Single helical tooth conical surface elastic vibration reduction thrust ring and gear transmission structure with same

Abstract

The invention belongs to the technical field of thrust rings, and particularly relates to a single helical tooth conical surface elastic vibration reduction thrust ring and a gear transmission structure with the thrust ring. A thrust ring fixing structure is modified into a slidable structure, a sliding pair is additionally arranged on the matching surface of the thrust ring and the shaft, meanwhile, the structural rigidity of the thrust ring is improved, a belleville spring is additionally arranged at the tail end of the thrust ring, and the belleville spring is fixed to the rotating shaft through the check ring, so that the preload of the belleville spring is guaranteed. The large gear and the small gear are meshed to generate axial thrust, a dynamic pressure oil film is generated at the conical surface structure to extrude the thrust ring structure, the sliding pair slides, and the belleville spring is extruded to generate micro-motion deformation, so that axial meshing frequency vibration of the helical tooth thrust cone structure is reduced, and the thrust ring conical surface matching problem caused by machining, assembling and the like is compensated. The single helical tooth conical surface elastic vibration reduction thrust ring is high in stress adjusting capacity, simple in structure, convenient to machine, install and maintain and capable of working reliably for a long time.

Description

technical field [0001] The invention belongs to the technical field of thrust rings, and in particular relates to a single helical conical surface elastic damping thrust ring and a gear transmission structure with the thrust ring. Background technique [0002] The thrust ring balancing device was first applied to the single helical gear gearboxes of steam turbines and compressors. Since the power loss of the thrust bearing increases in a square relationship with the rotational speed when the parameters remain unchanged, the traditional thrust bearing The structure is prone to reach its limit, so the thrust ring device has a unique advantage in this case. In terms of application, the speed-increasing gearboxes of gear compressors at home and abroad usually use a thrust ring device to balance the axial force generated by the external impeller and the internal single helical gear, but in some special occasions, the vibration index of the gearbox requires strict requirements. I...

AI Technical Summary

Problems solved by technology

In addition, the currently used thrust ring structures are all rigidly installed, and the machining accuracy of the conical structure of the thrust ring is high, and the minimum oil film thickness is only about 0.02mm during operation. If the assembly error is large, the oil film cannot be formed, which may easily cause damage to the thrust cone structure

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