Combined hammer head and manufacturing process thereof

A composite hammer and manufacturing process technology, applied in grain processing and other directions, to achieve the effects of considerable economic benefits, good wear resistance and good impact toughness

Active Publication Date: 2012-01-25
ZHENGZHOU HI TECH MECHANICAL IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of hard materials is high; the filling of hard materials, the cutting, bending, braiding and superimposition of tube wires all consume manpower and man-hours, the processes are complex and the production efficiency is low, so it is not suitable for mass production

Method used

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  • Combined hammer head and manufacturing process thereof
  • Combined hammer head and manufacturing process thereof
  • Combined hammer head and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Such as figure 1 , figure 2 , image 3 As shown, a composite hammer head includes a hammer body 1 and a skeleton 2. The skeleton 2 is arranged in the hammer body 1 and is close to the front end of the hammer body 1. The skeleton 2 is a high chromium cast iron skeleton, which includes a frame 3 , The frame 3 is arc-shaped, the frame 3 is provided with cone rods 4, the cone rods 4 are equally spaced on the arc-shaped bottom surface of the frame 3, the larger diameter end of the cone rod 4 is connected to the frame 3, the diameter The small end faces the front end of the hammer body 1; the cross section of the frame is trapezoidal, the length of the upper bottom side is less than the length of the lower bottom side, and the upper bottom side is connected with a cone rod 4. The hammer body 1 is a low-carbon multi-element low-alloy steel hammer body.

[0065] The framework of high chromium cast iron is hypereutectic high chromium cast iron, and the weight percentage of each ch...

Embodiment 2

[0098] Such as Figure 4 , Figure 5 As shown, a composite hammer with a mass of 300 kg is produced, in which the mass of the skeleton 2 is 6% of the mass of the composite hammer, that is, the mass of the skeleton 2 is 18 kg. According to the shape and size of the hammer, the frame 3 of the skeleton 2 is designed as Four rows, each row has nineteen cone rods4.

[0099] The manufacturing process is as follows:

[0100] The first step is the preparation of skeleton 2;

[0101] a. Ingredients

[0102] According to the chemical composition of the high chromium cast iron framework, the weight percentage of raw materials is determined as: scrap steel: 25%; pig iron: 35%; ferrochrome: 35%; ferromanganese: 1.6%; ferromolybdenum: 1.5%; ferro-titanium: 0.8%; Copper: 1%; Aluminum: 0.1%;

[0103] b, shape

[0104] The high chromium cast iron skeleton is cast in lost foam. First, the model of skeleton 2 is made of polystyrene plastic, and the outer surface of t...

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Abstract

The invention belongs to the technical field of preparation of hammer heads widely used in the fields of crushing, pulverizing and the like, in particular to a combined hammer head and a manufacturing process thereof. The combined hammer head comprises a framework and a hammer block, wherein the framework is arranged in the hammer block, and is adjacent to the front end of the hammer block; the framework is a high-chromium iron framework and comprises a frame; the frame is in a circular arc shape and is provided with conical rods; the conical rods are distributed on the circular-arc bottom surface of the frame at equal intervals; and the hammer block is a low-carbon multivariant low alloy steel hammer block. The invention is characterized in that the framework is arranged in the hammer block and is obtained by carrying out integral casting on hypereutectic high-chromium iron; the framework and the hammer block are subject to composite casting; the hammer block adopts low-carbon multivariant low alloy steel, and has higher strength and favorable impact toughness; the abrasion resistant framework has excellent abrasive resistance; and the invention gives full play to the advantages of the two materials, thereby obviously prolonging the service life of the hammer head of a crusher and reducing the equipment maintenance rate; and the process is simple, the production efficiency ishigh, and the economic benefits are considerable.

Description

Technical field: [0001] The invention belongs to the field of preparation of hammerheads widely used in technical fields such as crushing and grinding, and in particular relates to a composite hammerhead and a manufacturing process thereof. Background technique: [0002] With the development of mining, cement, building materials, metallurgy, urban construction and other industries, a large number of materials need to be crushed. Hammer crusher is commonly used crushing equipment. Among them, the hammerhead is its main wearing part, and the number of hammerheads consumed for crushing is countless every year. [0003] In the coarse crushing area, the hammer head is subjected to high-stress impact wear and impact fatigue wear during the working process; in the fine crushing area, the hammer head is subjected to micro-cutting of smaller materials during the working process. The failure forms of the hammer head mainly include two forms of wear and fracture, so there are two m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C13/28C22C38/60C22C38/54B22D18/06B22D23/04C21D1/18
Inventor 余健谷新波宋煜薛振华汪远申少辉
Owner ZHENGZHOU HI TECH MECHANICAL IND
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