Maintenance trolley and friction type conveying equipment

The utility model discloses a maintenance trolley and friction type conveying equipment, the maintenance trolley comprises a chassis, a winch and a pulley block, the chassis is generally a rectangular frame, the middle of the chassis is of a through structure equivalent to a hollow structure, four moving rollers are arranged on the periphery of the chassis, and stand column assemblies are arranged at the two ends of the chassis. A longitudinal beam is connected between the two stand column assemblies. The winch is connected to the chassis or the stand column assembly and provided with a driving part. The pulley block is connected to the longitudinal beam, and the winch and the pulley block are connected with a sling (not shown in the figure). When the maintenance trolley is used, the movable rolling wheels are moved to the position where the friction driving assembly is located, the sling and the friction driving assembly are fixedly connected, the winch is driven by the driving component to rotate, the frict