Common Faults and Solutions of Shot Blasting Machine (Part One)

Shot blasting machine is vulnerable to consumption. It will occur a variety of problems during operation，so Jiangsu Longcheng Casting Machinery sum up the common problems and their treatment methods.

Cause analysis and measures of the blasting head bearing failure

The main problems of the bearing are: the installation is not standardized, the lack of lubricating oil, fatigue wear, external damage, etc. Corresponding measures: installation and regular maintenance of bearings must be in strict accordance with the specification, filling lubricating oil to improve the lubrication condition. The original head of the bearing body parts using a high-pressure gun to fill the oil. It takes 3 hours to complete the lubricating oil filling for 8 blasting heads. It's not safe and it's a waste of time. Now the use of each of the head of the bearing parts through the high-pressure steel hose connected by the high-pressure oil pump automatic refueling. It is safe and efficient as 10 minutes is enough for 8 blasting heads. The selection of the proper lubrication oil will directly affect the service life and machine performance of shot blasting machine. Usually the shot blasting head bearing surface temperature is not more than 60 degrees. Using the innovative polymerization of lipid 1615EN sulfo with water resistance strong, corrosion resistance, high temperature (100 degrees higher than ordinary lithium grease) and long service life. The use of high efficiency axial fan for forced cooling, reducing the bearing temperature of the environment. Increasing the exhaust hole of the shot blasting head in order to automatically add lubricating oil. Regularly maintain impeller, blade, guard plate and belt, etc. to eliminate the mechanical resonance caused by external forces.

Cause analysis and measures of the blade

The blade of the shot blasting machine is thrown by most of the blasting steel shots, so the blade is the most easily damaged component. Blade wear or cracking will cause the impeller to rotate at high speed to produce vibration. During the inspection, if the blade appears deep groove or wear more than half when it should be replace timely. In addition, the blade casting defects will accelerate the erosion of the blade, as the blade casting defects will make the steel shots bouncing phenomenon in the process of movement. The bouncing steel shots, in turn, causes erosion on the blade, which increases the wear of the blade. In order to ensure the stability of shot blasting machine operation, the blade must be replaced in pairs. That is to say, the blade relative to the undesirable blade must be replaced at the same time to obtain good dynamic balance. If the problem of the shot blasting blade leads to the abnormal work, all the blades must replaced, and the blade with the casting defect is resolutely forbidden. Please pay attention that the weight difference between the 8 blades shall not be greater than 5 grams.