CN112429268B - Aircraft electric connector contact reliability tester and detection method thereof - Google Patents
Aircraft electric connector contact reliability tester and detection method thereof Download PDFInfo
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- CN112429268B CN112429268B CN202011224811.1A CN202011224811A CN112429268B CN 112429268 B CN112429268 B CN 112429268B CN 202011224811 A CN202011224811 A CN 202011224811A CN 112429268 B CN112429268 B CN 112429268B
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- air
- air bag
- pressure value
- connecting column
- contact reliability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
Abstract
An aircraft electric connector contact reliability tester and a detection method thereof are provided, the aircraft electric connector contact reliability tester comprises: the connecting column is internally provided with at least two air ducts for air to pass through; shell fragment detection mechanism includes: the air bags are arranged on the connecting column, each air bag is of a strip-shaped structure extending along the length direction of the connecting column, and the number of the air bags is at least two and the air bags are arranged along the circumferential direction of the connecting column; each air passage is communicated with one air bag; the pressure detection mechanism is used for detecting the air pressure value of the air in the air bag; and the inflation and deflation mechanism is respectively communicated with each air passage and is used for inflating or deflating the air bag. The problem of among the prior art be used for detecting the tester of aircraft electric connector contact reliability can wear and tear electric jack to each shell fragment in the electric jack can't be tested alone, lead to electric jack's cost of maintenance high is solved.
Description
Technical Field
The invention relates to the technical field of electric connector detection, in particular to an aircraft electric connector contact reliability tester and a detection method thereof.
Background
The aircraft electric connector contact reliability tester is detection equipment for detecting the contact reliability of an aircraft electric jack. The aircraft electric connector comprises electric jack and contact pin, and the shell fragment in the electric jack of aircraft links to each other with the contact pin butt, and the contact pin makes the shell fragment take place to deform and is connected with the contact electricity, makes the electric connector circular telegram. Under the influence of long-time plugging, vibration or natural aging of the electric connector, the positive pressure of the electric jack is reduced, the contact area of the contact point is reduced, and the phenomenon of hole expansion is caused. Finally, the contact resistance is increased, the contact reliability of the plug is reduced, and serious potential safety hazards are caused.
In the prior art, a detection contact pin is adopted to replace a contact pin of an airplane electric connector so as to test the contact reliability of the electric connector. The detection contact pin is composed of detection pins with different diameters, and the detection pins with different diameters are sequentially inserted into the electric jack, so that the hole expansion degree of the electric jack is obtained. However, in the detection process of the detection pin in the prior art, the detection pin needs to be repeatedly inserted into and pulled out of the electrical jack to wear the electrical jack. Moreover, more seriously, because four elastic sheets in the electric jack of the airplane electric connector are mutually independent, the problems of poor contact, deformation and the like of one or more elastic sheets can occur in the using process, and the existing detection contact pin can not find out the specific elastic sheet to be replaced. When the existing detection contact pin detects the reaming problem of the airplane electrical jack, the whole airplane electrical jack needs to be directly replaced, and the airplane electrical jack is special in structure and high in price, so that the maintenance cost of the airplane electrical jack is invisibly increased.
Disclosure of Invention
The invention aims to provide a tester for testing the contact reliability of an aircraft electric connector and a detection method thereof, and solves the problems that in the prior art, the tester for testing the contact reliability of the aircraft electric connector can wear an electric jack, and each elastic sheet in the electric jack cannot be tested independently, so that the maintenance cost of the electric jack is high. Therefore, the invention provides an aircraft electric connector contact reliability tester, which comprises:
the connecting column is internally provided with at least two air ducts for air to pass through;
shell fragment detection mechanism includes: the air bags are arranged on the connecting columns, each air bag is of a strip-shaped structure extending along the length direction of the connecting column, and the number of the air bags is at least two and the air bags are arranged along the circumferential direction of the connecting column; each of the air passages is communicated with one of the air bags;
the pressure detection mechanism is used for detecting the air pressure value of the air in the air bag;
and the inflation and deflation mechanism is respectively communicated with each air passage and is used for inflating or deflating the air bag.
Optionally, the pressure detection mechanism is a pressure gauge respectively arranged on each air duct.
Optionally, the inflation and deflation mechanism comprises a plurality of inflation tubes which are independently arranged, and each inflation tube corresponds to one of the air passages on the connecting column.
Optionally, a strip-shaped groove for accommodating the airbag is formed in the connecting column in the length direction; and the air bag is embedded in the strip-shaped groove in the uninflated state of the air bag.
Optionally, the number of the air bags is four, and each air bag is arranged corresponding to one of the elastic pieces in the electrical jack.
Optionally, the aircraft electrical connector contact reliability tester further includes:
the air bag limiting stopper is arranged on the connecting column; the elastic piece detection mechanism is in a detection preparation state, the side part of the elastic piece is abutted to the air bag limiting stopper so as to limit the circumferential position of the connecting column, and the air bag is arranged opposite to the elastic piece.
Optionally, the air bag limit stopper is a baffle arranged along the length direction of the connecting column.
Optionally, a connecting column limiting stopper arranged opposite to the opening edge of the electrical jack is arranged in the circumferential direction of the connecting column, and the connecting column limiting stopper is used for limiting the depth of the connecting column entering the electrical jack.
Optionally, the method for detecting the aircraft electrical connector contact reliability tester includes the following steps:
s1, respectively filling equal amount of gas into each air bag through the inflation and deflation mechanism, wherein the air pressure in each air bag reaches a preset air pressure value; under the preset air pressure value, the air bag is abutted against the elastic sheet in the electric jack so as to push the elastic sheet to be in a power-on state;
s2, sequentially reducing the air pressure value in each air bag to obtain the triggering electrified air pressure value of the air bag corresponding to each elastic sheet in the electrified state when the airplane electric connector is in the electrified state;
s3, comparing the triggering electrified air pressure value of each air bag with a standard air pressure value, and if the triggering electrified air pressure value is smaller than the standard air pressure value, the elastic sheet corresponding to the air bag is unqualified;
and comparing the triggering electrified air pressure value of each air bag with a standard air pressure value, and if the triggering electrified air pressure value is greater than or equal to the standard air pressure value, the elastic sheet corresponding to the air bag is qualified.
The technical scheme of the invention has the following advantages:
1. the invention provides an aircraft electric connector contact reliability tester, which comprises: the connecting column is internally provided with at least two air ducts for air to pass through; shell fragment detection mechanism includes: the air bags are arranged on the connecting columns, each air bag is of a strip-shaped structure extending along the length direction of the connecting column, and the number of the air bags is at least two and the air bags are arranged along the circumferential direction of the connecting column; each of the air passages is communicated with one of the air bags; the pressure detection mechanism is used for detecting the air pressure value of the air in the air bag; and the inflation and deflation mechanism is respectively communicated with each air passage and is used for inflating or deflating the air bag.
Thereby adopt among the prior art to detect the "reaming" degree of needle by the hard material of multiple different diameters to measure electrical jack, thereby judge whether this electrical jack needs to be changed. However, since the detection pins in the prior art are made of hard materials, the elastic pieces of the electrical jacks can be worn by the detection pins which are repeatedly inserted and pulled out in the process of repeatedly inserting and pulling the detection pins with different diameters, and the service lives of the electrical jacks are affected. In this application, thereby adopt the inflation and deflation of gasbag to test the deformation ageing degree of shell fragment, above-mentioned gasbag is in the inflation state under the inflation state of inflating quantitative gas to whether test electrical jack is in the conducting state. Whereas in the present invention the diameter of the connecting post is smaller than the diameter of the electrical receptacle. When the air bag is in a deflation state, the air bag is not in contact with the elastic sheet, so that the connecting column does not damage the elastic sheet in the plugging and unplugging process.
In addition, the number of the air bags is at least two, each air bag is arranged corresponding to one of the elastic sheets, and each air bag is communicated with one independent air passage. And the inflation and deflation mechanism is respectively communicated with each air passage, so that unequal amounts of gas can be filled in each air bag. The pressure detection mechanism detects the air pressure value of the air in the air bag, and compares the detected air pressure value with a preset air pressure value of the elastic sheet which can be normally used. When the detected air pressure value is smaller than the preset air pressure value, the problem of aging deformation of the elastic sheet is proved, the elastic sheet can deform under the drive of smaller acting force, and the problem of hole expansion of the elastic sheet is proved. Through the mutually independent air bags and the pressure detection mechanism capable of respectively detecting each air bag, whether each elastic sheet has the 'reaming' problem can be effectively and respectively detected, so that the detection of a single elastic sheet can be realized, the whole electric jack does not need to be replaced after the problem is detected, and only the single elastic sheet of the electric jack needs to be replaced. Because the aircraft electric connector is high in production and manufacturing cost, the maintenance cost can be effectively reduced by replacing a single elastic sheet.
2. According to the aircraft electric connector contact reliability tester provided by the invention, the connecting column is provided with a strip-shaped groove used for accommodating the air bag in the length direction; and the air bag is embedded in the strip-shaped groove in the uninflated state of the air bag.
Through set up the bar recess on the spliced pole, the gasbag is accomodate under the uninflated state at this bar recess, can avoid the tester to take place the friction between plug in-process gasbag and shell fragment effectively to avoid the damage to the shell fragment in the testing process.
3. The invention provides an aircraft electric connector contact reliability tester, further comprising: the air bag limiting stopper is arranged on the connecting column; the elastic piece detection mechanism is in a detection preparation state, the side part of the elastic piece is abutted to the air bag limiting stopper so as to limit the circumferential position of the connecting column, and the air bag is arranged opposite to the elastic piece.
After the connecting column with the air bag limiting stopper is inserted into the electric jack, the connecting column can be rotated to enable the connecting column to rotate along the circumferential direction of the connecting column until the air bag limiting stopper is abutted to the elastic sheet. At the moment, the air bag is arranged opposite to the elastic sheet, so that the air bag can effectively detect whether the elastic sheet opposite to the air bag generates a hole expansion problem or not.
4. According to the aircraft electric connector contact reliability tester provided by the invention, the connecting column is provided with the connecting column limiting stopper which is arranged opposite to the opening edge of the electric jack in the circumferential direction, and the connecting column limiting stopper is used for limiting the depth of the connecting column entering the electric jack.
The connecting column can be limited to enter the electric jack by the connecting column limiting stopper, so that the air bag on the connecting column accurately corresponds to the elastic sheet.
5. The invention provides a detection method of a tester for the contact reliability of an aircraft electric connector, which comprises the following steps: s1, respectively filling equal amount of gas into each air bag through the inflation and deflation mechanism, wherein the air pressure in each air bag reaches a preset air pressure value; under the preset air pressure value, the air bag is abutted against the elastic sheet in the electric jack so as to push the elastic sheet to be in a power-on state; s2, sequentially reducing the air pressure value in each air bag to obtain the triggering electrified air pressure value of the air bag corresponding to each elastic sheet in the electrified state when the airplane electric connector is in the electrified state; s3, comparing the triggering electrified air pressure value of each air bag with a standard air pressure value, and if the triggering electrified air pressure value is smaller than the standard air pressure value, the elastic sheet corresponding to the air bag is unqualified; and comparing the triggering electrified air pressure value of each air bag with a standard air pressure value, and if the triggering electrified air pressure value is greater than or equal to the standard air pressure value, the elastic sheet corresponding to the air bag is qualified.
And (4) triggering the standard air pressure value of the air bag when the electric connector of the airplane is electrified under the condition that the elastic sheet is not loosened and deformed by pre-measurement. And measuring the triggering electrified air pressure value of each air bag by the detection method. Comparing the triggering electrified air pressure value of each air bag with a standard air pressure value, and if the triggering electrified air pressure value is greater than or equal to the standard air pressure value, the elastic sheet corresponding to the air bag is qualified; and if the triggering electrified air pressure value is smaller than the standard air pressure value, the elastic sheet corresponding to the air bag is unqualified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a product structure of an aircraft electrical connector contact reliability tester provided by the present invention;
FIG. 2 is a schematic structural view of an electrical jack according to the present invention;
FIG. 3 is a schematic structural view of an upper spring plate of the electrical jack according to the present invention;
FIG. 4 is a cross-sectional view of the internal structure of the connecting column according to the present invention;
fig. 5 is a schematic diagram of the mating and plugging between the contact reliability tester of the handheld aircraft electrical connector and the electrical jack provided by the invention.
Description of reference numerals:
1-connecting column; 2-an air duct; 3-air bag; 4-inflating and deflating mechanism; 5-an electrical jack; 6-a spring plate; 7-airbag limit stoppers; 8-connecting column limit stopper.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
An aircraft electrical connector contact reliability tester is described, as shown in fig. 1 to 4, comprising:
the gas distribution device comprises a connecting column 1, wherein air ducts 2 for gas to pass through are arranged in the connecting column 1, and the number of the air ducts 2 is 4; a strip-shaped groove for accommodating the air bag 3 is formed in the connecting column 1 in the length direction; the air bag 3 is embedded in the strip-shaped groove in the uninflated state of the air bag 3;
shell fragment detection mechanism includes: the air bags 3 are arranged on the connecting column 1, the air bags 3 are of strip-shaped structures extending along the length direction of the connecting column 1, and the number of the air bags 3 is 4, and the air bags are arranged along the circumferential direction of the connecting column 1; each of the air ducts 2 communicates with one of the air bags 3; each air bag 3 is arranged corresponding to one of the elastic sheets 6 in the electric jacks 5;
a pressure detection means for detecting a pressure value of the gas in the airbag 3; the pressure detection mechanism is a pressure gauge which is respectively arranged on each air duct 2;
and the inflation and deflation mechanism 4 is respectively communicated with each air passage 2 and is used for inflating or deflating the air bag 3. The inflation and deflation mechanism 4 comprises a plurality of inflation tubes which are independently arranged, and each inflation tube is correspondingly arranged with one of the air ducts 2 on the connecting column 1. Each inflation tube can realize independently controlled inflation and deflation;
the air bag limiting stopper 7 is arranged on the connecting column 1, and the air bag limiting stopper 7 is arranged on the connecting column 1; the elastic piece detection mechanism is in a detection preparation state, the side part of the elastic piece 6 is abutted against the air bag limiting stopper 7 so as to limit the circumferential position of the connecting column 1 and enable the air bag 3 to be arranged opposite to the elastic piece 6. The air bag limiting stopper 7 is a baffle arranged along the length direction of the connecting column 1;
and the connecting column limit stopper 8 is arranged in the circumferential direction of the connecting column 1 and is positioned at the edge of the opening of the electrical jack 5, and the connecting column limit stopper 8 is used for limiting the depth of the connecting column 1 entering the electrical jack 5.
The detection method of the aircraft electric connector contact reliability tester comprises the following steps:
s1, respectively filling equal amount of gas into each air bag 3 through the inflation and deflation mechanism 4, wherein the air pressure in each air bag 3 reaches a preset air pressure value; under the preset air pressure value, the air bag 3 is abutted with the elastic sheet 6 in the electric jack 5 so as to push the elastic sheet 6 to be in a power-on state;
s2, sequentially reducing the air pressure value in each air bag 3 to obtain the triggering electrified air pressure value of each air bag 3 corresponding to each elastic sheet 6 in the electrified state when the airplane electric connector is in the electrified state;
s3, comparing the triggering electrified air pressure value of each air bag 3 with a standard air pressure value, if the triggering electrified air pressure value is smaller than the standard air pressure value, the elastic sheet 6 corresponding to the air bag 3 is unqualified;
comparing the triggering electrified air pressure value of each air bag 3 with a standard air pressure value, and if the triggering electrified air pressure value is greater than or equal to the standard air pressure value, the elastic sheet 6 corresponding to the air bag 3 is qualified.
Example 2
The present embodiment is different from embodiment 1 in that the aircraft electrical connector contact reliability tester in the present embodiment is a handheld device, as shown in fig. 5.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. An aircraft electrical connector contact reliability tester, comprising:
the gas distribution device comprises a connecting column (1), wherein at least two gas passages (2) for gas to pass through are arranged in the connecting column (1), and the number of the gas passages (2) is at least two;
shell fragment detection mechanism includes: the air bags (3) are arranged on the connecting column (1), the air bags (3) are of strip-shaped structures extending along the length direction of the connecting column (1), and the number of the air bags (3) is at least two and the air bags are arranged along the circumferential direction of the connecting column (1); each of the air passages (2) is communicated with one of the air bags (3);
the pressure detection mechanism is used for detecting the air pressure value of the air in the air bag (3);
and the inflation and deflation mechanism (4) is respectively communicated with each air passage (2) and is used for inflating or deflating the air bag (3).
2. The aircraft electrical connector contact reliability tester according to claim 1, characterized in that the pressure detection mechanism is a pressure gauge respectively provided on each of the air ducts (2).
3. The aircraft electrical connector contact reliability tester according to claim 1, characterized in that the inflation and deflation mechanism (4) comprises a plurality of individually arranged inflation tubes, each of which is arranged in correspondence with one of the air ducts (2) on the connection post (1).
4. The aircraft electrical connector contact reliability tester according to claim 1, characterized in that the connection post (1) is provided with a strip-shaped groove in the length direction for accommodating the air bag (3); and the air bag (3) is embedded in the strip-shaped groove in the uninflated state of the air bag (3).
5. The aircraft electrical connector contact reliability tester of claim 1, wherein the number of the air bags (3) is four, and each air bag (3) is arranged corresponding to one of the elastic sheets (6) in the electrical jack (5).
6. The aircraft electrical connector contact reliability tester of claim 1, further comprising:
the air bag limiting stopper (7), the air bag limiting stopper (7) is arranged on the connecting column (1); the elastic piece detection mechanism is in a detection preparation state, the side part of the elastic piece (6) is abutted to the air bag limiting stopper (7) so as to limit the circumferential position of the connecting column (1) to enable the air bag (3) and the elastic piece (6) to be arranged oppositely.
7. The aircraft electrical connector contact reliability tester as claimed in claim 6, wherein the air bag limit stop (7) is a stop provided along the length direction of the connection post (1).
8. The aircraft electrical connector contact reliability tester according to claim 1, characterized in that the connection post (1) is provided with a connection post limit stopper (8) in a circumferential direction opposite to an opening edge of an electrical jack (5), the connection post limit stopper (8) being used to limit a depth of the connection post (1) into the electrical jack (5).
9. An aircraft electrical connector contact reliability tester testing method using the aircraft electrical connector contact reliability tester of any one of claims 1 to 8, comprising the steps of:
s1, respectively filling equal amount of gas into each air bag (3) through the inflation and deflation mechanism (4), wherein the air pressure in each air bag (3) reaches a preset air pressure value; under the preset air pressure value, the air bag (3) is abutted against the elastic sheet (6) in the electric jack (5) so as to push the elastic sheet (6) to be in a power-on state;
s2, sequentially reducing the air pressure value in each air bag (3) to obtain the triggering electrified air pressure value of each elastic sheet (6) and the corresponding air bag (3) when the airplane electric connector is in the electrified state;
s3, comparing the triggering electrified air pressure value of each air bag (3) with a standard air pressure value, and if the triggering electrified air pressure value is smaller than the standard air pressure value, the elastic sheet (6) corresponding to the air bag (3) is unqualified;
comparing the triggering electrification air pressure value of each air bag (3) with a standard air pressure value, and if the triggering electrification air pressure value is larger than or equal to the standard air pressure value, the elastic sheet (6) corresponding to the air bag (3) is qualified.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011224811.1A CN112429268B (en) | 2020-11-05 | 2020-11-05 | Aircraft electric connector contact reliability tester and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011224811.1A CN112429268B (en) | 2020-11-05 | 2020-11-05 | Aircraft electric connector contact reliability tester and detection method thereof |
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| CN112429268A CN112429268A (en) | 2021-03-02 |
| CN112429268B true CN112429268B (en) | 2021-05-25 |
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| CN108414726A (en) * | 2017-10-11 | 2018-08-17 | 同济大学 | A kind of vapour-pressure type load testing machine for cyclic annular tunnel-liner |
| CN208955368U (en) * | 2018-08-23 | 2019-06-07 | 国网天津市电力公司电力科学研究院 | A kind of patchcord for switchgear aviation plug loop-around test |
| CN212228556U (en) * | 2020-02-19 | 2020-12-25 | 中国铁路设计集团有限公司 | Electric-measuring pneumatic type side pressure test probe |
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2020
- 2020-11-05 CN CN202011224811.1A patent/CN112429268B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07190878A (en) * | 1993-12-27 | 1995-07-28 | Mitsubishi Heavy Ind Ltd | Flaw detection method of filter |
| CN203164441U (en) * | 2013-03-25 | 2013-08-28 | 长江岩土工程总公司(武汉)武汉分公司 | Portable air bag isolation drilling pressured water tester |
| CN203489849U (en) * | 2013-08-28 | 2014-03-19 | 宁波爱柯迪压铸有限公司 | Error proofing air pressure tester |
| CN108107285A (en) * | 2016-11-24 | 2018-06-01 | 中航贵州飞机有限责任公司 | A kind of Portable aircraft electrical malfunction somascope |
| CN107144471A (en) * | 2017-05-19 | 2017-09-08 | 山东大学 | A kind of pressure-bearing solution cavity Water hydraulic static pressure loading sealing device and method for model test |
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| CN112429268A (en) | 2021-03-02 |
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