CN110439581B - Wear-resistant material, wear-resistant cutter ring and shield tunneling machine - Google Patents
Wear-resistant material, wear-resistant cutter ring and shield tunneling machine Download PDFInfo
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- CN110439581B CN110439581B CN201910833131.0A CN201910833131A CN110439581B CN 110439581 B CN110439581 B CN 110439581B CN 201910833131 A CN201910833131 A CN 201910833131A CN 110439581 B CN110439581 B CN 110439581B
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- 239000000463 material Substances 0.000 title claims abstract description 50
- 230000005641 tunneling Effects 0.000 title claims description 7
- 239000002245 particle Substances 0.000 claims abstract description 119
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 239000000956 alloy Substances 0.000 claims description 19
- 239000010439 graphite Substances 0.000 claims description 19
- 229910002804 graphite Inorganic materials 0.000 claims description 19
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910003470 tongbaite Inorganic materials 0.000 claims description 3
- 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 claims description 3
- 239000008187 granular material Substances 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000011230 binding agent Substances 0.000 description 11
- 239000011435 rock Substances 0.000 description 7
- 239000004575 stone Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The application provides a wear-resistant material, a wear-resistant cutter ring and a shield machine, and relates to the field of shield machine parts, wherein the wear-resistant material comprises wear-resistant particles, and the mass percentage of the wear-resistant particles in the wear-resistant material in unit mass is 60-80%; an easily-shedding particle which accounts for 3 to 5 mass percent of the wear-resistant material per unit mass; and the adhesive is used for bonding the wear-resistant particles and the easy-to-fall particles. The wear-resistant cutter ring comprises a wear-resistant material and a cutter ring main body, wherein the wear-resistant material is built-up welded on the working surface of the cutter ring main body. This application is through the wear-resisting material surfacing in the working surface of cutter ring main part that mixes the preparation with certain proportion wear-resisting granule, the granule that easily takes off and adhesive forms wear-resisting cutter ring, is applied to the shield structure machine with wear-resisting cutter ring, and at the in-process that the shield constructs the machine tunnelling, the granule that easily takes off in the wearing layer of wear-resisting cutter ring breaks away from the wearing layer and forms the pit, has increased the sharpness of wear-resisting cutter ring. Solve the not enough technical problem of sharpness of cutter ring among the prior art to a certain extent.
Description
Technical Field
The application relates to the field of shield machine parts, in particular to a wear-resistant material, a wear-resistant cutter ring and a shield machine.
Background
The hob is a cutter for crushing rock mass by rolling and extruding on the surface of the rock mass, is a necessary part of a shield machine, and is widely applied to the fields of mining, tunnel construction, railway traffic and the like.
The hob ring is in direct contact with the rock mass and bears the thrust of the tunnel boring machine to excavate the rock mass. The hob ring is used as a rock breaking part of the hob, service conditions are very complex in the tunneling process, hard rock mineral aggregate can be frequently encountered, and the phenomenon that the hob ring cannot be tunneled for a long time due to insufficient sharpness occurs.
In the prior art, the sharpness of the cutter ring is improved by improving an abrasion-resistant layer alloy material, adding trace elements, improving a preparation process and the like, but the effect of the method is not obvious.
Disclosure of Invention
In view of this, the application provides a wear-resisting material, wear-resisting cutter ring and shield constructs machine, aim at, solve the not enough technical problem of sharpness of cutter ring among the prior art to a certain extent.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
In a first aspect, the present application provides a wear resistant material comprising:
wear-resistant particles, the wear-resistant particles accounting for 60 to 80% by mass of the wear-resistant material per unit mass;
easy-to-fall particles, wherein the easy-to-fall particles account for 3 to 5 percent of the wear-resistant material in unit mass;
and the adhesive is used for bonding the wear-resistant particles and the easy-to-fall particles.
Preferably, the wear resistant particles are cemented carbide particles.
Preferably, the cemented carbide particles are tungsten carbide, titanium carbide or chromium carbide.
Preferably, the adhesive is a bonding metal.
Preferably, the bonding metal is a nickel-based alloy, an iron-based alloy, or a copper-based alloy.
Preferably, the easy-to-fall particles are graphite particles or ceramic particles, the granularity of the easy-to-fall particles is 5-30 meshes, and the granularity of the wear-resistant particles is 100 meshes.
In a second aspect, the present application provides a wear-resistant cutter ring, which comprises the wear-resistant material as described above, and further comprises a cutter ring main body;
the wear-resistant material is overlaid on the working surface of the cutter ring main body to form a wear-resistant layer;
when the wear-resistant cutter ring works, the easy-to-fall particles fall off from the wear-resistant layer, so that the wear-resistant layer forms a pit.
Preferably, the thickness of the wear-resistant material overlaying the working surface of the cutter ring main body is 3 to 5 mm.
Preferably, the outer side part of the cutter ring main body is also provided with hard alloy spherical teeth.
In a third aspect, the present application provides a shield machine, the shield machine includes the wear-resistant cutter ring as described above, the shield machine further includes an assembly shaft and a rotation shaft, and the wear-resistant cutter ring is mounted on the assembly shaft via the rotation shaft.
This application welds the wear-resisting material build-up welding of preparation in the working surface of cutter ring main part through the wear-resisting granule with certain proportion, the granule that easily takes off and the bonding agent mixes forms wear-resisting cutter ring, is applied to the shield structure machine with this kind of wear-resisting cutter ring, and at the in-process that the shield constructs the machine tunnelling, the granule that easily takes off in the wearing layer of wear-resisting cutter ring breaks away from the wearing layer and forms the pit, has increased the sharpness of wear-resisting cutter ring. Solve the not enough technical problem of sharpness of cutter ring among the prior art to a certain extent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 shows a schematic view of a wear-resistant cutter ring mounted on an assembly shaft.
Reference numerals:
1-wear-resistant cutter ring; 2-assembling a shaft; 3-a rotating shaft; 4-easy-to-fall particles; 5-hard alloy ball teeth.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.
For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.
Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.
The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Fig. 1 shows a schematic view of a wear-resistant cutter ring mounted on an assembly shaft.
Referring to fig. 1, the present embodiment provides a wear-resistant material including: wear-resistant particles, easy-to-fall particles and a binder. The proportions of the above components and the manner of mixing will be specifically described below.
Taking the unit mass of the wear-resistant material as an example, in this example, the wear-resistant particles, the easy-to-fall particles 4, and the binder are mixed in a certain mass ratio. The mass percentage of the wear-resistant particles to the unit mass of the wear-resistant material is 60% to 80%, the mass percentage of the easy-to-detach particles 4 to the unit mass of the wear-resistant material is 3% to 5%, and a binder for binding the wear-resistant particles and the easy-to-detach particles 4 may be added to the mass of the wear-resistant material up to the unit mass, and the operation of the binder will be described in the following description. That is, the mass percentage of the binder in the unit mass of the wear-resistant material may be the remaining percentage of the sum of the mass percentages occupied by the wear-resistant particles and the easy-to-detach particles 4 in the unit mass of the wear-resistant material.
In the present embodiment, the wear-resistant materials formed by mixing in the above-mentioned ratio are beneficial to realize the working process of the wear-resistant cutter ring 1 in the following description, which will be explained in the following description.
It should be noted that the unit mass mentioned in the present embodiment may be a mass of which the amount of one existing mass unit is one or a mass of which the amount of one existing mass unit is artificially defined as N, that is, the mass percentages of the three components are not related to the mass of the wear-resistant material, and the unit mass mentioned in the present embodiment is only for convenience of description.
In addition, in this embodiment, the particle size of the easy-to-fall particles 4 may be 5 to 30 meshes, and the particle size of the wear-resistant particles may be 100 meshes, so that the ratio of the particle size of the wear-resistant particles to the particle size of the easy-to-fall particles 4 is reasonable, which is beneficial to realizing the working process of the wear-resistant cutter ring 1 in the following description, which will be described in the following description.
In this embodiment, the wear-resistant particles may be hard alloy particles, the hard alloy particles may be made of tungsten carbide, titanium carbide, or chromium carbide, the easy-to-detach particles 4 may be graphite particles or ceramic particles, the binder may be a bonding metal, and the bonding metal may be made of a nickel-based alloy, an iron-based alloy, or a copper-based alloy.
The embodiment further provides a wear-resistant cutter ring 1, which comprises the above-described wear-resistant material and a cutter ring body, and the combination manner of the wear-resistant material and the cutter ring body will be specifically described below.
According to the technical characteristics described above, in this embodiment, the hard alloy particles made of tungsten carbide are taken as the wear-resistant particles, the graphite particles are taken as the easy-to-fall particles 4, and the bonding metal made of nickel-based alloy is taken as the bonding agent, wherein the mass percentage of the tungsten carbide particles is 75%, the particle size of the tungsten carbide particles is 100 meshes, the mass percentage of the graphite particles is 5%, the particle size of the graphite particles is 30 meshes, and the mass percentage of the nickel-based alloy is 20%, and the wear-resistant material is prepared by uniformly mixing the three materials.
In this embodiment, the prepared wear-resistant material is prepared into a surfacing electrode by a conventional process for preparing a surfacing electrode, and the electrode prepared from the wear-resistant material is surfaced on the working surface of the cutter ring main body by a surfacing process.
The cutter ring main body is annular, and the material of the cutter ring main body can be alloy steel. In this embodiment, the working surface of the cutter ring body is defined as a surface of the cutter ring body facing a side in a direction to be tunneled after being mounted on the below-described mounting shaft 2. In this embodiment, after the welding rod made of the wear-resistant material is deposited on the working surface of the cutter ring body, a wear-resistant layer is formed on the working surface of the cutter ring body, and this process will be described below: in the process of overlaying, the melting point of the nickel-based alloy (namely, the adhesive) in the wear-resistant material is low and is changed into a molten state, so that tungsten carbide particles (namely, wear-resistant particles) and graphite particles (namely, easy-to-fall particles 4) are bonded, and the wear-resistant material forms a stable wear-resistant layer on the working surface of the cutter ring main body.
Since the nickel-based alloy as the binder is to be transformed from a solid state to a molten state in the above-described build-up process, the particle size of the binder is not particularly limited in the present embodiment, that is, the specific particle size of the binder is not particularly limited as long as the binder can be completely melted at the temperature of the above-described build-up process.
In addition, because the surfacing process is adopted and the easy-to-fall particles 4 are graphite particles, in the embodiment, the inert gas is adopted for protection during the surfacing process, so that the graphite particles are prevented from being oxidized by oxygen at high temperature to influence the quality of the wear-resistant layer.
In this embodiment, the wearing layer of the working surface of wear-resisting cutter ring 1 will rub with earth and stone in the process of the rotary driving of wear-resisting cutter ring 1, in this process, graphite particles (easy-to-fall particles 4) will fall off from the wearing layer of wear-resisting cutter ring 1, the graphite particles fall off to form pits on the surface of the wearing layer, and the pits will greatly increase the sharpness of wear-resisting cutter ring 1, thereby improving the rock crushing effect of wear-resisting cutter ring 1 and increasing the driving speed. The principle of exfoliation of graphite particles will be described in detail below.
In the embodiment, the melting points of the adopted tungsten carbide particles and graphite particles are higher, the tungsten carbide particles and the graphite particles are kept solid to a certain extent in the surfacing process, and in the process of rotary tunneling of the wear-resistant cutter ring 1, under the friction of earth and stones, on one hand, the graphite particles are easier to separate from the wear-resistant layer due to the fact that the bonding strength of the graphite particles and the cooled molten nickel-based metal is poorer than that of the tungsten carbide particles, and on the other hand, due to the fact that the hardness of the graphite is lower, the particle structure of the graphite particles is easy to gradually wear under the friction of the earth and stones, so that the graphite particles are equivalent to separate from the wear-resistant layer.
In the present embodiment, the problem that the ratio of the particle size of the wear-resistant particles to the particle size of the easy-to-fall particles 4 is reasonable is mentioned in the above description, and will be described in detail here. The above-mentioned two particle sizes are substantially equivalent as a specific case where the ratio of the particle sizes is not reasonable, and the details will be described below. According to the above description, since the easy-to-detach particles 4 leave pits in the surface of the wear-resistant layer after detaching, if the particle size of the easy-to-detach particles 4 is substantially equivalent to that of the wear-resistant particles, the size of the pits left after detaching the easy-to-detach particles 4 will be substantially equivalent to that of the wear-resistant particles in the wear-resistant layer.
Moreover, since the three components of the wear-resistant particles, the easy-to-fall particles 4 and the binder are uniformly mixed in the preparation process of the wear-resistant material, it can be understood that the three components are uniformly distributed on the working surface of the cutter ring main body, if the surface of the wear-resistant layer has the pits with the size approximately equal to that of the wear-resistant particles, the volume of the bonding metal connecting the wear-resistant particles and the wear-resistant layer in the surface of the wear-resistant layer is reduced, which greatly reduces the connection strength between the wear-resistant particles and the wear-resistant layer on the surface of the wear-resistant layer, so that the wear-resistant particles fall off rapidly under the friction of earth and stones in the process of the rotary tunneling of the wear-resistant cutter ring 1, thereby causing the rapid wear failure of the wear-resistant layer of the wear-resistant cutter ring 1.
In addition, the mass ratio of the components in the wear-resistant material is also used for preventing the wear-resistant layer of the wear-resistant cutter ring 1 from being worn and failed quickly. That is, in this embodiment, if the mass ratio of the easy-to-fall particles 4 is large, even if the ratio of the particle size of the easy-to-fall particles 4 to the particle size of the wear-resistant particles satisfies the above requirement, the outer side portion of the wear-resistant layer may fall off more easy-to-fall particles 4 during the operation of the wear-resistant ring 1, and the volume of the bonding metal connecting the wear-resistant particles and the wear-resistant layer in the surface of the wear-resistant layer may also be reduced in the above description, thereby reducing the connection strength between the wear-resistant particles and the wear-resistant layer in the surface of the wear-resistant layer.
In this embodiment, in order to ensure the effective duration of the operation of the wear-resistant layer, the thickness of the wear-resistant material deposited on the working surface of the cutter ring main body may be 3 to 5 mm.
In addition, the outer side of the cutter ring main body may be formed with cemented carbide buttons 5. In this embodiment, the outside portion of cutter ring main part can the equipartition have a plurality of carbide ball teeth 5, carbide ball teeth 5 can set up in the outside portion of cutter ring main part through the welded mode for supplementary wear-resisting cutter ring 1 is at its rotatory in-process detritus of tunneling, and, reduces the wearing and tearing of cutter ring outside portion to a certain extent, prevents that the wearing and tearing that cutter ring outside portion appears from reducing wear-resisting cutter ring 1's working surface's area gradually, leads to the loss of wearing layer.
This embodiment still provides a shield constructs machine, including above-mentioned wear-resisting cutter ring 1, still include rotation axis 3 and assembly axle 2, in this embodiment, the outside portion of rotation axis 3 is located to wear-resisting cutter ring 1 cover, and the pilot hole has been seted up along its self axis to rotation axis 3, locates the outside portion of rotation axis 3 back at wear-resisting cutter ring 1 cover, assembles rotation axis 3 again via pilot hole and shield structure machine's assembly axle 2, and then installs wear-resisting cutter ring 1 in shield structure machine.
In the present embodiment, the fitting hole and the fitting shaft 2 may be fitted as follows. As shown in fig. 1, the fitting portion of the fitting shaft 2 in the present embodiment is approximately square, and the shape of the fitting hole in the rotating shaft 3 is adapted to the shape of the fitting portion of the fitting shaft 2, and the two are inserted into each other in an interference fit manner to achieve fitting.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all changes that can be made in the details of the description and drawings, or directly/indirectly implemented in other related technical fields, are intended to be embraced therein without departing from the spirit of the present application.
Claims (7)
1. The wear-resistant material is characterized in that the wear-resistant material is used for manufacturing a wear-resistant cutter ring through a surfacing process, the wear-resistant cutter ring is used for a shield machine, and the wear-resistant material comprises:
wear-resistant particles, the wear-resistant particles accounting for 60 to 80% by mass of the wear-resistant material per unit mass;
easy-to-fall particles, wherein the easy-to-fall particles account for 3 to 5 percent of the wear-resistant material in unit mass;
the adhesive is used for bonding the wear-resistant particles and the easy-to-fall particles;
the granularity of the easy-to-fall particles is 5-30 meshes, and the granularity of the wear-resistant particles is 100 meshes;
the adhesive is bonding metal which is nickel-based alloy, iron-based alloy or copper-based alloy;
the easy-to-fall particles are graphite particles or ceramic particles.
2. The wear resistant material of claim 1 wherein the wear resistant particles are cemented carbide particles.
3. The wear resistant material of claim 2 wherein the cemented carbide particles are tungsten carbide, titanium carbide or chromium carbide.
4. A wear resistant cutter ring, wherein the wear resistant cutter ring comprises the wear resistant material of any one of claims 1 to 3, and further comprises a cutter ring body;
the wear-resistant material is overlaid on the working surface of the cutter ring main body to form a wear-resistant layer;
when the wear-resistant cutter ring works, the easy-to-fall particles fall off from the wear-resistant layer, so that the wear-resistant layer forms a pit.
5. The wear resistant cutter ring of claim 4 wherein the flash weld of wear resistant material to the working surface of the cutter ring body is 3 to 5mm thick.
6. The wear resistant cutter ring of claim 5 wherein the outer side of the cutter ring body is further formed with carbide buttons.
7. A shield tunneling machine, characterized in that it comprises a wear-resistant cutter ring according to any one of claims 4 to 6, and further comprises an assembly shaft and a rotating shaft, via which the wear-resistant cutter ring is mounted to the assembly shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833131.0A CN110439581B (en) | 2019-09-04 | 2019-09-04 | Wear-resistant material, wear-resistant cutter ring and shield tunneling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833131.0A CN110439581B (en) | 2019-09-04 | 2019-09-04 | Wear-resistant material, wear-resistant cutter ring and shield tunneling machine |
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| CN110439581A CN110439581A (en) | 2019-11-12 |
| CN110439581B true CN110439581B (en) | 2021-12-03 |
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| CN112157242B (en) * | 2020-08-31 | 2022-04-08 | 中铁工程装备集团隧道设备制造有限公司 | Composite hob ring and preparation method thereof |
| CN117066501B (en) * | 2023-08-14 | 2024-03-12 | 中铁工程服务有限公司 | Wear-resistant alloy material, shield wear-resistant ring and shield machine |
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| JP2008144541A (en) * | 2006-12-13 | 2008-06-26 | Ohbayashi Corp | Drilling bit |
| CN101016826B (en) * | 2007-03-08 | 2010-06-16 | 江汉石油钻头股份有限公司 | Bit body of diamond bit and manufacture method therefor |
| CN102079109A (en) * | 2010-11-27 | 2011-06-01 | 常州华中集团有限公司 | Diamond saw blade and machining process thereof |
| CN103014475A (en) * | 2012-12-18 | 2013-04-03 | 江苏新亚特钢锻造有限公司 | Oxide particle reinforced laser cladding high-wear resistance nickel-base alloy powder and preparation method thereof |
| CN105256170A (en) * | 2015-10-30 | 2016-01-20 | 苏州列治埃盟新材料技术转移有限公司 | High-strength titanium carbide particle-reinforced copper-based composite material and preparation method thereof |
| CN105420533A (en) * | 2015-11-02 | 2016-03-23 | 苏州金仓合金新材料有限公司 | New high-strength titanium carbide particle reinforced copper-based alloy material for oceanographic engineering |
| CN108728695A (en) * | 2018-06-27 | 2018-11-02 | 南通理工学院 | A kind of multiphase nano-ceramic particle hybrid buildup nickel-base alloy and its laser forming method |
| CN109465461A (en) * | 2019-01-02 | 2019-03-15 | 西迪技术股份有限公司 | A kind of tungsten carbide stiff dough anti-friction bearing and preparation method thereof |
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2019
- 2019-09-04 CN CN201910833131.0A patent/CN110439581B/en active Active
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