Nuclear power station shaft seal main pump shaft seal stationary ring machining process and nuclear power station shaft seal main pump shaft seal stationary ring machining process equipment

Abstract

The invention relates to a nuclear power station shaft seal main pump shaft seal stationary ring machining process and nuclear power station shaft seal main pump shaft seal stationary ring machining process equipment. A grinding stationary ring outer circle plane tire (2) is attracted to an electromagnetic disc (1) through magnetic force, the grinding stationary ring outer circle plane tire (2) is fixed to the electromagnetic disc (1) through a first bolt (10), a stationary ring (3) is installed on the grinding stationary ring outer circle plane tire (2), and a second bolt (9) is used for jacking a first cushion block (8) to tightly support an inner hole of the stationary ring (3). The electromagnetic disc (1) is adopted for clamping the stationary ring (3) through a tool (2), and the equipment has the advantages that the electromagnetic disc attracts the tool through electromagnetic force, the gapless effect can be achieved, stability and reliability are achieved, repeated positioning is good, the tool is fixed to the electromagnetic disc through the bolts, the safety protection effect is achieved, and once the electromagnetic disc fails due to faults, tool workpieces cannot fly out to cause accidents. The nuclear power station shaft seal main pump shaft seal stationary ring machining process equipment can achieve the gapless effect, is stable and reliable, is good in repeated positioning, and can obtain very high machining positioning precision.

Description

Technical field: [0001] The invention relates to a processing technology of a shaft seal static ring of a main pump shaft of a nuclear power plant and the technology equipment thereof. Background technique: [0002] Shaft seal is the core technology of the shaft seal main pump. The static ring is the core component of the shaft seal. The processing precision of the static ring is high and difficult. The static ring is a special material containing tungsten, which has high hardness, high wear resistance and brittleness. , cannot be turned. Due to the special mechanical properties of the tungsten ring raw material, it can only be ground during processing, and it is easy to break and slag. It is necessary to use a grinding wheel and choose the grinding parameters reasonably. Therefore, it is urgent to develop a special processing technology and its craft equipment. Invention content: [0003] The purpose of the invention is to disclose a processing technology for the static ...

AI Technical Summary

Problems solved by technology

[0002] Shaft seal is the core technology of the shaft seal main pump. The static ring is the core component of the shaft seal. The processing precision of the static ring is high and difficult. The static ring is a special material containing tungsten, which has high hardness, high wear resistance and brittleness. , cannot be turned. Due to the special mechanical properties of the tungsten ring raw material, it can only be ground during processing, and it is easy to break and slag. It is necessary to use a grinding wheel and choose the grinding parameters reasonably. Therefore, it is urgent to develop a special processing technology and its Craft equipment

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