Stepless adjustment spreader

Abstract

The invention discloses a stepless regulation lifting appliance which comprises a lifting head connecting piece, a hollow shoulder beam, a regulating assembly and lifting hook assemblies, wherein the lifting head connecting piece comprises an intermediate bushing; a ring-shaped clamping groove is formed in the inner wall of the intermediate bushing; the hollow shoulder beam is sleeved with the intermediate bushing; a waist-shaped hole is formed in the pipe wall of the hollow shoulder beam in a run-through manner; the regulating assembly comprises a rotating screw, a driving nut and a connecting pin; the screw is rotationally mounted inside the hollow shoulder beam; the driving nut is mounted on the rotating screw; one end of the connecting pin passes through the waist-shaped hole and is fixedly connected with the driving nut; the other end of the connecting pin is propped against the interior of the ring-shaped clamping groove; the lifting hook assemblies are fixed at the two ends of the hollow shoulder beam. The lifting appliance can achieve stepless regulation on the gravity center, is suitable for complete machine hoisting under different configuration and can achieve mixed model production.

Description

technical field [0001] The invention relates to a mechanical tool, in particular to a stepless adjustment sling. Background technique [0002] The spreader is a commonly used device in the field of industrial production, especially in the field of diesel engine assembly. When the whole machine is transferred from the pallet assembly line to the painting suspension chain of the whole machine, the whole machine must be relatively flat when it is hoisted or put back on the pallet, otherwise it is easy to scratch oil pan. However, the center of gravity of the machine with different configurations does not coincide, and the height of the lifting lugs is also different. In the context of mixed-line production, it is required to change the line quickly. The general method is to customize the spreader for the model with the largest output. Hooks of different lengths are used to take care of other models, so a single spreader is not suitable for models with different configurations,...

AI Technical Summary

Problems solved by technology

However, the center of gravity of the machine with different configurations does not coincide, and the height of the lifting lugs is also different. In the context of mixed-line production, it is required to change the line quickly. The general method is to customize the spreader for the model with the largest output. Hooks of different lengths are used to take into account other models, so a single spreader is not suitable for models with different configurations, and the practicability of the spreader is poor

Images