The invention discloses a portal crane, and relates to the technical field of cranes. The device comprises a portal frame, a transverse moving sliding groove is formed in the top of the portal frame, a transverse moving sliding table is slidably connected into the transverse moving sliding groove, a winding wheel is rotatably connected to the bottom of the transverse moving sliding table, a lifting rope is wound around one end of the winding wheel, and one end of the lifting rope is fixedly connected with the bottom of the transverse moving sliding table. The transmission assembly drives the two adjusting sliding tables to move close to or away from each other in the length direction of the transverse sliding groove, then the adjusting rollers push one end of the adjusting rope to move in the length direction of the transverse sliding groove, and meanwhile the adjusting rope is tightened between the two adjusting rollers and the lifting pulley to form a stable triangular structure; and the two ends of the lifting pulley are lifted, so that when the lifting pulley shakes in the length direction of the transverse moving sliding groove under the action of external force, the adjusting rope forms collision buffering on the shaking force generated by the lifting pulley in the length direction of the transverse moving sliding groove.
本申请公开了门式起重机,涉及起重机技术领域。本申请包括龙门架,龙门架的顶部开设有横移滑槽,横移滑槽的内部滑动连接有横移滑台,横移滑台的底部转动连接有卷绕轮,卷绕轮的一端卷绕有提升绳,提升绳的一端与横移滑台的底部固定连接。本申请在传动组件带动两个调节滑台沿着横移滑槽的长度方向做相互靠拢或者远离的移动,进而使得调节辊推动调节绳的一端沿着横移滑槽的长度方向进行移动,同时使得调节绳在两个调节辊与提升滑轮之间绷紧成稳定的三角结构,并对提升滑轮的两端形成托举,以使得提升滑轮在受到外力沿着横移滑槽的长度方向产生晃动时,使得调节绳沿着横移滑槽的长度方向对提升滑轮产生的晃动力形成抵触缓冲。
Portal crane
门式起重机
2024-11-29
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |