CN108581363A - A kind of Vertical Mill wheel hub restorative procedure - Google Patents
A kind of Vertical Mill wheel hub restorative procedure Download PDFInfo
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- CN108581363A CN108581363A CN201810643639.XA CN201810643639A CN108581363A CN 108581363 A CN108581363 A CN 108581363A CN 201810643639 A CN201810643639 A CN 201810643639A CN 108581363 A CN108581363 A CN 108581363A
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- wheel hub
- vertical mill
- restorative procedure
- template
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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
Abstract
The invention discloses a kind of Vertical Mill wheel hub restorative procedures, belong to Vertical Mill wheel hub recovery technique field, including make template, measure wear extent, welding and anchor point of polishing, blasting treatment, removing surface, smearing and polish, the prepackage of roller set, step is completed in installation and repair with one heart.The present invention filled up current Lay have a rest Vertical Mill wheel hub abrasion after the blank without appropriate process recovery technique, avoid high-cost renewal cost and prolonged replacement cycle, avoid influence enterprise normal production task.
Description
Technical field
The present invention relates to Vertical Mill wheel hub recovery technique field, more particularly to a kind of Vertical Mill wheel hub restorative procedure.
Background technology
Vertical Mill is mainly used for building material industry slag, clinker grinding, and home roll assembly is Vertical Mill core component, general import Vertical Mill
Home roll assembly uses nodular cast iron material, and for example German Lay is had a rest Vertical Mill home roll assembly, but because of the reasons such as home roll more roll change set, Vertical Mill
It will appear different degrees of abrasion in the rear-wheel hub using several years, causing roller set coordinate contact surfac gap occur causes roller set to occur
The problems such as base material fracture and run-off, brings prodigious economic loss to enterprise's production.
Again because nodular cast iron material Bead weld repair is poor, German Lay has a rest Vertical Mill cannot be using traditional build-up welding repair process reparation
The wheel hub of abrasion, wheel hub can only be replaced and cannot be repaired when wearing, but German Lay is had a rest the single spare part expense of Vertical Mill home roll assembly wheel hub
With 1,500,000 yuan, it is long to make the process-cycle, and the more transducer set wheel hub duration needs 10 days or more, directly replaces the wheel hub worn not only
Business equipment maintenance cost can be increased, 10 days or more replacement durations also constrained the normal production task of enterprise significantly.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of Vertical Mill wheel hub restorative procedure；The Vertical Mill wheel hub reparation
Method can reach the purpose that quickly online reparation uses after wheel hub damages, and solve after current import Vertical Mill wheel hub is worn without conjunction
Suitable technique recovery technique, the problem of can only directly replacing, avoids high-cost renewal cost and prolonged replacement cycle,
Avoid influencing the normal production task of enterprise, the wheel hub of this patent reparation from covering contact surface no-float with roller, can normal use, very
Good realizes as the purpose of this and synergy of enterprise's drop.
In order to solve the above technical problem, the present invention provides a kind of Vertical Mill wheel hub restorative procedure, include the following steps：
（1）Make template：Not wear wheel hub end housing side as measurement datum, model is made according to wheel hub drawing size
Ruler；
（2）Measure wear extent：Abrasion amount measuring is carried out to the wheel hub of abrasion using template, wear extent is determined, by template
Reference plane is in close contact with measurement datum, measures the wear extent of the wear extent and wheel hub tapered surface in wheel hub cylindrical fit face；
The distance that template faces wheel hub cylindrical fit face directly is the wear extent in wheel hub cylindrical fit face, template inclined-plane to wheel hub taper
The distance on surface is the wear extent of wheel hub tapered surface；
（3）It welds and anchor point of polishing：It is circumferential all with cylindrical fit face along the tapered surface of abrasion wheel hub by the way of spot welding
To uniformly distributed welding anchor point, tack-weld meat is slightly above wheel hub original size, and using template as foundation, tack-weld meat of polishing
Highly to wheel hub original size；
（4）Blasting treatment：Blasting treatment is carried out to the cylindrical fit face and tapered surface of wearing wheel hub, and is blown using compressed air
It sweeps clean；
（5）Removing surface：The cylindrical fit face for wearing wheel hub and tapered surface are cleaned up using absolute ethyl alcohol, and dry；
（6）It smears and polishes：The macromolecule polymer material being pre-mixed is applied on the cylindrical fit face of abrasion wheel hub
Be compacted on tapered surface and firmly, smearing thickness is slightly above wheel hub original size, is beaten after macromolecule polymer material solidification
Grind high point；
（7）Roller set prepackage：To step（6）The middle wheel hub polished of smearing carries out roller set prepackage, and ensures extra high molecular polymerization
Object material is extruded；
（8）Installation with one heart：The concentricity covered using meter ruler multimetering wheel hub and roller, it is ensured that wheel hub and the installation with one heart of roller set；
（9）Repair is completed：By step（7）The extra macromolecule polymer material of middle extrusion is rejected totally, and according to design requirement
Torque grinding roller bolt is fastened, install gland, bolt torsion 3900NM, repair complete.
Further to improve, above-mentioned template is processed using line cutting technology, and machining tolerance requires to be ± 0.1mm；It is described
Template is made by 45# steel, and template thickness is 5mm, and the size of template need to be according to wheel hub layout design to be repaired, model
Ruler is processed using line cutting technology, can preferably ensure its precision.
It is further to improve, above-mentioned steps（3）In anchor point be provided with 8~14, according to the wear extent size of wheel hub
The quantity of anchor point, generally 8~14 are set, and wheel hub wear extent is bigger, and the setting of anchor point quantity is more, this prestige is known, fixed
The main function one in site is easy for high molecular material smearing, prevents from falling off, second is that auxiliary positioning concentricity.
It is further to improve, above-mentioned steps（3）In weldering meat it is higher 1~2mm than wheel hub original size, wheel hub original size is
Refer to the design size of wheel hub, the abrasion size of wheel hub is the wear extent for referring to wheel hub, after the spot welding of wheel hub tack-weld
1~2mm that meat original dimension is higher than abrasion size is welded, then carries out being polishing to wheel hub design size, it is better when to repair
Ensure concentricity, if tack-weld contact weldering meat size is less than wheel hub original size, subsequently also needs to continue to be soldered to design ruler
It is very little, this measure more difficult control dimensional accuracy compared with being polishing to design size.
It is further to improve, above-mentioned steps（4）Middle blasting treatment standard is Sa2.5 sandblasting standards.
It is further to improve, above-mentioned steps（6）In macromolecule polymer material be polymer composite 2211F, it is high
Molecular composite material 2211F is a kind of new material developed on the basis of the double grading based on composite material and metal,
Both had performance excellent in metal material, while having compensated for the defect of metal material in actual use, it has excellent
Outside the comprehensive mechanical properties such as different compressive property, cohesive force, tensile property, while being also equipped with " making a concession not available for metal
Property ", ageing resistance, corrosion resistance etc., therefore it is particularly successful in terms of metallic prosthetic, especially in terms of axis class wears reparation,
It has excellent performance.
Further to improve, above-mentioned macromolecule polymer material includes high molecular material coagulant A and high molecular material base
The mixture proportion of glue B, high molecular material base rubber B are 60%~70%, macromolecule polymer material（Polymer composite 2211F）
It is the two-component composite material made of nano material, metal powder, high-performance epoxy composite（High molecular material coagulant A and
High molecular material base rubber B）, when use is used in mixed way by high molecular material coagulant A and high molecular material base rubber B, macromolecule material
The mixture proportion of base rubber B to be expected in 60%-70%, pays attention to having to firmly be compacted when smearing, it is ensured that material is bonding with metal surface,
One group of macromolecule polymer material is made of two kinds of macromolecule coagulant A, macromolecule base rubber B materials, and when use need to be by two kinds
Material is used in mixed way, and by practical application, base rubber B mixture proportion 60%-70%, repairing effect is best, and material is barreled, in recruitment
A small amount of material is inevitably remained on bucket wall during tool is drawn materials, but this can be in acceptable range, macromolecule coagulant A
With macromolecule base rubber B, it is similar to AB glue, by solidifying after a certain period of time after mixing in proportion, reaches reparation and repaiies effect.
It is further to improve, above-mentioned steps（6）In macromolecule polymer material, need upon mixing 1 minute~60 minutes
It is inside applied on the cylindrical fit face of abrasion wheel hub and on tapered surface, high molecular material coagulant A and high molecular material base rubber B
After two kinds of high molecular materials proportionally mix, start to cure after 1h, hardness is also harder than metal after solidification, so necessary
It is smeared in 1 hour.
It is further to improve, above-mentioned steps（6）In smearing thickness it is higher 2~3mm than wheel hub original size, roller set and wheel hub
Contact surface area is the bigger the better, and roller set can be contacted with wheel hub 100% when roller is covered and installed higher than original size, extra material
It can be extruded out, this measure, which can preferably avoid smearing thickness not enough, to be caused to repair defect.
It is further to improve, above-mentioned steps（7）The inner surface of middle prepackage roller set needs impurity removing and iron rust before prepackage, and
It is wiped and is dried after smearing release agent, meeting after which contacts for a long time with metal with absolute ethyl alcohol
It penetrates into metal, is combined together with metal, when scrapping offline to next roller set to avoid roller set from installing and using, roller set and height
Molecular material, which is sticked together, to be separated, therefore smearing release agent on the contact surface before roller set installation in roller set with wheel hub.
Compared with prior art, the present invention has the advantages that：
The present invention can reach after wheel hub damage quickly it is online repair using purpose, using make template, measure wear extent,
Weld and anchor point of polishing, blasting treatment, removing surface, smearing and polish, roller set prepackage, with one heart installation and repair complete etc. steps
Suddenly, it solves and avoids high-cost replacement the problem of can only directly replacing without appropriate process recovery technique after current wheel hub is worn
Expense and prolonged replacement cycle avoid the normal production task for influencing enterprise, wheel hub and the roller of this patent reparation from being socketed
Contacting surface no-float, can normal use, realize the purpose for this and synergy of enterprise's drop well.
Original replaces single new wheel hub and needs 1,500,000 yuan, needs 10 days time or more, use the present invention often set rehabilitation expense for
50000 yuan, each repair time is 48 hours, and comparison directly replacement wheel hub often covers wheel hub and saves 1,450,000 yuan, saves maintenance time 8
It, has very significant economic benefit.
Description of the drawings
Fig. 1 is repair flow diagram of the present invention.
Fig. 2 is template structural schematic diagram of the present invention.
Fig. 3 is that template of the present invention measures wheel hub wear extent and locating point position schematic diagram.
As shown in the figure：1- templates；2- template reference planes；3- templates are faced directly；The abrasion in 31- wheel hub cylindrical fits face
Amount；4- templates inclined-plane；The wear extent of 41- wheel hub tapered surfaces；5- does not wear wheel hub end housing；51- measurement datums；6- wheel hubs
Cylindrical fit face；7- wheel hub tapered surfaces；8- anchor points.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made further below in conjunction with attached drawing
Detailed description.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, a kind of Vertical Mill wheel hub restorative procedure of the present invention, includes the following steps：
（1）Make template：Not wear 5 side of wheel hub end housing as measurement datum 51, sample is made according to wheel hub drawing size
Board foot 1；
（2）Measure wear extent：Abrasion amount measuring is carried out to the wheel hub of abrasion using template 1, wear extent is determined, by template
Reference plane 2 is in close contact with measurement datum 51, measures the mill of the wear extent and wheel hub tapered surface 7 in wheel hub cylindrical fit face 6
Damage amount；Template faces the wear extent 31 that 3 distance to wheel hub cylindrical fit face 6 is wheel hub cylindrical fit face, template inclined-plane 4 directly
Distance to wheel hub tapered surface 7 is the wear extent 41 of wheel hub tapered surface；
（3）It welds and anchor point of polishing：By the way of spot welding, along 7 circumferential direction of tapered surface of abrasion wheel hub and cylindrical fit face 6
Circumferential uniformly to weld anchor point 8, anchor point 8 welds meat and is slightly above wheel hub original size, and is foundation with template 1, polishing positioning
8 weldering meat height are selected to wheel hub original size；
（4）Blasting treatment：Blasting treatment is carried out to the cylindrical fit face 6 and tapered surface 7 of wearing wheel hub, and uses compressed air
Purging is clean；
（5）Removing surface：The cylindrical fit face 6 for wearing wheel hub and tapered surface 7 are cleaned up using absolute ethyl alcohol, and done
It is dry；
（6）It smears and polishes：The macromolecule polymer material being pre-mixed is applied on the cylindrical fit face 6 of abrasion wheel hub
Be compacted on tapered surface 7 and firmly, smearing thickness is slightly above wheel hub original size, is beaten after macromolecule polymer material solidification
Grind high point；
（7）Roller set prepackage：To step（6）The middle wheel hub polished of smearing carries out roller set prepackage, and ensures extra high molecular polymerization
Object material is extruded；
（8）Installation with one heart：The concentricity covered using meter ruler multimetering wheel hub and roller, it is ensured that wheel hub and the installation with one heart of roller set；
（9）Repair is completed：By step（7）The extra macromolecule polymer material of middle extrusion is rejected totally, and according to design requirement
Torque grinding roller bolt is fastened, install gland, bolt torsion 3900NM, repair complete.
Wherein, as shown in Fig. 2, the template is processed using line cutting technology, machining tolerance requires to be ± 0.1mm；Institute
It states template to be made by 45# steel, template thickness is 5mm, and the size of template need to be according to wheel hub layout design to be repaired, sample
Board foot is processed using line cutting technology, can preferably ensure its precision.
Wherein, as shown in figure 3, the step（3）In anchor point be provided with 8~14.
Furthermore above-mentioned steps（3）In weldering meat it is higher 1~2mm than wheel hub original size, the common exchange of the anchor point solder joint
Arc-welding machine welds, welding current control in 200A, welding temperature control at 600 DEG C, anchor point be auxiliary positioning concentricity and
The effect of material is smeared, built-up welding, the excessive high hardness of overlay cladding cannot be used to be not easy to polish, the solder joint after polishing is wanted and original size
Unanimously, it on the one hand can ensure the concentricity after repair, on the other hand applying material can be made uniform.
Above-mentioned steps（4）Middle blasting treatment standard is Sa2.5 sandblasting standards, and Sa2.5 is very thoroughly to spray or cast
Derusting, steel surface should be answered without the attachments such as visible grease, dirt, oxide skin, iron rust and skin of paint, any remaining trace
It is dotted or striated slight color spot, is used herein as sandblasting machine equipment.
Above-mentioned steps（6）In macromolecule polymer material be polymer composite 2211F, above-mentioned high molecular polymer
Material includes high molecular material coagulant A and high molecular material base rubber B, and the mixture proportion of high molecular material base rubber B is 60%~
70%, one group of macromolecule polymer material is made of two kinds of macromolecule coagulant A, macromolecule base rubber B materials, when use need by
Two kinds of materials are used in mixed way, and by practical application, base rubber B mixture proportion 60%-70%, repairing effect is best, and material is barreled,
A small amount of material is inevitably remained during being drawn materials with tool on bucket wall, but this can promote in acceptable range, macromolecule
Solidifying agent A and macromolecule base rubber B is similar to AB glue, by solidifying after a certain period of time after mixing in proportion, reaches reparation and repaiies effect,
Notice that entire hybrid modulation process will carry out under dustless environment, be as few as possible be mixed into dust.
Above-mentioned steps（6）In macromolecule polymer material, need be applied to abrasion wheels in 1 minute~60 minutes upon mixing
On the cylindrical fit face of hub and on tapered surface, personnel will wear disposable dustless work clothes when paying attention to smearing, if wheel hub is worn
Amount is big（The super 5mm of wear extent）, not restored to original size with high molecular material disposably, gradually to be smeared, when smearing every time
High molecular material is solid with forcing.
Above-mentioned steps（6）In smearing thickness it is higher 2~3mm than wheel hub original size, roller set with hub surface contact area
It is the bigger the better, roller set can be contacted with wheel hub 100% when roller is covered and installed higher than original size, extra material is squeezed out, is kept away
Exempting from smearing thickness not enough causes to repair defect.
Above-mentioned steps（7）The inner surface of middle prepackage roller set needs impurity removing and iron rust before prepackage, and absolute ethyl alcohol is used in combination to wipe
Wipe and dried after smearing release agent, when new roller set arrival inside have antirust oil, antirust is cleaned up with absolute ethyl alcohol（Use rag
And hairbrush）, there is the place of iron rust to be polished with sand paper individually.
Original replaces single new wheel hub and needs 1,500,000 yuan, needs 10 days time or more, use the present invention often set rehabilitation expense for
50000 yuan, each repair time is 48 hours, and comparison directly replacement wheel hub often covers wheel hub and saves 1,450,000 yuan, saves maintenance time 8
It, has very significant economic benefit.
It saves spare part expense 545.4 ten thousand every year for enterprise, saves wheel hub expense：Hub assembly often covers procurement price 1,500,000,
Current 15 wheel hubs to the replacement cycle, plan annual 3 sets of replacement, spare part expense 4,500,000.It saves roller and covers spare part expense：It does not repair
The average built-up welding of multiple preliminary roller set 4.5 times is offline to scrap, and repairs back roller set and restores to new wheel hub standard, and built-up welding is scrapped for 7 times, in a roller
It covers life cycle and saves spare part expense：（7-4.5）*（26/7）[roller covers expense each 260,000）*3（3 wheel hubs of every grinding machine）*4
（Totally 4 grinding machines）=111.4 ten thousand, convert annual benefit：111.4*12/14=95.4 ten thousand saves spare part expense 545.4 altogether every year
Ten thousand.
Save 6282 hours manpower working hours every year for enterprise, roller set is replaced：10*24*（7-4.5）* 3*4/7=1029 hour,
Convert annual working hour：1029*12/14=882 hour, wheel hub are replaced：10*12*15*3=5400 hour add up to and save manpower 6282
Hour.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.
Claims (10)
1. a kind of Vertical Mill wheel hub restorative procedure, it is characterised in that：Include the following steps：
（1）Make template：Not wear wheel hub end housing side as measurement datum, model is made according to wheel hub drawing size
Ruler；
（2）Measure wear extent：Abrasion amount measuring is carried out to the wheel hub of abrasion using template, wear extent is determined, by template
Reference plane is in close contact with measurement datum, measures the wear extent of the wear extent and wheel hub tapered surface in wheel hub cylindrical fit face；
（3）It welds and anchor point of polishing：It is circumferential all with cylindrical fit face along the tapered surface of abrasion wheel hub by the way of spot welding
To uniformly distributed welding anchor point, tack-weld meat is slightly above wheel hub original size, and using template as foundation, tack-weld meat of polishing
Highly to wheel hub original size；
（4）Blasting treatment：Blasting treatment is carried out to the cylindrical fit face and tapered surface of wearing wheel hub, and is blown using compressed air
It sweeps clean；
（5）Removing surface：The cylindrical fit face for wearing wheel hub and tapered surface are cleaned up using absolute ethyl alcohol, and dry；
（6）It smears and polishes：The macromolecule polymer material being pre-mixed is applied on the cylindrical fit face of abrasion wheel hub
Be compacted on tapered surface and firmly, smearing thickness is slightly above wheel hub original size, is beaten after macromolecule polymer material solidification
Grind high point；
（7）Roller set prepackage：To step（6）The middle wheel hub polished of smearing carries out roller set prepackage, and ensures extra high molecular polymerization
Object material is extruded；
（8）Installation with one heart：The concentricity covered using meter ruler multimetering wheel hub and roller, it is ensured that wheel hub and the installation with one heart of roller set；
（9）Repair is completed：By step（7）The extra macromolecule polymer material of middle extrusion is rejected totally, and according to design requirement
Torque grinding roller bolt is fastened, install gland, bolt torsion 3900NM, repair complete.
2. Vertical Mill wheel hub restorative procedure according to claim 1, it is characterised in that：The template uses line cutting technology
Processing, machining tolerance require to be ± 0.1mm；The template is made by 45# steel, and template thickness is 5mm.
3. Vertical Mill wheel hub restorative procedure according to claim 1, it is characterised in that：The step（3）In anchor point set
It is equipped with 8~14.
4. Vertical Mill wheel hub restorative procedure according to claim 3, it is characterised in that：The step（3）In weldering meat than wheel
High 1~the 2mm of hub original size.
5. Vertical Mill wheel hub restorative procedure according to claim 1, it is characterised in that：The step（4）Middle blasting treatment mark
Standard is Sa2.5 sandblasting standards.
6. Vertical Mill wheel hub restorative procedure according to claim 1, it is characterised in that：The step（6）In polyphosphazene polymer
Conjunction object material is polymer composite 2211F.
7. Vertical Mill wheel hub restorative procedure according to claim 6, it is characterised in that：The macromolecule polymer material includes
The mixture proportion of high molecular material coagulant A and high molecular material base rubber B, high molecular material base rubber B are 60%~70%.
8. the Vertical Mill wheel hub restorative procedure according to claim 1 or 6 or 7, it is characterised in that：The step（6）In height
Molecularly Imprinted Polymer material need to be applied in 1 minute~60 minutes on the cylindrical fit face of abrasion wheel hub and taper table upon mixing
On face.
9. the Vertical Mill wheel hub restorative procedure according to claim 1 or 6 or 7, it is characterised in that：The step（6）In painting
It is higher 2~3mm than wheel hub original size to smear thickness.
10. Vertical Mill wheel hub restorative procedure according to claim 1, it is characterised in that：The step（7）Middle prepackage roller set
Inner surface needs impurity removing and iron rust before prepackage, and absolute ethyl alcohol is used in combination to wipe and dried after smearing release agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643639.XA CN108581363A (en) | 2018-06-21 | 2018-06-21 | A kind of Vertical Mill wheel hub restorative procedure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643639.XA CN108581363A (en) | 2018-06-21 | 2018-06-21 | A kind of Vertical Mill wheel hub restorative procedure |
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| Publication Number | Publication Date |
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| CN108581363A true CN108581363A (en) | 2018-09-28 |
Family
ID=63628355
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| CN201810643639.XA Pending CN108581363A (en) | 2018-06-21 | 2018-06-21 | A kind of Vertical Mill wheel hub restorative procedure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112371245A (en) * | 2020-10-31 | 2021-02-19 | 中材天山(云浮)水泥有限公司 | Method for preventing roller skin of vertical mill from cracking |
| CN112621101A (en) * | 2020-12-03 | 2021-04-09 | 中煤张家口煤矿机械有限责任公司 | Method for repairing defect of heat exchange column of cast-silicon-aluminum heat exchanger by utilizing scrapped casting |
| CN113244987A (en) * | 2021-05-26 | 2021-08-13 | 邯郸钢铁集团有限责任公司 | Jaw crusher hub repairing structure and method |
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| CN113244987A (en) * | 2021-05-26 | 2021-08-13 | 邯郸钢铁集团有限责任公司 | Jaw crusher hub repairing structure and method |
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