CN101823011A - Stud type roll surface structure for rolling mill and method for replacing stud - Google Patents
Stud type roll surface structure for rolling mill and method for replacing stud Download PDFInfo
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- CN101823011A CN101823011A CN 201010136778 CN201010136778A CN101823011A CN 101823011 A CN101823011 A CN 101823011A CN 201010136778 CN201010136778 CN 201010136778 CN 201010136778 A CN201010136778 A CN 201010136778A CN 101823011 A CN101823011 A CN 101823011A
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- post nail
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Abstract
The invention discloses a stud type roll surface structure for a rolling mill and a method for replacing studs. The stud type roll surface structure comprises a roll sleeve and studs, wherein the studs (2) are in staggered arrangement and fixed in stud holes which are formed on the outer surface of the roll sleeve (1) through adhesives (3) in a form of clearance fit assembly. In the method for replacing the studs, when the studs (2) are damaged, the studs (2) are heated to the temperature of between 180 and 200 DEG C, and the adhesives (3) lose adhesiveness. Due to the adoption of the clearance fit between the studs (2) and the stud holes of the roll surface, the damaged studs (2) are easily pulled out and replaced by new studs (2), and the roll sleeve (1) can be continuously used. The stud type roll surface structure for the rolling mill has the characteristics of high hardness, deep hard layer, strong abrasion resistance, replaceable studs, long service life, and the like, and can reduce the equipment maintenance cost and the equipment maintenance time, and effectively improve the equipment operation rate.
Description
Technical field
The present invention relates to the roll-in milling equipment, be particularly useful for the post nail formula roll surface structure and the post nail replacing method of a kind of roll-in mill of the various brittle materials of industrial circle grinding such as metallurgy, mine, coal, chemical industry.
Background technology
At present, two compression rollers that rotate in opposite directions of roll-in mill produce huge extruding force material are pulverized under the hydraulic system effect.The roll surface life-span of compression roller is related to operation rate and maintenance cost.Between post nail that the post nail formula roll surface structure of tradition roll-in mill is adopted and the roll surface post hole is interference fit, the post nail weares and teares, fractureing is difficult to extract when the post hole, be unfavorable for the independent replacing of post nail and the sustainable use of roller shell, even have to whole roller shell is scrapped, increased the cycle and the expense of maintenance of equipment.
Summary of the invention
For solving the problem that prior art exists, the object of the present invention is to provide a kind of post nail formula roll surface structure and post nail replacing method of roll-in mill.Have the hardness height, characteristics such as hard formation is dark, erosion resistance is strong, post nail is replaceable, long service life, can reduce the maintenance of equipment expense, reduce the maintenance of equipment time, effectively improve operation rate.
For realizing aforesaid goal of the invention, the present invention adopts technical scheme as described below:
A kind of post nail formula roll surface structure of roll-in mill, comprising: roller shell, post nail, described post nail are staggered by bonding agent with the matched in clearance assembling form and are fixed in the post hole of roller shell outer surface setting.
The post nail formula roll surface structure of described a kind of roll-in mill, roller shell adopts superior alloy steel, and through Overheating Treatment, makes roller shell surface hard formation hardness reach HRC55, and the hard formation degree of depth reaches more than the 20mm, improves the roll surface erosion resistance of comminuting matter under high pressure.
The post nail formula roll surface structure of described a kind of roll-in mill, the post nail that roll surface is inlayed adopts the high-strength wearable carbide alloy, the hardness height, erosion resistance is strong.
The post nail formula roll surface structure of described a kind of roll-in mill, described bonding agent loses cementability when being 180-200 ℃.
A kind of post nail replacing method of post nail formula roll surface structure of roll-in mill, when the post nail damages, in the time of this post nail can being heated to 180-200 ℃, make bonding agent lose viscosity, because what adopted in the post nail hole of post nail and roll surface is matched in clearance, be easy to it is extracted and be replaced with new post nail, roller shell then can continue to use; And the height of post nail is easy to remain on level comparatively uniformly, and roll surface also obtains protection to a certain degree, because the post nail is easy to maintenance, thereby prolongs life-span of roll surface.
Because adopt aforesaid technical scheme, the present invention has superiority as described below:
A kind of post nail formula roll surface structure of roll-in mill and post nail replacing method are applicable to industrial circle brittle mineral grinding operations such as metallurgy, mine, coal, chemical industry.Its post nail formula roll surface structure is made up of roller shell, high-strength wearable alloy column nail, working roll mask of the present invention have hardness height, erosion resistance by force, characteristics such as long service life.
The post of roll-in mill is followed closely the formula roll surface, has increased the frictional force of roll surface and storeroom, and the performance of roll surface interlock material is significantly improved, and has improved the mill efficiency of roll-in mill.Simultaneously; the post nail fixed form that the post nail formula roll surface structure of this roll-in mill is adopted is than existing post nail formula roll surface structure; make the post nail be convenient to change, thereby roll surface is effectively protected, roller shell can continue to use; the replacement cycle of roller shell is prolonged greatly; and prolonged the life-span,, reduced the roll surface maintenance cost because the post nail is easy to maintenance; reduce maintenance time and maintenance cost, improved operation rate effectively.
Description of drawings
Fig. 1 is the post nail formula roll surface structural representation of roll-in mill;
Fig. 2 is the post nail formula roll surface structure partial schematic diagram of roll-in mill;
Fig. 3 is that the A-A of Fig. 2 is to profile;
Among the figure: the 1-roller shell; 2-post nail; The 3-bonding agent;
The specific embodiment
As shown in Figure 1: a kind of post nail formula roll surface structure of roll-in mill, comprising: roller shell, post nail, described post nail (2) are staggered by bonding agent (3) with the matched in clearance assembling form and are fixed in the post hole of roller shell (1) outer surface setting.Be that post nail is implanted in the roller shell post hole with matched in clearance, the two strong bonded be integral, and this high strength bonding agent can lose cementability in 180-200 ℃, make the replacing easily of post nail again with a kind of high-strength adhesive (3).Described roller shell (1) adopts high-quality quenched and tempered steel, and heat-treats in process, makes the surperficial hard formation hardness of roller shell (1) reach HRC55, and the hard formation degree of depth reaches more than the 20mm, improves the roll surface erosion resistance of comminuting matter under high pressure.The post nail (2) that described roll surface is inlayed adopts the high-strength wearable Hardmetal materials, the hardness height, and erosion resistance is strong.
A kind of post nail replacing method of post nail formula roll surface structure of roll-in mill, when post nail (2) damages, in the time of this post nail (2) can being heated to 180-200 ℃, make bonding agent (3) lose viscosity, because what adopted in the post of post nail (2) and roll surface nail hole is matched in clearance, be easy to damage post nail (2) is extracted, and be replaced with new post nail (2), roller shell (1) then can continue to use; And the height of post nail (2) is easy to remain on height comparatively uniformly, thereby prevents that bulk materials from directly impacting roll surface, is protected roll surface; Because post nail (2) is easy to maintenance, should prolong the life-span of roll surface.
During work, grind novel post nail formula roll surface by the roll-in that roller shell (1) and high-pressure anti-wear alloy column nail (2) are formed, promptly high-pressure anti-wear alloy column nail (2) gathers on roller shell (1) surface with the form of being staggered; During comminuting matter, be full of material between post nail (2) and form spontaneous formula backing strap, storeroom is pulverized mutually, avoid roll surface directly to contact material and bear sharp wear, prevent that bulk materials from directly impacting roll surface, and bear material and be parallel to the strong motion wearing and tearing of roll surface, abrasion that wearing and tearing mainly occur on the very strong high-pressure anti-wear alloy column nail (2) of erosion resistance, the roll surface working life is increased substantially, can effectively guarantee operation rate.Simultaneously, after post nail (2) damages, can be heated and be fit to temperature and make bonding agent (3) lose viscosity, be matched in clearance and post nail (2) itself adopts, is easy to it is extracted and be replaced with new post nail (2), and roller shell (1) then can continue to use.In addition, because post nail (2) is easy to maintenance, the height of post nail (2) is easy to remain on level comparatively uniformly, and roll surface also obtains protection to a certain degree, thereby makes the life-span of roll surface be able to very big prolongation.
Claims (5)
1. the post of a roll-in mill is followed closely formula roll surface structure, comprising: roller shell, post nail is characterized in that: described post nail (2) is staggered by bonding agent (3) with the matched in clearance assembling form and is fixed in the post hole of roller shell (1) outer surface setting.
2. the post nail formula roll surface structure of a kind of roll-in mill according to claim 1, it is characterized in that: roller shell (1) adopts high-quality quenched and tempered steel, and through Overheating Treatment, make the surperficial hard formation hardness of roller shell (1) reach HRC55, and the hard formation degree of depth reaches more than the 20mm, improves the roll surface erosion resistance of comminuting matter under high pressure.
3. the post nail formula roll surface structure of a kind of roll-in mill according to claim 1, it is characterized in that: the post nail (2) that roll surface is inlayed adopts the high-strength wearable alloy, the hardness height, erosion resistance is strong.
4. the post nail formula roll surface structure of a kind of roll-in mill according to claim 1, it is characterized in that: described bonding agent (3) loses the high strength bonding agent of cementability when being 180-200 ℃, is convenient to change the post nail of damage.
5. the post of implementing a kind of roll-in mill of the described roll surface structure of claim 1 is followed closely the post nail replacing method of formula roll surface structure, it is characterized in that: when post nail (2) damages, in the time of this post nail (2) can being heated to 180-200 ℃, make bonding agent (3) lose viscosity, because what adopted in the post of post nail (2) and roll surface nail hole is matched in clearance, be easy to damage post nail (2) is extracted, and be replaced with new post nail (2), roller shell (1) then can continue to use; And the height of post nail (2) is easy to remain on height comparatively uniformly, thereby prevents that bulk materials from directly impacting roll surface, is protected roll surface; Because post nail (2) is easy to maintenance, should prolong the life-span of roll surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136778 CN101823011A (en) | 2010-03-23 | 2010-03-23 | Stud type roll surface structure for rolling mill and method for replacing stud |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010136778 CN101823011A (en) | 2010-03-23 | 2010-03-23 | Stud type roll surface structure for rolling mill and method for replacing stud |
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| CN101823011A true CN101823011A (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010136778 Pending CN101823011A (en) | 2010-03-23 | 2010-03-23 | Stud type roll surface structure for rolling mill and method for replacing stud |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205256A (en) * | 2011-01-31 | 2011-10-05 | 成都利君实业股份有限公司 | Roll surface of rolling machine and assembly and maintenance method thereof |
| CN102397802A (en) * | 2011-11-18 | 2012-04-04 | 中信重工机械股份有限公司 | Novel squeeze roller type roller surface structure |
| CN103285969A (en) * | 2013-04-25 | 2013-09-11 | 中信重工机械股份有限公司 | Side insert of roller shell of high-pressure roller mill and replacing method |
| CN104148140A (en) * | 2014-07-22 | 2014-11-19 | 中信重工机械股份有限公司 | Screw replacement device and method for rapidly replacing roller surface stud screws of high-pressure roller mill |
| CN105413804A (en) * | 2015-12-03 | 2016-03-23 | 中钢集团安徽天源科技股份有限公司 | High-pressure grinding roller roll surface structure and manufacturing method |
| CN108672013A (en) * | 2018-03-29 | 2018-10-19 | 安徽马钢张庄矿业有限责任公司 | A kind of quasi- static pressure flour high pressure roller surface structure |
| WO2020143997A1 (en) * | 2019-01-09 | 2020-07-16 | Thyssenkrupp Industrial Solutions Ag | Grinding roller having peripheral elements |
| CN114559403A (en) * | 2022-02-25 | 2022-05-31 | 中信重工机械股份有限公司 | Nail puller for quickly replacing roller surface stud of stud roller and nail replacing method |
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| CN1894044A (en) * | 2003-11-22 | 2007-01-10 | Khd洪保德韦达克有限公司 | Grinding roll for pressure grinding granular material |
| CN201049304Y (en) * | 2007-06-01 | 2008-04-23 | 洛阳中原矿山机械制造有限公司 | Pressure roller structure for high-pressure roller crusher |
| CN101394931A (en) * | 2006-03-04 | 2009-03-25 | Khd洪保德韦达克有限公司 | Hard elements for the autogenous wear protection of roller surfaces |
| CN201613150U (en) * | 2010-03-23 | 2010-10-27 | 中信重工机械股份有限公司 | Novel tack-type roller surface structure |
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- 2010-03-23 CN CN 201010136778 patent/CN101823011A/en active Pending
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| CN1894044A (en) * | 2003-11-22 | 2007-01-10 | Khd洪保德韦达克有限公司 | Grinding roll for pressure grinding granular material |
| CN101394931A (en) * | 2006-03-04 | 2009-03-25 | Khd洪保德韦达克有限公司 | Hard elements for the autogenous wear protection of roller surfaces |
| CN201049304Y (en) * | 2007-06-01 | 2008-04-23 | 洛阳中原矿山机械制造有限公司 | Pressure roller structure for high-pressure roller crusher |
| CN201613150U (en) * | 2010-03-23 | 2010-10-27 | 中信重工机械股份有限公司 | Novel tack-type roller surface structure |
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| 《新世纪水泥导报》 20021231 刘德庆 辊压机辊面技术发展根况（二） 第12页左栏第4-13行，附图10 1-5 , 第2期 2 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205256A (en) * | 2011-01-31 | 2011-10-05 | 成都利君实业股份有限公司 | Roll surface of rolling machine and assembly and maintenance method thereof |
| CN102205256B (en) * | 2011-01-31 | 2015-04-01 | 成都利君实业股份有限公司 | Roll surface of rolling machine and assembly and maintenance method thereof |
| CN102397802A (en) * | 2011-11-18 | 2012-04-04 | 中信重工机械股份有限公司 | Novel squeeze roller type roller surface structure |
| CN102397802B (en) * | 2011-11-18 | 2015-09-09 | 中信重工机械股份有限公司 | A kind of Novel squeeze roller type roller surface structure |
| CN103285969A (en) * | 2013-04-25 | 2013-09-11 | 中信重工机械股份有限公司 | Side insert of roller shell of high-pressure roller mill and replacing method |
| CN103285969B (en) * | 2013-04-25 | 2016-03-30 | 中信重工机械股份有限公司 | A kind of side insert of roller sleeve of high pressure roller grinder and replacing options |
| CN104148140A (en) * | 2014-07-22 | 2014-11-19 | 中信重工机械股份有限公司 | Screw replacement device and method for rapidly replacing roller surface stud screws of high-pressure roller mill |
| CN105413804A (en) * | 2015-12-03 | 2016-03-23 | 中钢集团安徽天源科技股份有限公司 | High-pressure grinding roller roll surface structure and manufacturing method |
| CN108672013A (en) * | 2018-03-29 | 2018-10-19 | 安徽马钢张庄矿业有限责任公司 | A kind of quasi- static pressure flour high pressure roller surface structure |
| WO2020143997A1 (en) * | 2019-01-09 | 2020-07-16 | Thyssenkrupp Industrial Solutions Ag | Grinding roller having peripheral elements |
| CN114559403A (en) * | 2022-02-25 | 2022-05-31 | 中信重工机械股份有限公司 | Nail puller for quickly replacing roller surface stud of stud roller and nail replacing method |
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Application publication date: 20100908 |