一、概述当雷达天线座座架的俯仰结构系统作旋转运动时,有时会出现因某些意外情况(如限位开关失灵、制动器发生故障而不起制动作用等),导致天线俯仰结构撞击到座架上而造成重大事故。为了防止这一情况的发生,通常在天线座架结构中都设置有能起安全保护作用的缓冲器,由于在整个天线控保系统中缓冲器是作为最后一道安全保护装置,因此对缓冲器的要求除具有缓冲能力外,还须具备一定的减震能力。在雷达天线座中,通常采用的缓冲器有螺旋弹簧式和液压式两种。螺旋弹簧式缓冲器在 I. Overview When the pitch structure system of the radar antenna pedestal makes a rotational movement, sometimes due to some unexpected conditions (such as the limit switch failure, the brake failure can not afford to brake, etc.), resulting in antenna pitch structure impact To seat on the rack and cause a major accident. In order to prevent this from happening, the antenna mount structure is usually provided with a safety-capable buffer. Since the buffer is used as the last security guard throughout the antenna protection system, the buffer In addition to having a buffer capacity requirements, but also have some damping capacity. In the radar antenna base, the commonly used buffer coil spring and hydraulic two. Spiral spring buffer at