新型剪叉式链条升降机设计

Design of a New Type of Shear Fork Type Chain Hoist

对机械工业上普遍采用的液压、丝杆、胶带为载体的剪叉式顶升机进行改进设计,充分利用链条的刚柔特性,将链条设计成只能一方向转动,另一方向为刚性。通过链条的传动,利用链条特殊结构,可将水平的链条转换成竖直向顶升,也可将原本竖直的链条转换成水平移动,来达到平台升降的目的。根据链条的这一特性,设计一种以顶升链条为载体的剪叉式链条升降机,其最大承载为20 kN,最大行程为2 000 mm,升降最大速度为15 m/min。

The improvement design for commonly used in industrial machinery hydraulic, a screw rod, a tape carrier shear fork type top up machine is carried out, making chain, the chain is designed to be always rotate, another is always cial structure of the chain, the horizontal chain is transformed into transformed into horizontal movement, to achieve the purpose of of the chain, a shear fork chain hoist with the top up ascending full use of rigid and flexible characteristic of a rigid, through chain drive, using the spe- vertical lift, also originally vertical chain is lifting platform. According to the characteristics chain as scissor is designed, and its maximum load is 20 kN, maximum stroke is 2000 mm, the maximum lifting speed is 15 m/min.