公开(公告)号：US4080002A

公开(公告)日：1978-03-21

申请号：US731875

申请日：1976-10-13

Applicant: Clarence Roy Agin

Inventor： Clarence Roy Agin

IPC: E21C27/24 ,  E21C31/06 ,  E21C25/50

CPC classification number: E21C27/24 ,  E21C31/06

Abstract: An improved locking device for a trim chain take-up for mining machines in which the trim chain extends around the auger and the auger support arms and is driven by the auger to cut clearance for the support arm. The take-up is slidably mounted behind the auger support arm in guide means affixed to the machine frame. When the take-up is moved away from the support arm to increase the tension on the chain, the locking device moves into the space developed between the take-up and support arm to prevent the take-up from backing off and reducing the chain tension. The locking device comprises a plurality of thin spacers pivotably retained in a side-by-side stacked relationship on a rod mounted to the support arm. The spacers are further disposed such that they are held in an inoperative position resting on the take-up until the take-up has moved past their respective positions whereupon they pivot about the rod into the operative position between the take-up and support arm.

Abstract translation: 一种改进的用于采矿机的装饰链条卷绕装置的锁定装置，其中装饰链围绕螺旋推运器和螺旋推运器支撑臂延伸并由螺旋钻驱动以切割支撑臂的间隙。 卷取物可滑动地安装在螺旋钻支撑臂的后面，固定在机架上的引导装置中。 当卷取物从支撑臂移开以增加链条上的张力时，锁定装置移动到在卷取和支撑臂之间形成的空间中，以防止卷取物脱落并降低链条张力 。 锁定装置包括在安装到支撑臂上的杆上以并排堆叠关系可枢转地保持的多个薄间隔件。 间隔件被进一步布置成使得它们被保持在搁置在卷取机上的不工作位置，直到卷取已经移动超过它们各自的位置，然后它们围绕杆枢转到卷取和支撑臂之间的操作位置。