The invention relates to the technical field of engineering machinery, and provides a variable-amplitude pulley yoke in-groove adjusting device, an arm support assembly and a crane, the variable-amplitude pulley yoke in-groove adjusting device comprises a guide plate and an adjusting mechanism, the guide plate is used for guiding a variable-amplitude pulley yoke to enter a groove, and the first end of the guide plate is rotationally connected to an arm support; the adjusting mechanism is arranged on the arm frame, the adjusting mechanism is connected with the guide plate, and the adjusting mechanism can drive the guide plate to swing in the direction close to or away from the arm frame. The state of the guide plate can be automatically adjusted according to needs through the adjusting mechanism, labor cost and time cost are greatly saved, and the risk that the steel wire rope is separated from a groove of the variable-amplitude pulley yoke due to improper operation or extrusion of the steel wire rope by the guide plate can be avoided. And the risk that the pulleys of the variable-amplitude pulley yoke are damaged due to the fact that the lateral extrusion force of the steel wire rope is too large is avoided.
本发明涉及工程机械技术领域,并提供一种变幅滑轮架入槽调节装置及臂架组件、起重机,包括导向板和调节机构,所述导向板用于引导变幅滑轮架入槽,所述导向板的第一端转动连接在臂架上;所述调节机构设置在臂架上,且所述调节机构与所述导向板连接,所述调节机构能够驱动所述导向板沿靠近或远离所述臂架的方向摆动。通过调节机构可以根据需要自动调节导向板的状态,大大节省了人工成本和时间成本,而且还可以避免因操作不当或导向板挤压钢丝绳而造成钢丝绳从变幅滑轮架脱槽的风险,以及避免变幅滑轮架的滑轮受钢丝绳侧向挤压力过大而造成滑轮损坏的风险。
Variable-amplitude pulley yoke in-groove adjusting device, boom assembly and crane
变幅滑轮架入槽调节装置及臂架组件、起重机
2022-06-03
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Crane pulley block, crane and crane pulley block adjusting method
European Patent Office | 2023
|Port mobile crane boom head structure and pulley arrangement
European Patent Office | 2023
|