CN110763451B - A cabin door lock reliability test device with controllable lock hook load and lock ring position - Google Patents
A cabin door lock reliability test device with controllable lock hook load and lock ring position Download PDFInfo
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Abstract
本发明公开了一种可控锁钩载荷和锁环位置的舱门锁可靠性试验装置，包括：夹具模块、加载与驱动模块、舱门模拟模块，所述加载与驱动模块安装在夹具模块上，所述舱门模拟模块两端分别与加载与驱动模块和夹具模块连接，所述夹具模块包括底板、舱门锁安装板和加强板，所述舱门锁安装板竖直固定安装在底板上侧。本发明可以在闭锁过程通过二号弹簧对舱门锁施加载荷，在开锁过程中一号弹簧和二号弹簧同时对舱门锁施加载荷，实现了开、闭锁阶段的变载荷加载；本发明利用作动筒运动为一号弹簧储存能量，并通过作动筒的泄压使一号弹簧的弹力传递到舱门锁上，运动过程没有需要触发的额外零部件，过程平顺，可靠性高。
The invention discloses a cabin door lock reliability test device with controllable lock hook load and lock ring position, comprising: a clamp module, a loading and driving module, and a cabin door simulation module, wherein the loading and driving module is installed on the clamp module , the two ends of the cabin door simulation module are respectively connected with the loading and driving module and the clamp module, the clamp module includes a base plate, a cabin door lock mounting plate and a reinforcing plate, and the cabin door lock installation plate is vertically fixed and installed on the base plate side. The present invention can apply a load to the cabin door lock through the No. 2 spring during the locking process, and the No. 1 spring and the No. 2 spring simultaneously apply a load to the cabin door lock during the unlocking process, thereby realizing variable load loading in the opening and locking stages; The movement of the actuator stores energy for the No. 1 spring, and the elastic force of the No. 1 spring is transmitted to the door lock through the pressure relief of the actuator. There are no additional components that need to be triggered during the movement process, the process is smooth and the reliability is high.
Description
Technical Field
The invention relates to the technical field related to aviation reliability tests, in particular to a cabin door lock reliability test device capable of controlling lock hook load and lock ring position.
Background
The cabin door lock is used for locking the cabin door after the aircraft takes off and unlocking the cabin door before the aircraft lands, and is always kept in a closed state in the flight process, so that the important influence is caused on the task reliability and the flight safety of the aircraft. Generally, the failure of such products causes the failure of the mission of the airplane, and the serious consequences of the death of the airplane. In order to evaluate the reliability index of the cabin door lock, expose the potential failure mode and weak link of the cabin door lock and realize the reliability increase of the cabin door lock, the reliability test of the cabin door lock needs to be carried out on the ground.
The simulation of the actual working conditions of the airplane door lock in the opening process, the closing process and the locking and holding state plays an important role in the test effect. According to the mission section of the airplane, the aerodynamic load of the cabin door in the landing stage of the airplane is larger than that in the takeoff stage, so that the unlocking load of the cabin door lock is larger than the locking load. In order to ensure that the reliability test result has enough credibility, the loading of locking and unlocking variable loads needs to be realized in the test process, namely, a small load is applied in the locking process, and a large load is applied in the unlocking process. In the locking stage, in the process that the locking ring is hooked by the locking hook and moves upwards, the load applied to the locking hook by the locking ring is gradually increased, and the test device can simulate the change rule of the load of the locking hook. The transverse position of the lock ring is also one of the key factors influencing the opening/closing function and reliability of the cabin door lock, and the testing device can realize the manual adjustment and control of the transverse position of the lock ring. In addition, as comprehensive factors such as random vibration, high and low temperature, humidity, hydraulic pressure and the like need to be considered in the reliability test of the cabin door lock, the test device is required to have smaller volume, smaller weight and larger rigidity on the premise of realizing the simulation of the motion function of the cabin door lock and the loading of the load, so that the test can be conveniently carried out in a three-comprehensive-environment test box.
Aiming at the problem of the reliability test of the cabin door lock, Chinese patent 'an airplane cabin door lock reliability test device' with the patent number of 201210033851.7 and 'an airplane cabin door lock reliability test device' with the patent number of 201410279845.9 provide test devices respectively aiming at the condition that a cabin door rotating shaft is perpendicular to and parallel to a cabin door lock hook rotating shaft. Both of these solutions do not allow the lateral position of the staples to be adjusted. The Chinese patent 'vertical test device for reliability test of an uplock of a door of an aircraft landing gear', aiming at a trigger type cabin door lock, provides a test device which adjusts and controls the transverse position of a locking ring through the position of a 'front guide groove'. The Chinese patent horizontal test device for the reliability test of the uplock of the landing gear door of the airplane controls and adjusts the transverse position of the lock ring through the length of the rotary beam. However, the above-mentioned test apparatus has problems that: the overall rigidity is low, serious resonance phenomenon can be generated in a low-frequency area of random vibration, the power spectrum density of the random vibration born by the cabin door lock cannot be within a specified error limit, and the problem of unlocking and locking variable load loading is not considered.
Chinese patent "an improved aircraft landing gear door lock test device", application No. 201610352630.4, describes a test device capable of realizing locking, unlocking variable load loading and lock ring lateral adjustment. The test device controls the lateral position of the lock ring by adjusting the length of the 'rotating beam'. The energy is stored in the reverse spring in advance, and the reverse spring is released through a set of steel cable and buckle at the moment when the cabin door lock completes locking, so that the change of the locking load and unlocking load of the cabin door lock is realized. The test device has the problems that the requirement on the dimensional accuracy of parts such as a steel cable, a buckle and the like by the reverse spring releasing device is extremely high, and the fault that the reverse spring is released in advance under the condition that a cabin door lock is not completely closed or the cabin door lock and the test device stop moving but the reverse spring is not released easily occurs in practice. Chinese patent 'reliability test device of hatch door lock capable of realizing variable load loading', patent number 201710158827.9, introduces a test device capable of realizing variable load loading, and the problem that this scheme exists is: the testing device has large integral size and height and small rigidity, can not realize the adjustment of the transverse position of the lock ring and can not control the change rule of the load of the lock ring in the locking process.
Disclosure of Invention
The invention aims to provide a cabin door lock reliability test device capable of controlling lock hook load and lock ring position, which aims to solve the problems that the existing cabin door lock reliability test device in the background art is low in overall rigidity, can generate serious resonance phenomenon in a low-frequency region of random vibration, cannot enable the power spectral density of the random vibration borne by a cabin door lock to be within a specified error limit, and does not consider the loading problem of unlocking and locking variable load, and the test device is large in overall size and height, low in rigidity, incapable of realizing adjustment of the transverse position of the lock ring and incapable of controlling the change rule of the lock ring load in the locking process.
In order to achieve the purpose, the invention provides the following technical scheme: a hatch door lock reliability test device capable of controlling lock hook load and lock ring position comprises: anchor clamps module, loading and drive module, hatch door analog module, the loading is installed on anchor clamps module with drive module, hatch door analog module both ends are connected with loading and drive module and anchor clamps module respectively, anchor clamps module includes bottom plate, hatch door lock mounting panel and reinforcing plate, the vertical fixed mounting of hatch door lock mounting panel is at the bottom plate upside, and hatch door lock mounting panel upper portion is provided with the bolt hole that is used for installing the cabin lock, the reinforcing plate is located cabin lock mounting panel one side, and reinforcing plate and hatch door lock mounting panel and bottom plate fixed connection are in the same place, loading and drive module include pressurized strut, guide block, slide bar, No. two slide bars, No. one spring, No. two springs, spring spacing piece, load adjusting nut, first stop screw, L shape rocking arm, adjustable rocking arm subassembly, pivot, connecting rod, pressurized strut support, guide block support, Bearing, bearing frame.
Preferably, the actuator cylinder support is fixedly mounted on a bottom plate of the clamp module, the actuator cylinder is movably connected with the actuator cylinder support through a rotating pair, one end of a pull rod of the actuator cylinder is fixedly connected with a first sliding rod, the other end of the first sliding rod is connected with the upper end of an L-shaped rocker arm through a lug, a strip-shaped hole is formed in the lug of the first sliding rod, an external thread is arranged in the middle of the first sliding rod, a spring limiting piece and a load adjusting nut are sequentially mounted on the first sliding rod, the L-shaped rocker arm is fixedly connected to the rotating shaft, the lower end of the L-shaped rocker arm is connected with the lower end of a connecting rod through the rotating pair, and the upper end of the connecting rod is connected with the cabin door simulation module through the.
Preferably, guide block support fixed mounting is on the bottom plate of anchor clamps module, the guide block passes through revolute pair swing joint with the guide block support, the one end of No. two slide bars is installed in the guide block through removing the pair, and the other end of No. two slide bars passes through the revolute pair and is connected with adjustable rocking arm subassembly, adjustable rocking arm subassembly fixed connection is in the pivot, the middle part of No. two slide bars is provided with the external screw thread, and installs No. two springs, the spacing piece of spring and load adjusting nut on No. two slide bars in proper order.
Preferably, the external threads on the first sliding rod and the second sliding rod are provided with strip-shaped grooves along the axis direction, the through hole in the middle of the spring limiting piece is internally provided with a bulge, the bulge is matched with the strip-shaped grooves, the load adjusting nuts on the first sliding rod and the second sliding rod are respectively provided with a threaded hole, and the first limiting screw respectively penetrates through the threaded holes on the two load adjusting nuts to be abutted to the strip-shaped grooves of the first sliding rod and the second sliding rod.
Preferably, the adjustable rocker arm assembly comprises a shaped rocker arm, a slider, an adjusting rod, a connecting cover and a reinforcing beam, wherein threaded holes in the vertical direction and the horizontal direction are respectively formed in the middle of the reinforcing beam in a penetrating mode, the reinforcing beam is fixed to the upper portion of the shaped rocker arm, a sliding rail is arranged on the inner wall of the shaped rocker arm, the slider is installed on the shaped rocker arm through the sliding rail, a through hole is formed in the middle of the connecting cover in a penetrating mode, the connecting cover is fixedly connected to the upper end of the slider, the adjusting rod is of a screw rod structure, a boss is arranged at the lower end of the adjusting rod, one end of the adjusting rod penetrates through the through hole in the connecting cover and the threaded holes in the vertical direction of the reinforcing beam, the other end of the adjusting rod extends to be located above the reinforcing beam.
Preferably, the adjusting rod is provided with a strip-shaped groove along the axis direction, a second limit screw is arranged in a threaded hole in the horizontal direction of the reinforcing beam, and the second limit screw penetrates through the threaded hole in the horizontal direction of the reinforcing beam and abuts against the strip-shaped groove in the adjusting rod.
Preferably, the cabin door simulation module comprises a lock ring, an inner rocker arm, an outer rocker arm, a rocker arm support, a fixing bolt and a positioning pin, wherein two sets of lugs are arranged at one end of the inner rocker arm, the lock ring is installed between the two sets of lugs through a revolute pair, a sliding groove is formed in the other end of the inner rocker arm, one end of the outer rocker arm is installed in the sliding groove of the inner rocker arm, the other end of the outer rocker arm is connected with the rocker arm support through a revolute pair, and the rocker arm support is fixedly installed on a bottom.
Preferably, the inside bottom both sides of spout of inboard rocking arm all are equipped with the fixed orifices, and are two sets of be equipped with two sets of first locating holes between the fixed orifices, the position that corresponds the fixed orifices on the rocking arm of outside is provided with the bar hole, and the position that corresponds first locating hole on the rocking arm of outside is provided with the second locating hole, fixing bolt passes the fixed orifices on the rocking arm of inboard and the bar hole on the rocking arm of outside, the locating pin passes first locating hole on the rocking arm of inboard and the second locating hole on the rocking arm of outside.
The invention provides a cabin door lock reliability test device capable of controlling lock hook load and lock ring position, which has the following beneficial effects:
(1) the load can be applied to the cabin door lock by the second spring in the locking process, and the first spring and the second spring simultaneously apply the load to the cabin door lock in the unlocking process, so that the variable load loading in the opening and locking stages is realized; the invention utilizes the movement of the actuator cylinder as the first spring to store energy, and the elastic force of the first spring is transmitted to the cabin door lock through the pressure relief of the actuator cylinder, no additional part needs to be triggered in the movement process, the process is smooth, and the reliability is high.
(2) The equivalent elastic coefficient of the second spring is controlled by adjusting the arm length of the adjustable rocker arm, and the load of the first spring and the second spring is controlled by the two load adjusting nuts, so that the change rule of opening and closing loads is controlled, and the load error of the locking ring caused by the elastic coefficient error of the spring is eliminated.
(3) According to the invention, the transverse position of the lock ring can be adjusted through the positioning holes of the inner rocker arm and the outer rocker arm, the influence of the transverse position of the lock ring on the test reliability can be simulated, and the operation is simple and convenient.
(4) The invention has smaller volume and larger rigidity; after the lock is unlocked, the pull rod and the lock ring of the actuating cylinder automatically recover to the position before locking under the action of the elastic force of the spring, pressure does not need to be provided for the actuating cylinder, and the control system of the whole test is simplified.
Figure illustrates the drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a perspective assembly view of the present invention;
FIG. 3 is a perspective view of a clamp module of the present invention;
FIG. 4 is a perspective view of the loading and driving module of the present invention;
FIG. 5 is a schematic diagram of the adjustment of the equivalent spring constant of the second spring according to the present invention;
FIG. 6 is a schematic structural view of an actuator cylinder and a first sliding rod according to the present invention;
FIG. 7 is a perspective view of a hatch simulation module of the present invention;
FIG. 8 is a schematic view of lateral position adjustment of the locking collar of the present invention;
FIG. 9 is a perspective view of a guide block of the present invention;
FIG. 10 is a perspective view of slide bar number two of the present invention;
FIG. 11 is a perspective view of a spacing piece of the present invention;
FIG. 12 is a perspective view of an L-shaped rocker arm of the present invention;
FIG. 13 is a perspective view of a spindle of the present invention;
FIG. 14 is a perspective view of the adjustable rocker arm assembly of the present invention;
FIG. 15 is a perspective view of the reinforcement beam of the present invention;
FIG. 16 is a perspective view of an adjustment lever of the present invention;
FIG. 17 is a perspective view of a slider of the present invention;
fig. 18 is a perspective view of a U-shaped rocker arm of the present invention.
In the figure: 1. a hatch lock mounting plate; 2. a reinforcing plate; 3. a base plate; 4. an actuator cylinder; 5. a guide block; 6. a first sliding rod; 7. a second sliding rod; 8. a first spring; 9. a second spring; 10. a spring limiting sheet; 11. a load adjusting nut; 12. a first limit screw; 13. an L-shaped rocker arm; 14. an adjustable rocker arm assembly; 14a, a U-shaped rocker arm; 14b, a slide block; 14c, adjusting a rod; 14d, connecting the cover; 14e, a reinforcing beam; 15. a rotating shaft; 16. a connecting rod; 17. an actuator cylinder support; 18. a guide block support; 19. a bearing; 20. a bearing seat; 21. a locking ring; 22. an inboard rocker arm; 23. an outer rocker arm; 24. a rocker arm support; 25. fixing the bolt; 26. positioning pins; 27. and a second limit screw.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention.
Example (b):
in fig. 1, 2, 3, 4, 5 and 6, the test apparatus includes: the device comprises a clamp module, a loading and driving module and a cabin door simulation module; the fixture module is formed by fixedly connecting 1 cabin door lock mounting plate 1, 2 reinforcing plates 2 and 1 bottom plate 3 together; the loading and driving module consists of 1 actuating cylinder 4, 1 guide block 5, 1 first slide rod 6, 1 second slide rod 7, 1 first spring 8, 1 second spring 9, 2 spring limiting pieces 10, 2 load adjusting nuts 11, 2 first limiting screws 12, 1L-shaped rocker arm 13, 1 adjustable rocker arm component 14, 1 rotating shaft 15, 1 connecting rod 16, 1 actuating cylinder support 17, 1 guide block support 18, 2 bearings 19 and 2 bearing seats 20; the hatch door simulation module consists of 1 lock ring 21, 1 inner rocker 22, 1 outer rocker 23, 1 rocker support 24, 2 fixing bolts 25 and 1 positioning pin 26.
In fig. 3, the cabin door lock mounting plate 1, the reinforcing plate 2 and the bottom plate 3 are formed by integrally cutting an aluminum alloy, bolt holes for mounting the cabin door lock are formed in the bottom plate 3, the upper portion of the cabin door lock mounting plate 1 is provided with the bolt holes for mounting the cabin door lock, the reinforcing plate 2 is fixedly connected to the upper side of the bottom plate 3 in a vertical mode, and the cabin door lock mounting plate 1 and the bottom plate 3 are fixedly connected together in the vertical mode.
In figures 1, 2, 4, 5, 6, the loading and driving module is mounted on the base plate 3 by means of a ram support 17, a guide block support 18 and two bearing blocks 20 and is connected to the door simulation module by means of a connecting rod 16; two bearings 19 are respectively arranged in the two bearing seats 20, two ends of the rotating shaft 15 are arranged in the bearings 19, and the middle part of the rotating shaft 15 is fixedly connected with the L-shaped rocker arm 13 and the adjustable rocker arm assembly 14 through flat keys.
In fig. 1, 2, 4, 6 and 11, the actuator cylinder 4 is mounted on the base plate 3 through an actuator cylinder support 17, and a first sliding rod 6 is fixedly connected to a pull rod of the actuator cylinder; the other end of the first sliding rod 6 is provided with a lug, a strip-shaped hole is formed in the lug, and an external thread and a strip-shaped groove are formed in the middle of the first sliding rod 6; the first sliding rod 6 is also sequentially provided with a first spring 8, a spring limiting piece 10 and a load adjusting nut 11; the spring limiting piece 10 is provided with a protrusion corresponding to the groove inside for preventing the spring limiting piece 10 from rotating.
In fig. 1, 2, 5, 9 and 10, one end of the second sliding rod 7 is provided with a double lug, which is connected with a sliding block 14b on the adjustable rocker arm assembly 14 through a revolute pair, the other end is of a polished rod structure, which is installed in the guide block 5 through a sliding pair, and the middle part is provided with an external thread and a strip-shaped groove; and a second spring 9, a spring limiting piece 10 and a load adjusting nut 11 are further sequentially arranged on the second sliding rod 7.
In fig. 14-18, the adjustable rocker arm assembly 14 includes a U-shaped rocker arm 14a, a slider 14b, an adjustment lever 14c, a connecting cover 14d, and a reinforcement beam 14 e. The reinforcing beam 14e is fixed on the upper part of the U-shaped rocker arm 14a through a bolt, and the middle part of the reinforcing beam 14e is provided with threaded holes in the vertical direction and the horizontal direction and is fixed on the upper part of the U-shaped rocker arm 14 a; a slide rail is arranged in the U-shaped rocker 14a, and the sliding block 14b is arranged on the slide rail of the U-shaped rocker 14 a; a through hole is formed in the middle of the connecting cover 14d, and the connecting cover 14 is fixedly connected to the upper side of the sliding block; the upper part of the adjusting rod 14c is of an external thread structure, the lower end of the groove of the adjusting rod 14c is provided with a boss, the adjusting rod 14c respectively penetrates through a through hole of the connecting cover 14d and a threaded hole in the vertical direction of the reinforcing beam, the upper end of the adjusting rod 14c extends out of the reinforcing beam 14e, and the boss at the lower end of the adjusting rod 14c is positioned between the connecting cover 14d and the slider 14 b; the proper position of the sliding block 14b is determined by adjusting the adjusting rod 14c, so that the purpose of changing the equivalent elastic coefficient of the second spring 9 is achieved.
The upper end of the L-shaped rocker arm 13 is provided with a rolling bearing which is positioned in a strip-shaped hole of the first sliding rod 6, the lower end of the L-shaped rocker arm 13 is provided with a connecting rod 16 through a pin, and the upper end of the connecting rod 16 is connected with an inner side rocker arm 22 through a pin.
In fig. 1, 2, 7 and 8, the rocker arm stand 24 is fixed to the base plate 3 by bolts; one end of the inner side rocker arm 22 is provided with a lock ring 21 and is connected with the connecting rod 16 through a pin, the other end of the inner side rocker arm is of a groove structure, the bottom of the groove is provided with two fixing holes, and two positioning holes are arranged between the fixing holes; one end of the outer rocker arm 23 is arranged in a groove of the inner rocker arm 22 and is provided with two strip-shaped holes, two positioning holes are arranged between the strip-shaped holes, and the other end of the outer rocker arm is connected with the rocker arm support 24 through a pin; the positioning holes are internally provided with positioning pins 26, and the fixing holes and the strip-shaped holes are internally provided with fixing bolts25; the distance between the positioning holes of the inner rocker arm 22 is LN, and the distance between the positioning holes of the outer rocker arm 23 is LW=LN+h；
The adjustment method of the lateral position of the lock ring 21 is:
(1) loosening the fixing bolt 25 and pulling out the positioning pin 26;
(2) moving the inner rocker arm 22 in a required direction for a distance h, wherein a pair of positioning holes corresponding to the positions on the inner rocker arm 22 and the outer rocker arm 23 are coaxial;
(3) the dowel pin 26 is inserted into the coaxial dowel hole and the fixing bolt 25 is retightened.
In fig. 12, the L-shaped rocker arm 13 is an L-shaped double lug structure, and when one end of the L-shaped rocker arm 13 is pulled, the other end moves simultaneously, so that the link 16 moves.
In fig. 13, the rotating shaft 15 has steps, the L-shaped rocker arm 13 and the adjustable rocker arm assembly 14 are respectively and fixedly connected to the low steps at two sides of the rotating shaft 15 in a flat key manner, the rotating shaft 15 is horizontally installed in the bearing 19, and a certain angle is arranged between the L-shaped rocker arm 13 and the adjustable rocker arm assembly 14.
The working principle and the process of the variable load loading of the test device are as follows:
(1) determining the maximum blocking load to be F according to the test requirementB,maxThe equivalent elastic coefficient of the second spring 9 is k, and the unlocking load is FKThen the spring 8 is required to provide the elastic force F in the locked state1=FK-FB,max；
(2) The adjusting drop nut 11 on the first sliding rod 6 is adjusted to ensure that the elastic force F provided by the first spring 8 in a locking stateTH,1Equal to F1; the position of the slider 14b is adjusted so that the distance L2 between the slider 14b and the rotating shaft 15 satisfies L2=k×L1K'; the adjusting drop nut 11 on the second sliding rod 7 is adjusted to ensure that the elastic force F provided by the second spring 9 in a locking stateTH,2Satisfies FTH,2=FB,max×L1/L2；
(3) Before the test starts, the cabin door lock is in an open state, and the lock ring 21 is located at the lowest position;
（4) When the device is locked, the actuating cylinder 4 supplies locking pressure, the first sliding rod 6 retracts to drive the L-shaped rocker arm 13, the rotating shaft 15 and the adjustable rocker arm assembly 14 to rotate anticlockwise, meanwhile, the lock ring 21 is driven to move upwards, and the first spring 8 is compressed; after the lock ring 21 impacts the lock hook upwards and triggers the cabin door lock, the actuating cylinder 4 just moves to the extreme position and stops moving, and the elastic force F generated by the first spring 8 is at the momentTH,1Is equal to F1；
(5) After the cabin door lock is triggered, the cabin door lock starts to be locked under the action of hydraulic pressure, overcomes the elastic force of the second spring 9 to drive the locking ring 21 to continuously move upwards until the locking position is reached, and the elastic force F provided by the second spring 9 at the momentTH,2Satisfies FTH,1=FB,max×L1/L2(ii) a Due to the action of the strip-shaped hole on the first sliding rod 6, the position of the actuating cylinder 4 and the elastic force F of the first spring are in the processTH,1The change is not changed;
(6) before the cabin door lock is unlocked, the actuating cylinder 4 is decompressed, and the elastic force of the first spring 8 is released and transmitted to the lock ring 21; the lock ring 21 is now subjected to a downward load of FTH,1+FTH,2×L1/L2；
(7) The cabin door lock is used for supplying unlocking pressure, and the cabin door lock overcomes the elasticity of the first spring 8 and the second spring 9 to unlock under the driving of hydraulic pressure; after the hatch lock is opened, the locking ring 21, the connecting rod 16 and the like move downwards under the driving of the elastic force of the first spring 8 and return to the initial position.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
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| CN201911122252.0A CN110763451B (en) | 2019-11-15 | 2019-11-15 | A cabin door lock reliability test device with controllable lock hook load and lock ring position |
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| CN201911122252.0A CN110763451B (en) | 2019-11-15 | 2019-11-15 | A cabin door lock reliability test device with controllable lock hook load and lock ring position |
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| CN114199545B (en) * | 2021-12-15 | 2024-09-17 | 辽宁美托科技股份有限公司 | Device for testing relation between opening and closing force and locking force of hook lock |
| CN114383934B (en) * | 2022-01-10 | 2023-11-21 | 中航飞机起落架有限责任公司 | Landing gear hook ring lock ring test loading device and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010064186A (en) * | 1999-12-24 | 2001-07-09 | 김민박,라이문트하이넨 | Tester for clutch spring of a door lock actuator |
| CN103983443A (en) * | 2014-05-21 | 2014-08-13 | 西北工业大学 | Horizontal testing device for reliability test of aircraft landing gear door uplock |
| CN105841951A (en) * | 2016-05-25 | 2016-08-10 | 西北工业大学 | Improved cabin door lock testing apparatus for aircraft undercarriage |
| CN106908233A (en) * | 2017-03-17 | 2017-06-30 | 西北工业大学 | The cabin door lock reliability test of varying load loading can be realized |
| CN107084834A (en) * | 2017-04-21 | 2017-08-22 | 西北工业大学 | Uplock reliability test device capable of adjusting the lateral position of the lock ring |
| CN108801617A (en) * | 2018-06-12 | 2018-11-13 | 西北工业大学 | A kind of load-measuring device for cabin door lock reliability test |
-
2019
- 2019-11-15 CN CN201911122252.0A patent/CN110763451B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010064186A (en) * | 1999-12-24 | 2001-07-09 | 김민박,라이문트하이넨 | Tester for clutch spring of a door lock actuator |
| CN103983443A (en) * | 2014-05-21 | 2014-08-13 | 西北工业大学 | Horizontal testing device for reliability test of aircraft landing gear door uplock |
| CN105841951A (en) * | 2016-05-25 | 2016-08-10 | 西北工业大学 | Improved cabin door lock testing apparatus for aircraft undercarriage |
| CN106908233A (en) * | 2017-03-17 | 2017-06-30 | 西北工业大学 | The cabin door lock reliability test of varying load loading can be realized |
| CN107084834A (en) * | 2017-04-21 | 2017-08-22 | 西北工业大学 | Uplock reliability test device capable of adjusting the lateral position of the lock ring |
| CN108801617A (en) * | 2018-06-12 | 2018-11-13 | 西北工业大学 | A kind of load-measuring device for cabin door lock reliability test |
Non-Patent Citations (1)
| Title |
|---|
| 孙中超 等.基于多因素耦合的机构可靠性仿真试验方法.《宇航学报》.2013,第34卷(第11期), * |
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