Engine: The engine of the excavator is the core component of power. It is responsible for driving the hydraulic pump and other mechanical parts to provide the required power and energy for the excavator.
In addition to the common components in the hydraulic system, there are some other important mechanical components that are worthy of understanding.
Engine: The engine of the excavator is the core component of power. It is responsible for driving the hydraulic pump and other mechanical parts to provide the required power and energy for the excavator.
Gear transmission system: The gear transmission system of the excavator is used to pass the power of the engine to the hydraulic pump and other mechanical components. It achieves different speed and torque output through combination of gears of different sizes to meet the needs of excavators under different working conditions.
Steel structure: The steel structure of the excavator is an important part of supporting and protecting mechanical components. It is made of sturdy steel and has sufficient strength and rigidity to cope with the various forces and vibrations of the excavator in the work.
Control system: The control system of the excavator is used to operate and control the movement of mechanical components. It includes components such as the control lever, control valve, sensor, and electronic control unit to achieve accurate operation and flexibility of the excavator.
Tire or track: excavators can be equipped with tires or tracks according to different working needs. Tires are suitable for flat ground operations, while the tracks are suitable for complex terrain and uneven working areas, providing better traction and stability.
These mechanical parts together constitute an important part of the excavator, and their coordinated operation and optimization design have an important impact on the performance and work efficiency of the excavator. Understanding the functions and relationships of these components can help us better understand the working principles and operation methods of the excavator.
The excavator hydraulic valve and the hydraulic valve of the excavator in the excavator's hydraulic system have important value in the excavator hydraulic system.
Digger hydraulic valve: The excavator hydraulic valve is used to control the flow and pressure of the hydraulic oil in the hydraulic system. They play a key role to ensure the stability and reliability of the hydraulic system. By controlling the switching status of the liquid pressure valve, the operator can accurately control the various actions of the excavator, such as the thumbs of the arm rod, the bucket cylinder opening and closing. The excavator's liquid pressure valve can also adjust the flow and pressure according to the work needs to adapt to different mining tasks.
Working voltage voltage valve: The hydraulic valve of the working pressure machine is used to control the work pressure of the excavator to ensure its safety and stability in the working process. By adjusting the work pressure, the working pressure vector can ensure that the excavator is operating normally under various working conditions. They can also automatically adjust their work pressure based on changes in work load to achieve the best work efficiency.
The role of these two hydraulic valves in the excavator hydraulic system is interrelated. The liquid pressure valve of the excavator controls the flow and pressure of the hydraulic oil, and the working pressure valve is adjusted to the work pressure. They cooperate together to ensure that excavators maintain stable and efficient performance during work. The reliability and accuracy of these liquid pressure valves are critical to the work efficiency and operational safety of the excavator.
The diagnosis and exclusion method of the excavator hydraulic system can take the following steps:
Observation and inspection: First, observe the external conditions of the hydraulic system, and check whether there are leaks, damage or abnormal phenomena. Check the level and quality of hydraulic oil to ensure the normal working conditions of the hydraulic system.
Fault code and sensor detection: Modern excavator hydraulic systems are usually equipped with fault code display and sensors, which can provide information about system failure. By reading the fault code and checking the state of the sensor, you can determine the potential problems in the hydraulic system.
Pressure test: Use the pressure gauge and other test equipment to detect the pressure and flow of the hydraulic system. Through the differences between the actual values and the normative values, you can determine whether there is a problem of insufficient pressure or too high.
Hydraulic valve inspection: The hydraulic valve is a common failure point in the hydraulic system. Check the working status, sealing and channel obstruction of the voltage valve. Clean or replace the damaged hydraulic valve to restore normal valve operations.
Hydraulic oil inspection: Check the quality and level of hydraulic oil. Ensure that the viscosity, cleanliness and ratio of hydraulic oil meet the requirements. If necessary, replace the hydraulic oil and clean or change the hydraulic oil filter.
System exhaust: exclude the air in the hydraulic system to prevent the effect of bubbles from the performance of the hydraulic system. By opening the corresponding air bubble exhaust valve or system circulating operation, the air is discharged from the system.
Connect and pipeline inspection: Check the connecting parts and pipelines of the hydraulic system to ensure that there are no loosening, wear, oil leakage or blockage. Tightening, replacement or cleaning if necessary.
Original motivation inspection: Check the original motor (such as engine or motor) of the hydraulic system to ensure that its work is normal. Check related components such as fuel supply, power supply, and transmission system to ensure that the power source of the hydraulic system runs normally.
Professional maintenance: If the above steps cannot solve the problem, or the complex failure of the hydraulic system, it is recommended to seek professional maintenance personnel for diagnosis and repair.
To check the working status and channel obstruction of the voltage valve, you can follow the steps below:
Disclosure and safety measures: Make sure the excavator is in the state of the shutdown and take appropriate security measures, such as cutting off the power supply or locking operating parts to prevent accidents from starting or damage.
Observation and inspection: Observe the appearance of the voltage valve, check whether there is leakage, damage or abnormal phenomenon. Pay special attention to the sealing situation around the valve body and the valve port.
Cleaning hydraulic valve: Use the appropriate cleaning agent and brush to clean the outer surface of the hydraulic valve, and ensure that the dirt and particles attached to the valve body are cleared. Make sure that the cleaner does not enter the valve port and internal channels.
Check the operation of the valve port: The controller or the manipulatory rod of the voltage valve is operated to observe the movement of the valve port. Make sure that the valve port can open and close smoothly without stuck or stagnation.
Check the channel block: Use the pressure gauge or flow meter and other test equipment to test on different channels of the hydraulic system. Check whether the import and export channels of the voltage valve are unobstructed and whether there are blocking or blocking.
Check the seal: Check the sealing of the hydraulic valve, especially the sealing parts around the valve port. Ensure that the sealing parts are not worn, aged or damaged to prevent hydraulic oil leakage or external impurities enter the valve port.
Cleaning or replacement of voltage valve: If there is a serious failure, obstruction or seal problem if the hydraulic valve is found, it may need to be cleaned or replaced with the hydraulic valve. When cleaning the voltage valve, use appropriate cleaning agents and methods to follow the manufacturer's suggestions.
