CN218078325U - Wear-resistant structure - Google Patents
Wear-resistant structure Download PDFInfo
- Publication number
- CN218078325U CN218078325U CN202221830030.1U CN202221830030U CN218078325U CN 218078325 U CN218078325 U CN 218078325U CN 202221830030 U CN202221830030 U CN 202221830030U CN 218078325 U CN218078325 U CN 218078325U
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- CN
- China
- Prior art keywords
- stud
- wear
- resistant
- end part
- base body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 239000000956 alloy Substances 0.000 claims description 26
- 229910045601 alloy Inorganic materials 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000003466 welding Methods 0.000 claims description 15
- 229910001339 C alloy Inorganic materials 0.000 claims description 10
- 229910001018 Cast iron Inorganic materials 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 239000011651 chromium Substances 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 6
- 229910000599 Cr alloy Inorganic materials 0.000 claims description 5
- 229910000997 High-speed steel Inorganic materials 0.000 claims description 5
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 5
- 239000000788 chromium alloy Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 19
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 13
- INZDTEICWPZYJM-UHFFFAOYSA-N 1-(chloromethyl)-4-[4-(chloromethyl)phenyl]benzene Chemical compound C1=CC(CCl)=CC=C1C1=CC=C(CCl)C=C1 INZDTEICWPZYJM-UHFFFAOYSA-N 0.000 description 4
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 4
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 229910003470 tongbaite Inorganic materials 0.000 description 4
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- WHROWQPBDAJSKH-UHFFFAOYSA-N [Mn].[Ni].[Cr] Chemical compound [Mn].[Ni].[Cr] WHROWQPBDAJSKH-UHFFFAOYSA-N 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000251131 Sphyrna Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005552 hardfacing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a wear-resisting structure, include: the stud comprises a first end part and a second end part, wherein the first end part of the stud is cast in the base body in an embedding way, and the second end part of the stud extends out of the base body; a portion of the base extends into the cavity of the first end of the stud and is metallurgically bonded to the inner wall of the first end. The utility model discloses the fastness that the stud combines with the base member is higher, consequently, the degree of depth that the base member was buried into to the stud reduces, also is favorable to saving the stud material, reduce cost.
Description
Technical Field
The utility model relates to a grinding crushing equipment technical field especially relates to a wear-resisting structure for grinding is broken.
Background
In the industries of cement, mines, electric power, coal, chemical industry and the like, materials are often required to be ground and crushed. In the grinding and crushing operation, a vertical mill, a roll squeezer or a crusher needs to have a wear-resistant structure with higher strength to withstand the impact, extrusion and friction of materials. The wear-resistant structures mainly comprise grinding rolls of a vertical mill, squeeze rolls of a roll squeezer, drill bits of a shield machine or hammer heads of a crusher. These wear resistant structures may be made of diamond-like materials having relatively high wear resistance.
In order to prolong the service life of wear-resistant structures such as grinding rollers, squeeze rollers, hammers or drill bits in grinding and crushing operations, the prior art generally adopts a structure of surfacing wear-resistant alloy materials on a wear-resistant structure matrix and embedding studs made of hard materials, or a structure of surfacing wear-resistant alloy materials and embedding hard studs to improve the wear resistance of the wear-resistant structure.
There are various ways of embedding studs on the wear-resistant structural substrate, such as brazing, spot welding, insert casting, interference fit, etc. The combination strength of the stud and the base body is not enough by using modes of brazing, spot welding and the like, and the stud is easy to detach. Stud is inlayed through interference fit between the pore structure on stud and the base member, can make and take place stress concentration very easily between base member and the stud, leads to the base member material to take place stress fatigue easily and reduce wear-resisting structure's life-span. The stud is placed in a sand mold, and the wear-resistant structural matrix is cast and formed in the sand mold, so that the wear-resistant structural matrix and the stud can be metallurgically bonded, and the bonding strength of the wear-resistant structural matrix and the stud is relatively high. Therefore, it is a common solution to inlay studs on a wear-resistant structural substrate by insert casting. In the scheme of the stud, a part of a cylinder of the stud needs to extend into the base body, a part of the cylinder extends out of the base body, a part of the stud extending out of the base body directly contacts with the material to bear friction, impact or extrusion of the material, and a part of the stud extending into the base body needs to maintain strong combination with the base body. The design of the length of the stud extending into the base body is influenced by the working condition, the length of the stud, whether the surface of the base body is subjected to surfacing welding and the like. In order to prevent the stud from falling out of the base body, the stud needs to extend into the base body by a certain length so that the base body has enough holding force for the stud. The longer the stud extends into the base body, the higher the bonding strength of the base body and the stud and the lower the risk of falling of the stud. However, the longer the stud extends into the substrate, the more material is consumed and the higher the cost.
Therefore, it is necessary to provide a technical solution which is more widely applicable and can effectively improve the fastness of the stud embedded in the wear-resistant structural substrate.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a wear-resisting structure, can effectively promote the fastness that the stud was inlayed on wear-resisting structure's base member.
In order to solve the technical problem, the utility model discloses a technical scheme be: a wear resistant structure comprising: the stud comprises a base body and a plurality of studs, wherein each stud comprises a first end part and a second end part, the first end part of each stud is of a hollow structure, the first end parts of the studs are cast in the base body in an embedding mode, and the second end parts of the studs extend out of the base body; the base is metallurgically bonded to an outer wall of the first end portion, and a portion of the base extends into the cavity of the first end portion and metallurgically bonds to an inner wall of the first end portion.
The second end part of the stud is of a hollow structure, and part of the base body extends into the cavities of the first end part and the second end part of the stud and is metallurgically bonded with the inner walls of the first end part and the second end part.
The second tip of stud is hollow structure, the cavity of the second tip of stud is filled by the wear-resisting welding wire build-up welding.
The second end of the stud is of solid construction.
And a wear-resistant alloy layer is overlaid in the area between the studs on the base body, and the wear-resistant alloy layer is metallurgically bonded with the outer wall of the second end part of the stud.
The depth of the first end part cast in the base body is 65-75% of the whole length of the stud.
The matrix comprises one of heat-resistant steel, high-manganese steel, low-carbon alloy steel, medium-carbon alloy steel, high-speed steel, high-chromium cast iron, high-chromium alloy steel and the like.
The stud is made of hard alloy.
The carbide type in the hard alloy comprises one or more of titanium carbide, tungsten carbide, chromium carbide, vanadium carbide, niobium carbide, silicon carbide and the like.
And wear-resistant dots are formed on the end surfaces of the studs extending out of the second end parts of the wear-resistant structures in a spot welding mode.
The utility model has the advantages that: the utility model discloses a stud one end stretches out the base member, and the one end that stretches out the base member promotes wear-resisting property of wear-resisting structure, and the other end of stud stretches into the base member to through hollow structure, it is right to realize the base member the inner wall of the other end and the two-way centre gripping of the metallurgical bonding form of outer wall. Consequently, need stretch out the base member when promoting the wearability at the stud, the stud just need bury the corresponding length of base member in order to guarantee the fastness, and the utility model discloses a base member is right hollow structure buries the two-way centre gripping of base member one end, can effectively promote the fastness to can reduce the length that the stud buried the base member, reduce cost.
Drawings
Fig. 1 is a schematic cross-sectional view of a first embodiment of a wear-resistant structure according to the present invention.
Fig. 2 is another schematic view of a first embodiment of a wear resistant structure according to the present invention.
Fig. 3 is a schematic cross-sectional view of a second embodiment of a wear-resistant structure according to the present invention.
Fig. 4 is a schematic cross-sectional view of a third embodiment of a wear-resistant structure according to the present invention.
Detailed Description
The following description of the preferred embodiments of the present invention will be provided with reference to the accompanying drawings, so that the advantages and features of the present invention can be easily understood by those skilled in the art, and the scope of the present invention can be clearly and clearly defined.
The embodiment of the utility model provides an in wear-resisting structure can be the grinding roller of vertical mill equipment, the squeeze roll of roll squeezer, or the tup of breaker, also can be the wear-resisting structure that is used for grinding or breakage of other forms.
Referring to fig. 1, a wear-resistant structure 10 according to a first embodiment of the present invention includes: a base 11 and a plurality of studs 12. Stud 12 includes a first end 121 and a second end 122. The first end portion 121 is cast-in the base body 11, and the second end portion 122 protrudes out of the base body 11. The depth of the first end portion 121 cast-in the base body 11 is 65% to 75% of the entire length of the stud 12. The first end portion 121 and the second end portion 122 are formed with cavities that penetrate each other in the axial direction.
The base body 11 is cast from molten alloy steel. In cast molding, the stud 12 is fixed in a sand mold, and the molten alloy steel flows into the cavities in the first and second ends 121 and 122 of the stud 12, forming the protrusions 111 that extend into the cavities in the first and second ends 121 and 122, and metallurgically bonds with the inner walls of the cavities in the first and second ends 121 and 122. At the same time, the substrate 11 is metallurgically bonded to the outer wall of the first end portion 121.
The material of the substrate 11 includes one of heat-resistant steel, high-manganese steel, low-carbon alloy steel, medium-carbon alloy steel, high-speed steel, high-chromium cast iron, high-chromium alloy steel and the like.
The stud 12 is made of hard alloy or ceramic material. The hard alloy contains carbide type hard phase, including one or more of titanium carbide, tungsten carbide, chromium carbide, vanadium carbide, niobium carbide, silicon carbide and the like.
In this embodiment, because the base 11 is metallurgically bonded to the outer wall of the first end 121 of the stud 12 and the inner walls of the cavities in the first end 121 and the second end 122 at the same time, the base 11 can form a double-sided clamp to the inner and outer walls of the stud 12, and the stud 12 is embedded in the base 11 with better firmness, so that the stud 12 can still ensure that the stud 12 and the base 11 have a sufficient metallurgical bonding surface after the stud 12 extends into the base 11 to a reduced length, and thus the material of the stud 12 can be saved and the cost can be reduced.
Referring to fig. 2, a wear-resistant alloy layer 13 may be further deposited on the substrate 11. The wear-resistant alloy layer 13 is formed in the gap between the studs 12 by overlaying, and the overlaying alloy layer 13 and the outer wall of the second end portion 122 of the stud 12, which extends out of the base body, can also be metallurgically bonded.
The end face of stud 12 that protrudes beyond second end 122 of base 11 may also be spot welded to form wear-resistant dot 14.
The material of the surfacing wear-resistant alloy layer 13 can be manganese-nickel-chromium type stainless steel welding wires or high-chromium cast iron welding wires.
Referring to fig. 3, a wear-resistant structure 20 according to a second embodiment of the present invention includes: a base 11 and a plurality of studs 12. Stud 12 includes a first end 121 and a second end 122. The first end portion 121 is cast-in the base body 11, and the second end portion 122 protrudes out of the base body 11. The depth of the first end portion 121 cast-in the base body 11 is 65% to 75% of the entire length of the stud 12. The first end portion 121 and the second end portion 122 are formed with cavities that penetrate each other in the axial direction.
The base body 11 is cast from molten alloy steel. In cast molding, the stud 12 is fixed in a sand mold and the molten alloy flows into the cavities in the first end 121 and the second end 122 of the stud 12, forming a metallurgical bond with the inner walls of the cavity in the first end 121 that extends into the first end 121. At the same time, the substrate 11 is metallurgically bonded to the outer wall of the first end portion 121. The base body 11 forms a bidirectional clamp with the inner wall and the outer wall of the first end portion 121 of the stud 12, and the firmness of the stud 12 can be effectively improved. The cavity in the second end 122 of the stud 12 is filled with a hardfacing 15. Since the end surface of the second end 122 of the stud 12 directly contacts with the material and is impacted by the material, the wear resistance of the stud 12 can be improved by filling the cavity in the second end 122 with a wear-resistant welding wire.
The material of the substrate 11 includes one of heat-resistant steel, high-manganese steel, low-carbon alloy steel, medium-carbon alloy steel, high-speed steel, high-chromium cast iron, high-chromium alloy steel and the like.
The stud 12 is made of cemented carbide or ceramic material. The hard alloy contains carbide type hard phase, including one or more of titanium carbide, tungsten carbide, chromium carbide, vanadium carbide, niobium carbide, silicon carbide and the like.
A wear-resistant alloy layer 13 may further be deposited on the substrate 11. The wear-resistant alloy layer 13 is formed in the gap between the studs 12 by overlaying, and the overlaying alloy layer 13 and the outer wall of the second end portion 122 of the stud 12, which extends out of the base body, can also be metallurgically bonded.
The stud 12 may also be spot welded with a wear point 14 on the end surface extending beyond the second end 122 of the base 11.
The material of the surfacing wear-resistant alloy layer 13 can be manganese-nickel-chromium type stainless steel welding wires or high-chromium cast iron welding wires.
Referring to fig. 4, a wear-resistant structure 30 according to a third embodiment of the present invention includes: a base 11 and a plurality of studs 32. Stud 32 includes a first end 321 and a second end 322. The first end 321 is a hollow structure having a cavity. The first end portion 321 is cast-in the base body 11, and the base body 11 is metallurgically bonded to the outer wall of the first end portion 321. The depth of the first end 321 cast-in the base 11 is 65% to 75% of the overall length of the stud 32. A portion of substrate 11 extends into the cavity of first end 321 and is metallurgically bonded to the inner wall of first end 321. The second end 322 is a solid structure, and the second end 322 extends out of the base 11. The base 11 forms a bidirectional grip with the inner and outer walls of the first end 321 of the stud 32, which can effectively improve the firmness of the stud 32. The second end 322 extends out of the base 11 and is in direct contact with the material during operation, so as to improve the wear resistance of the wear-resistant structure.
The material of the substrate 11 includes one of heat-resistant steel, high manganese steel, low carbon alloy steel, medium carbon alloy steel, high speed steel, high chromium cast iron, high chromium alloy steel, and the like.
The stud 32 is made of cemented carbide or ceramic material. The hard alloy contains carbide type hard phase, including one or more of titanium carbide, tungsten carbide, chromium carbide, vanadium carbide, niobium carbide, silicon carbide and the like.
A wear-resistant alloy layer 13 may further be deposited on the substrate 11. The wear-resistant alloy layer 13 is formed in the gap between the studs 32 by overlaying, and the overlaying alloy layer 13 and the outer wall of the second end portion 322 of the stud 32 extending out of the base body can also realize metallurgical bonding.
The end of stud 32 that extends beyond second end 322 of base 11 may also be spot welded to form wear resistant dots 14.
The material of the surfacing wear-resistant alloy layer 13 can be manganese-nickel-chromium type stainless steel welding wires or high-chromium cast iron welding wires.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. A wear resistant structure comprising: base member and a plurality of stud, the stud includes first end and second end, its characterized in that: the first end part of the stud is of a hollow structure, the first end part of the stud is cast in the base body in an embedding way, and the second end part of the stud extends out of the base body; the base is metallurgically bonded to an outer wall of the first end portion, and a portion of the base extends into the cavity of the first end portion and metallurgically bonds to an inner wall of the first end portion.
2. The wear resistant structure of claim 1, wherein: the second end part of the stud is of a hollow structure, and part of the base body extends into the cavities of the first end part and the second end part of the stud and is metallurgically bonded with the inner walls of the first end part and the second end part.
3. The wear resistant structure of claim 1, wherein: the second end of the stud is of a hollow structure, and a cavity of the second end of the stud is filled with a wear-resistant welding wire in a surfacing mode.
4. The wear resistant structure of claim 1, wherein: the second end of the stud is of solid construction.
5. The wear resistant structure of claim 1, wherein: and a wear-resistant alloy layer is overlaid in the area between the studs on the base body, and the wear-resistant alloy layer is metallurgically bonded with the outer wall of the second end part of the stud.
6. The wear resistant structure of claim 1, wherein: the depth of the first end part cast in the base body is 65-75% of the whole length of the stud.
7. The wear resistant structure of claim 1, wherein: the matrix comprises one of heat-resistant steel, high-manganese steel, low-carbon alloy steel, medium-carbon alloy steel, high-speed steel, high-chromium cast iron, high-chromium alloy steel and the like.
8. The wear resistant structure of claim 1, wherein: the stud is made of hard alloy.
9. The wear resistant structure of claim 1, wherein: and wear-resistant dots are formed on the end surfaces of the studs extending out of the second end parts of the wear-resistant structures in a spot welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221830030.1U CN218078325U (en) | 2022-07-15 | 2022-07-15 | Wear-resistant structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221830030.1U CN218078325U (en) | 2022-07-15 | 2022-07-15 | Wear-resistant structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218078325U true CN218078325U (en) | 2022-12-20 |
Family
ID=84480253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221830030.1U Withdrawn - After Issue CN218078325U (en) | 2022-07-15 | 2022-07-15 | Wear-resistant structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218078325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055269A (en) * | 2022-07-15 | 2022-09-16 | 郑州机械研究所有限公司 | Wear-resistant structure and preparation method thereof |
-
2022
- 2022-07-15 CN CN202221830030.1U patent/CN218078325U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055269A (en) * | 2022-07-15 | 2022-09-16 | 郑州机械研究所有限公司 | Wear-resistant structure and preparation method thereof |
| CN115055269B (en) * | 2022-07-15 | 2024-03-26 | 郑州机械研究所有限公司 | Wear-resistant structure and preparation method thereof |
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Granted publication date: 20221220 Effective date of abandoning: 20240326 |
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Granted publication date: 20221220 Effective date of abandoning: 20240326 |