Railless vechicle for underground mining

• US 4,511,100 A
• Filed: 03/09/1983
• Issued: 04/16/1985
• Est. Priority Date: 03/13/1982
• Status: Expired due to Fees

• Current Assignee: Man Maschinenfabrik Augsburg-Nurnberg AG
• Original Assignee: Man Maschinenfabrik AG
• Inventors: Oetringhaus, Walter G.
• Primary Examiner(s): Levy, Stuart S.
• Assistant Examiner(s): Doigan, Lloyd D.
• Application Number:
  US06/473,606
• Time in Patent Office: 769 Days
• Field of Search: 242/54 R, 242/75.3, 242/75.53, 242/86.51, 242/865 R, 180/2 R, 180/65 R, 180/271, 191/12.2 R, 191/12.2 A
• US Class Current: 242/390.6
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 2200/40 Working vehicles
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: B60L 9/00 Electric propulsion with power supply external to the vehicle electric propulsion for monorail vehicles, suspension vehicles or rack railways B60L13/00; in combination with batteries or fuel cells within the vehicle B60L50/53
• CPC Class Codes: B60L 9/16 using ac induction motors
• CPC Class Codes: B65H 75/425 attached to, or forming part of a vehicle, e.g. truck, trailer, vessel
• CPC Class Codes: B65H 75/4489 Fluid motors
• CPC Class Codes: H02G 11/02 using take-up reel or drum
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A railless vehicle for use underground is equipped with a three-phase asynchronous motor as the principal drive, and a power distributor with a plurality of power inputs as well as a magazine drum for the wind up or pay out of the power supply line. The drum 2 is connected to the distributor 8 through a hydrostatic drive 10. The control of hydrostatic drive 10 is a function of the slack of the free, not wound up portion of the supply line 3. This slack is detected by a contact lever 5, translated by a converter 14, and transmitted to a torque control 13, to vary the wind up or payout speed of the drum. Any undue horizontal and vertical deflections of the power supply line 3 are effective to switch off the principal drive 7.

Claims

1. An electrically operated railess underground vehicle which is adapted to be supplied with electrical power from a stationary energy source of electrical power, comprising:

a vehicle body (1);

a rotatable magazine drum (2) mounted on said body;

a power line (3) adapted to be connected to a power source for operating said vehicle and windable on said drum in a winding direction and in an unwinding direction;

a three phase asynchronous motor (7) mounted on said body;

a power distributor (8) mounted on said body and connected to said asynchronous motor, said distributor having at least two rotary power outputs (9d,9c) rotatable by said asynchronous motor;

a controllable hydrostatic drum drive (10) connected to one of said outputs (9d) and including a hydraulic pump (12) and a hydraulic motor (11) rotatable by said pump to rotate said drum in the winding direction and in the unwinding direction;

a torque control (13) connected to said hydrostatic drum drive for controlling a speed and a direction of rotation of said hydraulic motor;

a controllable hydrostatic vehicle travel drive connected to the other output (9c) of said distributor for causing said vehicle to travel in a selected direction;

a travel drive control (24) connected to said vehicle travel drive and to said torque control for stopping travel of the vehicle in response to a limiting signal from said torque control;

a converter (14) connected to said torque control for supplying signals to said torque control including a signal for rotating said drum in the winding direction, a signal for rotating said drum in the unwinding direction and a limitation signal for causing said torque control to generate its limiting signal to stop the travel of said vehicle;

a lever member (5) connected to said converter and engaged with said power line, said lever member being pivotable upwardly and downwardly with changes in a relative angular position between said power line and said vehicle body for causing said converter to supply signals to said torque control for winding and unwinding said drum, said lever member movable out of a selected range of upward and downward positions to cause said converter to generate said limitation signal for stopping travel of said vehicle, said lever member being movable in a selected lateral angular range, said lever member causing said converter to generate said limitation signal when said cable moves out of said lateral range to stop travel of said vehicle; and

a brake line connected to said torque control for carrying said limiting signal of said torque control for braking travel of said vehicle.