CN2382470Y - Heavy crushing high strength impact resistant large hammer - Google Patents
Heavy crushing high strength impact resistant large hammer Download PDFInfo
- Publication number
- CN2382470Y CN2382470Y CN 99238243 CN99238243U CN2382470Y CN 2382470 Y CN2382470 Y CN 2382470Y CN 99238243 CN99238243 CN 99238243 CN 99238243 U CN99238243 U CN 99238243U CN 2382470 Y CN2382470 Y CN 2382470Y
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- CN
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- Prior art keywords
- boss
- tup
- hammering
- lug boss
- bumping
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Abstract
The utility model discloses an impact resistant large hammerhead with heavy crushing and high strength, which integrates a penetration shaft body, a bumping body of a lug boss, a circular lug boss, a penetration shaft hole, an arc-shaped plane of the lug boss and a wedge-shaped bumping edge, and the structure is that the left, the right, the front and the back are respectively and axially symmetrical; the integral structure is an integral structure of a plate type circular ladder fan-shaped combined body. The upper end of the penetration shaft body is a half circular ring body, and a trapezoidal plate body with the thickness which is equal to the horizontal center line of the half circular ring body is arranged between the horizontal center line of the half circular ring body and the upper end of the bumping body of the lug boss; both faces of the joint position of the lower end of the penetration shaft body and the upper end of the bumping body of the lug boss are provided with planes of the arc-shaped lug boss, the diameters of the sides of the two planes are equal, are symmetrical along the vertical center line, are concentric with the penetration shaft hole and have the same shaft, and the left and the right sides of the bumping body of the lug boss at the lower end are provided with the wedged-shaped bumping edges of which the edges are arc-shaped. The utility model has the advantages of abrasion resistance, no crack, shock resistance, long service life, energy saving and broken and even materials.
Description
The utility model relates to the big tup of a kind of heavy broken high-strength impact-resistant, be applicable in large-scale mine and the manufacture of cement industry, it is threaded onto on the axle of crusher hammer dish, be used for continuous high speed crushing kinds ratchel, carry out large-scale production, the high strength that primary fragmentation is shaped, wear-resistant, non-cracking, impact-resistant tup.
In existing technical field, grinder hammerhead is not wear-resisting, easy fracture, service life is short, cost is high.Be for many years in domestic mine and the manufacture of cement industry always, be badly in need of solving and technology, the economic headache failing all the time fundamentally to solve.The domestic grinder hammerhead of producing on material selection, the employing wear resistant cast iron that has; The employing 45# steel forgings that has after the modified processing of integral body, the surface hardening of tup working position; The employing ZGMn13 that has is used for making tup.Indivedual enterprises adopt combined type or combined type on hammehead structure: promptly the tup working position adopts antifriction alloy, and other parts adopt quality carbon steel to make.And most of units still adopt integral type (being that same material is adopted in tup working portion and mounting portion).Above-mentioned grinder hammerhead all belongs to general light-duty tup, and the weight of tup own is between 8-50kg; So only be used for the small-scale production of general low-producing microshock or medium and small impact, the broken raw meal particle size of institute is little and softer, as malachite, garbage waste, lime stone, glass etc.Owing to fracture generation often successively in using, cause many producers to need stopping production to remove to change the fracture tup up to 5-6 time in one month on the whole generally at 1-3 month its service life.Chinese patent by retrieval, find a kind of composite wear-resistant hammerhead, the patent No. is ZL97200813.6, its overall structure is: circular plate type is worn axis body, stage casing rectangle connected body, and fan-shaped this three of hammering body is an one, two is big, intermediate elongated, and tup attacks and destroy easy mill position and adopts high hard antifriction alloy to cast can be cast as forms such as angie type, bucket type, square bar formula, board-like, chip according to need of work.Adopt point, enclose, the method for weldering and the parent connection of hammering body.And parent can adopt cast iron or steel or potassium steel, after claim available No. 35 steel again.The interior letter of this patent is: the protection parent is changed easily mill part, and cost saving has following improper part in this patent statement:
1, tup easily grinds part and adopts high hard antifriction alloy cast form, and parent can adopt cast iron or steel or potassium steel, also can adopt steel No. 35, with the way of arc welding it is connected, and constitutes composite hammer head, and postwelding does not need heat treatment, the use of directly installing.As everyone knows, its welding procedure difference of different steel grades (comprise welding rod, solder flux, whether welding machine, whether preheating, postwelding tempering etc.).Example: can not preheating when No. 35 steel adopt the weldering of T422 welding rod; And potassium steel when welding must preheating, otherwise crack, postwelding must tempering; And its welding process difference of cast iron, and preheating is answered in No. 45 steel welding, adopts the J507 welding rod, postwelding is answered tempering; The hard antifriction alloy body of its used height can not have the weldability of multiple fertile material concurrently.
2, be to be cast as the hard antifriction alloy of form height in view of the parent outer wear layer,, the slit must be arranged again when connecting with parent like this, thereby weakened the toughness of wearing layer so must have rough and uneven in surface on the body or phenomenon such as tiltedly hectare.
If 3 parents adopt cast iron or casting carbon steel, then can't bear big, heavy, the severe impact of hard material in fragmentation at all.Adopt the high manganese steel casting then must tough processing of water and special thermal treatment and carry out machining as parent, otherwise, also hold and can't stand severe impact.If parent adopts alloy steel forging through roughing, modified, fine finishining, cost height (parent valency: about 2000 yuan/ton) not only then, and mechanical performance is unsatisfactory, the tup toughness that routine Beijing Heavy-duty Machine Factory introduces Denmark's technology manufacturing is 54j/cm only
2(29600 yuan/ton of finished product valencys).
4, this tup physique structure interlude is the rectangle plate body, and its weakness can't bear strong wearing and tearing and severe impact big, heavy, that produce when hard material is broken in interlude and connection place, this section two at all.
5, to adopt thickness be 4-30mm to the hard wearing layer of the height of this tup, also incompatibility attack and destroy greatly, weigh, the wearing and tearing by force of hard material, occasion that impact is violent.
6 if the parent of potassium steel will be changed it after high hard wear-resisting being partially damaged of hammering body periphery, then needs the hard wear-resisting part of the peripheral residual height of cutting after preheating; And must can combine as a whole with new high hard wear body weldering after the preheating, postwelding also must tempering.So not only certainly will cause tup parent and antifriction alloy mechanical performance after the tough processing of water to descend significantly, and cause expense very high.So this tup can not be widely used in industries such as mine cement, power plant, metallurgy.Undoubtedly, it is that it may only be suitable for low speed, light weight, the broken occasion of microshock to a kind of imagination in other words.
With above-mentioned tup is identical on general structure granted CN8520576V on August 13rd, 1986 (pulverizer modified alloy tup) arranged, its difference only is: tup attacks and destroy the coupling method of easy mill part and tup parent.The former adopts manual electric arc welding to connect; The latter adopts to imbed casting connection one with the working position in the potassium steel tup parent of three steel-bonded carbides embedding cast forms.This patent has following immature part by analysis:
1, embeds three or some steel-bonded carbides in the working position of the easy mill of tup, and parent adopts potassium steel, and cast form, Zhu Zhi, no matter be which kind of steel alloy must just have the favorable mechanical performance after Overheating Treatment, if the alloy sheet after Overheating Treatment embeds the potassium steel tup parent of cast form; So, the alloy sheet that embeds in the parent is changing with in cooling off up to more than 1700 degree cast form potassium steel Celsius annealing taking place; This just causes the steel-bonded carbide piece performance that hurried decline takes place; Potassium steel parent after other comes out of the stove must carry out the tough processing of water, and not so its parent comprehensive mechanical is just very low, can't bear big, heavy, the impact of hard material in fragmentation at all.In the tough processing of water,, except that causing steel-bonded carbide piece rhegma, also might produce both and throw off because steel-bonded carbide is different with potassium steel parent material, and Technology for Heating Processing is completely different, and its shrinkage factor does not wait.If embed high hard wearable hard alloy sheet in the parent, the crowd knows: carbide alloy is hard and crisp, and toughness is extremely low, can't bear size, direction, application point in power at all and be the broken occasion that changes hurried big, heavy, hard thing in time.
2, its parent is two big (circular orifice, an other end fanning strip), middle thin (cuboid).The severe impact that this general structure can't be born greatly at all, weighed, hard material is produced when fragmentation.
If 3 these tups can be by the author's idea manufacturing success, so, its cost can not be low.Because the antifriction alloy body need be processed, heat treatment, and the tup parent is also answered heat treatment and machining, otherwise weight difference is just big between each tup, causes the rotor unbalance in the rotation at a high speed.
So it is little that this scheme only is suitable for raw meal particle size, and softer light weight, microshock fragmentation.As: glass, malachite, coal cinder etc.
No matter because the at present domestic grinder hammerhead of making is not voluntarily realized the intensity height in selection and structure, wear-resistant, non-cracking, shock-resistant, the life-span is long, price is low Technological Economy requirement; Cause quarrying of domestic mine and manufacture of cement producer frequently to change tup, increased purchase commodity, replacing tup service charge, the stopping production financial loss of many tups every year because of tup wearing and tearing, fracture; Except that having a strong impact on production, reduced rubble or cement quality, increase energy consumption, thereby increased enterprise's production cost, reduced business economic benefit and social benefit.
For satisfying technology and the cost requirement that tup uses in real the production, only Beijing Heavy-duty Machine Factory introduces technology and the steel alloy tup of manufacturing from Denmark at present, and its comprehensive mechanical performance is also unsatisfactory: tensile strength: δ
b=90kg/mm
2, toughness: A
Ku=54j/cm
2, percentage elongation: δ=12%, the contraction percentage of area: φ 〉=40%; Whole quenching and tempering hardness: H
B=230-250; The operate portions submeter is quenched: H
B=410-460; And price height: 29600 yuan/ton; According to the degree of broken material soft or hard, the tup life cycle was at 3-5 month.
The tup that Denmark, Australia big Buddhist nun Asia, Japan make has successively been bought, the relatively good δ of its comprehensive mechanical performance in the cement plant, Liuzhou when introducing Denmark's disintegrating machine equipment
b=80kg/cm
2, A
Ku=170j/cm
2, H
B=220-240, but cost an arm and a leg: 5.5 ten thousand yuan/ton (containing tariff); Its life cycle is generally at 8-10 month, applicable to various broken occasions.
The purpose of this utility model provides the big tup of a kind of heavy broken high-strength impact-resistant, it is simple in structure, be convenient to loading and unloading, intensity height, hardness are good, good, the anti-severe impact of wearability, cycle are long, save the energy, and material is evenly broken, and its percentage of damage reaches more than 95%, ratio of reduction k 〉=64, the broken output of material is big, and the tup manufacturing cost and use cost is low, with the product quality and the economic benefit of quarrying of comprehensive raising mine and cement production enterprise.
In order to achieve the above object, the utility model adopts following technical measures: the wearing axis body, boss hammering body, boss platform, wear axis hole of tup, arc boss plane, wedge hammering sword are connected as a single entity, overall structure be about, front and back axial symmetry separately, on it by wearing axis body and boss hammering body two big main parts are formed.Wear axis body upper end and be semi-circular ring, down to boss hammering body upper end to be the trapezoidal plate body of uniform thickness with it, Here it is wears the axis body lower end at the semi-circular ring horizontal center line.Have on the horizontal plane center line of semi-circular ring and the connection of the trapezoidal plate body of uniform thickness with it and wear a circular hole with one heart, there is isometrical concentric circles boss on its two sides; Contain and be symmetrical in vertical center line and wear the arc boss plane that axis hole is concentric and the two sides is isometrical wearing its two sides, connection place of holding on axis body lower end and the boss hammering body.Boss hammering body is that wedge hammering sword is contained in segment and two sides, and boss hammering body lower edge is an arcwall face; Overall structure is the integral structure of the fan-shaped assembly of board-like circle ladder; Be cast into blank by steel alloy, through twice heat treatment, shape.Wear axis body upper semi-circle ring body homogenizing the centrifugal force of tup at full speed rotation distribute.The concentric circles boss of two sides symmetry has increased tension, shearing strength and the toughness of tup; The two sides is symmetrical in the both sides boss of the arc boss plane of vertical center line and hammering body when increasing the tup quality, and increased crushing force or say increased broken active can E=(1/2) mv
2Joule.And wedge hammering sword has been realized laborsaving fragmentation; Again because of about on the overall structure being, front and back axial symmetry separately, so a side of boss hammering body by after the slow wearing and tearing, turn-over can carry out fragmentation work again, has prolonged the life-span of tup use.Adopt high strength, wear-resistant, shock-resistant alloy material to make.On the material chemical analysis, analyze and belong to superelevation manganese, evanohm cast steel; Wherein Mn, Mo, Cr have improved permeability; And Mn, Cr reduce the martenaging martempering temperature again when increasing austenite quantity; But and si, Mn, Mo, Cr crystal grain thinning, comprehensive mechanical performance improves in uniform formation; Mn, Mo, Cr element have increased temper resistance, promptly delayed martensite decomposition and carbide and gather the speed of growing up in tempering, make it still keep crystal grain thinning and uniform formation and favorable mechanical performance.Make the tup long service life.
Rational heat treatment technology in the utility model, not only solved superelevation manganese, chromium alloyed steel cast steel when dead head, easily crack with superelevation manganese, evanohm steel-casting can not machining because of the hardness height, and cause tup single-piece error big, make the contradiction of the broken rotor balance difference in the at a high speed rotation, the more important thing is that it has solved tup metallic gold phase constitution when following of contained alloying element proportioning should satisfy intensity that broken material should possess, hardness and toughness; Inside is even austenite, and boss hammering surface is a martensite.High rigidity (H
RC=59-63) surface martensite has improved the wearability of tup in the intense impact fragmentation, and uniform inner austenite structure removes and can remain on toughness (A good in the fragmentation
Ku=230j/cm
2) outside, its endosexine, back of slowly being worn and torn on the top layer can be transformed into martensite automatically, so the surface is high hard wear-resisting state all the time, and inside is the good shock-resistant state of toughness all the time.
The utility model compared with prior art has the following advantages and effect: simple in structure, and the good (δ of intensity
b=93kg/mm
2) wear-resistant, non-cracking, shock-resistant (A
Ku=230J/cm
2, δ=50%), long service life (operating period is more than 12 months continuously), applicability is wide, save the energy, material is evenly broken, and its percentage of damage reaches more than 95%, ratio of reduction K 〉=64, the broken output of material big (400-500 ton/time), the tup manufacturing cost and use cost low (the tup manufacturing cost: 9000 yuan/ton, 2000 yuan/ton of sale prices, low 9600 yuan/ton of more northern high price is than low 35000 yuan/ton of import price); Can be used for broken big (1600mm), heavy (8 tons), hard (big green stone) wait material and bear generation this moment strong wearing and tearing, thump; It is little and even to can be used for particle size after cracking again, and very big material such as iron ore, the green stone etc. of hardness, and bear strong wearing and tearing at this moment; Also can broken hardness and impact little than fluffer such as malachite, coal, glass etc.Calculate by import tup valency, can be country every year at least and save 9,840,000 dollars of tup purchase foreign exchanges; Can be country every year by the domestic existing level of production and price saves tup and directly buys 10,154 ten thousand yuan of expenses.Have practical reference value and significant social economic benefit widely.
Fig. 1 big tup schematic diagram of high-strength impact-resistant of attaching most importance to brokenly.
Fig. 2 big tup cutaway view of high-strength impact-resistant of attaching most importance to brokenly.
Below in conjunction with accompanying drawing the utility model is described in further detail:
According to Fig. 1, Fig. 2 as can be known, the utility model by wear axis body 1,2 liang of big main parts of boss hammering body constitute.Have on it: wear axis hole 4, boss platform 3, arc boss plane 5, wedge hammering sword 6.They are the integral structure of the fan-shaped assembly of board-like circle ladder, are cast into blank by special alloy steel, through twice heat treatment, shape.Wear to hold on the axis body 1 and be semi-circular ring, its homogenizing the centrifugal force of tup in rotation at a high speed distribute, wear axis body 1 under the semicircle horizontal center line to the boss hammering body 2 end be the trapezoidal plate body of uniform thickness with it, it has strengthened the intensity and the toughness of tup parent; The boss platform 3 of symmetry is arranged on the two sides of wearing axis body 1, and it has strengthened tension, shearing strength and the toughness of tup; Wear wearing in the axis body 1 and install the steel alloy major axis when axis hole 4 is used to tup is installed.There is the arc boss plane 5 that is symmetrical in vertical center line on the two sides of wearing axis body 1 and boss hammering body 2 junctions that in the lower end is trapezoidal plate body, containing wedge hammering sword 6 edges in boss hammering body 2 left and right sides of lower end is arcwall face, arc boss plane 5 has strengthened the linking intensity with lower end boss hammering body 2 on the one hand, strengthened the toughness of tup simultaneously, on the other hand, it also increases tup crushing force or broken initiatively energy E=(1/2) mv when increasing the tup quality
2(joule); Go up and to be semi-circular ring, down for the trapezoidal plate of uniform thickness with it wear axis body 1 and boss hammering body 2 is one altogether; The two sides of boss hammering body 2 are contained wedge hammering sword 6 and have been realized laborsaving fragmentation, and boss hammering body 2 is broken main position, so make high-intensity segment.Its boss is provided with, increased wearing layer thickness, prolonged service life, when increasing the tup quality and increased crushing force (or broken initiatively can), its lower end arcwall face is convenient to rotation, reduced simultaneously and broken material between friction and increased the intensity of wedge hammering sword 6.Wearing axis body 1, boss hammering body 2, boss platform 3, wearing axis hole 4, arc boss plane 5, wedge hammering sword 6 is one altogether.The tup general structure is the integral structure of the fan-shaped assembly of board-like circle ladder, and all around axial symmetry separately.It is good that this physique structure removes intensity, outside the toughness height, by after the slow wearing and tearing, the tup turn-over can be carried out fragmentation work in the one side of boss hammering body, thus prolongation tup service life.
Claims (4)
1, the big tup of a kind of heavy broken high-strength impact-resistant, it is characterized in that wearing axis body (1), boss hammering body (2), boss platform (3), wear axis hole (4), arc boss plane (5), wedge hammering sword (6) be connected as a single entity, structure be about, front and back axial symmetry separately, overall structure is the integral structure of the terraced fan-shaped assembly of board-like circle.
2, the big tup of a kind of heavy broken high-strength impact-resistant according to claim 1, it is characterized in that wearing axis body (1) upper end and be semi-circular ring, at the semi-circular ring horizontal center line down to boss hammering body (2) upper end to be the trapezoidal plate body of uniform thickness with it, have on the horizontal plane center line that is connected of the semi-circular ring and the trapezoidal plate body of uniform thickness with it and wear a circular hole (4) with one heart, there is isometrical concentric circles boss (3) on its two sides.
3, the big tup of a kind of heavy broken high-strength impact-resistant according to claim 1 is characterized in that containing on the two sides of wearing under the axis body (1) junction of holding on end and the boss hammering body (2) and is symmetrical in vertical center line and wears the arc boss plane (5) that axis hole (4) is concentric and the two sides is isometrical.
4, the big tup of a kind of heavy broken high-strength impact-resistant according to claim 1 is characterized in that boss hammering body (2) contains wedge hammering sword (6) for segment and two sides, and boss hammering body (2) lower edge is an arcwall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99238243 CN2382470Y (en) | 1999-08-04 | 1999-08-04 | Heavy crushing high strength impact resistant large hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99238243 CN2382470Y (en) | 1999-08-04 | 1999-08-04 | Heavy crushing high strength impact resistant large hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2382470Y true CN2382470Y (en) | 2000-06-14 |
Family
ID=34025719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99238243 Expired - Fee Related CN2382470Y (en) | 1999-08-04 | 1999-08-04 | Heavy crushing high strength impact resistant large hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2382470Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310014A (en) * | 2011-08-22 | 2012-01-11 | 宁国市东方碾磨材料有限责任公司 | High performance composite metal hammer |
| CN101391235B (en) * | 2007-08-31 | 2013-03-27 | 创世纪Ⅲ公司 | Hammermill hammer |
| CN106031896A (en) * | 2015-03-20 | 2016-10-19 | 山东泉林纸业有限责任公司 | Rotary drum type flat hammer pulverizer |
-
1999
- 1999-08-04 CN CN 99238243 patent/CN2382470Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391235B (en) * | 2007-08-31 | 2013-03-27 | 创世纪Ⅲ公司 | Hammermill hammer |
| CN102310014A (en) * | 2011-08-22 | 2012-01-11 | 宁国市东方碾磨材料有限责任公司 | High performance composite metal hammer |
| CN102310014B (en) * | 2011-08-22 | 2015-09-16 | 宁国市东方碾磨材料有限责任公司 | High performance composite metal hammer |
| CN106031896A (en) * | 2015-03-20 | 2016-10-19 | 山东泉林纸业有限责任公司 | Rotary drum type flat hammer pulverizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |