A helicopter tail wheel lock comprises a magnetic control switch and a magnetic steel assembly, the magnetic control switch comprises a Hall integrated circuit and a control circuit of the Hall integrated circuit, the control circuit comprises an optical MOS relay, the magnetic control switch is used for controlling starting and stopping of a motor, the magnetic steel assembly is formed by embedding permanent magnetic steel in a check block, and the magnetic steel assembly is used for controlling on-off of the magnetic control switch. A magnetic control switch is used for replacing a mechanical microswitch, magnetic steel is embedded in the end face, close to a proximity switch, of a check block to form a magnetic steel assembly, when the check block moves left and right, the N pole of the magnetic steel can directly face a magnetic induction window of a Hall switch type integrated circuit in the magnetic control switch, and on-off control over the optical MOS solid-state relay is achieved. When the magnetic steel assembly is far away from the magnetic induction window of the Hall switch type integrated circuit in the magnetic control switch, the magnetic control switch circuit is powered on, and when the magnetic steel assembly is right opposite to the magnetic induction window of the Hall switch type integrated circuit in the magnetic control switch, the magnetic control switch circuit is powered off, the reliability of the tail wheel lock is greatly improved, and the service life of the tail wheel lock is greatly prolonged.
一种直升机尾轮锁,包括磁控开关和磁钢组件,所述磁控开关包括霍尔集成电路及其控制电路,控制电路包括光MOS继电器,所述磁控开光用于控制电机的启停,所述磁钢组件为挡块内镶嵌永久磁钢组成,所述磁钢组件用于控制磁控开关的通断,使用磁控开关代替机械式微动开关,在挡块靠近接近开关的端面镶嵌磁钢制成磁钢组件,挡块左右移动时,磁钢N极能够正对磁控开关中霍尔开关型集成电路的磁感应窗口,实现光MOS固体继电器通断控制,磁钢组件远离磁控开关中霍尔开关型集成电路的磁感应窗口时,磁控开关电路通电,磁钢组件正对磁控开关中霍尔开关型集成电路的磁感应窗口时,磁控开关电路断电,大大提高尾轮锁的可靠性和使用寿命。
Helicopter tail wheel lock
一种直升机尾轮锁
2024-01-26
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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