一、高压交换闸故障该机高压交换闸采取横杆活塞交换接点式,固定接点为弹簧压点,高压交换闸继电器用两个螺丝固定在高压发生器支架上。因固定间隙窄,又是活螺母,很难用普通螺丝刀固定紧。加上开关机器、上下管球交换它都动作,受振频繁,久而久之,固定螺丝松动。这样活塞杆移动不灵活,继电器衔铁吸不全,磁耗增大,继电器嗡声也增大(其声音大小视磁阻大小而定),使X线管阴极接点 First, the high-pressure exchange gate fault This machine high-pressure exchange gate to take the cross-bar piston exchange contact type, the fixed contact is the spring pressure point, high pressure exchange gate relay with two screws fixed on the high voltage generator bracket. Because the fixed gap is narrow and it is a live nut, it is difficult to fix it with an ordinary screwdriver. In addition to the switch machine, the upper and lower tube exchange it all move, and it is frequently subjected to vibration. Over time, the fixing screws are loosened. In this way, the piston rod moves inflexibly, the relay armature is incompletely suctioned, the magnetic consumption increases, and the relay squeak increases (the sound size depends on the size of the magnetic resistance), making the X-ray tube cathode contact