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针对胶片式航空遥感器存储胶片的要求,设计了一种大载片量、密封胶片盒。该胶片盒能够载片300m,并实现胶片盒独立可拆卸、供收胶片盒可互换。在片盒座和片盒盖之间采用止口密封,并在止口中安放橡胶条,增加密封安全系数,并防止胶片潮湿。片盒密封输出机构采用迷宫式设计,利用两个片滚对胶片进行导向,并起到密封作用。文中计算出了满足载片量要求的片轴尺寸,给出了密封结构示意图,并计算出工作过程中运动特性和胶片的受力情况。
In response to the requirement of film-type airborne remote sensor storage film, a large film quantity and sealed film box is designed. The film cassette capable of carrying 300m, and to achieve independent detachable film cassettes for film cassettes interchangeable. Use a retainer seal between the cassette holder and the cassette cover and place a rubber strip in the retainer to increase the seal safety factor and prevent the film from dampness. Cassette seal output mechanism using a labyrinth design, the use of two films roll-oriented film, and play a sealing role. The paper calculates the size of the spool which meets the requirements of the loading capacity, gives the schematic diagram of the sealing structure, and calculates the movement characteristics and the force of the film in the working process.