CN102837945B - A kind of rotary drum at tail of scraper - Google Patents
A kind of rotary drum at tail of scraper Download PDFInfo
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- CN102837945B CN102837945B CN201210363847.7A CN201210363847A CN102837945B CN 102837945 B CN102837945 B CN 102837945B CN 201210363847 A CN201210363847 A CN 201210363847A CN 102837945 B CN102837945 B CN 102837945B
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Abstract
The invention discloses a kind of rotary drum at tail of scraper, for the barrel-like structure with bearing hole, comprise middle cylinder and the outer cylinder with key way, described middle cylinder is the cylindric of hollow, two ends are equipped with diameter and are greater than middle cylinder and with the outer cylinder of key way, described middle cylinder, outer cylinder and key way thereof form together with the casting of bearing hole disposable integral.Described inblock cast is lost foam casting.Material therefor is ferro-alloy, and the composition of its chemical composition is by weight percentage: carbon 0.01-0.15, silicon 0.2-0.5, manganese 0.4-1.0, nickel 0.5-2.0, chromium 10.0-12.0, vanadium 0.2-0.3, phosphorus 0.01-0.02, sulphur 0.01-0.02, and all the other are iron.Beneficial effect of the present invention is: processing is simple, has saved overhours, has reduced difficulty of processing; Structure is simple, and consumptive material is less, and cost is lower, and weight is lighter; Material therefor creep rupture strength at high temperatures is high, good in oxidation resistance, and thermal stress is good, stable mechanical performance, reliable; The course of processing is safe and reliable, decreases the failed possibility of processing and thing followed cost.
Description
Technical field
The present invention relates to a kind of scrapper conveyor of colliery, particularly relate to a kind of scrapper conveyor integral type aircraft tail cylinder.
Background technology
Aircraft tail cylinder is one of key fitment of slat conveyer.In the prior art, add man-hour carrying out assembling to aircraft tail cylinder, need by middle cylinder and two outer cylinders after machinework, assembly welding together, the aircraft tail cylinder processed like this has that processing is loaded down with trivial details, long in time limit, cost is high, consumptive material mainly with and the shortcoming such as structural stability is poor.Meanwhile, due to aircraft tail cylinder of the prior art, material therefor is commonly common ferro-alloy, and its mechanical characteristics is stable not, reliable, drastically influence use.
Summary of the invention
For the problems referred to above, in order to overcome the deficiencies in the prior art, the invention provides a kind of scrapper conveyor integral type aircraft tail cylinder, this cylinder simplifies the mode of production of product, the features such as processing is simple, the duration is short, cost is low, consumptive material is few and stability is strong that make it have.
The present invention is achieved by the following technical programs.
A kind of rotary drum at tail of scraper, for the barrel-like structure with bearing hole, comprise middle cylinder and the outer cylinder with key way, described middle cylinder is the cylindric of hollow, two ends are equipped with diameter and are greater than middle cylinder and with the outer cylinder of key way, described middle cylinder, outer cylinder and key way thereof form together with the casting of bearing hole disposable integral.Material therefor is ferro-alloy, and the composition of its chemical composition is by weight percentage: carbon 0.01-0.15, silicon 0.2-0.5, manganese 0.4-1.0, nickel 0.5-2.0, chromium 10.0-12.0, vanadium 0.2-0.3, sulphur 0.02-0.03, and all the other are iron.
Described inblock cast is lost foam casting.
The composition of the preferred chemical composition of described ferro-alloy is by weight percentage: carbon 0.01, silicon 0.5, manganese 0.67, nickel 0.5, chromium 10.0, vanadium 0.26, sulphur 0.02, and all the other are iron.
The composition of the preferred chemical composition of described ferro-alloy is by weight percentage: carbon 0.15, silicon 0.2, manganese 0.4, nickel 1.11, chromium 12.0, vanadium 0.2, sulphur 0.03, and all the other are iron.
The composition of the preferred chemical composition of described ferro-alloy is by weight percentage: carbon 0.12, silicon 0.3, manganese 1.0, nickel 2.0, chromium 11.2, vanadium 0.3, sulphur 0.02, and all the other are iron.
Beneficial effect of the present invention is: processing is simple, has saved overhours, has reduced difficulty of processing; Structure is simple, and consumptive material is less, and cost is lower, and weight is lighter; Material therefor creep rupture strength at high temperatures is high, good in oxidation resistance, and thermal stress is good, stable mechanical performance, reliable; The course of processing is safe and reliable, decreases the failed possibility of processing and thing followed cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is front elevation of the present invention;
Fig. 3 is the structural representation of prior art;
Fig. 4 is the front elevation of prior art.
In figure, cylinder in 1-, the outer cylinder of 2-, cylinder in 3-, the outer cylinder of 4-, 41-key way, 5-bearing hole.
Detailed description of the invention
Connection with figures further describes technical scheme of the present invention below, but described in claimed scope is not limited to.
Be the rotary drum at tail of scraper of prior art as shown in Figure 3, Figure 4, be made up of, adding man-hour middle cylinder 1 and outer cylinder 2, need centering cylinder 1 and outer cylinder 2 to process respectively, then assembly welding is to together.Because cylinder in needs 1 and outer cylinder 2 combine well, therefore middle cylinder 1 or outer cylinder 2 need corresponding to shape, waste material and man-hour thus, and easily because welding error causes cost to improve in the middle of processing., because material therefor in prior art is generally common ferro-alloy, easily to rupture, the situation such as oxidation meanwhile, also therefore improve cost.
Provided by the invention a kind of rotary drum at tail of scraper as shown in Figure 1 and Figure 2, for the barrel-like structure with bearing hole 5, comprise middle cylinder 3 and the outer cylinder 4 with key way 41, described middle cylinder 3 is the cylindric of hollow, two ends are equipped with diameter and are greater than middle cylinder 3 and with the outer cylinder 4 of key way, described middle cylinder 3, outer cylinder 4 and key way 41 thereof form together with the casting of bearing hole 5 disposable integral.Because middle cylinder 3, outer cylinder 4 form for disposable integral casting, do not need corresponding to shape, save a large amount of consumptive materials thus, reduce cost, alleviate weight, saved manpower and materials.The composition of the chemical composition of ferro-alloy is by weight percentage: carbon 0.01, silicon 0.5, manganese 0.67, nickel 0.5, chromium 10.0, vanadium 0.26, sulphur 0.02, and all the other are iron.Adopt the ferro-alloy of this composition and ratio, creep rupture strength at high temperatures is high, good in oxidation resistance, thermal stress is good, stable mechanical performance, reliable, but shortcoming is that weldability is poor, therefore adopt lost foam casting disposal molding can well make up this shortcoming, improve durability on the one hand, extend service life, reduce cost from processing, structure two aspect on the other hand, and save overhours, reduce difficulty of processing.
Meanwhile, for obtaining higher intensity, reduce the mechanical wear in use procedure, and reduce costs as far as possible, keep other suitable mechanical performance parameters, the composition of the chemical composition of described ferro-alloy also can be by weight percentage: carbon 0.15, silicon 0.2 simultaneously, manganese 0.4, nickel 1.11, chromium 12.0, vanadium 0.2, sulphur 0.03, all the other are iron.This proportioning intensity is higher, and toughness is lower, and inoxidizability is relatively poor, although reduce the mechanical wear in use procedure, but improves the natural wearing of material.
Therefore, in practical operation, the composition of the chemical composition of best ferro-alloy is by weight percentage: carbon 0.12, silicon 0.3, manganese 1.0, nickel 2.0, chromium 11.2, vanadium 0.3, sulphur 0.02, all the other are iron.
In general, the present invention processes simply, has saved overhours, has reduced difficulty of processing; Structure is simple, and consumptive material is less, and cost is lower, and weight is lighter; Material therefor creep rupture strength at high temperatures is high, good in oxidation resistance, and thermal stress is good, stable mechanical performance, reliable; The course of processing is safe and reliable, decreases the failed possibility of processing and thing followed cost.
Claims (2)
1. a rotary drum at tail of scraper, for the barrel-like structure with bearing hole (5), comprise middle cylinder (3) and the outer cylinder (4) with key way (41), it is characterized in that: what described middle cylinder (3) was hollow is cylindric, two ends are equipped with diameter and are greater than middle cylinder (3) and with the outer cylinder (4) of key way, described middle cylinder (3), outer cylinder (4) and key way (41) thereof form together with bearing hole (5)-secondary property inblock cast, material therefor is ferro-alloy, the composition of its chemical composition is by weight percentage: carbon 0.15, silicon 0.2, manganese 0.4, nickel 1.11, chromium 12.0, vanadium 0.2, sulphur 0.03, all the other are iron.
2. rotary drum at tail of scraper as claimed in claim 1, is characterized in that: described inblock cast is lost foam casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210363847.7A CN102837945B (en) | 2012-09-26 | 2012-09-26 | A kind of rotary drum at tail of scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210363847.7A CN102837945B (en) | 2012-09-26 | 2012-09-26 | A kind of rotary drum at tail of scraper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102837945A CN102837945A (en) | 2012-12-26 |
| CN102837945B true CN102837945B (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210363847.7A Active CN102837945B (en) | 2012-09-26 | 2012-09-26 | A kind of rotary drum at tail of scraper |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UST964003I4 (en) * | 1976-10-06 | 1977-11-01 | Hardenable martensitic stainless steel | |
| CN1260740A (en) * | 1997-06-19 | 2000-07-19 | 阿奇亚斯佩丝阿里特尔尼公司 | Continuous casting process for producing low carbon steel strips and strips obtained with good as cast mechanical properties |
| DE202007017745U1 (en) * | 2007-12-17 | 2009-02-12 | Imro Maschinenbau Gmbh | reel shaft |
| CN201254381Y (en) * | 2008-03-28 | 2009-06-10 | 湖南华南煤矿机械制造有限公司 | Novel drag-flight conveyer tail barrel |
| CN201686288U (en) * | 2010-06-07 | 2010-12-29 | 湖南华南煤矿机械制造有限公司 | Rotary drum at tail of scraper |
| CN202321505U (en) * | 2011-09-28 | 2012-07-11 | 贵州宏狮煤机制造有限公司 | Detachable belt conveyor roller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080003697U (en) * | 2007-02-28 | 2008-09-02 | 권익삼 | Conveyer roller |
-
2012
- 2012-09-26 CN CN201210363847.7A patent/CN102837945B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UST964003I4 (en) * | 1976-10-06 | 1977-11-01 | Hardenable martensitic stainless steel | |
| CN1260740A (en) * | 1997-06-19 | 2000-07-19 | 阿奇亚斯佩丝阿里特尔尼公司 | Continuous casting process for producing low carbon steel strips and strips obtained with good as cast mechanical properties |
| DE202007017745U1 (en) * | 2007-12-17 | 2009-02-12 | Imro Maschinenbau Gmbh | reel shaft |
| CN201254381Y (en) * | 2008-03-28 | 2009-06-10 | 湖南华南煤矿机械制造有限公司 | Novel drag-flight conveyer tail barrel |
| CN201686288U (en) * | 2010-06-07 | 2010-12-29 | 湖南华南煤矿机械制造有限公司 | Rotary drum at tail of scraper |
| CN202321505U (en) * | 2011-09-28 | 2012-07-11 | 贵州宏狮煤机制造有限公司 | Detachable belt conveyor roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102837945A (en) | 2012-12-26 |
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