Pivot fixed multi-face constrained scissor-type lifting mechanism

Abstract

The invention belongs to the field of lifting equipment, and in particular relates to a pivot fixed multi-face constrained scissor-type lifting mechanism. Three groups of scissor-type trusses are vertical to a base; the bottom ends of the three groups of scissor-type trusses are connected with three epsilon-type connecting pieces which are fixed on the base in a regular triangle manner respectively so as to form rotation pairs, and the top ends of the three groups of scissor-type trusses are connected with three epsilon-type connecting pieces which are fixed on the lower plane of a supportingplatform in the regular triangle manner respectively so as to form rotation pairs; the three groups of scissor-type trusses are in regularly triangular prism arrangement between the supporting platform and the base; an angle between the plane on which each group of scissor-type truss is placed and the plane on which the adjacent scissor-type truss is placed is 60 degrees; among the three groups of scissor-type trusses, central hinging points of crossed connecting rods of scissor layers are connected with the corresponding peaks of the regularly triangular connecting pieces so as to form rotation pairs; and a driving device supports the regularly triangular connecting piece of the first scissor layer on the base so as to drive the whole lifting mechanism to lift. The pivot fixed multi-faceconstrained scissor-type lifting mechanism has a stable structure and high rigidity, and is applicable to environments having requirements such as large loading capacity, working height and the like which cannot be met by general lifting equipment.

Description

technical field [0001] The invention belongs to the field of lifting equipment, in particular to a fixed fulcrum multi-face over-constrained scissor-type lifting mechanism. Background technique [0002] A lifting platform is a lifting machine that transports people or objects vertically. In addition to transporting goods at different heights, lifting platforms are widely used in high-altitude installation, maintenance and other operations. Its free lifting characteristics have been widely used in municipal maintenance, cargo transportation in docks and logistics centers, and building decoration. It has light weight, Self-propelled, electric start, self-supporting legs, simple operation, large working area and other advantages. [0003] According to the different lifting principles of the lifting mechanism, the lifting platform can be divided into scissor lifts, telescopic lifts, telescopic lifts, telescopic arm lifts, folding arm lifts, etc.; according to the different movi...

AI Technical Summary

Problems solved by technology

[0004] Now the common scissor lift mechanism is generally two sets of fork rods in parallel, which has the following disadvantages: since the two groups of fork rods are not symmetrical in parallel, when the lifting platform is raised to a high place and receives a side force It is easy to cause the lifting platform to shake due to insufficient rigidity; the continuous vibration increases the instability of the structure and even topples over, so its structural rigidity is poor

In addition, when the fork lever supporting the platform in the lifting mechanism is fixed at one end and slides at the other end, when the center of gravity of the heavy object carried remains unchanged, it is easy to cause a large change in the force of the mechanism when the lifting platform is raised and lowered, thereby increasing instability. factors, causing work inconvenience and psychological pressure to the top staff, and easily leading to dangerous accidents

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