Analysis and Countermeasures of Abrasion of Traction Wheels of SS4 Locomotive Operating on Da-Qin Railway

The paper states that according to analysis the abrasion of traction wheels of the modified electric, type SS4, mainly occurs in high speed section when resistance brake is applied on the Da Qin railway, causing the break down of the balance of the adhesion between wheel and rail and the micro sliding of the traction wheel. It points out that the antislide system of this type of locomotive mainly controls the macro sliding. Therefore, the resistance brake performance of the SS4 eclectic locomotive should be further improved if the issue of abrasion is to be resolved. The measures to overcome it are to prevent the quick rise of the exciting current when resistance brake is applied and to limit the brake current in the high speed section.