Three-point long-stroke multi-stage trapezoidal lead screw heavy load lifting tool

Abstract

The invention discloses a three-point long-stroke multi-stage trapezoidal lead screw heavy load lifting tool. The three-point long-stroke multi-stage trapezoidal lead screw heavy load lifting tool comprises three heavy load long-stroke lifting multi-stage trapezoidal lead screws, a lifting tool foundation platform, a lifting work platform, three sets of motor drive assemblies, three sets of spherical hinges and three cross joint hinges. Each heavy load long-stroke lifting multi-stage trapezoidal lead screw is mounted on the lifting tool foundation platform through the corresponding motor driveassembly and spherical hinge. The lifting work platform is connected with the lower ends of the three heavy load long-stroke lifting multi-stage trapezoidal lead screws through the three joint hinges. The heavy load long-stroke lifting multi-stage trapezoidal lead screws are driven by the motor drive assemblies to achieve long-stroke telescopic lifting motion, the spherical hinges are connected with the heavy load long-stroke lifting multi-stage trapezoidal lead screws through the motor drive assemblies, and then axial loads of the lifting heavy load long-stroke lifting multi-stage trapezoidal lead screws are borne. The three-point long-stroke multi-stage trapezoidal lead screw heavy load lifting tool solves the problems of vertical narrow space heavy loads, load distribution and motion precision well.

Description

technical field [0001] The invention relates to the technical field of engineering machinery hoisting equipment automation, in particular to the application occasion of a high-precision heavy-duty spreader in a narrow space. Background technique [0002] In the field of long-travel hoisting, lifting and transshipment of special components in a narrow space, a spreader with a load of 3-200 tons is required, and the spreader is required to support lifting, pitching, and rollover movements during the lifting process, and the spreader is also required to have horizontal and vertical movement expansion. capacity, that is, to ensure the accuracy of the transfer and lifting movement, the transfer of large loads, and the flexibility and high reliability of the movement. At present, there is no very mature solution for this type of equipment, and the existing multi-point hoisting lifting equipment has low lifting accuracy. 1. The hoisting stability is also affected by the elasticity ...

AI Technical Summary

Problems solved by technology

[0002] In the field of long-travel hoisting, lifting and transshipment of special components in a narrow space, a spreader with a load of 3-200 tons is required, and the spreader is required to support lifting, pitching, and rollover movements during the lifting process, and the spreader is also required to have horizontal and vertical movement expansion. capacity, that is, to ensure the accuracy of the transfer and lifting movement, the transfer of large loads, and the flexibility and high reliability of the movement. At present, there is no very mature solution for this type of equipment, and the existing multi-point hoisting lifting equipment has low lifting accuracy. , The hoisting stability is also affected by the elasticity of the steel wire rope and the sideslip of the multi-turn and multi-layer winding steel rope. The hoist components also have the disadvantages of large installation area, low space utilization rate, and large equipment gross.

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