A testing device suitable for multiple types of fuel injectors

Abstract

The utility model belongs to the field of oil atomizer testing technology, concretely relates to a testing device suitable for multiple models of oil atomizer, including frame, be equipped with high pressure oil inlet module and low pressure oil return nozzle module on the frame, the high pressure oil inlet module includes oil inlet test subassembly and is equipped with the oil inlet test subassembly on the oil inlet change type subassembly, the low pressure oil return nozzle module includes the oil return nozzle test subassembly and is equipped with the oil return nozzle test subassembly on the oil return nozzle change type subassembly, the utility model has simple structure, easy operation and so on advantage, easy to popularize and application.

Description

Technical Field

[0001] This utility model relates to a testing device that is compatible with multiple types of fuel injectors, and belongs to the field of fuel injector testing technology. Background Technology

[0002] During the production process, fuel injectors require various performance tests to ensure their reliability. However, with continuous technological advancements, injector models and structures are constantly being updated and iterated, such as differences in high-pressure inlet offset or low-pressure return nozzle angle. Traditional testing equipment is typically designed for a single model, with a fixed structure that cannot adapt to variations in size across different models, resulting in poor versatility. When testing new injector models, it is often necessary to redesign or manufacture dedicated equipment, leading to low testing efficiency and high costs. Therefore, there is an urgent need for testing equipment that can adapt to multiple injector models to improve testing efficiency and equipment utilization. Utility Model Content

[0003] This invention addresses the aforementioned problems in the prior art by providing a testing device that is compatible with multiple types of fuel injectors.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A test device adapted to multiple models of fuel injectors includes a base, on which a high-pressure fuel inlet module and a low-pressure fuel return nozzle module are provided. The high-pressure fuel inlet module includes a fuel inlet test component and a fuel inlet type changing component provided on the fuel inlet test component. The low-pressure fuel return nozzle module includes a fuel return nozzle test component and a fuel return nozzle type changing component provided on the fuel return nozzle test component.

[0005] The beneficial effects of this invention are as follows: By setting up an inlet changing component and a return nozzle changing component, and adjusting the positions of the inlet testing component and the return nozzle testing component, it can adapt to the size and position changes of the high-pressure inlet and low-pressure return nozzle of different injector models. This eliminates the need to redesign or manufacture dedicated equipment for each model, thus greatly improving testing efficiency and equipment utilization. This invention has the advantages of simple structure and convenient operation, making it easy to promote and apply.

[0006] Based on the above technical solution, the present invention can be further improved as follows: Furthermore, the oil inlet test assembly includes an oil inlet test mounting base and an oil inlet test cylinder. The oil inlet test mounting base is movably mounted on the base, and the oil inlet test cylinder is mounted on the oil inlet test mounting base. The oil inlet test cylinder is provided with a second test nozzle, which is used to connect to the high-pressure oil inlet of the injector.

[0007] The beneficial effects of adopting the above-mentioned further technical solutions are: the mobility of the inlet test mounting base provides greater flexibility for testing, and the inlet changing component can limit the movement of the inlet test mounting base, thereby adjusting the position of the inlet test cylinder, so that the second test nozzle can accurately connect to the high-pressure inlet of different types of injectors, ensuring the smooth progress of the test process and adapting to different test requirements.

[0008] Furthermore, the oil inlet replacement assembly includes a limiting block, an adjusting block, and a connecting plate. The connecting plate is fixedly installed on the oil inlet test mounting base, the limiting block is connected to the connecting plate, and the adjusting block is provided with a positioning protrusion.

[0009] The beneficial effects of adopting the above-mentioned further technical solution are as follows: The positioning protrusion design on the adjusting block forms a first positioning surface and a second positioning surface on the adjusting block. When it is necessary to connect the high-pressure inlet of the injector, the inlet test mounting base moves under the drive of the power mechanism, driving the limiting block to move. When the limiting block moves to contact the adjusting block, the contact between the limiting block and different positioning surfaces achieves the adaptation of the high-pressure inlet position of different injector models. The adjusting block blocks the movement of the limiting block, thereby positioning the inlet test component. It can accurately position the high-pressure inlet of different injector models to adapt to the high-pressure inlet position of different injector models, ensuring the accuracy and reliability of the test. The above-mentioned further technical solution, through the inlet replacement component, can achieve rapid adaptation of the high-pressure inlet position of different injector models without replacing the entire test component, greatly improving the flexibility and efficiency of the test.

[0010] Furthermore, the limiting block is movable along a first direction, and the adjusting block is movable along a second direction and mounted on the base. The first direction is perpendicular to the second direction, and the positioning protrusion is provided on the side of the adjusting block facing the limiting block.

[0011] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the limiting block and the adjusting block can move in two mutually perpendicular directions, which provides a larger adjustment range. As the adjusting block moves to different positions, its different positioning faces align with the limiting block. When the limiting block moves towards the adjusting block, its different positioning faces position themselves on the limiting block, allowing the inlet test assembly to more accurately adapt to the high-pressure inlet positions of different injector models. By adjusting the positions of the limiting block and the adjusting block, the above-mentioned further technical solution flexibly adjusts the docking position and angle between the test nozzle two and the high-pressure inlet of the injector, thereby ensuring that the test nozzle two can accurately and stably connect to the high-pressure inlet of various injector models, further improving the accuracy and adaptability of the test.

[0012] Furthermore, the return nozzle testing assembly includes a return nozzle testing mounting base and a return nozzle testing cylinder. The return nozzle replacement assembly is mounted on the return nozzle testing mounting base, and the return nozzle testing cylinder is mounted on the return nozzle replacement assembly. The return nozzle testing cylinder is provided with a test nozzle.

[0013] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the return nozzle test mounting base provides stable installation and support, and the return nozzle test cylinder is used to drive the test nozzle one to perform its action. Through the return nozzle changing component, the angle and height of the test nozzle one can be easily adjusted to adapt to the changes in the low-pressure return nozzle position of different injector models. This not only improves the accuracy of the test but also enhances the versatility of the test device, enabling the same test device to be applicable to the testing of multiple injector models.

[0014] Furthermore, the return nozzle changing assembly includes a mounting plate and a changing plate. The mounting plate is fixedly mounted on the return nozzle test mounting base, and the changing plate is detachably mounted on the mounting plate. The return nozzle test cylinder is mounted on the changing plate, and the changing plate is used to adjust the angle and height of the test nozzle.

[0015] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: The design of the change plate allows testers to quickly adjust its height and angle according to the low-pressure return nozzle position requirements of different injector models, thereby adjusting the height and angle of the test nozzle one, without the need for complex adjustments to the entire return nozzle test assembly. This simplifies test preparation, shortens the test cycle, and improves test efficiency. Simultaneously, the detachable connection between the change plate and the mounting plate facilitates quick adjustment and maintenance by testers, improving the maintainability and flexibility of the test device.

[0016] Furthermore, the mounting plate is provided with multiple mounting holes, the shape-changing plate is provided with multiple shape-changing holes, and the shape-changing plate is connected to the mounting plate by bolts.

[0017] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: Multiple mounting holes and changing holes are respectively provided on the mounting plate and the changing plate, offering greater flexibility and more options for angles and heights. By selecting and combining mounting holes and changing holes at different positions, testers can quickly adjust the position of the changing plate on the mounting plate, thereby changing the height and angle of the changing plate, simplifying the adjustment process of the testing device, and improving the accuracy and efficiency of the test. Simultaneously, the bolted connection ensures a stable connection between the changing plate and the mounting plate, guaranteeing stability and reliability during the testing process.

[0018] Furthermore, the base is provided with a positioning reference surface and a positioning block for positioning the installation position of the injector during testing.

[0019] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: The design of the positioning reference surface and positioning block provides a reference and limit for the accurate installation of the injector during the testing process, ensuring the stability and accuracy of the injector installation during testing. The positioning reference surface provides a planar reference for the injector during installation, while the positioning block is used to limit the movement of the injector during installation, thereby preventing the injector from shifting or tilting in the installation position, which would affect the accuracy of the test. The above-mentioned further technical solutions improve the accuracy of the test and also help protect the injector from damage during the test. In addition, the design of the positioning reference surface and positioning block simplifies the operation process of the testing device, enabling testers to quickly and accurately install the injector onto the testing device, thus improving testing efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the low-pressure return oil nozzle module; Figure 3 This is a three-dimensional structural diagram of the low-pressure return oil nozzle module from another angle. Figure 4 This is a schematic diagram of the three-dimensional structure of the adjustment block; Figure 5 This is a schematic diagram of the three-dimensional structure of the adjustment block from another angle.

[0021] The attached diagram is labeled as follows: 100, base; 200, high-pressure oil inlet module; 201, oil inlet test mounting base; 202, oil inlet test cylinder; 203, test nozzle two; 204, limit block; 205, adjusting block; 2051, positioning protrusion; 2052, first positioning surface; 2053, second positioning surface; 206, connecting plate; 300, low-pressure return oil nozzle module; 301, return oil nozzle test mounting base; 302, return oil nozzle test cylinder; 303, test nozzle one; 304, mounting plate; 305, changing plate. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] See Figures 1-5 A testing device adapted to multiple types of fuel injectors includes a base 100, on which a high-pressure fuel inlet module 200 and a low-pressure fuel return nozzle module 300 are provided. The high-pressure fuel inlet module 200 includes a fuel inlet testing component and a fuel inlet type changing component disposed on the fuel inlet testing component. The low-pressure fuel return nozzle module 300 includes a fuel return nozzle testing component and a fuel return nozzle type changing component disposed on the fuel return nozzle testing component.

[0024] The oil inlet test assembly includes an oil inlet test mounting base 201 and an oil inlet test cylinder 202. The oil inlet test mounting base 201 is movably mounted on the base 100, and the oil inlet test cylinder 202 is mounted on the oil inlet test mounting base 201. The oil inlet test cylinder 202 is provided with a second test nozzle 203, which is used to connect to the high-pressure oil inlet of the injector.

[0025] The inlet port changing assembly includes a limiting block 204, an adjusting block 205, and a connecting plate 206. The connecting plate 206 is fixedly installed on the inlet port test mounting base 201. The limiting block 204 is connected to the connecting plate 206. The adjusting block 205 is provided with a positioning protrusion 2051, thereby forming a first positioning surface 2052 and a second positioning surface 2053 on the adjusting block 205. When it is necessary to connect the high-pressure inlet port of the injector, the inlet port test mounting base 201 moves under the drive of the power mechanism, driving the limiting block 204 to move. When the limiting block 204 moves to contact the adjusting block 205, the contact between the limiting block 204 and different positioning surfaces realizes the adaptation of the high-pressure inlet position of different injector models. The adjusting block 205 blocks the movement of the limiting block 204, thereby positioning the inlet port test assembly to adapt to the high-pressure inlet position of different injector models.

[0026] Since the limiting block 204 is connected to the connecting plate 206, when the connecting plate 206 moves under the drive of the oil inlet test mounting base 201, the limiting block 204 can move along a first direction under the drive of the connecting plate 206, and the adjusting block 205 can be movably mounted on the base 100 along a second direction. The first direction is perpendicular to the second direction, and the positioning protrusion 2051 is provided on the side of the adjusting block 205 facing the limiting block 204. Specifically, the bottom of the adjusting block is provided with a sliding groove, and the base 100 is provided with a sliding table. The adjusting block is movably mounted on the sliding table through the sliding groove.

[0027] The return nozzle test assembly includes a return nozzle test mounting base 301 and a return nozzle test cylinder 302. The return nozzle replacement assembly is mounted on the return nozzle test mounting base 301, and the return nozzle test cylinder 302 is mounted on the return nozzle replacement assembly. A test nozzle 303 is provided on the return nozzle test cylinder 302.

[0028] The return nozzle changing assembly includes a mounting plate 304 and a changing plate 305. The mounting plate 304 is fixedly mounted on the return nozzle test mounting base 301, and the changing plate 305 is detachably mounted on the mounting plate 304. The return nozzle test cylinder 302 is mounted on the changing plate 305, and the changing plate 305 is used to adjust the angle and height of the test nozzle 303.

[0029] The mounting plate 304 has multiple mounting holes, and the shape-changing plate 305 has multiple shape-changing holes. The shape-changing plate 305 is connected to the mounting plate 304 by bolts. By selecting different combinations of mounting holes and shape-changing holes, the position of the shape-changing plate 305 can be adjusted, thereby adjusting the installation height and angle of the shape-changing plate 305 on the mounting plate 304. This, in turn, adjusts the height and angle of the return nozzle test cylinder 302 on the return nozzle test mounting base 301, so that the height and angle of the test nozzle 303 on the return nozzle test cylinder 302 can be adapted to the testing of low-pressure return nozzles of different types of injectors.

[0030] The base 100 is provided with a positioning reference surface and a positioning block (not shown in the figure) for positioning the installation position of the fuel injector during testing.

[0031] The power mechanism involved in this utility model is not specifically limited, as long as it can drive the corresponding component to perform the corresponding movement. For example, the power structure of this utility model can be a cylinder, a hydraulic cylinder, or an electric cylinder.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing device for adapting to multiple types of fuel injectors, comprising a base (100), characterized in that, The base (100) is provided with a high-pressure oil inlet module (200) and a low-pressure oil return nozzle module (300). The high-pressure oil inlet module (200) includes an oil inlet test assembly and an oil inlet replacement assembly provided on the oil inlet test assembly. The oil inlet replacement assembly includes a limiting block (204), an adjusting block (205), and a connecting plate (206). The connecting plate (206) is fixedly installed on the oil inlet test mounting base (201). The limiting block (204) is connected to the connecting plate (206). The adjusting block (205) is provided with a positioning protrusion (2051). The low-pressure oil return nozzle module (300) includes an oil return nozzle test assembly and an oil return nozzle replacement assembly provided on the oil return nozzle test assembly. The oil return nozzle test assembly includes an oil return nozzle test assembly. The mounting base (301) and the return nozzle test cylinder (302) are provided. The return nozzle changing assembly is mounted on the return nozzle test mounting base (301). The return nozzle test cylinder (302) is mounted on the return nozzle changing assembly. The return nozzle test cylinder (302) is provided with a test nozzle (303). The return nozzle changing assembly includes a mounting plate (304) and a changing plate (305). The mounting plate (304) is fixedly mounted on the return nozzle test mounting base (301). The changing plate (305) is detachably mounted on the mounting plate (304). The return nozzle test cylinder (302) is mounted on the changing plate (305). The changing plate (305) is used to adjust the angle and height of the test nozzle (303).

2. The test device for adapting a multi-model fuel injector according to claim 1, wherein, The inlet test assembly includes an inlet test mounting base (201) and an inlet test cylinder (202). The inlet test mounting base (201) is movably mounted on the base (100). The inlet test cylinder (202) is mounted on the inlet test mounting base (201). The inlet test cylinder (202) is provided with a second test nozzle (203), which is used to connect to the high-pressure inlet of the injector.

3. The test device for adapting a plurality of fuel injectors according to claim 1, wherein, The limiting block (204) is movable in a first direction, and the adjusting block (205) is movable in a second direction on the base (100). The first direction is perpendicular to the second direction, and the positioning protrusion (2051) is located on the side of the adjusting block (205) facing the limiting block (204).

4. The test device for adapting a plurality of fuel injectors according to claim 1, wherein, The mounting plate (304) is provided with a plurality of mounting holes, and the shape-changing plate (305) is provided with a plurality of shape-changing holes. The shape-changing plate (305) is connected to the mounting plate (304) by bolts.

5. The testing device for adapting to multiple types of fuel injectors according to claim 1, characterized in that, The base (100) is provided with a positioning reference surface and a positioning block, which are used to position the installation position of the injector during testing.

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