CN214403583U - Wear-resistant cutter head of shield tunneling machine - Google Patents
Wear-resistant cutter head of shield tunneling machine Download PDFInfo
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- CN214403583U CN214403583U CN202120103489.0U CN202120103489U CN214403583U CN 214403583 U CN214403583 U CN 214403583U CN 202120103489 U CN202120103489 U CN 202120103489U CN 214403583 U CN214403583 U CN 214403583U
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- cutter head
- cutter
- blade disc
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Abstract
The utility model discloses a shield constructs quick-witted wear-resisting type blade disc, including discoid blade disc body, the blade disc body includes a plurality of knife rests, and the one end that the knife rest extends to blade disc body avris is provided with the scraper of multiunit, and the edge department arcuation that the scraper corresponds the knife rest is excessive, and blade disc body avris corresponds and all is provided with the protective equipment between two adjacent knife rests, and the avris welding that the protective equipment corresponds the blade disc body has alloy to consolidate the piece, and alloy consolidates the piece and is the grid and distributes. Increase edge scraper front-seat master alloy thickness and level, after the impaired back that warp of individual layer scraper, can change the individual layer scraper, can not influence holistic protecting effect, have the gage effect to the blade disc body, the wearing resistance of protective equipment is increased in the design of top alloy reinforcement piece, can prevent to the wearing and tearing of cutter when the blade disc reverses, makes the cutter working process can bear bigger striking and wearing and tearing.
Description
Technical Field
The utility model belongs to the technical field of the shield constructs quick-witted blade disc, especially relates to a wear-resisting type blade disc of shield constructs quick-witted.
Background
The cutter is replaced to find that the cutter disc and the cutter are abraded seriously, the abrasion condition of the cutter is analyzed according to experience, an edge scraper is a cutter which is located at the outermost edge of the cutter disc and has a diameter protection effect, the abrasion speed is relatively high, the edge of one side of the cutter used in the area is abraded seriously, the edge scraper is required to be at the diameter protection position, the upper layer cutter (hob) is abraded seriously possibly through analysis, the upper layer cutter is not protected, and the edge scraper directly contacts with an excavation surface to cause the serious abrasion of the edge scraper and is easy to abrade. The gravel-egg stratum is characterized by large grain diameter and high compactness, and particularly the gravel-egg stratum in the interval is large in grain diameter and high in content and has serious impact on a cutter. The main alloy of the front row of the edge scraper in the original design is higher but the thickness is not large, and the alloy is impacted and locally crushed possibly due to strong impact of pebbles with large particle sizes in the construction process, so that the crushing surface is gradually increased, and a cutter is abnormally abraded.
Alloy welding strength of part of cutters is difficult to resist impact of pebbles with large particle sizes, and when the part of cutters is impacted too much in the construction process, local alloy of the cutters drops, so that the cutter body of the edge scraper is seriously abraded. The periphery hobbing cutter wearing and tearing volume is great, and the wearing and tearing of edge scraper are very fast, and the wearing and tearing volume is great, causes the edge scraper to scrape the ability decline, and the dregs are piled up and are led to the wearing and tearing of blade disc periphery.
Therefore, the utility model discloses it is that the easy wearing and tearing of blade disc periphery are serious that the main solution leads to the problem that the ability of scraping of marginal scraper descends.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wear-resisting type blade disc of shield constructs machine, it is serious that the easy wearing and tearing of blade disc periphery are mainly solved, lead to the problem that the ability descends is scraped to the marginal scraper.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
a wear-resistant cutter head of a shield tunneling machine comprises a disc-shaped cutter head body, wherein the cutter head body comprises a plurality of cutter rests, the cutter rests are in a long strip shape, the cutter rests extend to the side along the center of the cutter head body, the cutter rests are uniformly arranged around the center of the cutter head body, and cutters are arranged on two sides of each cutter rest;
a plurality of groups of scrapers are arranged at one end of the cutter frame extending to the side of the cutter head body, the scrapers are mutually overlapped and fixed on two sides of the cutter frame, and the corresponding corners of the scrapers on the cutter frame are in arc transition;
cutter disc body avris corresponds all to be provided with the protective equipment between two adjacent knife rests, protective equipment demountable installation is in the cutter disc body, the avris welding that the protective equipment corresponds the cutter disc body has alloy reinforcing block, alloy reinforcing block is the grid and distributes.
Further, the scraper comprises a first blade and a second blade, the first blade and the second blade are 90 degrees, a third blade which is a quarter circle is arranged between the first blade and the second blade, and the first blade, the second blade and the third blade are all provided with first mounting holes.
Furthermore, the first blade, the second blade and the third blade are provided with reinforcing ribs on one side, and grooves for accommodating the reinforcing ribs are formed in the other side.
Furthermore, the cross-section of protective equipment is the shape of a letter 21274, the avris that the protective equipment corresponds the blade disc body is provided with the engaging lug, the engaging lug is provided with the second mounting hole.
Furthermore, the connecting lugs are correspondingly provided with thickening layers.
The utility model discloses following beneficial effect has:
increase edge scraper front-seat main alloy thickness and level, after the impaired deformation of individual layer scraper, can change the individual layer scraper, can not influence holistic protective effect. The scraper side mainly acts on the protection tool rest and the cutter head body without deformation, and the side of the cutter head body is prevented from being abraded. Has the function of protecting the diameter of the cutter head body,
and a large round angle form is adopted, so that the stress unbalance of the sharp corner is reduced, and the structure is more stable. The impact resistance of the alloy is enhanced. The base metal protection is added in front of the main alloy, a certain buffer effect can be achieved when the cutter is impacted by strong force, the condition that the alloy is broken by the impact is reduced and avoided, meanwhile, the welding strength of the alloy can be enhanced by increasing the area of the alloy welding surface, and the alloy welding is ensured to be firmer.
The design of top alloy reinforcing block increases the wearability of protective equipment, can prevent the wearing and tearing to the cutter when the blade disc reverses. The mutual matching of the main alloy and the side alloy enables the cutter to bear larger impact and abrasion in the working process.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1: the utility model discloses the schematic structure.
FIG. 2: the utility model discloses protective equipment structure picture.
FIG. 3: the utility model discloses scraper overlaps back structure picture.
FIG. 4: the utility model discloses the structure chart of monolithic scraper.
In the drawings, the components represented by the respective reference numerals are listed below:
the cutter head comprises a cutter head body 1, a cutter frame 2, a cutter 21, a scraper 3, a protective tool 4, an alloy reinforcing block 41, a first blade 31, a second blade 32, a third blade 33, a first mounting hole 34, a reinforcing rib 35, a connecting lug 42, a second mounting hole 43 and a thickening layer 44.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
As shown in fig. 1-3: a wear-resistant cutter head of a shield tunneling machine comprises a disc-shaped cutter head body 1, wherein the cutter head body 1 comprises a plurality of cutter holders 2, the cutter holders 2 are in a long strip shape, the cutter holders 2 extend to the side along the center of the cutter head body 1, the cutter holders 2 are uniformly arranged around the center of the cutter head body 1, and cutters 21 are arranged on two sides of each cutter holder 2;
a plurality of groups of scrapers 3 are arranged at one end of the cutter frame 2 extending to the side of the cutter head body 1, the scrapers 3 are mutually overlapped and fixed on two sides of the cutter frame 2, and the scrapers 3 are in arc transition corresponding to the corners of the cutter frame 2;
all be provided with protective equipment 4 between two adjacent knife rest 2 are corresponded to 1 avris of blade disc body, 4 demountable installation in blade disc body 1 of protective equipment, the avris welding that protective equipment 4 corresponds blade disc body 1 has alloy reinforcing block 41, alloy reinforcing block 41 is the grid distribution.
The utility model discloses in, increase edge scraper front-seat owner alloy thickness and level, after the impaired deformation of individual layer scraper, can change the individual layer scraper, can not influence holistic protecting effect. The scraper side mainly acts on the protection tool rest and the cutter head body without deformation, and the side of the cutter head body is prevented from being abraded. Has the function of protecting the diameter of the cutter head body,
and a large round angle form is adopted, so that the stress unbalance of the sharp corner is reduced, and the structure is more stable. The impact resistance of the alloy is enhanced. The base metal protection is added in front of the main alloy, a certain buffer effect can be achieved when the cutter is impacted by strong force, the condition that the alloy is broken by the impact is reduced and avoided, meanwhile, the welding strength of the alloy can be enhanced by increasing the area of the alloy welding surface, and the alloy welding is ensured to be firmer.
The design of top alloy reinforcing block increases the wearability of protective equipment, can prevent the wearing and tearing to the cutter when the blade disc reverses. The mutual matching of the main alloy and the side alloy enables the cutter to bear larger impact and abrasion in the working process.
As shown in fig. 4: the scraper 3 comprises a first blade 31 and a second blade 32, the first blade 31 and the second blade 32 are 90 degrees, a third blade 33 which is a quarter circle is arranged between the first blade 31 and the second blade 32, and the first blade 31, the second blade 32 and the third blade 33 are all provided with a first mounting hole 34. The edge scraper has the effect of gauge protection, and the partial position of gauge protection is about 95mm with big ring clearance, guarantees that the edge scraper can fully scrape the dregs to the soil storehouse.
As shown in fig. 4: the first blade 31, the second blade 32 and the third blade 33 are provided with reinforcing ribs 35 on one surface, and provided with grooves for accommodating the reinforcing ribs 35 on the other surface. The stability of the blade is enhanced, and the rigidity of the single-layer blade is improved.
As shown in fig. 2: the cross-section of protective equipment 4 is the shape of a v 21274, the avris that protective equipment 4 corresponds blade disc body 1 is provided with engaging lug 42, engaging lug 42 is provided with second mounting hole 43. The cross-section of protective equipment becomes one, 21274, the shape for the avris of block blade disc body corresponds simultaneously and is provided with the engaging lug that is used for the installation, through second mounting hole bolted connection, even change the protective equipment when the protective equipment wearing and tearing are serious.
As shown in fig. 2: the connecting lug 42 is correspondingly provided with a thickening layer 44. The connecting lug is used for strengthening the side and improving the mounting stability and firmness of the connecting lug.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides a shield constructs wear-resisting type blade disc of machine which characterized in that:
the cutting tool comprises a disc-shaped cutter head body (1), wherein the cutter head body (1) comprises a plurality of tool holders (2), the tool holders (2) are long, the tool holders (2) extend to the lateral side along the center of the cutter head body (1), the tool holders (2) are uniformly arranged around the center of the cutter head body (1), and cutters (21) are arranged on two sides of each tool holder (2);
a plurality of groups of scrapers (3) are arranged at one end, extending to the side of the cutter head body (1), of the cutter frame (2), the scrapers (3) are mutually overlapped and fixed on two sides of the cutter frame (2), and the scrapers (3) are in arc transition corresponding to the corners of the cutter frame (2);
cutter head body (1) avris corresponds all to be provided with protective equipment (4) between two adjacent knife rest (2), protective equipment (4) demountable installation in cutter head body (1), the avris welding that protective equipment (4) correspond cutter head body (1) has alloy reinforcing block (41), alloy reinforcing block (41) are the net formula and distribute.
2. The wear-resistant cutter head of the shield tunneling machine of claim 1, wherein: the scraper (3) comprises a first blade (31) and a second blade (32), the first blade (31) and the second blade (32) are 90 degrees, a third blade (33) which is a quarter circle is arranged between the first blade (31) and the second blade (32), and the first blade (31), the second blade (32) and the third blade (33) are all provided with a first mounting hole (34).
3. The wear-resistant cutter head of the shield tunneling machine of claim 2, wherein: the first blade (31), the second blade (32) and the third blade (33) are provided with reinforcing ribs (35) on one surface, and grooves for accommodating the reinforcing ribs (35) are formed in the other surface.
4. The wear-resistant cutter head of the shield tunneling machine of claim 1, wherein: the cross-section of protective equipment (4) is the shape of \ 21274, the avris that protective equipment (4) correspond blade disc body (1) is provided with engaging lug (42), engaging lug (42) are provided with second mounting hole (43).
5. The wear-resistant cutter head of the shield tunneling machine of claim 4, wherein: the connecting lugs (42) are correspondingly provided with thickening layers (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120103489.0U CN214403583U (en) | 2021-01-14 | 2021-01-14 | Wear-resistant cutter head of shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120103489.0U CN214403583U (en) | 2021-01-14 | 2021-01-14 | Wear-resistant cutter head of shield tunneling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214403583U true CN214403583U (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120103489.0U Active CN214403583U (en) | 2021-01-14 | 2021-01-14 | Wear-resistant cutter head of shield tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214403583U (en) |
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2021
- 2021-01-14 CN CN202120103489.0U patent/CN214403583U/en active Active
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