rotating vertical shafts are rotatably connected to each other by a connecting device near the bottom, so that the distance between the rotating vertical shafts is maintained at a constant width in the ground. It is possible to prevent the gap between the rotating vertical shafts from expanding or narrowing, and the connecting device is provided with a plurality of pressing means that can freely press against the hole wall, and a plurality of Since the pressing directions of the pressing means are different, if the vertical axis of rotation is tilted in the ground, the posture of the vertical axis of rotation can be easily corrected by pressing the hole wall with any one of the multiple pressing means. It is something that can be done. Moreover, the pressing means is formed by a vertically long sled body, and upper and lower hydraulic jacks are attached to the upper and lower parts of the sled body, respectively, so that the amount of protrusion by the upper and lower hydraulic jacks can be varied. By adjusting the amount of protrusion and tilting the sled body with respect to the vertical axis of rotation, the posture of the vertical axis of rotation can be corrected, and in this case, by tilting the sled body, there is no point contact with the hole wall. This results in less resistance compared to the case of being pressed in a vertically long plane state, and is less likely to interfere with the digging of the rotating vertical shaft.
第１図は本発明の掘削機の正面図、第２図は同
上に側面図、第３図は同上の拡大正面図、第４図
は掘削を示す拡大側面図、第５図ａ，ｂは同上の
回転縦軸の垂直状態及び傾いた状態のときの浮き
体との関係を示す説明のための斜視図であつて、
１は多軸掘削機、２は回転縦軸、３は連結装置、
４は孔壁、５は押圧手段、１１は油圧ジヤツキ、
２２はそり体である。
Fig. 1 is a front view of the excavator of the present invention, Fig. 2 is a side view of the same as above, Fig. 3 is an enlarged front view of the same as above, Fig. 4 is an enlarged side view showing excavation, Fig. 5 a and b are A perspective view for explaining the relationship with the floating body when the vertical axis of rotation is in the vertical state and in the tilted state,
1 is a multi-axis excavator, 2 is a rotating vertical shaft, 3 is a coupling device,
4 is a hole wall, 5 is a pressing means, 11 is a hydraulic jack,
22 is a sled body.
Claims (1)
機において、複数本の回転縦軸同士を下部付近で
連結装置により回転自在に連結し、連結装置に孔
壁に押圧自在となつた押圧手段を複数設けると共
に複数の押圧手段の押圧方向を異ならせ、押圧手
段を上下に長いそり体により形成し、該そり体の
上部と下部とにそれぞれ上下の油圧ジヤツキを取
り付けて上下の油圧ジヤツキによる突出量を可変
自在として成ることを特徴とする多軸掘削機にお
ける回転縦軸の精度誤差修正装置。1. In a multi-shaft excavator with multiple long rotating vertical shafts installed in parallel, the multiple rotating vertical shafts are rotatably connected by a connecting device near the bottom, and the connecting device can be pressed against the hole wall. A plurality of pressing means are provided, and the pressing directions of the plurality of pressing means are different.The pressing means is formed by a vertically long sled body, and upper and lower hydraulic jacks are attached to the upper and lower parts of the sled body, respectively, to control the upper and lower hydraulic pressure. A precision error correction device for a rotating vertical axis in a multi-axis excavator, characterized in that the amount of protrusion caused by jacking is variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19745887A JPS6443619A (en) | 1987-08-07 | 1987-08-07 | Corrector for accuracy error of rotary vertical shaft in multispindle excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19745887A JPS6443619A (en) | 1987-08-07 | 1987-08-07 | Corrector for accuracy error of rotary vertical shaft in multispindle excavator |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7094192A Division JPH0647824B2 (en) | 1992-03-27 | 1992-03-27 | Precision error correcting device for rotating vertical axis in multi-axis excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6443619A JPS6443619A (en) | 1989-02-15 |
| JPH0517331B2 true JPH0517331B2 (en) | 1993-03-08 |
Family
ID=16374840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19745887A Granted JPS6443619A (en) | 1987-08-07 | 1987-08-07 | Corrector for accuracy error of rotary vertical shaft in multispindle excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6443619A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07190334A (en) * | 1993-12-27 | 1995-07-28 | Hitachi Zosen Corp | Exhaust gas cooler for ash melting facility |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424901B2 (en) * | 1975-05-21 | 1979-08-24 | ||
| JPS5647336A (en) * | 1979-09-21 | 1981-04-30 | Nissan Motor Co Ltd | Intermittent drive control device for wiper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424901U (en) * | 1977-07-19 | 1979-02-19 |
-
1987
- 1987-08-07 JP JP19745887A patent/JPS6443619A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424901B2 (en) * | 1975-05-21 | 1979-08-24 | ||
| JPS5647336A (en) * | 1979-09-21 | 1981-04-30 | Nissan Motor Co Ltd | Intermittent drive control device for wiper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07190334A (en) * | 1993-12-27 | 1995-07-28 | Hitachi Zosen Corp | Exhaust gas cooler for ash melting facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6443619A (en) | 1989-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |