A wheel brake hydraulic test bench

Abstract

The utility model discloses a machine wheel brake hydraulic test board, including frame main part, the left end upper portion of frame main part is provided with the workstation, the right end front side wall of frame main part is installed with operation subassembly, the inner chamber of frame main part of operation subassembly rear wall installs power pack, and power pack includes oil tank, the inner chamber of oil tank installs the main plunger pump, and main plunger pump is connected with drive motor output end transmission, the oil outlet end intercommunication of main plunger pump has pipe network group, the upper installation of pipe network group has high pressure filter, one side of pipe network group still intercommunication has auxiliary emergency hand pump. Solveed the problem that the majority of general hydraulic test board on the market adopts single electric pump power design currently, if encounters motor failure, power failure or pipeline pressure abnormality, will directly lead to test interruption, even because brake hub is in high pressure state and cannot be relieved and causes test piece damage, causes the property loss problem.

Description

Technical Field

[0001] This utility model relates to the field of brake test bench technology, and more specifically, to a hydraulic test bench for wheel brakes. Background Technology

[0002] The wheel braking system is the most critical part of ground deceleration for civil aircraft, determining landing safety. The hydraulic brake hubs used in the brake wheels of the aircraft wheel braking system require testing on a test bench during use to ensure safety.

[0003] Most general-purpose hydraulic test benches on the market currently use a single electric pump power design. If a motor failure, power outage, or sudden abnormal pressure in the pipeline occurs, it will directly lead to test interruption. In some cases, the brake hub may be under high pressure and unable to release pressure, causing damage to the test piece and resulting in property loss.

[0004] To address the aforementioned issues, this application proposes a hydraulic test bench for wheel brakes. Utility Model Content

[0005] To address the problems in related technologies, this utility model provides a hydraulic test bench for wheel brakes, which can ensure the reliability of the test bench equipment through a dual-power redundancy structure, thereby avoiding property damage.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows: A hydraulic test bench for wheel brakes includes a frame body, a workbench is provided on the upper left side of the frame body, a test port is connected to the right side wall of the workbench, an operating component is installed on the front right side wall of the frame body, and a power component is installed in the inner cavity of the frame body behind the operating component. The power assembly includes an oil tank installed inside the frame body. A main plunger pump is installed inside the oil tank and is connected to the output end of a drive motor. The drive motor is mounted on the upper surface of the oil tank. The oil outlet of the main plunger pump is connected to a pipeline network. A high-pressure filter is installed on the pipeline network. An auxiliary emergency manual pump is also connected to one side of the pipeline network. A test port is connected to the other side of the pipeline network. The main plunger pump is connected to the operating assembly through the pipeline network.

[0007] As a further embodiment of this utility model, the operating component includes an equipment platform, which is installed on the right front side wall of the frame body. A pressure gauge group is installed on the equipment platform, and a manual high-low pressure switching ball valve is installed on the equipment platform below the pressure gauge group. A control button group is installed on the equipment platform to the right of the manual high-low pressure switching ball valve. A main oil circuit shut-off valve and an oil circuit pressure relief valve are respectively installed on the left and right sides below the manual high-low pressure switching ball valve.

[0008] As a further embodiment of this utility model, a low-pressure control valve is installed below the main oil circuit shut-off valve and the oil circuit pressure relief valve, a high-pressure control valve is installed below the low-pressure control valve, and an instrument control valve group is installed below the high-pressure control valve.

[0009] As a further embodiment of this utility model, a manual pump pressure relief valve is installed below the instrument control valve group, and a manual pump switch shut-off valve is installed to the right of the manual pump pressure relief valve.

[0010] As a further embodiment of this utility model, the manual pump pressure relief valve, the manual pump switch shut-off valve, the instrument control valve group, the high-pressure control valve, the low-pressure control valve, the main oil circuit shut-off valve, the oil circuit pressure relief valve, the manual high-low pressure switching ball valve, and the pressure instrument group are all connected to the pipeline network group.

[0011] As a further embodiment of this utility model, the control button group is also provided with an emergency stop button, and the control button group is electrically connected to the electrical control box on the rear wall of the equipment platform.

[0012] As a further embodiment of this utility model, a protective fence is installed on the work platform, and casters are installed at the bottom of the main frame body.

[0013] The beneficial effects of this utility model are as follows: This invention utilizes a dual-power architecture consisting of a main plunger pump (equipped with a drive motor) and an auxiliary emergency manual pump in the power assembly, and connects both to the test port via a pipeline network. This effectively avoids the test interruption problem caused by motor failure and power failure in the existing general-purpose test bench with a single electric pump design. At the same time, the auxiliary emergency manual pump can release oil pressure or maintain the basic test pressure when the power is abnormal, avoiding damage to the brake wheel hub caused by high pressure retention, and significantly improving the reliability of the test process and the protection effect of the test pieces. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of a hydraulic test bench for wheel brakes according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the workbench of a hydraulic test bench for wheel brakes according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the installation position of the power component of a hydraulic test bench for wheel brakes according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the operating components of a hydraulic test bench for wheel brakes according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the power component structure of a hydraulic test bench for wheel brakes according to an embodiment of the present utility model.

[0016] In the picture: 1. Main frame; 2. Workbench; 3. Test port; 4. Operating components; 41. Equipment platform; 42. Pressure gauge group; 43. Manual high / low pressure switching ball valve; 44. Control button group; 45. Main oil circuit shut-off valve; 46. Oil circuit pressure relief valve; 47. Low pressure control valve; 48. High pressure control valve; 49. Instrument control valve group; 410. Manual pump pressure relief valve; 411. Manual pump switch shut-off valve; 412. Emergency stop button; 5. Power component; 6. Oil tank; 7. Drive motor; 8. Piping network group; 9. High pressure filter; 10. Auxiliary emergency manual pump; 11. Protective fence; 12. Casters. Detailed Implementation

[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0018] According to an embodiment of the present invention, a hydraulic test bench for wheel brakes is provided.

[0019] Please refer to the instruction manual appendix. Figure 1-5According to an embodiment of the present invention, a hydraulic test bench for a wheel brake includes a frame body 1. A workbench 2 is provided on the upper left side of the frame body 1. A test port 3 is connected to the right side wall of the workbench 2. An operating component 4 is installed on the front right side wall of the frame body 1. A power component 5 is installed in the inner cavity of the frame body 1 behind the operating component 4. The power component 5 includes an oil tank 6, which is installed in the inner cavity of the frame body 1. A main plunger pump is installed in the inner cavity of the oil tank 6, and the main plunger pump is connected to the output end of a drive motor 7. The drive motor 7 is installed on the upper surface of the oil tank 6. The oil outlet of the main plunger pump is connected to a pipeline network 8. A high-pressure filter 9 is installed on the pipeline network 8. An auxiliary emergency manual pump 10 is also connected to one side of the pipeline network 8. The test port 3 is connected to the other side of the pipeline network 8. The main plunger pump is connected to the operating component 4 through the pipeline network 8. By setting up a dual-power architecture in the power assembly 5, consisting of a main plunger pump, a drive motor 7, and an auxiliary emergency manual pump 10, and connecting both to the test port 3 via a pipeline network 8, the problem of test interruption caused by motor failure and power failure under the existing single electric pump design of general test benches is effectively avoided. At the same time, the auxiliary emergency manual pump 10 can release oil pressure or maintain the basic test pressure when the power is abnormal, avoiding damage to the brake wheel hub caused by high pressure retention, and significantly improving the reliability of the test process and the protection effect of the test piece.

[0020] In one embodiment, please refer to the appendix to the specification. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As a further embodiment of this utility model, the operating component 4 includes an equipment platform 41, which is mounted on the front right side wall of the frame body 1. A pressure gauge group 42 is mounted on the equipment platform 41. A manual high / low pressure switching ball valve 43 is mounted on the equipment platform 41 below the pressure gauge group 42. A control button group 44 is mounted on the equipment platform 41 to the right of the manual high / low pressure switching ball valve 43. A main oil circuit shut-off valve 45 and an oil circuit pressure relief valve 46 are respectively mounted on the left and right sides below the manual high / low pressure switching ball valve 43. A low-pressure control valve 47 is mounted below the main oil circuit shut-off valve 45 and the oil circuit pressure relief valve 46. A high-pressure control valve 47 is mounted below the low-pressure control valve 47. Valve 48 is included. Below the high-pressure control valve 48 is an instrument control valve group 49. Below the instrument control valve group 49 is a manual pump pressure relief valve 410. To the right of the manual pump pressure relief valve 410 is a manual pump switch shut-off valve 411. The manual pump pressure relief valve 410, manual pump switch shut-off valve 411, instrument control valve group 49, high-pressure control valve 48, low-pressure control valve 47, main oil circuit shut-off valve 45, oil circuit pressure relief valve 46, manual high / low pressure switching ball valve 43, and pressure instrument group 42 are all connected to the pipeline network group 8. The control button group 44 also includes an emergency stop button 412. The control button group 44 is electrically connected to the electrical control box on the rear wall of the equipment platform 41. The various valves installed on the pipeline network group 8 facilitate the control of the test platform's pipeline network group 8, while the pressure instrument group 42 facilitates the observation of pressure changes in the pipeline network group 8, and the control button group 44 facilitates the use of the test platform.

[0021] In one embodiment, please refer to the appendix to the specification. Figure 1 and Figure 2 As a further embodiment of this utility model, a protective fence 11 is installed on the workbench 2, and casters 12 are installed at the bottom of the frame body 1. The protective fence 11 provides protection during operation, while the casters 12 facilitate the movement of the test bench.

[0022] Workflow: When in use, first open the protective fence 11, place the hydraulic brake hub to be tested on the workbench 2, then connect the hydraulic brake hub to the test port 3 through the connecting pipe, and then close the protective fence 11. Then, start the test bench by using the control switch in the control button group 44 to start the test. During this process, the auxiliary emergency manual pump 10 can continue the test in case of motor failure or power failure, thus ensuring the continuity of the test. At the same time, the auxiliary emergency manual pump 10 can release oil pressure or maintain the basic test pressure when the power is abnormal, avoiding damage to the brake hub caused by high pressure retention. In addition, the user can observe the test pressure in real time through the pressure gauge group 42.

[0023] It should be noted that the specific models and specifications of the main plunger pump, drive motor 7, high-pressure filter 9, auxiliary emergency manual pump 10, manual pump pressure relief valve 410, manual pump switch shut-off valve 411, instrument control valve group 49, high-pressure control valve 48, low-pressure control valve 47, main oil circuit shut-off valve 45, oil circuit pressure relief valve 46, manual high and low pressure switching ball valve 43, and pressure instrument group 42 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0024] The power supply and operating principles of the main plunger pump, drive motor 7, high-pressure filter 9, control button group 44, emergency stop button 412, and electrical control box are clear to those skilled in the art and will not be described in detail here.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hydraulic test bench for wheel brakes, comprising a frame body (1), characterized in that: A workbench (2) is provided on the upper left side of the frame body (1). A test port (3) is connected to the right side wall of the workbench (2). An operation component (4) is installed on the front right side wall of the frame body (1). A power component (5) is installed in the inner cavity of the frame body (1) on the rear wall of the operation component (4). The power assembly (5) includes an oil tank (6), which is installed in the inner cavity of the frame body (1). A main plunger pump is installed in the inner cavity of the oil tank (6), and the main plunger pump is connected to the output end of the drive motor (7). The drive motor (7) is installed on the upper surface of the oil tank (6). The oil outlet of the main plunger pump is connected to a pipeline network (8). A high-pressure filter (9) is installed on the pipeline network (8). An auxiliary emergency manual pump (10) is also connected to one side of the pipeline network (8). A test port (3) is connected to the other side of the pipeline network (8). The main plunger pump is connected to the operation assembly (4) through the pipeline network (8).

2. The hydraulic test bench for wheel brakes according to claim 1, characterized in that: The operating component (4) includes an equipment platform (41), which is installed on the front right side wall of the frame body (1). A pressure gauge group (42) is installed on the equipment platform (41). A manual high-low pressure switching ball valve (43) is installed on the equipment platform (41) below the pressure gauge group (42). A control button group (44) is installed on the equipment platform (41) to the right of the manual high-low pressure switching ball valve (43). A main oil circuit shut-off valve (45) and an oil circuit pressure relief valve (46) are respectively installed on the left and right sides below the manual high-low pressure switching ball valve (43).

3. The hydraulic test bench for wheel brakes according to claim 2, characterized in that: A low-pressure control valve (47) is installed below the main oil circuit shut-off valve (45) and the oil circuit pressure relief valve (46). A high-pressure control valve (48) is installed below the low-pressure control valve (47). An instrument control valve group (49) is installed below the high-pressure control valve (48).

4. The hydraulic test bench for wheel brakes according to claim 3, characterized in that: A manual pump pressure relief valve (410) is installed below the instrument control valve group (49), and a manual pump switch shut-off valve (411) is installed to the right of the manual pump pressure relief valve (410).

5. The hydraulic test bench for wheel brakes according to claim 4, characterized in that: The manual pump pressure relief valve (410), manual pump switch shut-off valve (411), instrument control valve group (49), high pressure control valve (48), low pressure control valve (47), main oil circuit shut-off valve (45), oil circuit pressure relief valve (46), manual high and low pressure switching ball valve (43), and pressure instrument group (42) are all connected to the pipeline network group (8).

6. The hydraulic test bench for wheel brakes according to claim 2, characterized in that: The control button group (44) is also provided with an emergency stop button (412), and the control button group (44) is electrically connected to the electrical control box on the rear wall of the equipment platform (41).

7. The hydraulic test bench for wheel brakes according to claim 1, characterized in that: The workbench (2) is equipped with a protective fence (11), and the bottom of the frame body (1) is equipped with casters (12).

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