Days |
Course contents |
1 |
Tasks of a hydraulic installation
Fundamental physical principles of hydraulics
Components of a hydraulic system |
2 |
Components of the power supply section
Pressure valves
Pressure relief valves
Exercise 1: Automatic lathe (Pump characteristic)
Exercise 2: Package lifting device (Pressure relief valve characteristic) |
3 |
Flow control valves
Throttle valve
Non-return valves
Exercise 3: Drawing press (Hydraulic resistances)
Hydraulic cylinders : Single-acting cylinder , Double-acting cylinder
Exercise 4: Calender feeding device - Application of a non-return valve.
Use of a 2/2-way valve to control a single-acting cylinder. |
4 |
Directional control valves
2/2-way valve , 3/2-way valve , 4/2-way valve , 4/3-way valve
Exercise 5: Hardening furnace Single-acting cylinder
Application of a 3/2-way valve. Determination of times
Exercise 6: Furnace door control (Double-acting cylinder ) Application of a 4/2-way valve. Determination of times
Piloted non-return valve
Exercise 7: Conveyor tensioning device (4/3-way valve with bypass to pump) |
5 |
Accumulator
Exercise 8: Cold-store door (Accumulator)
Two-way flow control valve
Exercise 9: Rotary machining station (Flow control valve and counter-holding) |
6 |
Flow control valves
Two-way flow control valve
Exercise 10: Painting booth (Flow control valve characteristic)
One – way flow control valve
Exercise 11: Embossing machine (Application of a one-way flow control valve. Difference between flow control valve and throttle valve on the basis of a Concrete application.) |
7 |
Exercise 12: Surface grinding machine (Differential circuit) Design and mode of operation of a differential circuit. Influence of piston areas on pressures
Exercise 13: Drilling machine - Pressure regulator Design of a control circuit with reduced output pressure. Explanation of mode of operation of a 3-way pressure regulator.
Exercise 14: Bulkhead door -Hydraulic clamping with a double-acting cylinder.
Comparison of circuits with and without counter-holding. |
8 |
Exercise 15: Ferry loading ramp Flow control valve in inlet and outlet lines
Speed control circuit with tractive load. Comparison of circuits with flow control valves in the inlet line and outlet line respectively.
Exercise 16: Bonding press Comparison of pressure regulator and –
pressure relief valve
Specification of pressure for a double-acting cylinder.
Choice of either a pressure relief valve or a pressure regulator
Exercise 17: Assembly device - Pressure sequence circuit, displacement-step |
9 |
Exercise 18: Assembly device Calculation of forces associated with a double-acting cylinder Calculation of advance-stroke time of a cylinder piston.
Calculation of pressure and time
Final Exam |