What is the reason for the gear wear of the injection molding machine?
1. The location of the meshing wear marks is on the index circle of the gear and evenly distributed along the tooth width surface. This is a reflection of the correct meshing position of the gear meshing transmission. The gear transmission uses the machining accuracy of the box shaft hole pitch to be within the required tolerance range. A set of gears on the transmission shaft meshes, and the wear meshing marks should be distributed in this way.
2. The location of the meshing wear marks is close to the tooth tip under the gear index circle. This phenomenon shows that the distance to the gear meshing center is greater than the theoretical center distance for the gear meshing. This factor can be verified by actually measuring the center distance of this to the gear drive shaft.
3. The location of meshing wear marks is close to the tooth root under the gear index circle. This phenomenon shows that the distance to the gear meshing center is smaller than the theoretical center distance for gear meshing.
4. The location of the meshing wear marks is on the side of the gear surface along the tooth width direction. This phenomenon indicates that the gear milling precision is low, because the hobbing cutter's feed movement direction and the gear centerline are separated during milling. It is caused by non-parallelism and a slight included angle. As a result, the tooth surface and the gear center form a spatial intersection angle, so that the tooth surface must not be in full contact during gear meshing transmission; another reason for this phenomenon is that this is for meshing. The center lines of the drive shafts of the gears are never parallel.
The subsequent phenomena of the gear meshing contact mentioned above will increase the working noise of the gear transmission and reduce the working life of the gear transmission. During the maintenance of gears, for example, if such a phenomenon is discovered, it should be corrected in time.