SU111506A1 - Device for fastening the rotor windings of turbogenerators - Google Patents

Description

For fastening the rotor windings of turbogenerators, apparatuses are used consisting of Aisyx gauge: shroud, made of expensive non-magnetic steel of austenp class, and centering - pz ordinary steel.

In the proposed device, 6aiad rings are made of n :, aluminum alloy, which provides significant savings in manufacturing rotors of turbo-generators.

For this purpose, the bandage is provided with a face outer centering sharpening, and the centering ring is made up of two annular disks, one of which serves to seal the ring, and the other covers this ring with a small gap.

The drawing shows a diagram of the proposed device.

The band ring / is manufactured, 13 is aluminum alloy and is fitted when assembling the rotor 2 of the turbo-heater with slight pressure on the inner disk 3 of the centering ring. The outer disk 4 of the centering ring covers with a small gap of 0.5-0.6 mm centering sharpening 5 retaining ring.

When the rotor of the turbogenerator rotates at a commanded speed, nat g between the retaining ring / n the inner disk 3 is selected, and the gap between the retaining ring / and the outer disk 4 becomes insignificant nat.

Thus, the retaining ring 1 is always centered and does not have tensile stresses from tension, which allows it to be made of less durable materials.

Subject invention

The device for crepe, 1prp of the rotor windings of the turbogenerators, consisting of a non-magnetic metal shroud and a steel centering ring, is about that. what. for the purpose of performing No. 111506 of a bandage ring of an aluminum alloy; - it has an outer centering sharpening on the end, and a centering ring is made up of two annular disks, the inner one of which has a tight ring planted with a slight tension, and an outer ring has a buttonhole. sharpening retaining ring with. a small gap.