The operation of the jaw crusher is the extrusion and crushing of movable jaw plate and fixed jaw plate. During the crushing process, the amount of wear of jaw plate is relatively large, especially when encountering hard materials, the degree of crushing will become more serious. How to reduce the wear of the jaw plate and improve the utilization rate of the crusher? Let’s follow me to see what methods to reduce wear and tear.
1. The choice of jaw plate is the first factor to determine the service life
Jaw plate should choose a material with high hardness to resist the damage of extrusion micro-cutting, and choose a material with sufficient toughness to resist the fatigue damage caused by drilling impact. High manganese steel contains 12% manganese and 14% manganese and is usually used to form jaw plate. Small jaw crushers can also make jaw plate from white cast iron. At the same time, the structure of jaw plate can be improved, and the relative sliding between the material and jaw plate can be reduced. Since the lower jaw plate is usually made in a symmetrical shape up and down, the lower worn lower jaw plate can be inverted during minor repairs.
2. The crushed materials should be adapted to the whole machine
When the performance of each batch of materials fluctuates greatly, the main parameters of the crusher, such as clamping angle, eccentric shaft speed, output power, motor power, etc., are adjusted in time to meet the material requirements of the feed crusher and reduce jaw plate wear.
3. The method of repairing jaw plate
For worn jaw plate, it can be repaired by surfacing. Arc welding or automatic submerged arc surfacing can be used for repairs.
4. Movable and fixed jaw plate can be exchanged for each other
Cement enterprises adopting mine crushing process line can replace the worn jaws of mine coarse crushing and cement factory fine crushing, and continue to play a role in replacing new jaws.
5.The installation of jaw plate is to be fastened
The newly installed jaw plate should be tightened to ensure smooth contact between jaw plate and the surface of the machine body (movable and fixed jaw plate). It can be used as lead plate, plywood, cement mortar and other plastic materials between the two sides. The assembly requirement of movable jaw plate and fixed jaw plate is that tooth peak of jaw plate is aligned with the tooth groove of the other jaw plate, that is, movable jaw plate and fixed jaw plate are in a basic meshing state.
Shanvim Industry (Jinhua) Co., Ltd., established in 1991. The company is a wear-resistant parts casting enterprise. The main products are the wear-resistant parts such as mantle, bowl liner, jaw plate, hammer, blow bar, ball mill liner, etc.. There are medium and high , Ultra-high manganese steel, medium carbon alloy steel , low, medium and high chromium cast iron materials, etc.. It mainly produces and supplies wear-resistant castings for mining, cement, building materials, infrastructure construction, electric power, sands and gravel aggregates, machinery manufacturing and other industries.
Shanvim as a global supplier of crusher wearing parts, we manufacture cone crusher wearing parts for different brands of crushers. We have more than 20 years of history in the field of CRUSHER WEAR PARTS. Since 2010, we have exported to America, Europe, Africa and other countries in the world.
Post time: Sep-16-2022