Spent fuel assembly horizontal transportation structure in radiation environment

CN118907847BActive Publication Date: 2026-08-28CHINA NAT HEAVY MACHINERY RES INSTCO
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Patent Information

Application Number
CN202411242577.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-05
Publication Date
2026-08-28
Estimated Expiration
2044-09-05

AI Technical Summary

Technical Problem

这种结构随着链条滚轴的磨损送进精度会大幅下降;随着塑胶气管的老化,容易发生爆管及管子卡阻事故;同时由于链条滚轴由导槽定位,无法在有间断的输送路径上输送

Benefits of technology

[0027](1)本发明所涉及的辐射环境下的乏燃料组件水平输送结构,其伺服电机直接通过联轴器驱动链轮链条,整体为无间隙驱动;同时链条送进过程中,刚性链本身由于每个链板的肩部依次顶紧,整个链条几乎不存在随机误差,故实现高精度的送进的目的。

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Abstract

The application provides a high-precision cross-space conveying mechanism for components in a radiation environment, which is composed of a clamp driving mechanism (1), a rigid chain mechanism (2), a clamp mechanism (3) and a base material tank (4). The upper left end of the rigid chain mechanism (2) is connected with the clamp driving mechanism (1), and the lower right end of the rigid chain mechanism (2) is connected with the base material tank (4). The clamp driving mechanism (1) is connected with the clamp mechanism (3). The servo motor directly drives the chain wheel chain through the shaft coupling in the application, and the whole is gapless driving. At the same time, the whole chain almost has no random error, and the purpose of high-precision feeding is achieved. The clamp driving mechanism of the application leads the power of the clamping mechanism to the non-moving part through the radiation-resistant brake line, which is very convenient for use and maintenance in the nuclear environment. The guiding rigid chain and the clamping base slide on the T-shaped guide rail, and the horizontal cross-space component conveying can still be carried out under the intermittent working condition of the material tank.
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Citation Information

Patent Citations

  • Novel high-precision material clamping device

    CN104526604A

  • Numerically-controlled sawing and punching integrated production line for aluminum frameworks

    CN106392650A

  • High-precision rigid chain of mobile nuclear reactor fuel transfer device

    CN217740186U