公开(公告)号：US3902963A

公开(公告)日：1975-09-02

申请号：US51670

申请日：1970-01-05

Applicant: COMBUSTION ENG

Inventor： BERTONE LOUIS A ,  BEHMKE PETER F

IPC: G21C7/12 ,  G21C7/08

CPC classification number: G21C7/12 ,  G21Y2002/50 ,  G21Y2004/30 ,  Y02E30/39

Abstract: A nuclear reactor control rod anti-ejection lock for use with magnetic jacking type control rod drives and having a spring pressed pawl which ratchets to allow insertion of the control rod but prevents ejection or withdrawal unless the control rod drive is in an upper position or the latch mechanism of the drive is in latched position. The drive comprises two axially spaced axially movable drive members around the rod and magnets selectively alternately moving the members in two opposite directions along or with the rod. Each member carries a latch or gripper and an axially movable sleeve, selectively magnetically operated, to operate the latch to connect or disconnect the rod and respective drive member. A push rod connects each sleeve and the pawl and disables the pawl when either sleeve is in position to latch the control rod and a drive member. The stroke of the drive member may be made less than the stroke of the sleeve and a lost motion incorporated in the push rod connection so that the drive member will not disable the pawl.

Abstract translation: 一种核反应堆控制杆防弹锁，用于与磁顶杆式控制杆驱动器一起使用，并具有弹簧压爪，其棘爪以允许控制杆插入，但是防止喷射或取出，除非控制杆驱动器处于上部位置或 驱动器的闩锁机构处于锁定位置。 驱动器包括围绕杆的两个轴向间隔开的轴向移动的驱动构件，并且磁体选择性地沿着或与杆相反地沿两个相反方向移动构件。 每个构件都带有一个闩锁或夹持器和一个可选择性地磁力操作的可轴向移动的套筒，以操作闩锁以连接或断开杆和相应的驱动构件。 推杆连接每个套筒和棘爪，并且当两个套筒处于适当位置以锁定控制杆和驱动构件时，可以使棘爪不动。 可以使驱动构件的行程小于套筒的行程和装在推杆连接件中的迷失动作，使得驱动构件不会禁用棘爪。

公开(公告)号：US3626493A

公开(公告)日：1971-12-07

申请号：US3626493D

申请日：1969-06-18

Applicant: COMBUSTION ENG

Inventor： BEHMKE PETER F

IPC: G21C7/14 ,  H02K7/065 ,  H02K41/00 ,  B65H17/36

CPC classification number: H02K7/065 ,  G21C7/14 ,  G21Y2002/201 ,  G21Y2002/204 ,  G21Y2004/30 ,  Y02E30/39

Abstract: A linear motion device of the type in which magnetic coils surround a shaft lifting and lowering slugs which contain gripper elements which in turn may be selectively engaged and disengaged from the shaft. An upper coil operates to lift an upper slug while an upper central coil operates to effect engagement between the shaft and the upper slug. A lower coil operates to pull down a lower slug while a lower central coil operates to effect engagement between the lower slug and the shaft. The single central coil operates to simultaneously pull down the upper slug and lift the lower slug whereby two lifting steps are accomplished in each cycle of the lifting device.