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Combined type mechanically crushing machine hammer and manufacturing method thereof

A combined type and crusher technology, which is applied in the direction of manufacturing tools, casting molding equipment, casting mold components, etc., can solve the problems of wasting hammer handle metal materials, difficulty in recycling and remelting, and high labor intensity, and achieves convenient recycling and remelting. The effect of solving the harsh production environment and reducing labor intensity

Inactive Publication Date: 2010-10-20
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the work of dismantling a large number of hammerheads is not only labor-intensive and time-consuming, but also labor-intensive.
And the unworn hammer handle metal material is wasted, and the worn hammer head is replaced at the same time. If it is an inlaid casting of two materials, the mass fraction of the chemical composition is very different, which brings difficulties to recycling and remelting.

Method used

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  • Combined type mechanically crushing machine hammer and manufacturing method thereof
  • Combined type mechanically crushing machine hammer and manufacturing method thereof
  • Combined type mechanically crushing machine hammer and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: Production of a hammer head with a unit weight of 350N. The head of the hammer head is made of high-chromium cast iron lost foam casting. The mass fraction of the chemical composition of the high-chromium cast iron is: C 2.92%, Si 0.56%, S 0.03 %, P 0.04%, Mn 0.81%, Cu 0.48%, Cr 24.27%, Mo 0.42%, V 0.12%, W 0.56%, RE 0.092%, Fe 69.698%.

[0031] The shank of the hammer head is made of high manganese steel lost foam casting. The mass fraction of high manganese steel chemical composition is: C 1.16%, Mn 13.06%, Si 0.52%, Cr 1.91%, S 0.03%, P 0.04% , RE 0.19%, Fe 83.09%;

[0032] The manufacturing method of hammer head of the present invention is: this manufacturing method comprises the production process of head high chromium cast iron and shank high manganese steel, lost foam casting process and heat treatment process and the mechanical assembly process of hammer head; Wherein, the high chromium cast iron The production process is as follows: put ordinary ...

Embodiment 2

[0038] Embodiment 2: the production of a hammer head with a unit weight of 250N, the head of the hammer head is cast from high-chromium cast iron, and the mass fractions of the chemical composition of the high-chromium cast iron are: C3.12%, Si 0.66%, S 0.04% , P 0.06%, Mn 1.07%, Cu 0.57%, Cr 25.82%, Mo 0.54%, V 0.18%, W 0.67%, RE 0.12%, Fe 67.15%.

[0039] The handle of the hammer head is cast from high manganese steel. The mass fraction of chemical composition of high manganese steel is: C 1.19%, Mn 13.56%, Si 0.69%, Cr 2.23%, S 0.03%, P 0.06%, RE 0.21%, Fe 82.03%;

[0040] The manufacturing method of hammer head of the present invention, this manufacturing method comprises the production process of head high chromium cast iron and shank high manganese steel, lost foam casting process and heat treatment process and the mechanical assembly process of hammer head; Wherein, the production of high chromium cast iron The process is as follows: Add ordinary steel scrap and pig ir...

Embodiment 3

[0047] Embodiment 3: the production of a hammer head with a unit weight of 150N, the head of the hammer head is cast from high-chromium cast iron, and the mass fractions of the chemical composition of the high-chromium cast iron are: C3.28%, Si0.74%, S0.05% , P 0.07%, Mn 1.22%, Cu 0.69%, Cr 26.76%, Mo 0.63%, V 0.21%, W 0.75%, RE 0.13%, Fe 65.47%.

[0048] The shank of the hammer head is cast from high manganese steel. The mass fraction of chemical composition of high manganese steel is: C 1.27%, Mn 14.28%, Si 0.84%, Cr 2.43%, S 0.05%, P 0.06%, RE 0.25%, Fe 80.82%;

[0049]The manufacturing method of hammer head of the present invention, this manufacturing method comprises the production process of head high chromium cast iron and shank high manganese steel, lost foam casting process and heat treatment process and hammer head assembly process; Wherein, the production process of high chromium cast iron Method: add ordinary steel scrap and pig iron into the intermediate frequenc...

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Abstract

The invention discloses a combined type mechanically crushing machine hammer and a manufacturing method thereof. The hammer comprises a head part (3) and a handle part (1) which are mechanically combined for forming the hammer, the head part (3) is formed by high-chromium cast iron lost foam casting, the handle part (1) is formed through high-manganese steel lost foam casting, an installing hole (5) connected with a circular disc of a crushing machine is arranged above the handle part (1), a rabbet (4) is arranged under the handle part (1), the head part (3) is provided with a mortice (8) matched with the rabbet (4) of the handle part, and the handle part (1) and the head part (3) are connected through the mutually matched rabbet (4) and the mortice (8) for forming the integral hammer. The hammer of the invention has the advantages of simple manufacture, wear resistance, good toughness, fast replacement of the head part, repeated use of the handle part, production efficiency improvement and metal material saving. The invention is particularly suitable for manufacturing reversible hammer type crushing machine hammers.

Description

technical field [0001] The invention relates to a crusher hammer, in particular to a mechanical combined crusher hammer and a manufacturing method thereof. Background technique [0002] Hammer crushers are mainly used in metallurgy, mining, building materials, chemical and electric power industries for medium and fine crushing of ore, limestone, coal or other brittle materials below medium hardness. However, the hammer head of the crusher is a vulnerable part that is easy to wear, and its material selection is also difficult. Especially for medium and small hammer heads with a unit weight between 150N and 350N, when they are used to withstand medium impact force and crush medium-hard materials, the choice of hammer head material is very contradictory. If high manganese steel is used, due to insufficient impact hardening, the surface hardness is low, the hammer head wears quickly and the life is short; if high chromium cast iron is used, it has poor toughness, is easy to bre...

Claims

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Application Information

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IPC IPC(8): B02C13/28C22C37/10C22C38/38C22C33/08C22C33/04C21C7/06C21C7/00B22C9/04
Inventor 卓荣明
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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