| 摘要 |
A machine for truing the collectors or other rotating contact members of a motor, comprises a tool-holder carriage adapted to be fixed either against a brush-holder support associated with the collector or rotor, or against the face of the lower access opening of the casing of the motor, the engagement being provided by a connector coupled to the frame. Truing is effected by an abrasive stone driven in reciprocating motion along the collector. A double blowing and suction nozzle eliminates the dust. A brush and a sensor may be mounted on the carriage to eliminate the adherent dust and monitor eccentricity. The carriage is borne by a pivotable fork, by a parallelogram and by a double carriage rolling in a pit beneath the railway track. |
