Analysis on the Failure of High Voltage Raymond Mill Gear Transmission

In the process of high-pressure raymond mill operation, gear transmission failure is one of the more common faults. Once the Raymond mill gear drive failure, will seriously affect the smooth operation of milling operations, delay the entire production line of efficient work. So then. What are the reasons for the failure of high-pressure Raymond Mill gear transmission?
1, due to the special nature of the high-pressure mine grinding work environment, in the grinding operation, the gear transmission of the working environment is poor, in the case of dust particles seriously affected, resulting in serious gear pollution. Or gear transmission parts of the lubricating oil is not timely, heavy oil pollution, etc., will cause high-pressure Raymond gear transmission failure.
2. After the gear drive has been in operation for a period of time, the axes of the pinion and the Raymond mill grading drum may become non-parallel, resulting in the meshing of the gears into local contact. If the gears in the entire tooth width on the uneven force, it is likely to cause the gear shaft to produce bending and torsional deformation. In addition, if the gear transmission material is not uniform, there are slag, pores and hard particles, surface or sub-surface local shear stress is too large, resulting in broken teeth phenomenon. The same time as
3, in the high-pressure Raymond grinding gear on the existence of stress concentration, when the gear tooth into the meshing state, in the excessive equivalent of contact shear stress, the surface layer to form the original crack. During the operation of the gear, the high pressure oil wave generated by the contact pressure enters the crack at a very high speed, and has a strong fluid impact on the crack wall. At the same time, the gear sub-surface can seal the crack mouth and make the oil pressure inside the crack Rise, and force the crack to the depth direction and the direction of the tooth surface expansion, the material off from the tooth surface, the formation of pitting.
4, in the transmission gears in a single tooth to bear the load time to greatly extend, which is caused by gear wear too fast an important reason. And the degree of reduction will inevitably lead to increased gear backlash, so that some of the impurities and air in the floating objects and dust easier to enter the gear between the meshing surface, causing abrasive wear occurred.

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