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发明公开
CN110821482A 多功能大直径钻孔形变监测用钻孔孔径自动补偿装置 审中-实审

多功能大直径钻孔形变监测用钻孔孔径自动补偿装置
摘要：
本发明公开了一种多功能大直径钻孔形变监测用钻孔孔径自动补偿装置，涉及煤矿深部开采监测设备领域，包含托盘架、发泡胶容器、发泡包裹体、发泡开关和开关驱动力传输管路，所述钻孔形变感应油囊固定设置于大直径钻孔内托盘架的前端，所述托盘架的后端固定设置发泡胶容器，所述发泡包裹体与发泡胶容器通过发泡开关连通，所述发泡开关与开关动力传输管路连接，通过外部动力源提供动力开启，所述发泡胶容器内的发泡胶通过发泡包裹体填充所述钻孔形变感应油囊与大直径钻孔内壁之间的空隙。本发明可以用于≥Φ110mm以至Φ200mm的大直径泄压孔形变监测，还可用于煤层瓦斯抽放封孔、钻孔测压封堵，是一种具备多功能的钻孔孔径自动补偿装置。
摘要（英）：

The invention discloses a multifunctional borehole diameter automatic compensation device for large-diameter borehole deformation monitoring, and relates to the field of deep coal mining monitoring equipment. The device comprises a tray rack, a polyfoam container, a foaming inclusion, a foaming switch and a switching driving force transmission pipeline, wherein a borehole deformation sensing oil bag is fixed at the front end of the tray rack in a large-diameter borehole, the polyfoam container is fixed at the rear end of the tray rack, the foaming inclusion communicates with the polyfoam container through the foaming switch, the foaming switch is connected with the switching driving force transmission pipeline, power is provided by an external power source for starting, and polyfoam in thepolyfoam container fills a gap between the borehole deformation sensing oil bag and the inner wall of the large-diameter borehole through the foaming inclusion. The device can be used for monitoringlarge-diameter pressure relief hole deformation in a range larger than or equal to phi 110 mm to phi 200 mm, can also be applied to coal-bed gas drainage hole sealing and borehole pressure measurementand plugging, and is one borehole diameter automatic compensation device with multiple functions.

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