Slab band rolling mill backing roll roll change activity telescopic cover board device

The utility model discloses a slab band rolling mill backing roll roll change activity telescopic cover board device, including the pit, establish the roll change track in the pit and establish the roll change railcar on the roll change track to and pit apron, the pit apron has and covers web wheel, lid web wheel is located the orbital both sides of roll change, roll change railcar and pit apron fixed connection. Compared with the prior art, the utility model, realized the automation that the apron removed, reduced operating personnel's intensity of labour, avoided the incident of roll changeoperation and hoist and mount apron, had easy operation, convenient to use, area advantage such as little. 本实用新型公开了种板带轧机支承辊换辊活动伸缩盖板装置，包括地坑，设在地坑中的换辊轨道和设在换辊轨道上的换辊轨道车，以及地坑盖板，所述地坑盖板下设有盖板轮，所述盖板轮位于换辊轨道的两侧，所述换辊轨道车与地坑盖板固定连接。本实用新型与现有技术相比，实现了盖板移动的自动化，降低了操作人员的劳动强度，避免了换辊操作和吊装盖板的安全事故，具有操作简单，使用方便，占地面积小等优点。