CN103658547A - Wrap-cast shovel tooth of electric shovel and casting technology - Google Patents
Wrap-cast shovel tooth of electric shovel and casting technology Download PDFInfo
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- CN103658547A CN103658547A CN201210357397.0A CN201210357397A CN103658547A CN 103658547 A CN103658547 A CN 103658547A CN 201210357397 A CN201210357397 A CN 201210357397A CN 103658547 A CN103658547 A CN 103658547A
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Abstract
The invention relates to a wrap-cast shovel tooth of an electric shovel and a casting technology. The wrap-cast shovel tooth comprises a dead head, an anti-abrasion alloy block and a shovel tooth. The anti-abrasion alloy block is pre-arranged at a cast tooth tip; the plane of the anti-abrasion alloy block tightly leans against a cast and is fixed by a core support; a distance between each of two sides of the anti-abrasion alloy block and each of the upper part and the lower part of a molded cavity is 10-15mm; after a box is closed, a pouring position is obtained according to the fact that the lower plane of the cast and the horizontal plane form an included angle of 5-10 degrees; in the width direction of a sand box, one side of the dead head is higher than the other side of the sand box; in the length direction of the sand box, the tip of the shovel tooth is higher than the other side of the sand box. The technological process is simple; the working performance is reliable; the production cost is low; the service life is long; the cutting edge of the wrap-cast anti-abrasion alloy block shovel tooth is high in self-abrasion performance. An experiment shows that a surfacing layer is difficult to peel off when hard materials are loaded, and the power consumption caused by the work of the electric shovel is reduced.
Description
Technical field: the present invention relates to a kind of bag casting teeth and casting technique of power shovel, specifically by casting technique by prefabricated wear-resisting alloy block Bao Zhu at power shovel groundwork position, to improve its service life, belong to casting technology field.
Background technology: power shovel is the main loading machine of opencut, and the teeth main vulnerable part that is it, general teeth only has 3～4 weeks service life, power shovel operating area complex geologic conditions, lithology hardness is high, teeth is in operation process, bear shock and the wearing and tearing of material, so working environment very severe of teeth, a large amount of consumption of material have been caused, maintenance cost and energy resource consumption have been increased, according to statistics, 2 cubic metres of above large-scale mine excavators that China is on active service at present have 2000～2500, the direct economic loss of bucket tooth reaches about 3,000 ten thousand yuan/year, meanwhile, because of device damage, shut down, stop production and cause indirect economic loss larger, production efficiency and economic benefit have been had a strong impact on, in order to improve the service life of teeth, Chinese scholars is paid much attention to this and has been carried out large quantity research, teeth is much to adopt potassium steel manufacture at present, by add a small amount of alloying element in potassium steel, make to obtain its service life certain raising, but still undesirable, adopt low-alloy steel to manufacture teeth also many, in order to guarantee its toughness, general hardness is lower, therefore service life is also undesirable, overlaying method is the crown position built-up welding one deck high hardness alloy at potassium steel or low-alloy steel teeth, improve a lot service life, but this comparison of processes is complicated, and while loading harder material, overlay cladding easily peels off.
Summary of the invention: the object of the invention is to overcome above-mentioned shortcoming, a kind of bag casting teeth and casting technique of power shovel are provided, it has mainly solved employing low-alloy steel and has manufactured teeth, in order to guarantee its toughness, hardness is low, service life is undesirable and at crown portion built-up welding one deck high hardness alloy of potassium steel or low-alloy steel teeth, although improved service life, but process is complicated, while loading harder objuct material, overlay cladding such as easily peels off at the problem, the object of the present invention is achieved like this, casting mold adopts flat doing tiltedly to water, rising head is located at teeth spear thermojunction place, wear-resisting alloy block is preset at casting mold crown place, the plane of wear-resisting alloy block is near casting mold, with stud, fix, two back gauge die cavities of wear-resisting alloy block are each 10-15mm up and down, after mould assembling, its pouring position is that casting mold lower plane becomes 5-10 degree angles with horizontal plane, and at sandbox width, rising head one side is higher than sandbox opposite side, sandbox length direction, and teeth point place is higher than sandbox opposite side.This technical process is simple, reliable working performance, and production cost is low, high life, the cutting edge of bag casting wear-resisting alloy block teeth has good self-grinding, our experiments show that, while loading harder material, overlay cladding is incrust, the power consumption while having reduced power shovel work.
Accompanying drawing explanation:
Accompanying drawing 1 is the front view of the bag casting teeth of a kind of power shovel of the present invention.
Accompanying drawing 2 is upward views of the bag casting teeth of a kind of power shovel of the present invention.
Accompanying drawing 3 is left views of the bag casting teeth of a kind of power shovel of the present invention.
Accompanying drawing 4 is that the A of bag casting teeth of a kind of power shovel of the present invention is to figure.
1-rising head, 2-wear-resisting alloy block, 3-teeth
The specific embodiment: describe most preferred embodiment of the present invention in detail below in conjunction with accompanying drawing, it comprises that rising head 1, wear-resisting alloy block 2, teeth 3 form, casting mold adopts flat doing tiltedly to water, rising head 1 is located at teeth 3 spear thermojunction places, wear-resisting alloy block 2 is preset at casting mold crown place, and wear-resisting alloy block 2 one planes, near casting mold, are fixed with stud, two back gauge die cavities of wear-resisting alloy block 2 are each 10-15mm up and down, to guarantee that molten steel can be fully coated, after mould assembling, its pouring position is, casting mold lower plane becomes 5-10 degree angles with horizontal plane, at sandbox width, rising head 1 one sides are higher than sandbox opposite side, when cast, molten steel will flow to wear-resisting alloy block 2 directions like this, can make wear-resisting alloy block 2 obtain sufficient preheating, wear-resisting alloy block 2 is coated preferably, sandbox length direction, teeth point place is higher than sandbox opposite side, when cast, molten steel flows the end to teeth like this, to form obvious consecutive solidification, the foundry goods that favourable acquisition is fine and close, when molten steel is full of after die cavity, wear-resisting alloy block 2 just by Bao Zhu in teeth.
Claims (1)
1. the bag of power shovel is cast teeth and a casting technique, and it comprises that rising head (1), wear-resisting alloy block (2), teeth (3) form, and is characterized in that:
A. casting mold adopts flat doing tiltedly to water, rising head (1) is located at teeth (3) spear thermojunction place, and wear-resisting alloy block (2) is preset at casting mold crown place, and the plane of wear-resisting alloy block (2) is near casting mold, with stud, fix, two back gauge die cavities of wear-resisting alloy block (2) are each 10-15mm up and down;
B. after mould assembling, its pouring position is that casting mold lower plane becomes 5-10 degree angles with horizontal plane, and at sandbox width, rising head (1) one side is higher than sandbox opposite side, sandbox length direction, and teeth (3) point place is higher than sandbox opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210357397.0A CN103658547A (en) | 2012-09-24 | 2012-09-24 | Wrap-cast shovel tooth of electric shovel and casting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210357397.0A CN103658547A (en) | 2012-09-24 | 2012-09-24 | Wrap-cast shovel tooth of electric shovel and casting technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103658547A true CN103658547A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210357397.0A Pending CN103658547A (en) | 2012-09-24 | 2012-09-24 | Wrap-cast shovel tooth of electric shovel and casting technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN103658547A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185545A (en) * | 1983-04-08 | 1984-10-22 | Naigai Mariaburu Kk | Casting method |
| CN1670315A (en) * | 2004-03-19 | 2005-09-21 | 洛阳市钢峰铸造有限公司 | Integral casting alloy steel shovel edge plate for loader and its manufacturing process and device |
| CN102764680A (en) * | 2012-07-12 | 2012-11-07 | 中建材宁国新马耐磨材料有限公司 | Impact crusher plate hammer and manufacturing method thereof |
-
2012
- 2012-09-24 CN CN201210357397.0A patent/CN103658547A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185545A (en) * | 1983-04-08 | 1984-10-22 | Naigai Mariaburu Kk | Casting method |
| CN1670315A (en) * | 2004-03-19 | 2005-09-21 | 洛阳市钢峰铸造有限公司 | Integral casting alloy steel shovel edge plate for loader and its manufacturing process and device |
| CN102764680A (en) * | 2012-07-12 | 2012-11-07 | 中建材宁国新马耐磨材料有限公司 | Impact crusher plate hammer and manufacturing method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 李鹏志等: "破碎机锤头双金属复合铸造工艺的研究进展", 《金属矿山》 * |
| 沈大东，王新明: "小直径磨球的倾斜铸造工艺", 《热加工工艺》 * |
| 沈大东等: "低合金奥贝钢包铸高铬铸铁锤头的研制", 《热加工工艺》 * |
| 程巨强: "高锰钢铲齿及铲唇铸件断裂和开裂的防止", 《工程机械》 * |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140326 |