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1.原设计两位置开关“前”←→“后”转换及“牵引”←→“制动”转换控制电磁阀线圈63Q、64H(或64Q、63H)及63QH、64QH(63Z、64Z)控制回路中的TKO位联锁,在两位置开关本身正常的情况下是符合逻辑的,能保证两位置开关正常运用。只有在调压开关为0位时的无电流情况下才能转换,以避堍开关烧损。当由于某种原因导致开关移位时,其相应辅助联锁打开,引起205继电器释放,调压开关自动退位,这正是原电路设计的逻辑思想,意在保护两位置开关。 2.兰西机务段陇西分段孙玉中同志针对上述问题,提出在TKO联锁两湍分别并联63Q、64H、63QH等自锁联锁接点的
1. The original design of the two position switch “front” ← → “after” conversion and “traction” ← → “brake” switch control solenoid valve coil 63Q, 64H (or 64Q, 63H) and 63QH, 64QH (63Z, 64Z) The TKO bit interlock in the loop is logical when the two position switch itself is normal, which can ensure the normal operation of the two position switch. Only in the pressure switch is 0 when the current-free case can be converted in order to avoid burning switch. When the switch is shifted for some reason, the corresponding auxiliary interlock opens, causing the 205 relay to release, and the pressure switch automatically withdraws. This is the logical idea of the original circuit design, which is intended to protect the two position switches. 2. Lanxi locomotive section Longxi sub-paragraph Sun Yuzhong comrades in view of the above problems, proposed TKO interlocking two turbulent parallel 63Q, 64H, 63QH and other self-locking interlocking contacts