Straightening-ring locking device combining taper sleeve expansion and key transmission

Abstract

A straightening-ring locking device combining taper sleeve expansion and key transmission comprises a straightening roll, a straightening ring, an inner taper sleeve, an outer taper sleeve, a transmission key, a spline sleeve, a pull rod, a fixing nut, a hydraulic nut, a pressure-bearing nut, a lock nut and a safety nut. A cantilever shaft of the straightening roll is sleeved with the inner taper sleeve. The inner face of the conical face sleeve section of the inner taper sleeve is matched with the face of the conical face shaft section of the cantilever shaft of the straightening roll. The inner taper sleeve is sleeved with the outer taper sleeve. The conical face sleeve section of the outer taper sleeve is matched with the outer conical face of the conical face sleeve section of the inner taper sleeve. The straightening ring is installed outside the outer taper sleeve. The pull rod is fixed to the cantilever shaft of the straightening roll through the fixing nut. The pull rod is sleeved with the hydraulic nut. A front piston and a rear piston are arranged at the front end and the rear end of the hydraulic nut respectively. A spline sleeve installation groove is formed in the outer circumference of the hydraulic nut. The pressure-bearing nut is screwed on the pull rod through an internal threaded hole. The lock nut is screwed on an external thread of the pressure-bearing nut. The straightening-ring locking device combining taper sleeve expansion and key transmission has the beneficial effects that the straightening ring is installed and replaced conveniently and quickly, the wide straightening ring can be installed, and locking is safe and reliable.

Description

technical field [0001] The invention belongs to the field of cantilever type steel straightening machines, in particular to a straightening ring locking device of the cantilever type steel straightening machine. Background technique [0002] The section steel straightening machine is an important finishing equipment in the section steel production line. The straightening quality of the straightening machine determines the quality and yield of the section steel. The straightening ring is the working part on the straightening machine, and the corresponding straightening ring needs to be replaced for each type of steel to be straightened. Therefore, fast locking and replacement of the straightening ring is an important link to increase the working efficiency of the straightening machine. Especially in the manufacture of high-speed rail and high-speed locomotive main frame, it is urgent to meet the needs of rapid development. There are two types of straightening ring locking d...

AI Technical Summary

Problems solved by technology

There are two types of straightening ring locking devices in the prior art, which are the simple taper sleeve expansion locking device and the simple key transmission locking device. The deficiency of the prior art lies in: the simple taper sleeve expansion locking device The tightening device, due to the limitation of its cone angle, cannot meet the locking of wide specification straightening rings

The straightening ring locking device in the form of simple key transmission cannot meet the needs of quick replacement of straightening rings

Images