Motor model: M3P4H523
Oil pump model: VAI-15F-A3
Rated pressure: 7Mpa
Rated flow: 8ml/rev
Hydraulic loaders are the main machinery in mechanical engineering. They are widely used in engineering construction, construction road construction, hydraulic engineering, national defense fortifications and other earthwork construction and mine loading operations. Loaders as walking machinery are widely used in the loading, lifting and transportation of earthwork, stone, loose goods and piles of goods. Loaders also have a light shoveling ability. 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 powerful.
1. The test bench is made of cold-rolled steel plate (with plastic spraying and anti-corrosion treatment), and has a desktop 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 table. The overall structure is compact and coordinated, the layout is beautiful and generous, and the practicability is strong, and it can be used for 4-6 people to experiment.
3. The full metal structure of the loading machine is reduced in proportion to the actual product. During the experiment, the hydraulic system is activated to operate the machine according to the experimental requirements.
4. The loading machine is made according to the actual structure and reduced scale, which can truly reflect the actual working conditions of the machine, so that students can deeply understand the structure and working principle of each part of the machine in the experiment.
5. Experimental control adopts manual control and automatic control.
6. The experimental parts adopt pressure-resistant hoses, and the pressure can reach 25Mpa.
7. With three-phase leakage protection, the output voltage is 380V/220V, the power supply will be cut off when the leakage current to the ground exceeds 30mA; the electrical control adopts DC 24V power supply, and with overvoltage protection to prevent misoperation from damaging the equipment.
1. Demonstration control experiment of hydraulic loading machinery
1) For loading operation, after the bucket is loaded, the rocker cylinder extends to make the bucket reverse and the boom lifts;
2) Unloading operation, bucket unloading (the rocker arm retracts to make the bucket turn), and the boom descends.
2. Programmable controller (PLC) electrical control experiment: machine-electric-hydraulic integrated control experiment.
1) PLC instruction programming, ladder diagram programming learning;
2) Learning and using PLC programming software;
3) Communication and online debugging between PLC and computer;
4) The application of PLC in hydraulic drive control and the optimization of the control scheme.