Performance testing device of pile-up valve oil cylinder

Abstract

The utility model relates to the technical field of testing devices, and provides a performance testing device for an integrated valve oil cylinder, which comprises a testing workbench and a power mounting table, a workbench surface is formed on the surface of the testing workbench, and an oil collecting assembly and a testing tool are arranged on the workbench surface; the operating table is arranged on one side of the working table top, a touch screen, operating buttons, an instrument panel and a quick plug module are arranged on the operating table, the touch screen is used for man-machine interaction, the operating buttons are used for controlling corresponding test systems, the instrument panel is used for displaying corresponding test data, and the quick plug module is used for being connected with oil ports of a tested object; the power mounting table is selectively connected with the test workbench and comprises an oil tank and an oil pump, the oil pump is arranged on one side of the oil tank, and the oil tank is used for supplying oil to a tested object; the oil tank is further connected with the oil collecting assembly. According to the utility model, various working conditions of the tested object in different working scenes can be simulated, and performance testing can be carried out on various complex conditions encountered by the tested object in practical application.

Description

TECHNICAL FIELD

[0001] The utility model relates to test device technical field especially relates to a performance testing device of integrated valve oil cylinder. BACKGROUND

[0002] In the related art, various oil cylinders (such as leg oil cylinders, boom oil cylinders, telescopic oil cylinders) of common operating machines such as cranes, pump trucks, and fire trucks often work in combination with balance valves or hydraulic control check valves in hydraulic systems to achieve the intended target function.

[0003] In order to save installation space and improve the integration of the hydraulic system, the valve is integrated into the corresponding oil cylinder to form an integrated valve oil cylinder. For different application scenarios, the working parameters of the valve are not the same, and the corresponding working parameters of the valve need to be calibrated one by one. Therefore, the utility model embodiment provides a performance testing device for an integrated valve oil cylinder. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of performance testing device of integrated valve oil cylinder, to solve at least one technical defect in prior art above, can simulate the multiple working conditions of test object (such as valve or integrated valve oil cylinder) under different working scenarios, the performance test of various complex situations encountered by test object in practical application.

[0005] The utility model provides a kind of performance testing device of integrated valve oil cylinder, comprising:

[0006] Test workbench, comprising:

[0007] Workbench surface is formed in the upper surface of the test workbench, the workbench surface is equipped with oil collection component and test tooling, the test tooling is suitable for clamping test object, and the oil collection component is used to collect oil during testing;

[0008] Operation platform is located in one side of the workbench surface, the operation platform is equipped with touch screen, operating button, instrument panel and quick plug module, the touch screen is used to carry out man-machine interaction, the operating button is used to carry out the control of corresponding test system, the instrument panel is used to display corresponding test data, and the quick plug module is used to connect with each oil port of the test object;

[0009] Power installation platform is selectively connected with the test workbench, and the power installation platform comprises an oil tank and an oil pump, the oil pump is arranged on one side of the oil tank, and the oil tank is used to supply oil to the test object;The oil tank is also connected with the oil collection component.

[0010] According to the performance testing device of integrated valve oil cylinder provided by the utility model, the oil collection component comprises:

[0011] A first baffle and a second baffle are respectively arranged on two sides of the workbench top;

[0012] A third baffle is arranged on one side of the workbench top and is connected with the first baffle and the second baffle respectively;

[0013] The side wall of the operation table, the first baffle, the second baffle and the third baffle enclose an oil collecting groove, a bottom wall of the oil collecting groove is provided with an oil collecting port, the oil collecting port is communicated with the oil tank, and oil leaked into the oil collecting groove is recovered to the oil tank.

[0014] According to the performance testing device of the integrated valve oil cylinder, at least one of the first baffle and the second baffle is provided with a positioning groove, and the positioning groove is used for positioning the test object.

[0015] According to the performance testing device of the integrated valve oil cylinder, the inside of the test workbench is provided with:

[0016] A first partition plate and a second partition plate are arranged perpendicularly to each other to separate the inside of the test workbench into an electrical installation area, a tool storage area and a valve block installation area, the electrical installation area is used for installing electrical elements, the tool storage area is used for placing operation tools, and the valve block installation area is used for installing corresponding test valves.

[0017] According to the performance testing device of the integrated valve oil cylinder, the quick plug-in module comprises:

[0018] A male connector is arranged on the side wall of the operation table and located on one side of the operation table.

[0019] A female connector is connected to the male connector and arranged in one-to-one correspondence with the male connector, and the female connector is arranged on the other side opposite to one side of the operation table.

[0020] One of the male connector and the female connector is connected with the corresponding test system, and the other of the male connector and the female connector is connected with the corresponding oil port of the test object.

[0021] According to the performance testing device of the integrated valve oil cylinder, further comprising:

[0022] A pressure sensor is arranged on the corresponding hydraulic oil circuit of the test workbench and is used for detecting the pressure of the corresponding hydraulic oil circuit.

[0023] A flow sensor is arranged at the outlet of the oil pump and is used for detecting the outlet flow of the corresponding oil pump.

[0024] According to the performance testing device of the integrated valve oil cylinder, further comprising:

[0025] A heat sink is arranged on one side of the test workbench and used for dissipating heat of corresponding components of the test workbench.

[0026] According to the performance testing device for the integrated valve oil cylinder, the test workbench and the power mounting table are detachably connected.

[0027] According to the performance testing device for the integrated valve oil cylinder, universal wheels are arranged below the test workbench and the power mounting table.

[0028] The performance testing device for the integrated valve oil cylinder can simulate various working conditions of a test object (such as an integrated valve oil cylinder or a balance valve) in different working scenes, can accurately measure various parameters of the test object in a test process, simultaneously provides stable oil supply and working environment for the test object, reduces interference of external factors on a test result, and ensures accuracy of the test result.

[0029] In addition, the test object and the test device are connected conveniently and quickly by using the quick plug module, the connection time and the possibility of incorrect connection are reduced, and the test efficiency is improved. The oil collecting assembly collects oil in the test process and returns the oil to the oil tank for recycling, reduces waste of the oil, and reduces the test cost. Meanwhile, the integrated design of the test device (such as integration of the integrated valve oil cylinder and the test tool, the quick plug module and the like) reduces the number of external connection pipelines and components, and reduces the manufacturing cost of the equipment. Meanwhile, the equipment has high universality, can test various types of integrated valve oil cylinders, reduces the purchase demand of enterprises for different types of test equipment, and further saves the cost. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without paying creative labor.

[0031] Figure 1 It is the structure schematic view of the performance testing device for the integrated valve oil cylinder provided by the utility model embodiment.

[0032] Figure 2 It is the side view of the performance testing device for the integrated valve oil cylinder provided by the utility model embodiment.

[0033] Figure 3 It is the front view of the performance testing device for the integrated valve oil cylinder provided by the utility model embodiment.

[0034] Figure 4 is the system block diagram of the performance testing device of the integrated valve oil cylinder provided by the embodiment of the present application.

[0035] Figure 5 is the test system diagram corresponding to the performance testing device of the integrated valve oil cylinder provided by the embodiment of the present application.

[0036] Reference signs:

[0037] 10, test workbench; 101, workbench surface; 1011, first baffle; 1012, second baffle; 1013, third baffle; 1014, oil collecting groove; 1015, oil collecting port; 1016, positioning groove; 102, operation table; 1021, touch screen; 1022, operation button; 1023, instrument panel; 1024, quick plug module; 103, first partition plate; 104, second partition plate;

[0038] 20, power installation table; 201, oil tank;

[0039] 30, test tool; 40, universal wheel; 50, handrail. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0041] Figure 1 is the structural schematic diagram of the performance testing device of the integrated valve oil cylinder provided by the embodiment of the present application. Figure 2 is the side view of the performance testing device of the integrated valve oil cylinder provided by the embodiment of the present application.

[0042] Referring to Figure 1 and Figure 2 , the embodiment of the present application provides a performance testing device of an integrated valve oil cylinder, which comprises a test workbench 10 and a power installation table 20.

[0043] The test workbench 10 can be made of high-strength aluminum alloy material. So as to ensure that enough space can be provided to install the integrated valve oil cylinder to be tested and the related hydraulic system.

[0044] The test workbench 10 comprises a workbench surface 101 and an operation table 102, the workbench surface 101 is formed on the upper surface of the test workbench 10, and the workbench surface 101 is provided with an oil collecting assembly and a test tool 30, the test tool 30 is suitable for clamping a test object, and the oil collecting assembly is used for collecting oil during the test.

[0045] The clamp of the test tool 30 can be driven by hydraulic pressure or a mechanical screw. For the clamp driven by hydraulic pressure, power can be provided by a small hydraulic station, the clamping jaw part of the clamp is made of high-strength alloy steel, and the surface is treated to prevent slipping, so as to ensure that the test object (an integrated valve oil cylinder) can be clamped firmly. The clamp driven by a mechanical screw can realize the opening and closing of the clamping jaw through a precise thread structure, and can be finely adjusted according to the size of the test object.

[0046] The operation table 102 is arranged on one side of the workbench surface 101, and the operation table 102 is provided with a touch screen 1021, operation buttons 1022, an instrument panel 1023 and a quick plug module 1024. The touch screen 1021 is used for human-computer interaction, the operation buttons 1022 are used for controlling the corresponding test system, the instrument panel 1023 is used for displaying the corresponding test data, and the quick plug module 1024 is used for connecting with each oil port of the test object.

[0047] The human-computer interaction interface of the touch screen 1021 can be divided into multiple functional areas. For example, a test parameter setting area can be set, in which parameters such as rated pressure and stroke of the oil cylinder can be input; a test mode selection area, including manual test, automatic test, cycle test and the like; a data display area, which displays test data in the form of charts and numbers in real time, such as pressure-time curve, displacement-time curve and the like; and an alarm area, which displays alarm information and gives an audible prompt in time when an abnormal situation occurs during the test, such as excessively high pressure, displacement overrun and the like.

[0048] The instrument panel 1023 can be a pressure gauge or a flowmeter. The pressure gauge selects a high-precision digital pressure gauge, which can accurately measure a pressure range from several megapascals to several tens of megapascals. The dial of the pressure gauge adopts an anti-glare design, and the digital display is clear, so that an operator can read pressure data under different lighting conditions. The flowmeter can display real-time flow values and has a flow accumulation function, which is convenient for statistics of total flow during the test.

[0049] The quick plug connector in the quick plug module 1024 can select different specifications according to the type and size of the oil port of the test object, such as metric or imperial connectors. The connector adopts a self-sealing design, which can realize sealed connection by simply inserting when connected with the oil port of the test object, and needs to press the release button when pulled out, so as to ensure the convenience and reliability of the connection.

[0050] In addition, in order to avoid connection errors, each quick connector is marked with corresponding oil port identification, such as "oil inlet", "oil outlet", "oil return", etc., and corresponds to the identification on the oil port of the test object.

[0051] The power mounting table 20 is selectively connected with the test workbench 10, and the power mounting table 20 comprises an oil tank 201 and an oil pump (not shown in the figure), the oil pump is arranged on one side of the oil tank 201, and the oil tank 201 is used for supplying oil to the test object; the oil tank 201 is also connected with the oil collecting assembly and used for receiving oil liquid of the oil collecting assembly.

[0052] The oil tank 201 adopts a double-layer structure, the outer layer is a protective shell made of steel plate, the inner layer is a plastic inner container resistant to corrosion, and heat insulation material can be filled between the two layers to reduce the influence of external temperature on the temperature of oil liquid in the oil tank 201. An oil filling port and a vent hole are arranged on the top of the oil tank 201, the oil filling port is provided with a filter screen to prevent impurities from entering the oil tank 201, and the vent hole is provided with an air filter to ensure that the air pressure inside and outside the oil tank 201 is balanced and prevent dust and moisture from entering.

[0053] In addition, an oil level sensor, an oil temperature sensor and an oil quality monitoring sensor are arranged in the oil tank 201. The oil level sensor can adopt a buoyancy type liquid level meter or an ultrasonic wave measurement principle, can accurately measure the liquid level height of oil liquid in the oil tank 201, and transmit data to the instrument panel 1023 on the operation table 102 for display; the oil temperature sensor monitors the oil liquid temperature in real time, and when the oil temperature exceeds the set range, the oil temperature adjusting device (such as a heating or cooling device) is automatically started through the control system; the oil quality monitoring sensor can detect the pollution degree of the oil liquid, such as water content and impurity content, and when the oil quality does not meet the requirements, the operator is reminded to replace the oil liquid in time.

[0054] The oil pump is selected according to the test requirements, such as a vane pump or a plunger pump. If the test system requires high pressure and low flow, a plunger pump can be selected; if large flow and relatively low pressure are required, a vane pump is selected. The displacement, rated pressure and other parameters of the oil pump are determined according to the performance requirements of the test object (integrated valve oil cylinder).

[0055] The oil pump is driven by an electric motor, and the electric motor and the oil pump are connected through a shaft coupling. The electric motor adopts a variable frequency speed regulation motor, and the rotation speed of the electric motor can be accurately controlled through a frequency converter according to different working conditions in the test process, so that the output flow and pressure of the oil pump are adjusted to meet the test requirements.

[0056] The working process of the performance test device for the integrated valve oil cylinder provided in the embodiment of the utility model is as follows:

[0057] The test object (integrated valve cylinder) is placed on the fixture of the test tool 30, and its position is ensured by the positioning device. Then, the oil ports of the test object are connected to the quick plug module 1024 on the operation table 102. At the same time, the oil tank 201 of the power installation table 20 is connected to the oil collecting assembly through the oil pipe, ensuring that the oil can be recycled.

[0058] The operator inputs the relevant parameters of the test object on the touch screen 1021, such as the rated pressure, stroke, and piston diameter of the cylinder, and selects the test mode (manual test, automatic test, or cycle test). According to the test requirements, other parameters such as the pressure range and speed range of the test can also be set.

[0059] The operator presses the operation button 1022 on the operation table 102, and the motor starts to drive the oil pump to work. The oil pump extracts oil from the oil tank 201 and delivers it to the oil inlet of the test object through the oil pipe. During the process of oil entering the test object, various sensors such as pressure sensors and displacement sensors start to work, and real-time data such as the pressure, displacement, and speed of the cylinder are collected. These data are transmitted to the instrument panel 1023 and the touch screen 1021 on the operation table 102 for display. The operator can monitor the changes of the test data in real time through the charts and numbers on the touch screen 1021, and the pointer-type instruments on the instrument panel 1023 can also intuitively display the pressure, flow, and other data.

[0060] According to the selected test mode, the corresponding working condition simulation is carried out:

[0061] Manual test: The operator can manually adjust the speed of the oil pump through the operation button 1022, thereby changing the flow and pressure of the oil to simulate different working conditions and observe the performance of the test object under different conditions.

[0062] In the automatic test mode, the test system automatically adjusts the output parameters of the oil pump according to the pre-set program, gradually increases or decreases the pressure, changes the flow, and performs comprehensive performance testing on the test object. For example, the pressure is gradually increased according to the set pressure gradient until the rated pressure of the test object is reached, and the displacement, speed, and other data at each pressure point are recorded.

[0063] In the cycle test mode, the test system will repeatedly test the test object according to the set cycle number and working condition parameters.

[0064] When the test is completed, the motor stops working and the oil pump stops supplying oil. At this time, the test system stops data collection, and the control system on the touch screen 1021 and the operating platform 102 collates and analyzes all the collected data. For example, the working efficiency and leakage of the oil cylinder can be calculated, and the test results can be displayed on the touch screen 1021 in the form of a report, and the data can also be saved to an external storage device for subsequent further analysis and archiving. During the test, the oil collected by the oil collecting assembly is returned to the oil tank 201 through the oil pipe. After the test is completed, the operator can disassemble the connection between the test object and the quick plug module 1024, and clean the test tool 30 and the oil that may remain on the operating platform 102.

[0065] It can be understood that the performance test device for integrated valve oil cylinder provided by the embodiments of the utility model can simulate various working conditions of the test object (such as integrated valve oil cylinder or balance valve) under different working scenes, can accurately measure various parameters of the test object in the test process, and at the same time, provides a stable oil supply and working environment for the test object, reduces the interference of external factors on the test result, and ensures the accuracy of the test result.

[0066] In addition, the quick plug module 1024 is adopted to connect, so that the connection between the test object and the test device is convenient and fast, the connection time is reduced, the possibility of misconnection is reduced, and the test efficiency is improved. The oil collecting assembly collects the oil in the test process and returns it to the oil tank 201 for recycling, reduces the waste of oil, and reduces the test cost. At the same time, the integrated design of the test device (such as the integration of the integrated valve oil cylinder and the test tool 30, the quick plug module 1024 and the like) reduces the number of external connecting pipelines and components, and reduces the manufacturing cost of the equipment. At the same time, the equipment has strong universality, can test various types of integrated valve oil cylinders, reduces the purchase demand of enterprises for different types of test equipment, and further saves the cost.

[0067] Continue to refer to Figure 1 and Figure 2 In some embodiments of the utility model, the oil collecting assembly includes a first baffle 1011, a second baffle 1012 and a third baffle 1013, and the first baffle 1011 and the second baffle 1012 are respectively arranged on both sides of the workbench surface 101. The third baffle 1013 is arranged on one side of the workbench surface 101 and is connected with the first baffle 1011 and the second baffle 1012 respectively. The first baffle 1011, the second baffle 1012 and the third baffle 1013 can be made of stainless steel plate, and the first baffle 1011, the second baffle 1012 and the third baffle 1013 are connected with the box body of the test workbench 10 by welding.

[0068] The side wall of the operation table 102, the first baffle 1011, the second baffle 1012 and the third baffle 1013 surround the oil collecting groove 1014, the bottom wall of the oil collecting groove 1014 is provided with an oil collecting port 1015, the oil collecting port 1015 is communicated with the oil tank 201, and the oil liquid leaked into the oil collecting groove 1014 is collected into the oil tank 201.

[0069] In addition, the inner surface of the oil collecting groove 1014 can be coated with an oil-resistant and corrosion-resistant coating, such as a fluorocarbon coating. The coating can effectively prevent the oil liquid from eroding the wall surface of the oil collecting groove 1014, thereby prolonging the service life of the oil collecting groove 1014. The oil collecting ports 1015 are arranged in the bottom wall of the oil collecting groove 1014, and an oil discharging port (not shown in the figure) is arranged at the bottom of the groove wall close to the oil tank 201, and the oil discharging port is connected with the oil tank 201 through an oil-resistant rubber hose, so as to communicate the oil collecting groove 1014 with the oil tank 201.

[0070] A one-way valve can be installed on the rubber hose to prevent the oil liquid in the oil tank 201 from flowing back to the oil collecting groove 1014. Meanwhile, a filter screen is installed at the oil discharging port to filter the impurities in the oil liquid, so as to prevent the impurities from entering the oil tank 201.

[0071] The performance testing device of the integrated valve oil cylinder provided by the embodiment of the utility model can effectively collect the leaked oil liquid in the testing process, no matter whether the leakage is caused by the sealing problem of the integrated valve oil cylinder itself or the slight leakage in the process of connecting the hydraulic oil circuit. The oil liquid is collected by the oil collecting groove 1014. The oil liquid is collected into the oil tank 201 through the oil collecting port 1015, so as to avoid waste of the oil liquid and reduce the testing cost. Meanwhile, the oil liquid collected into the oil tank 201 can be treated again for testing or other suitable purposes, so as to help improve the utilization rate of the oil liquid.

[0072] In addition, the third baffle 1013 can also be made of a transparent polycarbonate (PC) plate. The transparent third baffle 1013 facilitates observation of the oil liquid inside the oil collecting groove 1014 during the testing process, and the polycarbonate material has good toughness and oil resistance.

[0073] Continuously referring to Figure 1 and Figure 2 In some embodiments of the utility model, at least one of the first baffle 1011 and the second baffle 1012 is provided with a positioning groove 1016, and the positioning groove 1016 is used for positioning the test object.

[0074] That is, positioning grooves 1016 can be provided on both the first baffle 1011 and the second baffle 1012, or the positioning grooves 1016 can be provided on the first baffle 1011 or the second baffle 1012, to facilitate installation by the test subject. The positioning grooves 1016 can be circular arc notches.

[0075] Figure 3 It is the front view of the performance testing device of the integrated valve oil cylinder provided in the embodiment of the utility model.

[0076] Referring to Figure 3 In some embodiments of the utility model, the inside of the test workbench 10 is provided with a first partition plate 103 and a second partition plate 104, and the first partition plate 103 and the second partition plate 104 are arranged perpendicularly to each other to separate the inside of the test workbench 10 into an electrical installation area, a tool storage area and a valve block installation area. The electrical installation area is used for installing electrical elements, the tool storage area is used for placing operating tools, and the valve block installation area is used for installing corresponding test valves.

[0077] In the embodiment of the utility model, the inside of the test workbench 10 (or rack) is separated into an electrical installation area, a tool storage area and a valve block installation area by arranging the first partition plate 103 and the second partition plate 104, thereby realizing reasonable division of space. This partitioning mode makes each area have a clear function, and different types of equipment and articles can be accommodated in the limited internal space at the same time, thereby improving the overall utilization rate of the internal space of the test workbench 10.

[0078] The electrical installation area is specially used for installing electrical elements such as relays, contactors, etc. In this way, wiring, grounding and other operations can be performed according to the installation requirements of the electrical elements, and the design, installation and maintenance of the electrical system are facilitated. The tool storage area is used for placing operating tools, so that the storage of tools is orderly, and the tools can be quickly found when needed, thereby improving work efficiency. The valve block installation area is used for installing corresponding test valves, which is conducive to centralized installation and debugging of the test valves.

[0079] By separating the electrical elements from the tools and valve assemblies, the risk of electric shock caused by accidental contact with the electrical elements when operating the tools or valve assemblies is reduced, which helps to improve safety during operation. At the same time, when performing hydraulic operation of the test valve, isolation from the electrical elements reduces the probability of occurrence of dangerous situations such as fire and explosion caused by contact between hydraulic oil leakage and electrical equipment.

[0080] Continuing to refer to Figures 1 to 3 In some embodiments of the utility model, the quick plug module 1024 includes a male connector and a female connector.

[0081] The male connector is arranged on the side wall of the operation table 102 and located at one side of the operation table 102, and the female connector is connected to the male connector and arranged in one-to-one correspondence with the male connector, and the female connector is arranged on the other side of the operation table 102 opposite to the one side.

[0082] One of the male connector and the female connector is connected with the corresponding test system, and the other of the male connector and the female connector is connected with the corresponding oil port of the test object.

[0083] In this way, the test object can be quickly and reliably connected with the performance testing device of the integrated valve oil cylinder, without the need of using complex tools for tightening operation, and the connection time is shortened, and especially in the test scene that the test object needs to be frequently replaced or the hydraulic oil circuit connection needs to be adjusted, the test efficiency can be significantly improved.

[0084] Figure 4 The system block diagram of the performance testing device of the integrated valve oil cylinder is provided in the embodiments of the present application.

[0085] Referring to Figure 4 In some embodiments of the present application, the performance testing device of the integrated valve oil cylinder further comprises a control unit, a driving unit, an execution unit and a detection unit. The control unit is interactively connected with the touch screen 1021, the control unit is connected with the driving unit, the driving unit is connected with the execution unit, the detection unit is arranged on the hydraulic oil circuit of the execution unit, the detection unit is connected with the control unit through a conditioning circuit, and is used for feeding back the detected information to the control unit. The control unit controls the driving unit according to the detection information fed back by the detection unit and the control instruction input by the touch screen 1021.

[0086] The detection unit comprises a pressure sensor, a flow sensor and a mechanical pressure gauge, etc. The pressure sensor is arranged on the corresponding hydraulic oil circuit of the test workbench 10, and is used for detecting the pressure of the corresponding hydraulic oil circuit. The flow sensor is arranged at the outlet of the oil pump, and is used for detecting the outlet flow of the corresponding oil pump. The mechanical pressure gauge is used for displaying the pressure before each test valve (such as an electromagnetic valve).

[0087] The driving unit comprises a relay and a contactor, etc.

[0088] The execution unit comprises an oil pump and various test valves (such as valves or valve blocks),

[0089] In some embodiments of the present application, the performance testing device of the integrated valve oil cylinder further comprises a radiator, which is arranged on one side of the test workbench 10, and is used for radiating the corresponding components of the test workbench 10.

[0090] In some embodiments of the utility model, the oil tank 201 is provided with an access hole, and a cover is arranged on the access hole; the access hole is reserved to clean the inside of the oil tank 201, and ensure that the oil cleanliness is not less than NAS7 after the installation and adjustment are completed.

[0091] In some embodiments of the utility model, the test workbench 10 and the power mounting table 20 are detachably connected. For example, the test workbench 10 and the power mounting table 20 are connected to each other through buckles, and the buckles are connected to each other when the whole needs to be moved and transported. When the target position is positioned, vibration is avoided and mutual interference is avoided.

[0092] Preferably, the test workbench 10 and the power mounting table 20 are each provided with universal wheels 40, four universal wheels 40 are arranged below each of the test workbench 10 and the power mounting table 20, and a total of eight universal wheels 40 are included, and the weight borne by a single universal wheel 40 is not less than 2t.

[0093] In some embodiments of the utility model, handrails 50 are arranged on the left and right sides of the test workbench 10 to facilitate the movement of the test workbench 10.

[0094] Figure 5 It is the test system diagram corresponding to the performance test device of the integrated valve oil cylinder provided by the embodiments of the utility model.

[0095] Referring to Figure 5 , the embodiments of the utility model provide a test system corresponding to a performance test device of an integrated valve oil cylinder. The test system corresponding to the performance test device of the integrated valve oil cylinder comprises a main system, a pilot system, a merging system and a rack system.

[0096] The rack system comprises a bearing device and a control assembly. The bearing device is adapted to support a test object, and the control assembly is adapted to be connected with the test object and used for controlling the test object to realize corresponding test functions.

[0097] The bearing device adopts a high-strength steel structure frame and has sufficient rigidity and strength, so as to stably support the test object. The bearing device is provided with adjustable clamps and positioning devices, so as to install and fix test objects (such as integrated valve oil cylinders) of different specifications and models, and ensure the stability of the oil cylinder in the test process.

[0098] The control assembly comprises a first control valve (corresponding to valve ① in the drawings), a second control valve (corresponding to valve ② in the drawings) and a fourteenth control valve (corresponding to valve ) in the drawings). The first control valve and the second control valve are arranged in series, the first control valve is connected with the test object, and the second control valve is connected with the third quick plug-in module; the fourteenth control valve is connected with the test object and the third quick plug-in module.

[0099] The first control valve is an electromagnetic reversing valve, which is used to control the flow direction of the oil in the test object. The test object (such as a balance valve) is installed in the oil cylinder, and the pressure test function is built for the 1A port (load end) of the test balance valve. After the target test function is completed, the pressure relief function is realized for the entire test system. When there is no need to test the port, the pressure isolation function is realized. The second control valve is a two-position three-way electromagnetic valve, which is used to control the oil flow from the tenth valve assembly (valve group 10) to the test integrated valve cylinder in cooperation with the first control valve. For example, when oil needs to be supplied to the 1A port, the first control valve (valve 1) is in the left position, and the second control valve (valve 2) is in the left position. When the oil needs to be returned from the 1A port to the tank, the first control valve (valve 1) is in the left position, and the second control valve (valve 2) is in the right position. When the pressure between the 1A port and the combined system needs to be isolated, the first control valve (valve 1) is in the right position, and the second control valve (valve 2) is in the right position.

[0100] The fourteenth control valve is used to only realize positive conduction when the test integrated valve cylinder is running, which is equivalent to an oil pipe. When the test valve is integrated in the oil cylinder, the first control valve (corresponding to valve 1 in the figure) and the second control valve (corresponding to valve 2 in the figure) work in the left position. The pressure oil from the oil pump reaches the 1A port in the oil cylinder. The fourteenth control valve works in the left position under the condition that the pressure oil pressure is verified to be at the corresponding pressure. The T port of the fourteenth control valve will have oil flow. The overflow function and reset function of the test valve integrated in the oil cylinder are verified.

[0101] The oil inlet of the main system is connected to the tank through a high-performance 1# oil pump, and the oil outlet of the main system is connected to the test object through the first quick plug module, which is used to control the pressure of the main system under the corresponding test function.

[0102] That is, the main system includes a main oil circuit and a first overflow oil circuit. One end of the main oil circuit is connected to the tank, and the other end of the main oil circuit is provided with a first quick plug module. The first quick plug module is connected to the hydraulic control valve of the test object. The main oil circuit is used to control the pressure of the performance test system under the corresponding test function. The first overflow oil circuit is connected to the main oil circuit, which is used to adjust and maintain the pressure of the main oil circuit.

[0103] The 1# oil pump, the eighth control valve (corresponding to valve 7 in the figure), the 1# flow sensor, the 5# pressure sensor, and the 6# pressure sensor are arranged on the main oil circuit.

[0104] The 1# oil pump can be a plunger pump, which has the characteristics of large flow, high pressure, and high efficiency, and can meet the requirements of different pressures and flows in the test process. That is, the 1# oil pump is used to provide adjustable low pressure and large flow for the entire test system.

[0105] The eighth control valve (valve 8) can be a three-position four-way manual reversing valve to facilitate manual mode operation. When the test system needs to implement automatic control function, the eighth control valve can be replaced by an electromagnetic reversing valve instead of the three-position four-way manual reversing valve. The eighth control valve has an A oil port, a B oil port, a P oil port and a T oil port, and the T oil port is connected with a transparent return oil pipe, and the end of the return oil pipe is provided with an F point for testing.

[0106] The 1# oil pump is connected with the oil tank and is used for pumping pressure oil for the main oil circuit. That is, the 1# oil pump has an oil inlet and an oil outlet, the oil inlet of the 1# oil pump is connected with the oil tank through an oil pipe, and the oil outlet of the 1# oil pump is connected with the P oil port of the eighth control valve through an oil pipe. The 1# oil pump can be a plunger pump, which has the characteristics of large flow, high pressure and high efficiency, and can meet the requirements of different pressures and flows in the test process. That is, the 1# oil pump is used to provide adjustable low pressure and large flow for the whole test system.

[0107] The 1# flow sensor is arranged on the oil circuit between the 1# oil pump and the P oil port of the eighth control valve, and is used for monitoring the flow of the oil outlet of the 1# oil pump to provide flow data for the test system.

[0108] The 5# pressure sensor is arranged on the oil circuit between the A oil port of the eighth control valve and one quick plug connector in the first quick plug module, and is used for monitoring the pressure value in the corresponding hydraulic oil circuit.

[0109] The 6# pressure sensor is arranged on the oil circuit between the B oil port of the eighth control valve and the other quick plug connector in the first quick plug module, and is used for monitoring the pressure value in the corresponding hydraulic oil circuit.

[0110] In some embodiments of the utility model, a 1# throttle valve is further arranged on the main oil circuit, the 1# throttle valve is arranged on the oil circuit between the oil outlet of the 1# oil pump and the 1# flow sensor, the 1# throttle valve controls the flow of pressure oil by changing the throttle section or the throttle length, so that the flow in the corresponding hydraulic oil circuit remains stable.

[0111] A 3# pressure gauge and a first check valve are further arranged on the main oil circuit, and the 3# pressure gauge and the first check valve are arranged on the oil circuit between the 1# flow sensor and the P oil port of the eighth control valve in sequence. The 3# pressure gauge is used to display the pressure before being applied to the P oil port of the eighth control valve. The first check valve is used to prevent the reverse flow of oil. When the pressure of the test system suddenly rises, the backflow of oil into the 1# oil pump can be avoided, and the oil pump can be damaged.

[0112] In some embodiments of the utility model, a 5# overflow valve, a second check valve and a ninth control valve (corresponding to valve 9 in the drawings) are arranged on the first overflow oil circuit.

[0113] 5# overflow valve is used to make the oil flow back to the tank when the return oil pipe of G point reaches the set pressure of 5# overflow valve, to ensure the inlet pressure of 5# overflow valve, i.e. the outlet pressure of 1# oil pump is constant. When the oil from the outlet of 1# oil pump is higher than the set pressure of 5# overflow valve, i.e. there is overflow oil through the connection port of G point to flow back to the tank, at the same time, the outlet pressure of 1# oil pump is ensured to be stable.

[0114] In the system, the direct overflow valve of 5# overflow valve is connected in series on the return oil pipe of G point, the remote control port of the pilot overflow valve of 5# overflow valve is connected to the oil inlet port of the direct overflow valve, and the remote pressure regulation is realized by the pilot overflow valve (i.e. remote pressure regulating valve).

[0115] The ninth control valve (valve ⑨) is self-locked with 5# overflow valve, and the ninth control valve (valve ⑨) can be a two-position two-way electromagnetic valve. The ninth control valve is used to control the working pressure of 1# oil pump and unloading in the shutdown state.

[0116] The second check valve is arranged on the return oil pipe of G point, and is used to prevent the reverse flow of oil.

[0117] The oil inlet port of the pilot system is connected with the tank through 2# oil pump, and the oil outlet port of the pilot system is connected with the test object through the second quick plug module, and is used to control the pressure of the pilot system under the corresponding test function.

[0118] That is, the pilot system comprises a pilot oil circuit and a second overflow oil circuit. One end of the pilot oil circuit is connected with the tank, and the other end of the pilot oil circuit is provided with the second quick plug module. The second quick plug module is connected with the hydraulic control valve of the test object. The pilot oil circuit is used to control the pressure of the performance test system under the corresponding test function. The second overflow oil circuit is connected with the pilot oil circuit, and is used to adjust and maintain the pressure of the pilot oil circuit.

[0119] The pilot oil circuit is provided with 2# oil pump, the sixth control valve (valve ⑥), the fourth control valve (valve ④), the fifth control valve (valve ⑤), 2# flow sensor, 3# pressure sensor and 4# pressure sensor.

[0120] The 2# oil pump is used to provide adjustable high pressure and small flow for the whole system (when the opening pressure of the valve needs to be tested, low pressure and small flow can be provided for the pilot port of the valve).

[0121] The sixth control valve (valve ⑥) can be a three-position four-way O-type electromagnetic valve. The sixth control valve is used to control the forward conduction function of the hydraulic control valve of the test object from 2# port (valve port) to 1# (load port). When the hydraulic control valve of the test object is forward conducted, the sixth control valve works in the left position. When the hydraulic control valve of the test object needs to be reverse conducted, the sixth control valve works in the right position. After the pilot oil with a certain pressure is provided, the reverse conduction from 1# load port to 2# port (valve port) can be realized.

[0122] The sixth control valve (valve ⑥) has an A oil port, a B oil port, a P oil port and a T oil port, and the T oil port of the sixth control valve is connected to the oil return pipe of the D point, that is, the T oil return port of the sixth control valve is connected to the oil return tank through the transparent oil return pipe and the D point connector.

[0123] The 2# oil pump is connected to the oil tank and is used for pumping pressure oil for the pilot oil circuit, that is, the 2# oil pump has an oil inlet and an oil outlet, the oil inlet of the 2# oil pump is connected to the oil tank through an oil pipe, and the oil outlet of the 2# oil pump is connected to the sixth control valve through an oil pipe, that is, the 2# oil pump is used for providing adjustable high-pressure small flow for the whole system (when the opening pressure of the valve needs to be tested, low-pressure small flow can be provided for the pilot port of the valve).

[0124] The fourth control valve is arranged on the oil circuit between the A oil port of the sixth control valve and the second quick plug module, and the fifth control valve is arranged on the oil circuit between the B oil port of the sixth control valve and the second quick plug module, wherein the fourth control valve (valve ④) and the fifth control valve (valve ⑤) are both two-position two-normal-through electromagnetic ball valves, and when there is leakage in the middle position of the sixth control valve, the fourth control valve and the fifth control valve are used for isolating pressure transmission to the second quick plug module.

[0125] The 2# flow sensor is arranged on the oil circuit between the oil outlet of the 2# oil pump and the P oil port of the sixth control valve, and is used for monitoring the flow of the oil outlet of the 2# oil pump.

[0126] The 3# pressure sensor is arranged on the oil circuit between one quick plug connector in the second quick plug module and the fourth control valve, and is used for monitoring the pressure value in the corresponding hydraulic oil circuit.

[0127] The 4# pressure sensor is arranged on the oil circuit between the other quick plug connector in the second quick plug module and the fifth control valve, and is used for monitoring the pressure value in the corresponding hydraulic oil circuit.

[0128] In some embodiments of the utility model, a 2# throttle valve is further arranged on the pilot oil circuit, the 2# throttle valve is arranged on the oil circuit between the oil outlet of the 2# oil pump and the 2# flow sensor, and is used for adjusting the pressure oil flow in the corresponding oil circuit, so that the flow in the corresponding hydraulic oil circuit remains stable.

[0129] In some embodiments of the utility model, a third check valve and a 2# pressure gauge are arranged on the pilot oil circuit.

[0130] The third check valve is arranged on the oil circuit between the 2# flow sensor and the P oil port of the sixth control valve, and is used for preventing reverse flow of oil. When the system pressure suddenly rises, the oil can be prevented from flowing back into the 2# oil pump, thereby damaging the oil pump.

[0131] 2# pressure gauge is arranged on the oil line between the third one-way valve and the P oil port of the sixth control valve, and is used for displaying the pressure before the P oil port of the sixth control valve.

[0132] In some embodiments of the utility model, 4# overflow valve, fourth one-way valve and seventh control valve are arranged on the second overflow oil line.

[0133] 4# overflow valve is connected in series on the oil return pipe of E point, and is used for overflowing the excess flow back to the oil tank when the oil return pipe of E point reaches the set pressure of 4# overflow valve, so as to ensure the inlet pressure of 4# overflow valve. When the oil liquid from the outlet of 2# oil pump is higher than the set pressure of 4# overflow valve, that is, the overflow oil liquid flows back to the oil tank through the connecting port of E point, at the same time, the outlet pressure of 2# oil pump is ensured to be stable.

[0134] Among them, the direct overflow valve of 4# overflow valve is connected in series on the oil return pipe of E point, and the remote control port of the pilot overflow valve of 4# overflow valve is connected to the oil inlet port of the direct overflow valve, and the remote pressure regulating is realized by using the pilot overflow valve (i.e. remote pressure regulating valve).

[0135] The fourth one-way valve is arranged on the oil return pipe of E point, and is used for preventing the reverse flow of oil liquid.

[0136] The seventh control valve is self-locked with 4# overflow valve, and the seventh control valve (valve ⑦) can be a two-position two-way electromagnetic valve, and the seventh control valve is used for controlling the pressure establishment of the pilot overflow valve of 2# oil pump.

[0137] It should be noted that the oil line before the oil pump of the main oil line and the pilot oil line is provided with an oil filter, that is, the oil suction ports of 1# oil pump and 2# oil pump can be connected with the oil tank through the coarse oil filter, and the coarse oil filter can effectively filter out large particles in the oil liquid, thereby protecting 1# oil pump and 2# oil pump.

[0138] The oil inlet of the confluence system is connected with the main system and the pilot system respectively, the oil outlet of the confluence system is connected with the control assembly and the test object through the third quick plug module respectively, and the test object is used for controlling the reciprocating action. The confluence control of the oil liquid in the main system and the pilot system is realized through a series of reversing valves and one-way valves. When the test object needs to be tested under specific working conditions, the oil liquid ratio of the main system and the pilot system can be flexibly adjusted, so as to simulate different actual working conditions.

[0139] That is, the confluence system is connected with the oil tank through 1# oil pump and the corresponding pipeline, the confluence system shares the same oil pump with the main system, the flow resources of the oil pump can be fully utilized, and the economy and compactness of the system are improved. The confluence system is connected with the oil tank through 2# oil pump and the corresponding pipeline, and the confluence system also shares the same oil pump with the pilot system, so that the flow resources of the oil pump can be fully utilized, and the economy and compactness of the system are improved.

[0140] The first, second and third quick plug modules are all designed in a standardized manner, can be quickly plugged and unplugged, and have the advantages of reliable sealing, etc. The first, second and third quick plug modules each include a plurality of quick plug connectors, which can be 2, 3 or 4, or even more, and the number of quick plug connectors can be determined according to the number requirement of the test object. Different quick plug connectors in the first quick plug module can be connected to different oil ports of the test object to realize oil supply and signal acquisition of different oil paths of the test object. The second quick plug module cooperates with the first quick plug module to provide complete control signals and oil supply for the test object. The third quick plug module is connected to the test object to provide oil supply and pressure control for the test object, so as to ensure that the integrated valve oil cylinder can work normally and realize various performance tests.

[0141] The performance testing device of the integrated valve oil cylinder provided by the utility model corresponds to the following test process of the test system:

[0142] The test object is installed on the bearing device of the test bench system and is fixed firmly by the clamp and the positioning device. According to the type and test requirement of the test object, the appropriate first, second and third quick plug modules are selected, and the main system, the pilot system and the combined flow system are correctly connected to the control components of the test object and the test bench system. It is checked whether the connection of each component of the system is firm, whether the oil level is normal, and whether the electrical circuit is connected.

[0143] When the no-load test is performed: start the 1# oil pump and the 2# oil pump, adjust the output pressure and flow to the no-load test set value through the control valve group of the main system and the pilot system. Operate the first control valve (electromagnetic reversing valve) to make the piston rod of the test object (such as the integrated valve oil cylinder) reciprocate, and observe whether the integrated valve oil cylinder moves smoothly and whether there is a jamming phenomenon.

[0144] When the load test is performed: after the no-load test is normal, the load test is performed. The third control valve (valve ③) and the tenth valve assembly (valve group ⑩), the eleventh valve assembly (valve group ), the first control valve (valve ①), the second control valve (valve ②) and the fourteenth control valve are operated in cooperation to make the integrated valve oil cylinder reciprocate under different load conditions, collect performance data such as pressure, flow, displacement and speed of the integrated valve oil cylinder, and analyze the working characteristics of the integrated valve oil cylinder under the load condition.

[0145] It can be understood that the performance testing device of the integrated valve oil cylinder corresponding to the test system can simulate various working conditions of the test object (such as an integrated valve oil cylinder or a balance valve) under different working scenes, can adjust the pressure, flow, flow direction and control signal of the oil through the cooperative work of the main system, the pilot system and the confluence system, can measure and evaluate multiple performance indexes of the test object at the same time, can accurately judge the overall performance of the test object, and can comprehensively test various complex situations encountered by the test object (such as an integrated valve oil cylinder or a balance valve) in actual application.

[0146] Furthermore, the performance testing system and the test object are quickly installed and detached through the connection of the plurality of first, second and third quick plug-in modules, so that the test efficiency is improved, different test objects are conveniently replaced, and diversified test tasks can be met.

[0147] In some embodiments of the utility model, the performance testing device of the integrated valve oil cylinder corresponding test system still includes loading system 50;Loading system 50 includes loading oil circuit, accompanying test loading oil cylinder and endurance test oil circuit, the oil inlet of loading oil circuit is connected with oil tank through 3# oil pump, the oil outlet of loading oil circuit is connected with the rod cavity and the rodless cavity of accompanying test loading oil cylinder respectively, and loading oil circuit is used for testing the endurance of integrated valve oil cylinder in active mode.

[0148] The oil inlet of the endurance test oil circuit is connected with the oil tank through the 3# oil pump, and the oil outlet of the endurance test oil circuit is connected with the rod cavity and the rodless cavity of the accompanying test loading oil cylinder respectively, and the endurance test oil circuit is used for testing the endurance of the integrated valve oil cylinder in passive mode.

[0149] Further, the thirteenth control valve, the rod cavity check valve and the rodless cavity check valve are arranged on the loading oil circuit;The oil inlet of the thirteenth control valve is connected with the oil outlet of the 3# oil pump, is used for oil supplementing of accompanying test loading oil cylinder, the oil outlet of the thirteenth control valve is connected with the rod cavity of accompanying test loading oil cylinder through the rod cavity check valve, the oil outlet of the thirteenth control valve is connected with the rodless cavity of accompanying test loading oil cylinder through the rodless cavity check valve, and is used for testing the endurance of integrated valve oil cylinder in active mode.

[0150] Further, the twelfth control valve is arranged on the endurance test oil circuit, the oil port of the twelfth control valve is connected on the oil circuit between the 3# oil pump and the thirteenth control valve, and the oil port of the twelfth control valve is also connected in the oil tank;The oil port of the twelfth control valve is connected on the oil circuit between each check valve and the rod cavity and the rodless cavity of the accompanying test loading oil cylinder corresponding thereto, and is used for testing the endurance of integrated valve oil cylinder in passive mode.

[0151] It can be understood that the performance testing device corresponding to the test system of the integrated valve oil cylinder provided by the embodiment of the utility model can not only simulate various working conditions of the integrated valve oil cylinder under different working scenes, comprehensively test various complex situations encountered by the integrated valve oil cylinder in actual application, and simultaneously perform durability testing, but also can perform corresponding performance testing on various valves.

[0152] It should be noted that the sensors in the performance testing device corresponding to the test system of the integrated valve oil cylinder include 1# to 6# pressure sensors, and each pressure sensor is used for detecting the pressure of each system. The pressure gauges include 1# to 3# mechanical pressure gauges, and the mechanical pressure gauges are used for displaying the pressure applied to each control valve. The flow sensors include 1# and 2# flow sensors, and the flow sensors are used for detecting the outlet flow of the 1# hydraulic pump and the 2# hydraulic pump.

[0153] The oil pumps include 1# to 3# oil pumps, wherein the 1# oil pump is used for providing adjustable low-pressure large flow for the entire system, the 2# oil pump is used for providing adjustable high-pressure small flow for the entire system (when the test valve has an opening pressure, low-pressure small flow is provided). The 3# oil pump is used for durability testing, and is used as a power source in the active durability mode and as a supplementary oil source in the passive durability mode.

[0154] Each control valve in the performance testing device corresponding to the test system of the integrated valve oil cylinder includes a first control valve to a fourteenth control valve, and each control valve is used for realizing various target testing functions.

[0155] The first control valve (valve ①) is a two-position two-way electromagnetic ball valve, and the second control valve (valve ②) is a two-position three-way electromagnetic ball valve, both of which can withstand high pressure. The first control valve and the second control valve work cooperatively, are used for controlling the cartridge valve loaded in the oil cylinder to realize the testing function, and are used for controlling the realization of the corresponding pressure maintaining function, and provide a pressure relief channel after the integrated valve oil cylinder test is completed.

[0156] The third control valve (valve ③) is a three-position four-way O-type electromagnetic valve, and the third control valve is used for controlling the integrated valve oil cylinder to perform reciprocating action.

[0157] The fourth control valve (valve ④) and the fifth control valve (valve ⑤) are two-position two-way electromagnetic ball valves, and the sixth control valve (valve ⑥) is a three-position four-way O-type electromagnetic valve. The sixth control valve is used for controlling the forward conduction function of the tested balance valve from the 2# port (valve port) to the 1# (load port). When the tested balance valve is forward conducted, the sixth control valve works in the left position. The fourth control valve and the fifth control valve are used for isolating the pressure from being transmitted to the rear end quick plug when there is leakage in the middle position of the sixth control valve.

[0158] The seventh control valve (valve ⑦) is a two-position two-way electromagnetic valve, and the seventh control valve is used for controlling the pressure establishment of the pilot relief valve of the 2# oil pump.

[0159] The eighth control valve (valve ⑧) is a three-position four-way manual reversing valve, so as to operate in manual mode. When the test system needs to realize automatic control function, the three-position four-way manual reversing valve can be replaced by an electromagnetic reversing valve, so as to establish the 1# load port load pressure of the balance valve of the 1# to 4# test objects.

[0160] The ninth control valve (valve ⑨) is a two-position two-way electromagnetic valve, which is used to control the pressure of the pilot relief valve of the 1# oil pump.

[0161] The tenth valve assembly (valve group ⑩) and the eleventh valve assembly are both combined valves, and the tenth valve assembly and the eleventh valve assembly are respectively composed of two three-position four-way electromagnetic ball valves connected in parallel and a check valve connected in series. The purpose of connecting the two three-position four-way electromagnetic ball valves in parallel is to realize greater flow capacity, so as to improve the oil flow capacity of the oil circuit and realize the expected target function.

[0162] The twelfth control valve (valve ) is a three-position four-way electromagnetic valve, which is used to control the durability of the integrated valve cylinder in passive mode. The passive mode is that the load cylinder of the test object is used as the active cylinder, and the test force is applied to the test object to realize the durability test.

[0163] The thirteenth control valve (valve ) is a two-position two-way electromagnetic ball valve, which is used to control the durability of the integrated valve cylinder in active mode. The active mode is that the test object is used as the active cylinder, and the durability test is realized by active reciprocation. At this time, the 3# pump is only used to supplement the non-loading chamber of the load cylinder of the test object.

[0164] The fourteenth control valve is a two-position three-way electromagnetic ball valve, which is used for unloading after the test is completed.

[0165] The performance test device of the integrated valve cylinder also includes 1# to 3# throttle valves corresponding to the control valves in the test system. The 1# throttle valve is used to adjust the output flow of the branch of the 1# oil pump; the 2# throttle valve is used to adjust the output flow of the branch of the 2# oil pump; and the 3# throttle valve is used to adjust the flow of the oil return filter, so as to protect the cooler.

[0166] The performance test device of the integrated valve cylinder also includes 1# to 5# relief valves corresponding to the control valves in the test system. The 1# relief valve is used to adjust the thrust in the passive durability test mode; the 2# relief valve is used to adjust the pull force in the passive durability mode; and the 3# relief valve is used to adjust the oil supplement pressure in the passive mode and the system pressure in the active mode.

[0167] Table 1 is a table of actions of each valve corresponding to the performance test of different test objects in the test system of the performance test device of the integrated valve cylinder.

[0168]

[0169] As shown in Table 1, the performance testing device of the integrated valve cylinder has two control modes of manual control and automatic control corresponding to the testing system. During testing, the hydraulic pump is started, the overflow valve and the throttle valve are adjusted to set the pressure and flow of the corresponding oil circuit, then the corresponding test item is selected according to the test object in the man-machine interface (touch screen), the performance testing system drives each electromagnetic valve to work in the preset state to realize multiple target function tests.

[0170] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An integrated valve ram performance testing apparatus, characterized by, The utility model relates to a test workbench, including: a workbench face is formed in the upper surface of the test workbench, and an oil collecting assembly and a test tool are arranged on the workbench face, the test tool is suitable for clamping a test object, and the oil collecting assembly is used for collecting oil during testing; an operation table is arranged on one side of the workbench face, and a touch screen, operation buttons, an instrument panel and a quick plug module are arranged on the operation table, the touch screen is used for human-computer interaction, the operation buttons are used for controlling a corresponding test system, the instrument panel is used for displaying corresponding test data, and the quick plug module is used for being connected with each oil port of the test object; a power installation table is selectively connected with the test workbench, the power installation table comprises an oil tank and an oil pump, the oil pump is arranged on one side of the oil tank, and the oil tank is used for supplying oil to the test object; and the oil tank is also connected with the oil collecting assembly. The oil collecting assembly comprises:

2. The integrated valve ram performance test apparatus of claim 1, wherein, first and second baffles arranged on both sides of the workbench face respectively; a third baffle arranged on one side of the workbench face and connected with the first and second baffles respectively; wherein the side wall of the operation table, the first baffle, the second baffle and the third baffle enclose an oil collecting groove, a bottom wall of the oil collecting groove is provided with an oil collecting port, the oil collecting port is in communication with the oil tank, and is used for recycling oil leaked into the oil collecting groove to the oil tank. At least one of the first and second baffles is provided with a positioning groove for positioning the test object.

3. The integrated valve ram performance test apparatus of claim 2, wherein, The test workbench is internally provided with:

4. The integrated valve ram performance test apparatus of claim 1, wherein, first and second partitions arranged perpendicularly to each other to divide the interior of the test workbench into an electrical installation area, a tool storage area and a valve block installation area, the electrical installation area is used for installing electrical elements, the tool storage area is used for placing operating tools, and the valve block installation area is used for installing corresponding test valves. The quick plug module comprises:

5. The integrated valve ram performance test device of claim 1, wherein, male connectors arranged on the side wall of the operation table and located on one side of the operation table; female connectors connected with the male connectors and arranged in one-to-one correspondence with the male connectors, the female connectors being arranged on the other side of the operation table opposite to the one side; wherein one of the male connectors and the female connectors is connected with a corresponding test system, and the other of the male connectors and the female connectors is connected with a corresponding oil port of the test object. Further comprising:

6. The integrated valve ram performance test apparatus of any one of claims 1 to 5, wherein, a pressure sensor arranged on a corresponding hydraulic oil circuit of the test workbench for detecting the pressure of the corresponding hydraulic oil circuit; a flow sensor arranged at the outlet of the oil pump for detecting the outlet flow of the corresponding oil pump. Further comprising:

7. The integrated valve ram performance test apparatus of any one of claims 1 to 5, wherein, a radiator arranged on one side of the test workbench for radiating corresponding components of the test workbench. The test workbench and the power installation table are detachably connected.

8. The integrated valve ram performance test apparatus of any one of claims 1 to 5, wherein, Universal wheels are arranged below the test workbench and the power installation table.

9. The integrated valve ram performance test apparatus of any one of claims 1 to 5, wherein, ​

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