Causes and Solutions of Gear Failure of Grinding Machine

The gear of the grinder is an important part of the normal operation of the vertical mill. When there are some problems with the gear, it is very troublesome. Then let's understand the cause of the gear failure of the grinder and the solution!

The grinder gear has a radial direction and an end face. When the grinder gear is installed, the large gear is fixed with bolts, and the movement of the end face is adjusted by the screw hole. The helical holes are distributed on the circumference of the large ring gear. When the end face of the large gear ring does not meet the requirements, the vertical mill runs for a long time, the bolts are loose, and the ring gear and the ring gear are easy to vibrate and deform.

Pinion vibration caused by loosening of the grinding machine gear hub:

The reason for the gear vibration of the grinder is that the eccentricity of the gear shaft and the shaft, the inclination of the gear axis and the extension axis are greatly offset; the foundation bolt is loose. We often tighten the bolts, but they are still loose.

grinding machine gear assembly is not smooth:

The focus is on the vertical mill with small gears and large gears. If assembled, it can extend the life of the vertical mill gears and reduce vibration. When installing the gear, the large gear has been fixed on the cylinder. At these two points, the position of the pinion needs to be adjusted. The axial direction of the small gear and the large gear ring must be parallel to the line; if the correct backlash and backlash are too small, the reverse phenomenon is prone to occur;

If it is large, the gear is easy to break, the end cover is worn, the pinion is worn, the cover lining is cast iron hair embryo, due to the impact of the material and steel for a long time, the lining of the fixing bolt is often loose. Then the pulp cap leaks from the bolt hole. In addition, because the transmission gear cover is not tightly sealed, the pulp is easily discarded on the ring gear, resulting in gear wear and shortened life.

Grinding machine gear processing technology includes gear rough processing, tooth surface processing, heat treatment process and tooth surface finishing.

The gear blank materials of the grinder are mainly forgings, bars or castings, of which forgings are used more frequently. The blank materials are normalized first, the cutting die is improved, and it is easy to cut. Then rough machining is carried out. According to the gear design requirements, the blank is first machined into a general shape, leaving more allowance. Then carry out semi-finishing, insert cars, rollers and teeth to make the gear basically form. Then heat treat the gear, improve the mechanical properties of gears. According to the use requirements and the materials used, there are quenching and tempering, carburizing quenching, tooth surface high-frequency induction heating quenching, etc.; finishing the gear, finishing the benchmark, finishing the tooth profile.

The above introduction is the cause and solution of the grinding machine gear failure. If you need to know more about the grinding machine gear, please feel free to contact us! Customer service online at any time to provide you with services, our company in the production of grinding machine gear has many years of experience, always look forward to your joining!