CN109115486A - A kind of unmanned plane oleo-pneumatic shock absorber static pressure testing device - Google Patents
A kind of unmanned plane oleo-pneumatic shock absorber static pressure testing device Download PDFInfo
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- CN109115486A CN109115486A CN201811243634.4A CN201811243634A CN109115486A CN 109115486 A CN109115486 A CN 109115486A CN 201811243634 A CN201811243634 A CN 201811243634A CN 109115486 A CN109115486 A CN 109115486A
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- mounting base
- lead screw
- damper
- static pressure
- compression
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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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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of unmanned plane oleo-pneumatic shock absorber static pressure testing devices, are made of mounting base, lead screw transmission platform, servo motor, tension-compression sensor, displacement sensor and control computer, wherein damper is mounted between two mounting bases by connector.Control computer judges the working condition of damper according to the numerical value of tension-compression sensor, travel compression is issued to instruct and control servo motor compression shock absorption device on lead screw transmission platform, pressure sensor measures and feeds back to the compressing force of damper transmitting, judged and be adjusted after control computer acquisition, can efficient quick damper static pressure tested, after avoiding unmanned plane from repeatedly recycling landing, since shock absorber fluid gas leakage static pressure reduces, cause damper compression travel beyond tolerance zone.Test device structure is simple, easy to maintain, is conducive to field and implements operation, and measuring accuracy is high, and test result is easily read, and has stronger ambient adaptability and cheap use cost.
Description
Technical field
The present invention relates to static pressure test technical fields, specifically, being related to a kind of unmanned plane oleo-pneumatic shock absorber static pressure test
Device.
Background technique
The way of recycling of unmanned plane is broadly divided into running landing and parachuting is landed two kinds.Running landing to site requirements compared with
Height, simple and convenient in order to recycle to small and medium size unmanned aerial vehicles, energy when mostly using parachuting to recycle, and being landed by absorber
Amount.Aircraft fluid and compressed nitrogen are full of inside damper, the damping force and air compression by liquid oil stream through metering hole
Spring force absorbs energy.The size of static pressure is directly proportional to air spring force in air cavity, is to determine unmanned plane buffer of damper
The important parameter of energy.Thus after recycling use, user needs periodically to carry out static pressure test to damper, whether judges damper
In the use scope of safety.
User relies primarily on artificial experience and judges at present, judges pressure by the complexity of manual compression damper
Whether force value meets design requirement.This method is higher to the skill requirement of user, lacks quantitative criteria, and be easy to appear people
The case where to judge by accident, there are larger security risks；Simultaneously because lacking test data, also it is unfavorable for that follow-up maintenance is instructed to work.
And test method used by manufacturer relies on Large-scale professional test experimental bed and high precision measurement instrument, from use cost and just
Benefit consideration is unfavorable for delivering user's use.In the technical field, filled for parachuting unmanned plane oleo-pneumatic shock absorber static pressure test
It sets and method is not seen in document.
For this purpose, a kind of structure is simple, unmanned plane damper static pressure testing device easy to use there is an urgent need to developing, and mention
For a set of fast and simple test method and standardized testing process, quick, quantization damper can be tested, and referred to
Lead follow-up maintenance, maintenance work.
Summary of the invention
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of unmanned plane oleo-pneumatic shock absorber static pressure test dress
Set, the static pressure testing device can efficient quick damper static pressure is tested, after avoiding unmanned plane from repeatedly recycling landing, by
It is reduced in shock absorber fluid gas leakage, static pressure, causes damper compression travel beyond tolerance zone；Test device structure is simple, just
It is used in maintenance；Test method is conducive to field and implements operation.
The technical solution adopted by the present invention to solve the technical problems is: aobvious including platform support, guide rail, bolt, number
Show instrument, control computer, the first connector, pressure sensor, the first mounting base, connector, connecting pin, damper, the second connection
Part, tension-compression sensor, the second mounting base, digital display displacement sensor, handwheel and lead screw transmission platform, the lead screw transmission platform include electricity
Machine mounting plate, installation riser, lead screw mounting base, servo motor and lead screw, lead screw transmission platform are connected in platform support by bolt
Top side, the first mounting base are located at the inside of lead screw transmission platform, and the first mounting base is mounted on platform support by guide rail, silk
Thick stick transmission platform and the first mounting base are cooperatively connected by lead screw, and lead screw one end is connect with lead screw mounting base, installation riser, and lead screw is another
One end is connect with the first mounting base by the first connector, and pressure sensor is located in the first mounting base, and the second mounting base is fixed
It is located at the opposite one end of the first mounting base on platform support, damper subtracts between the first mounting base and the second mounting base
Shake device one end is connect by connector, connecting pin with the first mounting base, and the damper other end passes through the second connector and the second installation
Seat connection, and there are tension-compression sensor and digital display displacement sensor in the second mounting base front end, the servo motor is mounted on motor peace
In loading board, and coaxially it is connected with the turbine in lead screw mounting base, servo motor drives lead screw rotation, while pushing the first installation
Seat compression shock absorption device；The control computer and digital indicator are located at the end side of platform support, and connect with servo motor, number
Word display instrument is for showing test result；Its static pressure test method the following steps are included:
Step 1. clamping；To static pressure testing device rolling inspection, after checking test device, by unmanned plane damper to be tested
Both ends are connected with platform connector, and connect pressure sensor；
Step 2. pressurization；Control computer judges the working condition of damper according to the numerical value of tension-compression sensor, issues row
Journey compression instruction, is inwardly compressed piston lever of reducer, makes hydraulic pasta to end face, and the uncompressed part of piston rod is overhanging
Amount；Or hand wheel rotating lead screw is shaken, piston lever of reducer is inwardly compressed to pasta and end face in compression shock absorption device；
Step 3. measurement；Quiet last pressure value when maximum compressibility is measured according to pressure sensor, controls computer acquisition
After carry out judging whether damper static pressure numerical value meets Design permissible value；
Step 4. resets；After static pressure is completed in computer acquisition to be controlled, two end connection of damper of removing stage makeup and costume drives servo
Reset motor；
Step 5. adjustment；If quiet end pressure is unsatisfactory for requiring, by selecting reasonable oil-gas ratin to carry out test block
It adjusts, quiet end hypotony then increases overhang and adjusts oil and gas content, and quiet end hypertonia then reduces overhang and adjusts oil gas
Amount；
Step 6. record；Test is completed, and is recorded to test result, analyzing and processing data, and test report is formed.
Beneficial effect
A kind of unmanned plane oleo-pneumatic shock absorber static pressure testing device proposed by the present invention, by mounting base, lead screw transmission platform, servo
Motor, tension-compression sensor, displacement sensor and control computer composition, wherein damper is mounted on two peaces by connector
It fills between seat.Control computer judges the working condition of damper according to the numerical value of tension-compression sensor, issues travel compression instruction,
And servo motor compression shock absorption device on lead screw transmission platform is controlled, pressure sensor measures and feeds back to the compression of damper transmitting
Power is judged and is adjusted after controlling computer acquisition, can efficiently and rapidly tested damper static pressure, avoid nothing
After man-machine multiple recycling landing, since shock absorber fluid gas leakage, static pressure reduce, cause damper compression travel beyond model allowable
It encloses.The static pressure testing device structure is simple, is conducive to maintenance and uses；Test method is easy, is conducive to field and implements operation；Measuring accuracy
High and test result is easily read, and has extremely strong ambient adaptability and cheap use cost.
Unmanned plane oleo-pneumatic shock absorber static pressure testing device of the present invention, can efficient quick damper static pressure is tested,
Test method results are intuitive, and accurate judgement is difficult to when static pressure being avoided to reduce, and need to rely on experience and the case where human error occur.
Static pressure testing device can be applied to each stage of manufacture, test, maintenance and the maintenance of unmanned plane damper.By to unmanned plane
Whether multiple parachuting recycling or the accurate test of unconventional recycling rear shock absorber static pressure, can be with providing for accurate judgement damper
Foundation improves the service efficiency of unmanned plane equipment.Meanwhile by providing the dimension that specific information feedback is also subsequent damper
Shield maintenance provides accurate Informational support, reduces maintenance cost.
Detailed description of the invention
A kind of unmanned plane oleo-pneumatic shock absorber static pressure testing device of the present invention is made into one with embodiment with reference to the accompanying drawing
Step is described in detail.
Fig. 1 is unmanned plane oleo-pneumatic shock absorber static pressure testing device structural schematic diagram of the present invention.
Fig. 2 is simple type unmanned plane oleo-pneumatic shock absorber static pressure testing device structural schematic diagram.
Fig. 3 is unmanned plane damper static pressure test method flow diagram.
In figure:
1. 4. motor mounting plate of platform support 2. guide rail, 3. bolt, 5. digital indicator 6. controls computer 7. and installs
8. lead screw mounting base of vertical plate, 9. servo motor, 10. 11. first connector of lead screw, 12. pressure sensor, 13. first mounting base
14. 15. connecting pin of connector, 16. 17. second connector of damper, 18. 19. second mounting base of tension-compression sensor, 20. digital display
21. handwheel of displacement sensor
Specific embodiment
The present embodiment is a kind of unmanned plane oleo-pneumatic shock absorber static pressure testing device.
Refering to fig. 1~Fig. 3, the present embodiment unmanned plane oleo-pneumatic shock absorber static pressure testing device, by platform support 1, guide rail 2,
Bolt 3, digital indicator 5, control computer 6, the first connector 11, pressure sensor 12, the first mounting base 13, connector 14,
Connecting pin 15, damper 16, the second connector 17, tension-compression sensor 18, the second mounting base 19, digital display displacement sensor 20, hand
Wheel 21 and lead screw transmission platform composition；Wherein, lead screw transmission platform includes motor mounting plate 4, installation riser 7, lead screw mounting base 8, watches
Motor 9 and lead screw 10 are taken, lead screw transmission platform is fixedly connected on 1 top side of platform support, the first mounting base 13 by bolt 3
On the inside of lead screw transmission platform, the first mounting base 13 is mounted on platform support 1 by guide rail 2, lead screw transmission platform and the first installation
Seat 13 is cooperatively connected by lead screw 10.10 one end of lead screw is connect with lead screw mounting base 8, installation riser 7,10 other end of lead screw and
One mounting base 13 is connected by the first connector 11, and pressure sensor 12 is located in the first mounting base 13.Second mounting base 19 is solid
It is scheduled on platform support 1 and is located at the opposite one end of the first mounting base 13.Damper 16 is located at the first mounting base 13 and the second installation
Between seat 19,16 one end of damper is connect by connector 14, connecting pin 15 with the first mounting base 13, and 16 other end of damper passes through
Second connector 17 is connect with the second mounting base 19, and there are tension-compression sensor 18 and digital display displacement sensing in 19 front end of the second mounting base
Device 20.Servo motor 9 is mounted on motor mounting plate 4, and is coaxially connected with the turbine in lead screw mounting base 8, servo motor 9
It drives lead screw 10 to rotate, while pushing the first mounting base 13 to move along guide rail 2 and damper 16 is compressed.
In the present embodiment, control computer 6 is mounted on the end side of platform support 1, and and servo with digital indicator 5
Motor 9 connects.Digital indicator 5 is for showing test result.
In the present embodiment, static pressure test method the following steps are included:
1. clamping；Trial operation inspection is carried out to static pressure testing device, each connector answers non-loosening, and lead screw goes slick, inspection
After looking into test device, unmanned plane damper to be tested both ends are connected with platform connector, and connect pressure sensor.
2. pressurization；Control computer judges the working condition of damper according to the numerical value of range sensor, issues stroke pressure
Contracting instruction, is inwardly compressed piston lever of reducer, makes hydraulic pasta to end face, the uncompressed part of piston rod is as overhanging at this time
Amount；Or hand wheel rotating lead screw is shaken, piston lever of reducer is inwardly compressed to pasta and end face in compression shock absorption device.
3. measurement；Quiet last pressure value when maximum compressibility is measured according to pressure sensor, control computer acquisition is laggard
Row judges whether damper static pressure numerical value meets Design permissible value.
4. resetting；After static pressure is completed in computer acquisition to be controlled, two end connection of damper of removing stage makeup and costume drives servo motor
It resets.
5. adjustment；If quiet end pressure is unsatisfactory for requiring, by selecting reasonable oil-gas ratin that test block is adjusted,
Quiet end hypotony then increases overhang and adjusts oil and gas content, and quiet end hypertonia then reduces overhang and adjusts oil and gas content.
6. record；Test is completed, and is recorded to test result, analyzing and processing data.
7. forming test report.
Claims (1)
1. a kind of unmanned plane oleo-pneumatic shock absorber static pressure testing device, it is characterised in that: including platform support, guide rail, bolt, number
Display instrument, control computer, the first connector, pressure sensor, the first mounting base, connector, connecting pin, damper, second connect
Fitting, tension-compression sensor, the second mounting base, digital display displacement sensor, handwheel and lead screw transmission platform, the lead screw transmission platform include
Motor mounting plate, installation riser, lead screw mounting base, servo motor and lead screw, lead screw transmission platform are connected in platform branch by bolt
Frame top side, the first mounting base are located at the inside of lead screw transmission platform, and the first mounting base is mounted on platform support by guide rail,
Lead screw transmission platform and the first mounting base are cooperatively connected by lead screw, and lead screw one end is connect with lead screw mounting base, installation riser, lead screw
The other end is connect with the first mounting base by the first connector, and pressure sensor is located in the first mounting base, and the second mounting base is solid
Be scheduled on platform support and be located at the opposite one end of the first mounting base, damper between the first mounting base and the second mounting base,
Damper one end is connect by connector, connecting pin with the first mounting base, and the damper other end passes through the second connector and the second peace
Seat connection is filled, and there are tension-compression sensor and digital display displacement sensor in the second mounting base front end, the servo motor is mounted on motor
On mounting plate, and coaxially it is connected with the turbine in lead screw mounting base, servo motor drives lead screw rotation, while pushing the first peace
Fill seat compression shock absorption device；The control computer and digital indicator are located at the end side of platform support, and connect with servo motor,
Digital indicator is for showing test result；Its static pressure test method the following steps are included:
Step 1. clamping；To static pressure testing device rolling inspection, after checking test device, by unmanned plane damper to be tested both ends
It is connected with platform connector, and connects pressure sensor；
Step 2. pressurization；Control computer judges the working condition of damper according to the numerical value of tension-compression sensor, issues stroke pressure
Contracting instruction, is inwardly compressed piston lever of reducer, makes hydraulic pasta to end face, and the uncompressed part of piston rod is overhang；Or
Hand wheel rotating lead screw is shaken, piston lever of reducer is inwardly compressed to pasta and end face in compression shock absorption device；
Step 3. measurement；Quiet last pressure value when maximum compressibility is measured according to pressure sensor, control computer acquisition is laggard
Row judges whether damper static pressure numerical value meets Design permissible value；
Step 4. resets；After static pressure is completed in computer acquisition to be controlled, two end connection of damper of removing stage makeup and costume drives servo motor
It resets；
Step 5. adjustment；If quiet end pressure is unsatisfactory for requiring, by selecting reasonable oil-gas ratin that test block is adjusted,
Quiet end hypotony then increases overhang and adjusts oil and gas content, and quiet end hypertonia then reduces overhang and adjusts oil and gas content；
Step 6. record；Test is completed, and is recorded to test result, analyzing and processing data, and test report is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811243634.4A CN109115486B (en) | 2018-10-24 | 2018-10-24 | Unmanned aerial vehicle engine oil gas shock absorber static pressure testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811243634.4A CN109115486B (en) | 2018-10-24 | 2018-10-24 | Unmanned aerial vehicle engine oil gas shock absorber static pressure testing arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN109115486A true CN109115486A (en) | 2019-01-01 |
| CN109115486B CN109115486B (en) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811243634.4A Active CN109115486B (en) | 2018-10-24 | 2018-10-24 | Unmanned aerial vehicle engine oil gas shock absorber static pressure testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803315A (en) * | 2021-07-29 | 2021-12-17 | 武汉船用机械有限责任公司 | Oil cylinder testing device and testing method |
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| GB2104185A (en) * | 1981-07-02 | 1983-03-02 | Twyford Moors | Apparatus for testing shock absorbers |
| CN103217244A (en) * | 2013-03-26 | 2013-07-24 | 山东科技大学 | Shock absorber tension and pressure measuring instrument and detection method thereof |
| CN103630377A (en) * | 2013-12-16 | 2014-03-12 | 江苏科技大学 | Testing device for static load characteristics of shock absorber at rear part of motorcycle |
| CN204389150U (en) * | 2014-12-30 | 2015-06-10 | 广东西电动力科技股份有限公司 | A kind of vibroshock static properties testing table |
| CN206832445U (en) * | 2017-06-01 | 2018-01-02 | 西安工程大学 | A kind of monitoring platform of unmanned plane Sledge type damper |
| CN207964237U (en) * | 2018-03-22 | 2018-10-12 | 西安爱生技术集团公司 | A kind of parachuting unmanned plane damper apparatus for impact testing |
| CN108692928A (en) * | 2018-04-09 | 2018-10-23 | 张家港市欧微自动化研发有限公司 | A kind of damper detection method |
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2018
- 2018-10-24 CN CN201811243634.4A patent/CN109115486B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2104185A (en) * | 1981-07-02 | 1983-03-02 | Twyford Moors | Apparatus for testing shock absorbers |
| CN103217244A (en) * | 2013-03-26 | 2013-07-24 | 山东科技大学 | Shock absorber tension and pressure measuring instrument and detection method thereof |
| CN103630377A (en) * | 2013-12-16 | 2014-03-12 | 江苏科技大学 | Testing device for static load characteristics of shock absorber at rear part of motorcycle |
| CN204389150U (en) * | 2014-12-30 | 2015-06-10 | 广东西电动力科技股份有限公司 | A kind of vibroshock static properties testing table |
| CN206832445U (en) * | 2017-06-01 | 2018-01-02 | 西安工程大学 | A kind of monitoring platform of unmanned plane Sledge type damper |
| CN207964237U (en) * | 2018-03-22 | 2018-10-12 | 西安爱生技术集团公司 | A kind of parachuting unmanned plane damper apparatus for impact testing |
| CN108692928A (en) * | 2018-04-09 | 2018-10-23 | 张家港市欧微自动化研发有限公司 | A kind of damper detection method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803315A (en) * | 2021-07-29 | 2021-12-17 | 武汉船用机械有限责任公司 | Oil cylinder testing device and testing method |
| CN113803315B (en) * | 2021-07-29 | 2023-08-18 | 武汉船用机械有限责任公司 | Hydro-cylinder test device and test method |
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| CN109115486B (en) | 2023-10-17 |
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Effective date of registration: 20221020 Address after: No.34, Fenghui South Road, Xi'an, Shaanxi 710065 Applicant after: Xi'an Aisheng Technology Group Co.,Ltd. Address before: No.34, Fenghui South Road, Xi'an, Shaanxi 710065 Applicant before: XI'AN AISHENG TECHNOLOGY GROUP Co.,Ltd. Applicant before: Northwestern Polytechnical University |
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