A variable load adjustment mechanism test device

Abstract

The application discloses a variable load adjusting mechanism test device, which comprises a base (11a), wherein the base (11a) is provided with an adjusting support (10a), the adjusting support (10a) is provided with a mounting rack (9a) for mounting a test product, the front side of the mounting rack (9a) is provided with a hydraulic oil tank (6a), one side of the hydraulic oil tank (6a) is provided with a fuel supply main pipeline, the fuel supply main pipeline is provided with an electric pump (4a) for controlling the outward delivery of oil, the rear side of the fuel supply main pipeline is provided with two groups of fuel supply branch pipes, one group of the fuel supply branch pipes is connected with a left hydraulic oil cylinder (2a) arranged on the left side of the mounting rack (9a), the other group of the fuel supply branch pipes is connected with a right hydraulic oil cylinder (7a) arranged on the right side of the mounting rack (9a), and the fuel supply branch pipes are provided with a pressure regulating valve group (3a) and a control valve group (5a) for adjusting and controlling the left hydraulic oil cylinder (2a) and the right hydraulic oil cylinder (7a). The variable load adjusting mechanism test device can effectively improve the test effect of an airplane wing.

Description

Technical Field

[0001] This invention relates to an experimental device for adjusting the load on an aircraft wing, and more particularly to an experimental device for a variable load adjustment mechanism. Background Technology

[0002] During flight, the actual rotation of the aircraft wing bears a huge load, and the load is constantly changing depending on the operating state. The actuator may bear tension in one flight attitude and pressure in another. The existing equipment test bench has a relatively simple load and cannot fully simulate the various complex working conditions and load changes during the rotation of the aircraft wing, resulting in poor experimental results for the wing. Summary of the Invention

[0003] The purpose of this invention is to provide a test device for a variable load adjustment mechanism. It can effectively improve the testing results of aircraft wings.

[0004] The technical solution of the present invention: A test device for a variable load adjustment mechanism includes a base, an adjustment support on the base, a mounting frame for mounting the test product on the adjustment support, a hydraulic oil tank on the front side of the mounting frame, a main oil supply pipeline on one side of the hydraulic oil tank, an electric pump for controlling the outward delivery of oil in the main oil supply pipeline, two sets of oil supply branches on the rear side of the main oil supply pipeline, one set of oil supply branches connecting to a left hydraulic cylinder located on the left side of the mounting frame, and the other set of oil supply branches connecting to a right hydraulic cylinder located on the right side of the mounting frame, a left drive mechanism on one side of the left hydraulic cylinder, a right drive mechanism on one side of the right hydraulic cylinder, and pressure regulating valve groups and control valve groups for adjusting and controlling the left and right hydraulic cylinders on the oil supply branches.

[0005] In the aforementioned test device for a variable load regulating mechanism, the control valve group includes a left solenoid directional valve for controlling the left hydraulic cylinder and a right solenoid directional valve for controlling the right hydraulic cylinder. The left and right solenoid directional valves are three-position four-way directional valves.

[0006] In the aforementioned test device for a variable load regulating mechanism, the pressure regulating valve group includes a left rodless chamber pressure regulating valve and a left rod chamber pressure regulating valve connected to the rear side of the left solenoid directional valve, and a right rodless chamber pressure regulating valve and a right rod chamber pressure regulating valve connected to the rear side of the right solenoid directional valve.

[0007] In the aforementioned test device for a variable load adjustment mechanism, a motor for driving the electric pump is provided on one side of the electric pump.

[0008] In the aforementioned test device for a variable load regulating mechanism, a safety valve is provided on one side of the main oil supply pipeline.

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] This application, by setting up left and right drive mechanisms and enabling separate control of the left and right drive mechanisms through pressure regulating valve groups and control valve groups, achieves dynamic adjustment of variable load, thereby meeting the needs of different pressure loads and effectively verifying the stress conditions of the wing under various complex working conditions. Through the variable load adjustment mechanism test device of this invention, the functional performance of the aircraft wing rotation actuator can be tested under different attitude and variable load conditions, achieving the purpose of thorough verification. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention;

[0012] Figure 2 This is a schematic diagram of the hydraulic circuit of the present invention.

[0013] The labels in the attached diagram are as follows: 3-Left solenoid directional valve, 4-Left rodless chamber pressure regulating valve, 5-Left rod chamber pressure regulating valve, 8-Right rodless chamber pressure regulating valve, 9-Right rod chamber pressure regulating valve, 10-Right solenoid directional valve, 11-Motor, 12-Safety valve, 1a-Left drive mechanism, 2a-Left hydraulic cylinder, 3a-Pressure regulating valve assembly, 4a-Electric pump, 5a-Control valve assembly, 6a-Hydraulic oil tank, 7a-Right hydraulic cylinder, 8a-Right drive mechanism, 9a-Mounting bracket, 10a-Adjusting support, 11a-Base. Detailed Implementation

[0014] The present invention will be further described below with reference to embodiments, but these are not intended to limit the scope of the invention.

[0015] Example. A test device for a variable load regulating mechanism includes a hydraulic oil tank 6a. A main oil supply pipeline is provided on one side of the hydraulic oil tank 6a. The main oil supply pipeline outputs oil through an electric pump 4a driven by a motor 11, converting the motor's mechanical energy into hydraulic energy for the hydraulic system. A safety valve 12 is set to the maximum system pressure. When the system pressure exceeds the set value, the safety valve 12 overflows to protect the system. Two sets of oil supply branches are provided behind the main oil supply pipeline. These branches supply oil to a left hydraulic cylinder 2a and a right hydraulic cylinder 7a, respectively. The left hydraulic cylinder 2a drives a left drive mechanism 1a along a working trajectory, and the right hydraulic cylinder 7a controls a right drive mechanism 8a along a working trajectory, enabling independent control of the left drive mechanism 1a and the right drive mechanism 8a.

[0016] The operation flow of the left drive mechanism 1a is as follows: the oil is sent out from the main oil supply line and flows to the oil supply branch. It first flows through the left solenoid directional valve 3. The left solenoid directional valve 3 controls the on / off direction of the oil supply branch. This application further sets a left rodless chamber pressure regulating valve 4 and a left rod chamber pressure regulating valve 5 to realize the load control and adjustment of the left hydraulic cylinder 2a.

[0017] The test product is mounted on the test apparatus via mounting bracket 9a. The test product operates by overcoming the load of the left hydraulic cylinder 2a through the left drive mechanism 1a. At this time, adjusting the pressure of the left rodless chamber pressure regulating valve 4 changes the load magnitude, thereby verifying the functional performance of the test product under different loads and achieving the test objective. When the test product operates in the reverse direction, it needs to overcome the load of the left hydraulic cylinder 2a, and the hydraulic cylinder is in the retracting direction. Similarly, at this time, adjusting the pressure of the left rod chamber pressure regulating valve 5 changes the load magnitude, verifying the functional performance of the test product under different loads when operating in the reverse direction. This allows for adjustment not only of the load magnitude but also of the load direction, resulting in better test results. The right drive mechanism 8a operates on the same principle as the left drive mechanism 1a, allowing for separate control and adjustment of the load on both sides of the wing. This enables the simulation of more load conditions and achieves effective testing of the test product.

Claims

1. A variable load regulating mechanism test device characterized by: The base (11a) is provided with an adjusting support (10a), the adjusting support (10a) is provided with a mounting rack (9a) for mounting a test product, the front side of the mounting rack (9a) is provided with a hydraulic oil tank (6a), one side of the hydraulic oil tank (6a) is provided with a oil supply main pipeline, the oil supply main pipeline is provided with an electric pump (4a) for controlling the delivery of oil, the rear side of the oil supply main pipeline is provided with two groups of oil supply branch pipes, one group of the oil supply branch pipes is connected with a left hydraulic oil cylinder (2a) arranged on the left side of the mounting rack (9a), the other group of the oil supply branch pipes is connected with a right hydraulic oil cylinder (7a) arranged on the right side of the mounting rack (9a), one side of the left hydraulic oil cylinder (2a) is provided with a left driving mechanism (1a), one side of the right hydraulic oil cylinder (7a) is provided with a right driving mechanism (8a), the oil supply branch pipes are provided with a pressure regulating valve group (3a) and a control valve group (5a) for adjusting and controlling the left hydraulic oil cylinder (2a) and the right hydraulic oil cylinder (7a); the control valve group (5a) comprises a left electromagnetic reversing valve (3) for controlling the left hydraulic oil cylinder (2a) and a right electromagnetic reversing valve (10) for controlling the right hydraulic oil cylinder (7a), the left electromagnetic reversing valve (3) and the right electromagnetic reversing valve (10) are three-position four-way reversing valves; the pressure regulating valve group (3a) comprises a left rodless cavity pressure regulating valve (4) and a left rod cavity pressure regulating valve (5) connected to the rear side of the left electromagnetic reversing valve (3) and a right rodless cavity pressure regulating valve (8) and a right rod cavity pressure regulating valve (9) connected to the rear side of the right electromagnetic reversing valve (10).

2. A variable load control mechanism testing device according to claim 1, wherein: One side of the electric pump (4a) is provided with a motor (11) for driving the electric pump (4a).

3. A variable load control mechanism testing device according to claim 1, wherein: One side of the oil supply main pipeline is provided with a safety valve (12).

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