The invention discloses a single-rotor unmanned helicopter tail transmission shaft supporting mechanism which comprises a supporting mechanism body, the supporting mechanism body is composed of a shaft sleeve, a self-lubricating bearing, a shock absorption pad, a fixing base and a plurality of connecting parts, the shaft sleeve is fixed to a transmission shaft, and the shaft sleeve is used for connecting the self-lubricating bearing and the transmission shaft. The self-lubricating bearing is directly installed on the shaft sleeve, the shock absorption pad is arranged on an outer ring of the self-lubricating bearing in a sleeving mode, the fixing base is arranged at the top end of the supporting mechanism body, a baffle is installed on the right side of the shock absorption pad, and a checkring is arranged on the upper right side of the baffle. According to the single-rotor unmanned helicopter tail transmission shaft supporting mechanism, the self-lubricating bearing is selected and used, the service life is long, the shock absorption pad is added, the vibration frequency of a tail pipe is reduced, so that the overall vibration frequency of a helicopter is reduced, the adaptabilityof the helicopter and flight control equipment is improved, the overall reliability of the helicopter is improved, a shock absorption mechanism is easy to assemble and has few parts, and the mechanism mass is reduced.
本发明公开了一种单旋翼无人直升机尾传动轴支撑机构,包括支撑机构主体,所述支撑机构主体由轴套、自润滑轴承、减震垫、固定座及若干连接零件组成,所述轴套固定在传动轴上,且该轴套用于连接自润滑轴承与传动轴,所述自润滑轴承直接安装在轴套上,减震垫套在自润滑轴承的外圈上,所述支撑机构主体的顶端设置有固定座,所述减震垫的右侧安装有挡板,且挡板的右上侧设置有挡圈。该一种单旋翼无人直升机尾传动轴支撑机构,选用自润滑轴承,使用寿命长,增加了减震垫,降低尾管的振动频率,从而降低飞机整体的振动频率,提高飞机与飞行控制设备的适配性,提高飞机整体可靠性,该减震机构装配简单,零部件少,降低机构质量。
Single-rotor unmanned helicopter tail transmission shaft supporting mechanism
一种单旋翼无人直升机尾传动轴支撑机构
2021-03-30
Patent
Electronic Resource
Chinese
Tail rotor pitch changing mechanism of large unmanned helicopter
European Patent Office | 2024
|