公开(公告)号：US5062613A

公开(公告)日：1991-11-05

申请号：US620708

申请日：1990-12-03

申请人： Peter Petrachkoff

发明人： Peter Petrachkoff

IPC分类号： C21C5/46

CPC分类号： C21C5/4613 ,  C21C5/462

摘要： A BOF sublance hoist system including a two speed hoist drive for rapidly moving the sublance through a non-critical distance above the molten metal bath within the BOF and then slowly moving the sublance through a critical spotting distance for enabling safe insertion and withdrawal of the sublance into and from the bath. The drive includes a first electric motor for rapid movement, a second electric motor for the slower movement and an emergency air motor to be used in place of the second motor in the event of electrical power failure. When the first motor is in operation, the second motor is shut off and its brake is set. The reverse is true for times when the second motor is operating. A planetary gear system which is driven internally by the first motor and externally by the second motor serves as the gear reducer for permitting power transmission to the hoist drum to be achieved through operation of either the first, second or third motor. The system further includes means for seizing a carriage which supports the sublance should a free-fall of the carriage be detected.

摘要翻译： 一种BOF升降葫芦系统，包括一个双速葫芦驱动器，用于在BOF内的熔融金属熔池之上的非关键距离上快速移动该升降and and and ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance ance 进出洗澡 驱动器包括用于快速移动的第一电动马达，用于较慢运动的第二电动马达和在电力故障的情况下用于代替第二马达的紧急空气马达。 当第一个电机运行时，第二个电机被关闭，其制动器被置位。 第二个电机正在运行的时候是相反的。 由第一电动机内部由第二电动机驱动的行星齿轮系统用作齿轮减速器，用于允许通过第一，第二或第三电动机的操作来实现提升转鼓的动力传递。 该系统还包括用于抓住支架的支架的装置，如果检测到滑架的自由下落。

公开(公告)号：US4944383A

公开(公告)日：1990-07-31

申请号：US292946

申请日：1989-01-03

申请人： Peter Petrachkoff

发明人： Peter Petrachkoff

IPC分类号： B21B39/00 ,  F27B9/20 ,  F27D3/00

CPC分类号： F27D3/0024 ,  B21B39/004 ,  F27B9/201 ,  F27D2003/0043 ,  F27D2003/0048

摘要： For use with a reheating furnace for reheating blooms for rolling, in which for charging the furnace with blooms a series of longitudinal moveable arms are provided, for each arm a arm supporting and lifting mechanism comprising two pair of freely rotatable hold down--counterbalancing guide rollers for engaging a tract provided on the arm, a freely rotatable support roller for supporting the arm during their movements, and a piston cylinder assembly for the arm connected to frames of the support roller for raising and lower the roller and hence the arm.

摘要翻译： 为了与再加热炉一起使用，用于再加热用于轧制的坯料，其中为了对具有花纹的炉充电，提供一系列纵向可动臂，对于每个臂，臂支撑和提升机构包括两对可自由旋转的压平平衡导辊 用于接合设置在臂上的管道，用于在其运动期间支撑臂的可自由旋转的支撑辊;以及用于臂的活塞缸组件，其连接到用于升高和降低辊以及因此臂的支撑辊的框架。