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YD-A Industrial Hydraulic Transmission Comprehensive Experimental Platform

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The YD-A type quick insertion combination hydraulic transmission experimental platform is designed based on modern teaching characteristics and the latest requirements of the hydraulic transmission curriculum teaching outline. It adopts advanced Rexroth technology hydraulic components and unique modularity, forming a convenient system combination that meets the experimental teaching requirements of hydraulic transmission tutorials for students in higher education institutions, secondary professional schools, and vocational and technical schools; The goal is to cultivate students' hands-on, design, and comprehensive application abilities, and to enhance and strengthen their innovative design abilities.
1、 Main features:
1. The system adopts standard industrial hydraulic components, which are safe and reliable to use and close to industrialization.
2. Fast and reliable connection method, special sealing interface, ensuring convenient and fast experimental assembly, no oil leakage during disassembly, and clean.
3. Accurate measuring instruments, convenient measurement methods, simple to use, and precise and reliable measurements.
4. Using programmable logic controllers (PLCs) to communicate with microcomputers, achieving electrical automation control, online programmable monitoring, and fault detection.
5. Add configuration simulation software to enhance functionality.
6. Add hydraulic simulation software, virtual software circuit overlap and fault detection functions.
2、 Composition of the experimental platform:
① Experimental workbench
Working power supply: three-phase four wire 380V, rated power: 1.5KW, rated pressure: 6.3-7Mpa
The experimental workbench is composed of an iron body, an electrical cabinet, an oil pipe rack, and an aluminum alloy panel (T-shaped hook groove). Made of high-quality cold-rolled steel plate material with a thickness of 2mm from Baosteel; Beautiful and sturdy, equipped with four high-quality shaft type universal wheels at the bottom, easy to move. The bottom of the cabinet is divided into two parts, with the left side used to place the pump station; On the right is a storage cabinet, used to store hydraulic components.
Workbench
Main size: Long × wide × Height=1500mm × 650mm × 1760mm (approximately 260kg after packaging)
Optional attachment: long × wide × Height=600mm × 650mm (computer comes with approximately 20kg)
Standard fault setting diagnosis training function
Attachment size: 650 × six hundred and fifty × 1500mm
② Hydraulic pump station
Rated working pressure of the system: 6.3Mpa. (Up to 7Mpa maximum)
⑴ Motor pump device (1 unit)
Variable vane pump -1 motor:
Variable vane pump: unidirectional, nominal displacement 6.67mL/r, volumetric efficiency 90%;
Motor: three-phase AC voltage, power 1.5KW, speed 1450r/min;
⑵ Fuel tank: nominal volume 40L; Equipped with liquid level and oil temperature indicators, oil suction filter, air filter, plugs, etc
③ Common hydraulic components
Mainly based on the famous hydraulic brand Beijing Huade components, it works stably and has reliable performance. Please refer to the configuration list for details.
Each hydraulic component is equipped with an oil transition bottom plate, which allows for easy and flexible placement of hydraulic components on aluminum alloy panels.
④ Electrical measurement and control unit
Programmable Logic Controller (PLC): Siemens latest S7-200 SMART SR20, I/O 20 points, relay output form; (Customers can choose PLCs with different brand configurations according to their own needs)
Power supply voltage: AC 220V/50Hz, control voltage is DC24V, equipped with manual, automatic, sequential and other control functions
3、 Hydraulic Training Program:
1） Hydraulic transmission basic circuit experiment:
1. Single stage voltage regulation circuit
2. Two stage voltage regulation circuit
3. Pressure reducing circuit of pressure reducing valve
4. Balance circuit of sequence valve
5. Unloading circuit of directional valve
6. Unloading circuit of pilot operated relief valve
7. Pressure maintaining and self-locking circuit of hydraulic control one-way valve
8. Sequential action circuit controlled by pressure relay
9. Speed switching circuit for short circuiting of speed control valve
10. Throttling valve oil inlet throttling speed control circuit
11. Throttling valve return oil throttling speed control circuit
12. Throttling valve bypass throttling speed control circuit
13. Speed control valve oil inlet throttle speed control circuit
14. Speed control valve return oil throttle speed control circuit
15. Speed control valve bypass throttling speed control circuit
16. Unidirectional synchronous circuit controlled by throttle valve
17. Two position four way electromagnetic directional valve reversing circuit
18. Three position four-way electromagnetic directional valve reversing circuit
19. Two position four-way manual directional valve reversing circuit
20. Sequential valve control sequence action circuit
21. Sequential action circuit controlled by proximity switch
2） Programmable Logic Controller (PLC) electrical control experiment, mechatronic and hydraulic integrated control experimental form.
1. Learning PLC instruction programming and ladder diagram programming
2. Learning and Using PLC Programming Software
3. Communication between PLC and computer, online debugging and monitoring
4. Optimization of PLC for Hydraulic Transmission Control
3） Equipped with excavator simulation mechanism (optional) (provide on-site operation video of hydraulic excavator simulation mechanism)
1) Observation, disassembly and assembly of various components in hydraulic transmission, and learning and analysis of hydraulic control system principles.
2) Hydraulic excavator demonstration control experiment.
① Excavation operations, bucket and stick composite work experiments;
② The position and height of the boom can be adjusted simultaneously for unloading operations, bucket operation, and bucket operation.
4） Equipped with loader simulation mechanism (optional) (on-site video of hydraulic loader simulation mechanism operation provided)
1) Observation, disassembly and assembly of various components in hydraulic transmission, and learning and analysis of hydraulic control system principles.
2) Hydraulic loading machinery demonstration control experiment.
① Loading operation, after the bucket is loaded, the rocker arm cylinder extends to reverse the bucket and lift the boom;
② Unloading operation, bucket unloading (rocker arm retracted, causing bucket to turn), boom lowering.
5） Add configuration simulation software to enhance functionality
6） Add hydraulic simulation software, virtual software circuit overlap and fault detection functions.