Title:
【発明の名称】採掘即ちトンネル堀機械のための連続制御システム
Document Type and Number:
Japanese Patent JPH10513517
Kind Code:
A
Abstract:
PCT No. PCT/CA96/00058 Sec. 371 Date Jul. 28, 1997 Sec. 102(e) Date Jul. 28, 1997 PCT Filed Jan. 30, 1996 PCT Pub. No. WO96/24753 PCT Pub. Date Aug. 15, 1996A continuous control system for a mining or tunnelling machine having a boom (12) with a motor driven cutting head (14) at one of its ends and a rotatable turret (20) at the other end, the control system comprising angular encoders (40, 44) for continuously measuring the angles of the boom (12) and of the turret (20) and a linear encoder (55) for continuously measuring the linear position of the cutting head (14), and further having pressure transducers (P1, P2, P3, P4) for continuously measuring the pressures of the various hydraulic cylinders or drives (41, 43) used to operate the boom (12) and the turret (20). It may also have a power transducer (57) for continuously measuring the power input to the motor (18) driving the cutting head (14) to control the RPM of the latter. The signals from the above various measurements are continuously processed by a computer (46) in accordance with a predetermined computer program and a controller (47) is provided which is responsive to the computer (46) and which continuously controls the various parameters so as to cut a preselected profile at a predetermined depth of cut and rate of advance.
Inventors:
Smith, Herbert A.
Hayes, Jack Earl.
Hayes, Jack Earl.
Application Number:
JP52384996A
Publication Date:
December 22, 1998
Filing Date:
January 30, 1996
Export Citation:
Assignee:
Advanced Technology Four Locks Excavation Incorporated
International Classes:
E21B7/02; E21B15/00; E21B19/08; E21C35/24; E21D9/10; (IPC1-7): E21D9/10; E21C11/02
Attorney, Agent or Firm:
Akira Asamura (3 outside)