发明名称 Swivel assembly for a conveyor
摘要 A mining machine having a body portion mounted on propelling tracks includes an endless conveyor mechanism positioned on a conveyor support frame that extends longitudinally on the body portion. The conveyor support frame includes a main conveyor section connected by a link member to a conveyor boom section arranged for lateral swinging movement relative to the main conveyor section. The main conveyor section and the conveyor boom section each include an integral gear member. The gear members of the respective sections are maintained in meshing relation by pivot pins interconnecting the link member with the respective sections. A hydraulic cylinder having an extensible piston rod preferably connects the conveyor boom section to the link member. Actuation of the hydraulic cylinder extends or retracts the piston rod to laterally swing the pivot connection of the conveyor boom section in a preselected direction relative to the pivot pin connection on the main conveyor section. Movement of the pivot pin connection on the conveyor boom section contemporaneously rotates the boom section gear member in the same preselected direction relative to the main conveyor section gear member, such that the conveyor boom section moves through twice the angle of rotation of the pivot pin connection of the conveyor boom section. Thus, the pivotal movement of the link member and the rotation of the conveyor boom section gear member laterally swings the conveyor boom section relative to the main conveyor section through an expanded arc.
申请公布号 US4089403(A) 申请公布日期 1978.05.16
申请号 US19760740300 申请日期 1976.11.09
申请人 NATIONAL MINE SERVICE COMPANY 发明人 FREED, JR., DONALD L.;BAUM, GERALD L.
分类号 B65G21/14;(IPC1-7):B65G21/14;B65G41/00 主分类号 B65G21/14
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