JP4844934B2 - Drilling leader vertical adjustment mechanism - Google Patents

Drilling leader vertical adjustment mechanism Download PDF

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JP4844934B2
JP4844934B2 JP2008063994A JP2008063994A JP4844934B2 JP 4844934 B2 JP4844934 B2 JP 4844934B2 JP 2008063994 A JP2008063994 A JP 2008063994A JP 2008063994 A JP2008063994 A JP 2008063994A JP 4844934 B2 JP4844934 B2 JP 4844934B2
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leader
leg
state
cylinder
installation base
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JP2009221659A (en
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川 豊 石
保 良 三 東
村 敦 志 木
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Onoda Chemico Co Ltd
Koken Boring Machine Co Ltd
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Onoda Chemico Co Ltd
Koken Boring Machine Co Ltd
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Description

本発明は、リーダーを有する掘削装置に係り、より詳細には、レール上を移動可能な設置台の傾きを調整して、リーダーの鉛直精度を向上させることができる掘削装置のリーダー鉛直調整機構に関する。   The present invention relates to an excavator having a leader, and more particularly, to a leader vertical adjustment mechanism of an excavator that can improve the vertical accuracy of the leader by adjusting the inclination of an installation base that can move on a rail. .

特許文献1には、走行体(クローラ)2にリーダー5が搭載された掘削装置が示されている。リーダー5は、油圧シリンダで動くバックステーと支持アームに支えられて、前後方向に対して垂直に起立させることができる。リーダー5の左右方向の傾きを調整する機構はなく、そのため例えば走行体2が作業する場所は平坦な地表面とする必要がある。これによってリーダー5をどの方向にも傾きがなく、鉛直に起立させることができる。この掘削装置は、リーダー5にオーガスクリュー(棒状旋回体)が垂下連設されている。軟弱な地盤に縦孔を開け、コンクリートを流し込んで強化するような場合、軟弱な地盤の上に通常、数十トンの重量があるクローラ型の掘削装置を持ち込むことは困難である。   Patent Document 1 shows an excavator in which a leader 5 is mounted on a traveling body (crawler) 2. The leader 5 is supported by a backstay and a support arm that are moved by a hydraulic cylinder, and can stand upright in the front-rear direction. There is no mechanism for adjusting the inclination of the leader 5 in the left-right direction. For this reason, for example, the place where the traveling body 2 works must be a flat ground surface. This allows the leader 5 to stand upright without any inclination in any direction. In this excavator, an auger screw (rod-like swivel body) is suspended from the leader 5. When making a vertical hole in soft ground and pouring concrete into it, it is difficult to bring a crawler-type excavator having a weight of several tens of tons on the soft ground.

軟弱な地盤の上には、掘削装置を移動可能に設置できる、レール付きの架台が設けられる。このようなレール付き架台であれば、特許文献2に示されるようなレベル調整ジャッキ20で水平に保つことができる。架台が水平であれば、リーダー起倒用シリンダさえあれば、リーダーを鉛直に立設することができる。
しかしながら、リーダーを有する掘削装置は重量物であり、掘削中の衝撃やスラスト等も加わって掘削装置の架台が湾曲する場合や歪む場合がある。そのため、掘削孔が接近しており高い精度の鉛直な掘削孔を掘る必要がある軟弱な地盤では、リーダーの左右方向の正確な傾き調整機構が必要になる。その場合、掘削装置の設置台と架台の間にレベル調整ジャッキを入れて、設置台の水平を調整していたのでは、掘削装置を次の掘削孔の位置まで移動させる毎にレベル調整ジャッキの取り付け取り外し作業が発生し、作業性を著しく低下させるものとなる。
実開平06−60634号公報 特開平5−5391号公報
On a soft ground, there is a rail-equipped pedestal on which the excavator can be movably installed. With such a rail-mounted base, it can be kept horizontal with a level adjustment jack 20 as shown in Patent Document 2. If the platform is horizontal, the leader can be erected vertically as long as the leader raising / lowering cylinder is available.
However, the excavator having a leader is heavy, and the excavator frame may be bent or distorted due to impact, thrust, or the like during excavation. Therefore, in the soft ground where the excavation hole is close and it is necessary to dig a vertical excavation hole with high accuracy, an accurate tilt adjustment mechanism in the left-right direction of the leader is required. In that case, if the level adjustment jack was inserted between the excavator installation base and the base and the level of the installation base was adjusted, each time the excavation equipment was moved to the position of the next excavation hole, Installation / removal work occurs and workability is significantly reduced.
Japanese Utility Model Publication No. 06-60634 JP-A-5-5391

本発明の目的は、レール上を走行可能な掘削装置の設置台の前後左右方向の傾きが簡単に調整できるリーダー鉛直調整機構を提供することにある。   An object of the present invention is to provide a leader vertical adjustment mechanism that can easily adjust the inclination in the front-rear and left-right directions of an installation base of an excavator capable of traveling on rails.

本発明による掘削装置のリーダー鉛直調整機構は、リーダーが設置台の前方中央端に設置された掘削装置において、前記リーダーを前後方向に傾斜させて、横倒し状態から起立状態とする油圧駆動のリーダー起倒用シリンダと、起立させた状態で前記リーダーを固定するリーダー固定用ロックボルトと、架台に敷設されたレール上を動く車輪が前記設置台の底部に設けられた左右の車軸の両端に設けられると共に一方の車軸の車輪毎に設けられた脚部を伸縮させて、前記設置台を左右方向に傾斜させる油圧駆動の前記脚部に設けられた脚部シリンダと、伸縮させた前記脚部をその長さに固定する脚部固定用ロックボルトと、が備えられ、前記脚部シリンダの伸縮が、一方の車軸に設けられた車輪すべてについて同時にかつ同じ伸縮量で行われることを特徴とする。
The leader vertical adjustment mechanism of the excavator according to the present invention is a hydraulically driven leader starter in which the leader is tilted in the front-rear direction and placed in the standing state from the sideways state in the excavator installed at the front center end of the installation base. Inverted cylinders, leader fixing lock bolts for fixing the leader in an upright state, and wheels that move on rails laid on a frame are provided at both ends of the left and right axles provided at the bottom of the installation table. And a leg cylinder provided on the hydraulically driven leg part for extending and contracting a leg part provided for each wheel of one axle and tilting the installation base in a left-right direction, and a leg part extended and contracted. a leg securing the lock bolt to be fixed to its length, is provided, the expansion and contraction of the leg cylinder, conducted at the same time and the same amount of expansion and contraction for all wheels of a one axle Characterized in that that.

本発明による掘削装置のリーダー鉛直調整機構によれば、左右の車軸の一方に設けられた車輪の脚部を伸縮させて、設置台を左右方向に傾斜させる脚部シリンダを設けたので、リーダーを鉛直に精度よく起立させることができる。また、伸縮させた脚部をその長さに固定する脚部固定用ロックボルトを設けたので、脚部シリンダに油圧をかけることなく設置台を傾けた状態に維持できる。また、新たな掘削孔を掘るたびにレベル調整ジャッキを用いて調整する必要もない。
According to the leader vertical adjustment mechanism of the excavator according to the present invention, the leg cylinder of the wheel provided on one of the left and right axles is expanded and contracted to tilt the installation base in the left and right direction. It can stand up vertically with high accuracy. In addition, since the leg fixing lock bolt for fixing the expanded / contracted leg to its length is provided, the installation base can be maintained in an inclined state without applying hydraulic pressure to the leg cylinder. Moreover, it is not necessary to adjust using a level adjustment jack every time a new excavation hole is dug.

さらに、脚部シリンダの伸縮調整が、一方の車軸に設けられた車輪すべてについて同時にかつ同じ伸縮量で行われるようにしたので、レベル調整ジャッキのように個別に調整する必要がなく、作業効率がよい。

Furthermore, since the expansion and contraction adjustment leg cylinders were to be carried out in and the same amount of expansion and contraction at the same time for all wheels of a one axle, the individual does not need to be adjusted to the level adjusting jack, working efficiency Is good.

以下、図面を参照して、本発明による掘削装置のリーダー鉛直調整機構を説明する。   Hereinafter, a leader vertical adjustment mechanism of an excavator according to the present invention will be described with reference to the drawings.

図1は、本発明による掘削装置の側面図である。掘削装置100は、リーダー1が設置台8の上に起倒可能に起立している状態を示す。リーダー1には、ウィンチ6からのワイヤでロッド2が垂下される。ロッド2の下端には掘削ビット12が設けられる。掘削ビット12は、ドリルヘッド4によって回転が与えられる。ドリルヘッド4は、給進機構3で下方に推し進められる。ロッド2はチャック5とホルダー10で握持される。掘削中は、チャック5が閉じて、ホルダー10は開いている。   FIG. 1 is a side view of an excavator according to the present invention. The excavator 100 shows a state in which the leader 1 stands on the installation table 8 so as to be able to rise and fall. The rod 2 is suspended from the leader 1 by the wire from the winch 6. A drill bit 12 is provided at the lower end of the rod 2. The drill bit 12 is rotated by the drill head 4. The drill head 4 is pushed downward by the feeding mechanism 3. The rod 2 is gripped by the chuck 5 and the holder 10. During excavation, the chuck 5 is closed and the holder 10 is open.

リーダー1は、油圧駆動のリーダー起倒用シリンダ16で起立状態とされ、またサポートカラム7で支持されている。設置台8の上には、電源ボックス9、スイッチボックス28、コントロールボックス11、油圧制御のためのオイルタンク27などが搭載される。設置台8の底部には、車軸に連結された車輪24が設けられ、左右方向に設置されたレール13上を走行できる。レール13は、架台30に設けられている。このような構成は、掘削装置100を軽量化することができるので、架台30への負荷が少ない。   The leader 1 is raised by a hydraulically driven leader raising / lowering cylinder 16 and supported by a support column 7. On the installation base 8, a power box 9, a switch box 28, a control box 11, an oil tank 27 for hydraulic control, and the like are mounted. Wheels 24 connected to the axles are provided at the bottom of the installation table 8 and can travel on the rails 13 installed in the left-right direction. The rail 13 is provided on the gantry 30. Such a configuration can reduce the weight of the excavator 100, so that the load on the gantry 30 is small.

図2は、図1のリーダー起倒用シリンダ付近の側面図である。リーダー1は、起倒用シリンダ16が油圧で伸縮することにより傾けることができる。リーダー1の下部には、リーダー固定用ロックボルト17があり、リーダー1の下部を設置台8に固定することができる。リーダー固定用ロックボルト17は、ボルトが設置台8から延設された部材の孔を貫通して、ボルトの両側をナットで押さえる構造である。リーダー固定用ロックボルト17を外して、起倒用シリンダ16を縮めれば、後方側にリーダー1を倒すことができる。車軸18の両側に設けられた車輪24は、走行用駆動モータ26で駆動され、前進と後退ができる。   FIG. 2 is a side view of the vicinity of the leader raising / lowering cylinder of FIG. The leader 1 can be tilted when the raising / lowering cylinder 16 expands and contracts hydraulically. A leader fixing lock bolt 17 is provided at the lower part of the leader 1, and the lower part of the leader 1 can be fixed to the installation base 8. The leader fixing lock bolt 17 has a structure in which the bolt passes through the hole of the member extended from the installation base 8 and holds both sides of the bolt with nuts. If the lock bolt 17 for fixing the leader is removed and the raising / lowering cylinder 16 is contracted, the leader 1 can be tilted backward. The wheels 24 provided on both sides of the axle 18 are driven by a travel drive motor 26 and can move forward and backward.

図3は、図2の設置台底部付近の一部断面を含む拡大図である。走行用駆動モータ26と車軸18はチェーン19で駆動される。   FIG. 3 is an enlarged view including a partial cross section near the bottom of the installation base in FIG. The travel drive motor 26 and the axle 18 are driven by a chain 19.

図4は、図1の設置台底部付近の拡大正面図である。図3で示す車輪24と走行用駆動モータ26は、図4の左側に位置する。設置台8の右側方向には、油圧で動く脚部シリンダ21と、ピストンである脚部22に取り付けられた車輪24が設けられる。このような構成により、掘削装置100は左右方向にレール13上を移動させることができる。脚部固定用ロックボルト20は、ボルトと2つのナットからなり、脚部22の長さを固定できる。   FIG. 4 is an enlarged front view of the vicinity of the bottom of the installation base in FIG. The wheel 24 and the travel drive motor 26 shown in FIG. 3 are located on the left side of FIG. A leg cylinder 21 that moves hydraulically and a wheel 24 that is attached to a leg 22 that is a piston are provided on the right side of the installation base 8. With this configuration, the excavator 100 can move on the rail 13 in the left-right direction. The leg fixing lock bolt 20 includes a bolt and two nuts, and can fix the length of the leg 22.

図5は、図4の右方向から見た図で、図1の設置台底部付近の右側面図にあたる。脚部シリンダ21に取り付けられた車輪24は従動輪である。車軸18は、駆動モータには接続されない。車輪24は、車軸18の両端に設けられる。図5において、前後の2つの脚部シリンダ21は、油圧制御で同時に制御され、脚部22の伸縮量は共に同じ値とされる。なお、本実施例では、脚部シリンダ21を車軸18の一側の車輪に設けたが、車軸18の両側の車輪に設けてもよい。   5 is a right side view of the vicinity of the bottom of the installation base in FIG. The wheel 24 attached to the leg cylinder 21 is a driven wheel. The axle 18 is not connected to the drive motor. The wheels 24 are provided at both ends of the axle 18. In FIG. 5, the two front and rear leg cylinders 21 are simultaneously controlled by hydraulic control, and the expansion and contraction amounts of the leg parts 22 are both set to the same value. In the present embodiment, the leg cylinders 21 are provided on the wheels on one side of the axle 18, but may be provided on the wheels on both sides of the axle 18.

図6は、リーダー1の前後方向の傾きを調整する様子を示す動作図である。図6(A)は、リーダー1が前方向にθ1傾いている状態を示す。どれだけ傾いているかは傾斜計25で知ることができる。この状態で、リーダー固定用ロックボルト17を緩めて、リーダー起倒用シリンダ16を縮めれば、リーダー1は、図6(B)に示すようにリーダー1が垂直に起立した状態にすることができる。この状態を傾斜計25で確認して、リーダー固定用ロックボルト17を絞めることにより、リーダー1を動かないように固定する。リーダー1が後方向に傾いている場合も同様にして調整することができる。   FIG. 6 is an operation diagram showing how to adjust the tilt of the reader 1 in the front-rear direction. FIG. 6A shows a state in which the leader 1 is inclined by θ1 in the forward direction. It can be known by the inclinometer 25 how much it is tilted. In this state, if the leader fixing lock bolt 17 is loosened and the leader raising / lowering cylinder 16 is contracted, the leader 1 can be brought into a state where the leader 1 stands vertically as shown in FIG. it can. This state is confirmed by the inclinometer 25, and the leader fixing lock bolt 17 is tightened to fix the leader 1 so as not to move. When the leader 1 is tilted backward, the adjustment can be performed in the same manner.

図7は、リーダー1の左右方向の傾きを調整する様子を示す動作図である。図7(A)は、設置台8が右にθ2傾いている状態を示す。どれだけ傾いているかは傾斜計25で知ることができる。この状態で脚部固定用ロックボルト20を緩め、脚部シリンダ21で脚部22を伸ばせば、図7(B)に示す設置台8を水平な状態とすることができる。この状態は脚部固定用ロックボルト20を絞めることで固定できる。図7(C)は、設置台8が左にθ3傾いている状態を示す。この状態で脚部固定用ロックボルト20を緩め、脚部シリンダ21で脚部22を縮めれば、図7(B)に示す設置台8を水平な状態とすることができる。この状態は脚部固定用ロックボルト20を絞めることで固定できる。このような調整は、設置台8が湾曲した場合や歪んだ場合にも有効である。   FIG. 7 is an operation diagram illustrating how the tilt of the reader 1 in the left-right direction is adjusted. FIG. 7A shows a state where the installation base 8 is tilted to the right by θ2. It can be known by the inclinometer 25 how much it is tilted. If the leg fixing lock bolt 20 is loosened in this state and the leg 22 is extended by the leg cylinder 21, the installation base 8 shown in FIG. 7B can be brought into a horizontal state. This state can be fixed by tightening the leg fixing lock bolt 20. FIG. 7C shows a state where the installation base 8 is tilted to the left by θ3. If the leg fixing lock bolt 20 is loosened in this state and the leg 22 is contracted by the leg cylinder 21, the installation base 8 shown in FIG. 7B can be brought into a horizontal state. This state can be fixed by tightening the leg fixing lock bolt 20. Such adjustment is also effective when the installation base 8 is curved or distorted.

本発明は、レール上を走行する掘削装置のリーダー鉛直調整機構に好適である。   The present invention is suitable for a leader vertical adjustment mechanism of an excavator that travels on a rail.

本発明による掘削装置の側面図である。(実施例1)1 is a side view of a drilling device according to the present invention. Example 1 図1のリーダー起倒用シリンダ付近の側面図である。(実施例1)FIG. 2 is a side view of the vicinity of a leader raising / lowering cylinder of FIG. 1. Example 1 図2の設置台底部付近の一部断面を含む拡大図である。(実施例1)FIG. 3 is an enlarged view including a partial cross section near the bottom of the installation base in FIG. 2. Example 1 図1の設置台底部付近の拡大正面図である。(実施例1)FIG. 2 is an enlarged front view of the vicinity of the bottom of the installation table in FIG. 1. Example 1 図4の設置台底部付近の右側面図である。(実施例1)FIG. 5 is a right side view of the vicinity of the bottom of the installation base in FIG. 4. Example 1 リーダーの前後方向の傾きを調整する様子を示す動作図である。(A)はリーダーが前方向にθ1傾いている状態を示す。(B)はリーダーが垂直に起立している状態を示す。It is an operation | movement figure which shows a mode that the inclination of the front-back direction of a leader is adjusted. (A) shows a state in which the leader is inclined by θ1 in the forward direction. (B) shows the state where the leader stands upright. リーダーの左右方向の傾きを調整する様子を示す動作図である。(A)は設置台が右にθ2傾いている状態を示す。(B)は設置台の水平状態を示す。(C)は設置台が左にθ3傾いている状態を示す。It is an operation | movement figure which shows a mode that the inclination of the left-right direction of a reader is adjusted. (A) shows a state in which the installation base is tilted by θ2 to the right. (B) shows the horizontal state of the installation base. (C) shows a state in which the installation base is inclined by θ3 to the left.

符号の説明Explanation of symbols

1 リーダー
2 ロッド
3 給進機構
4 ドリルヘッド
5 チャック
6 ウィンチ
7 サポートカラム
8 設置台
9 電源ボックス
10 ホルダー
11 コントロールボックス
12 掘削ビット
13 レール
16 リーダー起倒用シリンダ
17 リーダー固定用ロックボルト
18 車軸
19 チェーン
20 脚部固定用ロックボルト
21 脚部シリンダ
22 脚部
24 車輪
25 傾斜計
26 走行用駆動モータ
27 オイルタンク
28 スイッチボックス
30 架台
100 掘削装置
DESCRIPTION OF SYMBOLS 1 Leader 2 Rod 3 Feeding mechanism 4 Drill head 5 Chuck 6 Winch 7 Support column 8 Installation stand 9 Power supply box 10 Holder 11 Control box 12 Drilling bit 13 Rail 16 Leader raising / lowering cylinder 17 Leader fixing lock bolt 18 Axle 19 Chain DESCRIPTION OF SYMBOLS 20 Leg part fixing bolt 21 Leg part cylinder 22 Leg part 24 Wheel 25 Inclinometer 26 Driving motor 27 Oil tank 28 Switch box 30 Base 100 Excavator

Claims (1)

リーダーが設置台の前方中央端に設置された掘削装置において、
前記リーダーを前後方向に傾斜させて、横倒し状態から起立状態とする油圧駆動のリーダー起倒用シリンダと、
起立させた状態で前記リーダーを固定するリーダー固定用ロックボルトと、
架台に敷設されたレール上を動く車輪が前記設置台の底部に設けられた左右の車軸の両端に設けられると共に一方の車軸の車輪毎に設けられた脚部を伸縮させて、前記設置台を左右方向に傾斜させる油圧駆動の前記脚部に設けられた脚部シリンダと、
伸縮させた前記脚部をその長さに固定する脚部固定用ロックボルトと、が備えられ、前記脚部シリンダの伸縮が、一方の車軸に設けられた車輪すべてについて同時にかつ同じ伸縮量で行われることを特徴とする掘削装置のリーダー鉛直調整機構。
In the drilling rig where the leader is installed at the front center edge of the installation table,
A hydraulically driven leader raising / lowering cylinder that inclines the leader in the front-rear direction and puts the leader in a standing state from a sideways state;
A leader fixing lock bolt for fixing the leader in an upright state;
Wheels that move on rails laid on the gantry are provided at both ends of the left and right axles provided at the bottom of the installation table, and the legs provided for each wheel of one axle are expanded and contracted, and the installation table A leg cylinder provided in the leg of the hydraulic drive that inclines the left and right direction;
A leg fixing lock bolt for fixing the stretched leg portion to its length, and the leg cylinder is stretched simultaneously and with the same stretch amount for all the wheels provided on one axle. leader vertical adjustment mechanism of the drilling apparatus characterized by dividing.
JP2008063994A 2008-03-13 2008-03-13 Drilling leader vertical adjustment mechanism Expired - Fee Related JP4844934B2 (en)

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