Test apparatus and method for integrated energy redundancy module

Abstract

The application provides a testing device and method for integrated energy redundancy module, comprising a high-pressure shell assembly, a low-pressure shell assembly and an integrated block assembly; the integrated block assembly is connected with the high-pressure shell assembly and the low-pressure shell assembly respectively; the testing device realizes the hydraulic sealing strength test of the high-pressure shell assembly and the low-pressure shell assembly, the joint debugging test of the high-pressure shell assembly and the low-pressure shell assembly and the energy redundancy switching test of the high-pressure shell assembly and the low-pressure shell assembly. The testing method for the integrated energy redundancy module realizes the reliability verification function of the structure and sealing of the high-pressure shell assembly and the low-pressure shell assembly by the performance debugging of the high-pressure shell assembly and the low-pressure shell assembly, the hydraulic sealing and strength test of the high-pressure cavity and the low-pressure cavity on the integrated block assembly by the servo mechanism energy platform according to the test requirement.

Description

Technical Field

[0001] This invention relates to the technical field of servo mechanism testing, and more specifically, to a testing device and method for an integrated energy redundancy module. Background Technology

[0002] The servo mechanism is a core component of the launch vehicle, playing a crucial role in attitude control. The high- and low-pressure shell assemblies, as key components of the servo mechanism, are essential carriers of the core technology directly channeling high-pressure kerosene from the engine. They regulate the pressure and flow to achieve constant pressure and flow of high-pressure energy. The servo mechanism employs energy selection valves to achieve hydraulic energy redundancy. These energy selection valves consist of two 2-position 3-way valves. Two oil sources simultaneously enter the energy selection valves. Under normal operating conditions, the two oil sources supply oil to the two servo mechanisms respectively. When one oil source fails, causing a drop in oil pressure, and the pressure difference across the energy selection valve exceeds the designed switching pressure difference, the energy selection valve switches, and the oil source with normal pressure replaces the faulty oil source to supply oil to the servo mechanism. The two 2-position 3-way valves can be installed on the two servo mechanisms respectively and connected to each other via hoses.

[0003] Chinese invention patent document CN103673784A discloses a hydraulic power device for a launch vehicle servo mechanism. This device comprises a motor, solenoid valve, check valve, accumulator, hydraulic actuator, and hydraulic pump. Before rocket launch, the ground support system starts the motor, which drives the hydraulic pump. Once the system reaches its rated operating pressure, a portion of high-pressure oil accumulates in the accumulator. The solenoid valve closes, the motor stops, and the check valve and solenoid valve seal this portion of high-pressure oil within the accumulator. At engine ignition, the solenoid valve opens, releasing the high-pressure hydraulic oil accumulated in the accumulator, providing instantaneous hydraulic power for the servo mechanism. Subsequently, the engine turbopump pumps kerosene to build up pressure, the hydraulic actuator operates, and the hydraulic power becomes the flight power for the servo mechanism.

[0004] Regarding the existing technologies mentioned above, the inventors believe that the high and low pressure housing assembly debugging fixtures adopt an integrated design. The existing high and low pressure housing pressure test fixtures use a combination of cover plates and pipelines for pressure testing, and use the main body as the joint test fixture. This has problems such as a large number of fixtures, weak integration, a large number of pipeline connections, and low sealing reliability. Therefore, it is necessary to independently design an integrated energy redundancy module testing method. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the purpose of this invention is to provide a testing device and method for an integrated energy redundancy module.

[0006] A test device for an integrated energy redundancy module according to the present invention includes a high-voltage housing assembly, a low-voltage housing assembly, and an integrated block assembly;

[0007] The integrated block assembly is connected to the high-pressure housing assembly and the low-pressure housing assembly respectively;

[0008] This testing device enables hydraulic sealing strength tests of high and low pressure housing components, joint commissioning tests of high and low pressure housing components, and energy redundancy switching tests of high and low pressure housing components.

[0009] Preferably, the high-pressure housing assembly includes a high-pressure housing, a first coarse oil filter, a flow limiting valve, a one-way valve, a relief valve, a high-pressure safety valve, and an energy selection valve;

[0010] The first coarse oil filter, flow limiting valve, check valve, overflow valve, high-pressure safety valve, and energy selection valve are housed inside the high-pressure housing;

[0011] The high-pressure housing is provided with a high-pressure drain connector, a first high-pressure connector, and a second high-pressure connector.

[0012] The integrated block component includes an integrated block;

[0013] The integrated block is equipped with a high-pressure pipe interface, a low-pressure pipe interface, and a pressure sensor interface.

[0014] The low-pressure housing assembly includes a low-pressure housing, a second coarse oil filter, a hydraulic check valve, and a low-pressure safety valve.

[0015] The second coarse oil filter, the hydraulic check valve, and the low-pressure safety valve are housed within the low-pressure housing;

[0016] A low-pressure drain connector is provided on the low-pressure housing;

[0017] The oil inlet end of the first coarse oil filter is connected to a high-pressure drain connector;

[0018] The oil outlet of the first coarse oil filter is connected to the oil inlet of the flow limiting valve;

[0019] The oil outlet of the flow limiting valve is connected to the oil inlet of the check valve and the hydraulic control oil outlet of the hydraulic check valve, respectively.

[0020] The oil outlet of the one-way valve is connected to the oil inlet of the overflow valve, the oil inlet of the high-pressure safety valve, the oil inlet of the energy selection valve, the first high-pressure connector, and the high-pressure pipe connector, respectively.

[0021] The first oil outlet of the energy selection valve is connected to a pressure sensor connector.

[0022] The second oil outlet of the energy selection valve is connected to the second high-pressure connector.

[0023] The outlet of the overflow valve is connected to the outlet of the high-pressure safety valve, the low-pressure pipe joint, the inlet of the hydraulic check valve, and the inlet of the low-pressure safety valve, respectively.

[0024] The oil outlet of the hydraulic control check valve is connected to the oil outlet of the low-pressure safety valve and the oil inlet of the second coarse oil filter, respectively.

[0025] The oil outlet of the second coarse oil filter is connected to a low-pressure drain connector.

[0026] Preferably, a pressure cover or pressure sensor is detachably provided on the pressure sensor interface.

[0027] Preferably, a first high-pressure plug is detachably provided on the first high-pressure connector;

[0028] A second high-pressure plug is detachably installed on the second high-pressure connector;

[0029] A third high-pressure plug is detachably installed on the high-pressure drain connector;

[0030] The low-pressure drain connector is detachably equipped with a first low-pressure plug cap;

[0031] A fourth high-pressure plug cap is detachably provided on the high-pressure pipe joint;

[0032] A second low-pressure plug is detachably installed on the low-pressure pipe joint.

[0033] Preferably, the high-pressure pipe interface and the low-pressure pipe interface are each detachably equipped with a servo mechanism energy station.

[0034] Preferably, the pressure sensor is connected to a test recorder via a test cable.

[0035] Preferably, when the test device performs a high- and low-pressure housing component energy redundancy switching test, the test device is configured as one and another, with the first high-pressure connector of one test device connected to the second high-pressure connector of the other test device via a first high-pressure hose;

[0036] The second high-pressure connector of one test device is connected to the first high-pressure connector of another test device via a second high-pressure hose.

[0037] The pressure sensor is connected to the test recorder via a test cable.

[0038] According to a test method for an integrated energy redundancy module provided by the present invention, when the test device for the integrated energy redundancy module is used to perform hydraulic sealing strength tests on high and low pressure housing components, the pressure cover plate is connected to the pressure sensor connector.

[0039] The first high-pressure connector and the first high-pressure plug are connected;

[0040] Connect the second high-pressure connector and the second high-pressure plug.

[0041] Connect the high-pressure drain connector and the third high-pressure plug;

[0042] The low-pressure drain connector is connected to the first low-pressure plug.

[0043] The high-pressure pipe connector and the low-pressure pipe connector are respectively connected to the servo mechanism's energy station;

[0044] The high-pressure oil of the servo mechanism energy station enters the high-pressure chamber pipeline of the integrated block assembly through the high-pressure pipe joint of the integrated block assembly, and then enters the high-pressure chamber of the high-pressure housing assembly through the interface between the high-pressure chamber inside the integrated block assembly and the high-pressure chamber inside the high-pressure housing assembly, completing the hydraulic sealing and strength test in the high-pressure chambers of the high and low-pressure housing assemblies.

[0045] The low-pressure oil of the servo mechanism's energy station enters the low-pressure chamber pipeline of the integrated block assembly through the low-pressure pipe joint of the integrated block assembly. Then, it enters the low-pressure chamber of the high-pressure housing assembly and the low-pressure chamber of the low-pressure housing assembly through the interfaces of the low-pressure chamber of the integrated block assembly, respectively, to complete the hydraulic sealing and strength test in the low-pressure chamber of the high-pressure and low-pressure housing assemblies.

[0046] According to the test method of the integrated energy redundancy module provided by the present invention, when the test device of the integrated energy redundancy module is used to conduct the joint debugging test of the high and low pressure housing components, the pressure sensor and the pressure sensor connector are connected.

[0047] The first high-pressure connector and the first high-pressure plug are connected;

[0048] Connect the second high-pressure connector and the second high-pressure plug.

[0049] Connect the high-pressure pipe fitting and the fourth high-pressure plug cap;

[0050] Connect the low-pressure pipe fitting and the second low-pressure plug cap;

[0051] The high-pressure drain connector connects to the high-pressure oil inlet pipe of the high-pressure kerosene pump station;

[0052] The low-pressure drain connector is connected to the low-pressure return oil pipe of the high-pressure kerosene pump station;

[0053] The pressure-flow characteristics of the high- and low-pressure shell components were tested by adjusting the pressure of the high-pressure kerosene pump station system.

[0054] According to the test method of the integrated energy redundancy module provided by the present invention, and using the test device of the integrated energy redundancy module, when the test device performs energy redundancy switching test on high and low pressure housing components,

[0055] Connect the high-pressure pipe fitting and the fourth high-pressure plug cap;

[0056] Connect the low-pressure pipe fitting and the second low-pressure plug cap;

[0057] A high-pressure drain connector of a test device is connected to the first high-pressure oil inlet pipe of a high-pressure kerosene pump station.

[0058] Another test device's high-pressure drain connector is connected to the second high-pressure oil inlet pipe of the high-pressure kerosene pump station;

[0059] A low-pressure drain connector of a test device is connected to the first low-pressure return oil pipe of a high-pressure kerosene pump station.

[0060] The low-pressure drain connector of another test device is connected to the second low-pressure return oil pipe of the high-pressure kerosene pump station;

[0061] The high-pressure kerosene pump station adjusts the system pressure of the independent oil source to simulate the test conditions where the pressure difference between the overflow valves of the high-pressure and low-pressure housing components is less than or greater than the switching pressure difference of the energy selection valve, thus testing the energy redundancy switching function of the high-pressure and low-pressure housing components.

[0062] Compared with the prior art, the present invention has the following beneficial effects:

[0063] 1. The testing method of the integrated energy redundancy module of the present invention achieves the reliability verification function of the structure and sealing of the high and low pressure housing components by adjusting the performance of the high and low pressure housing components and conducting hydraulic sealing and strength tests on the high and low pressure chambers of the integrated block components separately through the servo mechanism energy platform according to the test requirements.

[0064] 2. This invention directly supplies high-pressure oil to the high and low pressure shell components through a high-pressure kerosene pump station. The overflow valve and flow limiting valve in the high-pressure shell component regulate the pressure and flow of the high-pressure oil to achieve the function of constant pressure and constant flow.

[0065] 3. This invention supplies oil to two sets of high-pressure and low-pressure housing components through two independent oil sources in a high-pressure kerosene pump station. The pressure of the overflow valves of the two sets of high-pressure and low-pressure housing components is adjusted to simulate the test condition where the pressure difference between the overflow valves of the two sets of high-pressure and low-pressure housing components is less than or greater than the switching pressure difference of the energy selection valve. By monitoring the pressure sensor of the integrated block component, the redundancy switching function of the high-pressure and low-pressure energy redundancy module is realized.

[0066] 4. This invention optimizes the testing process of high and low voltage housing components by providing a testing device for the energy redundancy module of high and low voltage housing components of servo mechanisms, thereby improving the testing efficiency of products and having broad reference value for other models. Attached Figure Description

[0067] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0068] Figure 1 This is a hydraulic schematic diagram of the integrated energy redundancy module of the present invention;

[0069] Figure 2 This is a hydraulic schematic diagram for testing the redundancy function of the integrated energy redundancy module of the present invention.

[0070] Figure 3 This is a schematic diagram of the hydraulic seal and strength test structure of the integrated energy redundancy module of the present invention;

[0071] Figure 4 This is a schematic diagram of the integrated energy redundancy module test structure of the present invention;

[0072] Figure 5 This is a schematic diagram of the redundancy function test structure of the integrated energy redundancy module of the present invention.

[0073] Figure label:

[0074] High-pressure housing assembly 1, low-pressure pipe connector 7, second low-pressure plug 13

[0075] Integrated module assembly 2, high-pressure pipe connector 8, pressure sensor 14

[0076] Low-pressure housing assembly 3, first high-pressure plug 9, integrated block 15

[0077] First low-pressure cap 4; Second high-pressure cap 10; First high-pressure hose 16

[0078] Pressure cover 5, Third high-pressure plug 11, Second high-pressure hose 17

[0079] Eye bolt 6; Fourth high-pressure plug 12 Detailed Implementation

[0080] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0081] This invention discloses an integrated energy redundancy module testing device, such as... Figure 1 and Figure 2 As shown, it includes a high-pressure housing assembly 1, a low-pressure housing assembly 3, and an integrated block assembly 2.

[0082] Integrated module 2 is connected at one end to high-pressure housing assembly 1 and at the other end to low-pressure housing assembly 3. High-pressure housing assembly 1 consists of a coarse oil filter, a flow restrictor valve, a check valve, a relief valve, a high-pressure safety valve, and an energy selection valve. Low-pressure housing assembly 3 consists of a coarse oil filter, a hydraulically controlled check valve, and a low-pressure safety valve. This integrated energy redundancy module testing device can perform hydraulic sealing strength tests on high and low-pressure housing assemblies 3, joint commissioning tests on high and low-pressure housing assemblies, and energy redundancy switching tests on high and low-pressure housing assemblies.

[0083] When conducting hydraulic sealing and strength tests on high- and low-pressure housing components, the testing device includes a high-pressure housing component 1, a low-pressure housing component 3, and an integrated block component 2. One end of the integrated block component 2 is connected to the high-pressure housing component 1, and the other end is connected to the low-pressure housing component 3. The integrated block component 2 consists of an integrated block 15, a pressure cover plate 5, a high-pressure pipe connector 8, a low-pressure pipe connector 7, and a lifting eye screw 6. The high-pressure chamber inside the integrated block 15 is directly connected to the high-pressure chambers of the high-pressure housing component 1 and the low-pressure housing component 3, and the low-pressure chamber inside the integrated block 15 is directly connected to the low-pressure chambers of the high-pressure housing component 1 and the low-pressure housing component 3.

[0084] When conducting joint debugging tests on high- and low-pressure housing components, the testing device includes a high-pressure housing component 1, a low-pressure housing component 3, and an integrated block component 2. One end of the integrated block component 2 is connected to the high-pressure housing component 1, and the other end is connected to the low-pressure housing component 3. The integrated block component 2 consists of an integrated block 15, a pressure sensor 14, a high-pressure plug, a low-pressure plug, and a lifting eye screw 6. The high-pressure chamber inside the integrated block 15 is directly connected to the high-pressure chambers of the high-pressure housing component 1 and the low-pressure housing component 3, and the low-pressure chamber inside the integrated block 15 is directly connected to the low-pressure chambers of the high-pressure housing component 1 and the low-pressure housing component 3.

[0085] When conducting energy redundancy switching tests on two sets of high- and low-pressure housing assemblies, the test device includes a high-pressure housing assembly 1, a low-pressure housing assembly 3, and an integrated block assembly 2. Integrated block assembly 2 is connected to the high-pressure housing assembly 1 at one end and to the low-pressure housing assembly 3 at the other end. Integrated block assembly 2 consists of an integrated block 15, a pressure sensor 14, a high-pressure plug, a low-pressure plug, and lifting eye screws 6. The high-pressure chamber inside integrated block 15 is directly connected to the high-pressure chambers of both high-pressure and low-pressure housing assemblies 1 and 3, respectively, and the low-pressure chamber inside integrated block 15 is directly connected to the low-pressure chambers of both high-pressure and low-pressure housing assemblies 1 and 3. Two high-pressure connectors of one set of high-pressure housing assembly 1 are connected to two high-pressure connectors of the other set of high-pressure housing assembly 1.

[0086] The integrated block assembly 2 of the testing device is equipped with lifting eye screws 6, which facilitates the hoisting and transportation of the testing device.

[0087] like Figure 1As shown, the dashed part of the high-pressure housing assembly 1 indicates that the assembly includes a coarse oil filter, a flow restrictor valve, a check valve, a relief valve, a high-pressure safety valve, an energy selection valve, and a high-pressure housing; the dashed part of the low-pressure housing assembly 3 indicates that the assembly includes a coarse oil filter, a hydraulically controlled check valve, a low-pressure safety valve, and a low-pressure housing; the dashed part of the integrated block assembly 2 indicates that the assembly includes a pressure sensor 14 and an integrated block 15.

[0088] Specifically, the high-pressure housing assembly 1 includes a high-pressure housing, a first coarse oil filter, a flow limiting valve, a check valve, a relief valve, a high-pressure safety valve, and an energy selection valve; the first coarse oil filter, the flow limiting valve, the check valve, the relief valve, the high-pressure safety valve, and the energy selection valve are disposed inside the high-pressure housing; a high-pressure drain connector, a first high-pressure connector, and a second high-pressure connector are disposed on the high-pressure housing.

[0089] The integrated block assembly 2 includes an integrated block 15; the integrated block 15 is provided with a high-pressure pipe interface, a low-pressure pipe interface and a pressure sensor 14 interface.

[0090] The low-pressure housing assembly 3 includes a low-pressure housing, a second coarse oil filter, a hydraulically controlled check valve, and a low-pressure safety valve; the second coarse oil filter, the hydraulically controlled check valve, and the low-pressure safety valve are disposed inside the low-pressure housing; a low-pressure drain connector is provided on the low-pressure housing.

[0091] The inlet end of the first coarse oil filter is connected to a high-pressure drain connector.

[0092] The outlet of the first coarse oil filter is connected to the inlet of the flow restrictor valve.

[0093] The oil outlet of the flow limiting valve is connected to the oil inlet of the check valve and the hydraulic control oil outlet of the hydraulic control check valve, respectively.

[0094] The oil outlet of the check valve is connected to the oil inlet of the relief valve, the oil inlet of the high-pressure safety valve, the oil inlet of the energy selection valve, the first high-pressure connector, and the high-pressure pipe connector 8.

[0095] The first outlet of the energy selection valve is connected to the pressure sensor connector 14.

[0096] The second oil outlet of the energy selection valve is connected to the second high-pressure connector.

[0097] The outlet of the overflow valve is connected to the outlet of the high-pressure safety valve, the low-pressure pipe joint 7, the inlet of the hydraulic check valve, and the inlet of the low-pressure safety valve.

[0098] The oil outlet of the hydraulic check valve is connected to the oil outlet of the low-pressure safety valve and the oil inlet of the second coarse oil filter.

[0099] The oil outlet of the second coarse oil filter is connected to a low-pressure drain connector.

[0100] A pressure cover plate 5 or pressure sensor 14 is detachably installed on the interface of pressure sensor 14.

[0101] A first high-pressure plug 9 is detachably installed on the first high-pressure connector.

[0102] A second high-pressure plug cap 10 is detachably installed on the second high-pressure connector.

[0103] A third high-pressure plug cap 11 is detachably installed on the high-pressure drain connector.

[0104] A first low-pressure plug cap 4 is detachably installed on the low-pressure drain connector.

[0105] A fourth high-pressure plug cap 12 is detachably installed on the high-pressure pipe connector 8.

[0106] A second low-pressure plug cap 13 is detachably installed on the low-pressure pipe joint 7.

[0107] Pressure sensor 14 is connected to a test recorder via a test cable.

[0108] When the test device performs energy redundancy switching tests on high and low pressure housing components, the test device is set up as one and another. The first high-pressure connector of one test device is connected to the second high-pressure connector of the other test device through the first high-pressure hose 16; the second high-pressure connector of one test device is connected to the first high-pressure connector of the other test device through the second high-pressure hose 17; the pressure sensor 14 is connected to the test recorder through the test cable.

[0109] This invention also discloses a testing method for an integrated energy redundancy module, comprising the following:

[0110] During the hydraulic sealing and strength tests of the high and low pressure housing assemblies, the drain joints of the high and low pressure housing assemblies are sealed with plugs, and the interface of pressure sensor 14 on integrated block assembly 2 is sealed with pressure cover plate 5. The high-pressure oil from the servo mechanism energy station enters the high-pressure chamber pipeline of integrated block 15 through the high-pressure pipe joint 8 of integrated block assembly 2, and then directly enters the high-pressure chamber of high-pressure housing assembly 1 and the high-pressure chamber at the hydraulic control port of low-pressure housing assembly 3 through the interface between the high-pressure chamber of integrated block assembly 2 and the high-pressure chamber inside high-pressure housing assembly 1, completing the hydraulic sealing and strength tests in the high-pressure chambers of the high and low pressure housing assemblies. The low-pressure oil from the servo mechanism energy station enters the low-pressure chamber pipeline of integrated block 15 through the low-pressure pipe joint 7 of integrated block assembly 2, and then directly enters the low-pressure chambers of high-pressure housing assembly 1 and low-pressure housing assembly 3 through the interface between the low-pressure chamber of integrated block assembly 2 and the low-pressure chambers inside high-pressure housing assembly 1 and low-pressure housing assembly 3, completing the hydraulic sealing and strength tests in the low-pressure chambers of high and low pressure housing assemblies 3.

[0111] The standard for hydraulic sealing strength testing of high and low pressure housing components is as follows: According to the aerospace industry standard QJ2478 "Assembly and Testing Specifications for Electro-hydraulic Servo Mechanisms and Their Components", hydraulic sealing and pressure resistance tests need to be carried out on the high and low pressure parts of the electro-hydraulic servo mechanism components to assess the sealing reliability and structural strength of the parts. It is required to ensure that no abnormal phenomena such as oil leakage, permanent deformation of parts, obvious cracking of connections, elongation or loosening of fasteners, and abnormal communication between internal cavities are allowed during the test.

[0112] During the joint commissioning test of the high-pressure and low-pressure housing components, the high-pressure pipe connector 8 and the low-pressure pipe connector 7 on the integrated component are replaced with high-pressure plugs and low-pressure plugs, respectively (the high-pressure plug isolates the high-pressure chamber inside the integrated block component 2 from the outside air during the test, and the low-pressure plug isolates the low-pressure chamber inside the integrated block component 2 from the outside air during the test). The pressure cover plate 5 on the integrated block 15 is replaced with a pressure sensor 14. The test recorder and the pressure sensor 14 are connected through a test cable to monitor the pressure on the high-pressure pipeline. The high-pressure oil inlet pipe of the high-pressure kerosene pump station is connected to the high-pressure drain connector on the high-pressure housing component 1, and the low-pressure oil return pipe is connected to the low-pressure drain connector on the low-pressure housing component 3. By adjusting the system pressure of the high-pressure kerosene pump station, the pressure-flow characteristics of the high-pressure and low-pressure housing components are tested.

[0113] The standard for the joint commissioning test of high and low pressure housing components is as follows: According to the technical conditions of the electro-hydraulic servo mechanism, it is necessary to conduct a matching test on the valve combination in the high and low pressure housing components of the electro-hydraulic servo mechanism to assess the stability of pressure and flow, and ensure that the hydraulic system does not exhibit abnormal phenomena such as whistling vibration or uncontrollable behavior.

[0114] During the energy redundancy switching test of the high and low pressure housing components, two sets of high and low pressure housing component joint debugging and testing devices are used in parallel for testing. The first high-pressure connector of the high-pressure housing component 1 on the first integrated energy redundancy module testing device is connected to the second high-pressure connector of the high-pressure housing component 1 on the second integrated energy redundancy module testing device through a high-pressure hose. The second high-pressure connector of the high-pressure housing component 1 on the first integrated energy redundancy module testing device is connected to the first high-pressure connector of the high-pressure housing component 1 on the second integrated energy redundancy module testing device through a high-pressure hose. The high-pressure oil inlet pipe and low-pressure oil return pipe of the two independent oil sources of the high-pressure kerosene pump station are respectively connected to the high and low pressure drain connectors on the two sets of high and low pressure housing component joint debugging and testing devices. The system pressure of the two independent oil sources is adjusted respectively. The test recorder and the pressure sensor 14 of the integrated component on the integrated energy redundancy module testing device are connected through the test cable to monitor the pressure on the high-pressure oil circuit of the high and low pressure housing components. The test condition of the pressure difference between the overflow valves of the two sets of high and low pressure housing components being less than or greater than the switching pressure difference of the energy selection valve is simulated to test the energy redundancy switching function of the high and low pressure housing components.

[0115] This section discusses the interconnection between two sets of high- and low-pressure housing assemblies only during the energy switching test of the high- and low-pressure housing assemblies. The oil outlet of the energy selection valve in the first high- and low-pressure housing assembly is connected to the first high-pressure connector. Then, a high-pressure hose is used to connect the first high-pressure connector to the second high-pressure connector on the second high- and low-pressure housing assembly. Similarly, the oil outlet of the energy selection valve in the second high- and low-pressure housing assembly is connected to the first high-pressure connector. Finally, a high-pressure hose is used to connect the first high-pressure connector to the second high-pressure connector on the second high- and low-pressure housing assembly.

[0116] The standard for energy redundancy switching tests of high and low pressure housing components is as follows: Based on the technical conditions of the electro-hydraulic servo mechanism, energy redundancy switching tests need to be conducted on the energy modules of the high and low pressure housing components to which the electro-hydraulic servo mechanism belongs. By building an interconnection test platform for the energy redundancy modules of the high and low pressure housing components, different fault modes are simulated to assess the energy redundancy switching function. The electro-hydraulic servo mechanism can achieve autonomous fault detection and autonomous switching through the energy selection valve to ensure that the system can work normally in the event of a fault in one energy source.

[0117] The present invention provides a testing method for an integrated energy redundancy module, which mainly includes an integrated energy redundancy module testing device and a testing method thereof, such as... Figure 1 As shown, the testing device includes a high-pressure housing assembly 1, a low-pressure housing assembly 3, and an integrated block assembly 2. One end of the integrated block assembly 2 is connected to the high-pressure housing assembly 1, and the other end is connected to the low-pressure housing assembly 3. The high-pressure housing assembly 1 consists of a coarse oil filter, a flow restrictor valve, a check valve, a relief valve, a high-pressure safety valve, and an energy selection valve. The low-pressure housing assembly 3 consists of a coarse oil filter, a hydraulically controlled check valve, and a low-pressure safety valve. This invention designs a testing device for the energy redundancy module of the high and low-pressure housing assemblies of a servo mechanism, realizing multiple testing functions such as hydraulic sealing and strength testing of the high and low-pressure housing assemblies, joint debugging testing, and energy redundancy module testing.

[0118] Combination Figure 3As shown, during the hydraulic sealing and strength tests of the high and low pressure housing assemblies, the high pressure drain joint of the high pressure housing assembly 1 is sealed by the first high pressure plug 9, the second high pressure plug 10, and the third high pressure plug 11, respectively. The low pressure drain joint of the low pressure housing assembly 3 is sealed by the first low pressure plug 4, respectively. The interface of the pressure sensor 14 on the integrated block assembly 2 is sealed by the pressure cover plate 5. The high pressure oil of the servo mechanism energy station enters the high pressure chamber pipeline of the integrated block 15 through the high pressure pipe joint 8 of the integrated block assembly 2. Then, through the interface between the high pressure chamber of the integrated block assembly 2 and the high pressure chamber in the high pressure housing assembly 1, it directly enters the high pressure chamber of the high pressure housing assembly 1 and the high pressure chamber at the hydraulic control port of the hydraulic control check valve of the low pressure housing assembly 3, thus completing the hydraulic sealing and strength tests in the high pressure chambers of the high and low pressure housing assemblies. When conducting hydraulic sealing and strength tests on high-pressure and low-pressure housing assemblies, both high-pressure housing assembly 1 and low-pressure housing assembly 3 contain high-pressure and low-pressure chambers. The two assemblies are internally connected through the high-pressure chamber in the integrated assembly, and internally connected through the low-pressure chamber. Then, the high-pressure and low-pressure chambers are tested and evaluated accordingly.

[0119] The low-pressure hydraulic fluid from the servo mechanism's energy station enters the low-pressure chamber pipeline of integrated block 15 through the low-pressure pipe connector 7 of integrated block assembly 2. Then, through the interface between the low-pressure chamber of integrated block assembly 2 and the low-pressure chambers within high-pressure housing assembly 1 and low-pressure housing assembly 3, it directly enters the low-pressure chambers of high-pressure housing assembly 1 and low-pressure housing assembly 3, completing the hydraulic sealing and strength tests within the low-pressure chambers of the high and low-pressure housing assemblies. During the hydraulic sealing and strength tests of the high and low-pressure housing assemblies, since the low-pressure chambers inside high and low-pressure housing assembly 3 are connected through the low-pressure chamber inside integrated block assembly 2, hydraulic oil is introduced into the low-pressure chambers of the high and low-pressure housing assemblies through the low-pressure connector using a pump station to conduct the hydraulic sealing and strength tests.

[0120] Combination Figure 4 During the joint commissioning test of the high and low pressure housing components, the high pressure pipe joint 8 and the low pressure pipe joint 7 on the integrated component are replaced by the fourth high pressure plug 12 and the second low pressure plug 13, respectively. The pressure cover plate 5 on the integrated block 15 is replaced with the pressure sensor 14. The test recorder and the pressure sensor 14 are connected through the test cable to monitor the pressure on the high pressure pipeline. The high pressure oil inlet pipe of the high pressure kerosene pump station is connected to the high pressure drain joint on the high pressure housing component 1, and the low pressure return oil pipe is connected to the low pressure drain joint on the low pressure housing component 3. By adjusting the pressure of the high pressure kerosene pump station system, the pressure and flow characteristics of the high and low pressure housing components are tested.

[0121] During the joint commissioning and testing of the high-pressure and low-pressure housing components, the high-pressure pump station uses a high-pressure hose to introduce high-pressure oil into the coarse oil filter (which filters impurities in the oil). After flowing through the flow-limiting valve (which serves to build pressure and stabilize the working flow), the oil is divided into two oil circuits. One oil circuit enters the check valve (which opens in the forward direction and closes in the reverse direction). After flowing through the inlet of the relief valve (which serves to stabilize the working pressure), the main valve port of the relief valve opens, and the oil changes from high-pressure oil to low-pressure oil. It then enters the main valve inlet of the hydraulically controlled check valve. The other branch, after flowing through the flow-limiting valve, enters the hydraulic control chamber of the hydraulically controlled check valve. The main valve core of the hydraulically controlled check valve is opened, and the low-pressure oil from the outlet of the relief valve flows through the main valve port of the hydraulically controlled check valve, and then returns to the oil tank of the pump station through the coarse oil filter and the low-pressure hose in sequence. The high-pressure safety valve and the low-pressure safety valve are normally closed, providing safety protection in the high-pressure oil circuit and the low-pressure oil circuit, respectively. The high-pressure oil at the inlet of the relief valve flows to the pressure sensor 14 of the integrated block component 2 through the normally open main valve of the energy selection valve. The pressure sensor 14 monitors the inlet pressure of the relief valve in real time. According to the technical specifications of the system, the relief valve and the flow limiting valve are adjusted to achieve the purpose of constant pressure and constant flow conditioning.

[0122] Combination Figure 2 and Figure 5 During the energy redundancy switching test of the high and low voltage housing components, two sets of high and low voltage housing component joint debugging and testing devices are connected in parallel for testing. The first high voltage connector of the high voltage housing component 1 on the first integrated energy redundancy module testing device is connected to the second high voltage connector of the high voltage housing component 1 on the second integrated energy redundancy module testing device through the second high voltage hose 17, and the second high voltage connector of the high voltage housing component 1 on the first integrated energy redundancy module testing device is connected to the first high voltage connector of the high voltage housing component 1 on the second integrated energy redundancy module testing device through the first high voltage hose 16. The high-pressure kerosene pump station connects its two independent oil sources—the high-pressure inlet pipe and the low-pressure return pipe—to the high- and low-pressure drain connectors on the two sets of high- and low-pressure housing assembly joint testing devices. The system pressure of the two independent oil sources is adjusted accordingly. The test recorder and the pressure sensor 14, which is matched with the integrated component on the integrated energy redundancy module testing device, are connected through a test cable to monitor the pressure on the high-pressure oil lines of the high- and low-pressure housing assemblies. The test conditions are simulated, where the pressure difference between the overflow valves of the two sets of high- and low-pressure housing assemblies is less than or greater than the switching pressure difference of the energy selection valve, to test the energy redundancy switching function of the high- and low-pressure housing assemblies.

[0123] During the energy redundancy switching test of the high- and low-pressure housing assemblies, an interconnection test platform needs to be built using two sets of integrated testing devices for the high- and low-pressure housing assemblies. The oil outlet of the energy selection valve in the first high- and low-pressure housing assembly is connected to the first high-pressure connector, and then a high-pressure hose is used to connect the first high-pressure connector to the second high-pressure connector on the second high- and low-pressure housing assembly. Similarly, the oil outlet of the energy selection valve in the second high- and low-pressure housing assembly is connected to the first high-pressure connector, and then a high-pressure hose is used to connect the first high-pressure connector to the second high-pressure connector on the second high- and low-pressure housing assembly. The high-pressure pump station independently outputs two high-pressure oil sources. One source connects to the first set of high- and low-pressure housing assemblies, similar to the integrated oil circuit of the high- and low-pressure housing assemblies. The high-pressure oil flows through a high-pressure hose, a coarse oil filter, a flow restrictor valve, a check valve, a relief valve, a high-pressure safety valve, and an energy selection valve. A pressure sensor 14 is connected to the outlet of the energy selection valve's main valve to monitor the pressure in the high-pressure oil circuit. After the high-pressure oil passes through the main valve of the relief valve and becomes low-pressure oil, it flows through a hydraulically controlled check valve, a low-pressure safety valve, a coarse oil filter, and a low-pressure hose before returning to the pump station's oil tank. The other source connects to the second set of high- and low-pressure housing assemblies, with a similar oil flow path to the first set. During energy redundancy testing, the pressure of the relief valves in the two sets of high- and low-pressure housing assemblies is adjusted. When the pressure difference between the relief valves exceeds the switching pressure of the energy selection valve, the energy selection valve switches, achieving the energy redundancy switching function. For example, if the pressure of the relief valve in the first high- and low-pressure housing assembly is higher than the pressure of the relief valve in the second high- and low-pressure housing assembly, and the pressure difference is greater than the switching pressure of the energy selection valve, then the energy selection valve in the second high- and low-pressure housing assembly will switch, diverting the high-pressure oil from the first circuit of the pump station to both the first high-pressure housing assembly and the second high- and low-pressure housing assembly, isolating it from the high-pressure oil from the second oil source of the pump station, thus achieving the function of energy switching. When the inlet pressure of the relief valves in both high- and low-pressure housing assemblies is less than the switching pressure of the energy selection valve, the two energy selection valves operate independently, and no energy switching action occurs.

[0124] The above describes the entire testing process for high and low pressure housing components. In actual testing, different test modules can be combined according to specific testing requirements to obtain different test procedures and meet the testing requirements of different high and low pressure housing components.

[0125] This invention specifically provides a testing method for hydraulic sealing and strength testing of high and low pressure housing components, joint testing of high and low pressure housing components, and energy redundancy switching between two sets of high and low pressure housing components.

[0126] This device uses an integrated pressure testing fixture to complete the pressure test and conduct joint commissioning and testing to test the constant pressure and constant current performance of the high and low pressure shells. It also has the function of switching redundant energy between two sets of high and low pressure shell components. Considering the heavy weight of the test fixture, high pressure shell component 1 and low pressure shell component 3, lifting eye screws 6 are designed on the testing fixture to facilitate the handling and turnover of the fixture.

[0127] The test device for the energy redundancy module of the high and low pressure housing components of the servo mechanism realizes multiple test functions, including hydraulic sealing and strength testing, joint debugging testing, and energy redundancy module testing of the high and low pressure housing components. It optimizes the testing process of the high and low pressure housing components, improves the testing efficiency of the product, and has broad reference value for other models.

[0128] This invention provides a testing method for an integrated energy redundancy module, mainly comprising an integrated energy redundancy module testing device and its testing method. The testing device includes a high-pressure housing assembly 1, a low-pressure housing assembly 3, and an integrated block assembly 2. One end of the integrated block assembly 2 is connected to the high-pressure housing assembly 1, and the other end is connected to the low-pressure housing assembly 3. The high-pressure housing assembly 1 consists of a coarse oil filter, a flow limiting valve, a check valve, a relief valve, a high-pressure safety valve, and an energy selection valve. The low-pressure housing assembly 3 consists of a coarse oil filter, a hydraulically controlled check valve, and a low-pressure safety valve. This invention designs a testing device for the energy redundancy module of high and low-pressure housing assemblies of a servo mechanism, realizing multiple testing functions such as hydraulic sealing and strength testing, joint debugging testing, and energy redundancy module testing for high and low-pressure housing assemblies. It optimizes the testing process of high and low-pressure housing assemblies, improves product testing efficiency, and has broad reference value for other models.

[0129] Where a represents a high-pressure hose; b represents a coarse oil filter; c represents an overflow valve; d represents a check valve; e represents a flow restrictor valve; f represents a high-pressure safety valve; g represents an energy selection valve; h represents pressure sensor 14; i represents a hydraulically controlled check valve; j represents a low-pressure safety valve; and k represents a low-pressure hose.

[0130] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0131] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A testing device for an integrated energy redundancy module, characterized in that, It includes a high-pressure housing assembly (1), a low-pressure housing assembly (3), and an integrated block assembly (2); The integrated block assembly (2) is connected to the high-pressure housing assembly (1) and the low-pressure housing assembly (3) respectively; The testing device enables hydraulic sealing strength testing, joint commissioning testing, and energy redundancy switching testing of the high-pressure housing assembly (1) and the low-pressure housing assembly (3). The high-pressure housing assembly (1) includes a high-pressure housing, a first coarse oil filter, a flow limiting valve, a check valve, a relief valve, a high-pressure safety valve, and an energy selection valve; The first coarse oil filter, flow limiting valve, check valve, overflow valve, high-pressure safety valve, and energy selection valve are housed inside the high-pressure housing; The high-pressure housing is provided with a high-pressure drain connector, a first high-pressure connector, and a second high-pressure connector. The integrated block assembly (2) includes an integrated block (15); The integrated block (15) is provided with a high-pressure pipe interface, a low-pressure pipe interface and a pressure sensor (14) interface; The low-pressure housing assembly (3) includes a low-pressure housing, a second coarse oil filter, a hydraulic check valve, and a low-pressure safety valve; The second coarse oil filter, the hydraulic check valve, and the low-pressure safety valve are housed within the low-pressure housing; A low-pressure drain connector is provided on the low-pressure housing; The oil inlet end of the first coarse oil filter is connected to a high-pressure drain connector; The oil outlet of the first coarse oil filter is connected to the oil inlet of the flow limiting valve; The oil outlet of the flow limiting valve is connected to the oil inlet of the check valve and the hydraulic control oil outlet of the hydraulic check valve, respectively. The oil outlet of the one-way valve is connected to the oil inlet of the overflow valve, the oil inlet of the high-pressure safety valve, the oil inlet of the energy selection valve, the first high-pressure connector, and the high-pressure pipe connector (8), respectively. The first oil outlet of the energy selection valve is connected to the pressure sensor (14) connector; The second oil outlet of the energy selection valve is connected to the second high-pressure connector. The outlet of the overflow valve is connected to the outlet of the high-pressure safety valve, the low-pressure pipe joint (7), the inlet of the hydraulic check valve, and the inlet of the low-pressure safety valve, respectively. The oil outlet of the hydraulic control check valve is connected to the oil outlet of the low-pressure safety valve and the oil inlet of the second coarse oil filter, respectively. The oil outlet of the second coarse oil filter is connected to a low-pressure drain connector.

2. The testing device for the integrated energy redundancy module according to claim 1, characterized in that, The pressure sensor (14) interface is detachably provided with a pressure cover plate (5) or a pressure sensor (14).

3. The testing device for the integrated energy redundancy module according to claim 2, characterized in that, A first high-pressure plug cap (9) is detachably provided on the first high-pressure connector; A second high-pressure plug (10) is detachably provided on the second high-pressure connector; A third high-pressure plug (11) is detachably installed on the high-pressure drain connector; The low-pressure drain connector is detachably provided with a first low-pressure plug cap (4); A fourth high-pressure plug cap (12) is detachably provided on the high-pressure pipe joint (8); A second low-pressure plug (13) is detachably provided on the low-pressure pipe joint (7).

4. The testing device for the integrated energy redundancy module according to claim 3, characterized in that, The high-pressure pipe interface and the low-pressure pipe interface are each detachably equipped with a servo mechanism energy station.

5. The testing device for the integrated energy redundancy module according to claim 3, characterized in that, The pressure sensor (14) is connected to a test recorder via a test cable.

6. The testing apparatus for the integrated energy redundancy module according to claim 5, characterized in that, When the test device performs the energy redundancy switching test of the high and low pressure shell components, the test device is set up as one and another, and the first high pressure connector of one test device is connected to the second high pressure connector of the other test device through the first high pressure hose (16). The second high-pressure connector of one test device is connected to the first high-pressure connector of another test device via a second high-pressure hose (17); The pressure sensor (14) is connected to the test recorder via a test cable.

7. A test method for an integrated energy redundancy module, characterized in that, When the test device for the integrated energy redundancy module described in claim 3 is used to perform the hydraulic sealing strength test of the high and low pressure housing components, the pressure cover plate (5) is connected to the pressure sensor (14) connector. The first high-pressure connector and the first high-pressure plug (9) are connected; Connect the second high-pressure connector and the second high-pressure plug (10); The high-pressure drain connector and the third high-pressure plug (11) are connected; The low-pressure drain connector is connected to the first low-pressure plug (4); The high-pressure pipe connector (8) and the low-pressure pipe connector (7) are respectively connected to the servo mechanism energy station; The high-pressure oil of the servo mechanism energy station enters the high-pressure chamber pipeline of the integrated block assembly (2) through the high-pressure pipe joint (8) of the integrated block assembly (2), and then enters the high-pressure chamber of the high-pressure housing assembly (1) through the interface between the high-pressure chamber in the integrated block assembly (2) and the high-pressure chamber in the high-pressure housing assembly (1) to complete the hydraulic sealing and strength test in the high-pressure chamber of the high-pressure and low-pressure housing assemblies. The low-pressure oil of the servo mechanism energy station enters the low-pressure chamber pipeline of the integrated block assembly (2) through the low-pressure pipe joint (7) of the integrated block assembly (2), and then enters the low-pressure chamber of the high-pressure housing assembly (1) and the low-pressure housing assembly (3) through the interface of the low-pressure chamber in the integrated block assembly (2) respectively, and completes the hydraulic sealing and strength test in the low-pressure chamber of the low-pressure housing assembly (3).

8. A test method for an integrated energy redundancy module, characterized in that, When the test device for the integrated energy redundancy module described in claim 5 is used to conduct the joint debugging test of the high and low pressure housing components, the pressure sensor (14) and the pressure sensor (14) connector are connected. The first high-pressure connector and the first high-pressure plug (9) are connected; Connect the second high-pressure connector and the second high-pressure plug (10); The high-pressure pipe connector (8) and the fourth high-pressure plug (12) are connected; The low-pressure pipe fitting (7) is connected to the second low-pressure plug (13); The high-pressure drain connector connects to the high-pressure oil inlet pipe of the high-pressure kerosene pump station; The low-pressure drain connector is connected to the low-pressure return oil pipe of the high-pressure kerosene pump station; The pressure-flow characteristics of the high- and low-pressure shell components were tested by adjusting the pressure of the high-pressure kerosene pump station system.

9. A test method for an integrated energy redundancy module, characterized in that, When using the test apparatus for the integrated energy redundancy module as described in claim 6 to perform energy redundancy switching tests on high- and low-pressure housing components, The high-pressure pipe connector (8) and the fourth high-pressure plug (12) are connected; The low-pressure pipe fitting (7) is connected to the second low-pressure plug (13); A high-pressure drain connector of a test device is connected to the first high-pressure oil inlet pipe of a high-pressure kerosene pump station. Another test device's high-pressure drain connector is connected to the second high-pressure oil inlet pipe of the high-pressure kerosene pump station; A low-pressure drain connector of a test device is connected to the first low-pressure return oil pipe of a high-pressure kerosene pump station. The low-pressure drain connector of another test device is connected to the second low-pressure return oil pipe of the high-pressure kerosene pump station; The high-pressure kerosene pump station adjusts the system pressure of the independent oil source to simulate the test conditions where the pressure difference between the overflow valves of the high-pressure and low-pressure housing components is less than or greater than the switching pressure difference of the energy selection valve, thus testing the energy redundancy switching function of the high-pressure and low-pressure housing components.

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