Process method for nuclear power station four-bearing shaft-sealing main pump centering block dimension configuration

A centering block and nuclear power plant technology, applied in the direction of manufacturing tools, grinding workpiece brackets, workpiece clamping devices, etc., can solve the problems of excessive vibration of the main pump, inaccurate centering block size, and uncertain centering block, etc. Achieve the effect of reducing assembly time, increasing precision and improving precision
CN109968239AActive Publication Date: 2019-07-05HARBIN ELECTRIC POWER EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HARBIN ELECTRIC POWER EQUIP
Publication Date
2019-07-05

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Abstract

The invention relates to a process method for nuclear power station four-bearing shaft-sealing main pump centering block dimension configuration. Eight tool keys and filler gauges are matched to carryout clearance measurement, so that the configured dimensions of centering blocks are determined. The dimensions of the eight centering blocks configured by the process method provided by the invention are accurate, and the positioned tool keys and the filler gauges at the corresponding positions have the same thickness and dimension requirements, so that the coaxiality of a bearing guide ring anda lower guiding bearing can be ensured, the problem that the lower guiding bearing and the bearing guide ring are not coaxial due to nonuniformity of the configured dimensions of the centering blocksis solved, the problem that the lower guiding bearing and the bearing guide ring cannot be assembled due to inaccurate configured dimensions of the centering blocks is solved, the production capacityand the production capacity of enterprises are greatly improved, and a domestic technical capacity of a nuclear main pump is increased.
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Description

[0001] Technical field:

[0002] The invention relates to a process method for preparing the size of a centering block of a four-bearing shaft-sealed main pump of a nuclear power plant.

[0003] Background technique:

[0004] The centering block of the lower guide bearing and the bearing guide ring of the nuclear power plant is the key component of the shaft seal main pump of the nuclear power plant. The process method for the size preparation of the centering block of the four-bearing shaft seal main pump of the nuclear power plant is very important for the normal operation of the shaft seal nuclear main pump and the manufacture of the main pump The localization of technology is particularly important. The size preparation of the centering block of the four-bearing shaft seal main pump of the nuclear power plant has always been a technical problem. The traditional process method is to install the bearing guide ring on the lower guide bearing, measure the keyway width of the b...

Claims

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