CN209802663U - Testing device for ram air linear actuator cylinder - Google Patents
Testing device for ram air linear actuator cylinder Download PDFInfo
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- CN209802663U CN209802663U CN201920564372.5U CN201920564372U CN209802663U CN 209802663 U CN209802663 U CN 209802663U CN 201920564372 U CN201920564372 U CN 201920564372U CN 209802663 U CN209802663 U CN 209802663U
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- linear actuator
- ram air
- pressure sensor
- actuator cylinder
- tested
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- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 239000006247 magnetic powder Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 239000006249 magnetic particle Substances 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
the utility model discloses a testing device for a ram air linear actuator cylinder, which is connected with a ram air linear actuator cylinder to be tested, and the ram air linear actuator cylinder to be tested is connected with a fixed seat; the testing device comprises a computer, a magnetic powder brake, a gear, a rack and a tension and pressure sensor; the magnetic powder brake is connected with the gear, the gear is connected with the rack, the rack is connected with the pull pressure sensor, the pull pressure sensor is connected with the ram air linear actuator cylinder to be tested, and one end, far away from the pull pressure sensor, of the ram air linear actuator cylinder to be tested is connected with the fixed seat; the magnetic powder brake and the pull pressure sensor are both connected with the computer. The advantages are that: the function test of the linear actuating cylinder of the stamping air can be realized; meanwhile, the oil leakage phenomenon caused by adopting a hydraulic system as a power source can be fundamentally avoided; simple structure, easy operation, low maintenance cost.
Description
Technical Field
The utility model relates to an aircraft part maintenance field especially relates to a testing arrangement that is used for linear pressurized-air actuator cylinder.
Background
At present, most of special test structures for measuring the ram air linear actuator cylinder are OEM original factory equipment, the original factory equipment is complex in structure and high in price, and with the continuous increase of aviation operation cost and maintenance cost in recent years, all manufacturers develop part test equipment to reduce cost. At present, an OEM (original equipment manufacturer) device generally adopts a hydraulic system as a power source, the hydraulic system is used for measuring linear force and needs a plurality of sensors, the hydraulic system is high in control precision and high in required sensor precision, oil leakage phenomena occur frequently after the hydraulic system is used for a long time, and great pollution is caused to the environment and operators.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a testing arrangement for ram air linear actuator to solve the aforementioned problem that exists among the prior art.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
A testing device for a ram air linear actuator cylinder is connected with a ram air linear actuator cylinder to be tested, and the ram air linear actuator cylinder to be tested is connected with a fixed seat; the testing device comprises a computer, a magnetic powder brake, a gear, a rack and a tension and pressure sensor; the magnetic powder brake is connected with the gear, the gear is connected with the rack, the rack is connected with the pull pressure sensor, the pull pressure sensor is connected with the ram air linear actuator cylinder to be tested, and one end, far away from the pull pressure sensor, of the ram air linear actuator cylinder to be tested is connected with the fixed seat; the magnetic powder brake and the pull pressure sensor are both connected with the computer.
Preferably, a complete PID control algorithm is provided in the computer to introduce a correction force and to correct the preload force provided by the magnetic particle brake in combination with the actual loading force measured by the pull pressure sensor.
The utility model has the advantages that: 1. the hydraulic system can be avoided being adopted as a power source fundamentally, the control accuracy of the hydraulic system is high and the accuracy of the sensor is high when the hydraulic system is used, meanwhile, the oil leakage phenomenon caused by long-time use of the hydraulic system is avoided, and the tidiness of a test site and testers is guaranteed. 2. The testing device has the advantages of simple structure, convenient operation, reasonable price, safety, reliability and low maintenance cost. 3. The problems of expensive conventional OEM original factory equipment and large technical dependence are avoided.
Drawings
fig. 1 is a schematic diagram of a testing apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
As shown in fig. 1, the present invention provides a testing device for a ram air linear actuator, wherein the testing device is connected to a ram air linear actuator to be tested, and the ram air linear actuator to be tested is connected to a fixing base; the testing device comprises a computer, a magnetic powder brake, a gear, a rack and a tension and pressure sensor; the magnetic powder brake is connected with the gear, the gear is connected with the rack, the rack is connected with the pull pressure sensor, the pull pressure sensor is connected with the ram air linear actuator cylinder to be tested, and one end, far away from the pull pressure sensor, of the ram air linear actuator cylinder to be tested is connected with the fixed seat; the magnetic powder brake and the pull pressure sensor are both connected with the computer.
In the embodiment, one end of a tested product (ram air linear actuator cylinder) is connected to the fixing seat tool, the other end of the tested product is connected with the pull pressure sensor, the magnetic powder brake realizes stepless loading by adjusting exciting current in the product testing process, the stepless loading is transmitted to the gear through the output shaft, and the conversion from rotary torque to linear force is realized through the gear and rack mechanism, so that the passive loading of the linear actuator cylinder is provided. One end of the tension pressure sensor is connected with the rack, the other end of the tension pressure sensor is connected with a tested product (ram air linear actuator cylinder), stepless regulation is realized through the magnetic powder brake to set a pressure value, the requirement value of the tested product is met, and the pressure value is acquired and transmitted to the computer through data. The preloading force of the magnetic powder brake is adjusted at any time through the difference value between the pulling pressure value measured by the pulling pressure sensor and the required pulling pressure loading value.
In this embodiment, a complete PID control algorithm is provided in the computer to introduce a correction force, and the actual loading force measured by the pull pressure sensor is combined to correct the preload force provided by the magnetic particle brake. In fig. 1, F1 is the preloading force of the magnetic powder brake, which acts on the rack and pinion, and since the transmission mechanism will cause force consumption, F2 is the loading force after loss, which acts on the pull pressure sensor, and the pull pressure sensor measures the actual loading force F3, which acts on the measured object. In order to make F3 closer to the real required value, F4 correction force is introduced to continuously correct F1. The magnetic powder brake realizes stepless loading by adjusting exciting current, transmits the stepless loading to the gear through the output shaft, and realizes the conversion from rotary torque to linear force through the gear rack mechanism, so as to provide the passive loading of the linear actuator cylinder. The conversion relationship is as follows:
M＝F*R
Wherein: m is the loading moment (N.m) of the magnetic powder brake; f is the linear force (N) borne by the rack; and R is the reference circle diameter (m) of the gear.
In this embodiment, the function test of the linear actuator cylinder of the ram air can be realized by using the test device. Meanwhile, the hydraulic system can be fundamentally avoided being adopted as a power source, the problems that the control precision of the hydraulic system is high and the precision of a sensor is high when the hydraulic system is used are avoided, the oil leakage phenomenon caused by long-time use of the hydraulic system is avoided, and the cleanness of a test site and testers is guaranteed.
Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect:
The utility model provides a testing arrangement for ram air linear actuator cylinder, some technical defects of existing equipment have been solved, for example adopt the hydraulic source to provide the linear force control accuracy difficult and hydraulic equipment uses the phenomenon of oil leak after long-time, and traditional OEM original factory equipment is expensive, the technical dependence is big problem; meanwhile, the testing device has the advantages of simple structure, convenience in operation, reasonable price, safety, reliability and low maintenance cost.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (2)
1. a testing device for a ram air linear actuator cylinder is connected with a ram air linear actuator cylinder to be tested, and the ram air linear actuator cylinder to be tested is connected with a fixed seat; the method is characterized in that: the testing device comprises a computer, a magnetic powder brake, a gear, a rack and a tension and pressure sensor; the magnetic powder brake is connected with the gear, the gear is connected with the rack, the rack is connected with the pull pressure sensor, the pull pressure sensor is connected with the ram air linear actuator cylinder to be tested, and one end, far away from the pull pressure sensor, of the ram air linear actuator cylinder to be tested is connected with the fixed seat; the magnetic powder brake and the pull pressure sensor are both connected with the computer.
2. A test apparatus for a ram air linear actuator according to claim 1, wherein: and a complete PID control algorithm is arranged in the computer to introduce a correction force, and the actual loading force measured by the pull pressure sensor is combined to correct the preloading force provided by the magnetic powder brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920564372.5U CN209802663U (en) | 2019-04-24 | 2019-04-24 | Testing device for ram air linear actuator cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920564372.5U CN209802663U (en) | 2019-04-24 | 2019-04-24 | Testing device for ram air linear actuator cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209802663U true CN209802663U (en) | 2019-12-17 |
Family
ID=68830641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920564372.5U Active CN209802663U (en) | 2019-04-24 | 2019-04-24 | Testing device for ram air linear actuator cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209802663U (en) |
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2019
- 2019-04-24 CN CN201920564372.5U patent/CN209802663U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 101300, Beijing, Shunyi District Renhe Town Du Yang North Street, No. 1, 19, 4 Patentee after: Beijing andaville Intelligent Technology Co.,Ltd. Address before: 101300, Beijing, Shunyi District Renhe Town Du Yang North Street, No. 1, 19, 4 Patentee before: BEIJING ANDAWELL MEASUREMENT & CONTROL TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 101300 4th floor, building 1, No. 19, duyang North Street, Renhe Town, Shunyi District, Beijing Patentee after: Beijing Tianpu Situo Intelligent Technology Co.,Ltd. Address before: 101300 4th floor, building 1, No. 19, duyang North Street, Renhe Town, Shunyi District, Beijing Patentee before: Beijing andaville Intelligent Technology Co.,Ltd. |