CN201241709Y - Scraper for shield machine - Google Patents
Scraper for shield machine Download PDFInfo
- Publication number
- CN201241709Y CN201241709Y CNU2008201879976U CN200820187997U CN201241709Y CN 201241709 Y CN201241709 Y CN 201241709Y CN U2008201879976 U CNU2008201879976 U CN U2008201879976U CN 200820187997 U CN200820187997 U CN 200820187997U CN 201241709 Y CN201241709 Y CN 201241709Y
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- face
- cutter hub
- alloy body
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- scraper
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Abstract
The utility model provides a scraper for shield machines, belonging to the fittings of shield machines, which mainly comprises a triangle planer scraper. The scraper is characterized in that the top end of the front end face of the scraper body is welded with a front end face alloy body leveled with the front end face of the scraper body via an open slot, and the top face of the scraper body is welded with a top face alloy body higher than the top face of the scraper body via a concave groove. Optionally, the front end face alloy body can be exposed at the front end face of the scraper body and the top face alloy body can be leveled with the top face of the scraper body. When in use, the front end face alloy body first contacts rock and soil to process pretreatment on the rock and soil, the top face alloy body processes post-treatment, thereby effectively confirming normal breaking and tunneling. Since the front end face alloy body directly contacts rock and soil, the utility model can avoid rock and soil abrading the scraper body to protect the scraper body, avoid alloy falling, resisting abrasion and attaining long service life.
Description
Technical field
The utility model belongs to the shield machine accessory, is specifically related to a kind of cutter that is installed on the cutter head of shield machine.
Background technology
Shield machine is widely used in operations such as underground construction and tunnel piercing in recent years.The cutterhead of shield machine is provided with cutter, mainly is the rotation that utilizes cutterhead, and by cutter ground, soil layer, sandstone etc. are ditched, rolled, fragmentation and cutting etc., thus finish the engineering driving.According to engine request, cutter generally is divided into scraper, hobboing cutter and the cutter etc. of going ahead of the rest.Wherein scraper can be divided into flat scraper, edge scraper etc. again according to the difference of installation site.Present flat scraper generally is big alloy of weldering in the top of triangle cutter hub, the end face perforate welding column alloy of cutter hub; Because big alloy is wrapped up by cutter hub, after long-time the use, the cutter hub wearing and tearing easily cause alloy to come off.Used edge scraper generally is to weld a plurality of column alloys in the end face perforate of triangle cutter hub now; Under the situation of cutter hub wearing and tearing, the column alloy can come off in the past backward successively.Above-mentioned two kinds of situations all exist cutter hub wearing and tearing alloy and come off and scrap phenomenon, and application life is short, anti-wear performance is poor.
Summary of the invention
The shield machine scraper that provides a kind of anti-wear performance high is provided the purpose of this utility model.
The utility model is achieved in that
The utility model is that the front end face at the triangle cutter hub connects the front end face alloy body that exposes by the open type slot welding, and end face is by inner groovy welding end face alloy.At different flat scrapers and edge scraper, the utility model adopts following two kinds of technical schemes:
First kind of scheme: a kind of shield machine scraper, mainly comprise leg-of-mutton plane cutter hub, it is characterized in that: the top of described cutter hub front end face is provided with an open type groove, is welded with the front end face alloy body that maintains an equal level with the cutter hub front end face in the open type groove; The end face of described cutter hub has inner groovy, is welded with the end face alloy body that slightly exceeds the cutter hub end face in the inner groovy.
Second kind of scheme: a kind of shield machine scraper, mainly comprise leg-of-mutton edge cutter hub, the end face of this edge cutter hub is a circular arc, it is characterized in that: the top of described cutter hub front end face is provided with an open type groove, is welded with the front end face alloy body that exposes in the open type groove; The end face of described cutter hub has inner groovy, is welded with the end face alloy body that maintains an equal level with the cutter hub end face in the inner groovy.
After the utility model adopts said structure, by front end face alloy body contact ground, ground is carried out pre-treatment earlier, carries out post processing by the end face alloy body again, guaranteed trench digging, fragmentation, the cutting ability of shield machine, and broken, dig normally carrying out into.Because the front end face alloy body exposes, and directly contacts ground, has avoided the direct wearing and tearing of ground to cutter hub, has effectively protected cutter hub, avoided the too early obscission of cutter hub wearing and tearing alloy.Have resistance to wear, the effect of long service life, increased the alloy face, improved the anti-wear performance of cutter hub.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model, and Fig. 2 is the lateral view of Fig. 1, and Fig. 3 is an another kind of structural representation of the present utility model, and Fig. 4 is the lateral view of Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
In the accompanying drawing, 1 is that cutter hub, 2 is that front end face alloy body, 3 is that end face alloy body, 4 is wearing layer.
The utility model is the cutterhead cutter of shield machine, relates generally to the shield machine scraper, and according to the difference of purposes and installation site, scraper is divided into flat scraper and edge scraper.
Figure 1 shows that the shield machine flat scraper, mainly form, comprise front end face, three planes of end face and side by plane cutter hub 1; The lateral layout of cutter hub 1 is a triangle, and the front end face of cutter hub 1 and end face contact ground successively.The top of the front end face of cutter hub 1 has an open type groove, is welded with front end face alloy body 2 in the open type groove.The front end face of front end face alloy body 2 exposes and is fair with the front end face of cutter hub 1, and the end face of front end face alloy body 2 exposes at the end face of cutter hub 1, and the drift angle that front end face alloy body 2 exposes can be designed to acute angle shape or circular arc.The bottom of front end face alloy body 2 is the inner groovy that the end face of cutter hub 1 has bar shaped, is welded with end face alloy body 3 in the inner groovy, and end face alloy body 3 exposes and slightly exceeds this end face at the end face of cutter hub 1.As shown in Figure 2, described front end face alloy body 2 is made of side by side three square alloy blocks, arranges at the front end face of cutter hub 1 and the junction in-line of end face.Described end face alloy body 3 also is made of side by side three alloy blocks, arranges at the end face in-line of cutter hub 1, can be designed to a row or two rows and more as required.The alloy block of forming end face alloy body 3 is designed to triangle, square or other polygon, also can adopt the column alloy block to replace.
Figure 3 shows that shield machine edge scraper, mainly form, comprise the end face of front end face, two planes, side and circular arc by edge cutter hub 1; The lateral layout of cutter hub 1 is a triangle, and the front end face of cutter hub 1 and end face contact ground successively.The top of the front end face of cutter hub 1 has an open type groove, is welded with front end face alloy body 2 in the open type groove.The front end face of front end face alloy body 2 exposes, and the end face of front end face alloy body 2 exposes and maintains an equal level with the end face of cutter hub 1 at the end face of cutter hub 1, and the drift angle that front end face alloy body 2 exposes can be designed to acute angle shape or circular arc.The rear portion of front end face alloy body 2 is the inner groovy that the end face of cutter hub 1 has bar shaped, is welded with end face alloy body 3 in the inner groovy, and end face alloy body 3 exposes and maintains an equal level with the end face of cutter hub 1 at the end face of cutter hub 1.As shown in Figure 4, described front end face alloy body 2 is made of side by side the square alloy block of polylith, along the end face circular arc distribution of cutter hub 1.Described end face alloy body 3 is made of side by side two or polylith alloy block, distributes along the end face circular arc of cutter hub 1.Described end face alloy body 3 can be designed to a row or two rows and more as required.The alloy block of forming end face alloy body 3 is designed to triangle, square or other polygon, also can adopt the column alloy block to replace.
For increasing anti-wear performance, on the basis of embodiment 1,2, but other exsertion part spraying wear-resistant materials of the front end face of described cutter hub 1, end face, side forms wearing layer 4.
During use, cutter hub 1 is installed in by tool rest on the cutterhead of shield machine, and along with the rotation of cutterhead, front end face alloy body 2 at first contacts ground, and ground is carried out pre-treatment; Carry out post processing by 3 pairs of ground of end face alloy body then, guaranteed broken, dig normally carrying out into.Because front end face alloy body 2 replaces cutter hub directly to contact ground, has effectively protected cutter hub 1, has avoided the generation of alloy obscission, has improved the anti-wear performance of cutter hub 1.
Claims (9)
1, a kind of shield machine scraper mainly comprises leg-of-mutton plane cutter hub (1), it is characterized in that: the top of described cutter hub (1) front end face is provided with an open type groove, is welded with the front end face alloy body (2) that maintains an equal level with cutter hub (1) front end face in the open type groove; The end face of described cutter hub (1) has inner groovy, is welded with the end face alloy body (3) that slightly exceeds cutter hub (1) end face in the inner groovy.
2, shield machine scraper according to claim 1 is characterized in that: described front end face alloy body (2) is made of side by side three square alloy blocks.
3, shield machine scraper according to claim 1 and 2 is characterized in that: described end face alloy body (3) is made of side by side three alloy blocks, is designed to a row or two rows.
4, shield machine scraper according to claim 3 is characterized in that: the alloy block of forming end face alloy body (3) is designed to triangle, square or other polygon.
5, a kind of shield machine scraper, mainly comprise leg-of-mutton edge cutter hub (1), the end face of this edge cutter hub (1) is a circular arc, it is characterized in that: the top of described cutter hub (1) front end face is provided with an open type groove, is welded with the front end face alloy body (2) that exposes in the open type groove; The end face of described cutter hub (1) has inner groovy, is welded with the end face alloy body (3) that maintains an equal level with cutter hub (1) end face in the inner groovy.
6, shield machine scraper according to claim 5 is characterized in that: described front end face alloy body (2) is made of side by side square alloy block, along the end face circular arc distribution of cutter hub (1).
7, according to claim 5 or 6 described shield machine scrapers, it is characterized in that: described end face alloy body (3) is made of side by side two above alloy blocks, along the end face circular arc distribution of cutter hub (1).
8, shield machine scraper according to claim 7 is characterized in that: institute's end face alloy body (3) be designed to one row or two row more than.
9, shield machine scraper according to claim 8 is characterized in that: the alloy block of forming end face alloy body (3) is designed to triangle, square or other polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201879976U CN201241709Y (en) | 2008-08-20 | 2008-08-20 | Scraper for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201879976U CN201241709Y (en) | 2008-08-20 | 2008-08-20 | Scraper for shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241709Y true CN201241709Y (en) | 2009-05-20 |
Family
ID=40715006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201879976U Expired - Fee Related CN201241709Y (en) | 2008-08-20 | 2008-08-20 | Scraper for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241709Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899980A (en) * | 2010-08-03 | 2010-12-01 | 中铁十三局集团第二工程有限公司 | Protective knife of shield machine scraper tool apron |
| CN102392656A (en) * | 2011-07-27 | 2012-03-28 | 中交隧道工程局有限公司 | Reinforced serrated knife with flat head |
| CN103008993A (en) * | 2012-11-29 | 2013-04-03 | 洛阳九久技术开发有限公司 | Manufacturing method of shield machine scraper |
| CN104060994A (en) * | 2014-06-30 | 2014-09-24 | 无锡市威海达机械制造有限公司 | Shield machine cutter |
| CN106216023A (en) * | 2016-08-30 | 2016-12-14 | 浙江华莎驰机械有限公司 | A kind of tooth header structure of lithotrite |
| CN109236307A (en) * | 2018-10-18 | 2019-01-18 | 上海隧道工程有限公司 | The blade construction of shield machine |
| CN109514060A (en) * | 2018-11-29 | 2019-03-26 | 洛阳金鹭硬质合金工具有限公司 | A kind of method of built-up welding scraper wearing layer |
-
2008
- 2008-08-20 CN CNU2008201879976U patent/CN201241709Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899980A (en) * | 2010-08-03 | 2010-12-01 | 中铁十三局集团第二工程有限公司 | Protective knife of shield machine scraper tool apron |
| CN102392656A (en) * | 2011-07-27 | 2012-03-28 | 中交隧道工程局有限公司 | Reinforced serrated knife with flat head |
| CN102392656B (en) * | 2011-07-27 | 2013-11-27 | 中交隧道工程局有限公司 | Reinforced serrated knife with flat head |
| CN103008993A (en) * | 2012-11-29 | 2013-04-03 | 洛阳九久技术开发有限公司 | Manufacturing method of shield machine scraper |
| CN104060994A (en) * | 2014-06-30 | 2014-09-24 | 无锡市威海达机械制造有限公司 | Shield machine cutter |
| CN106216023A (en) * | 2016-08-30 | 2016-12-14 | 浙江华莎驰机械有限公司 | A kind of tooth header structure of lithotrite |
| CN109236307A (en) * | 2018-10-18 | 2019-01-18 | 上海隧道工程有限公司 | The blade construction of shield machine |
| CN109514060A (en) * | 2018-11-29 | 2019-03-26 | 洛阳金鹭硬质合金工具有限公司 | A kind of method of built-up welding scraper wearing layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Techgong Geotechnical Engineering Equipment Co., Ltd. Assignor: Liu Yuhai Contract record no.: 2013370000209 Denomination of utility model: Scraper back abrasion-prevention structure for shield tunneling machine Granted publication date: 20090520 License type: Exclusive License Record date: 20130905 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20170820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |