A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MULTIPLE SPINDLE EXCAVATION DEVICE
PROBLEM TO BE SOLVED: To solve the problem of becoming severe in wear of respective components, since a selection range of the work object ground becomes narrow when boring performance reduces, and since push-in resistance is applied to a fitting part of an inter-axial connection body and an excavation shaft, when weight of a boring mechanism and an excavation part originally required for excavation by a multiple spindle excavation device canot be added to the excavation head tip, by the push-in resistance (descent resistance) to the unexcavated ground except for an excavation part of an excavation head.SOLUTION: An upper part of a plurality of excavation shafts 8 having an excavation head 10 is connected by an inter-axial connection body 15, and the inter-axial connection body 15 is provided with an inter-axial excavation device 20 for excavating the lower unexcavated ground 21 between the excavation heads 10. The inter-axial excavation device 20 comprises an excavation body 25 for reciprocating in the length direction by a driving transmission part 35 for transmitting rotation of the excavation shafts 8. In a multiple spindle excavation device, the driving transmission part 35 is constituted so that a cam body 36 for rotating around the vertical axis is provided on the excavation shafts 8 in a fixed state, and a cylindrical crank cylinder part 38 is rotatably fitted in the vertical axis to the outer periphery of the cam body 36.SELECTED DRAWING: Figure 2
【課題】掘削ヘッドの掘削部分以外の未掘削地盤への押込抵抗（下降抵抗）により、本来多軸掘削装置による掘削に必要な掘進機構および掘削部品の重量が掘削ヘッド先端に加えられなくなり、掘進性能が低下して作業対象地盤の選択範囲が狭くなると共に、軸間連結体と掘削軸との取付部分に押込抵抗が掛かり、各構成品の損耗が激しくなるという課題がある。【解決手段】掘削ヘッド１０を有する複数の掘削軸８の上部を軸間連結体１５により連結し、軸間連結体１５には掘削ヘッド１０の間の下方の未掘削地盤２１を掘削する軸間掘削装置２０を設ける。軸間掘削装置２０は、掘削軸８の回転を伝達する駆動伝達部３５により長さ方向に往復移動する掘削体２５を有して構成する。駆動伝達部３５は、掘削軸８に、縦軸回転するカム体３６を固定状態に設け、カム体３６の外周には縦軸心で円筒形状のクランク筒部３８を回転自在に嵌合させて構成した多軸掘削装置。【選択図】図２
MULTIPLE SPINDLE EXCAVATION DEVICE
PROBLEM TO BE SOLVED: To solve the problem of becoming severe in wear of respective components, since a selection range of the work object ground becomes narrow when boring performance reduces, and since push-in resistance is applied to a fitting part of an inter-axial connection body and an excavation shaft, when weight of a boring mechanism and an excavation part originally required for excavation by a multiple spindle excavation device canot be added to the excavation head tip, by the push-in resistance (descent resistance) to the unexcavated ground except for an excavation part of an excavation head.SOLUTION: An upper part of a plurality of excavation shafts 8 having an excavation head 10 is connected by an inter-axial connection body 15, and the inter-axial connection body 15 is provided with an inter-axial excavation device 20 for excavating the lower unexcavated ground 21 between the excavation heads 10. The inter-axial excavation device 20 comprises an excavation body 25 for reciprocating in the length direction by a driving transmission part 35 for transmitting rotation of the excavation shafts 8. In a multiple spindle excavation device, the driving transmission part 35 is constituted so that a cam body 36 for rotating around the vertical axis is provided on the excavation shafts 8 in a fixed state, and a cylindrical crank cylinder part 38 is rotatably fitted in the vertical axis to the outer periphery of the cam body 36.SELECTED DRAWING: Figure 2
【課題】掘削ヘッドの掘削部分以外の未掘削地盤への押込抵抗（下降抵抗）により、本来多軸掘削装置による掘削に必要な掘進機構および掘削部品の重量が掘削ヘッド先端に加えられなくなり、掘進性能が低下して作業対象地盤の選択範囲が狭くなると共に、軸間連結体と掘削軸との取付部分に押込抵抗が掛かり、各構成品の損耗が激しくなるという課題がある。【解決手段】掘削ヘッド１０を有する複数の掘削軸８の上部を軸間連結体１５により連結し、軸間連結体１５には掘削ヘッド１０の間の下方の未掘削地盤２１を掘削する軸間掘削装置２０を設ける。軸間掘削装置２０は、掘削軸８の回転を伝達する駆動伝達部３５により長さ方向に往復移動する掘削体２５を有して構成する。駆動伝達部３５は、掘削軸８に、縦軸回転するカム体３６を固定状態に設け、カム体３６の外周には縦軸心で円筒形状のクランク筒部３８を回転自在に嵌合させて構成した多軸掘削装置。【選択図】図２
MULTIPLE SPINDLE EXCAVATION DEVICE
多軸掘削装置
ISHII TOSHIKI (author) / HAMANO MAMORU (author) / TANAKA TOSHIO (author) / KASHIMA KAZUHIRO (author)
2017-05-18
Patent
Electronic Resource
Japanese
EXCAVATION DEVICE, EXCAVATION BLADE PLATE, AND EXCAVATION METHOD
| European Patent Office | 2018