High-temperature gas cooled reactor eddy current speed limiter assembly method

A technology of high-temperature gas-cooled reactors and assembly methods, which is applied in the direction of electrical components, electromechanical devices, and manufacturing motor generators, etc., and can solve problems such as permanent magnet attraction, component scrapping, and installation methods that cannot meet assembly requirements

Active Publication Date: 2019-09-06
上海第一机床厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there are 12 eddy current governor permanent magnets (Nd-Fe-B) in the eddy current governor, the interaction force of a pair of permanent magnets (Nd-Fe-B) is about 980 ~ 1000N, during the installation process of the eddy current governor Among them, due to the interaction of 6 pairs of permanent magnets, a maximum force of about 6000N can be generated, so the general installation method cannot meet the assembly requirements
Due to the uncontrollability during the installation process, the permanent magnets will attract each other, so that the components will be scrapped. At present, there is no effective installation method to install the eddy current speed limiter conveniently, efficiently and safely.

Method used

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  • High-temperature gas cooled reactor eddy current speed limiter assembly method
  • High-temperature gas cooled reactor eddy current speed limiter assembly method
  • High-temperature gas cooled reactor eddy current speed limiter assembly method

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Embodiment Construction

[0038] Such as Figure 1-10 As shown, the assembly method of the eddy current governor of the high temperature gas-cooled reactor, the eddy current governor on it includes the damping disc 1, the connecting flange 7, the end cover, the permanent magnet 15 and the bearing cover 20, and the keyway of the damping disc 1 is set Flat key 2, shaft sleeve 4 on shaft 3 outside damping disc 1, outer bearing 6 on shaft sleeve 4, inner bearing 5 on shaft 3 inside damping disc 1, connecting flange 7 on damping disc 1 , and set end caps at both ends of the connecting flange 7, the end caps include an inner end cap 10 and an outer end cap 11, and the inner end of the connecting flange 7 is provided with a positioning hole 8 and a fixing hole 9 corresponding to the inner end cap 10, and the connection The outer end of the flange 7 is provided with a positioning hole 8 and a fixing hole 9 corresponding to the outer end cover 11. The positioning hole 8 and the fixing hole 9 are respectively us...

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Abstract

The invention provides a high-temperature gas cooled reactor eddy current speed limiter assembly method. After permanent magnets are put into wrapping housings respectively, the wrapping housings arehorizontally pushed from the end cover edge to an installation area; key grooves in the wrapping housings and bosses of separator blocks are arranged correspondingly to make the permanent magnets positioned more accurately and fixed more stably, thereby solving the problems of permanent magnet installation position deviation and impossibility of installation due to mutual attraction; a constant force is applied to an end cover to keep the center of the end cover and the center of a damping disc being assembled on the same axis; and by setting a high-thickness-precision end cover adjustment pad, the distance between the permanent magnet and the damping disc can be controlled better, and the cases of part scrapping due to collision between the permanent magnets and other parts can be avoided.

Description

technical field [0001] The invention relates to a high-temperature gas-cooled reactor control rod eddy current governor, in particular to an assembly method of the eddy current governor. Background technique [0002] The vortex speed limiter is an important part of the high temperature gas-cooled reactor. In order to limit the speed of accidental rod drop, meet the needs of the ring chain mechanism, and reduce the impact of free falling rods on the driving mechanism, to ensure that the ring chain does not occur due to accidental rod drop Breaking, the highest accidental rod falling speed after the speed limit of the eddy current speed limiter does not exceed 0.5m / s. Since there are 12 eddy current governor permanent magnets (Nd-Fe-B) in the eddy current governor, the interaction force of a pair of permanent magnets (Nd-Fe-B) is about 980 ~ 1000N, during the installation process of the eddy current governor Among them, due to the interaction of 6 pairs of permanent magnets, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/00
CPCH02K15/00
Inventor 王龙强薛松戚丹鸿米大为刘德明林培青唐张慧章海峻
Owner 上海第一机床厂有限公司
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