Performance test system for airplane hydraulic brake component

Abstract

The utility model relates to the technical field of airplane hydraulic brake component performance testing, and discloses an airplane hydraulic brake component performance testing system which comprises a bottom plate, an oil storage tank is fixedly connected to the upper surface of the bottom plate, an oil conveying pipe is fixedly connected to the outer wall of the oil storage tank, and a pneumatic booster pump is fixedly connected to the outer wall of the oil conveying pipe. The lower surface of the pneumatic booster pump is fixedly connected to the upper surface of the bottom plate, a pressure valve is arranged on the upper surface of the pneumatic booster pump, a connecting block is fixedly connected to the outer wall of the pneumatic booster pump, a ventilation pipe is fixedly connected to the outer wall of the connecting block, and a testing bin is fixedly connected to the outer wall of the ventilation pipe; and the lower surface of the test bin is fixedly connected to the upper surface of the bottom plate. According to the utility model, through the mutual cooperation of the pneumatic booster pump and the explosion-proof electric cabinet, stable pressure is provided for the test cabin and the pneumatic booster pump is protected from being corroded by hydraulic oil of a phosphate machine, so that the correctness of a final test result is improved.

Description

Technical Field

[0001] This utility model relates to the field of performance testing technology for aircraft hydraulic brake components, and in particular to a performance testing system for aircraft hydraulic brake components. Background Technology

[0002] Aircraft hydraulic braking components are related components in the aircraft braking system that utilize hydraulic principles to achieve braking functions. They play a crucial role in decelerating and stopping the aircraft during taxiing and landing on the ground, and the reliability of aircraft hydraulic braking components directly affects the flight safety of the aircraft.

[0003] A search revealed Chinese Patent Publication No. CN219416527U, which discloses a hydraulic disc brake device braking performance test bench. The bench includes a base and, mounted on the base, a test oil source, a motor, a pump unit, a hydraulic motor, and a main support frame. A main shaft is connected to the main support frame via bearings, and a brake disc is fitted onto the main shaft. The hydraulic motor is connected to the main shaft, driving the pump unit, which in turn drives the hydraulic motor. A clamp frame is mounted on the base, housing multiple hydraulic clamps arranged circumferentially around the brake disc. These hydraulic clamps are connected to the brake oil source. A control box is also located on the base, containing operating components for controlling the pump unit and a pressure gauge for detecting the working pressure. The output torque of the hydraulic motor can be calculated from its working pressure, thus yielding the braking torque of the hydraulic clamps. No other electrical components are included besides the motor. Operation is simple, requiring only a control handle, and does not demand high technical skills from operators and maintenance personnel. Furthermore, the failure rate is low.

[0004] However, existing test chambers typically use variable displacement pumps to test brakes. As a power source, variable displacement pumps not only consume a lot of energy, but also experience large pressure fluctuations when switching between high and low pressure during cyclic testing, which may lead to inaccurate final test results. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a performance testing system for aircraft hydraulic brake components, which aims to improve the problem that existing test chambers typically use variable pumps, which may lead to inaccurate final test results.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a performance testing system for aircraft hydraulic brake components, comprising a base plate, an oil storage tank fixedly connected to the upper surface of the base plate, an oil delivery pipe fixedly connected to the outer wall of the oil storage tank, a pneumatic booster pump fixedly connected to the outer wall of the oil delivery pipe, a pressure valve provided on the upper surface of the pneumatic booster pump, a connecting block fixedly connected to the outer wall of the pneumatic booster pump, a vent pipe fixedly connected to the outer wall of the connecting block, a test chamber fixedly connected to the outer wall of the vent pipe, a test chamber fixedly connected to the lower surface of the test chamber fixedly connected to the upper surface of the base plate, an explosion-proof electrical control box fixedly connected to the outer wall of the pneumatic booster pump, a terminal block fixedly connected to the inner wall of the test chamber, a unit control component provided on the outer wall of the terminal block, and a unit control component fixedly connected to the lower surface of the base plate.

[0007] Through the above technical solution, the explosion-proof electrical control box can isolate the hydraulic oil of the phosphate ester machine from the components in the pneumatic booster pump, thus preventing the hydraulic oil of the phosphate ester machine from damaging the components of the pneumatic booster pump.

[0008] As a further description of the above technical solution:

[0009] The unit control assembly includes a control box, the outer wall of the terminal block is fixedly connected to the inner wall of the control box, and a touch screen is fixedly connected to the upper surface of the control box.

[0010] The above technical solution allows the touchscreen to control the test items in the test chamber and display the test data in real time.

[0011] As a further description of the above technical solution:

[0012] The oil storage tank is used to store hydraulic oil for the phosphate ester machine.

[0013] Through the above technical solution, the oil storage tank has good corrosion resistance and can therefore store phosphate ester hydraulic oil.

[0014] As a further description of the above technical solution:

[0015] The oil pipeline is made of a wear-resistant layer, a silicone layer, a reinforcing layer, and an anti-corrosion layer.

[0016] The above technical solution is used to improve the overall weather resistance of the oil pipeline surface.

[0017] As a further description of the above technical solution:

[0018] The outer side of the wear-resistant layer is bonded to the inner side of the silicone layer.

[0019] The above technical solution involves using polyethylene as the material for the wear-resistant layer. Polyethylene has excellent weather resistance, which can protect the surface of the oil pipeline from corrosion by the outside air.

[0020] As a further description of the above technical solution:

[0021] The outer side of the silicone layer is attached to the inner side of the reinforcing layer.

[0022] The above technical solution involves using silicone rubber as the material for the silicone layer. Silicone rubber has excellent toughness, which can improve the overall toughness of the oil pipeline.

[0023] As a further description of the above technical solution:

[0024] The outer side of the reinforcing layer is attached to the inner side of the anti-corrosion layer.

[0025] The above technical solution involves using epoxy resin as the reinforcing layer. Epoxy resin has excellent strength, which helps prevent the oil pipeline from breaking under external force.

[0026] As a further description of the above technical solution:

[0027] The lower surface of the explosion-proof electrical control box is fixedly connected to the upper surface of the base plate.

[0028] The above technical solution uses a base plate to support the explosion-proof electrical control box.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the pneumatic booster pump can quickly and stably supply pressure to the test chamber, and the explosion-proof electrical control box can isolate the hydraulic oil of the phosphate ester machine from the internal components of the pneumatic booster pump, thereby protecting the internal components of the pneumatic booster pump from corrosion by the hydraulic oil of the phosphate ester machine. Through the cooperation of the pneumatic booster pump and the explosion-proof electrical control box, a stable pressure is provided to the test chamber and the pneumatic booster pump is protected from corrosion by the hydraulic oil of the phosphate ester machine, thereby improving the accuracy of the final test results.

[0031] 2. In this utility model, through the combined effect of the wear-resistant layer, silicone layer, reinforcing layer and anti-corrosion layer, not only can the overall weather resistance and toughness of the oil pipeline be improved, but the oil pipeline can also be protected from corrosion by phosphate ester hydraulic oil, thereby extending the service life of the oil pipeline. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the aircraft hydraulic brake component performance testing system proposed in this utility model.

[0033] Figure 2This is a partial structural diagram of the wiring board of the aircraft hydraulic brake component performance testing system proposed in this utility model.

[0034] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0035] Figure 4 This is a cross-sectional structural diagram of the wear-resistant layer of the performance testing system for aircraft hydraulic brake components proposed in this utility model.

[0036] Legend:

[0037] 1. Base plate; 2. Unit control components; 201. Control box; 202. Touch screen; 3. Wiring board; 4. Test chamber; 5. Oil storage tank; 6. Oil delivery pipe; 7. Pneumatic booster pump; 8. Pressure valve; 9. Connecting block; 10. Vent pipe; 11. Explosion-proof electrical control box; 12. Wear-resistant layer; 13. Silicone layer; 14. Reinforcing layer; 15. Anti-corrosion layer. Detailed Implementation

[0038] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] Reference Figures 1-3 An embodiment of this utility model provides an aircraft hydraulic brake component performance testing system, including a base plate 1, an oil storage tank 5 fixedly connected to the upper surface of the base plate 1, an oil supply pipe 6 fixedly connected to the outer wall of the oil storage tank 5, a pneumatic booster pump 7 fixedly connected to the outer wall of the oil supply pipe 6, a pressure valve 8 provided on the upper surface of the pneumatic booster pump 7, a connecting block 9 fixedly connected to the outer wall of the pneumatic booster pump 7, a vent pipe 10 fixedly connected to the outer wall of the connecting block 9, a test chamber 4 fixedly connected to the outer wall of the vent pipe 10, a test chamber 4 fixedly connected to the lower surface of the test chamber 4 fixedly connected to the upper surface of the base plate 1, an explosion-proof electrical control box 11 fixedly connected to the outer wall of the pneumatic booster pump 7, a wiring board 3 fixedly connected to the inner wall of the test chamber 4, a unit control component 2 provided on the outer wall of the wiring board 3, and a unit control component 2 fixedly connected to the lower surface of the base plate 1.

[0040] Specifically, the unit control component 2 is used to control the test items of the test chamber 4, the oil storage tank 5 is used to supply oil to the pneumatic booster pump 7, the pneumatic booster pump 7 is used to regulate the gas pressure inside the test chamber 4 to support the test chamber 4 in performing venting tests, leakage tests, functional tests and cycle tests, and the explosion-proof electrical control box 11 is used to isolate the hydraulic oil part and the air or electrical part inside the pneumatic booster pump 7 to prevent the hydraulic oil from corroding the air circuit components inside the pneumatic booster pump 7. Through the cooperation between the pneumatic booster pump 7 and the explosion-proof electrical control box 11, not only can the pressure be supplied to the test chamber 4 quickly and stably, but the hydraulic oil can also be isolated from the various components inside the pneumatic booster pump 7 to prevent the hydraulic oil from corroding the components in the pneumatic booster pump 7, thereby extending the service life of the pneumatic booster pump 7.

[0041] Reference Figures 1-3 The unit control component 2 includes a control box 201, the outer wall of the terminal block 3 is fixedly connected to the inner wall of the control box 201, and a touch screen 202 is fixedly connected to the upper surface of the control box 201; the oil storage tank 5 is used to store hydraulic oil for the phosphate ester machine.

[0042] Specifically, the touch screen 202 is used to adjust the test items in the test chamber 4 and display the current test data, and the control box 201 is used to transmit the instructions and commands of the touch screen 202 to the test chamber 4.

[0043] Reference Figure 1 and Figure 4 The material of the oil pipeline 6 is composed of a wear-resistant layer 12, a silicone layer 13, a reinforcing layer 14, and an anti-corrosion layer 15;

[0044] Specifically, the wear-resistant layer 12 is used to improve the surface strength of the oil pipeline 6 and prevent corrosion of the surface of the oil pipeline 6 due to long-term use, thereby preventing oil leakage. The silicone layer 13 is used to enhance the overall toughness of the oil pipeline 6. The reinforcing layer 14 is used to improve the overall strength of the oil pipeline 6 and prevent the oil pipeline 6 from breaking due to external forces. The anti-corrosion layer 15 is used to protect the oil pipeline 6 from corrosion by the phosphate ester hydraulic oil. Through the cooperation between the wear-resistant layer 12, the silicone layer 13, the reinforcing layer 14 and the anti-corrosion layer 15, the overall strength and corrosion resistance of the oil pipeline 6 are improved, thereby improving the reliability of the oil pipeline 6.

[0045] Reference Figure 1 , Figure 3 and Figure 4 The outer side of the wear-resistant layer 12 is attached to the inner side of the silicone layer 13; the outer side of the silicone layer 13 is attached to the inner side of the reinforcing layer 14; the outer side of the reinforcing layer 14 is attached to the inner side of the anti-corrosion layer 15; the lower surface of the explosion-proof electrical control box 11 is fixedly connected to the upper surface of the base plate 1.

[0046] Specifically, polyethylene has good wear resistance and weather resistance, which can improve the overall wear resistance of the wear-resistant layer 12; silicone rubber has excellent toughness and good resilience, which can improve the overall resilience of the silicone layer 13; epoxy resin has excellent strength and good adhesion, which can improve the overall strength of the reinforcing layer 14; and polyurethane has extremely high wear resistance and chemical corrosion resistance, which can protect the oil pipeline 6 from hydraulic oil corrosion.

[0047] Working principle: The maintenance personnel first place the brake component to be tested into the test chamber 4, then adjust the test items through the touch screen 202, and then click the start test button to start the test. At this time, the pneumatic booster pump 7 will change the pressure in the test chamber 4 according to the test items. When the pneumatic booster pump 7 is working, it will isolate the phosphate ester hydraulic oil and electrical components inside the pneumatic booster pump 7 through the explosion-proof electrical control box 11. Through the cooperation between the pneumatic booster pump 7 and the explosion-proof electrical control box 11, the pressure is supplied to the test chamber 4 quickly and stably, and the phosphate ester hydraulic oil is isolated from the internal components of the pneumatic booster pump 7, so as to protect the pneumatic booster pump 7 from corrosion by the phosphate ester hydraulic oil.

[0048] Since the wear-resistant layer 12 is made of polyethylene, which has excellent weather resistance and can maintain good chemical stability even when exposed to air for a long time, it can protect the oil pipeline 6 from external air corrosion. The excellent resilience of silicone rubber can reduce the damage caused by external impact to the oil pipeline 6. Since the reinforcing layer 14 is made of epoxy resin, which has excellent hardness, it can improve the overall strength of the reinforcing layer 14 and further improve the overall hardness of the oil pipeline 6. Polyurethane has excellent chemical stability, which can protect the oil pipeline 6 from the corrosion of phosphate ester hydraulic oil. Through the combined effect of the wear-resistant layer 12, silicone layer 13, reinforcing layer 14 and anti-corrosion layer 15, the reliability of the oil pipeline 6 during use is improved and the service life of the oil pipeline 6 is extended.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An aircraft hydraulic brake component performance testing system comprising a base plate (1) characterised in that: The upper surface of the bottom plate (1) is fixedly connected with an oil storage tank (5), the outer wall of the oil storage tank (5) is fixedly connected with an oil delivery pipe (6), the outer wall of the oil delivery pipe (6) is fixedly connected with a pneumatic booster pump (7), the lower surface of the pneumatic booster pump (7) is fixedly connected to the upper surface of the bottom plate (1), the upper surface of the pneumatic booster pump (7) is provided with a pressure valve (8), the outer wall of the pneumatic booster pump (7) is fixedly connected with a connecting block (9), the outer wall of the connecting block (9) is fixedly connected with an air pipe (10), the outer wall of the air pipe (10) is fixedly connected with a test bin (4), the lower surface of the test bin (4) is fixedly connected to the upper surface of the bottom plate (1), the outer wall of the pneumatic booster pump (7) is fixedly connected with an explosion-proof electric control box (11), the inner wall of the test bin (4) is fixedly connected with a terminal block (3), the outer wall of the terminal block (3) is provided with a unit control assembly (2), and the lower surface of the unit control assembly (2) is fixedly connected to the upper surface of the bottom plate (1).

2. The aircraft hydraulic brake component performance testing system of claim 1, wherein: The unit control assembly (2) comprises a control box (201), and the outer wall of the terminal block (3) is fixedly connected to the inner wall of the control box (201).

3. The aircraft hydraulic brake component performance testing system of claim 1, wherein: The oil storage tank (5) is used for storing phosphate ester machine hydraulic oil.

4. The aircraft hydraulic brake component performance testing system of claim 1, wherein: The material of the oil delivery pipe (6) is composed of a wear-resistant layer (12), a silica gel layer (13), a reinforcing layer (14) and a corrosion-resistant layer (15).

5. The aircraft hydraulic brake component performance testing system of claim 4, wherein: The outer side of the wear-resistant layer (12) is attached to the inner side of the silica gel layer (13).

6. The aircraft hydraulic brake component performance testing system of claim 4, wherein: The outer side of the silica gel layer (13) is attached to the inner side of the reinforcing layer (14).

7. The aircraft hydraulic brake component performance testing system of claim 4, wherein: The outer side of the reinforcing layer (14) is attached to the inner side of the corrosion-resistant layer (15).

8. The aircraft hydraulic brake component performance testing system of claim 1, wherein: The lower surface of the explosion-proof electric control box (11) is fixedly connected to the upper surface of the bottom plate (1).

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