我矿副井绞车（ＪＫＤ１．８５ × ４）为原上海冶金矿山机械厂生产 的４绳摩擦轮绞车。根据《煤矿安全规程》第３７９条之规定，其主提升绳的使用期限不得超过２年。我们在以往更换钢丝绳时．都是旧绳在绳槽内．新绳紧靠旧绳在绳槽外面，同时利用抱绳卡在四楼平台捋住新绳，以 The mine auxiliary shaft winch (JKD1.85 × 4) is a 4-wire friction winch produced by Shanghai Metallurgical Mining Machinery Factory. According to “Coal Mine Safety Regulations,” the provisions of Article 379, the main hoisting rope of the service period shall not exceed 2 years. We used to change the wire rope. All the old rope in the rope groove. The new rope close to the old rope in the rope groove, at the same time the use of rope tied to the fourth floor of the platform to live a new rope to