YHC type rope changer is an original mine system equipment suitable for mine vertical shaft friction lifting system, installation and replacement of lifting rope and balance tail rope. The rope changing vehicle transports the steel wire rope through a plurality of sets of infinite carrying units, and completes the wire rope retracting work under the premise of ensuring no damage to the rope; the advanced intelligent electro-hydraulic control system is used to realize the absolute synchronous retracting of the lifting machine and the changing rope car. Rope action; using the optimized wellhead interchangeable rope changing process, under the premise of maintaining the tension of the lifting system, the old rope is taken at the same time, and the new and old ropes of the mine lifting system are synchronously exchanged. Sitting protection device.