A hatch door lock reliability test device with controllable hook load and lock ring position

Abstract

The invention discloses a hatch door lock reliability test device with controllable lock hook load and lock ring position, comprising: a fixture module, a loading and driving module, and a hatch simulation module, and the loading and driving module is installed on the fixture module , the two ends of the hatch simulation module are respectively connected to the loading and driving module and the fixture module, the fixture module includes a base plate, a hatch lock mounting plate and a reinforcement plate, and the hatch lock mounting plate is vertically and fixedly installed on the base plate side. The present invention can apply load to the cabin door lock through the No. 2 spring in the locking process, and the No. 1 spring and the No. 2 spring can apply load to the cabin door lock at the same time in the unlocking process, realizing the variable load loading in the opening and locking stages; the present invention utilizes The movement of the actuator stores energy for the No. 1 spring, and through the pressure relief of the actuator, the elastic force of the No. 1 spring is transmitted to the hatch lock. There are no additional parts that need to be triggered during the movement, and the process is smooth and reliable.

Description

technical field [0001] The invention relates to the related technical field of aviation reliability test, in particular to a hatch door lock reliability test device with controllable lock hook load and lock ring position. Background technique [0002] The door lock is used to lock the door after the aircraft takes off, unlock the door before the aircraft lands, and keep it closed during the flight, which has an important impact on the mission reliability and flight safety of the aircraft. Under normal circumstances, the failure of such products will cause the failure of the aircraft mission in the slightest, and cause the serious consequences of aircraft crash and death in severe cases. In order to evaluate the reliability index of the hatch lock, expose the potential failure modes and weak links of the hatch lock, and realize the reliability increase of the hatch lock, it is necessary to conduct a reliability test on the hatch lock on the ground. [0003] The simulation of...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a hatch lock reliability test device with controllable lock hook load and lock ring position, to solve the problem that the overall stiffness of the existing hatch lock reliability test device mentioned in the background technology is low. The low-frequency region of random vibration will produce serious resonance phenomenon, which cannot make the power spectral density of random vibration suffered by the door lock within the specified error limit, and does not consider the problem of variable loading of opening and closing, and the overall size of the test device and The height is large, the stiffness is small, the lateral position adjustment of the lock ring cannot be realized, and the change law of the lock ring load cannot be controlled during the locking process

Images