Proportional valve comprehensive test system

Abstract

The utility model relates to a proportional valve comprehensive test system, and relates to the field of hydraulic system test equipment. The device comprises a support and a test board which are fixedly connected, an oil tank is arranged in the support, and the support is of an open structure; a test valve block used for being connected with a proportional valve to be tested is arranged on the test board, a plurality of oil ports are formed in the test valve block and communicated with the oil tank through a connecting pipeline, a plurality of manual control valves are arranged on the connecting pipeline, and a mixing valve block is further arranged on the side, close to the oil tank, of the test board. According to the invention, the device can be conveniently adjusted and maintained in the test process of the proportional valve; moreover, the mixing valve block is mounted on one side, close to the oil tank, of the test board, so that a narrow space between the test board and the oil tank can be efficiently utilized to arrange and connect the oil pipe, the structure is firm and stable, and the maintainability is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydraulic system test equipment, in particular to a proportional valve comprehensive test system. BACKGROUND

[0002] The proportional valve comprehensive test system is widely used in the design and testing of hydraulic systems, especially in the fields of industrial automation and precision manufacturing. This kind of device can simulate the performance of hydraulic systems under various working conditions, helping engineers evaluate and optimize the working characteristics of proportional valves. By accurately measuring parameters such as flow rate, pressure, and response time of proportional valves, the reliability and efficiency of hydraulic systems can be effectively improved. With the continuous progress of industrial technology, the requirements for proportional valve performance are becoming higher and higher, so it is particularly important to develop an efficient and accurate proportional valve comprehensive test system.

[0003] Currently, in the field of proportional valve testing, common solutions include using a test platform with a closed frame structure. Although this structure can provide good rigid support, due to its closed design, it is difficult for operators to conveniently adjust and maintain the equipment. CONTENT OF THE INVENTION

[0004] In order to facilitate equipment adjustment and maintenance during proportional valve testing, the present application provides a proportional valve comprehensive test system.

[0005] The proportional valve comprehensive test system provided by the present application adopts the following technical solution:

[0006] A proportional valve comprehensive test system, comprising a support and a test bench fixedly connected, an oil tank is arranged in the support, and the support is arranged as an open structure; a test valve block for connecting a proportional valve to be tested is arranged on the test bench, a plurality of oil ports are arranged on the test valve block, the plurality of oil ports are communicated with the oil tank through connecting pipelines, and a plurality of manual control valves are arranged on the connecting pipelines.

[0007] By adopting the above technical solution, the open structure of the support allows workers to easily access the manual control valves and other components, facilitating operation, inspection, and maintenance work, thereby reducing time consumption during experiments and maintenance and improving work efficiency.

[0008] As a preferred, a mixing valve block is arranged on the side of the test bench close to the oil tank, an electromagnetic reversing valve is installed on the mixing valve block, and the electromagnetic reversing valve is communicated with the plurality of connecting pipelines.

[0009] By adopting the technical scheme, the electromagnetic reversing valve is arranged, on one hand, the oil circuit cooling circulation can be uninterrupted during the proportional valve test stop, and the oil cooling effect is enhanced; on the other hand, when the electromagnetic reversing valve is powered off, the pressure of the proportional valve oil port can be completely released, so that the oil splashing when the proportional valve is disassembled can be prevented to a certain extent; and the mixed valve block is arranged on the test bench close to the oil tank, so that the narrow space between the test bench and the oil tank can be efficiently utilized to arrange the connecting pipes, the structure is firm and stable, and the maintainability is high.

[0010] Preferably, a plurality of pressure sensors are further arranged on the mixed valve block, and sensing ends of the pressure sensors are respectively communicated with the plurality of connecting pipes.

[0011] By adopting the technical scheme, the pressure inside the connecting pipe can be monitored through the pressure sensor.

[0012] Preferably, a panel is further arranged on the test bench, and a plurality of pressure display tables are arranged on the panel.

[0013] By adopting the technical scheme, the pressure data collected by the pressure sensor can be displayed through the plurality of pressure display tables, so that the operator can read in real time.

[0014] Preferably, the test valve block is detachably arranged on the test bench.

[0015] By adopting the technical scheme, the operator can install the test valve block suitable for proportional valves of different specifications on the test bench, so that the application range of the device can be expanded.

[0016] Preferably, an oil receiving groove is arranged around the test valve block on the test bench, an oil receiving pipe is communicated with the oil tank, and the oil receiving pipe is communicated with the oil receiving groove.

[0017] By adopting the technical scheme, when the proportional valve is replaced, the excess oil can be collected in the oil receiving groove and then delivered to the oil tank through the oil receiving pipe, so that the oil can be recycled while keeping the bench top clean as much as possible.

[0018] Preferably, an anti-fouling filter is arranged on the oil receiving pipe.

[0019] By adopting the technical scheme, the cleanliness of the oil recycled on the bench top can be improved through the anti-fouling filter.

[0020] Preferably, a radiator is arranged in the bracket, and the radiator is arranged close to the connecting pipe.

[0021] By adopting the technical scheme, the radiator is arranged to help maintain the stability of the oil temperature, reduce the system pressure and flow fluctuation caused by temperature fluctuation, and improve the stability and reliability of the entire proportional valve comprehensive test system.

[0022] As preferred, the test bench is arranged as a steel plate with a thickness of 10 mm.

[0023] By adopting the technical scheme, the device stability during the proportional valve test experiment can be improved by using the steel plate with a certain thickness.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. Through the support with an open structure, the staff can easily operate the manual control valve to realize accurate control of the proportional valve flow and flexible switching of the oil circuit, and the convenience and efficiency of the test are improved;

[0026] 2. The steel plate with a thickness of 10 mm is used as the test bench to improve the stability and reliability during the test, and avoid test errors caused by the shaking of the test bench;

[0027] 3. By arranging the oil receiving groove and the oil receiving pipe, when the proportional valve is replaced, the excess oil can be collected into the oil receiving groove and then delivered to the oil tank through the oil receiving pipe, so that the oil recovery and utilization can be achieved while keeping the table surface as clean as possible. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0029] Figure 2 is a schematic diagram of the structure inside the support in the embodiment of the present application;

[0030] Figure 3 is a schematic diagram of the structure of another angle of the embodiment of the present application.

[0031] Reference signs: 100, proportional valve; 1, test bench; 2, support; 3, test valve block; 4, oil tank; 5, connecting pipeline; 6, radiator; 7, mixing valve block; 8, electromagnetic reversing valve; 9, pressure sensor; 10, pressure reducing valve; 11, overflow valve; 12, interface; 13, oil receiving groove; 14, oil receiving pipe; 15, static flow divider; 16, anti-fouling filter; 17, panel; 18, pressure display meter; 19, indicator light; 20, operation button; 21, manual control valve; 22, control valve block. DETAILED DESCRIPTION

[0032] The following will be described in detail in combination with the accompanying Figures 1-3 The present application will be further described in detail.

[0033] The embodiment of the application discloses a proportional valve comprehensive test system.

[0034] Referring to Figure 1 , Figure 2 and Figure 3 , the proportional valve comprehensive test system comprises a fixedly connected support 2 and a test table 1, the support 2 is arranged at the bottom of the test table 1, and the support 2 is of an open structure. A test valve block 3 is detachably arranged on the top of the test table 1, and a proportional valve 100 to be tested is detachably arranged on the test valve block 3. An oil tank 4 is arranged in the support 2, and the test valve block 3 is provided with a plurality of connecting oil ports, and a plurality of communication pipelines and a plurality of manual control valves 21 arranged on the communication pipelines are arranged between the plurality of oil ports and the oil tank 4. Through the open support 2, the worker can easily operate the manual control valve 21, so as to realize the control of the flow of the proportional valve 100, the switching of the communication pipeline and the maintenance, and the comprehensive experiment of the proportional valve 100 can be realized more simply and conveniently.

[0035] The support 2 is in the form of a cuboid frame, the test table 1 is in the form of a rectangular plate, and the test table 1 is fixedly connected to the upper surface of the support 2 away from the ground. In the embodiment, the test table 1 is arranged as a steel plate with a thickness of 10 mm, has higher stability, and can avoid the influence of the shaking of the test table 1 on the experiment of the proportional valve 100 in the test process. The test valve block 3 can be detachably arranged on the test table 1 through a bolt fastener, so as to facilitate the cleaning of the test valve block 3 and the table top of the test table 1 after the test of the proportional valve 100. In addition, a plurality of test valve blocks 3 suitable for proportional valves 100 of different specifications can be placed on the table top of the test table 1, and the corresponding test valve blocks 3 can be replaced for proportional valves 100 of different specifications, so that the worker can conveniently detect proportional valves 100 of different specifications.

[0036] The oil tank 4 is in the form of a cuboid, the length direction of the oil tank 4 is parallel to the length direction of the support 2, and the oil tank 4 is used for storing and supplying oil required by the test proportional valve 100. A radiator 6 is further arranged in the support 2 close to the oil tank 4, and the radiator 6 is arranged at one end of the length direction of the oil tank 4. Part of the connecting pipeline 5 is arranged close to the radiator 6, so that the radiator 6 can play a role in cooling the oil in the connecting pipeline 5. Preferably, the part of the connecting pipeline 5 close to the radiator 6 is designed in the form of a spiral disc, so as to improve the heat dissipation efficiency.

[0037] The test bench 1 is provided with a mixing valve block 7 near the bottom of the oil tank 4, and the oil ports of the test valve are communicated with the oil tank 4 through the mixing valve block 7 and the connecting pipeline 5 in turn. The electromagnetic reversing valve 8 is installed on the mixing valve block 7, and the electromagnetic reversing valve 8 and part of the manual control valve 21 are installed on the mixing valve block 7. The working oil port of the electromagnetic reversing valve 8 can be communicated with the oil port of the proportional valve 100 through the connecting valve block, and the oil inlet and oil return port of the electromagnetic reversing valve 8 are communicated with the oil tank 4 through the oil channel. By setting the electromagnetic reversing valve 8, on the one hand, the oil circuit cooling cycle can be uninterrupted during the test stop of the proportional valve 100, and the oil cooling effect is enhanced; on the other hand, when the electromagnetic reversing valve 8 is de-energized, the pressure of the oil port of the proportional valve 100 can be completely released, thereby preventing oil splashing when the proportional valve 100 is disassembled to some extent.

[0038] The mixing valve block 7 is also provided with a pressure reducing valve 10, an overflow valve 11 and an interface 12 for connecting a pressure gauge. The pressure reducing valve 10 can be used to adjust the pressure in the connecting pipeline 5, and the overflow valve 11 can be used to adjust the flow of the system. A plurality of pressure sensors 9 are installed on the mixing valve block 7, and the sensing ends of the plurality of pressure sensors 9 are arranged in the connecting pipeline 5 between each oil port of the test valve block 3 and the oil tank 4, so that the oil pressure in each oil port pipeline can be monitored. The interface 12 is communicated with part of the connecting pipeline 5, so that the staff can detect the pressure in this part of the connecting pipeline when needed.

[0039] Preferably, the top of the test bench 1 provided with the test valve block 3 is also provided with a panel 17, and the panel 17 is arranged on the length direction side of the test bench 1 away from the operator. The panel 17 is provided with a plurality of pressure display tables 18, and the pressure display tables 18 are used to display the data collected by the pressure sensors 9, so that the relevant personnel can master the test situation and the working condition of the experimental device in time, and when the experimental device is in an abnormal state, the cause of the abnormality can be known in time through the abnormal pressure data. In addition, the panel 17 is also provided with a plurality of operation buttons 20 and indicator lights 19, and the operation buttons 20 can be used to start and end the experiment. The plurality of indicator lights 19 can be set to different colors, and the different colors of the indicator lights 19 can indicate the running condition of the current device, such as the green indicator light 19 being always on when the device is working normally, and the red indicator light 19 being on to remind the operator to pay attention to the abnormal state of the current device when an abnormal condition occurs.

[0040] The control valve block 22 is further arranged on the bracket 2 and is arranged on the back side of the panel 17 away from the operator. The control valve block 22 is in communication with the plurality of connecting pipes 5, and the partial manual control valve 21 is arranged on the control valve block 22. The control valve block 22 is arranged on the side of the bracket 2 close to the radiator 6, so that the relevant personnel can conveniently operate the manual control valve 21 through the open bracket 2. In addition, the motor, gear pump, high-pressure filter, electrical components and partial connecting pipes required by the device are arranged on the back side of the bracket 2. The components are concentrated on the back side of the bracket 2, which can save space and make the whole device more compact.

[0041] On this basis, the test bench 1 is provided with an oil receiving groove 13 around the test valve block 3, and the oil receiving groove 13 is in communication with the mixing valve block 7. The mixing valve block 7 is further provided with an oil receiving pipe 14 in communication with the oil receiving groove 13, and the oil receiving pipe 14 is communicated to the oil tank 4 away from the mixing valve block 7. When the proportional valve 100 is replaced, the excess oil can be collected into the oil receiving groove 13 and then delivered to the oil tank 4 through the oil receiving pipe 14, so that the purpose of recycling the oil can be achieved while keeping the table top as clean as possible. Preferably, the oil receiving pipe 14 is further provided with a static flow divider 15 and an anti-fouling filter 16, and the oil receiving pipe 14 is communicated to the oil tank 4 through the static flow divider 15 and the anti-fouling filter 16 in sequence. The large particles can be deposited at the bottom of the static flow divider 15, and the oil in the upper layer of the static flow divider 15 can be filtered by the anti-fouling filter 16 and then delivered to the oil tank 4, so as to ensure the cleanliness of the recycled oil.

[0042] The implementation principle of the proportional valve comprehensive test system according to the embodiment of the application is that: the open bracket 2 and the detachable test valve block 3 are arranged, so that the internal manual control valve 21 can be conveniently operated, and the device can be conveniently maintained. The device is further provided with the electromagnetic reversing valve 8 to realize oil circuit cooling circulation and pressure release, and the pressure reducing valve 10, the overflow valve 11 and the pressure sensor 9 are used for oil pressure adjustment and detection. In addition, the oil receiving groove 13 and the oil receiving pipe 14 are arranged, so that the oil on the table top can be cleaned and effectively recycled during the experiment.

[0043] The above are the preferred embodiments of the application, which do not limit the protection scope of the application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the application should be covered by the protection scope of the application.

Claims

1. A comprehensive test system for proportional valves, characterized by: The invention comprises a fixedly connected bracket (2) and a test bench (1), wherein an oil tank (4) is provided in the bracket (2), and the bracket (2) is configured as an open structure; a test valve block (3) for connecting a proportional valve (100) to be tested is provided on the test bench (1), and a plurality of oil ports are provided on the test valve block (3), and the plurality of oil ports are connected to the oil tank (4) via a connecting pipe (5), and a plurality of manual control valves (21) are provided on the connecting pipe (5).

2. A proportional valve comprehensive test system according to claim 1, characterized in that: A mixing valve block (7) is provided on one side of the test bench (1) close to the oil tank (4), an electromagnetic reversing valve (8) is installed on the mixing valve block (7), and the electromagnetic reversing valve (8) is connected to the plurality of connecting pipes (5).

3. A proportional valve comprehensive test system according to claim 2, characterized in that: A plurality of pressure sensors (9) are also provided on the mixing valve block (7), and the sensing ends of the pressure sensors (9) are respectively connected to the plurality of connecting pipes (5).

4. A proportional valve comprehensive test system according to claim 3, characterized in that: The test bench (1) is further provided with a panel (17), and a plurality of pressure display gauges (18) are provided on the panel (17).

5. A proportional valve comprehensive test system according to claim 1, characterized in that: The test valve block (3) is detachably mounted on the test bench (1).

6. A proportional valve comprehensive test system according to claim 1, characterized in that: An oil receiving groove (13) is provided on the test bench (1) around the test valve block (3), an oil receiving pipe (14) is connected to the oil tank (4), and the oil receiving pipe (14) is in communication with the oil receiving groove (13).

7. A proportional valve comprehensive test system according to claim 6, characterized in that: An anti-fouling filter (16) is provided on the oil receiving pipe (14).

8. A proportional valve comprehensive test system according to claim 1, characterized in that: A radiator (6) is provided in the bracket (2), and the radiator (6) is provided close to the connecting pipe (5).

9. A proportional valve comprehensive test system according to claim 1, characterized in that: The test bench (1) is configured as a steel plate with a thickness of 10 mm.

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