Shaft hole machining method for walking balance beam of crane

Abstract

The invention discloses a shaft hole machining method for a walking balance beam of a crane. The shaft hole machining method comprises the following steps that the walking balance beam is put on the ground; a middle shaft hole center line ground transect line, a left shaft hole center line ground transect line, a right shaft hole center line ground transect line and a transverse structure center line transect line are drawn on the ground; a middle shaft hole center point is determined through a theodolite; a left shaft hole center point and a right shaft hole center point are determined according to the middle shaft hole center point; a middle shaft hole is machined through a first boring rod, a left shaft hole is machined through a second boring rod, and a right shaft hole is machined through the second boring rod. According to the shaft hole machining method, the positions of the center points on the shaft hole end faces are determined through a total station, the shaft holes are machined through the boring rods of a small boring mill, in the machining process, the parallelism degrees of the boring rods at the shaft holes in the horizontal directions are detected through the total station, and therefore machining of the three parallel shaft holes of the walking balance beam of the crane is completed through cooperation of the boring rods of the small boring mill and the totalstation.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a method for processing shaft holes of a traveling balance beam of a crane. Background technique [0002] With the development of industrial technology and production needs, lifting equipment continues to develop in the direction of large-scale and super-large, especially with the rise and rapid development of the offshore industry, the dependence on large-scale lifting equipment such as large gantry cranes is increasing. However, the walking balance beam of a large crane has extremely large dimensions and has extremely high precision requirements for the parallelism of the axis of the shaft hole. The traditional processing method needs to rely on the overall CNC boring machine with a large stroke. The processing cost is high and the processing equipment resources are high. Rare, so the machining of the shaft hole of the crane walking balance beam has always been a difficult probl...

AI Technical Summary

Problems solved by technology

However, the walking balance beam of a large crane has extremely large dimensions and has extremely high precision requirements for the parallelism of the axis of the shaft hole. The traditional processing method needs to rely on the overall CNC boring machine with a large stroke. The processing cost is high and the processing equipment resources are high. Rare, so the processing of the shaft hole of the crane walking balance beam has always been a difficult problem

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