The invention relates to the technical field of lifting devices, in particular to an aerial work platform mast lifting device which comprises a lifting mast, the lifting mast is arranged at the top of a base, the lifting mast at least comprises five sleeve rods which are connected in a sleeved mode, and the five sleeve rods are the first-stage sleeve rod, the second-stage sleeve rod, the third-stage sleeve rod, the fourth-stage sleeve rod and the fifth-stage sleeve rod respectively. Wherein the first-stage sleeve rod is the outermost-layer sleeve rod, the fifth-stage sleeve rod is the innermost-layer sleeve rod, and extension or shortening of the lifting mast is achieved through relative movement between the sleeve rods; the lifting oil cylinder is fixed on the bottom plate of the secondary loop bar, and a piston rod is arranged at one end of the lifting oil cylinder; according to the multi-stage mast lifting device, synchronous lifting and contraction of the multi-stage masts are completed through the single oil cylinder, a transmission system is simplified, the production cost is reduced, the masts are smooth and free of impact when lifted, and meanwhile repair and maintenance of the lifting masts are greatly simplified through a power source of the single oil cylinder.
本发明涉及升降装置技术领域,尤其为一种高空作业平台桅杆起升装置,包括:升降桅杆,升降桅杆设置在基座的顶部,升降桅杆至少包括有五个相互套接的套杆,分别为一级套杆、二级套杆、三级套杆、四级套杆、五级套杆,其中一级套杆为最外层套杆,五级套杆为最内层套杆,通过套杆之间的相对移动实现升降桅杆的伸长或缩短;起升油缸,起升油缸固定于二级套杆的底板上,起升油缸的一端设置有活塞杆;第一传动机构,第一传动机构设置于升降桅杆的内部,本发明中,通过单油缸使多级桅杆完成同步起升和收缩,简化了传动系统,降低了生产成本,使桅杆升起时顺平无冲击,同时单油缸的动力源,大大简化了起升桅杆的维修和保养。
Mast lifting device for aerial work platform
一种高空作业平台桅杆起升装置
2024-07-12
Patent
Electronic Resource
Chinese
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |