CN204603225U - Potassium steel crushing wall foundry goods rapid sequential coagulation system - Google Patents
Potassium steel crushing wall foundry goods rapid sequential coagulation system Download PDFInfo
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- CN204603225U CN204603225U CN201520236503.9U CN201520236503U CN204603225U CN 204603225 U CN204603225 U CN 204603225U CN 201520236503 U CN201520236503 U CN 201520236503U CN 204603225 U CN204603225 U CN 204603225U
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Abstract
The utility model discloses a kind of potassium steel crushing wall foundry goods rapid sequential coagulation system, comprise cope, sand mold, base, core, the upper surface of chilling block is fixed in the bottom of cope, the upper surface of base is fixed in the bottom of chilling block, sand mold is formed after cope filling moulding, core is by core print and cold mould Internal hole positioning, form the inner-cavity structure of crushing wall, molding sand is provided with cast passage and rising head, cast passage upper end extends to and communicates with the external world, cast passage extends downward core, and the forming part of port and crushing wall is through; The forming part of the through crushing wall of rising head is with extraneous; The inwall of chilling block corresponds to the important process position outer wall of crushing wall forming part; Cold mould forms water-flowing trough, and the outer wall of this water-flowing trough is right against the bottom of crushing wall forming part.It is tiny and without shrinkage cavity and porosity, cast sturcture without dreg defect that the utility model potassium steel crushing wall foundry goods rapid sequential coagulation system can ensure that crushing wall obtains crystal grain in casting process.
Description
Technical field
The utility model belongs to mechanical equipment technical field, is specifically related to a kind of potassium steel crushing wall foundry goods fast and consecutive solidification device.
Background technology
Gyratory crusher is that the industrial departments such as metallurgy, chemical industry, building materials, water power, mine, transport development carry out a kind of plant equipment broken or in small, broken bits to the various ore of different hardness or rock, and it has the features such as structure is reliable, smooth running, production efficiency are high, easy to adjust, product granularity is even.Its operation principle as shown in Figure 1, wherein: label 1 ' is rolled mortar wall, label 2 ' is crushing wall, label 3 ' is bevel gear, label 4 ' is eccentric swing mechanism.
In disintegrating machine, rolled mortar wall and crushing wall are two critical components in equipment operation process, and during disintegrating machine work, these two workpiece are subject to extruding, the impact of broken material and wear and tear, thus lost efficacy rapidly, therefore the quality of its working life decision device and operating efficiency.Improve the making quality of rolled mortar wall and crushing wall, particularly improve its wearability, the working life of disintegrating machine can be improved, increase work efficiency, reduce equipment loss.
The structure of rolled mortar wall is as shown in Fig. 2 a, 2b, and A portion is important process position, and rolled mortar wall in use needs to have good shock resistance and wear resistance.Therefore, the method that conventional high manganese steel material carries out casting produces crushing wall, but potassium steel is a kind of essential coarse grained metal material, and because heat treatment process is without phase transformation, heat treatment crystal grain thinning cannot be passed through, so high manganese steel casting is except requiring that foundry goods is without shrinkage cavity, shrinkage porosite, outside the casting flaws such as field trash, grain size size in casting original structure produces important impact to foundry goods shock resistance and anti-wear energy, for crushing wall foundry goods, acquisition crystal grain is tiny, without the cast sturcture of the defect such as shrinkage cavity shrinkage porosity and slag inclusion, it is a difficult problem in foundry production.
In existing crushing wall casting process scheme, the most frequently used is adopt sand casting technology, its founding method is as Fig. 3 a, shown in 3b, there are two kinds of process programs, in Fig. 3 a, running gate system 1a, feeding head 2a, molding sand 3a, crushing wall (foundry goods) 4a, cope 5a, drag box 6a, identical when orientation during rolled mortar wall casting and work, working position is in foundry goods bottom, but because working position foundry goods is thicker, foundry goods top is thinner, when solidifying, foundry goods top is first solidified, bottom after coagulation, owing to can not get the feeding of upper metal during the after coagulation of bottom, shrinkage cavity shrinkage porosity must be produced in working position, foundry goods bottom.Therefore, inevitably there is the defect of shrinkage cavity shrinkage porosity in foundry goods working position, affects service behaviour and service life.
In Fig. 3 b, running gate system 1b, feeding head 2b, molding sand 3b, crushing wall (foundry goods) 4b, cope 5b, drag box 6b, foundry goods working position upward, utilize rising head to carry out feeding to foundry goods working position, foundry goods consecutive solidification from bottom to up can be realized, avoid foundry goods to produce shrinkage porosity defect of contraction cavity, but because foundry goods working position is upper and contact with rising head, according to metal freezing principle, Inclusions During Solidification of Steel upwards floats, and this characteristic is assembled at field trash final set position.Then foundry goods working position field trash is many, and now, the important process position of foundry goods, on foundry goods top, belongs to final set position, and the casting solidification time is long, thus coarse grains.Therefore, foundry goods working position possibility is without shrinkage porosity defect of contraction cavity, but because of coarse grains, field trash is many, and shock resistance during foundry goods work and wear resistance must be poor, are not a kind of good process programs.
From the above analysis, simple sand casting is difficult to obtain high-quality potassium steel crushing wall foundry goods.
Utility model content
For solving an above-mentioned casting difficult problem, the utility model provides a kind of potassium steel crushing wall foundry goods rapid sequential coagulation system, and it is tiny and without shrinkage cavity and porosity, cast sturcture without dreg defect that it can ensure that the important process position of crushing wall particularly crushing wall obtains crystal grain in casting process.
For achieving the above object, the utility model takes following technical scheme: a kind of potassium steel crushing wall foundry goods rapid sequential coagulation system, comprise cope, sand mold, base, core, the upper surface of chilling block is fixed in the bottom of cope, the upper surface of base is fixed in the bottom of chilling block, sand mold is formed after cope filling moulding, core is by core print and cold mould Internal hole positioning, form the inner-cavity structure of crushing wall, molding sand is provided with cast passage and rising head, cast passage upper end extends to and communicates with the external world, cast passage extends downward core, the forming part of port and crushing wall is through, the forming part of the through crushing wall of rising head is with extraneous, the local interior wall of chilling block corresponds to the important process position outer wall of crushing wall forming part, cold mould forms water-flowing trough, and the outer wall of this water-flowing trough is right against the bottom of crushing wall forming part.
Preferably, base comprises pony sill, and cold mould forms the water-flowing trough described in a circle, and the notch of water-flowing trough outwardly; Pony sill inner ring forms a ring-shaped step, and cold mould is put on this step, and the upper surface of cold mould and the upper surface of pony sill maintain an equal level, and the water-flowing trough notch of cold mould is sealed by the inwall of pony sill.
Preferably, the contact position of cold mould and pony sill loads two sealing rings, and two sealing rings are in the upper and lower of water-flowing trough notch respectively.
Preferably, be fixedly connected with by attachment screw between cold mould with pony sill.
Preferably, if a water inlet pipe and outlet pipe, water inlet pipe is communicated with water-flowing trough from bottom through stretching into the water-flowing trough of cold mould after pony sill, and outlet pipe is communicated with water-flowing trough from bottom through stretching into the water-flowing trough of cold mould after pony sill, and water inlet pipe and water outlet pipe part are in opposite side.
Preferably, the lower surface of chilling block is put on the upper surface of cold mould and pony sill.
Preferably, chilling block with form locating hole corresponding up and down between pony sill, load alignment pin in locating hole.
Preferably, under cope, opening's edge is welded with the upper edge inner ring of chilling block.
The utility model relates to the process unit of important foundry goods on a kind of gyratory crusher-crushing wall casting, this technical scheme is compared with existing sand casting technology, adopt at foundry goods important process position and force cooling technology, while making foundry goods significant points obtain fine grain structure in process of setting, achieve consecutive solidification, avoid foundry goods to produce shrinkage cavity and porosity and inclusion defects, fundamentally solve the quality of rolled mortar wall casting.The results showed, the rolled mortar wall that this utility model technical scheme is produced, its service life be the 1.5-2 of existing ordinary sand casting method doubly.
Accompanying drawing explanation
Fig. 1 is gyratory crusher fundamental diagram.
Fig. 2 a, 2b are the structure charts of crushing wall.
Fig. 3 a, 3b are the two schemes of crushing wall sand casting.
Fig. 4 is overall structure figure.
Fig. 5 is understructure figure.
Fig. 6 a, 6b are the structure charts of pony sill.
Fig. 7 is the local structural graph of cold mould.
Fig. 8 is the structure chart of cope and chilling block.
Fig. 9 a, 9b are cast outer mold structure figure.
Figure 10 a, 10b are upper sand mold moulding figure.
Figure 11 a, 11b are core construction drawings.
Figure 12 a, 12b are core box structure charts.
In Fig. 4-12b, 1-running gate system, 2-rising head, 3-cope, 4-molding sand, 5-crushing wall, 6-chilling block, 7-cold mould, 8-alignment pin, 9-attachment screw, 10-sealing ring, 11-pony sill, 12-outlet pipe, 13-core, 14-water inlet pipe, 15-moulding external mold, 16-core box, 17-base plate, 18-clamp wedge.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model preferred embodiment is done in detail.
See Fig. 4-12b, the present embodiment single unit system comprises cope 3, core 13, base, cope 3 times opening's edges are welded with the upper edge inner ring of chilling block 6 and in integrated, chilling block 6 forms chilling effect at the casting solidification initial stage, make foundry goods critical surfaces form good fine grain structure.Cope 3 and chilling block 6 are welded into a whole structure as shown in Figure 8, and B place is weld seam.
As shown in Figure 5, base comprises pony sill 11 (Fig. 6 a, 6b), cold mould 7 (Fig. 7), and these two parts constitute the main body of base.Cold mould 7 forms a circle water-flowing trough 7-1, and the notch of water-flowing trough 7-1 outwardly.Pony sill 11 inner ring forms one and shelves step 11-1, and cold mould 7 is put on this step 11-1, and the upper surface of cold mould 7 and the upper surface of pony sill 11 maintain an equal level, and the water-flowing trough notch of cold mould 7 is sealed by the inwall of pony sill 11.
Be fixedly connected with by attachment screw 9 between cold mould 7 with pony sill 11.Water inlet pipe 14 is communicated with water-flowing trough 7-1 from bottom through stretching into the water-flowing trough 7-1 of cold mould 7 after pony sill 11, outlet pipe 12 is also communicated with water-flowing trough 7-1 from bottom through stretching into the water-flowing trough 7-1 of cold mould 7 after pony sill 11, water inlet pipe 14 and outlet pipe 12 are in opposite side, above-mentionedly constitute pressure cooling system, impel foundry goods to cool successively from bottom to up.
Cold mould 7 loads sealing ring 10 with the contact position (at least two places are in the top and the bottom of water-flowing trough 7-1 notch respectively) of pony sill 11.
The lower surface of chilling block 6 is put on the upper surface of cold mould 7 and pony sill 11, and chilling block 6 forms locating hole corresponding up and down with between pony sill 11, loads alignment pin 8 in locating hole.
Cold mould 7 adopts fine copper to be made, there is good thermal conductivity factor, cold mould 7 flows out the formation pressure cooling effect of foundry goods bottom by flowing to of cooling water in the course of the work, the interaction of cold mould 7 and chilling block 6, while ensureing that foundry goods obtains fine grain solidified structure, realize foundry goods and solidify successively from bottom to up, make the field trash in foundry goods enter in rising head 2, avoid foundry goods to produce shrinkage cavity shrinkage porosity, thus realize the control of crushing wall high-quality Foundry Production.
In casting solidification process, under gravity, crushing wall 5 lower end surface and cold mould 7 close contact always, thus ensure that crushing wall 5 derives heat from cold mould 7 in process of setting, keeps the carrying out of consecutive solidification to foundry goods.
Become sand mold 4 after cope 3 filling moulding, form die cavity by external mold 15, external mold adopts metal pattern, and its mould structure is as shown in Fig. 9 a, 9b.
Rising head 2 needed for technique and cast passage 1 are made up of corresponding insulating riser sleeve and refractory tube, and directly imbed in sand mold 4 during moulding, directly utilize chilling block 7 to locate during molding operation, its operating process is as shown in Figure 10 a, 10b.
Core 13 forms the inner-cavity structure of crushing wall 5, and rely on core print 13-1 and cold mould endoporus 7-2 to locate, running gate system 1 is imbedded in core 13 by refractory tube and is directly formed running gate system passage, and wherein sprue should centre in core 13, and corresponding with the refractory tube position of cope 3.
Core 13, by core box 16 filling moulding, is sealed by base plate 17 bottom core box, and its molding operation is as shown in Figure 11 a, 11b.
Core box structure is as shown in Figure 12 a, 12b, and core box 16 is made up of halves, and halves forms two corresponding salient angles, and during coremaking, halves is relatively spliced and adopts wedge shape clamping plate 18 to be clamped in the corresponding salient angle of halves.
At base, after core and cope mould assembling form die cavity, by running gate system casting of molten metal, when molten metal solidifies, crushing wall working face is under the chilling effect of chilling block, working face rapid solidification, form fine grain district, but because working face is outside wall surface, the working face of crushing wall and chilling block is made to form gap because shrinking when temperature declines, cooling effect weakens, therefore devise by the cold mould of water quench in the lower surface of crushing wall, in crushing wall process of setting, foundry goods under gravity, lower surface and cold mould fit tightly, cold mould is under the effect of cooling water, keep larger cooling capacity and heat-sinking capability, the heat that casting solidification produces constantly cooled water-band is walked, impel the temperature that foundry goods lower end remains lower, thus the solidification sequence formed from bottom to up, the Slag inclusion produced in process of setting is made to enter foundry goods top until rising head, ensure bottom foundry goods and outer wall working face obtains fine and close and that crystal grain is tiny solidified structure, ensure that foundry goods obtains high-quality quality.
Adopt the utility model process unit to carry out crushing wall castings production, compared with traditional sand casting technology, have the following advantages:
1. foundry goods working position crystal grain is tiny, avoids shrinkage cavity and porosity defect, avoids field trash in foundry goods working position, thus the casting quality produced by the utility model device is good, long service life, production practices show, its service life is 1.5 ~ 2 times of common sand-cast life-span of the same type.
2. in the utility model apparatus structure, base is permanent structure, forms the nowel of foundry goods, when casting and molding is produced, only need make sand mold 4 and core 13, required molding operation is simple, molding sand use amount is few, about its molding sand use amount only has the half of ordinary sand casting.Therefore, moulding expense is few, and cost is low.
3. can be reduced the labour intensity of workman by the utility model device, casting accuracy is higher simultaneously, is applicable to the production in enormous quantities of crushing wall.
Claims (8)
1. potassium steel crushing wall foundry goods rapid sequential coagulation system, comprise cope, sand mold, base, core, it is characterized in that: the upper surface of chilling block is fixed in the bottom of cope, the upper surface of base is fixed in the bottom of chilling block, sand mold is formed after cope filling moulding, core is by core print and cold mould Internal hole positioning, form the inner-cavity structure of crushing wall, molding sand is provided with cast passage and rising head, cast passage upper end extends to and communicates with the external world, cast passage extends downward core, and the forming part of port and crushing wall is through; The forming part of the through crushing wall of rising head is with extraneous; The local interior wall of chilling block corresponds to the important process position outer wall of crushing wall forming part; Cold mould forms water-flowing trough, and the outer wall of this water-flowing trough is right against the bottom of crushing wall forming part.
2. potassium steel crushing wall foundry goods rapid sequential coagulation system as claimed in claim 1, is characterized in that: base comprises pony sill; Described cold mould forms the water-flowing trough described in a circle, and the notch of water-flowing trough outwardly; Pony sill inner ring forms a ring-shaped step, and cold mould is put on this step, and the upper surface of cold mould and the upper surface of pony sill maintain an equal level, and the water-flowing trough notch of cold mould is sealed by the inwall of pony sill.
3. potassium steel crushing wall foundry goods rapid sequential coagulation system as claimed in claim 2, is characterized in that: the contact position of cold mould and pony sill loads two sealing rings, and two sealing rings are in the upper and lower of water-flowing trough notch respectively.
4. potassium steel crushing wall foundry goods rapid sequential coagulation system as claimed in claim 2, be is characterized in that: be fixedly connected with by attachment screw between cold mould with pony sill.
5. the potassium steel crushing wall foundry goods rapid sequential coagulation system as described in any one of claim 2-4, it is characterized in that: establish a water inlet pipe and outlet pipe, water inlet pipe is communicated with water-flowing trough from bottom through stretching into the water-flowing trough of cold mould after pony sill, outlet pipe is communicated with water-flowing trough from bottom through stretching into the water-flowing trough of cold mould after pony sill, and water inlet pipe and water outlet pipe part are in opposite side.
6. the potassium steel crushing wall foundry goods rapid sequential coagulation system as described in any one of claim 2-4, is characterized in that: the lower surface of chilling block is put on the upper surface of cold mould and pony sill.
7. potassium steel crushing wall foundry goods rapid sequential coagulation system as claimed in claim 6, is characterized in that: chilling block with form locating hole corresponding up and down between pony sill, load alignment pin in locating hole.
8. potassium steel crushing wall foundry goods rapid sequential coagulation system as claimed in claim 1, is characterized in that: under cope, opening's edge is welded with the upper edge inner ring of chilling block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520236503.9U CN204603225U (en) | 2015-04-17 | 2015-04-17 | Potassium steel crushing wall foundry goods rapid sequential coagulation system |
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| CN201520236503.9U CN204603225U (en) | 2015-04-17 | 2015-04-17 | Potassium steel crushing wall foundry goods rapid sequential coagulation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759594A (en) * | 2015-04-17 | 2015-07-08 | 浙江机电职业技术学院 | Fast progressive solidification device for high manganese steel broken wall casting |
| CN106141094A (en) * | 2016-08-22 | 2016-11-23 | 宝鸡连众铸业有限公司 | The casting new method of seat is supported in wind power plant |
-
2015
- 2015-04-17 CN CN201520236503.9U patent/CN204603225U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759594A (en) * | 2015-04-17 | 2015-07-08 | 浙江机电职业技术学院 | Fast progressive solidification device for high manganese steel broken wall casting |
| CN106141094A (en) * | 2016-08-22 | 2016-11-23 | 宝鸡连众铸业有限公司 | The casting new method of seat is supported in wind power plant |
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