Novel ring-hammer-crusher ring hammer

Abstract

The invention discloses a novel ring-hammer-crusher ring hammer which comprises a hammer body, wherein a hexagonal hole is formed in the center of the hammer body; a trapezoidal groove is formed in the outer ring surface, corresponding to a hexagon, of the hammer body; a wear-resistant body is arranged in the trapezoidal groove by build-up welding. Since the hammer body is made of medium carbon cast steel with certain toughness and plasticity and relatively high strength and hardness and the inner hole is designed into the hexagonal hole, the strength of the hammer body is enhanced, and fracture of the hammer body can be effectively prevented. The hexagonal hole also can effectively avoid relative slip and deflection caused by collision of the ring hammer, and the breaking effect is betterthan that of an existing round hammer. A hexagonal interior angle is randomly articulated with a pin shaft to hit a material, trapezoidal holes are formed in six hitting surfaces, and a wear-resistant material is arranged in the holes by build-up welding; therefore, the hammer body strength and the welding firmness are enhanced, build-up welding can be further performed after abrasion, and the service life is greatly prolonged.

Description

technical field [0001] The invention relates to a novel ring hammer of a hammer crusher. Background technique [0002] Ring hammer crusher is a kind of impact rotor crusher with ring hammer. After the material enters the crusher, it is first crushed by the impact of the ring hammer rotating with the rotor at high speed. The crushed material obtains kinetic energy from the ring hammer at the same time. , rushed to the crushing plate at a high speed, was crushed for the second time, and then fell to the sieve plate, and was further crushed by the shearing, extrusion, grinding of the ring hammer, and the collision between materials and materials, and passed through the sieve hole drain. At present, ring hammers are mostly ring-shaped, also known as round hammers. The material of the ring hammer is mostly made of high manganese steel ZGMn13 or other wear-resistant alloy steel. When the outer ring surface wears to a certain extent, it must be replaced. Otherwise, the ring hamme...

AI Technical Summary

Problems solved by technology

The material of the ring hammer is mostly made of high manganese steel ZGMn13 or other wear-resistant alloy steel. When the outer ring surface wears to a certain extent, it must be replaced. Otherwise, the ring hammer will break due to the small cross-sectional area, so the service life of the ring hammer is short and the material waste is serious.

In addition, the round hammer is inserted into the pin shaft of the rotor body. Due to the action of centrifugal force, the round hammer is thrown outward to form a striking moment. However, after colliding with the material, the inner ring surface of the round hammer and the pin shaft will slide relative to each other, resulting in deflection. Phenomenon, affecting the impact effect

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