发明名称 |
DIFFERENTIAL-MOVEMENT CHAIN MECHANISM FOR THE CONTROL OF A NUCLEAR REACTOR |
摘要 |
The mechanism has at least one carrier sprocket wheel (18-19) fixed on a horizontal shaft (15) mounted on the body of a grab (4) with pivoting fingers. An apparatus (14) for actuating the pivoting fingers connected to the shaft allows them to open and close to take up or, alternatively, release the absorbent unit. Drive chain wheels (25-26) allow the portions (20-21) of a chain supporting the carrier pulley (18-19) to be moved, either in synchronism to move the absorbent assembly or with a differential movement to actuate the pivoting fingers of the grab (4). A single differential pinion apparatus (31-32) allows the two kinds of movement to be carried out. The invention can be applied particularly to the control and emergency shutdown of pressurized water nuclear reactors. |
申请公布号 |
DE3066063(D1) |
申请公布日期 |
1984.02.09 |
申请号 |
DE19803066063 |
申请日期 |
1980.10.31 |
申请人 |
FRAMATOME |
发明人 |
MARTIN, JEAN;LAFOSSE, CLAUDE |
分类号 |
G21C7/14;(IPC1-7):G21C7/18 |
主分类号 |
G21C7/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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