An effective method to improve the accuracy of gears

Grinding is a kind of precision machining technology when other metal cutting methods are not satisfied with the requirements of workpiece precision and surface roughness. The basic principle of lapping is to take part in the abrasive between the workpiece and the workpiece, or between the lapping tool and the workpiece. Under a certain pressure, the abrasive in the abrasive carries out micro cutting on the workpiece.

Generally speaking, the higher the pressure, the higher the grinding power. General Abrasives can only be applied with very small pressure. If the pressure is slightly higher, the abrasive particles will embed into the surface of the workpiece or form scratches. Cronex special abrasive material is to deal with the current problem that all abrasive materials can not be used under high pressure. It is a kind of colloidal solution produced by special technology. All abrasive grains are wrapped by colloidal solution. The cutting effect of abrasive grains changes with the size of pressure. The cutting effect of pressure is strong, and vice versa.

The abrasive distribution is highly uniform, and the abrasive will not be thrown out or splashed during grinding operation. It has smooth function, the pressure of grinding can reach the work load of the workpiece, the surface of the workpiece is not scratched, sand embedded and glued, and can be used at very high temperature.

For example, in the field of mechanical manufacturing, precision grinding and polishing of high-precision gears, circular arc gears, bevel gears, internal gears, worm gears, deep holes with large slenderness ratio, inner surface of special-shaped watch, and correction of manufacturing errors of large parts and devices can be handled simply. For the grinding of soft metals such as copper, aluminum and Babbitt alloy, generally, abrasives are not allowed to be used because of scratch and embedding. The special abrasive can be used under high pressure for this kind of soft metal without scratch and embedding. Under certain conditions, grinding can be replaced by grinding, scraping can be replaced by grinding, honing can be replaced by grinding.

In order to reduce the noise pollution of the environment, the requirement of low noise is put forward for the escalator. A sound level is required to be less than 60dB. The noise of a batch of escalator drives developed by us exceeds the standard. How to reduce the noise has become the key problem to improve the product quality. After inspection, the machining accuracy of transmission reducer gear is low, some parameters are severely out of tolerance, and the surface roughness value is high. When the gear machining accuracy is low and the tooth surface is rough, there are only a few touch points in the gear meshing, which makes the touch not stable, and the deformation time is short, and the gear oscillation is large, which is the main factor of noise.