Jaw crusher in everyday use, there is the inevitable wear and tear, how to reduce the wear and tear?It can not only increase productivity but also improve economic efficiency, so we jaw crusher spindle, eccentric shaft and bush areas for long-term maintenance!
Jaw crusher works as a song-action extrusion type, and its working principle is: the motor-driven belt and pulley, the eccentric shaft so that the upper and lower jaw movement, jaw rises when moving the elbow angle between the plate and moving jaw larger, thus promote the jaw plate close to the fixed jaw plate, with the same time the material is crushed or split pieces, broken to achieve the purpose; when moving the jaw down, the angle between toggle plate and moving jaw smaller, movable jaw plate in the rod, the spring effect , left the fixed jaw plate, this time broken material from the crushing chamber under the discharge port. With the continuous rotation of the motor for the periodic motion of mobile jaw crusher crushing and waste material, to achieve mass production.
First, the axis of the wear and tear if rarely, just to fix its geometry, turning in a lathe, so that journal to the correct geometry, then the corresponding reduced bearing diameter. But after several such treatment, if the journal size reduction of 5% over the original, it does not allow re-turning, while the shaft should be replaced with new.
Second, jaw crusher is working under the impact load, bearing on the babbitt lining, length of about two years or so, the deadline, you will need to re-cast. If the eccentric shaft and bearing, spindle and bearing are worn, the tip clearance gap of greater than 1.5 times the original assembly, the need to add pads to adjust or replace; oil groove wear 1.5 mm, should be re-opened the oil groove and adjustment. Connecting rod head cover and the gap between the eccentric shaft, wear and tear to 1.5 times greater than the assembly gap, the need to add pads to adjust or replace. When the bearing babbitt on a deeper peel or large scratches, should be re-cast. For the bearing quality after processing the following requirements: babbitt surface color to be uniform, light, silver white; babbitt surface layer should not have ash, cracks, blisters, shrinkage, etc., and peel phenomenon.