Analysis of Causes for Failure of High-pressure Raymond Mill Gear Transmission

[xuanxuan geng]

In the process of high-pressure Raymond mill operation, gear transmission failure is one of the more common failures. Once Raymond Mill gear transmission fails, it will seriously affect the smooth operation of the milling operation and delay the efficient operation of the entire milling production line. So. What are the causes of the failure of the high pressure The Standard Operating Theory Of Raymond Mill gear drive?
1. Due to the special nature of the high-pressure Raymond mill working environment, the working environment of the gear transmission is poor when the milling operation is carried out, and the gear is seriously polluted due to the severe impact of the dust particles. Or if the gear transmission parts are not added in time, and the lubricating oil is seriously polluted, it will cause the high-pressure Raymond Grinding gear to fail.
2. After the gear transmission has been operated for a period of time, the axis of the pinion and the axis of the raymond mill classification drum may become non-parallel, resulting in localized contact of the gear mesh. If the gear is uneven across the entire tooth width, it is very easy to cause bending and torsional deformation of the gear shaft. In addition, if the material of the gear transmission material is not uniform, there are slag inclusions, pores, and hard particles, etc., and the local shear stress of the surface layer or subsurface layer is too large, resulting in a broken tooth phenomenon. The
3. There is stress concentration on the high pressure Raymond milled gear. When the gear tooth top enters the meshing state, the surface layer forms the original crack under the effect of excessive equivalent contact shear stress. 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 generates a strong fluid impact on the crack wall; at the same time, the surface of the gear sub-surface can close the crack opening and further increase the oil pressure in the crack. It rises and forces the crack to expand in the depth direction and in the direction of the tooth surface. The material falls off from the tooth surface and forms pitting.
4, in the transmission gear single tooth to bear the load to greatly extend the time, which is caused by excessive wear of the gear is an important reason. The reduction in the degree of coincidence will inevitably lead to an increase in the backlash of the gear, so that some impurities and floating materials and dust in the air more easily enter the meshing surface of the gear pair, causing the occurrence of abrasive wear.