Specialists of the Novosibirsk Electric Locomotive Repair Plant (NERZ, part of the Sinara – Transport Machines machine-building holding) have put into operation a machine for repairing armature commutators of traction electric motors (TEM) of 2ES6 "Sinara" electric locomotives. This was reported by the holding's press service.
The equipment can perform a full cycle of mechanical processing of TEM armature commutators: turning, grooving, grinding, and polishing. Previously, this unit had to be reinstalled on different machines. Now the duration of the production cycle has been reduced.
A special source of pride is the machine vision system with an accuracy of up to 0.001 mm. It distinguishes between copper and micanite, so the geometry of the products remains within tolerances, and the quality of processing is at a high level.
The machine also processes the armatures of the 4PNZH200 electric motor on EP2K electric locomotives. Previously, this work was performed manually.
The traction motor commutator is a cylindrical armature assembly consisting of insulated copper plates. The unit provides current supply to the winding and switches its direction. The operation of the locomotive depends on the commutator.
Two-section main DC electric locomotives 2ES6 "Sinara" have been produced at the Ural Locomotives plant (part of the Sinara – Transport Machines holding) since 2006. A total of more than 1500 locomotives of this model have been produced. Their repair is being mastered at NERZ facilities.