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论述了一种用于高放射性场合监控远距离操作的拉力保护装置的设计,其可有效防止辐照靶件在出堆过程中被拉断,并能保证靶件置入到其辐照工位。装置由拉杆、重量传感器、遥控器、接收器及执行电路组成。在起吊重量超过正常值时,超重程度将反应到拉杆的行程距离上。其工作原理是在出现异常情况时,如辐照孔道中靶件卡住,由于装置受力远大于正常工作时所受力,造成弹簧压缩,拉杆向下,当弹簧受力达到我们设定的保护力时,即弹簧压缩行程达到设定的行程时,拉杆上撞击头撞击行程开关,使行程开关闭合,进而断开行车吊钩上升继电器信号和发射遥控信号,使吊钩停止上升和连通报警信号,确保靶件所受力远小于其强度,保证了靶件不被破坏。
A design of a tension protection device for monitoring long-distance operation in a high-radio environment is discussed, which can effectively prevent the irradiated target from being pulled off during the heap and ensure that the target is placed in the irradiation station . Device by the lever, weight sensor, remote control, receiver and the implementation of the circuit. When the lifting weight exceeds the normal value, the degree of overweight will react to the travel distance of the tie rod. The working principle is that in the case of abnormal circumstances, such as the target hole in the irradiation channel stuck, due to the device is far greater than the stress during normal work, causing the spring compression, rod down, when the spring force to reach our set Protective force, that is, when the spring compression stroke reaches the set stroke, the striker strikes the head impact stroke switch, so that the travel switch is closed, and then disconnect the driving hook rising relay signal and transmit the remote control signal, so that the hook stops rising and connecting to the alarm Signal, to ensure that the force exerted by the target is far less than its strength to ensure that the target is not damaged.