An electric pump testing device

Abstract

The utility model discloses a kind of electric pump testing device, including cabinet, test system being set in cabinet;Cabinet includes platform, and the operating board vertically arranged at the edge of platform, operating board is equipped with at least one for fixing electric pump's fixed tooling;Test system includes the hydraulic station being connected with electric pump, the oil inlet of electric pump is communicated with the oil tank of hydraulic station, between being equipped with oil inlet valve, the oil outlet of shown electric pump and oil tank are sequentially connected with pressure sensor, high pressure pneumatic control valve, electromagnetic reversing valve, proportional relief valve and flowmeter, the utility model has the advantages that, realize the automatic fixing of electric pump, pressure and flow double parameter acquisition, it is convenient to operate, detection precision is high, suitable for electric pump production line factory inspection and laboratory performance test.

Description

Technical Field

[0001] This utility model belongs to the field of electric pump testing technology, and specifically relates to an electric pump testing device. Background Technology

[0002] An electric pump is a device that uses electrical energy to drive a hydraulic mechanism to pressurize and transport oil. It is widely used in automotive braking systems, hydraulic lifting equipment, and industrial hydraulic power units. Because electric pumps need to withstand high-pressure oil flow and long-term continuous operation, their performance stability directly affects the overall reliability of the machine. Therefore, during the production and delivery of electric pumps, each pump must undergo rigorous performance testing, including pressure holding performance, flow output, leakage, and pressure resistance.

[0003] Current electric pump testing methods generally employ temporary testing platforms, where oil pipes and cables are manually connected and an external hydraulic station is activated to complete the test. This structure has several problems: First, the testing system is decentralized, with hydraulic stations, pressure gauges, flow meters and other testing units arranged independently, resulting in complex connections and low testing efficiency; Secondly, most of the oil pipes and cables are exposed, which can easily cause oil leakage, messy wiring, and safety hazards. Third, electric pumps are often fixed with screws or simple clamps during testing. If the clamps are not secure or replacement is inconvenient, it can easily lead to vibration and displacement, affecting the accuracy of the test.

[0004] Therefore, how to provide an integrated, rationally arranged, safe and reliable electric pump testing device to perform comprehensive performance testing of electric pumps under controlled conditions has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] To address the aforementioned issues, this invention provides an electric pump testing device that enables automatic pump fixing, dual parameter acquisition of pressure and flow, convenient operation, and high testing accuracy. It is suitable for factory testing of electric pumps on production lines and laboratory performance testing.

[0006] The technical solution provided by this utility model is as follows: An electric pump testing device includes a cabinet and a testing system installed inside the cabinet; The cabinet includes a platform and an operating panel vertically mounted on the edge of the platform. The operating panel is equipped with at least one fixture for fixing the electric pump. The testing system includes a hydraulic station connected to an electric pump. The oil inlet of the electric pump is connected to the oil tank of the hydraulic station, and an oil inlet valve is provided between them. A pressure sensor, a high-pressure pneumatic control valve, a solenoid directional valve, a proportional relief valve, and a flow meter are connected in sequence between the oil outlet of the electric pump and the oil tank.

[0007] In some embodiments, the fixture includes a mounting plate on the operating panel, a fixing plate parallel to the platform, a limiting seat on one side of the fixing plate, a cylinder on the other side, an opening on one side of the limiting seat, and a pressure plate at the output end of the cylinder, which presses the electric pump inside the limiting seat through the opening.

[0008] In some implementations, a pressure gauge is provided on the control panel, and the pressure gauge is electrically connected to a pressure sensor.

[0009] In some implementations, the control panel has at least two wiring holes with flexible sealing caps. One wiring hole is used for a hose connecting the cylinder and the air source, and the other wiring hole is used for a hose connecting the electric pump and the oil tank.

[0010] In some implementations, a mesh panel is provided on the platform, and an oil leakage collection box is provided below the mesh panel.

[0011] In some implementations, operation buttons and an emergency stop button are provided on the side of the platform.

[0012] In some implementations, a sliding door is provided on the back of the cabinet, and a power switch is located at the bottom of the back of the cabinet.

[0013] In some implementations, the bottom of the cabinet is equipped with support legs and several casters.

[0014] In summary, the beneficial effects of this utility model are as follows: (1) This utility model integrates all the test components of the electric pump into a closed cabinet, which effectively reduces the exposure of the hydraulic system and electrical connections, and avoids the safety hazards that may be caused by high-pressure oil circuits and cables. At the same time, the use of pneumatically driven fixing fixtures makes the installation and disassembly of the electric pump faster and more convenient, improves the operating efficiency, reduces the time required for manual fixing, and optimizes the testing process.

[0015] (2) By integrating a hydraulic station and a sensing system within the cabinet, this utility model can simultaneously monitor the pressure and flow of the electric pump, ensuring the accuracy and consistency of the test data. This design reduces the data inconsistency problem caused by the dispersed layout of multiple devices in traditional testing, and improves the reliability and repeatability of the test results.

[0016] (3) This utility model is designed with an oil leakage collection device, which effectively avoids hydraulic oil spillage and pollution of the operating environment, and ensures the cleanliness of the work area. At the same time, the mobility of the cabinet allows the equipment to be flexibly adjusted in position, which is convenient for daily maintenance and cleaning, and ensures the long-term stable operation of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the hydraulic principle structure of this utility model; Figure 3 This is a schematic diagram of the back structure of this utility model; Figure 4 This is a schematic diagram of the fixed tooling structure of this utility model.

[0018] The attached figures are labeled as follows: 1. Cabinet; 2. Platform; 3. Control panel; 4. Electric pump; 5. Fixed fixture; 6. Hydraulic station; 7. Oil tank; 8. Pressure sensor; 9. High-pressure pneumatic valve; 10. Solenoid directional valve; 11. Proportional relief valve; 12. Flow meter; 13. Pressure gauge; 14. Cable routing hole; 15. Flexible sealing cover; 16. Mesh plate; 17. Operating button; 18. Emergency stop button; 19. Sliding door; 20. Support leg; 21. Fuma wheel; 22. Power switch; 51. Mounting plate; 52. Fixing plate; 53. Limit seat; 54. Cylinder; 55. Pressure plate. Detailed Implementation

[0019] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0020] like Figure 1-4 As shown, this utility model provides an electric pump testing device, including a cabinet 1 and a testing system installed inside the cabinet 1.

[0021] The cabinet 1 includes a platform 2 and an operating panel 3 vertically positioned at the edge of the platform 2. At least one fixing fixture 5 for fixing an electric pump 4 is mounted on the operating panel 3. The fixing fixture 5 can stably position the electric pump during testing and prevent it from shifting due to vibration.

[0022] The testing system includes a hydraulic station 6 connected to an electric pump 4, and an oil tank 7 is installed inside the hydraulic station 6. The oil inlet of the electric pump 4 is connected to the oil tank 7 through an oil inlet pipe equipped with an oil inlet valve; a pressure sensor 8, a high-pressure pneumatic control valve 9, a solenoid directional valve 10, a proportional relief valve 11, and a flow meter 12 are sequentially fluidly connected between the oil outlet of the electric pump 4 and the oil tank 7, which are used to detect oil pressure and flow parameters during the test and to adjust the test under different working conditions by controlling the valve group.

[0023] The control panel 3 is equipped with a pressure gauge 13, which is electrically connected to the pressure sensor 8. The pressure gauge 13 is used to display the pressure value in the pipeline in real time, so that the operator can monitor the working status of the electric pump.

[0024] The fixed fixture 5 includes a mounting plate 51 mounted on the operating panel 3, and a fixing plate 52 parallel to the platform 2 on the mounting plate 51. A limiting seat 53 is provided on one side of the fixing plate 52, and a cylinder 54 is provided on the other side. An opening for placing the electric pump 4 is provided on one side of the limiting seat 53, and a pressure plate 55 is provided at the output end of the cylinder 54. Before testing, the electric pump 4 is placed in the limiting seat 53, and the cylinder 54 is activated, causing the pressure plate 55 to press the electric pump 4 through the opening of the limiting seat, thereby achieving quick and stable clamping and fixing. This structure facilitates the replacement of electric pumps of different specifications, improving operational efficiency.

[0025] To improve operational safety and tidiness, the control panel 3 has at least two wiring holes 14, each with a flexible sealing cap 15. One wiring hole 14 is used to run a hose connecting the cylinder 54 to the air source, and the other wiring hole 14 is used to run a hose connecting the electric pump 4 to the oil tank 7. All hoses are routed inside the cabinet to prevent obstruction of the operator's workspace and ensure operational safety. A large control screen can also be installed on the control panel 3.

[0026] To prevent oil leakage and environmental pollution, a mesh plate 16 is laid on platform 2, and an oil leakage collection box is installed below the mesh plate 16 to collect hydraulic oil that may overflow during the test.

[0027] The side of platform 2 is equipped with operation buttons 17 and emergency stop buttons 18, which are used to control the start and stop of the electric pump and the operation of the hydraulic station. In case of abnormality, the operator can quickly cut off the power supply of the system through the emergency stop button 18 to ensure test safety.

[0028] The back of the cabinet 1 has an openable sliding door 19 for maintenance and line repair. A power switch 20 is located at the bottom of the cabinet. In this embodiment, an Advantech industrial computer is used to control the equipment. The bottom of the cabinet also has support legs 20 and several casters 21. The support legs 20 are used for equipment positioning and load-bearing, while the casters allow for flexible movement of the equipment within the testing area.

[0029] During use, the operator can perform the following operations according to different testing needs: Pressure Holding Test: When the hydraulic station's oil tank inlet valve is open, the electric pump 4 is started to draw oil from the oil tank 7 and pressurize it. Pressure holding is performed with the rear valve closed, and the system pressure is displayed in real time via pressure gauge 13 and pressure sensor 8. By observing pressure changes, the sealing performance and self-pressure holding capability of the electric pump under static conditions can be determined.

[0030] Flow test (no load / load): With the oil tank inlet valve open, start the electric pump 4 and sequentially open the high-pressure pneumatic control valve 9 and the solenoid directional valve 10. Set the pressure condition by adjusting the proportional relief valve 11 (0MPa for no load, up to 31.5MPa). At this time, the flow meter 12 records the flow value at the corresponding pressure to evaluate the output performance and flow characteristics of the electric pump.

[0031] Through the structural design of this utility model, the testing device realizes automatic fixing of electric pumps, dual parameter acquisition of pressure and flow, and overall mobility. It is easy to operate, has high detection accuracy, and is suitable for factory testing of electric pump production lines and laboratory performance testing.

[0032] It should be noted that implementations not shown or described in the accompanying drawings or the main text of the specification are all forms known to those skilled in the art and are not described in detail. Furthermore, the definitions of the elements and methods described above are not limited to the various specific structures, shapes, or methods mentioned in the embodiments.

[0033] It should also be noted that this document provides examples of parameters containing specific values, but these parameters need not be exactly equal to the corresponding values, but can approximate the corresponding values ​​within acceptable error tolerances or design constraints. Directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings and are not intended to limit the scope of protection of this application. The foregoing description illustrates and describes preferred embodiments of this utility model. As mentioned above, it should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge in related fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be within the protection scope of the appended claims.

Claims

1. An electric pump testing device, characterized in that, Includes a cabinet (1) and a test system installed within the cabinet (1); The cabinet (1) includes a platform (2) and an operating plate (3) vertically disposed on the edge of the platform (2). The operating plate (3) is provided with at least one fixing fixture (5) for fixing the electric pump (4). The testing system includes a hydraulic station (6) connected to the electric pump (4). The oil inlet of the electric pump (4) is connected to the oil tank (7) of the hydraulic station (6), and an oil inlet valve is provided between them. A pressure sensor (8), a high-pressure pneumatic control valve (9), an electromagnetic reversing valve (10), a proportional relief valve (11), and a flow meter (12) are sequentially connected between the oil outlet of the electric pump (4) and the oil tank (7).

2. The electric pump testing device according to claim 1, characterized in that, The fixed fixture (5) includes a mounting plate (51) set on the operating plate (3). The mounting plate (51) is provided with a fixing plate (52) set parallel to the platform (2). The fixing plate (52) is provided with a limiting seat (53) on one side and a cylinder (54) on the other side. The limiting seat (53) is provided with an opening on one side. The output end of the cylinder (54) is provided with a pressure plate (55). The pressure plate (55) presses the electric pump (4) in the limiting seat (53) through the opening.

3. The electric pump testing device according to claim 1, characterized in that, The operation panel (3) is equipped with a pressure gauge (13), which is electrically connected to the pressure sensor (8).

4. The electric pump testing device according to claim 2, characterized in that, The control panel (3) has at least two wiring holes (14), and each wiring hole (14) is provided with a flexible sealing cap (15). One of the wiring holes (14) is used to pass through the hose connecting the cylinder (54) and the air source, and the other wiring hole (14) is used to pass through the hose connecting the electric pump (4) and the oil tank (7).

5. The electric pump testing device according to claim 1, characterized in that, The platform (2) is provided with a mesh plate (16), and an oil leakage collection box is provided below the mesh plate (16).

6. The electric pump testing device according to claim 1, characterized in that, The platform (2) is equipped with an operation button (17) and an emergency stop button (18) on its side.

7. The electric pump testing device according to claim 1, characterized in that, The cabinet (1) has a sliding door (19) on the back and a power switch at the bottom of the back.

8. The electric pump testing device according to claim 1, characterized in that, The cabinet (1) is provided with support legs (20) and several casters (21) at the bottom.

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