Title:
POWER TRANSMISSION METHOD TO CASING AND DEVICE THEREOF IN CASING-ROTARY EXCAVATION METHOD
Document Type and Number:
Japanese Patent JP2983001
Kind Code:
B2
Abstract:
PURPOSE: To improve safety and securely transmit a driving power, by fitting a plurality of power transmission members provided in the inside of a power transmission pipe of an excavating machine and pads provided in the outer periphery of a easing so as to be able to cope with the rotary force, the pushing-in force, and the pulling-out force.
CONSTITUTION: A pad 3 of a easing 2 is positioned in the clearance 15 between rectangular parts (d), (f) of a power transmission members 14 of a power transmission pipe 13. Then the pipe is rotated to catch the pad 3 within the power transmission member 14 and the pipe 13 is lowered to connect the pad 3 to the transmission member 14. Then, when the pipe 13 is lowered while rotating it, since the pad 3 is connected to the transmission member 14, the casing 2 is rotated without slipping and lowered. After excavation, the pad 3 is stopped at the clearance 15 and the pipe is reversely rotated to disconnect them. And further, the pipe 13 is raised up to the next higher pad 3 of the casing 2 and the same operation is repeated for more excavate. In this way, the connected parts are prevented from slipping and fixed or unfixed securely.
Inventors:
SHIMAI MORYUKI
NOMURA TAKENORI
NOMURA TAKENORI
Application Number:
JP2292195A
Publication Date:
November 29, 1999
Filing Date:
February 10, 1995
Export Citation:
Assignee:
KAJIMA KENSETSU KK
International Classes:
E21B3/00; E21B7/20; E21D1/03; (IPC1-7): E21B7/20
Domestic Patent References:
| JP497993U |
Attorney, Agent or Firm:
Toshitada Takahashi (1 outside)