Description
hydraulic training set functional characteristics
1. Power components:
(1) Variable plunger pump: the cylinder is controlled by the proportional directional valve to control the displacement of the variable plunger pump: 10 mL/r; flow adjustment range: 1～22L/min (1800r/min); reaction time (0～maximum flow ): 70ms; Rated current: 750mA (flow), 790mA (pressure); Coil resistance: 10Ω; Rated pressure: 16MPa; Pressure adjustment range: 2～20MPa;
(2) Dedicated proportional amplifier: 2 pieces, control mode: differential analog input remote control adjustment, external potentiometer remote control adjustment; ramp time: 0.1～5 seconds adjustable and cut off; maximum output current: 800mA; flutter frequency: 500Hz.
(3) Three-phase AC motor: rated power: 4kW; rated speed: 1420r/min; installation form: horizontal. Proportional variable vane pump and its matching small flow constant difference relief valve (special valve), proportional throttle valve, ordinary relief valve, etc., the diameter must be able to match.
2. Fuel tank: Nominal volume of 130L, with oil temperature and liquid level indicator, oil filter, air filter, cleaning cover and other accessories.
3. Hydraulic auxiliary components: high-precision plate oil filters, pressure gauges, accumulators, pipe joints, seals, etc.
4. PLC control module: 1 PLC host module, using high-performance, high-reliability components, the service life of its main components is not less than 5 years, free replacement. Use CPU226CN PLC above S7-200 series, plus an EM231 analog input module (AI4) and an EM232 analog output module (AO2).All input and output points of the industrial-grade PLC are connected to the safety sockets of the panel, which meets the teaching requirements. At the same time, in order to facilitate the experiment, the interface in the form of multiple aviation plugs is drawn at the same time, and the electrical circuit is convenient and flexible to build. Equipped with programming software, cables, related manuals, etc.
