Rapid wear experiment device of fuel system

Abstract

The invention discloses a rapid wear experiment device for a fuel system, which comprises a rack, a driving transmission system, an oil path system, a particulate matter supply system and a control system, and is characterized in that the driving transmission system, the particulate matter supply system and the fuel system are integrated on the rack and are respectively connected with the control system; the oil way system comprises an oil tank, a mixing cavity and an oil way assembly, the mixing cavity is connected with the oil tank and the oil way assembly, and the particulate matter supply system communicates with the mixing cavity to input particulate matter so that the particulate matter can be mixed with fuel oil to form mixed oil. The driving transmission system is connected with the oil way assembly to provide conveying force, and the mixed oil is conveyed to the tail end of the oil way assembly to be sprayed out. The particulate matters are added into fuel oil through the particulate matter supply system, so that the addition of the particulate matters with different types, particle sizes and concentrations can be met, the actual working condition is completely simulated, and the friction and wear behaviors of an oil way system of the diesel engine are researched.

Description

Technical Field

[0001] The present invention relates to the technical field of friction and wear test, and particularly to a rapid wear test device for a fuel system. Background Art

[0002] The principle of a general diesel engine friction and wear test bench is to study the friction and wear behaviors of key components of a diesel engine (such as pistons, cylinder liners, bearings, etc.) by simulating the pressure, speed, temperature, and lubrication conditions in the diesel engine working environment. The test bench applies a load through a loading system, drives the friction pair to move relative to each other to generate frictional force, and uses sensors to monitor parameters such as frictional force, temperature, and wear amount in real time, so as to evaluate the tribological performance and wear characteristics of materials.

[0003] The influence of fuel mixtures with different corrected scar diameters on the friction and wear of key components of a diesel engine is still an urgent problem to be solved at present. Existing friction and wear test benches are mainly divided into two categories: one is related to the initial processing of the test bench, such as pin-on-disc friction and wear test benches, end-face friction and wear test benches, four-ball friction and wear test benches. The other is the test bench for experiments during the operation of a diesel engine. Such as cylinder piston ring friction and wear test benches, fuel injection system friction and wear test benches. The former type of test bench cannot fully simulate the actual working conditions, and the latter is not detailed enough in the study of friction mechanisms. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a rapid wear test device for a fuel system.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a rapid wear test device for a fuel system, including a frame, a drive transmission system, an oil circuit system, a particulate matter supply system, and a control system. The drive transmission system, the particulate matter supply system, and the fuel system are integrated on the frame and are respectively connected to the control system;

[0006] The oil circuit system includes an oil tank, a mixing chamber, and an oil circuit component. The mixing chamber is respectively connected to the oil tank and the oil circuit component. The particulate matter supply system is communicated with the mixing chamber to input particulate matter to mix with fuel to form a mixed oil;

[0007] The drive transmission system is connected to the oil circuit component to provide a conveying force to convey the mixed oil to the end of the oil circuit component and spray it out.

[0008] In some embodiments, the particulate matter supply system includes a particulate matter storage tank, a metering pump, and a spraying device. The particulate matter storage tank, the metering pump, the spraying device, and the mixing chamber are sequentially connected. The metering pump and the spraying device are respectively connected to the control system to automatically inject the particulate matter into the fuel in the mixing chamber.

[0009] In some embodiments, the mixing chamber includes a cavity, a static mixer, a fuel injection interface, a particulate matter injection interface, and a mixed oil output interface. The fuel injection interface, the particulate matter injection interface, and the mixed oil output interface are respectively communicated with the cavity, and the static mixer is arranged inside the cavity; the fuel injection interface and the particulate matter injection interface are respectively located at the front end of the static mixer, and the mixed oil output interface is located at the rear end of the static mixer and communicated with the oil circuit assembly.

[0010] In some embodiments, the oil circuit assembly includes a fuel injection pump and an injector. The fuel injection pump is respectively connected to the mixing chamber and the injector and is driven by the drive transmission system.

[0011] In some embodiments, a flow sensor, a concentration sensor, and a temperature sensor are further included. The flow sensor is arranged between the fuel tank and the mixing chamber, and the concentration sensor and the temperature sensor are sequentially arranged between the mixing chamber and the fuel injection pump;

[0012] The flow sensor, the concentration sensor, and the temperature sensor are respectively connected to the control system.

[0013] In some embodiments, the drive transmission system includes a motor system, a flywheel, a coupling, and a camshaft. The output end of the motor system is connected to the flywheel; the camshaft is respectively connected to the fuel injection pump and connected to the flywheel through the coupling to transmit the mechanical energy generated by the motor system to the fuel injection pump.

[0014] In some embodiments, the motor system includes a frequency converter and a motor. The frequency converter is connected to the motor to adjust the rotation speed of the motor, and the output end of the motor is connected to the flywheel to drive the flywheel.

[0015] In some embodiments, a temperature control system is further included. The temperature control system is connected between the mixing chamber and the fuel injection pump and connected to the control system to control the oil temperature.

[0016] In some embodiments, the temperature control system includes a heater, a cooler, and a temperature sensor. The heater, the cooler, and the temperature sensor are sequentially connected between the mixing chamber and the fuel injection pump.

[0017] In some embodiments, an industrial control computer and a display are further included. The industrial control computer is connected to the control system to perform data processing and storage tasks; the display is connected to the industrial control computer to display real-time data.

[0018] By implementing the present invention, the following beneficial effects are achieved:

[0019] The rapid wear experiment device of the fuel system of the present invention includes a frame, a drive transmission system, an oil circuit system, a particulate matter supply system, and a control system. The drive transmission system, the particulate matter supply system, and the fuel system are integrated on the frame and are respectively connected to the control system. The oil circuit system includes a fuel tank, a mixing chamber, and an oil circuit component. The mixing chamber is respectively connected to the fuel tank and the oil circuit component. The particulate matter supply system is communicated with the mixing chamber to input particulate matter to mix with the fuel to form a mixed oil. The drive transmission system is connected to the oil circuit component to provide a conveying force to convey the mixed oil to the end of the oil circuit component for spraying. By adding particulate matter to the fuel through the particulate matter supply system, it is possible to meet the addition of particulate matter of different types, particle sizes, and concentrations, and fully simulate the actual working conditions to study the friction and wear behavior of the diesel engine oil circuit system. Description of the Drawings

[0020] The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0021] Figure 1 is a three-dimensional structural schematic diagram of the rapid wear experiment device of the fuel system of an embodiment of the present invention;

[0022] Figure 2 is Figure 1 a front view of the rapid wear experiment device of the fuel system in

[0023] Figure 3 is Figure 1 a left view of the rapid wear experiment device of the fuel system in Detailed Embodiments

[0024] In order to have a clearer understanding of the technical features, objectives, and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the drawings.

[0025] In the description of the invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the invention. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0026] In the description of the invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a chemical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the invention can be understood through specific circumstances.

[0027] See Figures 1 to 3 , an embodiment of the present invention discloses a rapid wear test device for a fuel system, including a frame 1, a drive transmission system 2, an oil circuit system 3, a particulate matter supply system, and a control system. The drive transmission system 2, the particulate matter supply system, and the fuel system are integrated on the frame 1 and are respectively connected to the control system. The oil circuit system 3 includes an oil tank 31, a mixing chamber, and an oil circuit component. The mixing chamber is respectively connected to the oil tank 31 and the oil circuit component. The particulate matter supply system is communicated with the mixing chamber to input particulate matter to mix with the fuel to form a mixed oil. The drive transmission system 2 is connected to the oil circuit component to provide a conveying force to convey the mixed oil to the end of the oil circuit component and spray it out.

[0028] The rapid wear test device for the fuel system of the present invention adds particulate matter to the fuel in the mixing chamber through the particulate matter supply system. The presence of particulate matter will significantly affect the tribological properties and increase the complexity of abrasive wear and adhesive wear. The rapid wear test device for mixing particulate matter with fuel can study how different types of particulate matter exacerbate wear, reveal more wear mechanisms, and provide more accurate wear data. It can simulate the impact of fuel containing particulate matter on engine components under actual working conditions, and is closer to the wear conditions under actual working conditions. The particulate matter supply system can meet the addition of particulate matter of different types, particle sizes, and concentrations, fully simulate the actual working conditions, and study the friction and wear behavior of the diesel engine fuel system. It can evaluate the impact of fuel cleanliness on the life of engine components, help optimize the design of the fuel filtration system and lubrication system, and improve the reliability and durability of diesel engines.

[0029] Among them, the frame 1 is formed by laser cutting and welding 20-mm-thick cold-rolled steel plates. The welded joints are detected by ultrasonic flaw detection to ensure no false welding or weld detachment, and the surface is treated by pickling and phosphating. A three-groove workbench surface made of cast iron (processed by rough milling - finish milling - precision grinding) is provided at the top for fixing the fuel injection pump 32 of the fuel circuit assembly. The three-groove workbench surface is large in size and heavy in weight, and fully absorbs the vibration brought to the test bench when the fuel injection pump 32 injects fuel.

[0030] The fuel tank 31 has a volume of 80 L and is formed by laser-sealed welding of 2-mm-thick steel plates. The fuel tank 31 is provided with an oil drain port, which facilitates the fuel tank 31 to be pulled out from the side for cleaning. The cover of the fuel tank 31 consists of two parts. The inner part is connected to the return oil port, and the outer part can be taken out for easy refueling, which is convenient for maintenance. The fuel of this system is regulated by a pressure valve, and a metering pump and a pressure relief valve are used to adjust the fuel supply pressure to provide a stable fuel delivery volume under a constant pressure for the test bench.

[0031] A liquid level display device and an electric heater are installed on the fuel tank 31. The temperature of the fuel tank 31 is measured by a PT100 temperature sensor, and the temperature is displayed from 0°C to 100°C with a display resolution of 0.1°C. The maximum fuel supply capacity of the fuel supply pump 311: 10 L / min, and the driving motor is 1.1 KW. The motor of the fuel supply pump 311 is a vertical and horizontal dual-purpose motor with a power of 1.1 KW, and the vane pump adopts the YB1 series. The fuel supply pressure: 01 MPa, which is simultaneously displayed by a pressure gauge and a display, with an accuracy of 0.02 MPa; the diesel pressure is displayed in real time by a pressure gauge and a sensor through a display.

[0032] In some embodiments, the particulate matter supply system includes a particulate matter storage tank, a metering pump, and an injection device, which are connected in sequence to the particulate matter storage tank, the metering pump, the injection device, and the mixing chamber, and the metering pump and the injection device are respectively connected to the control system to automatically inject the particulate matter into the fuel in the mixing chamber. The particulate matter storage tank is used to store particulate matter, the metering pump is used to measure the amount of particulate matter, and the injection device injects particulate matter into the fuel as needed. Among them, the particulate matter supply system is hidden inside the frame 1 and is not shown in the figure.

[0033] In some embodiments, the mixing chamber includes a cavity, a static mixer, a fuel injection interface, a particle injection interface and a mixed oil output interface, the fuel injection interface, the particle injection interface and the mixed oil output interface are respectively connected to the cavity, and the static mixer is arranged inside the cavity. The fuel injection interface and the particle injection interface are respectively located at the front end of the static mixer, and the mixed oil output interface is located at the rear end of the static mixer and is connected to the oil circuit component. The static mixer uses the flow of fuel to promote mixing. By arranging a spiral or blade-shaped structure in the pipeline, the fuel is forced to be diverted and re-converged when it flows through, thereby increasing the mixing uniformity of the particles and the fuel. The static mixer ensures that the fuel and the particles are fully mixed. Among them, the mixing chamber is hidden inside the frame 1, which is not shown in the figure.

[0034] In some embodiments, the oil circuit assembly includes a fuel injection pump 32 and a fuel injector 33, and the fuel injection pump 32 is connected to the mixing chamber and the fuel injector 33 respectively and driven by the drive transmission system 2. The number of fuel injection pumps 32 and fuel injectors 33 can be set according to actual needs, for example, the number of fuel injection pumps 32 is 1, 2, 3, etc., and the number of fuel injectors 33 is the same as the number of fuel injection pumps 32.

[0035] The fuel injection pump 32 is driven by the drive transmission system 2, and completes the suction and extrusion of oil through the up and down movement of the plunger. The fuel injection pump 32 is connected to the high-pressure oil pipe, and after the fuel and particulate matter are mixed in the static mixer to form a mixed oil, the mixed oil is delivered to the fuel injector 33, and the oil pressure is adjusted by the pressure regulating valve 321. The accuracy of the fuel injection pump 32 directly affects the stability and accuracy of the fuel injection process.

[0036] The fuel injector 33 injects the mixed oil into the test object through the high-pressure mixed oil provided by the fuel injection pump 32. The fuel injector 33 is connected to the fuel injection pump 32 through a mechanical connection, and generates a jet flow under the action of the high-pressure mixed oil. The design and adjustment of the fuel injector 33 are crucial to simulating the fuel injection process under different working conditions.

[0037] In some embodiments, it further includes a flow sensor, a concentration sensor, and a temperature sensor. The flow sensor is disposed between the fuel tank 31 and the mixing chamber, and the concentration sensor and the temperature sensor are sequentially disposed between the mixing chamber and the fuel injection pump 32. The flow sensor, the concentration sensor, and the temperature sensor are respectively connected to the control system. Among them, the flow sensor, the concentration sensor, and the temperature sensor are hidden inside the frame 1 and not shown in the figure.

[0038] The flow sensor monitors the fuel flow in real time and provides data feedback. At the same time, the concentration sensor detects the particulate matter concentration in the mixing chamber to ensure that the mixing effect meets the set standards. The temperature sensor feeds back the temperature data to the control system in real time. The control system automatically adjusts the heating or cooling system according to the data of the temperature sensor. According to the data of the flow sensor and the concentration sensor, the control system automatically adjusts the particulate matter injection amount to achieve closed-loop control of the concentration. Finally, the mixed fuel is sent to the subsequent system for processing through the fuel transfer pump.

[0039] In some embodiments, it further includes a temperature control system. The temperature control system is connected between the mixing chamber and the fuel injection pump 32 and is connected to the control system to regulate the oil temperature. The temperature control system includes a heater, a cooler, and a temperature sensor. The heater, the cooler, and the temperature sensor are sequentially connected between the mixing chamber and the fuel injection pump 32. Among them, the temperature sensor here has the same structure as the temperature sensor mentioned in the previous paragraph. The temperature control system is hidden inside the frame 1 and not shown in the figure.

[0040] The temperature control system can automatically adjust the oil temperature. An external independent oil cooler is used to cool the oil temperature, with good cooling effect and high oil temperature control accuracy, greatly improving the measurement accuracy of the fuel injection amount of the fuel injection pump 32. The heater heats with high heating and cooling effects. Through the heater and the oil cooler, the system can control the oil temperature within a set range (40±2°C) and can be adjusted. The stability of the oil temperature helps to keep the fuel injection pump 32 working properly and prevent the influence of too high or too low temperature on the fuel injection accuracy.

[0041] In some embodiments, the drive transmission system 2 includes a motor system 21, a flywheel 22, a coupling 23, and a camshaft 24. The output end of the motor system 21 is connected to the flywheel 22. The camshaft 24 is respectively connected to the fuel injection pump 32 and connected to the flywheel 22 through the coupling 23, and transmits the mechanical energy generated by the motor system 21 to the fuel injection pump 32.

[0042] The motor system 21 includes a frequency converter and a motor. The frequency converter is connected to the motor to adjust the rotational speed of the motor. The output end of the motor is connected to the flywheel 22 to drive the flywheel 22. The motor is a four-pole 30KW three-phase asynchronous motor, and the frequency converter adopts a stepless speed regulation frequency converter with a 30KW heavy-duty pump type special vector control method. The motor is driven by the frequency converter, and the motor drives the flywheel 22. The flywheel 22 is directly connected to the camshaft 24 through a large coupling 23, so that the power output efficiency of the motor is high. This design fully avoids the energy loss caused by belt drive in the traditional mode, and greatly improves the reliability, performance and energy-saving effect of the test bench. The flywheel 22 at the front end of the motor constitutes an energy storage device, which alleviates the speed fluctuation caused by the periodic pulsating load of the camshaft 24, and has the characteristics of large low-speed output torque, fast speed increase and decrease, constant speed and protection function, etc.; it outputs various rotational speeds specified in the test, and the rotary inertia torque is not less than 70 N·m. Ensure that the test bench meets the dynamic requirements specified in the standard TB / T2416-2010.

[0043] The camshaft 24 is connected to the flywheel 22 through the coupling 23, and is responsible for transmitting the mechanical energy generated by the motor to the fuel injection pump 32. The camshaft 24 is composed of multiple precision-machined cams, which can drive the plunger of the fuel injection pump 32 to complete the suction and discharge of the oil. The design of the camshaft 24 is crucial for ensuring the stability of the fuel injection volume and the accuracy of the test data.

[0044] To facilitate the installation of the camshaft 24 and the fuel injection pump 32, the camshaft 24 is arranged in the cam box 25. The cam box 25 is mainly composed of a cam box body, bearings, roller bodies and ejector pins. The cam profile of the camshaft 24 is processed by turning, milling and precision grinding. The camshaft 24 is a part of the cam box body. The cam box body is made of steel plate welding, and after being detected by an ultrasonic flaw detector, it is machined by a machine tool to form, which has extremely high strength, good vibration damping and low noise.

[0045] The flywheel 22 is connected to the output end of the motor and is connected to the camshaft 24 through a large coupling 23. The flywheel 22 not only stores energy, but also can alleviate the speed fluctuation caused by the periodic load, ensuring the stability of power transmission. Through the flywheel 22, the power of the motor is transmitted to the subsequent mechanical components with high efficiency.

[0046] In some embodiments, the control system includes an industrial control computer, a PLC control system, an oil measurement system and a display. The industrial control computer is connected to the PLC control system to perform data processing and storage tasks. The display is connected to the industrial control computer to display real-time data. The oil measurement system is used to receive the sprayed mixed oil. Among them, most of the control system is arranged in the control box 4, which is not shown in detail.

[0047] The control system is controlled by an industrial computer + PLC. The speed, temperature, pressure, count, etc. of the fuel injection pump 32 are displayed in real time through a display. The flow rate can be displayed on a computer display through a flow sensor and also through an oil measurement system (specifically, a measuring cup), and can be calibrated at any time to ensure the accuracy of the flow rate measurement. It has good stability and strong anti-interference ability. The measuring cup used for fuel injection volume measurement has a measuring cylinder volume of 500 ML, a full-scale error of less than 0.5%, and a minimum division volume of the measuring cylinder of 2 ML. For temperature, speed, count, and industrial computer control, the temperature control measurement range is 0 - 99 °C and can be set arbitrarily. The speed control measurement range is 0 - 1800 rpm and can be set arbitrarily. The count control measurement range is 0 - 99 times and can be set arbitrarily.

[0048] As Figure 3 shown, in some embodiments, the rapid wear test device for the fuel system further includes a distribution board, which serves as the power distribution center of the system. The distribution board obtains power from an external power source and distributes it to each component of the system. The distribution board includes an air switch, a transformer, a thermal protector, an AC contactor, an intermediate relay, and terminal blocks, etc. The air switch is a short-circuit protection device for various circuit electrical components. The transformer transforms the 380 V voltage into a 36 V working lamp lighting safety voltage. The thermal protector is used to protect the oil pump motors (including the motor of the fuel injection pump 32 in the motor system 21 and the motor of the fuel supply pump 311 in the oil circuit system 3) from damage caused by overheating. The AC contactor is used to control the oil pump motors (including the motor of the fuel injection pump 32 in the motor system 21 and the motor of the fuel supply pump 311 in the oil circuit system 3), converting a small current into a large current. The intermediate relay is used to control the heating and cooling of the oil temperature. Among them, the distribution board is arranged in the control box 4 and is not shown in the figure.

[0049] By implementing the present invention, the following beneficial effects are achieved:

[0050] The rapid wear test device for the fuel system of the present invention can add particulate matter to the fuel through the particulate matter supply system, which can meet the addition of particulate matter of different types, particle sizes, and concentrations, fully simulate the actual working conditions, and study the friction and wear behaviors of the diesel engine oil circuit system 3 (especially the fuel injection pump 32 and the injector 33).

[0051] It can be understood that the above embodiments only represent the preferred embodiments of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above embodiments or technical features can be freely combined, and several modifications and improvements can also be made. These all belong to the protection scope of the present invention, that is, the embodiments described in "in some embodiments" can be freely combined with any of the above and below embodiments. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. A rapid wear test device for a fuel system, characterized in that: It comprises a frame (1), a drive transmission system (2), an oil system (3), a particle supply system and a control system, wherein the drive transmission system (2), the particle supply system and the oil system are integrated on the frame (1) and are respectively connected to the control system; The oil circuit system (3) comprises an oil tank (31), a mixing chamber and an oil circuit assembly, wherein the mixing chamber is connected to the oil tank (31) and the oil circuit assembly respectively, and the particle supply system is connected to the mixing chamber to input particles to mix with the fuel to form mixed oil; The driving transmission system (2) is connected to the oil circuit component to provide a conveying force, and conveys the mixed oil to the end of the oil circuit component for spraying.

2. The rapid wear test device for fuel system according to claim 1, characterized in that: The particulate matter supply system includes a particulate matter storage tank, a metering pump and an injection device, wherein the particulate matter storage tank, the metering pump, the injection device and the mixing chamber are connected in sequence, and the metering pump and the injection device are respectively connected to the control system to automatically inject the particulate matter into the fuel in the mixing chamber.

3. The rapid wear test device for fuel system according to claim 1, characterized in that: The mixing chamber includes a chamber body, a static mixer, a fuel injection interface, a particle injection interface and a mixed oil output interface; the fuel injection interface, the particle injection interface and the mixed oil output interface are respectively connected to the chamber body, and the static mixer is arranged inside the chamber; the fuel injection interface and the particle injection interface are respectively located at the front end of the static mixer, and the mixed oil output interface is located at the rear end of the static mixer and is connected to the oil circuit assembly.

4. The rapid wear test device for fuel system according to claim 1, characterized in that: The oil circuit assembly comprises an injection pump (32) and an injector (33); the injection pump (32) is connected to the mixing chamber and the injector (33) respectively and is driven by the drive transmission system (2).

5. The rapid wear test device for fuel system according to claim 4, characterized in that: It also includes a flow sensor, a concentration sensor and a temperature sensor, wherein the flow sensor is arranged between the oil tank (31) and the mixing chamber, and the concentration sensor and the temperature sensor are arranged in sequence between the mixing chamber and the fuel injection pump (32); The flow sensor, the concentration sensor and the temperature sensor are respectively connected to the control system.

6. The rapid wear test device for fuel system according to claim 4, characterized in that: The drive transmission system (2) comprises a motor system (21), an inertia wheel (22), a coupling (23) and a camshaft (24); the output end of the motor system (21) is connected to the inertia wheel (22); the camshaft (24) is respectively connected to the fuel injection pump (32) and is connected to the inertia wheel (22) through the coupling (23), so as to transmit the mechanical energy generated by the motor system (21) to the fuel injection pump (32).

7. The rapid wear test device for fuel system according to claim 6, characterized in that: The motor system (21) comprises a frequency converter and a motor, wherein the frequency converter is connected to the motor to adjust the rotation speed of the motor, and the output end of the motor is connected to the inertia wheel (22) to drive the inertia wheel (22).

8. The rapid wear test device for fuel system according to claim 4, characterized in that: It also includes a temperature control system, which is connected between the mixing chamber and the fuel injection pump (32) and is connected to the control system to regulate the oil temperature.

9. The rapid wear test device for fuel system according to claim 8, characterized in that: The temperature control system comprises a heater, a cooler and a temperature sensor, wherein the heater, the cooler and the temperature sensor are sequentially connected between the mixing chamber and the fuel injection pump (32).

10. The rapid wear test device for fuel system according to claim 1, characterized in that: The control system includes an industrial computer, a PLC control system and a display. The industrial computer is connected to the PLC control system to perform data processing and storage tasks; the display is connected to the industrial computer to display real-time data.

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