High stiffness test device for reliability test of hatch lock
A test device and cabin door lock technology, which is applied in the field of aircraft cabin door lock reliability testing, can solve the problems of low overall stiffness and first-order main frequency, achieve short force transmission path, increase overall stiffness, and reduce volume and weight Effect
Active Publication Date: 2018-11-13
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a high rigidity test device for the reliability test of the hatch lock in order to solve the problem that the overall stiffness and the first-order main frequency of the existing hatch lock test device are low
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specific Embodiment approach 1
[0024] Specific implementation mode one: the following combination Figure 1 to Figure 8 Describe this embodiment, the high rigidity test device used for the reliability test of the hatch lock described in this embodiment, it comprises reinforcing plate 1, hatch lock installation plate 2, bottom plate 3, lock ring adjustment unit and load adjustment unit,
[0025] The lock ring adjustment unit includes the No. 1 slide rail 4-1, two No. 1 slide blocks 4-2, two lock ring adjustment blocks 4-3, two No. 1 slide rail joints 4-4, and the center slide rail joint 4- 5. Two No. 1 connecting rods 4-6 and lock ring 4-7;
[0026] The load adjustment unit includes No. 2 slide rail 5-1, No. 2 slide block 5-2, disc spring group 5-3, load adjustment rod 5-4, load adjustment block 5-5, and No. 2 slide rail joint 5-6 And two No. 2 connecting rods 5-7;
[0027] The hatch lock mounting plate 2 is fixed on the base plate 3 in a vertical manner, and the both sides of the hatch lock mounting plate...
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A high-stiffness test device for cabin door lock reliability test belongs to the technical field of airplane cabin door lock reliability test. The invention aims to solve the problem that the existing cabin door lock test device is of low overall stiffness and first-order dominant frequency. A cabin door lock mounting plate is vertically fixed on a bottom plate. The two sides of the cabin door lock mounting plate are respectively a cabin door lock test area and a support area. The upper part of the cabin door lock mounting plate is provided with a bolt hole which is used to mount a cabin door lock. The cabin door lock is mounted in the cabin door lock test area. A reinforcing plate is mounted in the support area, and is consolidated together with the cabin door lock mounting plate and the bottom plate at a position corresponding to the cabin door lock mounting position. A lock ring regulation unit and a load regulation unit are arranged in the cabin door lock test area. The lock ring regulation unit is arranged on the bottom plate along a direction parallel to the cabin door lock mounting plate. The mounting direction of the load regulation unit on the bottom plate is perpendicular to the lock ring regulation unit. The high-stiffness test device is used for airplane cabin door lock reliability test.
Description
technical field [0001] The invention relates to a high-rigidity test device for reliability testing of cabin door locks, and belongs to the technical field of reliability testing of aircraft cabin door locks. Background technique [0002] The aircraft door lock is an important part of the landing gear system, which is used to lock the door after the aircraft takes off and unlock the door before the aircraft lands. If the door lock cannot be locked after the aircraft takes off, it cannot bear the aerodynamic load of the door and remain locked during the flight; if the door lock cannot be successfully unlocked before the aircraft lands, it may cause If the mission of the aircraft fails, it will cause a serious accident of aircraft crash and death. It can be seen that the reliability of the door lock is directly related to flight safety. In order to evaluate the reliability index of the hatch lock, expose the main failure modes and weak links of the hatch lock, and obtain imp...
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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 孙中超喻天翔崔卫民宋笔锋
Owner NORTHWESTERN POLYTECHNICAL UNIV