A front landing wheel anti-swing mechanism comprises a front wheel connecting frame and a supporting leg. A shaft sleeve is fixed on the front wheel connecting frame. The rotating shaft of the supporting leg is installed in the shaft sleeve. The rotating shaft is installed in the shaft sleeve through the upper bearing and the lower bearing, and the upper bearing and the lower bearing are successively sleeved with compression between the rotating shaft. The compression spring is compressed between the upper bearing and the flexible damping sleeve. The outer and inner walls of the flexible damping sleeve are respectively in contact with the shaft sleeve and the rotating shaft. The outer and inner walls of the flexible damping sleeve are coated with damping esters respectively. By squeezing the flexible damping sleeve with compression spring, the motion damping is produced between the inner hole of the front wheel connecting frame and the outer diameter of the rotating shaft of the supporting leg, and the wear gap can be compensated. When the tire shimmies, the tire and the front wheel connecting frame rotate around the axis of the pivot, and the elastic damping effect of the flexible damping sleeve prevents the tire from yawing, and the deflection force increases with the increase of the yawing speed, thus not affecting the normal turning and preventing the high-speed shimmy.
【技术实现步骤摘要】
一种前着陆轮防摆振机构
本技术涉及一种三轮行驶前轮转向的车辆或飞机的前轮增稳机构,特别是涉及一种前三点式起落架飞机的前着陆轮的防摆振机构。
技术介绍
通常,飞机起落架有前三点、后三点和自行式起落架等形式。由于前三点起落架,由两个支撑在重心后的主轮,与一个在机头的辅助前轮组成,前三点起落架最大的优点是不会像后三点那样,着陆时容易打转。这样,就算着陆时飞机没有对准跑道,飞行员还有办法修正方向。前三点起落架适用于较大速度行驶的飞机,前三点起落架更容易操纵,可执行较强烈的刹车动作,缩短滑跑距离。因此,前三点式起落架最为常用。但是前三点起落架的缺点是,由于前轮可绕支柱轴线自由转动,飞机在一定运动速度下存在机轮发生自发振荡现象从而出现前轮摆振,摆振时机轮和前支腿的弹性振动和轮面的转动交织在一起,机头强烈摇晃,可能使轮胎撕裂或支腿折断,造成严重事故。因此,解决前轮“摆振”问题或进行前轮减摆具有重要意义。
技术实现思路
本技术所要解决的技术问题是提供一种结构简单、性能可靠、可有效防止出现摆振现象的前着陆轮防摆振机构。为了解决上述技术问题,本技术提供的前着陆轮防摆振机构,包括前轮连接架和支 ...
【技术保护点】
1.一种前着陆轮防摆振机构,包括前轮连接架和支腿,所述前轮连接架上固定有轴套,所述支腿的转动轴安装在所述轴套内,其特征在于:所述转动轴通过上轴承与下轴承安装在轴套内,所述上轴承与下轴承之间在转动轴上依次套装有压缩弹簧和柔性阻尼套,所述压缩弹簧压缩在上轴承与柔性阻尼套之间,所述柔性阻尼套的外壁和内壁分别与轴套和转动轴接触。
【技术特征摘要】
1.一种前着陆轮防摆振机构,包括前轮连接架和支腿,所述前轮连接架上固定有轴套,所述支腿的转动轴安装在所述轴套内,其特征在于:所述转动轴通过上轴承与下轴承安装在轴套内,所述上轴承与下轴承之间在转动轴上依次套装有压缩弹簧和柔性阻尼套,所述压缩弹簧压缩在上轴承与柔性阻尼套之间,所述柔性阻尼套的外壁和内壁分别与轴套和转动轴接触。2.根据权利要求1所述的前着陆轮防摆振机构,其特征在于:所述支腿上设有转动止位板,所述前轮连接架上在转动止位板的两侧设有限制前轮连接架摆动范...
【专利技术属性】
技术研发人员:谢向国,周凯,陶亮,
申请(专利权)人:湖南山河科技股份有限公司,
类型:新型
国别省市:湖南,43
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