Development of a horizontally driven multistage scissor lift platform

This paper aims to address the shortcomings of vertical drive multi-stage scissor forks, such as their high space occupation rate, poor internal passability when lowering, weak structural rigidity, and low overturning resistance after lifting. It proposes the design of a ball screw, horizontally-driven, multi-stage scissor fork lifting platform that offers strong internal passability, a large stroke, a high load capacity, and a large lateral overturning force. The design considers the stability of movement and the feasibility of engineering. Considering the platform's structural characteristics and driving mode, the maximum nut thrust is calculated using the principle of virtual work. With this thrust and the force conditions as the calculation boundaries, mechanical simulation analysis of the platform's key parts under limit working conditions and test verification of the entire machine are performed. The simulation and test results show that the developed horizontally driven multi-stage scissor lift platform has a lifting stroke of 4 m and can withstand at least 3 t of horizontal lateral tilting force and 5.6 t of loaded weight in the horizontal direction. This has some practical significance for the engineering application of similar products in the field of dynamics and control of subsequent mechanical systems, as well as optimising low-cost research.