PC200-6 PC300-8 Excavator Loader accessories 723-40-85100

Hydraulic excavator hydraulic system detailed introduction
According to the transmission requirements of the excavator working device and each mechanism, the assembly that organically connects various hydraulic components with pipelines is called the hydraulic system of the excavator. Its function is to use oil as the working medium, the use of hydraulic pump to convert the mechanical energy of the engine into hydraulic energy and transfer it, and then through the hydraulic cylinder and hydraulic motor to turn the hydraulic energy back into mechanical energy, to achieve various actions of the excavator.
First, basic requirements
The action of hydraulic excavator is complex, where the mechanism often starts, braking, reversing, load changes, shock and vibration frequently, and field operation, temperature and geographical location changes greatly, so according to the working characteristics and environmental characteristics of the excavator, the hydraulic system should meet the following requirements:
(1) To ensure that the excavator arm, bucket rod and bucket can operate separately, and can also cooperate with each other to achieve compound action.
(2) The action of the working device and the rotation of the turntable can be carried out both individually and in combination to improve the productivity of the excavator.
(3) The left and right tracks of the crawler excavator are respectively driven, so that the excavator is convenient to walk, flexible to turn, and can be turned on the spot to improve the flexibility of the excavator.
(4) Guarantee the excavator. All movements are reversible and continuously variable.
(5) Ensure the safe and reliable work of the excavator, and the actuator components (hydraulic cylinder, hydraulic motor, etc.) have good overload protection; Rotary mechanism and walking device have reliable braking and speed limit; Prevent the boom from falling fast due to its own weight and the whole machine speeding slope