1 Scope
This standard specifies the type, dimension, basic parameters, technical requirements, test methods, inspection rules, marking, labeling and packaging of gearbox for chain conveyors (hereinafter referred to as gearbox).
This standard is applicable to parallel-layout-type conic and cylindrical gearbox, planetary gearbox and vertical-layout-type planetary gearbox. This gearbox is applicable to chain conveyor and crossheading chain reversed loader used for the working surface under coal mine, and also applicable to belt conveyor.
2 Normative References
The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. At time of publication, the editions indicated were valid. All the standards will be revised, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of the following standards are applicable.
