Hydraulic experiment control system

Abstract

The utility model discloses a hydraulic experiment control system, which belongs to the technical field of hydraulic experiments and comprises a suitcase type shell, an IO (input / output) control module and a data acquisition module are fixedly connected to the inner wall of the suitcase type shell, and the system can be connected with the IO control module and the data acquisition module by adopting a CAN (controller area network) communication protocol. A control wire harness is connected with an electromagnetic valve and a sensor through a connector, so that an IO control module controls opening and closing of a valve element to drive execution of an oil cylinder, the sensor stores pressure, flow, temperature and other data needing to be monitored in a memory card of a data acquisition module in a bus mode, the data in the memory card is taken out after a test is finished, and the data are stored in a data storage module. The performance and the effect of the hydraulic system are analyzed through modes such as data curve playback, real-time recording of data, rapid switching control of the hydraulic valve and matched building of various test environments can be achieved, and the operation performance of equipment is accurately mastered.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic experiments, and more specifically to a hydraulic experiment control system. Background Art

[0002] Hydraulic test refers to a pressure test conducted on pressure vessels using liquid media. Its purpose is to comprehensively evaluate the strength and quality of the vessels. Generally, the test pressure is 1.25 times the design pressure (the maximum working pressure can be taken for pressure vessels in use). When steel vessels with wall temperatures >200°C and non-ferrous metal vessels with wall temperatures >150°C are subjected to hydraulic tests at room temperature, the factor of decreased strength after temperature increase should be considered. Therefore, the test pressure should be appropriately increased, that is, it should be multiplied by a coefficient, which is (the allowable stress at the test temperature divided by the allowable stress at the design or use temperature). The overall membrane stress of the vessel under the hydraulic test shall not exceed 0.9 of the yield point at the test temperature.

[0003] With the increasing demand for mechanical engineering equipment and special vehicles with various functions, the demand for design and testing of equipment powered by hydraulics is also increasing. Traditionally, performance verification tests on equipment are performed by manually operating button switches and visually observing pressure flow meters, and manually recording and then analyzing the performance characteristics of the equipment. This leads to serious insufficiency in test efficiency and the amount of collected data. In order to solve this problem, a lightweight and convenient hydraulic test system is designed to achieve convenient control of the system, real-time data collection and accurate control of equipment operating performance. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a hydraulic experimental control system, which solves the problem that the performance verification test of the equipment in the prior art is carried out by manually operating button switches and visually observing the pressure flow meter, and manually recording and then analyzing the performance characteristics of the equipment, which leads to serious lack of test efficiency and the amount of collected data.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A hydraulic experiment control system comprises a suitcase-type shell, an inner wall of which is fixedly connected an IO control module and a data acquisition module, the IO control module and the data acquisition module are electrically connected, a plurality of control harnesses are arranged at a port of the IO control module, a connector is fixedly connected to one end of the plurality of control harnesses away from the IO control module, and a memory card is arranged in the data acquisition module.

[0009] Furthermore, a plurality of the control harnesses form a strand, and a cable tie is wound around the outer surface of the strand.

[0010] Furthermore, a flexible extrusion layer is embedded in the inner wall of the suitcase-type shell, and the flexible extrusion layer is made of sponge material.

[0011] Furthermore, the length, width and height of the suitcase-type housing are 365mm*269mm*138mm.

[0012] Furthermore, a download debugging line is also provided at the port of the IO control module.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] This system uses the CAN communication protocol to connect the IO control module and the data acquisition module, and connects the control harness to the solenoid valve and sensor through the connector, so that the IO control module controls the opening and closing of the valve core to drive the execution of the cylinder. The sensor saves the pressure, flow, temperature and other data that need to be monitored in the form of a bus in the memory card of the data acquisition module. After the test is completed, the data on the memory card is taken out, and the performance and effect of the hydraulic system are analyzed by data curve playback, etc., which can realize real-time recording of data, rapid switching control of hydraulic valves, and matching and setting up of various test environments, so as to accurately control the operating performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of a partially cutaway suitcase-type housing of the utility model;

[0018] Figure 3 This is a system flow chart of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Suitcase-type shell; 11. Flexible extrusion layer; 2. IO control module; 3. Data acquisition module; 31. Memory card; 4. Control harness; 5. Connector; 6. Download and debug line. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] Example

[0023] like Figure 1-3 As shown, a hydraulic experiment control system includes a suitcase-type shell 1, an inner wall of the suitcase-type shell 1 is fixedly connected with an IO control module 2 and a data acquisition module 3, the IO control module 2 and the data acquisition module 3 are electrically connected, a plurality of control harnesses 4 are arranged at the port of the IO control module 2, a connector 5 is fixedly connected to one end of the plurality of control harnesses 4 away from the IO control module 2, and a memory card 31 is arranged in the data acquisition module 3.

[0024] This system uses the CAN communication protocol to connect the IO control module 2 and the data acquisition module 3, and connects the control harness 4 to the solenoid valve and the sensor through the connector 5, so that the IO control module 2 controls the opening and closing of the valve core to drive the execution of the cylinder. The sensor saves the pressure, flow, temperature and other data that need to be monitored in the form of a bus in the memory card 31 of the data acquisition module 3. After the test is completed, the data of the memory card 31 is taken out, and the performance and effect of the hydraulic system are analyzed by means of data curve playback, etc., which can realize real-time recording of data, rapid switching control of hydraulic valves and matching and setting up of various test environments, and accurately control the operating performance of the equipment.

[0025] like Figure 1-2 As shown, several control harnesses 4 form one strand, and a cable tie 41 is wound around the outer surface of one strand of control harness 4 .

[0026] When in use, the scattered control harnesses 4 are wound into one strand by the cable tie 41 to prevent several control harnesses 4 from getting tangled and affecting the use of the device.

[0027] like Figure 1-2 As shown, a flexible extrusion layer 11 is embedded in the inner wall of the suitcase-type shell 1, and the flexible extrusion layer 11 is made of sponge material.

[0028] When the suitcase-type shell 1 is closed, the flexible extrusion layer 11 will squeeze the control harness 4, thereby limiting the control harness 4 to prevent the control harness 4 from moving and colliding inside the suitcase-type shell 1 when being carried, thereby preventing damage to components.

[0029] like Figure 1 As shown, the length, width and height of the suitcase-type housing 1 are 365 mm*269 mm*138 mm.

[0030] When in use, the suitcase-type housing 1 of this specification is convenient for people to carry.

[0031] like Figure 1 As shown, a download debugging line 6 is also provided at the port of the IO control module 2 .

[0032] When in use, the computer is connected via the download debugging line 6, so that personnel can debug the system conveniently.

[0033] In summary, the specific working process of this solution is as follows: this system uses the CAN communication protocol to connect the IO control module 2 and the data acquisition module 3, and connects the control harness 4 to the solenoid valve and the sensor through the connector 5, so that the IO control module 2 controls the opening and closing of the valve core to drive the execution of the cylinder. The sensor saves the pressure, flow, temperature and other data that need to be monitored in the form of a bus in the memory card 31 of the data acquisition module 3. After the test is completed, the data on the memory card 31 is taken out, and the performance and effect of the hydraulic system are analyzed by data curve playback and other methods. It can realize real-time recording of data, rapid switching control of hydraulic valves, and matching and setting up of various test environments, so as to accurately control the operating performance of the equipment.

[0034] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A hydraulic test control system, comprising a suitcase-type housing (1), characterized in that: An IO control module (2) and a data acquisition module (3) are fixedly connected to the inner wall of the suitcase-type housing (1); the IO control module (2) and the data acquisition module (3) are electrically connected; a plurality of control harnesses (4) are arranged at the port of the IO control module (2); a connector (5) is fixedly connected to one end of the plurality of control harnesses (4) away from the IO control module (2); and a memory card (31) is arranged in the data acquisition module (3).

2. A hydraulic test control system according to claim 1, characterized in that: A plurality of the control wire harnesses (4) form a strand, and a cable tie (41) is wound around the outer surface of the strand of the control wire harness (4).

3. A hydraulic test control system according to claim 1, characterized in that: A flexible extrusion layer (11) is embedded in the inner wall of the suitcase-type shell (1), and the flexible extrusion layer (11) is made of sponge material.

4. A hydraulic test control system according to claim 1, characterized in that: The length, width and height of the suitcase-type housing (1) are 365 mm*269 mm*138 mm.

5. A hydraulic test control system according to claim 1, characterized in that: A download debugging line (6) is also provided at the port of the IO control module (2).

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