CN107084834A - The uplock reliability test of lock ring lateral attitude adjustment can be realized - Google Patents
The uplock reliability test of lock ring lateral attitude adjustment can be realized Download PDFInfo
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- CN107084834A CN107084834A CN201710264899.1A CN201710264899A CN107084834A CN 107084834 A CN107084834 A CN 107084834A CN 201710264899 A CN201710264899 A CN 201710264899A CN 107084834 A CN107084834 A CN 107084834A
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- lock ring
- uplock
- crank
- module
- screw rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Transmission Devices (AREA)
Abstract
The uplock reliability test of lock ring lateral attitude adjustment can be realized, belongs to air equipment uplock reliability test technical field.The present invention is low in order to solve existing aircraft uplock experimental rig integral rigidity, and can not realize the problem of lock ring lateral attitude is artificially adjusted.Its uplock is test specimen, on support stand；Lock ring module, crank module and load driver module are located at the lower section of uplock respectively, are fixed on respectively by bearing on the table top of shake table；Lock ring module is used for the up and down motion for simulating lock ring under truth, and can realize the adjustment of lock ring lateral attitude；Load driver module is used to drive lock ring to move up and down, and loads service load to uplock by lock ring module；Crank module is located between lock ring module and load driver module, for by the motion of load driver module and load transmission to lock ring module.The present invention is used for the reliability test of uplock.
Description
Technical field
The present invention relates to the uplock reliability test that can realize the adjustment of lock ring lateral attitude, belong on air equipment
Position lock reliability test technical field.
Background technology
Uplock is the important spare part of aircraft, is not only present in undercarriage, undercarriage door, transporter back cargo hold door etc.
In traditional mechanism, exist in some novel mechanisms, such as F-35 lift fan hatch door mechanism, the goods of X-37B sky and space planes
Storehouse hatch door mechanism etc..Uplock is used to locking or unlocking all kinds of motions on aircraft, once failing, easily causes winged
Machine mission failure, in addition fatal crass major accident.Therefore, the reliability of uplock is the emphasis of airplane design personnel concern
Content.In order to assess the reliability index of aircraft uplock, exposure dominant failure mode and weak link, and realize reliability water
Flat raising, it is very necessary to carry out reliability test to uplock in laboratory environments.
In flight course, uplock use condition is severe, at the same bear random vibration, height epidemic disaster, lock ring load,
The comprehensive function of many factors such as hydraulic pressure.Therefore need experimental rig to simulate the motor function of uplock, to latch hook plus
Maneuvering load is carried, while having less volume, weight and larger rigidity, is tried so that the less integrated environment in space can be arranged on
In tryoff.In addition, lock ring lateral attitude is to influence one of key factor of the opening/closing lock function of uplock and reliability, it is necessary to
Manual control and the adjustment of lock ring lateral attitude are realized in process of the test.
Chinese patent《A kind of device for testing reliability of cabin door lock for aircrafts》, publication No. is 102530265, and《A kind of aircraft
Uplock reliability test》, publication No. is 104019983, respectively for hatch door rotating shaft and the perpendicular peace of latch hook rotating shaft
Capable situation proposes two kinds of experimental rigs, and it can not adjust the lateral attitude of lock ring.
Chinese patent《Vertical experimental rig for undercarriage hatch door uplock reliability test》, publication No. is
103983444, for trigger-type uplock provide a kind of experimental rig, it by the position of " front guide slot " and " rear guide groove " come
Adjustment and the lateral attitude of control lock ring.Chinese patent《Horizontal examination for undercarriage hatch door uplock reliability test
Experiment device》, publication No. is 103983443, and Chinese patent《A kind of improved aircraft landing gear cabin door lock experimental rig》, it is public
Cloth number is 105841951, in two kinds of experimental rigs, and lock ring lateral attitude is controlled and adjusted by the length of " rotating beam ".
The shared problem that above-mentioned five kinds of experimental rigs are present is：Integral rigidity is relatively low, can be produced seriously in the low frequency region of random vibration
Covibration, it is impossible to the random vibration power spectral density that uplock bears is within the defined limits of error.
The content of the invention
It is low the invention aims to solve existing aircraft uplock experimental rig integral rigidity, and lock ring can not be realized
The problem of lateral attitude is artificially adjusted can realize the uplock reliability test dress of lock ring lateral attitude adjustment there is provided a kind of
Put.
Of the present invention to realize the uplock reliability test of lock ring lateral attitude adjustment, it includes supporting table
Frame, it also includes lock ring module, crank module and load driver module；
Uplock is arranged on support stand, and lock ring module, crank module and load driver module are arranged at uplock
Lower section；
Support stand includes uplock installing plate, reinforcing plate and bottom plate, and uplock installing plate is vertically mounted on bottom plate, plus
Strong plate is fixedly connected on the side of uplock installing plate and is fixed on bottom plate；Uplock is arranged on uplock installing plate；
Lock ring module includes lock ring, rocking arm, lock ring adjusting rod, rocker arm support and connecting rod, and one end sets a pair of auricles,
Pinhole is set respectively on a pair of auricles, and lock ring is arranged between a pair of auricles by pin, and below uplock with it is upper
The position that the latch hook of position lock is adapted；The rocking arm other end is threaded hole, and the threaded one end of lock ring adjusting rod is arranged on rocking arm
Screwed hole in, the lock ring adjusting rod other end has oscillating bearing, and the oscillating bearing is fixed by rocker arm support；
Crank module includes crank, rotating shaft, No. two cranks and crank bearing, and rotating shaft level is arranged on crank bearing
On, the medial extremity of rotating shaft consolidates one end of a crank, is connected between the other end and lock ring of a crank by connecting rod；Rotating shaft
Outboard end consolidate No. two cranks one end；
Load driver module includes screw rod joint, screw rod, adjusting nut, spring, loading frame, pressurized strut, loading frame bearing
And linear slide bearing,
The two ends for loading frame set mounting hole, and for installing linear slide bearing, screw rod is slidably mounted on loading frame
Two linear slide bearings in, one end of screw rod, which is connected through a screw thread on screw rod joint, screw rod joint, sets two groups of mounting ears
Piece, one group of lug-mounted connects the other end of No. two cranks by pin；Another group of lug-mounted connects pressurized strut by pin
The end bar hole of pull bar；
Both sides set a pair of auricles respectively above and below the one end of loading frame away from screw rod joint, and a pair of auricles of upside are used to pacify
The outboard end of pressurized strut is filled, a pair of auricles of downside are used to connect loading frame bearing；Spring and adjusting nut are arranged on screw rod,
Positioned at the inside of loading frame.
Advantages of the present invention：The present invention, which is directed in aircraft uplock reliability test, to be needed to load vibration stress, and is simulated
Position lock moves the demand with the loading of lock ring load and proposed, sufficiently large and service life length with small volume, lightweight, rigidity
Advantage.The present invention can realize manual control and the adjustment of lock ring lateral attitude, so as to be conducive to studying lock ring in process of the test
Influence of the lateral attitude to uplock motor function and reliability.
The present invention includes support stand, lock ring module, crank module and load driver module, and uplock is test specimen, installs
On support stand.Lock ring module, crank module and load driver module are located at the lower section of uplock respectively, pass through bearing respectively
It is fixed on the table top of shake table.Lock ring module is used for the up and down motion for simulating lock ring under truth, and can realize that lock ring is horizontal
To the adjustment of position；Load driver module is used to drive lock ring to move up and down, and by lock ring module to uplock loading work
Load；Crank module is located between lock ring module and load driver module, for the motion of load driver module and load to be passed
It is delivered in lock ring module.
The present invention realizes manual control and the adjustment of lock ring lateral attitude by rocking arm and lock ring adjusting rod, and operate compared with
For convenience, it can be used to study influence of the lock ring lateral attitude to uplock motor function and reliability；Cathetus of the present invention is slided
The radial load that bearing is born is used to overcome the moment of torsion that pressurized strut pulling force produces screw rod, because the arm of force is shorter, linear slide
Radial load suffered by bearing is smaller, will not produce violent abrasion, and the service life of experimental rig is longer；After unlocking, in bullet
In the presence of spring force, the position that pressurized strut pull bar and lock ring are automatically reverted to before locking is not required to provide pressure to pressurized strut again,
Therefore the control system entirely tested is simplified.
Brief description of the drawings
Fig. 1 is three-dimensional installation diagram of the experimental rig of the present invention under uplock open mode；
Fig. 2 is three-dimensional installation diagram of the experimental rig when uplock is triggered；
Fig. 3 is three-dimensional installation diagram of the experimental rig under uplock closed mode；
Fig. 4 is the schematic perspective view that latch hook is installed on support stand；
Fig. 5 is the stereogram of lock ring module；
Fig. 6 is the stereogram of load driver module；
Fig. 7 is the stereogram for loading frame；
Fig. 8 is crank and the stereogram of rotating shaft；
Fig. 9 is the stereogram of rotating shaft.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1 to Fig. 9, lock can be realized described in present embodiment
The uplock reliability test of ring lateral attitude adjustment, it includes support stand, and it also includes lock ring module, crank module
With load driver module；
Uplock is arranged on support stand, and lock ring module, crank module and load driver module are arranged at uplock
Lower section；
Support stand includes uplock installing plate 1, reinforcing plate 2 and bottom plate 3, and uplock installing plate 1 is vertically mounted on bottom plate 3
On, reinforcing plate 2 is fixedly connected on the side of uplock installing plate 1 and is fixed on bottom plate 3；Uplock is pacified installed in uplock
Fill on plate 1；
Lock ring module includes lock ring 5, rocking arm 6, lock ring adjusting rod 7, rocker arm support 8 and connecting rod 9, and the one end of rocking arm 6 sets one
To auricle, pinhole is set respectively, lock ring 5 is arranged between a pair of auricles by pin on a pair of auricles, and positioned at uplock
The adaptable position of the latch hook 4 of lower section and uplock；The other end of rocking arm 6 is threaded hole, the threaded one end of lock ring adjusting rod 7
In the screwed hole of rocking arm 6, the other end of lock ring adjusting rod 7 has oscillating bearing, and the oscillating bearing is solid by rocker arm support 8
It is fixed；
Crank module includes a crank 10, rotating shaft 11, No. two cranks 12 and crank bearing 13, the installation of the level of rotating shaft 11
On crank bearing 13, the medial extremity of rotating shaft 11 consolidates one end of a crank 10, the other end and lock ring 5 of a crank 10 it
Between connected by connecting rod 9；The outboard end of rotating shaft 11 consolidates one end of No. two cranks 12；
Load driver module includes screw rod joint 14, screw rod 15, adjusting nut 16, spring 17, loading frame 18, pressurized strut
19th, loading frame bearing 20 and linear slide bearing 21,
The two ends for loading frame 18 set mounting hole, and for installing linear slide bearing 21, screw rod 15 is slidably mounted on
In two linear slide bearings 21 for loading frame 18, one end of screw rod 15 is connected through a screw thread screw rod joint 14, screw rod joint 14
Two groups of lug-mounteds of upper setting, one group of lug-mounted connects the other end of No. two cranks 12 by pin；Another group of lug-mounted
The end bar hole of the pull bar of pressurized strut 19 is connected by pin；
Both sides set a pair of auricles respectively above and below the one end of loading frame 18 away from screw rod joint 14, and a pair of auricles of upside are used
In the outboard end for installing pressurized strut 19, a pair of auricles of downside are used to connect loading frame bearing 20；Spring 17 and adjusting nut 16
On screw rod 15, positioned at the inside of loading frame 18.
In present embodiment, the bottom plate of support stand is located at foot, and horizontal positioned is provided with the spiral shell being connected with shake table
Keyhole.Uplock installing plate is fixedly arranged above bottom plate in a vertical manner, and is provided with uplock mounting hole.Reinforcing plate is with vertical side
Formula is fixedly arranged at the top of bottom plate, and is consolidated with uplock installing plate, and reinforcing plate 2 is carried out to the vertical stiffness of uplock installing plate 1
Strengthen.
Lock ring is arranged on rocking arm end by pin in lock ring module, below uplock.The root of rocking arm is provided with
Screwed hole.There is screw thread lock ring adjusting rod one end, in the screwed hole of rocking arm root, passes through precession or back-out lock ring adjusting rod
It can adjust the lateral attitude of lock ring.The lock ring adjusting rod other end by pin be arranged on rocker arm support on, make rocking arm can above and below
Swing.
Rotating shaft is arranged on crank bearing in a horizontal manner in crank module, and a crank and No. two cranks are fixedly arranged at respectively
The two ends of rotating shaft.To prevent movement interference, suitable angle is provided between a crank and No. two cranks.Connecting rod is arranged on lock
Between ring and a crank.
The loading frame of load driver module is cuboid frame-shaped construction, is vertically arranged with the through hole for installing screw rod,
Root is provided with two groups of auricles being connected with loading frame bearing and pressurized strut.Screw rod is arranged on loading frame, spring and regulation spiral shell
Mother is arranged on screw rod, positioned at loading inframe portion.Screw rod joint is fixedly arranged at screw rod end, is provided with and No. two cranks and pressurized strut
The pin of connection.There is bar hole the end of pressurized strut pull bar.
With reference to Fig. 1 to Fig. 4, uplock installing plate 1, reinforcing plate 2 and the bottom plate 3 in support stand are overall by aluminium alloy plate
Cutting is formed, and three is consolidated by way of welding.
Shown in Fig. 5, rocking arm 6 is formed by aluminium alloy plate overall processing, and end is provided with auricle and pin for installing lock ring 5
Sub-aperture, root is provided with the screwed hole for installing lock ring adjusting rod 7.Lock ring 5 is arranged on the auricle of rocking arm end by pin
It is interior, positioned at the lower section of latch hook 4.Lock ring adjusting rod 7 is externally threaded spherical plain bearing rod end, and threaded one end is arranged on rocking arm 6
In the screwed hole of root, the one end for having oscillating bearing is directly installed on the table top of shake table by rocker arm support 8, makes rocking arm can
To swing up and down.
In Fig. 6 and Fig. 7, loading frame 18 is formed by aluminium alloy overall processing.Linear slide bearing 21 is arranged on by bolt
Load the two ends of frame 18.Loading frame 18 is directly installed on the table top of shake table by loading frame bearing 20, and can be swung up and down.
Screw rod 15 is arranged in the hole of linear slide bearing 21, and freely slidable.Inside loading frame 18, spring 17 is located at close add
The side of frame bearing 20 is carried, the free end of spring 17 is adjusted by adjusting nut 16.
Embodiment two：Illustrate present embodiment with reference to Fig. 8 and Fig. 9, present embodiment is to embodiment one
It is described further, there is step at the two ends of rotating shaft 11, a crank 10 and No. two cranks 12 are connected to the low of the both sides of rotating shaft 11
At step, and it is locked by installing nut；A number crank 10 and No. two cranks 12 are consolidated by flat key or spline with rotating shaft 11.
Shown in Fig. 8 and Fig. 9, there is step at the two ends of rotating shaft 11, for installing outside a crank 10 and No. two cranks 12, step
There is screw thread side, for installing nut, so that two cranks are locked.Two cranks are consolidated by flat key or spline mode with rotating shaft 11
Knot.Rotating shaft 11 is arranged in the axis hole on crank bearing 13 in a horizontal manner.
Embodiment three：Illustrate present embodiment with reference to Fig. 8, present embodiment is made to embodiment one or two
Further illustrate, the angle between a crank 10 and No. two cranks 12 is 120 °.
To prevent that No. two cranks 12 are interfered with screw rod joint 14 in motion process, between a crank and No. two cranks
It is provided with 120 ° of angle.Connecting rod 9 is arranged between lock ring 5 and a crank 10.
This experimental rig is in process of the test in use, by precession or screwing out lock ring adjusting rod 7, you can adjustment and control
The radius that lock ring 5 is swung up and down, so as to adjust the lateral attitude of lock ring 5.During the adjustment of the lateral attitude of lock ring 5, due to lock ring
Adjusting rod 7 is connected by pin with rocker arm support 8, and the rotational angle of lock ring adjusting rod 7 should be 180 ° of integral multiple, therefore minimum
Adjust 1/2 pitch that step-length is lock ring adjusting rod 7.
Before on-test, the length of the pull bar of pressurized strut 19 is adjusted, when the pressurized strut 19 is retracted into extreme position, the energy of lock ring 5
Reach the position of triggering uplock.In fact, and need not very high degree of regulation, when pressurized strut 19 is retracted into extreme position
When, the position of lock ring 5 is also acceptable only slight beyond theoretical trigger position, such as more than 1mm, can't influence result of the test.
In addition, adjusting the position of adjusting nut 16 before on-test, make after uplock closing, the load that lock ring 5 is born is located at what is required
Within the limits of error.
The experimental rig operating process of the present invention is as follows：
Step 1：Before locking, latch hook 4 is located at open mode, and lock ring 5 is located at extreme lower position.
Step 2：During locking, uplock and the voltage supply simultaneously of pressurized strut 19, the pull bar of pressurized strut 19 are retracted and compression spring 17,
Drive lock ring 5 to move upwards by crank module simultaneously and hit latch hook 4.
Step 3：When pressurized strut 19 is retracted into extreme position, the triggering uplock of lock ring 5.
Step 4：After uplock is triggered, latch hook 4 is actively closed, while driving screw rod 15 by lock ring 5 and crank module
Retract, and continue compression spring 17.
Step 5：After uplock is closed, the pressure release of pressurized strut 19.
Step 6：During unlocking, uplock provides unlocking pressure and is opened to extreme position, screw rod 15 and the pull bar of pressurized strut 19
Stretched out under the driving of the elastic force of spring 17, while driving lock ring 5 to move to extreme lower position.
Claims (3)
1. a kind of can realize the uplock reliability test of lock ring lateral attitude adjustment, it includes support stand, its feature
It is, it also includes lock ring module, crank module and load driver module；
Uplock is arranged on support stand, and lock ring module, crank module and load driver module are arranged at the lower section of uplock；
Support stand includes uplock installing plate (1), reinforcing plate (2) and bottom plate (3), and uplock installing plate (1) is vertically mounted on
On bottom plate (3), reinforcing plate (2) is fixedly connected on the side of uplock installing plate (1) and is fixed on bottom plate (3)；Uplock
On uplock installing plate (1)；
Lock ring module includes lock ring (5), rocking arm (6), lock ring adjusting rod (7), rocker arm support (8) and connecting rod (9), rocking arm (6) one
End is set and sets pinhole on a pair of auricles, a pair of auricles respectively, and lock ring (5) is arranged between a pair of auricles by pin, and
The position adaptable with the latch hook (4) of uplock below uplock；Rocking arm (6) other end is threaded hole, lock ring regulation
Bar (7) threaded one end is arranged in the screwed hole of rocking arm (6), and lock ring adjusting rod (7) other end has oscillating bearing, the pass
Bearings are fixed by rocker arm support (8)；
Crank module includes a crank (10), rotating shaft (11), No. two cranks (12) and crank bearing (13), rotating shaft (11) level
Be arranged on crank bearing (13), the medial extremity of rotating shaft (11) consolidates one end of a crank (10), crank (10)
It is connected between the other end and lock ring (5) by connecting rod (9)；The outboard end of rotating shaft (11) consolidates one end of No. two cranks (12)；
Load driver module includes screw rod joint (14), screw rod (15), adjusting nut (16), spring (17), loading frame (18), work
Dynamic cylinder (19), loading frame bearing (20) and linear slide bearing (21),
The two ends for loading frame (18) set mounting hole, and for installing linear slide bearing (21), screw rod (15) is slidably installed
In two linear slide bearings (21) of loading frame (18), one end of screw rod (15) is connected through a screw thread screw rod joint (14),
Two groups of lug-mounteds are set on screw rod joint (14), and one group of lug-mounted connects the other end of No. two cranks (12) by pin；
Another group of lug-mounted connects the end bar hole of pressurized strut (19) pull bar by pin；
Both sides set a pair of auricles respectively above and below the one end of loading frame (18) away from screw rod joint (14), and a pair of auricles of upside are used
In the outboard end for installing pressurized strut (19), a pair of auricles of downside are used to connect loading frame bearing (20)；Spring (17) and regulation
Nut (16) is arranged on screw rod (15), positioned at the inside of loading frame (18).
2. according to claim 1 can realize the uplock reliability test of lock ring lateral attitude adjustment, its feature
It is, there is step at rotating shaft (11) two ends, a crank (10) and No. two cranks (12) are connected to the low of rotating shaft (11) both sides
At step, and it is locked by installing nut；A number crank (10) and No. two cranks (12) pass through flat key or spline and rotating shaft (11)
Consolidation.
3. according to claim 2 can realize the uplock reliability test of lock ring lateral attitude adjustment, its feature
It is, the angle between a crank (10) and No. two cranks (12) is 120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264899.1A CN107084834B (en) | 2017-04-21 | 2017-04-21 | It is able to achieve the uplock reliability test of lock ring lateral position adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264899.1A CN107084834B (en) | 2017-04-21 | 2017-04-21 | It is able to achieve the uplock reliability test of lock ring lateral position adjustment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107084834A true CN107084834A (en) | 2017-08-22 |
| CN107084834B CN107084834B (en) | 2019-03-26 |
Family
ID=59612319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710264899.1A Active CN107084834B (en) | 2017-04-21 | 2017-04-21 | It is able to achieve the uplock reliability test of lock ring lateral position adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107084834B (en) |
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| 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 |
| CN109969428A (en) * | 2019-02-28 | 2019-07-05 | 西安生淼机电科技有限责任公司 | A kind of aircraft nose landing gear uplock reliability and static strength/rigidity integrated experiment device and method |
| CN110763451B (en) * | 2019-11-15 | 2021-06-01 | 西北工业大学 | Cabin door lock reliability test device capable of controlling lock hook load and lock ring position |
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| US8763450B2 (en) * | 2010-12-02 | 2014-07-01 | Airbus Operations Gmbh | Locking fastening device, adjustable fastening device, component system, main wing of a wind tunnel model aircraft, and wind tunnel model aircraft having such a main wing |
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| 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 |
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| CN110763451B (en) * | 2019-11-15 | 2021-06-01 | 西北工业大学 | Cabin door lock reliability test device capable of controlling lock hook load and lock ring position |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107084834B (en) | 2019-03-26 |
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