The hydraulic power station converts mechanical energy into hydraulic energy and provides high-pressure fluid power to hydraulic tools. Its workflow is as follows:

1. Power input

Prime mover drive: Hydraulic power stations are typically powered by an electric motor, diesel engine, or gasoline engine to drive the hydraulic pump.

2. Hydraulic pump operation

Energy Conversion: Hydraulic pumps (such as gear pumps, plunger pumps, or vane pumps) convert mechanical energy into hydraulic energy, draw hydraulic oil from the tank, and output it under pressure.

Pressure regulation: The pressure at the pump outlet is controlled by an overflow valve to ensure that the system pressure remains stable at the set value (such as 100-700 bar, depending on the tool requirements).

3. High pressure fluid transportation

Pipeline connection: High pressure hoses connect the power station to hydraulic tools (such as hydraulic wrenches, jacks, breakers, etc.) to transport high-pressure oil.

Direction control: By manually or using an electromagnetic directional valve to switch the direction of the oil circuit, control the extension/retraction or rotation direction of the tool.

4. Tool execution actions

Hydraulic energy → mechanical energy: High pressure oil enters the hydraulic motor or cylinder of the tool, pushing the piston to move or the motor to rotate, driving the tool to work.

Linear tools (such as oil cylinders): Oil pressure drives the piston rod to move in a straight line.

Rotating tools (such as hydraulic motors): Oil pressure drives the motor to output torque.

5. Return oil and cooling

Oil return: Low pressure oil returns to the oil tank through the return pipeline from the tool outlet, completing the cycle.

Filtering and heat dissipation: The return oil is cleaned by a filter and maintained at a stable oil temperature through the oil tank heat dissipation or air/water cooling system.

Collaboration of key components

Fuel tank: store oil and dissipate heat.

Filter: Keep the oil clean to prevent wear and tear.

Control valve: regulates flow, pressure, and direction.

Accumulator (optional): Buffer pressure fluctuations or provide instantaneous high flow.

advantage

High power density: small volume output with large torque (suitable for heavy-duty tools).

Flexible transmission: transmitting power over long distances through flexible hoses to adapt to complex working conditions.

Application examples

Hydraulic wrench: The power station provides high-pressure oil to drive the motor and output high torque to tighten bolts.

Rescue tool: The hydraulic shear expander achieves rapid support or cutting through an oil cylinder.

Through this system, hydraulic power stations become an efficient and reliable source of energy for various hydraulic tools.