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我段从1971年起,发现QJY—2型调速器伺服马达体磨耗非常严重,曾一度认为保养不良,强调乘务员要及时换油。但仍然偏磨,尤其在与扭转轴逆时针45度方向的缸壁上偏磨非常厉害。测量了五个伺服马达体,使用期仅2～5轮修期,可是磨耗量竟达0.1～0.27毫米,使伺服马达体均达报废程度。经过多次观察、分析和讨论,我们认为QJY—2型调速器伺服马达的偏磨是设计上的缺陷。伺服马达杆中心线与扭转轴中心线距离32.5+0.2毫米,供油杆连接在扭转轴的一侧
I paragraph from 1971 and found that QJY-2 governor servo motor body wear is very serious, once considered bad maintenance, emphasizing the flight attendants to change oil in time. But still partial wear, especially in the anti-clockwise 45 degrees with the torsion cylinder wall eccentric wear very powerful. Five servomotor bodies were measured. The service life was only 2 to 5 rounds of repairs, but the amount of wear was as high as 0.1 to 0.27 mm, so that the volume of the servomotor reached the scrapped level. After many observations, analyzes and discussions, we believe that the partial wear of QJY-2 governor servo motor is a design flaw. Servo motor rod centerline and the torsion shaft centerline distance 32.5 +0.2 mm, oil rod connected to the side of the torsion shaft