CN109100123B - Automatic testing device for durability of rotary quick-release lock - Google Patents
Automatic testing device for durability of rotary quick-release lock Download PDFInfo
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- CN109100123B CN109100123B CN201710473942.5A CN201710473942A CN109100123B CN 109100123 B CN109100123 B CN 109100123B CN 201710473942 A CN201710473942 A CN 201710473942A CN 109100123 B CN109100123 B CN 109100123B
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- connecting rod
- cam
- camshaft
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a rotary quick-release lock durability automatic testing device which mainly comprises a lock body, a motor, a connecting rod mechanism, a cam mechanism, a cross head connecting rod mechanism, a testing clamp and a counting device, wherein the motor is arranged on the lock body; the invention adopts the flange plate to connect the four-bar mechanism and the cam mechanism, the circular motion of the flange plate drives the upper lock body to carry out unlocking and locking of reciprocating rotation and linear motion, and the invention can truly and accurately simulate the process of screwing in and screwing out the lower lock body of the upper lock body of the 90-degree quick-release lock, thereby meeting the technical index of the reliability of the 90-degree quick-release lock of the existing domestic and foreign aircraft.
Description
Technical Field
The invention relates to the technical field of quick-release lock detection, in particular to a rotary automatic testing device for durability of a quick-release lock.
Background
With the development of aviation technology, the 90-degree quick-release lock with high reliability is widely applied to aircrafts nowadays, and the durability performance test of the 90-degree quick-release lock becomes an important index for evaluating the reliability of the series of products. However, for various reasons, the durability performance test of the domestic 90-degree quick-release lock (which is not interrupted in the continuous 5000-time test process) is mainly performed manually, so that the operation is complex, the time is long and the labor is consumed in the test process.
Because the lock is required to be pressed and counted during testing, and meanwhile, a certain load requirement is also required, the accuracy and stability of the testing frequency are difficult to control, and the testing method becomes a bottleneck of testing the durability performance of the quick-release lock.
Therefore, it is necessary to develop an automatic testing device for durability of rotary quick release locks.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a rotary quick-release lock durability automatic testing device which is used for controlling the stability and accuracy of testing frequency and relieving the labor intensity of operators, and the invention adopts the following technical scheme:
The invention relates to a rotary quick-release lock durability automatic testing device, which mainly comprises a lock body, a motor, a connecting rod mechanism, a cam mechanism, a cross head connecting rod mechanism, a testing fixture and a counting device, wherein the motor is arranged on the lock body; the lock body is fixed on the test fixture, the link mechanism is a four-bar mechanism comprising a large link and a small link which are mutually connected, the large link is installed and connected on a flange plate of the motor, the cam mechanism is provided with a cam shaft, an upper end face cam and a lower end face cam, the cam shaft is connected with the small link, the upper end face cam is fixed with the cam shaft, the lower end face cam is fixed with a cam shaft seat, the upper end face cam is provided with an upper end face cam shaft, the upper end face cam shaft is provided with a cross head of the cross head link mechanism, the counting device is connected with the flange plate, and the upper end face cam can float up and down along with the cam shaft under the action of a spring and the lower end face cam.
The further scheme is that the lock body is provided with a lock pin with a cross groove, and the lock pin is matched with a cross head of the upper end face cam.
The further scheme is that the flange plate circularly moves for one circle, and the counting device records the number of times of the circular movement to the setting of the counting device.
The further scheme is that the motion track of the small connecting rod rotates within a range of 90 degrees relative to the cam shaft, and the cam shaft drives the upper end face cam to rotate within a range of 90 degrees.
The four-bar linkage mechanism is characterized in that a large connecting bar drives a small connecting bar to do reciprocating linear motion.
The diameter of the flange plate is equal to the distance of the straight line of the small connecting rod.
According to the further scheme, the four-bar mechanism drives the two groups of test fixtures to perform rotary motion.
The counting device adopts an automatic grating counter to count.
Compared with the prior art, the invention has the beneficial effects that: the motor is used as a power supply for electric starting, an end face cam and a four-bar mechanism are combined with a pressure spring and a cross-shaped connecting rod mechanism, and the motor is rotated and driven to rotate by the four-bar mechanism to drive two groups of testing devices; the linear motion is realized through the rotation of the two groups of end face cams, so that the 90-degree lock can simulate the linear motion in the rotation process, the technical index of 90-degree quick-release lock reliability of the existing domestic and foreign aircraft is met, and the device has the characteristics of accurate and reliable cycle times, light weight, small volume, convenience in carrying, simplicity in operation and use, stability in action, low impact noise and the like.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an unlocked and locked configuration according to an embodiment of the present invention;
Fig. 3 is a schematic perspective view of an embodiment of the present invention.
Reference numerals
1. A motor; 2. a four bar linkage; 3, a step of; an end face convex mechanism 4; a crosshead link mechanism; 5. a counting device; 6. a flange plate; 7. a lock body; 8. a spring; 9. a test fixture; 201. a large connecting rod; 202. a small connecting rod; 301. an upper end surface cam; 302. a lower end cam; 401. a cross-head screwdriver; .
Detailed Description
In order to more fully understand the technical content of the present invention, the following technical solutions of the present invention will be further described and illustrated with reference to specific embodiments, but are not limited thereto.
As shown in fig. 1-3, in a first embodiment of the present invention, a rotary quick-release lock endurance automatic testing device mainly comprises a lock body 7, a motor 1, a link mechanism, a cam mechanism, a cross-head link mechanism 4, a testing fixture 9 and a counting device 5; the lock body 7 is fixed on the test fixture 9, the link mechanism is a four-link mechanism 2 which comprises a large link 201 and a small link 202 which are connected with each other, the large link 201 is installed and connected on a flange 6 of the motor 1, the cam mechanism is composed of a cam shaft, an upper end cam 301 and a lower end cam 302, the cam shaft is connected with the small link 202, the upper end cam 301 is fixed with the cam shaft, the lower end cam 302 is fixed with a cam shaft seat, the upper end cam 301 is provided with an upper end cam shaft, the upper end cam shaft is provided with a cross screw driver 401 of the cross head link mechanism 4, and the counting device 5 is connected with the flange 6.
The quick release lock is fixed on the test fixture 9, the four-bar mechanism 2 (composed of a left large bar 201, a right small bar 202 and a left large bar 201) is arranged on the flange 6 of the motor 11, and the large bar 201 is connected with the left small bar 202 and the right small bar 202 which are arranged on the cam shaft. Since the diameter of the flange 6 with the large connecting rod 201 is equal to the distance of the straight line of the small connecting rod 202, i.e. just equal to the angle by which the small connecting rod 202 rotates by 90 ° (1/4 circumference). While the small connecting rod 202 is connected with the cam shaft and drives the cam shaft to rotate 90 degrees. The upper end cam 301 is fixed to the cam shaft and floats up and down as the cam shaft acts on the spring 8 and the end face of the upper end cam 301. The lower face cam 302 is fixed on the cam shaft seat.
After the motor 1 is started, the flange 6 performs circular motion to drive the left and right large connecting rods 201 to perform circular motion around the motor 1 shaft, and the large connecting rods 201 drive the small connecting rods 202 to perform reciprocating linear motion, and as one end of each small connecting rod 202 is connected with the cam shaft, the motion track of each small connecting rod 202 can only rotate within a range of 90 degrees relative to the cam shaft. The cam shaft drives the upper end cam 301 (floating cam) to rotate within a range of 90 °. The floating cam can perform a linear action while rotating due to the action of the lower end cam 302 and the spring 8.
As shown in fig. 2, a is an unlocking state diagram, b is a locking state diagram, a cross-head screwdriver 401 arranged on an upper end face cam shaft is screwed to drive a locking pin with a cross groove on a 90-degree quick release locking upper lock body 7, and the locking pin drives the upper lock body 7 to perform reciprocating rotation and linear motion, namely unlocking and locking actions. The circumferential motion is converted into axial screwing-in and screwing-out, namely, the locking and opening of the upper lock body 7 are realized, the flange plate 6 moves circularly for one circle, meanwhile, the counting device 5 records once, the automatic grating counter is utilized for counting, and the cyclic motion is carried out for the set times of the counting device 5.
The movement trace of the small connecting rod 202 can only rotate within a range of 90 ° relative to the camshaft. The cam shaft drives the upper end cam 301 (floating cam) to rotate within a range of 90 °.
The actual installation and use states of the 1/4 rotary quick-release lock are simulated (90 degrees), and the requirements of different loads and action frequencies of the 1/4 rotary quick-release lock of the airplane are met.
The motor 1 is used as a power supply for electric starting, an end face cam and the four-bar mechanism 2 are combined with a pressure spring 8, and the motor 1 is rotated and drives two groups of test clamps 9 to rotate through the four-bar mechanism 2; and the linear motion is realized through the rotation of the two groups of end cams, so that the 90-degree lock can simulate the linear motion in the rotation process.
The testing device can realize the adjustment of the testing frequency according to the requirement of the product frequency by combining the mechanical technology and the electronic technology. The automatic test can be realized according to the opening and closing times required by the product, and the action state of the lock under the working load can be truly simulated. The 90-degree quick-release lock of the existing domestic and foreign aircraft is met, the authenticity and the reliability of test data are improved by electronic automatic counting, and the technical indexes of expanding various loads with different specifications are realized.
The flange 6 is connected with the four-bar mechanism 2 and the cam mechanism, and the circular motion of the flange 6 drives the upper lock body to perform unlocking and locking of reciprocating rotation and linear motion, so that the 90-degree quick-release lock body can be truly and accurately simulated in the process of screwing in and out the lower lock body, the technical index of 90-degree quick-release lock reliability of the existing domestic and foreign aircraft is met, and the invention has the characteristics of accurate and reliable cycle times, light weight, small volume, convenience in carrying, simplicity in operation and use, stable action, low impact noise and the like.
The foregoing examples are provided to further illustrate the technical contents of the present invention for the convenience of the reader, but are not intended to limit the embodiments of the present invention thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.
Claims (3)
1. The utility model provides a rotatory quick release lock durability automatic testing arrangement which characterized in that: the device mainly comprises a lock body, a motor, a connecting rod mechanism, a cam mechanism, a cross head connecting rod mechanism, a test fixture and a counting device; the lock body is fixed on the test fixture, the link mechanism is four link mechanism including big connecting rod and little connecting rod interconnect, big connecting rod installation is connected on the ring flange of motor, cam mechanism is equipped with camshaft, up end cam and lower end cam and constitutes, the camshaft is connected with little connecting rod, up end cam is fixed with the camshaft, lower end cam is fixed with the camshaft seat, up end cam is equipped with the up end camshaft, the cross head of cross head link mechanism is installed to the up end camshaft, counting assembly flange dish, up end cam can float from top to bottom along with the camshaft under the effect of spring and lower end cam, the locking nail that has the cross groove on the lock body cooperates with the cross head of up end cam, ring flange circular motion round, counter device record is once simultaneously, cyclic motion to counter device sets up the number of times, the motion track of little connecting rod is for the rotation in the camshaft 90 scope, then the camshaft drives up end cam and carries out 90 in-range rotation, ring flange diameter equals the distance of little straight line link mechanism, two sets of rotation of test fixture drive link.
2. The automatic test equipment for durability of rotary quick release lock according to claim 1, wherein: the large connecting rod in the four-connecting rod mechanism drives the small connecting rod to do reciprocating linear motion.
3. The automatic test equipment for durability of rotary quick release lock according to claim 1, wherein: the counting device adopts an automatic grating counter to count.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710473942.5A CN109100123B (en) | 2017-06-21 | 2017-06-21 | Automatic testing device for durability of rotary quick-release lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710473942.5A CN109100123B (en) | 2017-06-21 | 2017-06-21 | Automatic testing device for durability of rotary quick-release lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109100123A CN109100123A (en) | 2018-12-28 |
| CN109100123B true CN109100123B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710473942.5A Active CN109100123B (en) | 2017-06-21 | 2017-06-21 | Automatic testing device for durability of rotary quick-release lock |
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| CN (1) | CN109100123B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982501A (en) * | 2020-08-31 | 2020-11-24 | 湖南埃贝赫净化科技有限公司 | Altitude valve endurance test rack |
| CN114112272B (en) * | 2021-12-06 | 2024-04-05 | 信阳星宇航天标准件制造有限公司 | Vibration test tool for quick-release lock of sealing pin and mounting method of vibration test tool |
Citations (5)
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| CN103150939A (en) * | 2013-03-01 | 2013-06-12 | 北京交通大学 | Redundant-drive six-freedom-degree motion simulator |
| CN104344950A (en) * | 2014-10-17 | 2015-02-11 | 中国航空综合技术研究所 | Small-size force bearing fast dismounting lock service life detection device |
| CN104506232A (en) * | 2014-12-15 | 2015-04-08 | 上海交通大学 | Band service optical fiber low-frequency modulation generation device on basis of macrobend loss |
| CN204903152U (en) * | 2015-08-18 | 2015-12-23 | 浙江国检检测技术有限公司 | A test structure that is used for aircraft quick -release lock durability and static test device |
| CN207036398U (en) * | 2017-06-21 | 2018-02-23 | 辽宁美托科技股份有限公司 | A kind of rotary quick-detachable lock durability automatic testing equipment |
-
2017
- 2017-06-21 CN CN201710473942.5A patent/CN109100123B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103150939A (en) * | 2013-03-01 | 2013-06-12 | 北京交通大学 | Redundant-drive six-freedom-degree motion simulator |
| CN104344950A (en) * | 2014-10-17 | 2015-02-11 | 中国航空综合技术研究所 | Small-size force bearing fast dismounting lock service life detection device |
| CN104506232A (en) * | 2014-12-15 | 2015-04-08 | 上海交通大学 | Band service optical fiber low-frequency modulation generation device on basis of macrobend loss |
| CN204903152U (en) * | 2015-08-18 | 2015-12-23 | 浙江国检检测技术有限公司 | A test structure that is used for aircraft quick -release lock durability and static test device |
| CN207036398U (en) * | 2017-06-21 | 2018-02-23 | 辽宁美托科技股份有限公司 | A kind of rotary quick-detachable lock durability automatic testing equipment |
Non-Patent Citations (1)
| Title |
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| 一种飞机快卸锁耐久性试验的装置设计;孙国峰;李东敏;任鹏波;张弦;顾鸣界;;中国新技术新产品(第23期);41-42 * |
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