MT/T 71-1997 in English

本标准规定了刮板输送机用开口式连接环(以下简称“连接环”)的型式尺寸、技术要求、试验方法检验规则、标志、包装、运输和贮存。
本标准适用于煤矿井下边双链刮板输送机和转载机，与矿用高强度圆环链、刮板相连接使用的连接环。

Scope

This standard specifies the type and size, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of open connecting rings for scraper conveyors (hereinafter referred to as "connecting rings"). This standard is applicable to double-chain scraper conveyors and transfer machines under coal mines, and the connections used to connect high-strength circular link chains and scrapers for mining.