Development and application of multi-functional flexible lifting cabin for mine rescue

Mine rescue elevator and elevator car together constitute a complete set of lifting rescue equipment, is one of the important equipment of surface drilling rescue, its performance has an important impact on the success or failure of mine emergency rescue. In order to solve the problem of anti-torque in the process of lifting and lowering rescue wire rope, a split device based on explosion-proof slip ring is developed to realize the split between the wire rope and the lifting cabin, so as to avoid the lifting chamber driving the rotation of the wire rope during the rescue process, interfering with the signal transmission of the wire rope and damaging the wire rope braid structure, and thus realize the dual functions of communication wire rope lifting and communication. A large spherical flexible rotating device is designed to realize the bending of the upper and lower cabin bodies, and the bending angle is not less than 2.4°, which enhances the adaptability of the lifting cabin body to complex shaft walls such as large curvature and local bulges, so as to strengthen the passability of the lifting cabin. Through ergonomic theories and technologies, ergonomic components such as auxiliary entry, sitting and holding posture, as well as upper and lower side buffer and bottom buffer are developed to provide all-round protection for rescued personnel and the cabin itself. The communication system based on borehole diameter measurement, gas measurement and audio and video communication device is developed to realize visual rescue from monitoring borehole wall, gas and environmental parameters, rescued personnel and other aspects to ensure the safety of rescue process. After the integration of the flexible rescue elevator with the elevator vehicle, the no-load, heavy-load and manned tests were carried out in the demonstration project of Meijing Mine in Ningxia, and the performance of the flexible rescue elevator was fully verified.