Brush ring hobbing and riveting machine for brush-type steam seals

Abstract

The invention discloses a brush ring hobbing and riveting machine for brush-type steam seals. The brush ring hobbing and riveting machine comprises a frame which is composed of a base, a left stand column, a right stand column and an upper crossbeam plate, 'n'-shaped sliders are slidably connected between the left stand column and the right stand column, an upper adjusting rod and a lower adjusting rod are connected at the tops of the sliders and are movably connected with the upper crossbeam plate, a transverse fixed shaft is arranged between the lower portions of the sliders, a hob seat and a hob are movably sleeved on the fixed shaft, a driving shaft is arranged below the fixed shaft, two ends of the driving shaft are rotatably connected to the left stand column and the right stand column, a limiting sleeve is fixedly sleeved on the driving shaft, and one end of the driving shaft is in transmission connection with a driving device. By the aid of the brush ring hobbing and riveting machine, a brush ring can be fixedly hobbed and riveted on a steam seal to form a brush-type steam seal, manual riveting is replaced by equipment processing, manpower is saved, efficiency is improved, and riveting is firm.

Description

technical field [0001] The invention relates to the field of steam seal production equipment, in particular to a brush type steam seal brush ring rolling riveting machine. Background technique [0002] In order to reduce the air leakage in the gaps of the steam turbine and ensure the normal and safe operation of the steam turbine, various steam seals are specially installed in the steam turbine. The entire steam seal ring is composed of multiple steam seal arc segments. Traditional common seals mainly include hard seals such as comb labyrinth seals and honeycomb seals. In order to adapt to the deformation and eccentric movement of the steam turbine rotor and prevent rotor wear caused by contact with the rotor, a sufficient gap must be left between the seal ring and the rotor. The gap, so this kind of sealing effect is not satisfactory. In recent years, more and more attention has been paid to the brush-type flexible steam seal. The brush-type steam seal is a brush ring comp...

AI Technical Summary

Problems solved by technology

Point riveting is not only time-consuming and labor-intensive, it is difficult to improve production efficiency, but also difficult to guarantee the quality, and the connection between the brush ring and the original steam seal is not stable.

Images