CN112834196A - Intelligent testing system for actuating cylinder - Google Patents
Intelligent testing system for actuating cylinder Download PDFInfo
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- CN112834196A CN112834196A CN202110207956.9A CN202110207956A CN112834196A CN 112834196 A CN112834196 A CN 112834196A CN 202110207956 A CN202110207956 A CN 202110207956A CN 112834196 A CN112834196 A CN 112834196A
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- clutch
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- actuating cylinder
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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
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses an intelligent test system of an actuating cylinder, which comprises an actuating cylinder fixing seat, a toggle mechanism, a torque sensor, a coupler, a jaw clutch, a harmonic gear reducer, a motor, a bracket and a table board, wherein a test bench is vertically arranged for testing a product, so that additional torque added to the actuating cylinder of the product due to dead weight of a connecting plate in the toggle mechanism can be avoided; because the mounting surface of the table top of the test bed is separately processed and provided with the key groove, and each support arranged on the table top is also provided with the key groove, the requirements of the mounting planeness and the coaxiality are ensured, and the mounting is convenient for workers; the torque sensor is arranged close to one side of the product, and the measured torque value of the product actuating cylinder is more accurate because the additional friction torque value generated in the middle transmission link is reduced; whether the movable end and the fixed end of the jaw clutch are meshed or not is judged by installing a distance sensor, and the phenomenon of tooth slipping can be avoided in the process of torque transmission.
Description
Technical Field
The invention relates to the technical field of actuator cylinder performance testing, in particular to an actuator cylinder intelligent testing system.
Background
The actuator cylinder is a main component on an aircraft landing gear, a torsion spring (connected with an external deflector rod) is arranged in the actuator cylinder, and hydraulic oil is loaded through an oil nozzle to apply torque to the torsion spring, so that the energy storage effect is realized.
At present, a test bench of a test device for testing the relationship between the rotation angle and the torque of an actuator cylinder deflector rod (torsion spring) has certain defects:
1) the test bed is horizontally placed, and the toggle mechanism can generate additional gravity torque to the actuating cylinder;
2) the torque sensor is far away from the product actuating cylinder, and the measured actuating cylinder torque contains a transmission friction torque value in a transmission system;
3) the test bed table-board and the bracket are welded together, so that the table-board cannot be directly processed, and when each support is installed, a copper sheet and an additional processing mandrel are needed for installation, so that the coaxiality requirement is ensured;
4) the test bed uses a friction plate jaw clutch, and when large torque is transmitted, the test bed can slip.
Disclosure of Invention
The invention aims to provide an actuator cylinder intelligent test system to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an intelligent test system of an actuating cylinder, which comprises an actuating cylinder fixing seat, a toggle mechanism, a torque sensor, a coupler, a jaw clutch, a harmonic gear reducer, a motor, a support and a table board, wherein the table board is vertically arranged, the table board is supported by the support, the actuating cylinder fixing seat is fixed on the table board, the actuating cylinder is fixedly connected with the actuating cylinder fixing seat through a hanging point, and a shifting rod of the actuating cylinder is connected with the toggle mechanism; the motor is arranged at the bottom end of the table board through a motor support, the top of the motor is connected with the harmonic gear reducer, the harmonic gear reducer is arranged on the table board through a reducer support, the top of the harmonic gear reducer is connected with the jaw clutch through a coupling, the top of the jaw clutch is connected with a torque sensor through a coupler, the torque sensor is arranged on the table-board through a sensor support, the top of the torque sensor is connected with the toggle mechanism, the motor is decelerated by the harmonic gear reducer, torque is transmitted to the toggle mechanism through the jaw clutch, the coupler and the torque sensor, the toggle mechanism drives the toggle rod of the actuating cylinder to rotate, the toggle mechanism is provided with an acceleration electronic gyroscope angle sensor, the torque sensor is used for recording the horizontal rotation angle of the deflector rod, and the torque sensor is used for recording the torque of the deflector rod transmitted to the actuating cylinder.
Preferably, two ends of the outer cylinder wall of the actuator cylinder are respectively provided with a hanging point, and the hanging points are fixedly connected with the actuator cylinder fixing seat through a pin shaft.
Preferably, dial the mechanism and include the driver plate support, go up driver plate, link, lower driver plate and dial the support down, go up the driver plate support with the driver plate support is all installed down on the mesa, it installs through the pivot to go up the driver plate on the driver plate support, the driver plate is installed through the pivot down on the driver plate support, the link is the U type, the top and the bottom of link are connected respectively go up the driver plate with lower driver plate, the inboard of link sets up two connecting plates, two the connecting plate is dug and is cut the draw-in groove, two draw-in grooves respectively go into in the driving lever of actuator cylinder.
Preferably, the jaw clutch comprises a clutch moving end and a clutch fixed end which are arranged on a clutch central shaft, the clutch moving end is positioned at the top of the clutch fixed end, the clutch moving end is connected with a coupling at the top through a flange shaft, the flange shaft is arranged on the table top through a clutch upper support, the clutch central shaft at the bottom of the clutch fixed end is arranged on the table top through a clutch lower support, and the bottom of the clutch central shaft is connected with the coupling at the bottom; and a distance sensor is arranged on the upper support of the clutch, and a displacement check ring opposite to the distance sensor is arranged on the opposite movable end of the clutch.
Preferably, an inner ring bearing is arranged between the top end of the clutch central shaft and the inner ring of the flange shaft, the outer ring of the flange shaft is connected with the clutch upper support through an outer ring bearing, and the flange shaft is provided with a bearing retainer ring for limiting the outer ring bearing.
Preferably, a bearing is arranged between the clutch central shaft and the clutch lower support.
Preferably, the flange shaft is connected with the top portion through keys, the clutch central shaft is connected with the top portion through keys, and the top end of the flange shaft is connected with the clutch central shaft through keys.
Preferably, the table top and the supports are both provided with key mounting grooves, and the supports are positioned through the key table top.
Preferably, the coupler is a quincuncial coupler.
Compared with the prior art, the invention has the following beneficial technical effects:
1. according to the intelligent test system for the actuating cylinder, the test bed is vertically arranged to test a product, and additional torque added to the product actuating cylinder due to dead weight of the connecting plate in the toggle mechanism can be avoided.
2. According to the intelligent testing system for the actuating cylinder, the key groove is formed in the table board mounting surface of the test bed in a separately processed mode, and the key grooves are formed in the supports mounted on the table board, so that the requirements on mounting flatness and coaxiality are met, and the intelligent testing system is convenient for workers to mount.
3. According to the intelligent test system for the actuating cylinder, the torque sensor is arranged close to one side of a product, and the measured torque value of the actuating cylinder of the product is accurate because the additional friction torque value generated in the middle transmission link is reduced.
4. The intelligent test system for the actuating cylinder provided by the invention judges whether the movable end and the fixed end of the jaw clutch are meshed or not by installing the distance sensor, so that the phenomenon of tooth slipping can be avoided in the process of transmitting torque, and a smooth corner and torque relation graph is generated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of an intelligent test system for an actuator cylinder according to the present invention;
FIG. 2 is a schematic structural configuration of the actuator cylinder of the present invention;
FIG. 3 is a schematic view of the actuator cylinder fixing base according to the present invention;
FIG. 4 is a schematic structural view of the dial mechanism of the present invention;
FIG. 5 is a schematic structural view of the clutch of the present invention;
FIG. 6 is an assembly view of the motor mount and table of the present invention;
in the figure: 1-actuating cylinder fixing seat, 2-dial mechanism, 201-upper dial support, 202-upper dial, 203-connecting plate, 204-acceleration electronic gyroscope angle sensor, 205-lower dial, 206-lower dial support, 207-connecting plate, 3-torque sensor, 4-coupler, 5-clutch, 501-key, 502-bearing collar, 503-distance sensor, 504-displacement collar, 505-clutch moving end, 506-clutch fixed end, 507-key, 508-fixed end collar, 509-bearing, 510-key, 511-clutch lower support, 512-clutch central shaft, 513-screw, 514-clutch upper support, 515-outer ring bearing, 516-inner ring bearing, 517-flange shaft, 6-reducer support, 7-harmonic gear reducer, 8-motor support, 9-motor, 10-pin, 11-actuator cylinder, 111-outer cylinder, 112-hanging point, 113-deflector rod, 114-stop block, 115-oil nozzle, 12-sensor support, 13-support, 14-table top and 15-key.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The invention aims to provide an actuator cylinder intelligent test system to solve the problems in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The actuating cylinder intelligent test system in the embodiment is shown in fig. 1 and comprises an actuating cylinder fixing seat 1, a toggle mechanism 2, a torque sensor 3, a coupler 4, a jaw clutch 5, a harmonic gear reducer 7, a motor 9, a support 13 and a table top 14, wherein the table top 14 is vertically arranged, the table top 14 is supported by the support 13 and is fixed on the vertical end face of the support 13 through a bolt, the actuating cylinder fixing seat 1 is fixed on the table top 14, an actuating cylinder 11 is fixedly connected with the actuating cylinder fixing seat 1 through a hanging point 112, and a shifting rod 113 of the actuating cylinder 11 is connected with the toggle mechanism 2; the motor 9 is arranged at the bottom end of the table top 14 through a motor support 8, the top of the motor 9 is connected with a harmonic gear reducer 7, the harmonic gear reducer 7 is arranged on the table top 14 through a reducer support 6, the top of the harmonic gear reducer 7 is connected with a jaw clutch 5 through a coupler 4, the top of the jaw clutch 5 is connected with a torque sensor 3 through a coupler 4, and the coupler 4 is a plum coupling; the torque sensor 3 is installed on the table top 14 through a sensor support 12, the top of the torque sensor 3 is connected with the toggle mechanism 2, the motor 9 decelerates through the harmonic gear reducer 7, the torque is transmitted to the toggle mechanism 2 through the jaw clutch 5, the coupler 4 and the torque sensor 3, the toggle mechanism 2 drives the toggle rod 113 of the actuating cylinder 11 to rotate, the toggle mechanism 2 is provided with an acceleration electronic gyroscope angle sensor 204 for recording the horizontal rotation angle of the toggle rod 113, the torque sensor 3 is used for recording the torque of the toggle rod 113 (the toggle rod is connected with an internal torsion spring) transmitted to the actuating cylinder 11, and therefore the testing of different torsion angles and torque relations of the actuating cylinder 11 is achieved.
In this embodiment, as shown in fig. 2-4, the actuator cylinder 11 includes an outer cylinder 111, a nozzle 115 is disposed on the outer cylinder 111, hanging points 112 are respectively disposed at upper and lower ends of the outer cylinder wall, a shift lever 113 is disposed at a top end and a bottom end of the outer cylinder, a stopper 114 is disposed at a root of the shift lever 113, and the stopper 114 is used for limiting rotation of the shift lever 113; the hanging point 112 of the actuating cylinder 11 is fixedly connected with the actuating cylinder fixing seat 1 through a pin shaft, the deflector rod mechanism 2 enables a deflector rod 113 of the actuating cylinder 11 to rotate, and different torques can be generated by changing the rotating speed of a transmission shaft according to the relation that power P is torque multiplied by angular speed omega; the dial-up mechanism 2 comprises an upper dial plate support 201, an upper dial plate 202, a connecting frame 203, a lower dial plate 205 and a lower dial plate support 206, the upper dial plate support 201 and the lower dial plate support 206 are both installed on the table top 14, the upper dial plate 202 is installed at the bottom of the upper dial plate support 201 through a rotating shaft, the lower dial plate 205 is installed at the top of the lower dial plate support 206 through a rotating shaft, the connecting frame 203 is U-shaped, the top end and the bottom end of the connecting frame 203 are respectively connected with the upper dial plate 202 and the lower dial plate 205, two connecting plates 207 are arranged on the inner side of the connecting frame 203, the two connecting plates 207 are respectively connected with the top and the bottom of the actuating cylinder 11, and the acceleration.
In order to conveniently cut off and transmit torque, a jaw clutch is adopted, and compared with a friction clutch, the jaw clutch has the advantages of small volume, direct transmission torque and no slipping phenomenon. As shown in fig. 5, the jaw clutch 5 includes a clutch moving end 505 and a clutch fixed end 506 mounted on a central shaft of the clutch 5, the clutch moving end 505 is located on the top of the clutch fixed end 506, the clutch moving end is connected with a flange shaft 517 through a screw 513, the clutch moving end 505 is connected with the top coupling 4 through the flange shaft 517, a fixed end collar 508 is arranged at the bottom of the clutch fixed end 506, the flange shaft 517 is mounted on the table 14 through a clutch upper support 514, a clutch central shaft 512 at the bottom of the clutch fixed end 506 is mounted on the table 14 through a clutch lower support 511, and the bottom of the clutch central shaft 512 is connected with the bottom coupling 4; a distance sensor 503 is arranged on the clutch upper support 514, and a displacement retainer ring 504 opposite to the distance sensor 503 is arranged on the opposite clutch moving end 505; an inner ring bearing 516 is arranged between the top end of the clutch central shaft 512 and the inner ring of the flange shaft 517, the outer ring of the flange shaft 517 is connected with the clutch upper support 514 through the outer ring bearing 515, and the flange shaft 517 is provided with a bearing retainer ring 502 for limiting the outer ring bearing 515; a bearing 509 is arranged between the clutch central shaft 512 and the clutch lower support 511; the flange shaft 517 and the top coupling 4, the clutch center shaft 512 and the top coupling 4, and the clutch end 506 and the clutch center shaft 512 are connected by a key 501, a key 510, and a key 507, respectively.
The clutch moving end 505 and the clutch fixed end 506 of the jaw clutch 5 are coaxially mounted, and are mounted in the hole of the clutch upper support 514 by the inner ring bearing 516 and the outer ring bearing 515, so that the clutch moving end 505 and the clutch fixed end 506 can respectively rotate and do not interfere with each other before being meshed. However, since the dog clutch 5 is energized, the clutch moving end 505 and the clutch fixed end 506 are not necessarily exactly engaged with each other, so that the dog clutch moving end 505 is provided with the displacement retainer 504, and the support near the clutch moving end 505 is provided with the distance sensor 503 for detecting whether the clutch moving end 505 and the clutch fixed end 506 are engaged with each other. If the clutch is not meshed with the clutch, the distance sensor 503 has a large detection distance, the motor 9 needs to rotate a little angle, then the jaw clutch 5 is electrified to enable the clutch moving end 505 and the clutch fixed end 506 to be meshed with each other, and the motor 9 can normally rotate to transmit torque. Therefore, the phenomenon that the jaw clutch 5 is not normally meshed, and after the torque is increased, sliding teeth are generated to generate the phenomena of corner and torque curve jumping is avoided.
In the invention, a test bed table top 14 is separately processed, key installation grooves are processed on the table top 14 and each support (an upper dial support 201, a lower dial support 206, a torque sensor 3 support, a clutch 5 upper support, a clutch 5 lower support, a speed reducer support 6 and a motor support 8), and each support is positioned with the table top 14 through a key 15 (as shown in figure 6); and the table top 14 and each support are provided with key mounting grooves, so that when the table top is mounted, the table top 14 has good flatness and the coaxiality of mounting holes of each support is ensured. In particular, when the support is installed, a central shaft does not need to be additionally machined, the coaxiality requirement can be ensured only through the key groove, and the installation labor intensity is reduced.
The actuator cylinder intelligent test system is applied to the actuator cylinder test and has the following test process:
1. running-in test: after the actuator cylinder 11 is produced, a running-in test must be carried out, in which the components of the newly assembled actuator cylinder 11 are run in each other, for twenty consecutive load tests.
The first step is as follows: the industrial personal computer control software reads the running-in test parameters (test times, external loading speed and rotation angle).
The second step is that: according to the set running-in test parameters, the relay is controlled to be closed, the jaw clutch 5 is closed, a motor driver is initialized, the motor 9 is controlled to transmit the rotating torque according to the set loading speed, and the actuating cylinder 11 is slowly rotated to the set angle. (experimenters observe whether the actuator cylinder 11 has clamping stagnation and abnormal sound, if the experiment is stopped, the actuator cylinder 11 is overhauled)
The third step: when the cylinder rotates to a set angle and the torque is kept for 10 minutes, the industrial personal computer controls to slowly unload the external load, and the torque is reversely transmitted to enable the driving lever 113 of the actuating cylinder 11 to return to the initial position.
The fourth step: and if the test times are not finished, the step is shifted to the second step to continue the test.
2. The relationship between the external load and the rotation angle of the actuating cylinder 11 is measured: the experiment measures the relation curve of the actuating cylinder 11 and the rotation angle, and can see whether the actuating cylinder 11 meets the design requirement.
The first step is as follows: the industrial personal computer control software reads test parameters (test times, external loading speed and rotation angle) of the relation between the external load and the rotation angle of the measuring actuating cylinder 11.
The second step is that: according to the set test parameters, the relay is controlled to be closed, the jaw clutch 5 is closed, a driver of the motor 9 is initialized, the motor 9 is controlled to transmit the rotating torque according to the set loading speed, the actuating cylinder 11 is slowly rotated to the set angle, the torque value of the torque sensor 3 and the angle data of the acceleration electronic gyroscope angle sensor 204 are collected in real time, and a positive stroke relation curve is drawn in real time.
The third step: when the cylinder rotates to a set angle and the torque is kept for 10 minutes, the industrial personal computer controls to slowly unload the external load, and the torque is reversely transmitted to enable the driving lever 113 of the actuating cylinder 11 to return to the initial position. And collects the torque value of the torque sensor 3 and the angle data of the acceleration electronic gyroscope angle sensor 204 in real time, and draws a reverse stroke relation curve in real time.
The experimenter observes the curve of positive and negative strokes, the curve is in a smooth willow leaf shape, and if bulges and concave-convex shapes appear in the curve, the deformation fault of the coil spring in the actuating cylinder 11 is shown.
The fourth step: and if the test times are not finished, the step is shifted to the second step to continue the test.
The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (9)
1. An actuator cylinder intelligent test system which is characterized in that: the electric transmission mechanism comprises an actuating cylinder fixing seat, a toggle mechanism, a torque sensor, a coupler, a jaw clutch, a harmonic gear reducer, a motor, a support and a table board, wherein the table board is vertically arranged, the table board is supported by the support, the actuating cylinder fixing seat is fixed on the table board, an actuating cylinder is rotatably connected with the actuating cylinder fixing seat through a hanging point, and a toggle rod of the actuating cylinder is connected with the toggle mechanism; the motor is arranged at the bottom end of the table board through a motor support, the top of the motor is connected with the harmonic gear reducer, the harmonic gear reducer is arranged on the table board through a reducer support, the top of the harmonic gear reducer is connected with the jaw clutch through a coupling, the top of the jaw clutch is connected with a torque sensor through a coupler, the torque sensor is arranged on the table-board through a sensor support, the top of the torque sensor is connected with the toggle mechanism, the motor is decelerated by the harmonic gear reducer, torque is transmitted to the toggle mechanism through the jaw clutch, the coupler and the torque sensor, the toggle mechanism drives the toggle rod of the actuating cylinder to rotate, the toggle mechanism is provided with an acceleration electronic gyroscope angle sensor, the torque sensor is used for recording the horizontal rotation angle of the deflector rod, and the torque sensor is used for recording the torque of the deflector rod transmitted to the actuating cylinder.
2. The actuator cylinder intelligent test system of claim 1, wherein: and two ends of the outer cylinder wall of the actuating cylinder are respectively provided with a hanging point, and the hanging points are fixedly connected with the actuating cylinder fixing seat through a pin shaft.
3. The actuator cylinder intelligent test system of claim 1, wherein: dial the mechanism and include the driver plate support, go up the driver plate, link, lower driver plate and dial the support down, go up the driver plate support with the driver plate support is all installed down on the mesa, it installs through the pivot to go up the driver plate on the driver plate support, the driver plate is installed through the pivot down on the driver plate support, the link is the U type, the top and the bottom of link are connected respectively go up the driver plate with lower driver plate, the inboard of link sets up two connecting plates, two the connecting plate is dug and is cut there is the draw-in groove, two draw-in grooves respectively go into in the driving lever of actuator cylinder.
4. The actuator cylinder intelligent test system of claim 1, wherein: the jaw clutch comprises a clutch moving end and a clutch fixed end which are arranged on a clutch central shaft, the clutch moving end is positioned at the top of the clutch fixed end, the clutch moving end is connected with a coupler at the top through a flange shaft, the flange shaft is arranged on the table board through a clutch upper support, the clutch central shaft at the bottom of the clutch fixed end is arranged on the table board through a clutch lower support, and the bottom of the clutch central shaft is connected with a coupler at the bottom; and a distance sensor is arranged on the upper support of the clutch, and a displacement check ring opposite to the distance sensor is arranged on the opposite movable end of the clutch.
5. The actuator cylinder intelligent test system of claim 4, wherein: an inner ring bearing is arranged between the top end of the clutch center shaft and the inner ring of the flange shaft, the outer ring of the flange shaft is connected with the clutch upper support through an outer ring bearing, and a bearing clamping ring for limiting the outer ring bearing is arranged on the flange shaft.
6. The actuator cylinder intelligent test system of claim 4, wherein: and a bearing is arranged between the clutch central shaft and the clutch lower support.
7. The actuator cylinder intelligent test system of claim 4, wherein: the flange shaft and the top are connected through keys, the clutch center shaft and the top are connected through keys, and the clutch center shaft is connected between the couplers and the top.
8. The actuator cylinder intelligent test system of claim 1, wherein: the table top and the supports are all provided with key mounting grooves, and the supports are positioned through the key table top.
9. The actuator cylinder intelligent test system of claim 1, wherein: the coupler is a plum coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110207956.9A CN112834196A (en) | 2021-02-24 | 2021-02-24 | Intelligent testing system for actuating cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110207956.9A CN112834196A (en) | 2021-02-24 | 2021-02-24 | Intelligent testing system for actuating cylinder |
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| CN112834196A true CN112834196A (en) | 2021-05-25 |
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| CN202110207956.9A Pending CN112834196A (en) | 2021-02-24 | 2021-02-24 | Intelligent testing system for actuating cylinder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114509248A (en) * | 2021-12-31 | 2022-05-17 | 天津航天瑞莱科技有限公司 | Aircraft undercarriage pressurized strut test system |
| CN116296013A (en) * | 2023-05-16 | 2023-06-23 | 合肥中隐新材料有限公司 | Gyro moment detection device, detection system and detection method |
| CN117723286A (en) * | 2024-02-08 | 2024-03-19 | 天津航天瑞莱科技有限公司 | Rudder rotary actuator cylinder automatic rotation reliability evaluation test mechanism |
-
2021
- 2021-02-24 CN CN202110207956.9A patent/CN112834196A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114509248A (en) * | 2021-12-31 | 2022-05-17 | 天津航天瑞莱科技有限公司 | Aircraft undercarriage pressurized strut test system |
| CN116296013A (en) * | 2023-05-16 | 2023-06-23 | 合肥中隐新材料有限公司 | Gyro moment detection device, detection system and detection method |
| CN117723286A (en) * | 2024-02-08 | 2024-03-19 | 天津航天瑞莱科技有限公司 | Rudder rotary actuator cylinder automatic rotation reliability evaluation test mechanism |
| CN117723286B (en) * | 2024-02-08 | 2024-04-26 | 天津航天瑞莱科技有限公司 | Rudder rotary actuator cylinder automatic rotation reliability evaluation test mechanism |
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