The hammer head of the crusher is one of the core components of the hammer crusher. It is arranged on the hammer shaft of the rotor of the crusher. The hammer head directly hits the material when the crusher is running at a high speed, and finally crushes the material into a suitable particle size. The hammer head of the crusher can be divided into two types according to the manufacturing process: casting and forging, but their wear resistance is different. Due to the crushed material, the head needs good wear resistance and the handle needs sufficient toughness. Usually, alloy steel, high manganese steel, cast steel and high chromium cast iron bimetal composite are used for forging or casting. The hammer of the crusher can be divided into types according to the material: high manganese steel hammer, bimetal hammer, composite hammer, big golden tooth hammer, medium chrome alloy hammer, hard alloy hammer Hammer head, etc. The main factor is the content of silicon dioxide. The technology under modern industry shows that the use of cemented carbide hammer head performs well in wear resistance.
Performance characteristics
1. The impact force on the material is increased. Because the center of gravity of the hammer head of the hammer crusher moves outward in the radial direction of the radius of gyration, the linear speed of the hammer head increases during operation. The impact energy of the hammer head of the hammer crusher on the material is increased, thereby improving the crushing effect.
2. The effective wear of the hammer head of the hammer crusher has increased. The single weight of the hammer head is generally calculated as 27 kilograms, and the effective wear amount accounts for one third, that is, 9 kilograms. The total weight of the improved structure changes little, and the effective wear amount reaches 16 kg. The hammer head of the improved set is equivalent to the two sets before the improvement, which reduces the use cost.
3. The discharge granularity is reduced, and the output per hour is improved. After the improvement, the length from the suspension hole to the end of the hammer head is from 350 mm to 360 mm, the turning diameter is about 1250 to 1270 mm, and the clearance between the hammer head and the shell plate of the hammer crusher is reduced from 25 mm to 15 mm. Therefore, the discharge particle size can be changed from the original 20 mm or less, 25% of the powder to 8-10 mm, 60% of the powder, which greatly improves the crushing effect of the crusher, thereby increasing the output per hour. .
4. Improved grinding results. After secondary crushing of limestone and other materials, it is necessary to study the energy consumption and efficiency. The crushing efficiency is higher than that of grinding, and the power consumption is small. Therefore, it is required and desired that the limestone is broken more and less ground. The discharge particle size is 8-10 mm, 60% of the powder, which greatly improves the production effect of the powder machine. The output is raised from 12 tons per hour to 16 tons per hour, which reduces the production cost of raw material.
Post time: Jun-09-2022