CN103867646A - Chain with reinforced local abrasion-proof performance - Google Patents
Chain with reinforced local abrasion-proof performance Download PDFInfo
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- CN103867646A CN103867646A CN201410102946.9A CN201410102946A CN103867646A CN 103867646 A CN103867646 A CN 103867646A CN 201410102946 A CN201410102946 A CN 201410102946A CN 103867646 A CN103867646 A CN 103867646A
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- chain
- reinforced
- carrier bar
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- chain link
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Abstract
The invention provides a chain with the reinforced local abrasion-proof performance and belongs to the technical field of metallurgy heating furnace equipment. The chain with the reinforced local abrasion-proof performance comprises three parts, namely a basic section (4), a transition section (5) and a reinforced section (6), wherein each chain link in the reinforced section is additionally provided with 2-50 chain plates, a corresponding pin shaft is correspondingly lengthened according to the thickness of the chain plates and the quantity of the additionally-arranged chain plates, and the lengthened size of the pin shaft is 2-200; the quantity of the chain plates of each chain link of the transition section is determined by progressive integer decrease of the quantity of the chain plates of each chain link of the reinforced section until the quantity of the chain plates of each chain link is consistent with that of the basic section. The chain with the reinforced local abrasion-proof performance has the advantages that the reconstruction expense is low, the service life of the chain is prolonged, normal production and product quality are prevented from being influenced by chain breakage, and the maintenance frequency is reduced.
Description
Technical field
The invention belongs to smelting and heating equipment technical field, particularly relate to a kind of local wear-resisting chain of strengthening.
Background technique
Equipment of Hot Strip Mill Compaction of Heating Furnace Door lifting device, generally by motor and speed reducer band movable sprocket, chain movement, promotes fire door, counterweight counterweight or decline.Oven, in the time of normal transmission steel billet, need be raised fire door one time every 2～3min, treats that high temperature billet steel is pushed in transfer roller, then fire door is put down again on heating furnace cover by chain.Due to the reciprocating work that chain continues under high temperature and strong pulling force effect, often there is chain hinge pin and carrier bar fracture accident.And the tensile strength of wish raising chain extends its working life, conventionally need lifting chain material, increase chain processing technology or strengthen chain model, this will certainly increase very large expense.
Summary of the invention
The object of the present invention is to provide a kind of local wear-resisting chain of strengthening, by increasing the area of contact of the movable carrier bar of strengthening segment and changeover portion and bearing pin, slow down the rate of depreciation of movable carrier bar and bearing pin, to reach the object of the wear resistance that promotes local chain link.
The present invention includes basic segment 4, changeover portion 5, strengthening segment 6 three parts, in strengthening segment, each chain link increases 2-50 piece carrier bar, and corresponding bearing pin is according to the corresponding lengthening of carrier bar quantity of thickness of link plates and increase, and bearing pin lengthens and is of a size of 2-200mm; The quantity of the each chain link carrier bar of changeover portion is successively decreased and is determined with the each chain link carrier bar of strengthening segment number integer, until each chain link carrier bar quantity is consistent with section of foundation.
For the chain elevator structure of Compaction of Heating Furnace Door, because chain breakage position concentrates on the part chain link often contacting with sprocket wheel.Fracture origin main manifestations is 2 points, the one: chain hinge pin circular radial side face constantly weares and teares, and causes the shear strength of bearing pin to reduce, and finally on radial circumference, forms fatigue crack, and progressively spreads to center portion; The 2nd: chain link place carrier bar, due in the wearing and tearing of mal-condition lower stress, causes carrier bar in Compaction of Heating Furnace Door lifting process, and stress is concentrated and generation brittle fracture.
Common for realizing the chain of lifting function, because sprocket wheel only moves reciprocatingly with fixing chain link, this position link wear is serious, and other position chain links are mainly realized pulling force transmission, wear and tear very little.
The design of this chain need to be determined the range that equipment sprocket wheel in service contacts with chain, using this as chain strengthening segment, in chain strengthening segment, each chain link increases 2-50 piece carrier bar, the quantity of the each chain link carrier bar of changeover portion from strengthening segment to section of foundation direction is successively decreased and is determined with the each chain link carrier bar of strengthening segment number integer, until each chain link carrier bar quantity is consistent with section of foundation.
The invention has the advantages that, improvement expenses is low, extends chain working life, avoids because chain breakage impacts normal production and quality of product, reduces frequency of maintenance.
Brief description of the drawings
Fig. 1 is the local wear-resisting chain structural representation of strengthening.Wherein: sleeve 1, carrier bar 2, bearing pin 3, basic segment chain 4, changeover portion chain 5, strengthening segment chain 6
Embodiment
The present invention includes basic segment 4, changeover portion 5, strengthening segment 6 three parts, in strengthening segment, each chain link increases 2-50 piece carrier bar, and corresponding bearing pin is according to the corresponding lengthening of carrier bar quantity of thickness of link plates and increase, and bearing pin lengthens and is of a size of 2-200mm; The quantity of the each chain link carrier bar of changeover portion is successively decreased and is determined with the each chain link carrier bar of strengthening segment number integer, until each chain link carrier bar quantity is consistent with section of foundation.
Taking rolling mill furnace lifting gear as example, the each chain link of chain originally using has 6 blocks of carrier bars.Compaction of Heating Furnace Door lifting chain, furnacing door lifting height is 500mm, whole chain length is 4m, when lifting, only has the long chain of this 500mm to be meshed with support sprocket wheel.
Design strengthening segment carrier bar each chain link increases by 6 blocks of carrier bars on original chain basis, i.e. strengthening segment hunting link (500mm length), and chain plate number is increased to 12 by original 6.The two ends that are connected with section of foundation chain link in strengthening segment again increase changeover portion, and each chain link successively decreases 2, and chain plate number becomes 10,8,6 successively.
Process periodic measurement: the rate of wear of the each carrier bar of strengthening segment, by original 1 month wearing and tearing 2mm, is down to wearing and tearing in 3 months lower than 1mm, and the rate of wear reduces more than 6 times.Original every chain only has short 3-4 month working life, and the local wear-resisting chain life-span of present improved strengthening is more than 2 years.
Finally explanation, above embodiment is only unrestricted so that technological scheme of the present invention to be described.Although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can carry out the amendment in parameter area or be equal to replacement technological scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (1)
1. strengthen local wear-resisting chain for one kind, it is characterized in that, comprise basic segment (4), changeover portion (5), strengthening segment (6) three parts, in strengthening segment, each chain link increases 2-50 piece carrier bar, and corresponding bearing pin is according to the corresponding lengthening of carrier bar quantity of thickness of link plates and increase, and bearing pin lengthens and is of a size of 2-200mm; The quantity of the each chain link carrier bar of changeover portion is successively decreased and is determined with the each chain link carrier bar of strengthening segment number integer, until each chain link carrier bar quantity is consistent with section of foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410102946.9A CN103867646A (en) | 2014-03-19 | 2014-03-19 | Chain with reinforced local abrasion-proof performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410102946.9A CN103867646A (en) | 2014-03-19 | 2014-03-19 | Chain with reinforced local abrasion-proof performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103867646A true CN103867646A (en) | 2014-06-18 |
Family
ID=50906517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410102946.9A Pending CN103867646A (en) | 2014-03-19 | 2014-03-19 | Chain with reinforced local abrasion-proof performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103867646A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2387636A (en) * | 2002-02-27 | 2003-10-22 | Tsubakimoto Chain Co | Connecting link for a chain having an odd number of links |
| DE10330998A1 (en) * | 2003-07-03 | 2005-05-25 | Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co. | Conveyor chain, especially for bucket elevators in cement industry, has inner links with two longitudinal bars connected by cross-bars with raised anti-wear surfaces on sides which face drive wheels and those facing away from them |
| CN1726357A (en) * | 2003-02-11 | 2006-01-25 | 奥蒙德输送带有限责任两合公司 | Plate link chain comprising inner and outer plates consisting of individual plates |
| CN2866976Y (en) * | 2005-10-31 | 2007-02-07 | 溧阳市超强链条制造有限公司 | Roller chain |
| CN101614264A (en) * | 2009-07-13 | 2009-12-30 | 吉林市吉瑞石油机械有限公司 | A kind of chain and sprocket wheel |
| CN101963203A (en) * | 2010-09-26 | 2011-02-02 | 铜陵市华能工矿设备有限责任公司 | Chain for electric chain hoister |
| CN203756858U (en) * | 2014-03-19 | 2014-08-06 | 德龙钢铁有限公司 | Reinforced chain with wear-resisting part |
-
2014
- 2014-03-19 CN CN201410102946.9A patent/CN103867646A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2387636A (en) * | 2002-02-27 | 2003-10-22 | Tsubakimoto Chain Co | Connecting link for a chain having an odd number of links |
| CN1726357A (en) * | 2003-02-11 | 2006-01-25 | 奥蒙德输送带有限责任两合公司 | Plate link chain comprising inner and outer plates consisting of individual plates |
| DE10330998A1 (en) * | 2003-07-03 | 2005-05-25 | Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co. | Conveyor chain, especially for bucket elevators in cement industry, has inner links with two longitudinal bars connected by cross-bars with raised anti-wear surfaces on sides which face drive wheels and those facing away from them |
| CN2866976Y (en) * | 2005-10-31 | 2007-02-07 | 溧阳市超强链条制造有限公司 | Roller chain |
| CN101614264A (en) * | 2009-07-13 | 2009-12-30 | 吉林市吉瑞石油机械有限公司 | A kind of chain and sprocket wheel |
| CN101963203A (en) * | 2010-09-26 | 2011-02-02 | 铜陵市华能工矿设备有限责任公司 | Chain for electric chain hoister |
| CN203756858U (en) * | 2014-03-19 | 2014-08-06 | 德龙钢铁有限公司 | Reinforced chain with wear-resisting part |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140618 |