Hammer head for crusher is one of the core parts of the hammer crusher, they are arranged on the hammer shaft of the crusher rotor, and directly strike the material when the crusher is running at high speed, and ultimately realise the crushing of the material. The following is a detailed analysis of the hammerhead for crusher:
Basic Classification
According to the different manufacturing process and materials, the hammerhead for crusher can be divided into various types:
1. casting hammer head: made by casting process, it has the advantages of lower cost and higher production efficiency, but the wear resistance is relatively poor.
2. forged hammer head: made through the forging process, can eliminate the metal in the smelting process produced by the casting state of loose and other defects, optimise the microstructure, improve the wear resistance and mechanical properties of the hammer head. Forged hammer head is favoured by users because of its economic and durable features.
In addition, according to the different materials, the hammerhead for crusher can also be divided into high manganese steel hammerhead, high chromium alloy hammerhead, carbide hammerhead and so on. These hammers have their own characteristics in terms of wear resistance, toughness, hardness, etc., and are suitable for different crushing scenes and materials
Performance Characteristics
1. Abrasion resistance: Hammer heads for crushers need to have good abrasion resistance to cope with long-term high-speed impact and wear. Different materials of hammerheads have different abrasion resistance, such as high chrome alloy hammerheads have excellent abrasion resistance.
2. Toughness: The shank of the hammer head needs sufficient toughness to withstand the impact load and prevent breakage in the crushing process. High manganese steel hammerhead is famous for its good toughness.
3. Hardness: the greater the hardness of the hammer head, the greater the wear resistance, but too high hardness may reduce the impact toughness of the hammer head. Therefore, when choosing the material of the hammer head, you need to consider the hardness and toughness of the two factors.
Applicable Scenarios
Different types of crusher hammerheads are suitable for different crushing scenes and materials:
- Forged hammer head: suitable for crushing pebbles, gangue, limestone and other materials. Forging can eliminate metal defects, optimise the organisational structure and improve mechanical properties.
- High manganese steel hammerhead: suitable for large and medium-sized crusher tooth plate, mortar wall, crushing wall and large excavator bucket teeth and other strong impact conditions. Its high toughness makes it possible to produce work hardening quickly on the surface under large impact or contact stress, which improves the wear resistance.
- High chrome alloy hammer head: excellent hardness, suitable for fine crusher and impact crusher with supporting hammer frame. Particularly suitable for crushing high hardness materials such as quartzite, basalt and so on. However, it should be noted that its toughness is poor, in the absence of hammer frame support is prone to fracture.
Maintenance
In order to ensure the normal operation and prolong the service life of the hammerhead for crusher, it is necessary to carry out regular maintenance work:
1. Check the wear and tear: check the wear and tear of the hammer head regularly, and replace it in time if it is found to be seriously worn.
2. Keep clean: Regularly clean the debris and residual materials in the crushing chamber, keep the hammer head and crushing chamber clean.
3. Reasonable use: Avoid overloading and improper operation that may lead to damage or failure of the hammer head.
In summary, the hammerhead for crusher plays a vital role in crushing operation. It is important to choose the right type and material of hammer head and carry out regular maintenance to ensure the normal operation and prolong the service life of the crusher.
