Bi-metal composite plate hammer for impact type ore crusher

Abstract

The invention discloses a bi-metal composite plate hammer for an impact type ore crusher. The bi-metal composite plate hammer comprises a main shaft and a rotor body arranged on the outer surface of the main shaft. A plurality of protruding trapezoid bodies are evenly distributed on the outer surface of the rotor body in the circumferential direction and provided with plate hammer bodies. Rectangular grooves are formed in the upper end faces of the plate hammer bodies, and trapezoid grooves are formed in the lower end faces of the plate hammer bodies. The trapezoid grooves and the trapezoid bodies are correspondingly arranged and fastened through a plurality of bolts arranged in the rectangular grooves in the axial direction. Nuts of the bolts are further connected with steel wires in series. A plurality of hard alloy bars are further inlaid and cast in the plate hammer bodies. The bi-metal composite plate hammer is long in service life, low in cost, high in safety, suitable for crushing high-temperature materials, capable of facilitating machining, firm in structure and high in utilization rate.

Description

technical field [0001] The invention relates to a double metal composite material blow bar for an impact crusher. Background technique [0002] The impact crusher is a machine that uses the high-speed impact of the blow bar and the rebound of the impact plate to crush the material. After the material enters the machine, it is subjected to the instantaneous contact impact of the high-speed rotating blow bar. Throw it to the counter-attack plate suspended on the machine body at high speed in the direction, and return to the blow bar rotation space after colliding with the counter-attack plate. Impact, the surface material of the blow bar is deformed many times and wears out. The blow bar is the main part of crushing materials in the impact crusher, and the blow bar part mainly bears strong impact force and friction force. Because high manganese steel has good work hardening characteristics and high toughness, the blow bar is mostly made of high manganese steel, which is prod...

AI Technical Summary

Problems solved by technology

However, ordinary high manganese steel plate hammers can only be used continuously for about one week, and the main damage form is abrasive wear.

In addition, the existing blow bar is fastened on the side of the boss of the rotor body and can only be used on one side, that is, after one side is worn, the blow bar will be scrapped, the material utilization rate is low, and the service life is short

Images