Knowledge

According to the different causes of the abnormal noise of the rotary mechanism caused by the mechanical fault, the abnormal noise of the rotary mechanism …

According to the different causes of the abnormal noise of the rotary mechanism caused by the mechanical fault, the abnormal noise of the rotary mechanism …

  When a large hydraulic excavator rotates and debugs the whole machine, the operation is not stable and the noise exceeds the standard. Through investigation …

  Hybrid excavator is generally divided into oil-electric mixing and oil-liquid mixing according to the form of energy mixing. Oil-electric hybrids are powered by engines …

 The power system of parallel hybrid hydraulic excavator consists of engine, generator (motor), super capacitor, hydraulic system and so on. The mechanical energy of the …

  Hybrid power refers to the joint work of different power sources to give full play to their respective advantages in order to improve the …

  Load sensing refers to the variable control mechanism in which the system can automatically transmit the signal of pressure and flow change required by …

  Negative flow control refers to a control mode in which the flow rate of the median return oil of the multi-way valve acts on …

  Because the use environment of hydraulic excavator is generally bad working conditions such as soil, sand and stone, crawler walking device has the advantages …

Positive flow control means that the pilot pressure of the control valve is used as the control pressure to control the variable mechanism of the …