How to solve the problem of bearing as an important accessory?

发布时间：2024-07-17 点击次数：

In recent years, corn deep processing machinery as a production line in a necessary piece of equipment, in the use of the process the operator must operate in accordance with the regulations, do a good job of routine maintenance, because the equipment after a long period of time, there must be aging phenomenon, then the bearings as an important part of the problem when what to do?

Preheating before welding shaft and end cap bore 150-250 ℃ preheating. Shaft ordinary selection of J507Fe electrode, end cap bore Yong ordinary cast iron welding rod. Welding is completed, immediately buried deep in the dry lime powder cooled slowly, to control the phenomenon of rapid cooling embrittlement, must pay attention to:

① concentricity correction value of not more than 0.015mm, to avoid the eccentricity of high-speed running noise increases, vibration and heat, so that the motor life shortening

② motor journal <40mm, it is appropriate to use 6-8 equal parts of the line welding way, > 40mm of the journal should be full of welding way, this is the shaft in the power output of the resolution of the size of the force transfer.

Regardless of the type of surfacing, should pay attention to the use of intermittent transport bar, symmetrical welding, in order to prevent part of the welding stress is too large and the first high, the formation of concentricity of the shaft to increase the change.

③ lathe processing, 11KW below the motor shaft turning roughness control 3.2 or so, 11KW motor shaft and end cap hole turning, good and then use the grinder finishing to ensure quality.

When presented with the rotor and shaft separation, first with high temperature 502 adhesive on the reset of the rotor and shaft gap to stop filling, be filled with parts to be placed vertically, the action should be fast. Both ends of the irrigation, and then use 40 per cent of the salt water re-pouring, placed a few days later, can be assembled and used.