我矿φ2100毫米弹簧圆锥破碎机机座上48个φ45毫米的弹簧螺栓孔,易磨损成近似于椭圆孔,大小不一,常将弹簧螺栓卡住,使保险弹簧失效。以往我们采取堆焊镗孔或扩孔镶套,这样做法一般要停机12～15天,约需300小时,900个工时,修补一次,用一年左右。应用环氧树脂修补,只需停机2天,主要是拆装、清洗检查,实际修补只需8小时,约32个工时,修 Mine mine φ2100 mm spring cone crusher seat 48 φ45 mm spring bolt hole, easy to wear into the approximate oval hole, the size of different, often the spring bolt stuck, so that the failure of the insurance spring. In the past we used to surfacing boring or reaming set, this approach generally shut down 12 to 15 days, about 300 hours, 900 working hours, repair time, with a year or so. Application of epoxy repair, just downtime 2 days, mainly disassembly, cleaning inspection, the actual repair only 8 hours, about 32 working hours, repair