Knowledge

During the operation of hydraulic excavator, the main pump constantly provides high-pressure oil for the whole hydraulic system, and also bears the pressure impact from …

There are three kinds of energy loss in the working process of excavator 1. Energy loss when the control valve is in the middle position …

The rotary parking brake is a wet multi disc brake, which is composed of spring, brake piston, steel plate, friction plate, etc. it ensures that …

The excavator of a certain brand is equipped with a 6-cylinder common rail EFI engine. The hydraulic system is a closed center of gravity load …

As one of the most important types of construction machinery in engineering construction, hydraulic excavator has the characteristics of high power, high fuel consumption and …

The main function of the rotary device of hydraulic excavator is to connect the rotary table of the excavator with the vehicle of the excavator, …

When the excavator is in the middle position after the rotary operation, the phenomenon that the excavator is inclined to turn at a large angle …

The pressure and flow of oil cylinder and motor are required to change with the change of resistance and working speed. The special requirements of …

The main function of the rotary device of hydraulic excavator is to connect the rotary table of the excavator with the vehicle of the excavator, …

In the hydraulic system of hydraulic excavator, there are six executive elements: left and right walking motor, platform rotary motor, boom hydraulic cylinder, stick hydraulic …