Transparent Hydraulic Training PlatformIt is a modern experimental equipment that integrates teaching, practical training, and innovative design, designed specifically for majors such as mechanical engineering, automation, and mechatronics integration. Its core advantage lies in the transparent hydraulic components and modular structure, which intuitively displays the working principle of the hydraulic transmission system, while supporting multiple control methods and experimental content, comprehensively enhancing students' practical ability and innovative thinking. The hydraulic components are made of imported transparent organic glass material, with a light transmittance of up to 93%. The internal structure and oil circuit direction of hydraulic pumps, directional valves, relief valves, hydraulic cylinders and other components can be clearly observed.
Transparent Hydraulic Training PlatformOperation steps:
Step 1: Preparation before the experiment
Environmental inspection:
Confirm that the training platform is placed on a stable and sturdy experimental platform.
Check that there is sufficient operating space around and no flammable or explosive materials.
Ensure good ventilation in the laboratory.
Equipment inspection:
Visual inspection: Check all transparent hydraulic components (pumps, valves, cylinders, oil tanks) for cracks and damage. Focus on inspecting the organic glass components.
Oil inspection: Observe whether the level of hydraulic oil (usually L-HL32 or L-HM32 anti-wear hydraulic oil) in the oil tank is between the "MIN" and "MAX" on the dipstick. Check if the oil is clean, free of emulsification, and free of impurities. If the oil is cloudy or insufficient, it needs to be replaced or added as required.
Pipeline inspection: Check all oil pipes (usually transparent nylon pipes) for aging, cracks, and bends. Check if the quick connector is intact.
Electrical inspection: Check if the power cord and motor wiring are secure. Confirm that the emergency stop button is in the raised state.
Prepare components and drawings:
According to the experimental manual, prepare the transparent hydraulic component modules required for this experiment (such as directional valves, relief valves, throttle valves, hydraulic cylinders, etc.).
Prepare hydraulic schematics and experimental notebooks.
Step 2: Build the hydraulic circuit
Planning layout:
On the training platform panel, according to the hydraulic schematic, plan the placement of each component to ensure that the oil pipe connection path is the shortest, does not cross, and does not twist.
Installation components:
Securely install the selected hydraulic component module onto the fixed slot or magnetic base of the panel.
Connect the oil circuit:
Use appropriate transparent oil pipes and connect the oil ports of each component through quick couplings.
Key: Connect strictly according to the schematic diagram, with P port (pressure oil port) connected to the pump's oil outlet, T port (return oil port) connected to the oil tank, and A/B port (working oil port) connected to the actuator (hydraulic cylinder or motor).
Ensure that the connector is properly plugged in and locked, preferably with a "click" sound. Gently pull the oil pipe to confirm a secure connection.
Avoid excessive bending or compression of the oil pipe.
Step 3: Startup and Debugging
Safety confirmation:
Recheck all oil pipe connections to ensure they are correct and secure.
Confirm that the hydraulic cylinder piston rod is in a safe position (usually retracted to its shortest position) and that there are no obstacles in the movement path.
Confirm that the overflow valve handle is in the fully released (low pressure) state (rotate clockwise to the end).
Confirm that the throttle valve/speed control valve is at the appropriate opening (usually opened larger first).
Confirm that the reversing valve handle or electrical switch is in the neutral position (for three position valves) or initial position.
Start the oil pump:
Connect the power supply of the training platform.
Press the "Start" button to activate the electric motor and drive the hydraulic pump.
Observation: Listen to whether the operation sound of the motor and pump is normal (smooth, without abnormal noise). Observe whether there are a large number of bubbles in the oil tank (indicating suction).
System exhaust (after s starts or oil changes):
If there is air in the system, it can cause unstable movement, crawling, or loud noise of the executing components.
Method: Slowly operate the directional valve to make the hydraulic cylinder piston rod reciprocate several times, while gently tapping the oil pipe to help the bubbles rise to the oil tank. Observe the transparent components and oil pipes until the oil flows smoothly and there are no bubbles.
Step 4: Regulation and Experiment
Adjust system pressure:
Slowly rotate the regulating handle of the relief valve (usually counterclockwise to increase pressure) while ensuring that the circuit is correct and the executing components are not in motion.
Observe the pressure gauge reading and adjust it to the required pressure value for the experiment.
Attention: Do not exceed the rated working pressure of the training platform (usually ≤ 6MPa).
Operation execution element:
Operate the manual directional valve handle or press the electrical control button to extend or retract the hydraulic cylinder piston rod.
Observation: Carefully observe the dynamic processes such as valve core movement, oil flow direction, and changes in throttle port through transparent components.
Adjust the movement speed:
Adjust the handle of the throttle valve or speed control valve to change the flow rate passing through.
Observe the changes in the movement speed of the hydraulic cylinder piston rod and compare them with theoretical analysis.
Conduct experiments:
Follow the steps in the experimental manual to complete various tests, such as measuring pressure under different loads, recording speed at different openings, and verifying circuit functionality.
Real time recording of experimental data and observation phenomena.
Step 5: End of Experiment and Shutdown
Unloading:
After the experiment is completed, slowly rotate the overflow valve handle back to the open state (clockwise to the end) to reduce the system pressure to low z.
Stop the oil pump:
Press the 'Stop' button to turn off the motor.
Reset:
Operate the directional valve to retract the hydraulic cylinder piston rod back to its initial position.
Dismantling circuit:
After the system stops and there is no pressure, the oil pipe can be disassembled.
Remove the oil pipes in order and cover the component oil ports with specialized plugs or plastic caps to prevent dust and impurities from entering.
Remove the component module from the panel, clean it, and store it back in place.
Cleaning and inspection:
Clean the training platform panel and surrounding environment.
Recheck the oil tank level and replenish hydraulic oil if necessary.
Check the oil pipes and joints, and replace them promptly if any damage is found.