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He Zhen
Huang Maolin
Xiang Chengxuan
School of Mechanical Engineering, Chongqing University,
Chongqing 400044, China |
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STUDY AND
PRACTICE ON ELIMINA- TING OVERCONSTRAINT TO REDUCE SENSITIVITY
TO ERROR IN BLAST FURNACE TAPHOLE DRILL*
Abstract: Aimed at bad robustness of taphole drill of 1 200 m3 blast furnace in a iron and steel works, overconstraint of the mechanism is analyzed, which is closed-chain six-bar mechanism. Then its structure design to eliminate overconstraint
is discussed, and non--overconstraint basic links combinations and their configuration pattern are presented, combined with working characteristic and movement precision requirement of taphole drill, desired configuration pattern is selected. In this way, the ma-chine runs smoothly, its efficiency is high.
Key words:
Taphole drill Overconstraint Structure configuration |