GB812869A - Improvements in and relating to a drilling machine - Google Patents

Improvements in and relating to a drilling machine

Info

Publication number
GB812869A
GB812869A GB33507/57A GB3350757A GB812869A GB 812869 A GB812869 A GB 812869A GB 33507/57 A GB33507/57 A GB 33507/57A GB 3350757 A GB3350757 A GB 3350757A GB 812869 A GB812869 A GB 812869A
Authority
GB
United Kingdom
Prior art keywords
motor
drill
feed
speed
button
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
Application number
GB33507/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CONST ELECTRO MECANIQUES DE SA
Original Assignee
CONST ELECTRO MECANIQUES DE SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CONST ELECTRO MECANIQUES DE SA filed Critical CONST ELECTRO MECANIQUES DE SA
Publication of GB812869A publication Critical patent/GB812869A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/06—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using cams, discs, rods, drums or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

812,869. Portable drilling-machines. CONSTRUCTIONS ELECTRO-MECHANIQUES DE SAINT-ETIENNE, ANCIENNE USINE WAGEOR. Oct. 28,1957 [Oct. 31,1956], No. 33507/57. Class 83 (3). A portable electric drilling-machine comprises a feed screw 26 and a nut 27, one of which is rotated by a main motor M1 rotating the drill 20 and the other of which is rotated by an auxiliary variable-speed motor M2 with two speed ranges. The speed ranges are obtained by providing the motor M2 with two stator windings having respectively four and six poles. Three windings may, however, be provided. The motor M2 is mounted at the rear of twin guides 10 which support the main motor M1, a fixed drill guide 21 and a movable guide 22. The motor M2 has a slip (15 per cent) greater than than that of the motor M1 (5 per cent) and is a squirrel-cage asynchronous motor. Associated with the machine is a control panel 32 having push buttons A-F and a control box 33 containing relays and contactors. The pushbuttons initiate stopping and starting of the motor M1 (A, B), reduction of drill-feed-speed, (C), stopping of drill feed, (D), reversal of drillfeed (E), and increase of drill-feed (F). Switches G, H on the guide members 10 limit forward and rearward travel. In operation, the button B is pressed to start the motor M1, the button C is pressed to start the motor M2 at a low speed and button F to increase the feed speed. The drill is then fed at a fast rate until the load on the motor M1 reaches a given value and an overload relay is actuated to cause the slow feed to again operate. The drill may then be reversed by pressure on the button E, causing the motor M2 to rotate at its high speed in the drill-withdrawing direction. The buttons D, A are then pressed to stop the motors M2, Ml.
GB33507/57A 1956-10-31 1957-10-28 Improvements in and relating to a drilling machine Expired GB812869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR812869X 1956-10-31

Publications (1)

Publication Number Publication Date
GB812869A true GB812869A (en) 1959-05-06

Family

ID=9265865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33507/57A Expired GB812869A (en) 1956-10-31 1957-10-28 Improvements in and relating to a drilling machine

Country Status (1)

Country Link
GB (1) GB812869A (en)

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