the following improvements

Overhead crane in use and easy off, sometimes in the transmission conduit sparks some serious blasting trolley line ", resulting collector replaced too frequently, affecting production. To this end, the following improvements:

(A) increasing the collector brushes chamfered and polished smooth;

(2) increasing the collector between two opposite brush spring strength, flexibility, Electric pallet truck spring return freely;

(3) to deepen. Reinforcement collector in a spring seat, the return spring to ensure the brush is not easy in the work "bit string";

(4) two safety trolley line connections connecting block should be chamfered to ensure a smooth transition collector. Meanwhile, to ensure the safety of the normal use of the trolley line, driving workers standardize operations, maintenance workers of periodic maintenance, periodic inspection is also essential.