摘 要
舰载卫星TV天线座是天线的支撑与旋转的机械装置，其功能是在舰艇摇摆条件下，补偿舰体运动引起的纵、横摇摆角，使天线保持水平，并以恒定转速驱动天线旋转，完成舷角机构扫描，并输出舷角信号。天线座支架设在船甲板上对其强度、刚度有较高的要求，同时要求耐冲击、振动，而且谐振频率要满足伺服系统带宽的需要。在船上设置卫星TV天线座帮助那些长期需要在船上工作的人以及出海游玩的人可以随时随地的收看到各种电视节目，解决长期在船上无法收看电视而带来的苦闷，让人们能有好的心情。并且还可以通过舰载卫星TV天线及时了解海上的天气情况，避免一些恶虐的天气。
本课题主要是天线座结构设计，主要是设计舰载卫星TV天线座的俯仰旋转运动以及天线的方位旋转运动，同时也要实现对于整体结构的设计。在对舰载卫星TV天线座结构的设计中，首先是传动方案的设计和方位轴的设计，其次是电机选型和结构设计等。在设计过程中要对所设计的零件用弯曲疲劳强度进行检验和校核，以保证设计的合理性。并且要用AutoCAD画设计出的天线座的总装图和部分零件图，标注相关的尺寸，写好明细栏，方便别人读图、理解图。
关键字：天线座，支架，设计，校核，总装图
ABSTERACT
Carrier-based satellite TV antenna is supported with rotating machinery, its function is under the condition of ship sway, longitudinal and lateral swing Angle compensation hull movement, keep the antenna level, and rotate at a constant speed drive antenna, complete scanning Angle mechanism, Angle and output signals. Antenna mounting bracket in the deck to have higher demand to the strength, stiffness, and resistance to shock, vibration, and the resonant frequency to meet the needs of the servo system bandwidth. Set up on the ship satellite TV antenna base to help those who need working on the boats and went to sea to play for a long time people can watch all kinds of TV programs, anywhere, anytime to solve in the ship can’t watch TV for a long time of anguish, let people can have a good mood. And can also through the shipborne satellite TV antenna in a timely manner to understand the weather conditions at sea, avoid some of the evil of the weather.
This topic mainly antenna structure design, mainly is the design of shipborne satellite TV antenna seat pitch rotary motion and antenna azimuth rotation movement, as well as implementation to the design of the whole structure. At the structure of ship-borne satellite TV antenna design, the first is the transmission scheme design and the design of the bearing axis, followed by the motor selection and structure design, etc. In the design process to the bending fatigue strength for the designed parts inspection and check, to ensure the rationality of the design. And to use AutoCAD drawing of the design of the antenna assembly drawing and parts diagram, indicate the size of the relevant, write a detailed bar, convenient others map reading and understand the figure.
KEY WORDS: antenna, support, design, proofread, general assembly drawing
目录
第四章 全文总结 22
