The hydraulic pump is an indispensable part of the automatic mixer, but after a long time of use, the hydraulic pump will inevitably fail. Which aspects can we start to check?
Olfactory diagnosis method: smell whether the hydraulic oil has peculiar smell by nose. If the smell of the local burnt smell of the hydraulic oil, it indicates that the hydraulic components such as the hydraulic pump are heated locally, which leads to the coking and smoking of the hydraulic oil, so as to determine the heating position. Smell whether the hydraulic oil has odor or pungent pungent smell. If so, it indicates that the hydraulic oil has been seriously polluted and can not be used any more.
Visual diagnosis method: use eyes to observe the working condition of the hydraulic system, observe the pressure value and temperature change of each pressure measuring point of the hydraulic system, and check whether the oil is clean and whether the oil quantity is sufficient. Observe whether there is oil leakage at the hydraulic valve and pipeline joint, the end cover of hydraulic cylinder and the transmission shaft of hydraulic pump. Observe the products processed from the equipment or the performance test, identify the working state of the moving mechanism, the stability of the system pressure and flow, and the working state of the solenoid valve.
Auditory diagnosis: it is to use the ear to judge whether the hydraulic system or components work normally. Listen to whether the noise of hydraulic pump and hydraulic system is too loud, whether there is abnormal sound of relief valve and other components, whether the impact sound is too loud when the worktable is reversing, and whether the piston collides with the bottom of hydraulic cylinder, etc.
Tactile diagnosis method: touch the temperature and working state of moving parts by hand, and touch the temperature of hydraulic pump shell, oil tank outer wall and valve body shell by hand. The normal temperature should be about 55 ℃. If it is higher than 60 ℃, the reason should be found out. Touch the moving parts and oil pipes by hand to feel whether there is obvious vibration.
The above is about the inspection of hydraulic pump of automatic mixer truck. For more details, please pay attention to the company's website: http://www.jfhntjbj.com