FT Hydraulic Loading Machinery Training Experiment Bench
Loading machinery training platform
Hydraulic loader is the main machinery in mechanical engineering. It is widely used in earth and stone constructions such as engineering buildings, road construction, hydraulic engineering, national defense, and mine loading operations. As a walking machine, the loader is widely used in loading, lifting and transportation of earthmoving, stone, loose cargo and piles of cargo. The loader also has the ability of light excavation. In recent years, the application of high-tech microelectronics technology in hydraulic technology has made the comprehensive technical level of construction machinery and construction machinery higher and higher, which has improved the reliability, operational safety, comfort and service life of these machinery, and its adaptability is more Strong.
I. Experimental items
1. Observation and disassembly experiments of the components and working principles of hydraulic transmission components.
2. Demonstration control experiment of hydraulic loading machinery.
3. PLC software simulation demonstration and control experiment.
4. Electrical control experiment of programmable logic controller (PLC): machine-electric-hydraulic integrated control experiment.
1. Demonstration control experiment of hydraulic loading machinery
1) Loading operation, after the bucket is loaded, the swing arm cylinder is extended to reverse the bucket and lift the boom;
2) The unloading operation, the bucket unloads (the rocker is retracted and the bucket is turned), and the boom is lowered.
2. Programmable controller (PLC) electrical control experiment: machine-electric-hydraulic integrated control experiment.
1) PLC instruction programming and ladder programming learning;
2) Study and use of PLC programming software;
3) PLC and computer communication, online debugging;
4) Application of PLC in hydraulic transmission control and optimization of control scheme.
Performance and characteristics
1. The test bench is made of cold-rolled steel plate (with plastic spraying and anti-corrosion treatment), with a bench-top structure and integrated control operation.
2. The electrical operation control is under-mounted, and the hydraulic station is placed in the main cabinet of the hydraulic platform. The overall structure is compact, well-coordinated, the layout is beautiful and generous, and the practicability is strong, which can be used for experiments for 4-6 people.
3. The full metal structure of the loading machine is reduced according to the actual proportion. When the experiment is started, the hydraulic system is started to operate the machine according to the experimental requirements.
4. The loading machinery is made according to the physical structure and reduced scale, which can truly reflect the actual working conditions of the machinery, so that students can deeply understand the structure and working principle of each part of its mechanism in the experiment.
5. Experimental control adopts two methods of manual control and automatic control.
6, the experimental parts use pressure-resistant rubber hose, the pressure can reach 25Mpa.
7. With three-phase leakage protection and output voltage of 380V / 220V, the power is cut off when the leakage current to the ground exceeds 30mA; the electrical control uses a DC 24V power supply with overvoltage protection to prevent damage to the equipment due to misoperation.
4. Main technical parameters <br /> Motor model: M3P4H523 Power: 2.2KW Speed: 1420r / min
Oil pump model: VAI-15F-A3 Rated pressure: 7Mpa Rated flow: 8ml / rev
Dimensions: 1550 × 650 × 1800mm