Modification of Chain Structure of 3MN Mono- chain Cold- drawing Pipe Mill

Chain is one of the critical parts composing the mono-chain cold-drawing pipe mill. Based on the problems concerning the chain occurring in operation of the mill, an overall modification of the chain mechanism of the mill is made, involving chain structure change, setting of clearance between the plate, the pin and the roller and bettering of chain lubricating conditions so as to enhance operation reliability and service span of the chain.