The invention discloses a control logic coordination valve of an undercarriage cabin door uplock, which is wide in coordination range and higher in reliability. According to the technical scheme, an oil inlet pipe nozzle supplies pressure, an upper lock is in linkage with a pressing rod through a pressing mechanism, a valve element reset spring is compressed through a stepped shaft, a valve seat is driven to seal a valve element, and the oil pipe nozzle is closed; when the cabin door uplock is completely opened, the uplock applies pressing force to the pressing rod through the motion trail ofthe pressing mechanism, the pressing rod pushes the valve element, compresses the valve element reset spring, separates the valve seat of the valve and triggers the valve oil holes distributed in theconical shell of the valve element, and hydraulic oil liquid enters a valve cavity of the rear end cover through a cabin door actuator cylinder pressure supply oil way. The oil flows from the oil outlet pipe nozzle to the cabin door actuator cylinder, the actuator cylinder is pushed to open the cabin door, the compression valve element reset spring and the valve element reset spring press the pressing rod at the initial position under the action of elastic force, simultaneous pressure supply of the uplock and the cabin door actuator cylinder is achieved, and the control logic of the sequentialmovement sequence is completed through the trigger type coordination valve.
本发明公开的一种起落架舱门上位锁控制逻辑协调活门,协动范围宽,可靠性更高。本发明通过下述技术方案实现:采进油管嘴供压,上位锁通过按压机构联动压杆,通过阶梯轴压缩阀芯复位弹簧,驱动阀座密封阀芯,关闭油管嘴;当舱门上位锁完全打开,上位锁通过按压机构运动轨迹对压杆施加按压力,压杆推动阀芯,压缩阀芯复位弹簧,将活门阀座分离,触发阀芯圆锥壳体上分布的活门油孔,液压油液通过舱门作动筒供压油路进入后置端盖活门腔,从出油管嘴流向舱门作动筒,推动作动筒打开舱门,压缩阀芯复位弹簧和阀芯复位弹簧在弹性力作用下,将压杆按压在初始位置,实现上位锁与舱门作动筒同时供压,通过触发式协调活门完成先后运动顺序的控制逻辑。
control logic coordination valve of undercarriage cabin door uplock
起落架舱门上位锁控制逻辑协调活门
2021-03-19
Patent
Electronic Resource
Chinese
Undercarriage cabin door opening position locking device linked with undercarriage
European Patent Office | 2025
|