Roller supporting mechanism for screw hoist and stable gate

The utility model discloses a roller supporting mechanism for a screw hoist, which comprises two pairs of supports arranged at the top of a gate pier and arranged on two sides of a screw of the screw hoist; the pin shafts are arranged between each pair of supports, and the pin shafts are parallel to each other and are symmetrically arranged with the hoist screw as the center; the rollers are arranged on the pin shafts, annular grooves are formed in the rollers, the cross section of each annular groove is of an arc-shaped structure concentric with a screw of the hoist, and the rollers can provide good support for the screw with the large slenderness ratio, so that deformation of the screw is prevented, and safe work of the screw hoist is ensured. The utility model further discloses a stable gate comprising the roller supporting mechanism, the stable gate can stably operate for a long time, and the daily maintenance and repair workload is greatly reduced. 本实用新型公开了一种螺杆启闭机用滚轮支撑机构，包括：支架，设置在闸墩顶部，所述支架分成两对设置在启闭机螺杆两侧；