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The Basic Working Principle Of Electric Hydraulic Tools

Views: 20     Author: Site Editor     Publish Time: 2025-01-20      Origin: Site

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Electric hydraulic tools are tools that use electric energy to drive the hydraulic system to achieve high-intensity operations. It converts electric energy into mechanical energy through an electric motor, and then converts mechanical energy into hydraulic energy through a hydraulic system to drive the tool to complete high-load work such as cutting, expansion, and lifting. Electric hydraulic tools are widely used in many fields such as industrial manufacturing, construction, and traffic accident rescue. The basic working principle of electric hydraulic tools will be introduced in detail below.

 

1. Basic structure of electric hydraulic tools

Electric hydraulic tools are composed of several core parts:

Motor: used to convert electric energy into mechanical energy and drive the hydraulic pump.

Hydraulic pump: driven by an electric motor, converts mechanical energy into hydraulic energy, and generates sufficient hydraulic oil flow and pressure.

Hydraulic oil: a liquid used to transfer energy, usually mineral oil or special hydraulic oil, which plays a role in lubrication, cooling and power transmission.

Control valve: used to adjust the flow direction, flow rate and pressure of hydraulic oil to achieve precise control of the hydraulic system.

Actuator: drives the working parts (such as hydraulic cylinders, hydraulic motors, etc.) through hydraulic pressure to perform various operations, such as cutting, expansion, lifting, etc.

Oil tank: used to store hydraulic oil and maintain the normal operation of the hydraulic system.

 

2. Working principle of electric hydraulic tools

The working principle of electric hydraulic tools can be divided into the following steps:

1) Electric motor drives hydraulic pump

When the electric hydraulic tool is turned on, the electric motor starts to run. The mechanical energy of the motor is transmitted to the hydraulic pump through the coupling, driving the rotor of the pump to start rotating. The function of the hydraulic pump is to convert mechanical energy into hydraulic energy (i.e. flowing hydraulic oil). The hydraulic pump extracts the hydraulic oil from the oil tank by rotation and sends it into the hydraulic system after pressurization.

 

Electric Hydraulic Tools Wholesale4

2) Pressurization and transmission of hydraulic oil

The pressure generated by the hydraulic pump transports the hydraulic oil to the control valve through the pipeline. At this time, the hydraulic oil carries enough pressure and becomes the power source of the hydraulic system. The hydraulic oil flows through the control valve under high pressure and enters the hydraulic cylinder or hydraulic motor for further work.

 

3) Adjustment and direction control of the control valve

The control valve is one of the core components of the hydraulic system. It adjusts the flow direction, flow rate and pressure of the hydraulic oil according to the operation requirements. For example, when the piston of the hydraulic cylinder needs to be pushed to work, the control valve will guide the hydraulic oil to the oil inlet of the hydraulic cylinder; when the operation needs to be stopped, the control valve will cut off the oil source and stop the movement of the hydraulic cylinder.

 

4) Actuator operation

The hydraulic oil adjusted by the control valve enters the actuator, usually a hydraulic cylinder or a hydraulic motor. The piston in the hydraulic cylinder reciprocates under the pressure of the hydraulic oil, pushing the working parts of the tool, such as cutting blades, expanders or other working tools, to complete the corresponding work. For example, hydraulic scissors push the scissor blades to cut through the hydraulic cylinder, and the hydraulic expander pushes the expansion arm to unfold through the hydraulic oil.

 

5) Oil reflux and circulation

When the hydraulic oil has completed its effect on the actuator, it flows back to the oil tank and waits for the next round of pressurization and circulation. During this process, the hydraulic oil is cooled, filtered, and other processes to maintain the stability and efficiency of the hydraulic system. The reflux of hydraulic oil generally returns to the oil tank through the return oil pipeline to ensure the continuous operation of the system.

 

3. Features of electric hydraulic tools

High efficiency: Electric hydraulic tools are driven by electric motors and can provide powerful hydraulic power to meet the needs of high-load and high-intensity operations.

Precise control: Electric hydraulic tools are usually equipped with precision control valves and sensors, which can accurately adjust the flow and pressure of hydraulic oil to ensure the stable operation of the actuators.

Energy saving and environmental protection: Compared with traditional internal combustion engine-driven tools, electric hydraulic tools reduce fuel consumption and noise pollution and are more environmentally friendly.

Easy to operate: Electric hydraulic tools are usually equipped with a simple and intuitive operating interface, which is easy to operate and reduces the complexity of manual operation.

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