CN104028945A - Method for repairing broken cylindrical teeth of roller surfaces of high-pressure roller mills - Google Patents
Method for repairing broken cylindrical teeth of roller surfaces of high-pressure roller mills Download PDFInfo
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- CN104028945A CN104028945A CN201410277450.5A CN201410277450A CN104028945A CN 104028945 A CN104028945 A CN 104028945A CN 201410277450 A CN201410277450 A CN 201410277450A CN 104028945 A CN104028945 A CN 104028945A
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- Prior art keywords
- repairing
- post tooth
- roll surface
- post
- tooth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
Abstract
The invention provides a method for repairing broken cylindrical teeth of roller surfaces of high-pressure roller mills. The method includes that a plurality of cylindrical teeth (2) are arranged on the surfaces of the roller surfaces (1) of the high-pressure roller mills, the multiple cylindrical teeth (2) and cylindrical tooth mounting holes (3) in the roller surfaces (1) are mounted in an interference manner, a plurality of recessed positioning holes (4) are formed in the periphery of each broken cylindrical tooth (2) at intervals and form a circle after the cylindrical tooth (2) on the corresponding roller surface (1) is broken, and a repairing cylindrical tooth (5) which is protruded on the surface of the corresponding roller surface (1) is mounted in each positioning hole (4). The method for repairing the broken cylindrical teeth of the roller surfaces of the high-pressure roller mills has the advantages that broken materials can be embedded in the cylindrical teeth among the repairing cylindrical teeth to form material self-lining layers owing to the hardness and the abrasion resistance of the repairing cylindrical teeth, so that the roller surfaces can be guaranteed against being in direct contact with new broken materials, normal usage of the roller surfaces can be guaranteed, the service lives of the roller surfaces can be prolonged, and the broken cylindrical teeth can be repaired quite quickly and conveniently.
Description
Technical field
The invention belongs to Metal mining production, comminution process production equipment technical field, more particularly, relate to a kind of Roller of High post tooth broken teeth method for repairing and mending.
Background technology
High-pressure roller mill metallurgical mine is used widely.High-pressure roller mill result of use is not only relevant with roll-in crushing effect, more with have direct relation in service life of roll surface, conventional roll surface has built-up welding decorative pattern roll surface and hard alloy columnar teeth roll surface at present, the former service life, low less than was 8000 hours, generally at cement industry, use, the latter's life-span length can reach 10000-30000 hours, mainly at metal mine, use, roll surface cost also exceeds the former tens times.The abrasion resistance of post flute profile high pressure grinding rolls face mainly utilizes hardness and the wearability of post tooth hard tungsten carbide, and the rock lining layer that formed by the material embedding cloth that is broken of post between cog, and roll surface does not directly contact new broken material, thereby has extended roll surface service life.Post tooth is hard tungsten carbide, and its hardness and wearability are very high, but its toughness is not enough, fractureing unavoidably aborning to damage occurs, and especially, in the clean situation to Material deironing, once stud is damaged, breaks, rock lining layer loses support, from lining roll surface wearing, does not aggravate.Due to the assembling form employing interference fit of post tooth and roll surface, after fractureing, post tooth has no idea to repair, and some factory adopts non-interference fit, wishes after post tooth fractures, to upgrade post tooth, reaches and extends the roll surface object in service life.In fact, in production, owing to can not finding in time, also can not breaking and change, in the distortion of high pressure lower prop tooth pedestal, the post tooth fractureing cannot be taken out, and post dental transition is changed and is difficult to execute-in-place.Once there are post tooth pedestal wearing and tearing in roll surface, form Shen Ao district, can affect very soon the post tooth of periphery, not only easily there is breakdown and also when pedestal wearing and tearing are darker post tooth easily come off, after large area wearing and tearing generation, to more renew roll surface.The domestic mine post flute profile roller circle service life having was less than 7000 hours.Some mines adopt hardfacing or way are studied for a second time courses one has flunked to manganese steel in abrading section, its case hardness only reaches HRC55 left and right, reaches HRC70 left and right also poor larger compared with hard tungsten carbide, can not reach the wear-resisting of post tooth and rock lining layer, effect is all bad, often for repair welding impact is produced.
Summary of the invention
Technical problem to be solved by this invention is: for the deficiencies in the prior art, provide a kind of simple to operate, can to there is the breakdown of post tooth, repair quickly and easily, guarantee that high-pressure roller mill can continue normal use, extend the Roller of High post tooth broken teeth method for repairing and mending of roll surface whole service life.
Solve above-described technical problem, the technical scheme that the present invention takes is:
The present invention is a kind of Roller of High post tooth broken teeth method for repairing and mending, the roll surface surface of described high-pressure roller mill arranges a plurality of post teeth of arranging by gap, a plurality of post teeth respectively with roll surface on the interference of post tooth installing hole install, after one or more post tooth fractures on described roll surface, surrounding at the post tooth that fractures arranges a plurality of recessed locating holes by gap in one week, and a repairing post tooth that protrudes from roll surface surface is installed respectively in each locating hole.
Between described repairing post tooth and locating hole, interference is installed, and the part that described repairing post tooth protrudes from roll surface surface is set to the structure higher than roll surface surface 3-5mm.
Described repairing post tooth adopts the manufacture of hard tungsten carbide material to form, in the locating hole enclosing at the post tooth rim that fractures, install and repair before post tooth, first the post tooth rim that fractures on roll surface is enclosed to position and carry out repair welding processing, guarantee that this abrading section is consistent with unworn roll surface apparent height.
In the locating hole that the described post tooth rim that fractures encloses, install and repair before post tooth, first rotate roll surface, the position of the post tooth that fractures is turned to horizontal level, and clear up the foreign material of the accumulation at the post tooth position that fractures, then the post tooth rim that fractures on roll surface is enclosed to position and carry out repair welding processing.
In the locating hole that the described post tooth rim that fractures encloses, install and repair before post tooth, first that the shaft coupling being connected with roll surface is stuck, guarantee that the roll surface of high-pressure roller mill can not rotate.
Adopt technical scheme of the present invention, can obtain following beneficial effect:
Roller of High post tooth broken teeth method for repairing and mending of the present invention, after one or more post tooth fractures on the roll surface of high-pressure roller mill, surrounding at the post tooth of described fracture arranges a plurality of recessed locating holes by gap in one week, a repairing post tooth that protrudes from roll surface surface is installed respectively in each locating hole, like this, by repairing hardness and the wearability of post tooth, the rock lining layer that can again be formed by the material embedding cloth that is broken at the post between cog of repairing post tooth, guarantee that roll surface does not directly contact new broken material, thereby can guarantee that roll surface continues normal use, thereby extended roll surface service life.Method of the present invention, forms stable rock lining layer on roll surface surface, extend high-pressure roller mill service life, guarantees that reach 10000-30000 hours its service life.While repairing after the fracture of post tooth, do not need roll surface to separate high-pressure roller mill, repair extremely efficient and convenient yet.
Accompanying drawing explanation
The expressed content of each accompanying drawing of this description and the mark in figure are made to brief description below:
Fig. 1 is the side-looking structural representation after Roller of High of the present invention is modified;
Fig. 2 is the sectional structure schematic diagram of the A-A face of the Roller of High described in Fig. 1;
Reference numeral is: 1, roll surface; 2, post tooth; 3, installing hole; 4, locating hole; 5, repair post tooth; 6, the post tooth that fractures.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and operation principle etc.:
As accompanying drawing 1, shown in accompanying drawing 2, the present invention is a kind of Roller of High post tooth broken teeth method for repairing and mending, roll surface 1 surface of described high-pressure roller mill arranges a plurality of post teeth 2 of arranging by gap, a plurality of post teeth 2 respectively with roll surface 1 on 3 interference of post tooth installing hole install, after one or more post teeth 2 fractures on described roll surface 1, surrounding at the post tooth 2 of described fracture arranges a plurality of recessed locating holes 4 by gap in one week, and each locating hole 4 is interior installs respectively a repairing post tooth 5 that protrudes from roll surface 1 surface.
Between described repairing post tooth 5 and locating hole 4, interference is installed, and the part that described repairing post tooth 5 protrudes from roll surface 1 surface is set to the structure higher than roll surface 1 surface 3-5mm.
In high-pressure roller mill of the present invention, after the post tooth 2 on roll surface 1 surface fractures, need repair roll surface 1, periphery at the post tooth 6 that fractures arranges a plurality of locating holes 4 by perforating technology, then at repairing post tooth 5 of the interior setting-in of each locating hole 4, repairing post tooth 5 protrudes from roll surface 1 surface, and (protrusion height is depending on pedestal abrasion condition, serious wear, protrusion height is high, wear and tear little, protrusion height is low), such object, in order to form the strong point at roll surface, be convenient to again form material from lining on the roll surface of post tooth 6 that fractures, like this, just can be by the new rock lining layer protection roll surface forming, guarantee that roll surface continues normal use.
Described repairing post tooth 5 adopts the manufacture of hard tungsten carbide material to form, fractureing, the post tooth 6 interior installation of locating hole 4 is around repaired before post tooth 5, first the post tooth 6 that fractures on roll surface 1 is carried out to repair welding processing in position around, guarantee that this abrading section is consistent with unworn roll surface 1 apparent height.
The described post tooth 6 interior installation of locating hole 4 around that fractures is repaired before post tooth 5, first rotate roll surface 1, the position of fracture post tooth 2 is turned to horizontal level, and clear up the foreign material of the accumulation at post tooth 6 positions that fracture, then the post tooth 2 that fractures on roll surface 1 is carried out to repair welding processing in position around.
The described post tooth 6 interior installation of locating hole 4 around that fractures is repaired before post tooth 5, first that the shaft coupling being connected with roll surface 1 is stuck, guarantees that the roll surface 1 of high-pressure roller mill can not rotate in mending course, is convenient to repair.
Roller of High post tooth broken teeth method for repairing and mending of the present invention, after one or more post tooth fractures on the roll surface of high-pressure roller mill, surrounding at the post tooth of described fracture arranges a plurality of recessed locating holes by gap in one week, a repairing post tooth that protrudes from roll surface surface is installed respectively in each locating hole, like this, by repairing hardness and the wearability of post tooth, the rock lining layer that can again be formed by the material embedding cloth that is broken at the post between cog of repairing post tooth, guarantee that roll surface does not directly contact new broken material, thereby can guarantee that roll surface continues normal use, thereby extended roll surface service life.Method of the present invention, forms stable rock lining layer on roll surface surface, extend high-pressure roller mill service life, guarantees that reach 10000-30000 hours its service life.While repairing after the fracture of post tooth, do not need roll surface to separate high-pressure roller mill, repair extremely efficient and convenient yet.
By reference to the accompanying drawings the present invention has been carried out to exemplary description above; obviously the concrete realization of the present invention is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present invention and technical scheme to carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasions, all in protection scope of the present invention.
Claims (5)
1. a Roller of High post tooth broken teeth method for repairing and mending, the roll surface of described high-pressure roller mill (1) surface arranges a plurality of post teeth (2) of arranging by gap, a plurality of post teeth (2) respectively with roll surface (1) on post tooth installing hole (3) interference install, it is characterized in that: after one or more post teeth (2) fracture on described roll surface (1), surrounding at the post tooth (6) that fractures arranges a plurality of recessed locating holes (4) by gap in one week, and a repairing post tooth (5) that protrudes from roll surface (1) surface is installed respectively in each locating hole (4).
2. Roller of High post tooth broken teeth method for repairing and mending according to claim 1, it is characterized in that: between described repairing post tooth (5) and locating hole (4), interference is installed, the part that described repairing post tooth (5) protrudes from roll surface (1) surface is set to the structure higher than roll surface (1) surface 3-5mm.
3. Roller of High post tooth broken teeth method for repairing and mending according to claim 1 and 2, it is characterized in that: described repairing post tooth (5) adopts the manufacture of hard tungsten carbide material to form, repairing post tooth (5) is installed in post tooth (6) locating hole (4) around that fractures front, first the post tooth (6) that fractures on roll surface (1) is carried out to repair welding processing in position around, guarantee that this abrading section is consistent with unworn roll surface (1) apparent height.
4. Roller of High post tooth broken teeth method for repairing and mending according to claim 3, it is characterized in that: in described post tooth (6) locating hole (4) around that fractures, repairing post tooth (5) is installed front, first rotate roll surface (1), the position of the post tooth (6) that fractures is turned to horizontal level, and clear up the foreign material of the accumulation at post tooth (6) position that fractures, then the post tooth (6) that fractures on roll surface (1) is carried out to repair welding processing in position around.
5. Roller of High post tooth broken teeth method for repairing and mending according to claim 4, it is characterized in that: in described post tooth (6) locating hole (4) around that fractures, repairing post tooth (5) is installed front, the shaft coupling that first will be connected with roll surface (1) is stuck, guarantees that the roll surface (1) of high-pressure roller mill can not rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410277450.5A CN104028945B (en) | 2014-06-19 | 2014-06-19 | A kind of Roller of High post tooth broken teeth method for repairing and mending |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410277450.5A CN104028945B (en) | 2014-06-19 | 2014-06-19 | A kind of Roller of High post tooth broken teeth method for repairing and mending |
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| Publication Number | Publication Date |
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| CN104028945A true CN104028945A (en) | 2014-09-10 |
| CN104028945B CN104028945B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410277450.5A Active CN104028945B (en) | 2014-06-19 | 2014-06-19 | A kind of Roller of High post tooth broken teeth method for repairing and mending |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526248A (en) * | 2014-11-04 | 2015-04-22 | 马鞍山市格林矿冶环保设备有限公司 | Column nail roller surface repairing method of novel high-pressure roller mill |
| CN106064286A (en) * | 2016-08-12 | 2016-11-02 | 华能湖南岳阳发电有限责任公司 | The broken teeth bracing means of a kind of huge gear and method for repairing and mending |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3755877A (en) * | 1971-11-08 | 1973-09-04 | F Thompson | Method of repairing gear cutter wheels with a welding fixture and grinding fixture therefor |
| CN2248612Y (en) * | 1995-03-10 | 1997-03-05 | 雷廷扬 | Large modulus plate for restoring open teeth-wheel |
| CA2202213A1 (en) * | 1996-05-06 | 1997-11-06 | Norbert Patzelt | Grinding roll and method for operation and repair thereof |
| EP1568439A1 (en) * | 2004-02-25 | 2005-08-31 | Diag-Metal | Process and device for repairing gear teeth |
| CN103128483A (en) * | 2011-11-28 | 2013-06-05 | 宝山钢铁股份有限公司 | Repair method of fracture shaft |
-
2014
- 2014-06-19 CN CN201410277450.5A patent/CN104028945B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3755877A (en) * | 1971-11-08 | 1973-09-04 | F Thompson | Method of repairing gear cutter wheels with a welding fixture and grinding fixture therefor |
| CN2248612Y (en) * | 1995-03-10 | 1997-03-05 | 雷廷扬 | Large modulus plate for restoring open teeth-wheel |
| CA2202213A1 (en) * | 1996-05-06 | 1997-11-06 | Norbert Patzelt | Grinding roll and method for operation and repair thereof |
| EP1568439A1 (en) * | 2004-02-25 | 2005-08-31 | Diag-Metal | Process and device for repairing gear teeth |
| CN103128483A (en) * | 2011-11-28 | 2013-06-05 | 宝山钢铁股份有限公司 | Repair method of fracture shaft |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526248A (en) * | 2014-11-04 | 2015-04-22 | 马鞍山市格林矿冶环保设备有限公司 | Column nail roller surface repairing method of novel high-pressure roller mill |
| CN106064286A (en) * | 2016-08-12 | 2016-11-02 | 华能湖南岳阳发电有限责任公司 | The broken teeth bracing means of a kind of huge gear and method for repairing and mending |
| CN106064286B (en) * | 2016-08-12 | 2018-11-30 | 华能湖南岳阳发电有限责任公司 | A kind of the broken teeth bracing means and method for repairing and mending of huge gear |
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| Publication number | Publication date |
|---|---|
| CN104028945B (en) | 2016-08-24 |
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