Electrically-actuated front stay bar loading test device

Abstract

The invention provides an electrically-actuated front stay bar loading test device, and relates to the technical field of mechanical testing, and the device comprises a frame assembly which is used for fixing the loading test device; the power supply assembly is used for providing test power; the to-be-tested product fixing assembly is used for fixing a to-be-tested product; the torque transmission assembly is used for transmitting the test power to the to-be-tested product; the torque testing assembly is used for testing the torque loaded to the to-be-tested product; and the displacement testing assembly is used for testing the displacement of the tested product by testing the displacement of the rocker arm in the torque transmission assembly. According to the testing device, the rated load and static holding load test and the output rotation angle test of the electrically-actuated front supporting rod are realized by adopting a simple mechanical structure, the principle and the structure are simple, the manufacturing cost is low, and the torque can be applied or unloaded through a switch and a potentiometer on a motor control box when the testing device is used.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical testing, and in particular provides an electrically actuated front strut loading test device. Background Art

[0002] At present, there is an electrically actuated front strut structure that makes the front landing gear retracting and extending device rotate, driving the upper and lower struts to fold and extend, and then driving the front landing gear to retract and extend. Its structure and performance are different from those of the linear retracting and extending device. When other types of electrically actuated front struts are subjected to loading tests, the front landing gear retracting and extending device is tested separately from the upper and lower struts. For this type of electrically actuated front strut retracting and extending device, the upper and lower struts are used as a whole to simulate the stress conditions on the aircraft. Its loading test equipment structure and load application method are special, and existing equipment cannot meet its loading requirements.

[0003] Therefore, an electric front strut loading test device is proposed to test the loading performance of this type of electric front strut. Summary of the invention

[0004] The purpose of the present application is to solve the existing loading test problem of the electric front strut, and to be used for the rated load and static holding load test of the electric front strut and the output rotation angle test of the electric front strut.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: an electrically actuated front strut loading test device, the test device comprising:

[0006] A frame assembly, used to fix the loading test device;

[0007] A power supply assembly, mounted on the frame assembly, for providing test power;

[0008] A product fixing component to be tested, installed on the frame component, and used to fix the product to be tested;

[0009] A torque transmission component, connected to the power supply component and the product to be tested, and used to transmit the test power to the product to be tested;

[0010] A torque testing assembly, one end of which is connected to the power providing assembly via a first coupling, and the other end of which is connected to the torque transmitting assembly via a second coupling, for testing the torque applied to the product to be tested;

[0011] The displacement test assembly is connected to the torque transmission assembly and is used to test the displacement of the product under test by testing the displacement of the rocker arm in the torque transmission assembly.

[0012] The electrically-actuated front strut loading test device provided by the present invention also has the following technical features: the frame assembly includes a frame, a T-slot base plate arranged on the frame for installing the power supply assembly, the power supply assembly, the product to be tested fixing assembly, the torque transmission assembly, the torque test assembly and the displacement test assembly, and a small base plate fixed on the frame for assisting in installing the product to be tested fixing assembly.

[0013] The electrically-actuated front strut loading test device provided by the present invention also has the following technical features: the power supply assembly includes a reducer mounting frame fixed on the frame assembly, a reducer mounted on the reducer mounting frame, and a torque motor connected to the reducer and mounted on the frame assembly; the torque motor output shaft is connected to the reducer mounting interface, and the reducer output shaft is used to output power.

[0014] The electrically-actuated front strut loading test device provided by the present invention also has the following technical features: the product to be tested fixing assembly includes a first electrically-actuated front strut mounting bracket fixed on the frame assembly, a second electrically-actuated front strut mounting bracket, a joint bearing mounted on the first electrically-actuated front strut mounting bracket and the second electrically-actuated front strut mounting bracket for mounting the upper strut of the product to be tested, and a pin for connecting the lower strut of the product to be tested with the torque transmission assembly; the first electrically-actuated front strut mounting bracket and the second electrically-actuated front strut mounting bracket have the same structure; one side of the first electrically-actuated front strut mounting bracket is provided with a rolling bearing mounting hole for connecting to the torque transmission assembly via a rolling bearing, and the other side is provided with a joint bearing mounting hole for mounting a joint bearing; the bottom edge of the first electrically-actuated front strut mounting bracket is provided with an installation fixing hole for connecting and fixing to the T-slot bottom plate and the small bottom plate.

[0015] The electrically-actuated front strut loading test device provided by the present invention also has the following technical features: the torque transmission assembly includes an output shaft connected to the power providing assembly and an output rocker arm connected to the output shaft; one end of the output shaft is provided with a first flat key interface connected to the second coupling, a flange and a second flat key interface for connecting to the output rocker arm are provided in the middle, and the other end is connected to the displacement test assembly; the upper end of the output rocker arm is provided with a mechanical interface connected to the output shaft, and the lower end is provided with an interface connected to the lower strut of the product to be tested.

[0016] The electrically actuated front strut loading test device provided by the present invention also has the following technical features: the torque test assembly includes a torque sensor mounting bracket fixed on the frame assembly and a torque sensor mounted on the torque sensor mounting bracket.

[0017] The electrically-actuated front strut loading test device provided by the present invention also has the following technical feature: the displacement test assembly includes an angle encoder installed on the torque transmission assembly.

[0018] Beneficial Effects

[0019] The electric front strut loading test device proposed in the present invention adopts a simple mechanical structure to realize the rated load and static holding load test of the electric front strut and the output rotation angle test of the electric front strut. The principle and structure are simple and the manufacturing cost is low. When in use, the torque application or unloading can be completed through the switch and potentiometer on the motor control box. The load value applied to the electric front strut can be tested by reading the torque value display header. During the movement of the electric front strut, it is only necessary to read the angle display value to obtain its rotation angle value. The operation is simple and the test is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of the structure of the electrically actuated front support rod loading test device provided by the present invention;

[0022] Figure 2 A top view of an electric front strut loading test device provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of the framework provided by an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the structure of an electrically actuated support rod mounting bracket provided in an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the structure of an output rocker arm provided in an embodiment of the present invention;

[0026] Figure 6 for Figure 5 The cross-sectional view of the AA surface;

[0027] Figure 7 A schematic diagram of the structure of an output shaft provided by an embodiment of the present invention;

[0028] Figure 8 for Figure 7 Sectional view of the middle BB surface;

[0029] Fig. 9A schematic diagram of the structure of a first electrically actuated front support rod provided in an embodiment of the present invention;

[0030] Fig.10 A schematic diagram of the structure of a second electrically actuated front support rod provided in an embodiment of the present invention,

[0031] Among them, 1: frame; 2: T-slot bottom plate; 3: torque motor; 4: reducer; 5: reducer mounting frame; 6: first coupling; 7: torque sensor mounting frame; 8: torque sensor; 9: first electric front strut mounting bracket; 10: second coupling; 11: output shaft; 12: spherical bearing; 13: second electric front strut mounting bracket; 14: angle encoder; 15: output rocker arm; 16: pin; 17: small bottom plate; 18: electric front strut under test. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings and examples, but it should be noted that these implementation methods are not limitations of the present application, and equivalent changes or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these implementation methods are all within the scope of protection of the present application.

[0033] In the description of the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the creation of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the creation of the present application.

[0034] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0035] The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention of this application can be understood by specific circumstances.

[0036] like Figure 1-10 As shown, an embodiment of the present application provides an electrically actuated front strut loading test device, the test device comprising:

[0037] A frame assembly, used to fix the loading test device;

[0038] A power supply assembly, mounted on the frame assembly, for providing test power;

[0039] A product fixing component to be tested, installed on the frame component, and used to fix the product to be tested;

[0040] A torque transmission component, connected to the power supply component and the product to be tested, and used to transmit the test power to the product to be tested;

[0041] A torque testing assembly, one end of which is connected to the power providing assembly via a first coupling, and the other end of which is connected to the torque transmitting assembly via a second coupling, for testing the torque applied to the product to be tested;

[0042] The displacement test assembly is connected to the torque transmission assembly and is used to test the displacement of the product under test by testing the displacement of the rocker arm in the torque transmission assembly.

[0043] In some embodiments, the frame assembly includes a frame, a T-slot base plate arranged on the frame for mounting the power supply assembly, the power supply assembly, the product to be tested fixing assembly, the torque transmission assembly, the torque testing assembly and the displacement testing assembly, and a small base plate fixed on the frame for assisting in mounting the product to be tested fixing assembly.

[0044] In some embodiments, the power supply assembly includes a reducer mounting frame fixed on the frame assembly, a reducer mounted on the reducer mounting frame, and a torque motor connected to the reducer and mounted on the frame assembly, the torque motor output shaft is connected to the reducer mounting interface, and the reducer output shaft is used to output power.

[0045] In some embodiments, the product to be tested fixing assembly includes a first electrically actuated front strut mounting bracket fixed on the frame assembly, a second electrically actuated front strut mounting bracket, a spherical bearing mounted on the first electrically actuated front strut mounting bracket and the second electrically actuated front strut mounting bracket for mounting the upper strut of the product to be tested, and a pin for connecting the lower strut of the product to be tested with the torque transmission assembly. The first electrically actuated front strut mounting bracket and the second electrically actuated front strut mounting bracket have the same structure. A rolling bearing mounting hole for connecting to the torque transmission assembly via a rolling bearing is provided on one side of the first electrically actuated front strut mounting bracket, and a spherical bearing mounting hole for mounting a spherical bearing is provided on the other side. The bottom edge of the first electrically actuated front strut mounting bracket is provided with an installation fixing hole for connecting and fixing to the T-slot bottom plate and the small bottom plate.

[0046] In some embodiments, the torque transmission assembly includes an output shaft connected to the power providing assembly and an output rocker arm connected to the output shaft, one end of the output shaft is provided with a first flat key interface connected to the second coupling, the middle is provided with a flange and a second flat key interface for connecting to the output rocker arm, and the other end is connected to the displacement testing assembly, the upper end of the output rocker arm is provided with a mechanical interface connected to the output shaft, and the lower end is provided with an interface connected to the lower support rod of the product to be tested.

[0047] In some embodiments, the torque testing assembly includes a torque sensor mounting bracket fixed on a frame assembly and a torque sensor mounted on the torque sensor mounting bracket.

[0048] In some embodiments, the displacement testing assembly includes an angle encoder mounted on the torque transmission assembly.

[0049] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. An electrically actuated front strut loading test device, characterized in that: The testing device comprises: A frame assembly, used to fix the loading test device; A power supply assembly, mounted on the frame assembly, for providing test power; A product fixing component to be tested, installed on the frame component, and used to fix the product to be tested; A torque transmission component, connected to the power supply component and the product to be tested, and used to transmit the test power to the product to be tested; A torque testing assembly, one end of which is connected to the power providing assembly via a first coupling, and the other end of which is connected to the torque transmitting assembly via a second coupling, for testing the torque applied to the product to be tested; The displacement test assembly is connected to the torque transmission assembly and is used to test the displacement of the product under test by testing the displacement of the rocker arm in the torque transmission assembly.

2. The electrically actuated front strut loading test device according to claim 1, characterized in that: The frame assembly includes a frame, a T-slot base plate arranged on the frame for installing the power supply assembly, the power supply assembly, the product to be tested fixing assembly, the torque transmission assembly, the torque test assembly and the displacement test assembly, and a small base plate fixed on the frame for assisting in installing the product to be tested fixing assembly.

3. The electrically actuated front strut loading test device according to claim 1, characterized in that: The power supply assembly includes a reducer mounting frame fixed on the frame assembly, a reducer mounted on the reducer mounting frame, and a torque motor connected to the reducer and mounted on the frame assembly. The torque motor output shaft is connected to the reducer mounting interface, and the reducer output shaft is used to output power.

4. The electrically actuated front strut loading test device according to claim 1, characterized in that: The product to be tested fixing assembly includes a first electrically actuated front strut mounting bracket fixed on the frame assembly, a second electrically actuated front strut mounting bracket, a spherical bearing mounted on the first electrically actuated front strut mounting bracket and the second electrically actuated front strut mounting bracket for mounting the upper strut of the product to be tested, and a pin for connecting the lower strut of the product to be tested with the torque transmission assembly. The first electrically actuated front strut mounting bracket has the same structure as the second electrically actuated front strut mounting bracket. A rolling bearing mounting hole for connecting to the torque transmission assembly via a rolling bearing is provided on one side of the first electrically actuated front strut mounting bracket, and a spherical bearing mounting hole for mounting a spherical bearing is provided on the other side. The bottom edge of the first electrically actuated front strut mounting bracket is provided with an installation fixing hole for connecting and fixing to the T-slot bottom plate and the small bottom plate.

5. The electrically actuated front strut loading test device according to claim 1, characterized in that: The torque transmission assembly includes an output shaft connected to the power providing assembly and an output rocker arm connected to the output shaft, one end of the output shaft is provided with a first flat key interface connected to the second coupling, the middle is provided with a flange and a second flat key interface for connecting to the output rocker arm, and the other end is connected to the displacement testing assembly, the upper end of the output rocker arm is provided with a mechanical interface connected to the output shaft, and the lower end is provided with an interface connected to the lower support rod of the product to be tested.

6. The electrically actuated front strut loading test device according to claim 1, characterized in that: The torque testing assembly includes a torque sensor mounting bracket fixed on a frame assembly and a torque sensor mounted on the torque sensor mounting bracket.

7. The electrically actuated front strut loading test device according to claim 1, characterized in that: The displacement testing assembly includes an angle encoder mounted on the torque transmission assembly.

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