Variable load adjusting mechanism testing device

Abstract

The invention discloses a variable load adjusting mechanism testing device which comprises a base (11a), an adjusting support (10a) is arranged on the base (11a), a mounting frame (9a) used for mounting a test product is arranged on the adjusting support (10a), a hydraulic oil tank (6a) is arranged on the front side of the mounting frame (9a), an oil supply main pipeline is arranged on one side of the hydraulic oil tank (6a), and an electric pump (4a) for controlling oil liquid to be conveyed outwards is arranged in the oil supply main pipeline. Two groups of oil supply branches are arranged on the rear side of the oil supply main pipeline, one group of oil supply branches is connected with a left hydraulic oil cylinder (2a) arranged on the left side of the mounting frame (9a), the other group of oil supply branches is connected with a right hydraulic oil cylinder (7a) arranged on the right side of the mounting frame (9a), and a pressure regulating valve group (3a) and a control valve group (5a) which are used for regulating and controlling the left hydraulic oil cylinder (2a) and the right hydraulic oil cylinder (7a) are arranged on the oil supply branches. The test effect of the aircraft wing can be effectively improved.

Description

Technical Field

[0001] The invention relates to an aircraft wing load adjustment test device, in particular to a variable load adjustment mechanism test device. Background Art

[0002] The actual wing rotation of the aircraft during flight is under a huge load, and the load is constantly changing according to the operating status. The actuator may bear tension in a certain flight attitude, and bear pressure in another flight attitude. The load of the existing equipment test bench is relatively single, and cannot fully simulate the various complex working conditions and load changes during the rotation of the aircraft wing, resulting in poor experimental results on the wing. Summary of the invention

[0003] The purpose of the present invention is to provide a variable load adjustment mechanism test device which can effectively improve the test effect of aircraft wings.

[0004] The technical solution of the present invention is as follows: a variable load adjustment mechanism test device comprises a base, an adjustment support is provided on the base, a mounting frame for mounting a test product is provided on the adjustment support, a hydraulic oil tank is provided on the front side of the mounting frame, a main oil supply pipeline is provided on one side of the hydraulic oil tank, an electric pump for controlling the outward delivery of oil is provided in the main oil supply pipeline, two groups of oil supply branches are provided on the rear side of the main oil supply pipeline, one group of oil supply branches is connected to a left hydraulic cylinder arranged on the left side of the mounting frame, and the other group of oil supply branches is connected to a right hydraulic cylinder arranged on the right side of the mounting frame, a left driving mechanism is provided on one side of the left hydraulic cylinder, and a right driving mechanism is provided on one side of the right hydraulic cylinder, and a pressure regulating valve group and a control valve group for adjusting and controlling the left hydraulic cylinder and the right hydraulic cylinder are provided on the oil supply branches.

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

[0006] In the aforementioned variable load regulation mechanism test device, 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 electromagnetic reversing 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 electromagnetic reversing valve.

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

[0008] In the aforementioned variable load regulating mechanism test device, 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] The present application sets a left drive mechanism and a right drive mechanism, and can realize the separate control of the left drive mechanism and the right drive mechanism through a pressure regulating valve group and a control valve group, so as to realize the dynamic adjustment of variable load, thereby meeting the requirements of different pressure loads, and can effectively verify the stress conditions of the wing under various complex working conditions. Through the variable load adjustment mechanism test device of the present invention, the functional performance of the aircraft wing rotation actuator can be tested under different attitudes and variable load conditions, so as to achieve the purpose of full verification. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0013] The marks in the attached drawings are: 3-left electromagnetic reversing 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 electromagnetic reversing valve, 11-motor, 12-safety valve, 1a-left drive mechanism, 2a-left hydraulic cylinder, 3a-pressure regulating valve group, 4a-electric pump, 5a-control valve group, 6a-hydraulic oil tank, 7a-right hydraulic cylinder, 8a-right drive mechanism, 9a-mounting frame, 10a-adjusting support, 11a-base. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with embodiments, but is not intended to be limiting of the present invention.

[0015] Embodiment. A variable load regulating mechanism test device includes a hydraulic oil tank 6a, and a main oil supply pipeline is provided on one side of the hydraulic oil tank 6a. The main oil supply pipeline outputs oil to the outside through an electric pump 4a driven by a motor 11, converting the mechanical energy of the motor into hydraulic energy of the hydraulic system. The safety valve 12 sets the maximum pressure of the system. When the system pressure exceeds the set value, the overflow of the safety valve 12 is realized to protect the system. Two groups of oil supply branches are provided on the rear side of the main oil supply pipeline, and the two groups of oil supply branches supply oil to the left hydraulic cylinder 2a and the right hydraulic cylinder 7a respectively. The left hydraulic cylinder 2a is used to drive the left drive mechanism 1a to move along the working trajectory, and the right hydraulic cylinder 7a is used to control the right drive mechanism 8a to move along the working trajectory, so as to realize the separate control of the left drive mechanism 1a and the right drive mechanism 8a.

[0016] For example, the action process of the left driving mechanism 1a is as follows: the oil is sent out from the main oil supply pipeline, the oil will flow to the oil supply branch, and will first flow through the left electromagnetic reversing valve 3, and the on-off direction of the oil supply branch will be controlled by the left electromagnetic reversing valve 3. The present application further arranges 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 product under test is installed on the test device through the mounting frame 9a, and the product under test is operated by overcoming the load of the left hydraulic cylinder 2a through the left driving mechanism 1a. At this time, the pressure of the left rodless chamber pressure regulating valve 4 is adjusted to achieve the change of load size, thereby verifying the functional performance of the product under different loads and achieving the purpose of the test. When the product under test works in reverse, it is necessary to overcome the load of the left hydraulic cylinder 2a, and the hydraulic cylinder is in the retracting direction. Similarly, at this time, the pressure of the left rod chamber pressure regulating valve 5 can be adjusted to achieve the change of load size, and verify the functional performance of the product under different loads when working in reverse. In this way, not only the load size can be adjusted, but also the load direction can be adjusted, and the test effect is better. The working principle of the right driving mechanism 8a is consistent with the working principle of the left driving mechanism 1a, so that the loads on both sides of the wing can be controlled and adjusted separately, more load conditions can be simulated and tested, and effective testing of the test product can be achieved.

Claims

1. A variable load adjustment mechanism test device, characterized in that: The invention comprises a base (11a), wherein an adjusting support (10a) is provided on the base (11a), and a mounting frame (9a) for mounting a test product is provided on the adjusting support (10a), and a hydraulic oil tank (6a) is provided on the front side of the mounting frame (9a), and a main oil supply pipeline is provided on one side of the hydraulic oil tank (6a), and an electric pump (4a) for controlling the oil to be transported outward is provided in the main oil supply pipeline, and two groups of oil supply branches are provided on the rear side of the main oil supply pipeline, one group of oil supply branches is connected to a left hydraulic oil cylinder (2a) provided on the left side of the mounting frame (9a), and the other group of oil supply branches is connected to a right hydraulic oil cylinder (7a) provided on the right side of the mounting frame (9a), a left driving mechanism (1a) is provided on one side of the left hydraulic oil cylinder (2a), and a right driving mechanism (8a) is provided on one side of the right hydraulic oil cylinder (7a), and 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) are provided on the oil supply branches.

2. A variable load adjustment mechanism test device according to claim 1, characterized in that: The control valve group (5a) comprises a left electromagnetic reversing valve (3) for controlling the left hydraulic cylinder (2a) and a right electromagnetic reversing valve (10) for controlling the right hydraulic cylinder (7a); the left electromagnetic reversing valve (3) and the right electromagnetic reversing valve (10) are three-position four-way reversing valves.

3. A variable load adjustment mechanism test device according to claim 2, characterized in that: The pressure regulating valve group (3a) comprises a left rodless chamber pressure regulating valve (4) and a left rod chamber pressure regulating valve (5) connected to the rear side of the left electromagnetic reversing valve (3), and a right rodless chamber pressure regulating valve (8) and a right rod chamber pressure regulating valve (9) connected to the rear side of the right electromagnetic reversing valve (10).

4. The variable load adjustment mechanism test device according to claim 1, characterized in that: A motor (11) for driving the electric pump (4a) is provided on one side of the electric pump (4a).

5. The variable load adjustment mechanism test device according to claim 1, characterized in that: A safety valve (12) is provided on one side of the main oil supply pipeline.

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