Lifting device

Abstract

The invention discloses a lifting device. The lifting device comprises a lifting frame and lifting chains, wherein one ends of the lifting chains are provided with lifting hooks, and the other ends of the lifting chains are connected with the lifting frame through a positioning regulating mechanism; the lifting device is characterized in that the lifting chains and the lifting frame are connected through the positioning regulating mechanism, a connecting position of the lifting chains and the lifting frame is regulated according to the actual requirement through the positioning regulating mechanism, a rotating semidiameter and a rotating center of each lifting chain are regulated according to the actual requirement, and a lifting requirement of a product with the large size is met; the lifting device is capable of meeting lifting requirements of multiple size products, the structure is simple, the manufacture is easy, the regulation is convenient, and the production operation efficiency is effectively improved.

Description

technical field [0001] The invention relates to hoisting workpieces in machinery (agricultural machinery, automobiles, steel) and other industries, in particular to a hoisting device for mechanical products whose lifting points need to be changed frequently. Background technique [0002] At present, the structure is similar to different mechanical products that require two lifting points to be hoisted. When hoisting, it is necessary to make a variety of special spreaders according to the position of the product's lifting points. The special spreader is not only expensive but also troublesome to replace, and it is not suitable for frequent product changes. pipeline operations. [0003] The applicant found that for the mechanical products that need to be hoisted at two lifting points, the effective length of the hoisting chain cannot be adjusted according to the size of the hoisted product in view of the current design structure of the hoisting device. The defect that it cann...

AI Technical Summary

Problems solved by technology

[0002] At present, the structure is similar to different mechanical products that require two lifting points to be hoisted. When hoisting, it is necessary to make a variety of special spreaders according to the position of the product's lifting points. The special spreader is not only expensive but also troublesome to replace, and it is not suitable for frequent product changes. pipeline job

[0003] The applicant found that for the mechanical products that need to be hoisted at two lifting points, the effective length of the hoisting chain cannot be adjusted according to the size of the hoisted product in view of the current design structure of the hoisting device. The defect that it cannot be changed arbitrarily; that is, the rotation radius and rotation center of the lifting chain are fixed values. For products with large changes in lifting size, only special lifting tools can be made to meet the lifting needs; not only the cost is high, but the replacement is more troublesome. Reduce production efficiency

Images