CN104028945B - A kind of Roller of High post tooth broken teeth method for repairing and mending - Google Patents
A kind of Roller of High post tooth broken teeth method for repairing and mending Download PDFInfo
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- CN104028945B CN104028945B CN201410277450.5A CN201410277450A CN104028945B CN 104028945 B CN104028945 B CN 104028945B CN 201410277450 A CN201410277450 A CN 201410277450A CN 104028945 B CN104028945 B CN 104028945B
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- post tooth
- roll surface
- repairing
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
nullThe present invention provides a kind of Roller of High post tooth broken teeth method for repairing and mending，Roll surface (1) surface configuration multiple post tooth (2) of described high-pressure roller mill，Multiple post teeth (2) are installed with post tooth installing hole (3) interference on roll surface (1) respectively，After one or more post teeth (2) fracture on described roll surface (1)，Around the post tooth (2) of fracture, multiple recessed hole, location (4) was set by gap in one week，Repairing post tooth (5) protruding from roll surface (1) surface it is respectively mounted in hole, each location (4)，The Roller of High post tooth broken teeth method for repairing and mending of the present invention，By repairing hardness and the wearability of post tooth，The rock lining layer that again can be formed by the embedding cloth of the material that is broken at the post between cog repairing post tooth，Guarantee that roll surface is not directly contacted with new broken material，Guarantee that roll surface continues normal use，Thus extend roll surface service life，Its repairing is the most efficient and convenient.
Description
Technical field
The invention belongs to Metal mining production, comminution process produces equipment technical field, more specifically, is
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 widely used.High-pressure roller mill using effect not only with roll-in powder
Broken effect is relevant, and there is direct relation in the more service life with roll surface, and the most conventional roll surface has built-up welding patterned roll
Face and hard alloy columnar teeth roll surface, the former is low less than 8000 hours for service life, typically uses at cement industry,
The latter lasts a long time up to 10,000 30000 hours, mainly uses at metal mine, and roll surface cost also exceeds
The former is tens times.The abrasion resistance in post flute profile high pressure grinding rolls face mainly utilize post tooth hard tungsten carbide hardness and
Wearability, and the rock lining layer that post between cog is formed by the embedding cloth of the material that is broken, roll surface is not directly contacted with newly
Broken material, thus extend roll surface service life.Post tooth is hard tungsten carbide, and its hardness and wearability are very
Height, but its toughness is not enough, and the damage that fractures the most unavoidably occurs, especially the cleanest to Material deironing
In the case of, stud is once damaged disconnected, and rock lining layer loses support, does not aggravate from lining roll surface wearing.By
Assembling form in post tooth with roll surface uses interference fit, and post tooth has no idea after fractureing to repair, and some factory adopts
Use non-interference fit, it is desirable to after post tooth fractures, update post tooth, reach the purpose extending roll surface service life.
It is true that i.e. change owing to can not find in time, being also impossible to i.e. to break in Sheng Chaning, post tooth pedestal at elevated pressures
Deforming, the post tooth fractureed cannot be taken out, and post dental transition is changed and is difficult to execute-in-place.Once there is post tooth pedestal in roll surface
Abrasion, forms deep recessed area, quickly can affect the post tooth of periphery, the most easily breakdown occurs but also when pedestal weares and teares
Time deeper, post tooth is easy to fall off, after large area abrasion occurs, then more to renew roll surface.The domestic mine post tooth having
Forming roll circle service life was less than 7000 hours.Some mines use hardfacing or mend abrading section manganese steel
Repairing way, its case hardness is only up to about HRC55, and it is the poorest that relatively hard tungsten carbide reaches about HRC70
Bigger, it is impossible to reaching the wear-resisting of post tooth and rock lining layer, effect is the most bad, often repair welding impact produces.
Summary of the invention
The technical problem to be solved is: for the deficiencies in the prior art, it is provided that Yi Zhongcao
Make simple, it is possible to conveniently and efficiently to occurring post tooth breakdown to repair, it is ensured that high-pressure roller mill can continue to
Normal use, extends the Roller of High post tooth broken teeth method for repairing and mending of roll surface whole service life.
Techniques discussed above problem to be solved, 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 roller of described high-pressure roller mill
Face surface configuration multiple by gap arrange post tooth, multiple post teeth respectively with the post tooth installing hole interference on roll surface
Install, after the fracture of one or more post teeth on described roll surface, around the post tooth that fractures one week by gap
Multiple recessed hole, location is set, in hole, each location, is respectively mounted a repairing post protruding from roll surface surface
Tooth.
Between described repairing post tooth and hole, location, interference is installed, and described repairing post tooth protrudes from roll surface surface
Part be set above the structure of roll surface surface 3 5mm.
Described repairing post tooth uses hard tungsten carbide material to be fabricated by, in the hole, location that the post tooth rim that fractures encloses
Before post tooth is repaired in interior installation, first the post tooth rim that fractures on roll surface is enclosed position and carry out repair welding process, it is ensured that this mill
Damage position consistent with unworn roll surface apparent height.
Installing in the hole, location that the described post tooth rim that fractures encloses before repairing post tooth, first rotate roll surface, will fracture post
The position of tooth turns to horizontal level, and clears up the foreign material of the accumulation of the post teeth portion position that fractures, then to roll surface
On the post tooth rim that fractures enclose position and carry out repair welding process.
Install before repairing post tooth in the hole, location that the described post tooth rim that fractures encloses, the shaft coupling being first connected with roll surface
Device is stuck, it is ensured that the roll surface of high-pressure roller mill will not rotate.
Use technical scheme, can obtain following beneficial effect:
Roller of High post tooth broken teeth method for repairing and mending of the present invention, on the roll surface of high-pressure roller mill
After the fracture of one or more post teeth, within one week around the post tooth of described fracture, arrange multiple recessed by gap
Hole, location, is respectively mounted a repairing post tooth protruding from roll surface surface, so, passes through in hole, each location
Repair hardness and the wearability of post tooth, again can be formed by the embedding cloth of the material that is broken at the post between cog repairing post tooth
Rock lining layer, it is ensured that roll surface is not directly contacted with new broken material, it is thus possible to guarantee that roll surface continues normal
Use, thus extend roll surface service life.Method of the present invention, is formed stable on roll surface surface
Rock lining layer, extends high-pressure roller mill service life, it is ensured that its service life reaches 10,000 30000 hours.
When repairing after post tooth ruptures, it is not required to separate roll surface high-pressure roller mill, repairs the most efficient and convenient.
Accompanying drawing explanation
Content expressed by accompanying drawing each to this specification and the labelling in figure make 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 in the A-A face of the Roller of High described in Fig. 1；
Reference is: 1, roll surface；2, post tooth；3, installing hole；4, hole, location；5, post tooth is repaired；
6, fracture post tooth.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, the most involved to the detailed description of the invention of the present invention
The shape of each component, structure, mutual alignment between each several part and annexation, the effect of each several part and
Operation principles etc. are described in further detail:
Such 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,
The multiple post tooth 2 arranged by gap of roll surface 1 surface configuration of described high-pressure roller mill, 2 points of multiple post teeth
Post tooth installing hole 3 interference not and on roll surface 1 is installed, the one or more post teeth 2 on described roll surface 1
After fracture, within one week around the post tooth 2 of described fracture, multiple recessed hole, location 4 is set by gap, often
A repairing post tooth 5 protruding from roll surface 1 surface it is respectively mounted in hole, individual location 4.
Between described repairing post tooth 5 and hole 4, location, interference is installed, and described repairing post tooth 5 protrudes from roller
The part on surface, face 1 is set above the structure of 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 to be to roll surface 1
Repairing, the periphery at the post tooth 6 that fractures arranges hole, multiple location 4 by perforating technology, then each
One repairing post tooth 5 of setting-in in hole, location 4, repairing post tooth 5 protrudes from roll surface 1 surface, and (protrusion height regards base
Depending on the worn-out situation of seat, serious wear, protrusion height is high, weares and teares little, and protrusion height is low), such mesh
, it is to form the strong point at roll surface, it is simple on the roll surface of post tooth 6 that fractures, again form rock lining
Layer, so, it becomes possible to by the rock lining layer protection roll surface being newly formed, it is ensured that roll surface continues normal use.
Described repairing post tooth 5 uses hard tungsten carbide material to be fabricated by, determining around the post tooth 6 that fractures
Install in hole, position 4 before repairing post tooth 5, first the post tooth 6 surrounding position that fractures on roll surface 1 carried out repair welding process,
Guarantee that this abrading section is consistent with unworn roll surface 1 apparent height.
Install in hole, location 4 around the described post tooth 6 that fractures before repairing post tooth 5, first rotate roll surface 1,
The position of fracture post tooth 2 is turned to horizontal level, and clears up the foreign material of the accumulation at post tooth 6 position that fractures,
Then repair welding process is carried out to the post tooth 2 surrounding position that fractures on roll surface 1.
Install before repairing post tooth 5 in hole, location 4 around the described post tooth 6 that fractures, first will with roll surface 1 even
The shaft coupling connect is stuck, it is ensured that the roll surface 1 of high-pressure roller mill will not rotate in mending course, it is simple to repair.
Roller of High post tooth broken teeth method for repairing and mending of the present invention, on the roll surface of high-pressure roller mill
After the fracture of one or more post teeth, within one week around the post tooth of described fracture, arrange multiple recessed by gap
Hole, location, is respectively mounted a repairing post tooth protruding from roll surface surface, so, passes through in hole, each location
Repair hardness and the wearability of post tooth, again can be formed by the embedding cloth of the material that is broken at the post between cog repairing post tooth
Rock lining layer, it is ensured that roll surface is not directly contacted with new broken material, it is thus possible to guarantee that roll surface continues normal
Use, thus extend roll surface service life.Method of the present invention, is formed stable on roll surface surface
Rock lining layer, extends high-pressure roller mill service life, it is ensured that its service life reaches 10,000 30000 hours.
When repairing after post tooth ruptures, it is not required to separate roll surface high-pressure roller mill, repairs the most efficient and convenient.
Above in conjunction with accompanying drawing, the present invention is carried out exemplary description, it is clear that concrete implementation of the present invention is not
Limited by aforesaid way, if the various improvement that the method design that have employed the present invention is carried out with technical scheme,
Or the most improved design by the present invention and technical scheme directly apply to other occasions, all the present invention's
In protection domain.
Claims (5)
1. a Roller of High post tooth broken teeth method for repairing and mending, the roll surface (1) of described high-pressure roller mill
Surface configuration multiple by gap arrange post tooth (2), multiple post teeth (2) respectively with the post tooth on roll surface (1)
Installing hole (3) interference is installed, it is characterised in that: the one or more post teeth (2) on described roll surface (1)
After fracture, multiple recessed hole, location (4) was set by gap in one week around the post tooth (6) that fractures, each
It is respectively mounted repairing post tooth (5) protruding from roll surface (1) surface in hole, location (4).
Roller of High post tooth broken teeth method for repairing and mending the most according to claim 1, it is characterised in that:
Between described repairing post tooth (5) and hole, location (4), interference is installed, and described repairing post tooth (5) is protruded
Part in roll surface (1) surface is set above the structure of roll surface (1) surface 3 5mm.
Roller of High post tooth broken teeth method for repairing and mending the most according to claim 1 and 2, its feature
It is: described repairing post tooth (5) uses hard tungsten carbide material to be fabricated by, in post tooth (6) week that fractures
Repairing post tooth (5) is installed front in the hole, location (4) enclosed, first to fractureing post tooth (6) week on roll surface (1)
Enclose position and carry out repair welding process, it is ensured that the abrading section of roll surface (1) and unworn roll surface (1) apparent height
Unanimously.
Roller of High post tooth broken teeth method for repairing and mending the most according to claim 3, it is characterised in that:
Repairing post tooth (5) is installed front in described post tooth (6) hole, location (4) around that fractures, first rotates roll surface
(1), the position of the post tooth (6) that fractures is turned to horizontal level, and clears up the heap at post tooth (6) position that fractures
Long-pending foreign material, then around carry out repair welding process in position to the post tooth (6) that fractures on roll surface (1).
Roller of High post tooth broken teeth method for repairing and mending the most according to claim 4, it is characterised in that:
Repairing post tooth (5) is installed front in described post tooth (6) hole, location (4) around that fractures, first will be with roll surface
(1) shaft coupling connected is stuck, it is ensured that the roll surface (1) of high-pressure roller mill will 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
|---|---|
| CN104028945A CN104028945A (en) | 2014-09-10 |
| CN104028945B true 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526248B (en) * | 2014-11-04 | 2017-01-25 | 马鞍山格林环保科技股份有限公司 | Column nail roller surface repairing method of high-pressure roller mill |
| 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 |
Family Cites Families (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 |
| DE19618143A1 (en) * | 1996-05-06 | 1997-11-13 | Krupp Polysius Ag | Roller mill grinding roller with projecting anchored pins for longer grinding time |
| FR2866585B1 (en) * | 2004-02-25 | 2006-05-12 | Diag Metal | METHOD AND DEVICE FOR THE REPAIR OF GEAR DENTURES |
| CN103128483B (en) * | 2011-11-28 | 2016-12-07 | 宝山钢铁股份有限公司 | A kind of restorative procedure of the axle that ruptures |
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| CN104028945A (en) | 2014-09-10 |
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