The utility model relates to a retractable aero model landing gear, which relates to an aero model landing gear. The four-bar mechanism is provided with a four-bar mechanism, a support and a limit plate; the four-bar mechanism is provided with a servo, a rocker arm, a connecting rod and a support shaft. The servo is the power source, the rocker arm is the original part, the connecting rod is the transmission part, and the support shaft is the actuator; the upper end of the rocker arm is connected with the server, the lower end of the rocker arm is connected with the connecting rod, and the limit plate is fixed on it. The rocker arm is articulated with the connecting rod at one end, the other end of the connecting rod is connected with the supporting shaft, and the wheel is installed at the lower end of the supporting shaft. The opening of the supporting shaft is installed on the rotating shaft matched with the bearing. The bearing is fixed on the lower part of the fuselage by the bearing seat. The supporting shaft can rotate freely around the rotating shaft, and the supporting seat is fixed in the front and rear of the supporting shaft. The limit plate at the hinge of the rod contacts the upper end face of the connecting rod, which limits the rotation of the rocker arm to no more than the predetermined 45 degrees, so that the landing gear has reliability and stability.
【技术实现步骤摘要】
一种可收放的航模起落架
本技术涉及航模起落架,尤其是涉及一种可收放的航模起落架。
技术介绍
随着我国近年来对航空工业发展的越发重视,与航空事业的发展息息相关的航空模型也越来越受到关注和发展,市场上也出现了越来越多外形、结构各异的航空模型。而纵观这些航空模型,其起落架结构多为固定式不可活动。随着对航模飞机飞行性能和飞行速度要求的提高,固定式起落架对航模飞机空气动力性能的影响也随之加大。中国专利CN104368157A公开一种航模起落架,包括机身支架和轮子,所述支架上固定设置有起落架装置,所述起落架装置包括上杆和下杆,所述下杆设置在上杆内,所述上杆上设置有上板,所述下杆上设置有下板,所述上板和下板之间设置有内弹片和外弹片,所述轮子设置在下杆的一端;该专利技术结构设计合理,能够利用内弹片和外弹片的不同抗弯值来达到两级缓冲的效果,对机体支架形成有效支撑,缓冲效果好,节约成本。
技术实现思路
本技术的目的在于提供可折叠的一种可收放的航模起落架。本技术设有四连杆机构、支座和限位板;所述四连杆机构设有伺服器、摇臂、连杆和支撑轴,所述伺服器为动力源,摇臂为原动件,连杆为传动件,支撑轴为执行件;所述摇臂上端与伺服器相连,摇臂下端与连杆相连,限位板固定在摇臂与连杆铰接的一端,连杆另一端与支撑轴相连,支撑轴下端安装轮子,支撑轴上端开孔安装在与轴承配合的转轴上,轴承利用轴承座固定在机身下部;支撑轴可绕转轴自由转动,支座位于支撑轴的正后方;固定在摇臂与连杆铰接处的限位板与连杆的上端面相接触,限制摇臂的转动不超过预定的45度,使起落架具有可靠性和稳定性。所述支撑轴的中间部位可采用半工字槽 ...
【技术保护点】
1.一种可收放的航模起落架,其特征在于设有四连杆机构、支座和限位板;所述四连杆机构设有伺服器、摇臂、连杆和支撑轴,所述伺服器为动力源,摇臂为原动件,连杆为传动件,支撑轴为执行件;所述摇臂上端与伺服器相连,摇臂下端与连杆相连,限位板固定在摇臂与连杆铰接的一端,连杆另一端与支撑轴相连,支撑轴下端安装轮子,支撑轴上端开孔安装在与轴承配合的转轴上,轴承利用轴承座固定在机身下部;支撑轴可绕转轴自由转动,支座位于支撑轴的正后方;固定在摇臂与连杆铰接处的限位板与连杆的上端面相接触,限制摇臂的转动不超过预定的45度,使起落架具有可靠性和稳定性。
【技术特征摘要】
1.一种可收放的航模起落架,其特征在于设有四连杆机构、支座和限位板;所述四连杆机构设有伺服器、摇臂、连杆和支撑轴,所述伺服器为动力源,摇臂为原动件,连杆为传动件,支撑轴为执行件;所述摇臂上端与伺服器相连,摇臂下端与连杆相连,限位板固定在摇臂与连杆铰接的一端,连杆另一端与支撑轴相连,支撑轴下端安装轮子,支撑轴上端开孔安装在与轴承配合的转轴上,轴承利用轴承座固定在机身...
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