Hydraulic pump comprehensive test bench and automatic control system thereof

Abstract

The invention relates to the technical field of hydraulic technology and detection equipment, in particular to a hydraulic pump comprehensive test stand and an automatic control system thereof. The hydraulic station comprises a main oil tank and a hydraulic driving assembly, a hydraulic oil inlet is formed in the top of the main oil tank, and a hydraulic oil outlet is formed in the bottom; the durability testing mechanism comprises a first driving assembly and a tested pump, the tested pump is provided with a first oil inlet and a first oil outlet, and the first oil inlet is connected with the hydraulic oil outlet; the loading test mechanism comprises a second oil inlet connected with the first oil outlet and a second oil outlet connected with the hydraulic oil inlet; the multi-way valve testing mechanism comprises a tested valve, a distribution valve block, a plurality of oil pipes, a valve block oil outlet connected with the hydraulic oil inlet, and a valve block oil inlet connected with the hydraulic oil outlet. According to the invention, through the modular design of the test bench, each test mechanism can be flexibly adjusted to adapt to test requirements of different working conditions, so that the test efficiency and the result accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic technology and detection equipment, and in particular to a hydraulic pump comprehensive test bench and an automatic control system thereof. Background Art

[0002] The hydraulic pump is a key power component in the hydraulic system. It converts mechanical energy into hydraulic energy to provide pressure and flow for the hydraulic system. The performance of the hydraulic pump directly affects the working efficiency and reliability of the entire hydraulic system. Its main performance tests include flow, pressure, efficiency, temperature rise, noise, vibration, dynamic response, etc. These test indicators can not only reflect the working characteristics of the hydraulic pump, but also be used to evaluate its service life and fault status, providing a reference for system design and maintenance.

[0003] However, in the current hydraulic pump test equipment, there is a common problem of scattered test functions. Most test devices can only test one or a small number of performance indicators separately, and cannot achieve a comprehensive evaluation of the hydraulic pump performance. For example, the flow test equipment mainly focuses on the flow characteristics of the hydraulic pump, and the noise test equipment is used to measure the noise level alone. There is a lack of a test bench that can integrate multiple performance test functions. This requires the cooperation of multiple devices during the test process, which not only increases the test cost, but also significantly reduces the test efficiency.

[0004] Therefore, there is an urgent need for a comprehensive test bench that can integrate multiple performance testing functions of hydraulic pumps into a single device, which can realize comprehensive testing of the main performance indicators of hydraulic pumps and at the same time has the characteristics of high precision, automation and intelligence to meet the higher requirements of the development of modern hydraulic technology for testing devices and provide strong support for performance optimization, fault diagnosis and quality control of hydraulic pumps. Summary of the invention

[0005] In view of at least one of the above technical problems, the present invention provides a hydraulic pump comprehensive test bench and an automatic control system thereof, which improves the test efficiency by integrating multiple test mechanisms.

[0006] According to a first aspect of the present invention, there is provided a hydraulic pump comprehensive test bench, comprising: A frame, on which a hydraulic station, a durability test mechanism, a loading test mechanism and a multi-way valve test mechanism are arranged; The hydraulic station includes a main oil tank, a hydraulic drive assembly connected to the main oil tank, the main oil tank has a hydraulic oil inlet on the top and a hydraulic oil outlet on the bottom, and the hydraulic drive assembly includes a hydraulic pump connector connected to the hydraulic oil outlet; The durability test mechanism comprises at least one first drive assembly, a test pump connected to the first drive assembly, the test pump having a first oil inlet and a first oil outlet, the first oil inlet being connected to the hydraulic pump joint; The loading test mechanism has at least one group, and the loading test mechanism includes a second oil inlet connected to the first oil outlet, and a second oil outlet connected to the hydraulic oil inlet; The multi-way valve testing mechanism includes a test valve, a distribution valve block connected to the test valve, including multiple oil pipes connected to the test valve, a valve block oil outlet connected to the hydraulic oil inlet, and a valve block oil inlet connected to the hydraulic oil outlet.

[0007] In some embodiments of the present invention, the hydraulic station also includes a temperature measuring component arranged inside the main oil tank, a filtering component connected to the bottom of the main oil tank at one end and the top of the main oil tank at the other end, and a cooling component connected to the main oil tank, and the main oil tank also has an overflow valve.

[0008] In some embodiments of the present invention, the durability testing mechanism also includes a fixed frame and a mounting plate fixedly connected to the fixed frame, the first drive assembly is fixed to the fixed frame and arranged on one side of the mounting plate, the test pump is arranged on the other side of the mounting plate, and a coupling is also provided between the first drive assembly and the test pump.

[0009] In some embodiments of the present invention, the durability testing mechanism further includes a sliding assembly, including a slide rail fixed to the frame, and a slider fixedly connected to the fixed frame, and the slider can be relatively slidably arranged on the slide rail.

[0010] In some embodiments of the present invention, the loading test mechanism further includes a road bridge valve block, and a relief valve group and a pressure valve group connected to the road bridge valve block.

[0011] In some embodiments of the present invention, the loading test mechanism further comprises a heat dissipation component connected to the road bridge valve block, a pipeline is connected between the two, and hydraulic oil circulates between the road bridge valve block and the heat dissipation component.

[0012] In some embodiments of the present invention, the multi-way valve testing mechanism further includes a test frame for fixing the tested valve, a second driving member for driving the tested valve, and a hydraulic oil tank connected to the distribution valve block.

[0013] In some embodiments of the present invention, the hydraulic station further includes a merging component, the merging component is connected between the first oil outlet and the second oil inlet, and the merging component further includes a flow regulating component and a pressure regulating component.

[0014] In some embodiments of the present invention, there is also an oil port transition mechanism between the endurance testing mechanism and the loading testing mechanism, including a transition oil port connected between the endurance testing mechanism and the loading testing mechanism, and a pressure regulating component and a flow regulating component arranged inside.

[0015] According to a second aspect of the present invention, there is also provided an automatic control system for a hydraulic pump comprehensive test bench, comprising: A driving module, used to adjust the working states of the hydraulic driving assembly, the first driving assembly, and the second driving assembly according to the instructions of the driving module, so as to ensure that each test mechanism operates in a predetermined manner; The control module is used to receive real-time data from each test mechanism, generate control instructions according to preset test requirements, and adjust the working status of each test mechanism; A data acquisition module is used to collect the temperature, pressure, flow rate and liquid level parameters of the hydraulic oil in real time, and feed the collected data back to the control module; Display module, including a touch screen display, which displays test data, test results and alarm information in real time, and allows the operator to set test parameters and adjust control strategies through the touch screen; The automatic adjustment module is used to automatically adjust the hydraulic oil flow, pressure and temperature parameters in the corresponding components according to the instructions generated by the control module to ensure that various indicators during the test process are maintained within a preset range.

[0016] The beneficial effects of the present invention are as follows: the present invention realizes a comprehensive and efficient hydraulic pump performance test by integrating a hydraulic station, a durability test mechanism, a loading test mechanism and a multi-way valve test mechanism. The connection between the hydraulic pump connector, the oil tank and the test mechanism ensures the efficient flow and precise control of the hydraulic oil, and improves the safety and reliability of the system. The modular design of the test system enables each test mechanism to be flexibly adjusted to meet the test requirements of different working conditions, thereby ensuring the stability and durability of the hydraulic pump in a variety of environments. The multi-way valve test mechanism simulates actual working conditions through precise oil flow distribution and provides high-precision performance verification. The stability and reliability of the entire system are improved through precise oil flow, pressure and temperature control, while optimizing the test process, improving test efficiency and the accuracy of results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1A top view of a comprehensive test bench for hydraulic pumps according to an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a comprehensive test bench for a hydraulic pump in an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a hydraulic station in a hydraulic pump comprehensive test bench according to an embodiment of the present invention; Figure 4 It is a structural schematic diagram of a durability test mechanism in a comprehensive test bench for a hydraulic pump in an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a loading test mechanism in a comprehensive test bench for a hydraulic pump in an embodiment of the present invention; Figure 6 It is a structural schematic diagram of another angle of the loading test mechanism in the hydraulic pump comprehensive test bench in an embodiment of the present invention; Figure 7 It is a structural schematic diagram of a confluence assembly in a comprehensive test bench for a hydraulic pump according to an embodiment of the present invention; Figure 8 It is a structural schematic diagram of a multi-way valve testing mechanism in a comprehensive test bench for a hydraulic pump in an embodiment of the present invention; Fig. 9 It is a structural diagram of the comprehensive automatic control system of the hydraulic pump in an embodiment of the present invention.

[0019] 1. Frame; 2. Hydraulic station; 21. Main oil tank; 21a. Hydraulic oil inlet; 21b. Hydraulic oil outlet; 22. Hydraulic drive assembly; 23. Temperature measuring assembly; 24. Filter assembly; 25. Cooling assembly; 26. Overflow valve; 27. Merging assembly; 3. Durability test mechanism; 31. First drive assembly; 32. Test pump; 32a. First oil inlet; 32b. First oil outlet; 33. Fixing frame; 33a. Mounting plate; 34. Coupling; 35. Sliding assembly; 35a. Slide rail; 35b. Sliding block; 4. Loading test mechanism; 41. Second oil inlet; 42. Second oil outlet; 43. Road and bridge valve block; 44. Heat dissipation assembly; 45. Multi-way valve test mechanism; 51. Test valve; 52. Distribution valve block; 53. Test frame; 54. Second drive member; 55. Hydraulic oil tank; 6. Oil port transition mechanism. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] like Figures 1 to 8 The hydraulic pump comprehensive test bench shown includes: A frame 1, on which a hydraulic station 2, a durability test mechanism 3, a load test mechanism 4 and a multi-way valve test mechanism 45 are arranged; The hydraulic station 2 includes a main oil tank 21, and a hydraulic drive component 22 connected to the main oil tank 21. The main oil tank 21 has a hydraulic oil inlet 21a on the top and a hydraulic oil outlet 21b on the bottom. The hydraulic drive component 22 includes a hydraulic pump connector connected to the hydraulic oil outlet 21b. It should be pointed out here that the hydraulic drive component 22 can be in many forms, such as a gear pump, a plunger pump, a vane pump, or other forms.

[0024] The durability testing mechanism 3 includes at least one first driving component 31, and a test pump 32 connected to the first driving component 31. The test pump 32 has a first oil inlet 32a and a first oil outlet 32b, and the first oil inlet 32a is connected to the hydraulic pump connector; the durability testing mechanism 3 is used to perform a long-term, continuous working test on the hydraulic pump to simulate the working conditions that may be encountered in actual use, so as to test the performance changes of the hydraulic pump under long-term operation. Through long-term testing, the wear, aging and other phenomena of the hydraulic pump under high frequency and high load conditions are detected, and the service life of the pump is evaluated.

[0025] The loading test mechanism 4 has at least one group, and the loading test mechanism 4 includes a second oil inlet 41 connected to the first oil outlet 32b, and a second oil outlet 42 connected to the hydraulic oil inlet 21a; the loading test mechanism 4 is mainly used to simulate the load conditions of the hydraulic pump in an actual working environment, such as the impact of load changes on the flow, pressure and power of the pump. By changing the load, the response ability and output capacity of the hydraulic pump under different working conditions are checked, and the stability and adjustment ability of the pump are evaluated.

[0026] The multi-way valve test mechanism 45 includes a test valve 51, a distribution valve block 52 connected to the test valve 51, multiple oil pipes connected to the test valve 51, a valve block oil outlet connected to the hydraulic oil inlet 21a, and a valve block oil inlet connected to the hydraulic oil outlet 21b. The multi-way valve test mechanism 45 is used to test the matching and working coordination between the hydraulic pump and different types of multi-way valves. It can check the performance of the hydraulic system when controlling multiple channels or loads. The multi-way valve test can check whether the hydraulic pump can support multiple loads or actuators at the same time to ensure that the flow and pressure of different output channels meet the requirements.

[0027] The present invention realizes a comprehensive and efficient hydraulic pump performance test by integrating a hydraulic station 2, a durability test mechanism 3, a loading test mechanism 4 and a multi-way valve test mechanism 45. The connection between the hydraulic pump connector, the oil tank and the test mechanism ensures the efficient flow and precise control of the hydraulic oil, and improves the safety and reliability of the system. The modular design of the test system enables each test mechanism to be flexibly adjusted to meet the test requirements of different working conditions, thereby ensuring the stability and durability of the hydraulic pump in a variety of environments. The multi-way valve test mechanism 45 simulates the actual working conditions through precise oil flow distribution and provides high-precision performance verification. The stability and reliability of the entire system are improved through precise oil flow, pressure and temperature control, while optimizing the test process, improving the test efficiency and the accuracy of the results.

[0028] In some embodiments of the present invention, the hydraulic station 2 further includes a temperature measuring component 23 arranged inside the main oil tank 21, a filter component 24 connected to the bottom of the main oil tank 21 at one end and to the top of the main oil tank 21 at the other end, and a cooling component 25 connected to the main oil tank 21, and the main oil tank 21 also has an overflow valve 26. The temperature measuring component 23 can monitor the temperature of the hydraulic oil in real time to ensure that the hydraulic system operates within a safe operating temperature range and avoid oil degradation or system damage caused by excessive temperature; the filter component 24 effectively removes impurities in the oil to ensure the cleanliness of the oil, thereby extending the service life of the hydraulic pump and other key components and avoiding failures caused by pollutants; the cooling component 25 further optimizes the thermal balance of the system by reducing the temperature of the hydraulic oil, and improves the stability and performance of the hydraulic system; the overflow valve 26 can ensure the safety of the oil pressure in the main oil tank 21, prevent the system from being damaged by excessive pressure, thereby improving the safety and reliability of the overall system. It should be pointed out here that the temperature measuring component 23 has many forms, which can be a thermocouple, a resistance temperature detection, or a temperature measurement form in the form of a thermistor. It should also be noted that the filter assembly 24 can be a coarse filter, a fine filter, or a combination of filters. It should also be noted that the cooling assembly 25 can be air-cooled, water-cooled, or a dual-circuit form.

[0029] In some embodiments of the present invention, the durability test mechanism 3 also includes a fixed frame 33, and a mounting plate 33a fixedly connected to the fixed frame 33, the first drive assembly 31 is fixed to the fixed frame 33 and arranged on one side of the mounting plate 33a, the test pump 32 is arranged on the other side of the mounting plate 33a, and a coupling 34 is also provided between the first drive assembly 31 and the test pump 32. The structure of the fixed frame 33 and the mounting plate 33a provides stable support and positioning, so that the first drive assembly 31 and the test pump 32 can maintain a good centering relationship, ensuring that the power transmitted during the test is stable and reliable. The use of the coupling 34 effectively connects the first drive assembly 31 and the test pump 32, which can transmit power and alleviate the mechanical stress caused by axial deviation or vibration, thereby reducing wear and improving the service life of the system.

[0030] In some embodiments of the present invention, the durability test mechanism 3 further includes a sliding assembly 35, including a slide rail 35a fixed to the frame 1, and a slider 35b fixedly connected to the fixed frame 33, and the slider 35b can be relatively slidably arranged on the slide rail 35a. The sliding assembly 35 improves the flexibility and adaptability of the device, and can flexibly adjust the installation position of the tested pump 32 according to different test requirements to meet the test requirements of various pump types.

[0031] In some embodiments of the present invention, the loading test mechanism 4 also includes a road bridge valve block 43, and a relief valve group 26 and a pressure valve group connected to the road bridge valve block 43. The road bridge valve block 43 achieves precise control of the hydraulic system by cooperating with the relief valve group 26 and the pressure valve group. The relief valve group 26 can automatically overflow when the system pressure is too high, thereby protecting the equipment from overload damage; the pressure valve group ensures that the system operates within a predetermined pressure range to prevent unstable performance or damage caused by too low or too high pressure. Through this structure, the loading test mechanism 4 can simulate a real working environment, accurately control the flow and pressure of the hydraulic oil, and ensure that the load changes during the test meet the predetermined standards, thereby improving the accuracy and safety of the test.

[0032] In some embodiments of the present invention, the loading test mechanism 4 further has a heat dissipation component 44 connected to the road bridge valve block 43, and a pipeline is connected between the two, and hydraulic oil circulates between the road bridge valve block 43 and the heat dissipation component 44. The heat dissipation component 44 can effectively take away the heat generated by the hydraulic oil during the working process in a timely manner, avoiding the performance degradation or damage of the equipment due to excessive temperature, thereby ensuring the stability and reliability of the test process. The continuous circulation of the hydraulic oil helps to maintain the oil temperature within a suitable range, preventing the adverse effects of excessively high or low oil temperature on the system, and improving the working efficiency and service life of the equipment.

[0033] In some embodiments of the present invention, the multi-way valve testing mechanism 45 further includes a test frame 53 for fixing the test valve 51, a second driving member 54 for driving the test valve 51, and a hydraulic oil tank 55 connected to the distribution valve block 52. The test frame 53 can firmly fix the test valve 51, avoiding positional displacement or vibration during the test process, thereby ensuring the accuracy and repeatability of the test results; the second driving member 54 can simulate the working environment under real working conditions by accurately controlling the action of the test valve 51, and test the performance of the valve under different working conditions; the connection of the hydraulic oil tank 55 ensures that the system can stably provide the required hydraulic oil flow and pressure during the test process, and maintain the stable operation of the hydraulic system.

[0034] In some embodiments of the present invention, the hydraulic station 2 further includes a confluence component 27, which is connected between the first oil outlet 32b and the second oil inlet 41, and the confluence component 27 further includes a flow regulator and a pressure regulator. The confluence component 27 can accurately control the flow of hydraulic oil by adjusting the flow and pressure, ensuring that the hydraulic oil supply between different test institutions is stable and meets the predetermined requirements; the flow regulator can finely adjust the oil flow according to actual needs, thereby ensuring that each test institution can obtain a suitable oil supply under different loads, avoiding test deviations caused by insufficient or excessive oil; the pressure regulator can adjust the pressure of the hydraulic system in real time, ensuring that the system works within a stable pressure range, and preventing equipment damage or inaccurate testing caused by pressure fluctuations.

[0035] In some embodiments of the present invention, there is also an oil port transition mechanism 6 between the endurance test mechanism 3 and the loading test mechanism 4, including a transition oil port connected between the endurance test mechanism 3 and the loading test mechanism 4, and a pressure regulating component and a flow regulating component arranged inside. The oil port transition mechanism 6 plays an important transition role between the endurance test and the loading test, ensuring that the hydraulic oil flows smoothly and leaks out; during the endurance test and the loading test, the working environment and requirements of the hydraulic system may be different. The transition mechanism effectively balances the working difference between the two by adjusting the oil port flow and pressure, preventing the hydraulic oil pressure or flow from being too high or too low, thereby avoiding adverse effects on the system and test results; the pressure regulating component can accurately control the pressure to keep it within a safe range, avoiding damage to the equipment or reduction in test accuracy due to pressure fluctuations; and the flow regulating component can adjust the oil flow in real time according to different test requirements, ensuring that the oil supply of each test mechanism meets the set standards, thereby improving the stability and reliability of the system.

[0036] According to a second aspect of the present invention, there is also provided an automatic control system for a hydraulic pump comprehensive test bench, such as Fig. 9 As shown in, including: The driving module is used to adjust the working states of the hydraulic driving assembly 22, the first driving assembly 31, and the second driving assembly according to the instructions of the driving module to ensure that each test mechanism operates in a predetermined manner; The control module is used to receive real-time data from each test mechanism, generate control instructions according to preset test requirements, and adjust the working status of each test mechanism; The data acquisition module is used to collect the temperature, pressure, flow rate and liquid level parameters of the hydraulic oil in real time and feed the collected data back to the control module; Display module, including a touch screen display, which displays test data, test results and alarm information in real time, and allows the operator to set test parameters and adjust control strategies through the touch screen; The automatic adjustment module is used to automatically adjust the hydraulic oil flow, pressure and temperature parameters in the corresponding components according to the instructions generated by the control module to ensure that various indicators during the test are maintained within the preset range.

[0037] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A comprehensive test bench for hydraulic pumps, characterized in that: include: A frame, on which a hydraulic station, a durability test mechanism, a loading test mechanism and a multi-way valve test mechanism are arranged; The hydraulic station includes a main oil tank, a hydraulic drive assembly connected to the main oil tank, the main oil tank has a hydraulic oil inlet on the top and a hydraulic oil outlet on the bottom, and the hydraulic drive assembly includes a hydraulic pump connector connected to the hydraulic oil outlet; The durability test mechanism comprises at least one first drive assembly, a test pump connected to the first drive assembly, the test pump having a first oil inlet and a first oil outlet, the first oil inlet being connected to the hydraulic pump joint; The loading test mechanism has at least one group, and the loading test mechanism includes a second oil inlet connected to the first oil outlet, and a second oil outlet connected to the hydraulic oil inlet; The multi-way valve testing mechanism includes a test valve, a distribution valve block connected to the test valve, including multiple oil pipes connected to the test valve, a valve block oil outlet connected to the hydraulic oil inlet, and a valve block oil inlet connected to the hydraulic oil outlet.

2. The hydraulic pump comprehensive test bench according to claim 1 is characterized in that: The hydraulic station also includes a temperature measuring component arranged inside the main oil tank, a filtering component having one end connected to the bottom of the main oil tank and the other end connected to the top of the main oil tank, and a cooling component connected to the main oil tank. The main oil tank also has an overflow valve.

3. The hydraulic pump comprehensive test bench according to claim 1 is characterized in that: The durability testing mechanism also includes a fixing frame and a mounting plate fixedly connected to the fixing frame, the first driving assembly is fixed to the fixing frame and arranged on one side of the mounting plate, the test pump is arranged on the other side of the mounting plate, and a coupling is also provided between the first driving assembly and the test pump.

4. The hydraulic pump comprehensive test bench according to claim 3 is characterized in that: The durability testing mechanism also includes a sliding assembly, including a slide rail fixed to the frame, and a slider fixedly connected to the fixed frame, and the slider can be relatively slidably arranged on the slide rail.

5. The hydraulic pump comprehensive test bench according to claim 1 is characterized in that: The loading test mechanism further comprises a road bridge valve block, and a relief valve group and a pressure valve group communicated with the road bridge valve block.

6. The hydraulic pump comprehensive test bench according to claim 5, characterized in that: The loading test mechanism also has a heat dissipation component connected to the road bridge valve block, a pipeline is connected between the two, and hydraulic oil circulates between the road bridge valve block and the heat dissipation component.

7. The hydraulic pump comprehensive test bench according to claim 1, characterized in that: The multi-way valve testing mechanism further comprises a testing frame for fixing the tested valve, a second driving member for driving the tested valve, and a hydraulic oil tank connected to the distribution valve block.

8. The hydraulic pump comprehensive test bench according to claim 1, characterized in that: The hydraulic station further includes a merging component, which is connected between the first oil outlet and the second oil inlet, and the merging component further includes a flow regulating component and a pressure regulating component.

9. The hydraulic pump comprehensive test bench according to claim 1, characterized in that: An oil port transition mechanism is also provided between the endurance test mechanism and the loading test mechanism, including an oil port transition connected between the endurance test mechanism and the loading test mechanism, and a pressure regulating component and a flow regulating component arranged inside.

10. An automatic control system for a hydraulic pump comprehensive test bench, characterized in that: The hydraulic pump comprehensive test bench according to any one of claims 1 to 9 comprises: A driving module, used to adjust the working states of the hydraulic driving assembly, the first driving assembly, and the second driving assembly according to the instructions of the driving module, so as to ensure that each test mechanism operates in a predetermined manner; The control module is used to receive real-time data from each test mechanism, generate control instructions according to preset test requirements, and adjust the working status of each test mechanism; A data acquisition module is used to collect the temperature, pressure, flow rate and liquid level parameters of the hydraulic oil in real time, and feed the collected data back to the control module; Display module, including a touch screen display, which displays test data, test results and alarm information in real time, and allows the operator to set test parameters and adjust control strategies through the touch screen; The automatic adjustment module is used to automatically adjust the hydraulic oil flow, pressure and temperature parameters in the corresponding components according to the instructions generated by the control module to ensure that various indicators during the test process are maintained within a preset range.

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