CN218937765U - Helicopter tail transmission system test device - Google Patents
Helicopter tail transmission system test device Download PDFInfo
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- CN218937765U CN218937765U CN202222985654.7U CN202222985654U CN218937765U CN 218937765 U CN218937765 U CN 218937765U CN 202222985654 U CN202222985654 U CN 202222985654U CN 218937765 U CN218937765 U CN 218937765U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The utility model belongs to the design of helicopter ground test equipment, and particularly relates to a helicopter tail transmission system test device. The device comprises a driving device, a test bed, a radial loading device and a loading device; the driving device is connected to the driving area of the test bed through a sliding rail, the radial loading device is mounted on the test piece mounting area of the test bed through a bolt connection, and the loading device is connected to the loading area of the test bed through a bolt connection. The test bed measurement and control equipment provides an installation space for the test bed measurement and control equipment, so that the cable length of a measurement and control system can be effectively shortened, and the attenuation of measurement and control signals can be reduced. The device is provided with the radial loading device at the flexible connection node support part of the test piece, and the installation support point of the test piece can be controlled to deviate to any appointed aspect so as to change the installation concentricity of the test piece and achieve the effect of simulating the elastic deformation of the tail section of the helicopter on the state of the test piece under the real working condition of the helicopter.
Description
Technical Field
The utility model belongs to the design of helicopter ground test equipment, and particularly relates to a helicopter tail transmission system test device.
Background
The tail transmission system of the helicopter with the single rotor wing and tail rotor configuration generally comprises a multi-section shaft, a middle speed reducer and a tail speed reducer, and has the advantages of larger transmission span, relatively smaller operating power occupation ratio and special assessment index, so that various assessment tests related to functions and performances are generally carried out independently of the main speed reducer. At present, the tail transmission system test bed mostly adopts an electric power closed dragging principle, and a driving motor and a loading motor are respectively arranged at the input end and the output end of the tail transmission system to provide power and load for a test piece. The transmission parts of the tail transmission system are generally connected by adopting flexible couplings to transmit torque, and a bearing support seat is designed at the shaft end of each section of shaft. As the shaft coupling between the transmission shafts is not used as an examination object of the system-level joint test, the transmission shaft support is installed in a structure form which is rigid and can not be dynamically adjusted, and related test functions are not arranged.
Disclosure of Invention
The novel helicopter tail transmission system test device is mainly added with a radial loading measurement and control function of a transmission shaft on the basis of a conventional tail transmission system test bed, can develop test tests aiming at the influence of technical states such as flexible coupling bending and torsion deformation of the tail transmission system, concentricity of the transmission shaft and the like on system performance, solves the problem that the conventional test bed lacks relevant test and examination, and enables the helicopter tail transmission system performance test to be more comprehensive and more sufficient. Meanwhile, a motion platform capable of switching stations is additionally arranged at the driving end of the tail transmission system, and the motion platform can be automatically switched to a functional simulation test state during the period of no running performance test.
Technical proposal
A helicopter tail transmission system test device comprises a driving device 1, a test bench 2, a radial loading device 4 and a loading device 5; the drive device 1 is connected to the drive region of the test stand 2 via a sliding rail, the radial loading device 4 is mounted to the test piece mounting region of the test stand 2 via a screw connection, and the loading device 5 is connected to the loading region of the test stand 2 via a screw connection.
The test bed 2 comprises a power platform 6, a tail transmission shaft platform 7, a tail reduction platform 8 and a torque loading platform 9; the power platform 6 is connected with the tail transmission shaft platform 7 through bolts, the tail transmission shaft platform 7 is connected with the tail reduction platform 8 through bolts, and the tail reduction platform 8 is connected with the torque loading platform 9 through bolts.
The radial loading device 4 comprises a radial loading platform 19, a radial loading mechanism support 20, a vertical actuator 21, a transverse actuator 22 and a radial loading mechanism 23; the vertical actuator 21 and the transverse actuator 22 are respectively connected with the radial loading mechanism support 20 through hinges, the vertical actuator 21 and the transverse actuator 22 are connected through a radial loading mechanism 23, the radial loading mechanism 23 is connected with the radial loading platform 19 through bolts, and the radial loading platform 19 is arranged on the radial loading mechanism support 20 through sliding tracks.
The driving device 1 comprises a driving motor 10, a hydraulic pump station 11, a moving guide rail 12, a hydraulic locking mechanism 13 and an electric screw rod mechanism 14; the driving motor 10 is installed on the moving guide rail 12 through a switching platform, the driving motor 10 can linearly move along the moving guide rail 12, the hydraulic locking mechanism 13 is installed at the joint of the driving motor 10 and the moving guide rail 12 through bolts, the electric screw mechanism 14 is installed on the switching platform of the driving motor 10, and the hydraulic pump station 11 is installed on the switching platform of the driving motor 10 through bolt connection.
Further, the loading device 5 comprises a torque loading motor 15, a torque sensor 16, a ball cage type coupling 17 and a flange shaft sleeve 18; the torque loading motor 15 is connected with the ball cage type coupling 17 through a bolt, the ball cage type coupling 17 is connected with the flange plate sleeve 18 through a bolt, and the torque sensor 16 is arranged at the output end of the rotating shaft of the torque loading motor 15 in a non-contact mode of electromagnetic induction.
Further, the driving device 1 realizes the switching of the stations of the driving motor 10, the switching is realized through an electric screw mechanism 14, and the position locking is realized through a hydraulic locking mechanism 13.
Further, the switching position accuracy is not lower than 0.01mm to ensure concentricity of the connection between the tail transmission system test piece 3 and the driving motor 10.
Further, the driving motor 10 determines the power according to the working condition requirement of the test piece 3.
Further, the locking force of the hydraulic locking mechanism 13 should ensure that the driving motor 10 does not shift due to vibration during operation.
Technical effects
The device provides an installation space for test bed measurement and control equipment by designing the equipment cabin below the test piece installation area on the test bed, so that the cable length of the measurement and control system can be effectively shortened and the attenuation of measurement and control signals can be reduced. The device is provided with the radial loading device at the flexible connection node support part of the test piece 3, and the installation support point of the test piece can be controlled to deviate to any appointed aspect so as to change the installation concentricity of the test piece, thereby simulating the influence of the elastic deformation of the tail section of the helicopter on the state of the test piece under the real working condition of the helicopter.
Drawings
FIG. 1 is a schematic illustration of the overall configuration and composition of a helicopter tail drive system test apparatus of the present utility model;
FIG. 2 is an isometric view of the test stand of the present utility model;
FIG. 3 is an isometric view of a power platform and drive arrangement of the present utility model;
FIG. 4 is an isometric view of the torque loading device of the present utility model;
FIG. 5a is an isometric view A of a drive shaft radial loading device of the present utility model;
fig. 5B is an isometric view B of the drive shaft radial loading device of the present utility model.
Detailed Description
The utility model is further described below with reference to examples. The following description is of some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The test bed appearance layout refers to the fuselage of the helicopter transmission platform, a multi-module splicing structure is adopted, a single module structure is formed by welding square steel pipes and steel plates of common carbon steel materials, and the overall rigidity is good. The upper plane of the rack is used for installing test pieces and serving as an operation platform, a detection datum point is designed, so that the precision of the platform and the deformation condition after long-time use are detected, and a cavity structure capable of installing test equipment and laying cables is arranged below the platform.
The driving device adopts an alternating current motor to provide rotation power and an auxiliary hydraulic system to provide locking force of the movement mechanism. The driving motor is connected with the tested piece by adopting a flexible diaphragm coupling, and a power platform provided with the driving motor is an electric screw driven platform capable of performing reciprocating linear motion, so that the power platform has two stations, and two working modes of a tail transmission system performance test and a full system operation function simulation test are provided.
The torque loading device adopts an alternating current motor to provide torque, the torque loading motor is connected with a tested piece through a ball cage type coupling, and larger concentricity deflection between the tested piece and the loading motor is allowed to occur, so that the test of the influence of the large-amplitude concentricity deflection of the tail transmission system is carried out.
The radial loading device of the transmission shaft is a device which is arranged at the mounting position of the bearing support of the transmission shaft according to the structural characteristics of the transmission shaft of the tail transmission system and can implement position offset control along the radial direction of the transmission shaft. The device designs a loading mechanism with two degrees of freedom of linear motion, and adopts a linear electric actuator to carry out motion driving, so that the motion speed and displacement can be accurately controlled. The loading mechanism is rigidly connected with the transmission shaft support through a switching base, and the bearing support can be controlled to move along any direction in the section of the transmission shaft.
The utility model adds the functional module for implementing concentricity offset control on the helicopter tail transmission system, and supplements and perfects the combined assessment test conditions of the helicopter transmission system.
The utility model can be effectively applied to the ground joint performance test of the tail transmission system of the helicopter.
The specific operation method for developing test application by using the helicopter tail transmission system test device provided by the utility model is as follows:
step one, starting a power supply of a helicopter tail transmission system test device, starting a measurement and control computer and starting measurement and control software;
step two, checking whether all equipment in an equipment cabin below the test bed 2 of the measurement and control software and control system is normally started;
step three, starting the hydraulic pump station 11, opening the hydraulic locking mechanism 13, starting the electric screw mechanism 14, switching the driving motor 10 to a working position, closing the hydraulic pump station 11, and recovering the locking state of the hydraulic locking mechanism 13;
step four, installing a test piece 3, adjusting concentricity between the test piece 3 and the tail reducer and driving motor 10, and completing connection between the test piece 3 and the loading end flange disc sleeve 18 and the ball cage type coupling 17, and completing connection between the test piece 3 and the driving motor 10;
step five, checking whether redundant objects exist around the test piece;
step six, starting the driving motor 10, setting the working rotating speed of the test piece, starting the torque loading motor 15 after the rotating speed is stable, and setting a torque value;
step seven, after the working rotating speed and torque of the test piece 3 are stable, starting the radial loading device 4, inputting instructions according to test requirements to control the vertical actuator 21 and the transverse actuator 22 to work, and realizing concentric deflection loading on the transmission shaft through the movement of the radial loading mechanism 23;
step eight, after the test is completed, the radial loading mechanism 23 is controlled to restore the initial position, and the torque loading motor 15 and the driving motor 10 are turned off.
Example 2
The helicopter tail transmission system test device comprises a driving device 1, a test bench 2, a radial loading device 4 and a loading device 5; the drive device 1 is connected to the drive region of the test stand 2 via a sliding rail, the radial loading device 4 is mounted to the test piece mounting region of the test stand 2 via a screw connection, and the loading device 5 is connected to the loading region of the test stand 2 via a screw connection.
The test bed 2 comprises a power platform 6, a tail transmission shaft platform 7, a tail reduction platform 8 and a torque loading platform 9; the power platform 6 is connected with the tail transmission shaft platform 7 through bolts, the tail transmission shaft platform 7 is connected with the tail reduction platform 8 through bolts, and the tail reduction platform 8 is connected with the torque loading platform 9 through bolts.
The radial loading device 4 comprises a radial loading platform 19, a radial loading mechanism support 20, a vertical actuator 21, a transverse actuator 22 and a radial loading mechanism 23; the vertical actuator 21 and the transverse actuator 22 are respectively connected with the radial loading mechanism support 20 through hinges, the vertical actuator 21 and the transverse actuator 22 are connected through a radial loading mechanism 23, the radial loading mechanism 23 is connected with the radial loading platform 19 through bolts, and the radial loading platform 19 is arranged on the radial loading mechanism support 20 through sliding tracks.
The driving device 1 comprises a driving motor 10, a hydraulic pump station 11, a moving guide rail 12, a hydraulic locking mechanism 13 and an electric screw rod mechanism 14; the driving motor 10 is installed on the moving guide rail 12 through a switching platform, the driving motor 10 can linearly move along the moving guide rail 12, the hydraulic locking mechanism 13 is installed at the joint of the driving motor 10 and the moving guide rail 12 through bolts, the electric screw mechanism 14 is installed on the switching platform of the driving motor 10, and the hydraulic pump station 11 is installed on the switching platform of the driving motor 10 through bolt connection.
Further, the loading device 5 comprises a torque loading motor 15, a torque sensor 16, a ball cage type coupling 17 and a flange shaft sleeve 18; the torque loading motor 15 is connected with the ball cage type coupling 17 through a bolt, the ball cage type coupling 17 is connected with the flange plate sleeve 18 through a bolt, and the torque sensor 16 is arranged at the output end of the rotating shaft of the torque loading motor 15 in a non-contact mode of electromagnetic induction.
Further, the driving device 1 realizes the switching of the stations of the driving motor 10, the switching is realized through an electric screw mechanism 14, and the position locking is realized through a hydraulic locking mechanism 13.
Further, the switching position accuracy is not lower than 0.01mm to ensure concentricity of the connection between the tail transmission system test piece 3 and the driving motor 10.
Further, the driving motor 10 determines the power according to the working condition requirement of the test piece 3 so as to meet the test requirement.
Further, the locking force of the hydraulic locking mechanism 13 should ensure that the driving motor 10 does not shift due to vibration during operation.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.
Claims (6)
1. The helicopter tail transmission system test device is characterized by comprising a driving device (1), a test bench (2), a radial loading device (4) and a loading device (5); the driving device (1) is connected to the driving area of the test bed (2) through a sliding track, the radial loading device (4) is mounted on the test piece mounting area of the test bed (2) through a bolt connection, and the loading device (5) is connected to the loading area of the test bed (2) through a bolt connection;
the test bed (2) comprises a power platform (6), a tail transmission shaft platform (7), a tail reduction platform (8) and a torque loading platform (9); the power platform (6) is connected with the tail transmission shaft platform (7) through bolts, the tail transmission shaft platform (7) is connected with the tail reduction platform (8) through bolts, and the tail reduction platform (8) is connected with the torque loading platform (9) through bolts;
the radial loading device (4) comprises a radial loading platform (19), a radial loading mechanism support (20), a vertical actuator (21), a transverse actuator (22) and a radial loading mechanism (23); the vertical actuator (21) and the transverse actuator (22) are respectively connected with the radial loading mechanism support (20) through hinges, the vertical actuator (21) is connected with the transverse actuator (22) through a radial loading mechanism (23), the radial loading mechanism (23) is connected with the radial loading platform (19) through bolts, and the radial loading platform (19) is arranged on the radial loading mechanism support (20) through a sliding rail;
the driving device (1) comprises a driving motor (10), a hydraulic pump station (11), a moving guide rail (12), a hydraulic locking mechanism (13) and an electric screw rod mechanism (14); the driving motor (10) is arranged on the moving guide rail (12) through the switching platform, the driving motor (10) can linearly move along the moving guide rail (12), the hydraulic locking mechanism (13) is arranged at the joint of the driving motor (10) and the moving guide rail (12) through bolts, the electric screw mechanism (14) is arranged on the switching platform of the driving motor (10), and the hydraulic pump station (11) is arranged on the switching platform of the driving motor (10) through bolt connection.
2. A helicopter tail transmission testing apparatus as claimed in claim 1 wherein the loading means (5) comprises a torque loading motor (15), a torque sensor (16), a ball and cage coupling (17), a stub shaft sleeve (18); the torque loading motor (15) is connected with the ball cage type coupling (17) through bolts, the ball cage type coupling (17) is connected with the flange disc shaft sleeve (18) through bolts, and the torque sensor (16) is arranged at the output end of the rotating shaft of the torque loading motor (15) in a non-contact mode of electromagnetic induction.
3. The helicopter tail transmission system test apparatus of claim 1, wherein the driving device (1) realizes the switching of the stations of the driving motor (10), the switching is realized through an electric screw mechanism (14), and the position locking is realized through a hydraulic locking mechanism (13).
4. A helicopter tail drive system testing apparatus as claimed in claim 3 wherein the switching position accuracy is not less than 0.01mm to ensure concentricity of the connection between the tail drive system test piece (3) and the drive motor (10).
5. A helicopter tail transmission testing apparatus as claimed in claim 1 wherein said drive motor (10) determines the power level based on the operating condition requirements of the test piece (3).
6. A helicopter tail transmission system testing apparatus as claimed in claim 1 wherein the locking force of said hydraulic locking mechanism (13) is such that the driving motor (10) is not displaced by vibration during operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222985654.7U CN218937765U (en) | 2022-11-10 | 2022-11-10 | Helicopter tail transmission system test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222985654.7U CN218937765U (en) | 2022-11-10 | 2022-11-10 | Helicopter tail transmission system test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218937765U true CN218937765U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222985654.7U Active CN218937765U (en) | 2022-11-10 | 2022-11-10 | Helicopter tail transmission system test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218937765U (en) |
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2022
- 2022-11-10 CN CN202222985654.7U patent/CN218937765U/en active Active
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