CN205638464U - Shield constructs novel scraper of machine - Google Patents
Shield constructs novel scraper of machine Download PDFInfo
- Publication number
- CN205638464U CN205638464U CN201620518887.8U CN201620518887U CN205638464U CN 205638464 U CN205638464 U CN 205638464U CN 201620518887 U CN201620518887 U CN 201620518887U CN 205638464 U CN205638464 U CN 205638464U
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- alloy
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- knife face
- scraper
- face
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Abstract
The utility model discloses a shield constructs novel scraper of machine, forge the base member including alloy steel, the face of weld that the blade alloy of brazing on the base member working position, base member and blade alloy combine is two mutually perpendicular's face of weld, and the design has a slot of zigzag on the face of weld, at the base member back of the body knife face out -of -the -way knife face alloy of having brazed. The utility model discloses to have increased welding surface long -pending by a wide margin, has effectively improved welding strength, has improved the bonding strength of alloy moreover, prevents that the welding seam from droing because of tearing when receiving external force, has enlarged the bottom application range of scraper.
Description
Technical field
This utility model belongs to shield machine accessory, is specifically related to a kind of scraper being arranged on cutter head of shield machine.
Background technology
Along with further speeding up of urbanization process, urban congestion problem is increasingly severe, and the particularly exploitation of large-and-medium size cities underground traffic is the most very urgent.Shield-tunneling construction is with safety, automatization quick, high, be increasingly widely used in subway construction to the construction line periphery interference plurality of advantages such as little.Scraper is then the shield machine weak soil cutter when carrying out mine working operation, and its structure is mainly made up of with carbide quartz welding alloy steel forging matrix, utilizes the rotation incision soil layer of cutterhead, scraping dregs, thus completes excavation operation.The modal failure mode of scraper is exactly that alloy is combined with matrix and insecure causes alloy to come off, thus causes scraper to be scrapped, and considerably increases the cost of construction.The scraper of present domestic use; its alloy is all to use money base soldering with the combination of cutter hub; face of weld is generally plane; the stratum that local is harder it is frequently encountered during building subway; tunneling in shield machine at this point layer, during broken rock, scraper is acted on by rock impact power, easily causes scraper alloy to come off; need frequent tool changing because service life is short, increase construction risk and engineering cost.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide the scraper of a kind of shield machine.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of scraper of shield machine, including steel alloy forging matrix, soldering cutting edge alloy on matrix working position, it is characterized in that, the solder side that described matrix is combined with cutting edge alloy is two orthogonal solders side, and on solder side, it is designed with zigzag groove, there is back of the body knife face alloy in matrix back of the body knife face soldering.
Preferably, the part exposing matrix in back of the body knife face alloy is designed to arc-shaped convex, carries on the back knife face alloy bottom design stepped, and the step-like bottom scarfweld of back of the body knife face alloy is in the groove of matrix.The design of arc-shaped convex can reduce the matrix rate of depreciation when being rubbed by soil layer, and the design of step-like bottom is effectively increased the bond strength of back of the body knife face alloy and matrix, it is to avoid the risk that back of the body knife face alloy falls off under the effect of severe friction power.
Compared to existing technologies, advantage of the present utility model: use dentate groove to be mutually twisted by the solder side being combined with cutting edge alloy by matrix, it is added significantly to face of weld amass, being computed, bonding area adds 33.5%, is effectively increased weld strength, and dentate groove occlusion can resist a certain degree of tangential moment of flexure, in terms of loading angle, improve the bond strength of alloy, prevent weld seam from coming off because of tear when by external force；Additionally, back of the body knife face alloy effectively protects matrix and cutting edge alloy, reduce the abrasion to matrix.This utility model is remarkably improved in terms of whole cutter alloy slip-off preventing and wearability, expands the bottom range of scraper.
Accompanying drawing explanation
Fig. 1 is Facad structure schematic diagram of the present utility model
Fig. 2 is side structure schematic diagram of the present utility model
Fig. 3 is I portion enlarged drawing in Fig. 2
In figure: 1, matrix, 2, cutting edge alloy, 3, back of the body knife face alloy, 4, groove.
Detailed description of the invention
In conjunction with accompanying drawing, this utility model is further elaborated.
Such as Fig. 1-3, the scraper of shield machine, including steel alloy forging matrix 1, soldering cutting edge alloy 2 on matrix 1 working position, the solder side that matrix 1 is combined with cutting edge alloy 2 is two vertical solders side that mutually hang down, and is designed with zigzag groove 4 on two orthogonal solders side of matrix 1, correspondingly, two orthogonal solders side at cutting edge alloy 2 are also configured with zigzag groove 4, and matrix 1 is mutually twisted by groove 4 when welding with cutting edge alloy 2；Carry on the back knife face soldering at matrix 1 and have back of the body knife face alloy 3.Matrix 1 is mutually twisted with cutting edge alloy 2 solder side, bonding area is made to add 33.5%, it is effectively increased weld strength, simultaneously, when cutting edge alloy 2 is by the impulsive force of vertical and solder side, jagged bite can resist certain moment of flexure, effectively stops weld seam to come off because of tear when by external force.
The part exposing matrix in back of the body knife face alloy 3 is designed to arc-shaped convex, carries on the back knife face alloy 3 bottom design stepped, and the step-like bottom scarfweld of back of the body knife face alloy 3 is in the groove of matrix 1.The design of arc-shaped convex can reduce the matrix 1 rate of depreciation when being rubbed by soil layer, and the design of step-like bottom is effectively increased the bond strength of back of the body knife face alloy 3 and matrix 1, it is to avoid the risk that back of the body knife face alloy 3 falls off under the effect of severe friction power.
Claims (2)
1. the scraper of a shield machine, including steel alloy forging matrix, soldering cutting edge alloy on matrix working position, it is characterized in that, the solder side that described matrix is combined with cutting edge alloy is two orthogonal solders side, and on solder side, it is designed with zigzag groove, there is back of the body knife face alloy in matrix back of the body knife face soldering.
The scraper of shield machine the most according to claim 1, it is characterised in that the part exposing matrix in back of the body knife face alloy is designed to arc-shaped convex, carries on the back knife face alloy bottom design stepped, and the step-like bottom scarfweld of back of the body knife face alloy is in the groove of matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518887.8U CN205638464U (en) | 2016-06-01 | 2016-06-01 | Shield constructs novel scraper of machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518887.8U CN205638464U (en) | 2016-06-01 | 2016-06-01 | Shield constructs novel scraper of machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638464U true CN205638464U (en) | 2016-10-12 |
Family
ID=57051855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620518887.8U Expired - Fee Related CN205638464U (en) | 2016-06-01 | 2016-06-01 | Shield constructs novel scraper of machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205638464U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236307A (en) * | 2018-10-18 | 2019-01-18 | 上海隧道工程有限公司 | The blade construction of shield machine |
| CN114749750A (en) * | 2021-12-31 | 2022-07-15 | 上海工程技术大学 | Forming control method for brazing joint of 3D printed product |
-
2016
- 2016-06-01 CN CN201620518887.8U patent/CN205638464U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236307A (en) * | 2018-10-18 | 2019-01-18 | 上海隧道工程有限公司 | The blade construction of shield machine |
| CN114749750A (en) * | 2021-12-31 | 2022-07-15 | 上海工程技术大学 | Forming control method for brazing joint of 3D printed product |
| CN114749750B (en) * | 2021-12-31 | 2024-01-30 | 上海工程技术大学 | Forming control method of braze welding joint for 3D printing product |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 |