Electro-hydraulic spiral servo drive shearing fork type heavy lifting platform

Abstract

The invention discloses an electro-hydraulic spiral servo drive shearing fork type heavy lifting platform which comprises a chassis, an electro-hydraulic spiral servo drive system, a working table, a shearing fork type structure, an upper guide rail and a lower guide rail. The shearing fork type heavy lifting platform is a plane single degree-of-freedom mechanism and is driven and controlled by the electro-hydraulic spiral servo drive system mounted on the chassis, so that center of gravity of the lifting platform is effectively lowered, and intelligent control is facilitated with introduction of the servo drive system; the electro-hydraulic spiral servo drive system is a four-lead-screw driving mechanism and is designed based on the overdrive method of intelligent control and the D'Alembert's principle, so that the problems about unbalance loading, unstability and synchronization caused by errors of processing and assembling of the shearing fork type heavy lifting platform are effectively solved, the stability and reliability are greatly improved, and the carrying capacity is effectively improved; the shearing fork type structure is high in reconfigurable capacity and structural strength; and the lifting platform is particularly suitable for occasions including digitization workshops, intelligent logistics warehouses and the like for vertically conveying heavy cargos.

Description

technical field [0001] The invention relates to the field of scissor-type lifting platforms, in particular to an electro-hydraulic spiral servo-driven scissor-type heavy-duty lifting platform. Background technique [0002] The scissor lift table is a kind of lifting equipment that can not only transport people vertically but also can carry out vertical transport in the material conveying system such as workshop or warehouse. According to the market demand, the working table of the scissor lift table can also be installed with various Class plane conveying equipment to meet the conveying requirements of different heights of the conveying line. Scissor lifts can generally be divided into fixed lifts and mobile lifts. Existing scissor lifts have been widely used in many fields, but many problems have been exposed during use. On the one hand, most of the existing scissor lifts use the hydraulic system as power, and the hydraulic cylinder installed on the scissor mechanism drive...

AI Technical Summary

Problems solved by technology

On the one hand, most of the existing scissor lifts use the hydraulic system as power, and the hydraulic cylinder installed on the scissor mechanism drives the lifting platform to take off and land. Although the hydraulic system has an excellent overload protection function, the hydraulic system has the ability to Problems such as high energy consumption, low control precision, and high maintenance technical requirements have hindered the energy-saving, intelligent, and precise development of scissor lifts, making it difficult for existing scissor lifts to be used in modern digital production lines; another On the one hand, the existing scissor lift tables mostly use a single set of plane scissor mechanism, and a single power source is mostly used as the power source, resulting in poor structural rigidity, poor stability of the workbench, small space, and poor dynamic performance, making it difficult to meet large volume , High-load material transportation work

Furthermore, in order to improve the carrying capacity and intelligent level of the existing scissor lift table, when multiple sets of servo motors are used to drive the scissor lift table, the scissor lift table will cause deviation due to errors such as processing and assembly. Load, instability, difficult synchronization and other problems,

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