Electronic oil pump testing device

Abstract

The utility model relates to an electronic oil pump testing device which comprises a bottom plate, an oil tank assembly, an inlet assembly, an outlet assembly and an oil pump mounting assembly, the oil tank assembly, the inlet assembly, the outlet assembly and the oil pump mounting assembly are mounted on the bottom plate, and the oil tank assembly is used for storing oil for testing and filtering the oil. The outlet assembly controls engine oil to enter the oil tank assembly from the oil pump through opening or closing of a precise control valve, different pressure loads are provided for the oil pump by adjusting the opening degree of a valve body, and the oil pump installation assembly is used for oil pump installation and oil pump output pressure monitoring. The oil pump support is easy to machine, small in structure, rapid to assemble and convenient to maintain, meanwhile, the oil pump support connector is assembled universally, different oil pump supports can be directly replaced to complete universality of oil pump testing and assembling, and the testing cost and the testing period are greatly reduced.

Description

Technical Field

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

[0002] Electronic oil pumps are widely used in automotive lubrication systems. They are crucial automotive components that drive the circulation of engine oil to lubricate the engine and transmission. Comprehensive and systematic testing and experimentation are essential during the design and development of oil pumps. In current project development, large-scale dedicated oil pump testing equipment is typically used for product debugging and testing. However, due to the high cost of this equipment (usually in the millions), it suffers from drawbacks such as limited sample quantity, long testing cycles, high testing costs, and low flexibility. This is especially true in the early stages of product development testing, when numerous repeated tests are required. Figure 1 As shown in the diagram (arrows indicate the direction of oil flow), simulating different operating conditions of the oil pump to meet testing requirements is extremely difficult for product development. Therefore, a low-cost, miniaturized oil pump testing device needs to be developed and designed. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a miniaturized electronic oil pump testing device that meets different working conditions and reduces testing cycles and costs.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an electronic oil pump testing device, including a base plate and an oil tank assembly, an inlet assembly, an outlet assembly, and an oil pump mounting assembly, all mounted on the base plate. The oil tank assembly is used to store test oil and filtered oil. The inlet assembly controls the oil to enter the oil pump for testing by opening or closing an inlet switch valve. The outlet assembly controls the oil to enter the oil tank assembly from the oil pump by opening or closing a precision control valve, and provides different pressure loads to the oil pump by adjusting the valve body opening. The oil pump mounting assembly is used for oil pump installation and oil pump output pressure monitoring.

[0005] Preferably, the fuel tank assembly includes a fuel tank and a transparent fuel tank cover. The fuel tank is fixed to the base plate and an oil filter mounting plate and an oil filter are installed in the fuel tank from bottom to top. The fuel tank cover is provided with a fuel tank sealing ring that seals with the fuel tank, and the fuel tank cover is also provided with an oil inlet.

[0006] Preferably, the inlet assembly includes an oil tank interface, an inlet switch valve, a pipeline interface, a first metal hose, and an oil pump bracket interface arranged sequentially along the oil flow direction. The inlet switch valve is fixed to the base plate by a fixing block. The left side of the inlet switch valve is threaded to the oil tank interface. The other side of the oil tank interface, away from the inlet switch valve, is installed to the oil tank by several screws. The right side of the inlet switch valve is threaded to the pipeline interface. A sealing gasket is provided between the first metal hose and the pipeline interface and the oil pump bracket, and clamps are provided at the connection points of the first metal hose with the pipeline interface and the oil pump bracket on both sides. The other side of the oil pump bracket interface, away from the first metal hose, is installed to the oil pump mounting assembly by several screws. At the same time, a first sealing ring is fitted on the other side of the oil tank interface and the other side of the oil pump bracket interface. The threaded connection parts of the inlet switch valve with the oil tank interface and the pipeline interface on both sides are wrapped with waterproof sealing tape.

[0007] Preferably, the outlet assembly includes a precision control valve and a second metal hose. The precision control valve is fixedly mounted on the oil tank with screws. Both sides of the second metal hose are connected to oil pump bracket interfaces, and the connection between the second metal hose and the oil pump bracket interfaces is fixed with clamps. At the same time, the oil pump bracket interfaces on both sides of the second metal hose are respectively mounted on the outlet fixing block and the oil pump mounting assembly. The side of the outlet fixing block away from the oil pump bracket interface is connected to the precision control valve. Sealing gaskets are provided between the second metal hose and the oil pump bracket interface, between the outlet fixing block and the precision control valve, and between the precision control valve and the oil tank. A first sealing ring is provided between the oil pump bracket interface and the outlet fixing block, and between the oil pump bracket interface and the oil pump mounting assembly.

[0008] Preferably, the oil pump mounting assembly includes an oil pump bracket that matches the oil pump assembly, as well as a pressure gauge interface and a pressure gauge. The inlet and outlet of the oil pump bracket are respectively connected to a first metal hose and a second metal hose through the oil pump bracket interface. The pressure gauge interface is sealed and mounted on the oil pump bracket by a pressure gauge sealing ring. The pressure gauge is threaded into the pressure gauge interface and a sealing tape is wrapped around the threads of the pressure gauge.

[0009] Preferably, the bottom plate is provided with a handle at the top and four evenly distributed foot pads are installed at the bottom of the bottom plate by screws.

[0010] Preferably, the base plate is made of aluminum alloy.

[0011] Preferably, the oil tank assembly, inlet assembly, outlet assembly, and oil pump mounting assembly are all mounted on the base plate with screws.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model is simple to process, and some parts can be purchased directly from existing products, which greatly reduces the cost compared to existing products. Moreover, multiple units can be manufactured at one time to meet the different testing needs of multiple samples.

[0014] 2. This utility model adopts a quick-assembly structure, which makes assembly quick and convenient for subsequent inspection and maintenance. At the same time, it is small in size, lightweight and flexible.

[0015] 3. This utility model simulates the actual conditions on a vehicle by assembling an oil filter element in the fuel tank to filter impurities in the oil and protect the oil pump test sample.

[0016] 4. The oil pump bracket interface design of the inlet and outlet of the oil pump bracket in this utility model is universally applicable. For different projects, different oil pump brackets can be directly replaced to complete the universal oil pump test assembly, which greatly reduces the test cost and shortens the test cycle. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the oil flow direction during the testing of this utility model (as indicated by the arrow in the diagram);

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is an exploded schematic diagram of the fuel tank assembly in this utility model;

[0020] Figure 4 This is an exploded view of the imported component in this utility model;

[0021] Figure 5 This is an exploded view of the export component in this utility model;

[0022] Figure 6 This is a schematic diagram of the oil pump mounting assembly in this utility model;

[0023] Figure 7 This is a schematic diagram of the bottom plate structure of this utility model;

[0024] Figure 8 This is a schematic diagram of the testing process for this utility model. Detailed Implementation

[0025] The following will combine Figure 1-7 This utility model is described in detail below. The illustrative embodiments and descriptions of this utility model are used to explain this utility model, but are not intended to limit this utility model. The oil pump in this solution is a test piece.

[0026] An electronic oil pump testing device includes a base plate 5 and an oil tank assembly 1, an inlet assembly 2, an outlet assembly 3, and an oil pump mounting assembly 4, all mounted on the base plate. The oil tank assembly stores test oil and filtered oil. The inlet assembly controls the flow of oil into the oil pump for testing via an inlet switch valve. The outlet assembly controls the flow of oil from the oil pump into the oil tank assembly via a precision control valve, and provides different pressure loads to the oil pump by adjusting the valve opening. The oil pump mounting assembly is used for oil pump installation and oil pump output pressure monitoring. The oil tank assembly, inlet assembly, outlet assembly, and oil pump mounting assembly are all mounted to the base plate with screws to form a complete oil pump testing device. The base plate is made of aluminum alloy and has screw holes of different specifications designed according to the assembly requirements of relevant components. A handle 5.2 is provided on the top of the base plate for holding the oil pump testing device during handling and movement, saving manpower. Four evenly distributed foot pads 5.3 are mounted on the bottom of the base plate with screws. The foot pads are made of rubber material that is resistant to temperatures from -40℃ to 150℃, which can effectively reduce vibration.

[0027] The fuel tank assembly includes a fuel tank 1.1 and a transparent fuel tank cover 1.5. The fuel tank is fixed to the base plate, and an oil filter mounting plate 1.2 and an oil filter 1.3 are installed inside the fuel tank from bottom to top. By assembling the oil filter and the oil filter mounting plate, the filtration function of the automotive oil circulation system can be simulated to filter the oil. This can filter impurities and debris in the entire test device, avoiding additional damage to the test sample—the oil pump. The fuel tank cover has a fuel tank sealing ring 1.4 that fits into the fuel tank for sealing. At the same time, the fuel tank cover has an oil inlet. The test medium—oil—is stored in the fuel tank. The transparent fuel tank cover allows the test personnel to observe the internal condition of the fuel tank.

[0028] The imported components include, sequentially arranged along the oil flow direction, an oil tank interface 2.3, an inlet switch valve 2.1, a pipeline interface 2.4, a first metal hose 2.5, and an oil pump bracket interface 2.6. The inlet switch valve controls the amount of oil entering the oil pump and is fixed to the base plate by a fixing block 2.2. The left side of the inlet switch valve is threaded to the oil tank interface 2.3, and the other side of the oil tank interface, away from the inlet switch valve, is installed to the oil tank by several screws. The right side of the inlet switch valve is threaded to the pipeline interface. The first metal hose is connected to the pipeline interface and the oil pump bracket. A sealing gasket 2.8 is provided between each part, and clamps 2.7 are provided at the connection points of the first metal hose with the pipeline interface and the oil pump bracket on both sides. The oil pump bracket interface is installed with the oil pump mounting assembly on the other side away from the first metal hose by several screws. At the same time, a first sealing ring 2.9 is installed on the other side of the oil tank interface and the other side of the oil pump bracket interface. The sealing gasket and the first sealing ring provide a sealing effect. The threaded connection parts of the inlet switch valve with the oil tank interface and the pipeline interface on both sides are wrapped with waterproof sealing tape to ensure that the connection position is sealed and does not leak.

[0029] The outlet assembly includes a precision control valve 3.1, an outlet fixing block 3.2, and a second metal hose 3.3. By rotating the disc above the precision control valve, the opening of the test valve can be adjusted to provide outlet pressure to the oil pump, allowing for testing of different load conditions of the oil pump. A sealing gasket 2.8 is installed between the precision control valve and the oil tank, and is fixed to the oil tank with screws to achieve a sealing function. The outlet fixing block is used to connect the precision control valve to the oil pump bracket interface 2.6, and is equipped with sealing gaskets 2.8 and first sealing rings 2.9 on both sides respectively, achieving a sealing function with the precision control valve and the oil pump bracket interface respectively. The two ends of the second metal hose are connected to the oil pump bracket interface respectively, with sealing gaskets 2.8 installed in between, and finally fixed by clamps 2.7 to achieve a seal of the entire pipeline. The oil pump bracket interfaces 2.6 at both ends are respectively installed on the outlet fixing block and the oil pump mounting assembly, and are also equipped with sealing rings 2.9, ultimately achieving an overall seal from the oil tank 1.1 to the oil pump mounting assembly.

[0030] The oil pump mounting assembly includes an oil pump bracket 4.1 that matches the oil pump 4.4, as well as a pressure gauge interface 4.2 and a pressure gauge 4.3. The inlet and outlet of the oil pump bracket are connected to a first metal hose and a second metal hose respectively via the oil pump bracket interface 2.6. The oil pump mounting assembly, with the oil pump bracket as its core, is designed with a dedicated oil pump bracket for the assembly requirements of each oil pump. However, the assembly design of its inlet and outlet oil pump bracket interfaces is universal. Different oil pump products can achieve commonality in oil pump testing and assembly by only involving the manufacture of a dedicated oil pump bracket, greatly reducing manufacturing costs and shortening the manufacturing cycle. The pressure gauge interface is sealed to the oil pump bracket via a pressure gauge sealing ring 4.5 to achieve a sealing function. The pressure gauge is threaded into the pressure gauge interface, and sealing tape is wrapped around the threads of the pressure gauge to achieve a seal.

[0031] During testing, the opening of the precision control valve is adjusted based on the numerical feedback from the pressure gauge, thereby allowing for manual intervention and pressure regulation of the oil circuit test assembly to ultimately meet the testing requirements of the oil pump under different operating conditions.

[0032] The oil seal ring, gasket, first seal ring, and pressure gauge seal ring in this solution are all made of rubber material that is resistant to temperatures of -40℃ to 150℃ and oil, meeting the environmental requirements of vehicles.

[0033] In a specific embodiment, the entire oil pump testing device has an external length * width * height of 656 * 514 * 307 mm. It is small, lightweight and flexible, and can be placed in high-temperature or low-temperature equipment according to the test requirements to achieve tests under different working conditions.

[0034] During implementation, such as Figure 8As shown, the tester controls the test piece—oil pump 4.4—to rotate via the control system. The engine oil in the test bench flows in the direction of the dotted arrow. Pressure gauge 4.3 displays the oil flow pressure in real time. By adjusting the opening of precision control valve 3.1, the pressure of the oil flowing out of the oil pump can be increased or decreased to meet the test requirements of different operating conditions. After the engine oil enters the internal pipeline of oil tank 1.1, it enters the oil filter element 1.3 and finally flows out of the oil tank and into the inlet switch valve body 2.1. At this point, the engine oil has been filtered, which can prevent impurities from flowing into oil pump 4.4 and ensure that the rotating parts in the oil pump are not worn. This is a simulated vehicle application. The pressure of the engine oil entering the oil pump can also be increased or decreased by adjusting the opening of inlet switch valve 2.1 to meet the test requirements of different operating conditions.

[0035] In existing project development, large-scale specialized oil pump testing equipment is typically used for product debugging and testing. However, due to the high cost of this equipment (usually in the millions), it suffers from drawbacks such as limited test sample quantity, long testing cycles, high testing costs, and low flexibility. The following table compares the cost data of commercially available electronic oil pump testing benches with that of this solution:

[0036]

[0037] As can be seen from the table above, the electronic oil pump testing device of this application is miniaturized and significantly reduces manufacturing costs, and has broad application prospects.

[0038] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An electronic oil pump testing device, characterized in that: The system includes a base plate (5) and an oil tank assembly (1), an inlet assembly (2), an outlet assembly (3), and an oil pump mounting assembly (4) all mounted on the base plate. The oil tank assembly is used to store test oil and filtered oil. The inlet assembly controls the oil to enter the oil pump for testing by opening or closing the inlet switch valve. The outlet assembly controls the oil to enter the oil tank assembly from the oil pump by opening or closing the precision control valve and provides different pressure loads to the oil pump by adjusting the valve body opening. The oil pump mounting assembly is used for oil pump installation and oil pump output pressure monitoring.

2. The electronic oil pump testing device according to claim 1, characterized in that: The oil tank assembly includes an oil tank (1.1) and a transparent oil tank cover (1.5). The oil tank is fixed to the base plate and an oil filter mounting plate (1.2) and an oil filter (1.3) are installed inside the oil tank from bottom to top. The oil tank cover is provided with an oil tank sealing ring (1.4) that is sealed and fitted into the oil tank. At the same time, the oil tank cover is provided with an oil inlet.

3. The electronic oil pump testing device according to claim 1, characterized in that: The inlet assembly includes an oil tank interface (2.3), an inlet switch valve (2.1), a pipeline interface (2.4), a first metal hose (2.5), and an oil pump bracket interface (2.6) arranged sequentially along the oil flow direction. The inlet switch valve is fixed to the base plate by a fixing block (2.2). The left side of the inlet switch valve is threaded to the oil tank interface (2.3). The other side of the oil tank interface away from the inlet switch valve is installed to the oil tank by several screws. The right side of the inlet switch valve is threaded to the pipeline interface. A sealing gasket (2.8) is provided between the first metal hose and the pipeline interface and the oil pump bracket. Clamps (2.7) are provided at the connection points of the first metal hose with the pipeline interface and the oil pump bracket on both sides. The other side of the oil pump bracket interface away from the first metal hose is installed to the oil pump mounting assembly by several screws. At the same time, a first sealing ring (2.9) is installed on the other side of the oil tank interface and the other side of the oil pump bracket interface. The threaded connection parts of the inlet switch valve with the oil tank interface and the pipeline interface on both sides are wrapped with waterproof sealing tape.

4. The electronic oil pump testing device according to claim 1, characterized in that: The outlet assembly includes a precision control valve (3.1) and a second metal hose (3.3). The precision control valve is fixedly installed on the oil tank by screws. Both sides of the second metal hose are connected to oil pump bracket interfaces (2.6), and the connection between the second metal hose and the oil pump bracket interfaces is fixed by clamps (2.7). At the same time, the oil pump bracket interfaces on both sides of the second metal hose are respectively mounted on the outlet fixing block (3.2) and the oil pump mounting assembly. The other side of the outlet fixing block away from the oil pump bracket interface is connected to the precision control valve. Sealing gaskets (2.8) are provided between the second metal hose and the oil pump bracket interface, between the outlet fixing block and the precision control valve, and between the precision control valve and the oil tank. A first sealing ring (2.9) is provided between the oil pump bracket interface and the outlet fixing block, and between the oil pump bracket interface and the oil pump mounting assembly.

5. The electronic oil pump testing device according to claim 1, characterized in that: The oil pump mounting assembly includes an oil pump bracket (4.1) that matches the oil pump (4.4), and also includes a pressure gauge interface (4.2) and a pressure gauge (4.3). The inlet and outlet of the oil pump bracket are respectively connected to a first metal hose and a second metal hose through the oil pump bracket interface (2.6). The pressure gauge interface is sealed and mounted on the oil pump bracket by a pressure gauge sealing ring (4.5). The pressure gauge is threaded into the pressure gauge interface and a sealing tape is wrapped around the threads of the pressure gauge.

6. The electronic oil pump testing device according to claim 1, characterized in that: The bottom plate is provided with a handle (5.2) at the top, and four evenly distributed foot pads (5.3) are installed at the bottom of the bottom plate by screws.

7. The electronic oil pump testing device according to claim 1, characterized in that: The base plate is made of aluminum alloy.

8. The electronic oil pump testing device according to claim 1, characterized in that: The oil tank assembly, inlet assembly, outlet assembly, and oil pump mounting assembly are all mounted to the base plate with screws.

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