Superhigh load scissor-type lifting platform

Abstract

The invention provides a superhigh load scissor-type lifting platform comprising a top plate, a baseplate, three-arm support units and a central transmission mechanism. Each three-arm support unit comprises an articulated arm, a lead screw and a transmission mechanism, and the articulated arm is composed of a connecting rod and an elbowed bracket; the transmission mechanism comprises bevel gears and a hexagonal shell; the six bevel gears are clamped between coaxial hexagonal rings, and three bevel gears which are distributed at intervals are fixedly connected to the lead screws; the elbowed bracket is driven by the lead screw so that the lifting operation of the platform is achieved. The central transmission mechanism structure is the same as the transmission mechanism structure of the three-arm support unit, and the three bevel gears which are distributed at intervals are connected to the three three-arm support units through the lead screws; and another bevel gear is connected to anexternal power source. The both sides of each bevel gear are provided with thrust bearings, and the friction between the gears and the shell is reduced; and the extension and compression loads of thelead screws are born. The invention provides the lifting platform capable of bearing superhigh load, and the lifting platform has the advantages of easy operation, high stability and working efficiency, and large working area.

Description

technical field [0001] The invention relates to the technical field of mechanical lifting, in particular to a novel scissor lift platform with super large load. Background technique [0002] A lift platform is a special type of equipment commonly used for heavy-duty vertical lifting and height adjustment for industrial and military purposes. It can be used in medical lifting beds, patient wheelchairs, robot base plates, lifting vehicles, and also as a variable height platform for measuring equipment and orientation alignment devices. The scissor-based lifting platform has the characteristics of large folding ratio, compact structure, strong bearing capacity, self-locking, and large top plate. However, most of the existing scissor-type lifting devices are based on a single screw drive device, which requires a lot of force to drive the entire mechanism. Such a lifting platform structure is very unfavorable for manual operation or requires high-power motor control. [0003] T...

AI Technical Summary

Problems solved by technology

However, most of the existing scissor-type lifting devices are based on a single screw drive device, which requires a lot of force to drive the entire mechanism. Such a lifting platform structure is not conducive to manual operation or requires high-power motor control.

[0003] The three-arm lifting platform can be used for manual or electric operation, and has better stability and higher work efficiency. However, the carrying capacity of a few arms is limited and cannot meet the working needs of super-large loads. Consider using multiple Three-arm unit support lifting platform work

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