Sleeve frame roller structure suitable for round pipe standard section and crane

The utility model discloses a stock roller structure suitable for a round tube standard knot and a crane, solves the problem that the jacking safety is influenced due to the fact that a single roller cannot clamp a main chord of a tower body in the prior art, and has the beneficial effect of ensuring the jacking safety. Comprising a roller body, the roller body is rotatably mounted on a sleeve frame of a crane, a concave part is annularly arranged on the roller body, the concave part has set depth and width, the end parts of two sides of the concave part of the roller body are matched with the outer side surface of a main chord of a tower body, and a circle of concave part is annularly arranged on the roller body. 本实用新型公开了一种适合于圆管标准节的套架滚轮结构及起重机，解决了现有技术存在单滚轮存在卡不住塔身主弦而影响顶升安全性中的问题，具有保证顶升安全性的有益效果，具体方案如下：一种适合于圆管标准节的套架滚轮结构，包括滚轮本体，滚轮本体可转动安装于起重机的套架，滚轮本体环向设置凹部，凹部具有设定的深度和宽度，滚轮本体凹部两侧的端部与塔身主弦外侧面配合，滚轮本体的环向设置一圈所述的凹部。