CN201997360U - Grinding ring of composite type Raymond grinding machine - Google Patents
Grinding ring of composite type Raymond grinding machine Download PDFInfo
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- CN201997360U CN201997360U CN2011200063553U CN201120006355U CN201997360U CN 201997360 U CN201997360 U CN 201997360U CN 2011200063553 U CN2011200063553 U CN 2011200063553U CN 201120006355 U CN201120006355 U CN 201120006355U CN 201997360 U CN201997360 U CN 201997360U
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- Prior art keywords
- layer
- grinding
- bull ring
- compound
- raymond mill
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- 238000000227 grinding Methods 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims abstract description 7
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 244000309464 bull Species 0.000 claims description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 2
- 230000007850 degeneration Effects 0.000 abstract 1
- 230000003116 impacting effect Effects 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 8
- 229910052700 potassium Inorganic materials 0.000 description 8
- 239000011591 potassium Substances 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005482 strain hardening Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a wearing-resisting part of grinding equipment, belonging to the technical field of the grinding equipment, in particular to a grinding ring of a composite type Raymond grinding machine. The grinding ring mainly comprises an outer force bearing layer and an inner grinding layer, wherein the outer force bearing layer adopts high-tenacity nodular cast iron; the inner grinding layer is cast by high-hardness degeneration high alloy cast iron by composite centrifuging; and the outer force bearing layer and the inner grinding layer are in metallurgical bonding. The grinding ring has high wear-resisting property, can meet the requirement on force bearing and is not limited by the material property and the impacting condition, thereby having wide application scope.
Description
Technical field
The utility model relates to a kind of wear parts of abrasive dust equipment machine, and especially a kind of compound Raymond mill bull ring belongs to the milling apparatus technical field.
Background technology
Raymond mill is a kind of typical powder manufacturing apparatus, and the bull ring on it is a consumable accessory, to withstand shocks and abrasive wear in the work, thus require the material of bull ring to have good abrasion-resistance, enough intensity and certain impact flexibility.At present the bull ring material is used more to be ZGMn13 potassium steel, through the tough austenite structure that is treated to of water, very high toughness to be arranged, and the hardness after the work hardening can be increased to HB450～550, impacts strongly more, and abrasion-resistance is brought into play well more.In fact, potassium steel bull ring skin when work is the austenite structure of high strength, high tenacity, makes bull ring not rupture under impact loading; And the endosexine is the work hardening tissue of high rigidity, improves wearability, the abrasive action of bearing abrasive material.But austenite only when intense impact, squeezing action, takes place when Martensite Transformation in potassium steel, and the endosexine metal just has higher wearability.Therefore grinding the not high material of some hardness, during as coal, manganese dioxide, the potassium steel bull ring is owing to low its wearability that makes of workhardness degree of inner layer metal can not get performance, the lost of life of bull ring.
Therefore, can design a kind of novel Raymond mill bull ring,, become the technical barrier that those skilled in the art need to be resolved hurrily to overcome above-mentioned defective.
The utility model content
In order to solve the problems of the technologies described above, the utility model aims to provide a kind of compound Raymond mill bull ring that is suitable for various grinding materials, it can overcome the defective that wears no resistance that traditional Raymond machine potassium steel bull ring exists under the not enough situation of impulsive force, thereby reduces the maintenance of bull ring and change number of times.Its technical scheme that adopts is as follows:
This compound Raymond mill bull ring mainly comprises: outer bearing layer and internal layer grinding layer, and described outer bearing layer adopts spheroidal graphite cast-iron, the rotten high alloy iron of described internal layer grinding layer employing.
Preferably, described outer bearing layer and internal layer grinding layer adopt the preparation of centrifugal composite casting method, realize metallurgical binding between two-layer.
Preferably, the thickness of the external diameter of described bull ring and described spheroidal graphite cast-iron is according to all size of different Raymond mills and the requirement of strength of bull ring is determined; The height of described bull ring is the integral multiple of Raymond mill specification requirement.
Preferably, the thickness of described outer bearing layer is between 40～80mm.
Preferably, the thickness of the high alloy iron of described internal layer grinding layer is between 10～30mm, and HRC hardness is 63-65.
Compared with prior art, the utlity model has following advantage:
1, inner layer metal adopts rotten high alloy iron, does not need to improve wearability by work hardening, therefore is applicable to the grinding of different material, and applicability is wide, improves the service life of bull ring, reduces bull ring and changes number of times, saves maintenance time, enhances productivity;
2, outer base metal is the spheroidal graphite cast-iron of low material cost, and has avoided the water toughening treatment process, and overall material and production cost reduce, and more traditional bull ring has higher cost performance;
3, traditional potassium steel melting, Technology for Heating Processing control are difficult, and demanganize phenomenon in top layer takes place during the water patent easily, make the performance of potassium steel bull ring be difficult to control, properties of product instability; Spheroidal graphite cast-iron and high alloy iron production technology that the utility model adopts are simple, and composition and performance are easy to control, and the quality conformance of compound bull ring is good.
Description of drawings
Fig. 1: the sectional structure chart of compound Raymond mill bull ring of the present utility model.
Symbol description: 1, outer bearing layer; 2, internal layer grinding layer.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and example:
An embodiment of the present utility model as shown in Figure 1, this compound Raymond mill bull ring mainly comprises: outer bearing layer 1 and internal layer grinding layer 2, and outer bearing layer is preferably spheroidal graphite cast-iron, its intensity and toughness reach the level of the potassium steel after the water patent; The internal layer grinding layer is preferably rotten high alloy iron, has high rigidity and high abrasion characteristic.
Outer bearing layer 1 and internal layer grinding layer 2 can adopt the preparation of centrifugal composite casting method, realize metallurgical binding between two-layer: promptly adopt centre spinning method to water earlier and cast out the outer bearing layer 1 of high-tenacity nodular cast iron, when treating that the outer shroud temperature is reduced to 1100 ℃-1200 ℃, the same rotten high alloy iron internal layer grinding layer 2 that adopts centre spinning method casting high rigidity makes inside and outside layer reach metallurgical binding.
According to all size of different Raymond mills and to the requirement of strength of bull ring, determine the external diameter of bull ring and the thickness of outer spheroidal graphite cast-iron, the thickness of outer bearing layer 1 for example (contains allowance) between 40～80mm, to reach the load requirement of bull ring; The height of bull ring can be the integral multiple of Raymond mill specification requirement, treat that composite casting is finished after, can cut into a plurality of bull rings.
According to all size of different Raymond machines and the object of grinding, determine the thickness of bull ring internal layer High-Hardness Cast Iron, for example between 10～30mm, (contain allowance), HRC hardness for example reaches 63-65, to reach the high abrasion requirement of bull ring.
With way of example the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment, all any change or modification of doing based on the utility model all belong to the claimed scope of the utility model.
Claims (5)
1. a compound Raymond mill bull ring is characterized in that, comprising: outer bearing layer (1) and internal layer grinding layer (2), and described outer bearing layer (1) adopts spheroidal graphite cast-iron, the rotten high alloy iron of described internal layer grinding layer (2) employing.
2. compound Raymond mill bull ring according to claim 1 is characterized in that, described outer bearing layer (1) and internal layer grinding layer (2) adopt the preparation of centrifugal composite casting method, realizes metallurgical binding between two-layer.
3. compound Raymond mill bull ring according to claim 1 is characterized in that, the external diameter of described bull ring and the thickness of described spheroidal graphite cast-iron are according to all size of different Raymond mills and the requirement of strength of bull ring is determined; The height of described bull ring is the integral multiple of Raymond mill specification requirement.
4. compound Raymond mill bull ring according to claim 1 is characterized in that the thickness of described outer bearing layer (1) is between 40～80mm.
5. compound Raymond mill bull ring according to claim 1 is characterized in that the thickness of the high alloy iron of described internal layer grinding layer (2) is between 10～30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200063553U CN201997360U (en) | 2011-01-11 | 2011-01-11 | Grinding ring of composite type Raymond grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200063553U CN201997360U (en) | 2011-01-11 | 2011-01-11 | Grinding ring of composite type Raymond grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201997360U true CN201997360U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200063553U Expired - Fee Related CN201997360U (en) | 2011-01-11 | 2011-01-11 | Grinding ring of composite type Raymond grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201997360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103667938A (en) * | 2013-11-20 | 2014-03-26 | 山东京泰耐磨材料有限责任公司 | High alloy semisteel centrifugation composite Raymond mill grinding ring and manufacturing method |
| CN105536934A (en) * | 2016-01-27 | 2016-05-04 | 建始县楚瑜精密铸造有限责任公司 | Grinding structure used for Raymond mill and casting method of grinding structure |
-
2011
- 2011-01-11 CN CN2011200063553U patent/CN201997360U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103667938A (en) * | 2013-11-20 | 2014-03-26 | 山东京泰耐磨材料有限责任公司 | High alloy semisteel centrifugation composite Raymond mill grinding ring and manufacturing method |
| CN103667938B (en) * | 2013-11-20 | 2015-08-12 | 山东京泰耐磨材料有限责任公司 | High alloy half steel centrifugal compound Raymond mill bull ring and manufacture method |
| CN105536934A (en) * | 2016-01-27 | 2016-05-04 | 建始县楚瑜精密铸造有限责任公司 | Grinding structure used for Raymond mill and casting method of grinding structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20150111 |
|
| EXPY | Termination of patent right or utility model |