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Wear-resistant hammer head of hammer crusher with movable installation position and manufacturing method thereof

A technology of hammer crusher and installation location, which is applied in the direction of manufacturing tools, casting molding equipment, casting mold components, etc. It can solve the problems that the material is difficult to meet the wear resistance toughness, the manufacturing process is complicated, and the combination is not firm, so as to solve the problem of production The effect of harsh environment, simple process and light weight

Inactive Publication Date: 2010-12-22
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the end of the hammer head is made of high chromium cast iron and the handle of the hammer head is made of carbon steel or high manganese steel composite hammer head, first, there are problems such as complicated manufacturing process, low production efficiency, poor working environment, and weak combination; It is a large hammer head above 500N, and its end is made of high-chromium cast iron material. The toughness is obviously insufficient, and there may be a risk of fracture and separation at any time. The heavy hammer head should be used on the premise of safety.
[0004] According to the above analysis, it is difficult to choose an ideal material for a hammer head with a single weight of 500-700N. It can be said that a single material is difficult to meet the requirements of both wear resistance and toughness.

Method used

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  • Wear-resistant hammer head of hammer crusher with movable installation position and manufacturing method thereof
  • Wear-resistant hammer head of hammer crusher with movable installation position and manufacturing method thereof
  • Wear-resistant hammer head of hammer crusher with movable installation position and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: The production unit weight is the tup of 500N, and this tup adopts super high manganese steel to form through lost foam casting, and tup comprises end 3 and handle 6, and two work in the end 3 of tup The hard alloy rod 2 is inlaid on the surface, and there are No. 1 installation hole 4 and No. 2 installation hole 5 at a certain distance on the shank 6 of the hammer head; wherein, the mass fraction of the chemical composition of the ultra-high manganese steel is: C 1.14 %, Si 0.48%, S 0.04%, P 0.05%, Mn 17.82%, Cr 2.17%, MO 0.42%, V 0.17%, Ti 0.12%, RE 0.21%, Fe 77.38%; The two working surfaces of 3 are inlaid with YG20 hard alloy rod 2. The alloy rod is a purchased part with a diameter of 4mm. The mass fraction of its chemical composition is: WC 80%, binder 20%, and its performance is: density / t.m -3 13.4~13.8, bending strength / Mpa 2400~2480, hardness (HRA) 80~83.5.

[0016] The manufacture method of hammer head of the present invention, this manufactu...

Embodiment 2

[0017]Embodiment 2: the production of a hammer head with a unit weight of 600N, the hammer head adopts ultra-high manganese steel through lost foam casting, the hammer head includes an end 3 and a handle 6, and two working parts at the end 3 of the hammer head The hard alloy rod 2 is inlaid on the surface, and there are No. 1 installation hole 4 and No. 2 installation hole 5 at a certain distance on the handle 6 of the hammer head; wherein, the mass fraction of the chemical composition of the ultra-high manganese steel is: C 1.19 %, Si 0.56%, S 0.04%, P 0.06%, Mn 18.64%, Cr 2.48%, MO 0.52%, V 0.21%, Ti 0.15%, RE 0.24%, Fe 75.91%; The two working surfaces are inlaid with YG20 hard alloy rod 2. The alloy rod is a purchased part with a diameter of 4.5 mm. The mass fraction of its chemical composition is: WC 80%, binder 20%, and its performance is: density / t.m. -3 13.4~13.8, bending strength / Mpa 2400~2480, hardness (HRA) 80~83.5.

[0018] The manufacture method of hammer head ...

Embodiment 3

[0019] Embodiment 3: produce the hammer head that unit weight is 700N, this hammer head adopts ultra-high manganese steel to form through lost foam casting, hammer head comprises end 3 and shank 6, two working parts at the end portion 3 of hammer head Hard alloy rod 2 is inlaid on the surface, and there are No. 1 installation hole 4 and No. 2 installation hole 5 at a certain distance on the handle 6 of the hammer head; wherein, the mass fraction of the chemical composition of ultra-high manganese steel is: C 1.23 %, Si 0.66%, S 0.05%, P 0.06%, Mn 19.24%, Cr 2.76%, MO 0.58%, V 0.23%, Ti 0.19%, RE 0.29%, Fe 74.71%; The two working surfaces are inlaid with YG20 cemented carbide rod 2. The alloy rod is a purchased part with a diameter of 5mm. The mass fraction of its chemical composition is: WC 80%, binder 20%, and its performance is: density / t.m -3 13.4~13.8, bending strength / Mpa 2400~2480, hardness (HRA) 80~83.5.

[0020] The manufacture method of hammer head of the present in...

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Abstract

The invention discloses a wear-resistant hammer head of a hammer crusher with movable installation position and a manufacturing method thereof. The hammer head is manufactured by super-high manganese as raw material by lost foam casting. The hammer head comprises an end part (3) and a handle part (6); hard alloy bars (2) are cast in the two working surfaces of the end part (3) of the hammer head; and an first installation hole (4) and an second installation hole two (5) are formed on the handle part (6) of the hammer head at a distance. The hammer head has good strength and toughness and high hardness and wear resistance and is applicable to the crusher hammer head with single magnitude between 500 and 700 N. When a certain length of the end part of the hammer head is worn, the installation position is moved and the hammer head can be continuously used, being equivalent to replace a new hammer head, so that the purpose of prolonging the service life of the hammer head is fulfilled.

Description

technical field [0001] The invention relates to a hammer head of a hammer crusher, in particular to a wear-resistant hammer head of a hammer crusher with a movable installation position and a manufacturing method thereof. Background technique [0002] Hammer crusher is a commonly used crushing equipment in mining, metallurgy, building materials, electric power and other industries. It has a large crushing ratio, low energy consumption, uniform output, and is suitable for crushing various brittle materials with medium or lower hardness. However, due to the rapid wear of the hammer head, its application is limited. This problem has become a miserable worry for domestic crushing equipment manufacturers and application manufacturers. Therefore, improving the service life of hammer heads has become an urgent problem to be solved in the crushing industry. [0003] At present, the materials used to manufacture hammer heads with a unit weight of 500N or more and 700N or less mainly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C13/28C22C38/38C22C33/06B22D19/00B22D19/08B22C9/04
Inventor 卓荣明
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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