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A platform for research: civil engineering, architecture and urbanism
DRIVE CONTROL METHOD FOR GROUND IMPROVEMENT DEVICE AND GROUND IMPROVEMENT DEVICE
To solve the problem in which, in the conventional control system that automatically selects the optimum drive torque according to the nature of the ground, a drive motor is driven with a margin of about 70%, so the output is always about 30% less than it should be, which reduces the work efficiency.SOLUTION: There is provided a drive control method of a ground improvement device, in which a rotary drive unit 3 is attached to a leader 2 on a base machine 1 so as to be raised and lowered freely, an upper part of a rotary shaft 4 that drives a ground improvement device 5 that performs ground improvement and excavation work is attached to a lower part of the rotary drive unit 3, an agitation rod 10 of the ground improvement device 5 is attached to the rotating shaft 4, and a drive motor 20 of the rotary drive unit 3 is automatically controlled in relation to the lifting speed of the ground improvement device 5 by a lifting motor 17 so that the maximum output is always output.SELECTED DRAWING: Figure 1
【課題】従来の、地盤の性状に応じて、最適な駆動トルクを自動選択する制御では、７割程度の余裕を持たせて駆動モーターを駆動するため、常時、３割程度の出力が発揮されず、その分作業効率が低下していた。【解決手段】ベースマシン１に設けたリーダー２に昇降自在に回転駆動部３を取付け、回転駆動部３には下部に地盤改良や掘削作業を行う地盤改良装置５を駆動する回転軸体４の上部側を取付け、回転軸体４には地盤改良装置５の撹拌ロッド１０を取付け、回転駆動部３の駆動モーター２０を、常に最大出力を出力するように、昇降モーター１７による地盤改良装置５を昇降させる昇降速度と関連させて自動制御する地盤改良装置の駆動制御方法。【選択図】図１
DRIVE CONTROL METHOD FOR GROUND IMPROVEMENT DEVICE AND GROUND IMPROVEMENT DEVICE
To solve the problem in which, in the conventional control system that automatically selects the optimum drive torque according to the nature of the ground, a drive motor is driven with a margin of about 70%, so the output is always about 30% less than it should be, which reduces the work efficiency.SOLUTION: There is provided a drive control method of a ground improvement device, in which a rotary drive unit 3 is attached to a leader 2 on a base machine 1 so as to be raised and lowered freely, an upper part of a rotary shaft 4 that drives a ground improvement device 5 that performs ground improvement and excavation work is attached to a lower part of the rotary drive unit 3, an agitation rod 10 of the ground improvement device 5 is attached to the rotating shaft 4, and a drive motor 20 of the rotary drive unit 3 is automatically controlled in relation to the lifting speed of the ground improvement device 5 by a lifting motor 17 so that the maximum output is always output.SELECTED DRAWING: Figure 1
【課題】従来の、地盤の性状に応じて、最適な駆動トルクを自動選択する制御では、７割程度の余裕を持たせて駆動モーターを駆動するため、常時、３割程度の出力が発揮されず、その分作業効率が低下していた。【解決手段】ベースマシン１に設けたリーダー２に昇降自在に回転駆動部３を取付け、回転駆動部３には下部に地盤改良や掘削作業を行う地盤改良装置５を駆動する回転軸体４の上部側を取付け、回転軸体４には地盤改良装置５の撹拌ロッド１０を取付け、回転駆動部３の駆動モーター２０を、常に最大出力を出力するように、昇降モーター１７による地盤改良装置５を昇降させる昇降速度と関連させて自動制御する地盤改良装置の駆動制御方法。【選択図】図１
DRIVE CONTROL METHOD FOR GROUND IMPROVEMENT DEVICE AND GROUND IMPROVEMENT DEVICE
地盤改良装置の駆動制御方法および地盤改良装置
TORIKAI MITSUTOSHI (author)
2021-11-25
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
GROUND IMPROVEMENT DEVICE, GROUND IMPROVEMENT SYSTEM, AND GROUND IMPROVEMENT METHOD
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