JPS644924Y2 - - Google Patents
Info
- Publication number
- JPS644924Y2 JPS644924Y2 JP1983004069U JP406983U JPS644924Y2 JP S644924 Y2 JPS644924 Y2 JP S644924Y2 JP 1983004069 U JP1983004069 U JP 1983004069U JP 406983 U JP406983 U JP 406983U JP S644924 Y2 JPS644924 Y2 JP S644924Y2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- bucket
- arm
- tip
- bucket arm
- 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
Links
- 238000009412 basement excavation Methods 0.000 description 5
- 230000001154 acute effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Shovels (AREA)
- Earth Drilling (AREA)
Description
【考案の詳細な説明】
本考案は、走行しながら道路の側溝、農耕用溝
その他の溝を連続的に掘削する溝掘機の改良に関
するものである。[Detailed Description of the Invention] The present invention relates to an improvement of a ditch excavator that continuously excavates road ditches, agricultural ditches, and other ditches while running.
従来、走行車体にブームを回動自在に設け、こ
のブームの先端にバケツトアームを介して無端回
動式の溝掘用バケツト装置と排土シユートを設け
てなる溝掘機（トレンチヤー）が知られている
（たとえば実開昭55−17801号公報）。 Conventionally, a trench excavator (trencher) has a boom rotatably mounted on a traveling vehicle body, and an endless rotating bucket device for trench digging and an earth removal chute attached to the tip of the boom via a bucket arm. This is known (for example, Utility Model Application Publication No. 17801/1983).
上記従来の溝掘機では、バケツト装置を昇降さ
せるために、車体のブーム下端枢支部よりも下方
位置にブームと同等長さのリンクを回動自在に枢
支させ、ブームの先端にバケツトアームの上端を
連結し、リンクをブームと平行に配置してその先
端にバケツトアームの中間部を連結し、ブームの
下端枢支部およびリンクの下端枢支部よりも車体
後方に配置したシリンダによりブームを回動さ
せ、ブームとリンクとからなる平行リンク機構を
介してバケツトアームの軸線を走行装置の下面す
なわち地面に対して一定の傾斜角（対地角）を保
持した状態でバケツト装置を昇降させるようにな
つている。 In the above-mentioned conventional ditch excavator, in order to raise and lower the bucket device, a link of the same length as the boom is rotatably supported at a position below the lower end of the boom pivot on the car body, and a bucket arm is attached to the tip of the boom. The upper ends are connected, a link is placed parallel to the boom, and the middle part of the bucket arm is connected to the tip of the link, and the boom is moved by a cylinder placed behind the vehicle body than the lower end pivot of the boom and the lower end pivot of the link. By rotating the bucket, the axis of the bucket arm is maintained at a constant angle of inclination (angle to the ground) with respect to the lower surface of the traveling device, that is, the ground, through a parallel link mechanism consisting of a boom and a link, and the bucket can be raised and lowered. It's getting old.
この場合、平行リンク機構によりバケツトアー
ム軸線の対地角が一定のままでバケツト装置が昇
降されるために、不使用時にブームを起立させて
バケツト装置を引上げると、バケツトアームの先
端および排土シユートが車体よりも上方に大きく
突出し、溝掘機の全体高さが高くなり、トラツク
輸送時には制限高さを越えることになる。また、
上記突出量を小さくするためには、バケツトアー
ムの全体長さを短くしなければならず、こうすれ
ば掘削時にバケツト装置先端の地面に対する食込
み深さが浅く、掘削溝深さが浅くなる等の問題が
ある。 In this case, because the parallel link mechanism allows the bucket tot device to be raised and lowered while keeping the angle of the bucket tot arm axis to the ground constant, when the boom is erected when not in use and the bucket tot device is pulled up, the tip of the bucket tot arm and the exhaust The soil chute protrudes far above the vehicle body, increasing the overall height of the trench excavator, which exceeds the height limit when transported by truck. Also,
In order to reduce the amount of protrusion mentioned above, it is necessary to shorten the overall length of the bucket arm, and by doing so, the depth of the tip of the bucket device into the ground during excavation will be shallower, and the depth of the excavation groove will be shallower. There is a problem.
本考案は、このような従来の問題点を解決する
ためになされたもので、簡単な構造で、掘削時に
は最適状態で掘削でき、不使用時には溝掘機の全
体高さを極力低くしてトラツク輸送を支障なく行
える溝掘機を提供するものである。 The present invention was developed to solve these conventional problems.It has a simple structure, allows digging in optimal conditions, and minimizes the overall height of the trench excavator when not in use. The purpose of the present invention is to provide a trench excavator that can be transported without any trouble.
本考案は、履帯式走行装置を備えた走行車体に
ブームの下端を回動自在に枢支し、ブームの先端
にバケツトアームの上端を回動自在に連結し、バ
ケツトアームに無端回動式の溝掘用バケツト装置
と排土シユートを設け、走行車体のブーム下端枢
支部よりも車体後方位置にブームよりも短いアー
ム角度変更用リンクの下端を回動自在に枢支する
とともに、同リンクの上端をバケツトアームの中
間部に回動自在に連結し、走行車体のブーム下端
枢支部よりも車体前方位置にブーム回動用シリン
ダの一端を回動自在に枢支し、同シリンダの他端
をブームの中間部に回動自在に連結し、同シリン
ダの伸縮によつてブームをその先端がブーム下端
枢支部よりも後方に位置してバケツトアームの先
端が前記走行装置の下面を通る水平面よりも下方
に突出する倒伏状態と、ブーム先端がブーム下端
枢支部の上方よりも車体前方側に位置してバケツ
トアームの先端が前記水平面よりも上方に退避す
る引起こし状態とに変更され、ブーム倒伏時にブ
ーム軸線とバケツトアーム軸線との交差角度が大
きく、前記水平面に対するバケツトアーム軸線の
傾斜角が大きくなり、ブーム引起こし時に前記交
差角度が小さく、前記水平面に対するバケツトア
ーム軸線の傾斜角が小さくなるようにブームとバ
ケツトアームとリンクとの位置関係を設定してい
ることを特徴とするものである。 In this invention, the lower end of the boom is rotatably supported on a traveling vehicle body equipped with a track-type traveling device, and the upper end of the bucket arm is rotatably connected to the tip of the boom. A type ditch excavation bucket device and an earth removal chute are installed, and the lower end of an arm angle change link shorter than the boom is rotatably supported at a position rearward of the boom lower end pivot point of the traveling vehicle body. The upper end is rotatably connected to the middle part of the bucket arm, one end of a boom rotation cylinder is rotatably supported at a position forward of the boom lower end pivot of the traveling vehicle body, and the other end of the boom rotation cylinder is rotatably connected to the middle part of the bucket arm. is rotatably connected to the middle part of the boom, and by expanding and contracting the cylinder, the boom is moved to a horizontal plane where the tip of the boom is located behind the boom lower end pivot, and the tip of the bucket arm passes through the bottom surface of the traveling device. and a raised state in which the tip of the boom is located further forward of the vehicle body than above the boom lower end pivot and the tip of the bucket arm is retracted above the horizontal plane, When the boom is lowered, the intersection angle between the boom axis and the bucket arm axis is large, and the angle of inclination of the bucket arm axis with respect to the horizontal plane is large; when the boom is raised, the intersection angle is small, and the bucket arm axis is inclined with respect to the horizontal plane. It is characterized in that the positional relationship between the boom, bucket arm, and link is set so that the angle is small.
以下、本考案の実施例を図によつて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図において、１は走行車体で、左右両側に履帯
式走行装置２が装備され、上部に操縦室３が装備
されている。４はブームで、下端部が走行車体１
に車体幅方向の水平軸５を介して回動自在に枢支
されている。６はブーム回動用シリンダ６で、そ
の一端が走行車体１のブーム下端枢支部（軸）５
よりも前方位置に軸６ａにより回転自在に枢支さ
れ、上端がブーム４の中間部上方寄りの箇所に軸
６ｂにより回動自在に連結され、このシリンダ６
の伸縮によつて、ブーム４をその先端がブーム下
端枢支部よりも後方に位置する倒伏状態と、ブー
ム先端がブーム下端枢支部の上方よりも車体前方
側に引起こされた状態と間で回動自在とし、ブー
ム４の水平面に対する傾斜角度αが変更自在とな
つている。７はバケツトアームで、上端がブーム
４の先端に前記軸５と平行な軸８を介して回動自
在に連結されている。９はバケツトアーム７の角
度変更用リンクで、下端が走行車体１のブーム下
端枢支部よりも後方位置に前記軸５と平行な軸１
０を介して回転自在に枢支され、上端が前記軸８
と平行な軸１１を介してバケツトアーム７の中間
部上方寄りの箇所に回動自在に連結され、これに
よりブーム４の回動に伴つてブーム４の軸線とア
ーム７の軸線との交差角度βが変更されるように
なつている。 In the figure, reference numeral 1 denotes a traveling vehicle body, which is equipped with crawler-type traveling devices 2 on both left and right sides, and a control room 3 at the top. 4 is a boom, and the lower end is the traveling vehicle body 1
It is rotatably supported via a horizontal shaft 5 in the width direction of the vehicle body. Reference numeral 6 denotes a boom rotation cylinder 6, one end of which is connected to the boom lower end pivot (shaft) 5 of the traveling vehicle body 1.
The cylinder 6 is rotatably supported at a position forward of the boom 4 by a shaft 6a, and its upper end is rotatably connected to a position near the upper middle part of the boom 4 by a shaft 6b.
The expansion and contraction of the boom 4 rotates the boom 4 between a collapsed state in which the tip is located behind the boom lower end pivot and a state in which the boom tip is raised to the front of the vehicle body than above the boom lower end pivot. The boom 4 is movable, and the inclination angle α of the boom 4 with respect to the horizontal plane can be changed. A bucket arm 7 has an upper end rotatably connected to the tip of the boom 4 via a shaft 8 parallel to the shaft 5. Reference numeral 9 denotes a link for changing the angle of the bucket arm 7, the lower end of which is connected to an axis 1 parallel to the axis 5 at a position rearward of the boom lower end pivot of the traveling vehicle body 1.
0, and the upper end is connected to the shaft 8.
It is rotatably connected to the intermediate upper part of the bucket arm 7 via a shaft 11 parallel to β is about to change.
なお、バケツトアーム７には、周知の無端回動
式の溝掘用バケツト装置１２および排土シユート
１３が設けられている。このバケツト装置１２は
前記アーム７に複数個のアイドラ１４等を介して
張設された無端チエン１５と、チエン１５に一定
ピツチで設けられたた多数のバケツト１６と、ア
ーム上端に設けられた駆動モータ１７および減速
装置１８とからなり、駆動モータ１７の駆動によ
り減速装置１８、無端チエン１５を介してバケツ
ト１６が矢印イ方向に回転駆動されるようになつ
ている。排土シユート１３はバケツト装置１２の
回動を干渉しないようにアーム７の上端に固着さ
れ、バケツト装置１２の上端反転経路部でバケツ
ト１６の反転によつて排出される土砂をバケツト
装置１２の一側部に案内排出する傾斜案内部１３
ａを具備している。 The bucket arm 7 is provided with a well-known endless rotary trench digging bucket device 12 and an earth removal chute 13. This bucket belt device 12 includes an endless chain 15 stretched over the arm 7 via a plurality of idlers 14, a large number of bucket belts 16 installed at a constant pitch on the chain 15, and a drive belt installed at the upper end of the arm. It consists of a motor 17 and a speed reducer 18, and the bucket 16 is driven to rotate in the direction of arrow A through the speed reducer 18 and the endless chain 15 when the drive motor 17 is driven. The earth discharge chute 13 is fixed to the upper end of the arm 7 so as not to interfere with the rotation of the bucket device 12, and the earth and sand discharged by reversing the bucket 16 at the upper end reversing path of the bucket device 12 is transferred to one part of the bucket device 12. Inclined guide part 13 that guides and discharges to the side
It is equipped with a.
上記溝掘機を用いるときは、バケツト装置１２
の駆動モータ１７および減速装置１８により無端
チエン１５、バケツト１６を矢印イ方向に回転駆
動させながら、図面実線に示すようにブーム回動
シリンダ６によりブーム４を所望の傾斜角度αま
で倒伏させ、バケツト装置１２を地面Ｅに喰込ま
せ、履帯式走行装置２により走行させることによ
つて溝を連続的に掘削する。この場合、バケツト
１６にて溝底面を掘削しながら土砂をすくい上
げ、バケツト装置１２の上端反転経路部でバケツ
ト１６の反転により土砂を排出し、その土砂を排
土シユート１３により溝の一側方に排出する。 When using the trench digging machine, the bucket device 12
While rotating the endless chain 15 and bucket 16 in the direction of arrow A using the drive motor 17 and reduction gear 18, the boom rotation cylinder 6 lowers the boom 4 to a desired inclination angle α, as shown by the solid line in the drawing, and lowers the bucket. A groove is continuously excavated by digging the device 12 into the ground E and traveling by the crawler type traveling device 2. In this case, the bucket 16 scoops up the earth and sand while excavating the bottom of the trench, and the upper end of the bucket device 12 reverses the bucket 16 to discharge the earth and sand. Discharge.
上記溝の掘削時において、シリンダ６によりブ
ーム４の傾斜角度αを適当に選び、ブーム４とア
ーム７の交差角度βを大きく（鈍角に）し、バケ
ツトアーム７の地面Ｅに対する傾斜角（対地角）
γを鋭角で大きくすることによつて、溝の掘削を
スムーズに行なわせることができる。また、ブー
ム４の傾斜角度αを変更することによつてバケツ
ト装置１２の喰込み深さつまり溝深さＤを任意に
決定できる。 When excavating the trench, the inclination angle α of the boom 4 is appropriately selected using the cylinder 6, the intersecting angle β between the boom 4 and the arm 7 is made large (obtuse angle), and the inclination angle of the bucket arm 7 with respect to the ground E (ground angle corner)
By increasing γ with an acute angle, trenches can be excavated smoothly. Further, by changing the inclination angle α of the boom 4, the bite depth of the bucket device 12, that is, the groove depth D can be arbitrarily determined.
次いで、溝の掘削後は、鎖線に示すようにシリ
ンダ６によりブーム４をその先端がブーム下端の
枢支部（軸）５よりも車体前方側に位置するよう
に引起こすことによつてアーム７を引上げ、バケ
ツト装置１２を地面Ｅより上方に退避させる。こ
の場合、ブーム４の起立に連動してアーム７の上
端が引上げられるとともに、ブーム４よりも短い
リンク９の存在によりアーム７の中間部が走行装
置２側に引下げられ、ブーム４とアーム７の交差
角度βが小さく（鋭角に）なり、アーム７の先端
が後下がりに傾斜し、そのアーム７の軸線の対地
角が上記掘削時の対地角γよりも小さくなる。こ
れによつてアーム７が垂直に近い傾斜状態（掘削
時）から水平に近い傾斜状態（不使用時）に変更
され、アーム７およびバケツト装置１２の先端が
排土シユート１３の上端より上方に突出すること
が防止されるとともに、走行車体３の上面から上
方への排土シユート１３等の突出量が小さくな
り、全体高さＨが最小限に抑えられる。 Next, after digging the trench, as shown by the chain line, the arm 7 is raised by raising the boom 4 with the cylinder 6 so that its tip is positioned further forward of the vehicle body than the pivot (shaft) 5 at the lower end of the boom. The bucket device 12 is pulled up and evacuated above the ground E. In this case, the upper end of the arm 7 is pulled up in conjunction with the rising of the boom 4, and the middle part of the arm 7 is pulled down toward the traveling device 2 due to the presence of the link 9, which is shorter than the boom 4, so that the boom 4 and the arm 7 are The crossing angle β becomes small (to an acute angle), the tip of the arm 7 is inclined backwardly, and the angle of the axis of the arm 7 with respect to the ground becomes smaller than the angle with the ground γ during excavation. As a result, the arm 7 changes from a nearly vertical tilted state (during excavation) to a nearly horizontal tilted state (when not in use), and the tips of the arm 7 and the bucket device 12 protrude upward from the upper end of the earth removal chute 13. At the same time, the amount of upward protrusion of the earth discharge chute 13 and the like from the upper surface of the traveling vehicle body 3 is reduced, and the overall height H is suppressed to a minimum.
以上説明したように本考案によれば、溝の掘削
時には、ブーム倒伏状態でブームとバケツトアー
ムの交差角度を大きく（鈍角に）し、バケツト装
置を地面に対して垂直に近い後下がりの傾斜状態
で喰込ませて、走行しながら連続的に効率よく掘
削できる。しかも、不使用時には、ブームの引起
こしによつてブームとバケツトアームの交差角度
を小さく（鋭角に）し、バケツト装置を地面に対
して水平に近い後下がりの傾斜状態に保持するこ
とによつて、バケツト装置の先端を地面から上方
に大きく退避させることができ、凹凸の大きい路
面でもバケツト装置の先端が地面に衝突しないよ
うにして移動できる。また、ブーム先端、バケツ
トアームおよびバケツト装置の上端ならびに排土
シユート等の車体上方への突出量を小さくでき、
溝掘機の全体高さを低くしてトラツク輸送等に支
障なく用いることができる。とくに、上記交差角
度の変更ならびにバケツトアームの傾斜状態の変
更により、バケツトアームを長くしなくても、掘
削時には溝深さを深く、不使用時の移動およびト
ラツク輸送時には全体高さを低くできるという双
方の作用効果を同時に発揮でき、実用性に富むも
のである。 As explained above, according to the present invention, when excavating a trench, the intersecting angle between the boom and the bucket arm is made large (obtuse angle) when the boom is in the collapsed state, and the bucket device is tilted downward from the rear almost perpendicular to the ground. It is possible to dig continuously and efficiently while driving. Furthermore, when not in use, by raising the boom, the intersecting angle between the boom and the bucket arm is made small (to an acute angle), and the bucket device is held in a downwardly inclined state that is nearly horizontal to the ground. As a result, the tip of the bucket tote device can be largely retracted upward from the ground, and even on a highly uneven road surface, the tip of the bucket tot device can be moved without colliding with the ground. In addition, it is possible to reduce the amount of protrusion of the boom tip, bucket arm, upper end of the bucket device, soil removal chute, etc. above the vehicle body.
The overall height of the trench excavator can be lowered so that it can be used for truck transportation, etc. without any problems. In particular, by changing the above-mentioned intersection angle and changing the inclination of the bucket arm, it is possible to increase the depth of the trench when excavating and reduce the overall height when moving when not in use or transporting by truck, without having to lengthen the bucket arm. It is highly practical as it can exhibit both functions and effects at the same time.
図は本考案の実施例を示す側面図である。
１……走行車体、２……履帯式走行装置、３…
…操縦室、４……ブーム、５……水平軸（ブーム
の下端枢支部）、６……ブーム回動用シリンダ、
７……バケツトアーム、９……アーム角度変更用
リンク、１２……無帯回動式溝掘用バケツト装
置、１３……排土シユート。
The figure is a side view showing an embodiment of the present invention. 1... Traveling vehicle body, 2... Track type traveling device, 3...
...Cockpit, 4...Boom, 5...Horizontal shaft (lower end pivot of the boom), 6...Boom rotation cylinder,
7...Bucket arm, 9...Link for changing arm angle, 12...Bandless rotary ditch digging bucket device, 13...Earth removal chute.
Claims (1)
端を回動自在に枢支し、ブームの先端にバケツト
アームの上端を回動自在に連結し、バケツトアー
ムに無端回動式の溝掘用バケツト装置と排土シユ
ートを設け、走行車体のブーム下端枢支部よりも
車体後方位置にブームよりも短いアーム角度変更
用リンクの下端を回動自在に枢支するとともに、
同リンクの上端をバケツトアームの中間部に回動
自在に連結し、走行車体のブーム下端枢支部より
も車体前方位置にブーム回動用シリンダの一端を
回動自在に枢支し、同シリンダの他端をブームの
中間部に回動自在に連結し、同シリンダの伸縮に
よつてブームをその先端がブーム下端枢支部より
も後方に位置してバケツトアームの先端が前記走
行装置の下面を通る水平面よりも下方に突出する
倒伏状態と、ブーム先端がブーム下端枢支部の上
方よりも車体前方側に位置してバケツトアームの
先端が前記水平面よりも上方に退避する引起こし
状態とに変更され、かつ、ブーム倒伏時にブーム
とバケツトアームとの交差角度が大きくなり、ブ
ーム引起こし時に前記交差角度が小さくなるよう
にブームとバケツトアームとリンクとの位置関係
を設定していることを特徴とする溝掘機。 The lower end of the boom is rotatably supported on a traveling vehicle body equipped with a track-type traveling device, the upper end of a bucket arm is rotatably connected to the tip of the boom, and an endless rotary groove excavator is attached to the bucket arm. A bucket device and an earth removal chute are provided, and the lower end of an arm angle changing link shorter than the boom is rotatably supported at a position rearward of the boom lower end of the traveling vehicle body.
The upper end of the link is rotatably connected to the middle part of the bucket arm, and one end of a boom rotation cylinder is rotatably supported at a position forward of the boom lower end pivot of the traveling vehicle body. The other end is rotatably connected to the middle part of the boom, and by expanding and contracting the cylinder, the tip of the boom is positioned behind the boom lower end pivot, and the tip of the bucket arm touches the bottom surface of the traveling device. Changed to a collapsed state in which the boom protrudes below the horizontal plane through which it passes, and a raised state in which the tip of the boom is located further forward of the vehicle body than above the boom lower end pivot and the tip of the bucket arm retracts above the horizontal plane. and that the positional relationship between the boom, the bucket arm, and the link is set so that the intersection angle between the boom and the bucket arm increases when the boom is lowered, and the intersection angle becomes smaller when the boom is raised. Characteristic trench digging machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP406983U JPS59111851U (en) | 1983-01-14 | 1983-01-14 | ditch digging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP406983U JPS59111851U (en) | 1983-01-14 | 1983-01-14 | ditch digging machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59111851U JPS59111851U (en) | 1984-07-28 |
| JPS644924Y2 true JPS644924Y2 (en) | 1989-02-08 |
Family
ID=30135675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP406983U Granted JPS59111851U (en) | 1983-01-14 | 1983-01-14 | ditch digging machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59111851U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517801B2 (en) * | 1974-10-03 | 1980-05-14 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833167Y2 (en) * | 1978-02-27 | 1983-07-23 | シラサワ建機株式会社 | Trencher groove finishing edge mud removal device |
-
1983
- 1983-01-14 JP JP406983U patent/JPS59111851U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517801B2 (en) * | 1974-10-03 | 1980-05-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59111851U (en) | 1984-07-28 |
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