CN206495679U - A kind of shield scraper used in hard-soft heterogeneous ground - Google Patents
A kind of shield scraper used in hard-soft heterogeneous ground Download PDFInfo
- Publication number
- CN206495679U CN206495679U CN201621356915.7U CN201621356915U CN206495679U CN 206495679 U CN206495679 U CN 206495679U CN 201621356915 U CN201621356915 U CN 201621356915U CN 206495679 U CN206495679 U CN 206495679U
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- hard
- cutter hub
- scraper
- cutting edge
- shield
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Abstract
A kind of shield scraper used in hard-soft heterogeneous ground, is related to a kind of shield scraper, including cutter hub（1）, in cutter hub（1）Above a side be provided with cutting edge 31, in cutter hub（1）The inclined-plane on top is provided with mounting hole, in cutter hub（1）Back be provided with hard alloy（2）, in cutter hub（1）Cutting edge（31）Position is provided with wear-resistant alloy layer（3）；The utility model can make cutter have good shock resistance in cutting edge position build-up wear-resistant alloy-layer, it is to avoid scraper body is hit in poor strata and to cause alloy to collapse broken；Cutter hub back soldering simultaneously has hard alloy, can effectively protect scraper body, substantially increase service life of the scraper in slurry shield and the larger stratum of tempering property.
Description
Technical field
The utility model is related to a kind of shield scraper, is scraped more particularly, to a kind of shield used in hard-soft heterogeneous ground
Knife.
Background technology
It is known, when slurry balance shield machine is tunneled in hard-soft heterogeneous ground, hard alloy at common scraper cutting edge
Often collapsed because being hit it is broken, come off, cause scraper body Fast Wearing；The service life of scraper is greatly reduced,
It has impact on efficiency of construction.
The content of the invention
In order to overcome the shortcomings of in background technology, the utility model discloses a kind of shield used in hard-soft heterogeneous ground
Structure scraper, realizes the purpose of the shock resistance and life-span that improve cutter in poor strata.
In order to realize the goal of the invention, the utility model is adopted the following technical scheme that：
A kind of shield scraper used in hard-soft heterogeneous ground, including cutter hub, are being provided with above cutter hub on a side
Cutting edge, is provided with mounting hole on the inclined-plane on cutter hub top, hard alloy is provided with the back of cutter hub, at the cutting edge position of cutter hub
Provided with wear-resistant alloy layer.
The described shield scraper used in hard-soft heterogeneous ground, removes other positions at cutter hub back and cutting edge position
It is equipped with wear-resistant alloy layer.
The described shield scraper used in hard-soft heterogeneous ground, the carbide filler is welded in the back of cutter hub.
The described shield scraper used in hard-soft heterogeneous ground, the wear-resistant alloy layer heap is welded in cutting edge position.
The described shield scraper used in hard-soft heterogeneous ground, the thickness of the wear-resistant alloy layer built-up welding is 3-5mm,
The thickness of hard alloy welding-on is 18-22mm.
By adopting the above-described technical solution, the utility model has the advantages that：
The shield scraper described in the utility model used in hard-soft heterogeneous ground, in cutting edge position build-up wear-resistant alloy
Layer can make cutter have good shock resistance, it is to avoid scraper body is hit in poor strata and causes alloy to collapse
It is broken；Cutter hub back soldering simultaneously has hard alloy, can effectively protect scraper body, substantially increase scraper in slurry shield and mill
Service life in the larger stratum of whetstone property；
When scraper of the present utility model is constructed in hard-soft heterogeneous ground, service life and the construction of scraper are effectively increased
Efficiency, and construction cost is reduced, it is suitable for the earth layer of solitary stone in hard-soft heterogeneous ground and particle diameter ≯ 500mm.
Brief description of the drawings
Fig. 1 is dimensional structure diagram of the present utility model；
Fig. 2 is front view of the present utility model；
Fig. 3 is Fig. 2 top view；
In figure：1st, cutter hub；2nd, hard alloy；3rd, wear-resistant alloy layer；31st, cutting edge.
Embodiment
Explanation the utility model that can be detailed by the following examples, open the purpose of this utility model is intended to protection
All technological improvements in the range of the utility model.
The shield scraper used in hard-soft heterogeneous ground with reference to described in accompanying drawing 1-3, including cutter hub 1, on cutter hub 1
One side is provided with cutting edge 31, and mounting hole is provided with the inclined-plane on the top of cutter hub 1, and hard alloy 2 is provided with the back of cutter hub 1,
Wear-resistant alloy layer 3 is provided with the position of cutting edge 31 of cutter hub 1.
The described shield scraper used in hard-soft heterogeneous ground, removes the other of the back of cutter hub 1 and the position of cutting edge 31
Position is equipped with wear-resistant alloy layer 3.
The described shield scraper used in hard-soft heterogeneous ground, the soldering of hard alloy 2 is at the back of cutter hub 1.
The described shield scraper used in hard-soft heterogeneous ground, the heap of wear-resistant alloy layer 3 is welded in the position of cutting edge 31.
The described shield scraper used in hard-soft heterogeneous ground, the thickness of the built-up welding of wear-resistant alloy layer 3 is 3-
5mm, the thickness of the welding-on of hard alloy 2 is 18-22mm..
Implement the shield scraper described in the utility model used in hard-soft heterogeneous ground, cutter hub 1 is overall to use high-quality
Alloy steel material, hard alloy 2 is provided with the back of the one side of cutter hub 1, cutter hub 1 is effectively protected, substantially increases scraper in mud
Service life in water quality structure and the larger stratum of tempering property, the position of cutting edge 31 of a side and except cutter hub 1 is carried on the back on cutter hub 1
Other positions in portion are respectively provided with wear-resistant alloy layer 3, improve shock resistance and the abrasion resistance of cutter, are suitable in hard-soft heterogeneous ground
With particle diameter ≯ 500mm earth layer of solitary stone.
The non-detailed portion of the utility model is prior art.
The embodiment selected herein to disclose goal of the invention of the present utility model, is presently considered to be suitable,
However, it should be understood that, the utility model is intended to include the institute of all embodiments belonged in the range of this design and utility model
Change and improve.
Claims (5)
1. a kind of shield scraper used in hard-soft heterogeneous ground, including cutter hub（1）, it is characterized in that：In cutter hub（1）Above
One side is provided with cutting edge 31, in cutter hub（1）The inclined-plane on top is provided with mounting hole, in cutter hub（1）Back provided with hard close
Gold（2）, in cutter hub（1）Cutting edge（31）Position is provided with wear-resistant alloy layer（3）.
2. the shield scraper according to claim 1 used in hard-soft heterogeneous ground, it is characterized in that：Remove cutter hub（1）
Back and cutting edge（31）Other positions at position are equipped with wear-resistant alloy layer（3）.
3. the shield scraper according to claim 1 used in hard-soft heterogeneous ground, it is characterized in that：The hard alloy
（2）Soldering is in cutter hub（1）Back.
4. the shield scraper according to claim 1 used in hard-soft heterogeneous ground, it is characterized in that：The antifriction alloy
Layer（3）Heap is welded in cutting edge（31）Position.
5. the shield scraper according to claim 1 used in hard-soft heterogeneous ground, it is characterized in that：The antifriction alloy
Layer（3）The thickness of built-up welding is 3-5mm, hard alloy（2）The thickness of welding-on is 18-22mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621356915.7U CN206495679U (en) | 2016-12-12 | 2016-12-12 | A kind of shield scraper used in hard-soft heterogeneous ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621356915.7U CN206495679U (en) | 2016-12-12 | 2016-12-12 | A kind of shield scraper used in hard-soft heterogeneous ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495679U true CN206495679U (en) | 2017-09-15 |
Family
ID=59801390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621356915.7U Active CN206495679U (en) | 2016-12-12 | 2016-12-12 | A kind of shield scraper used in hard-soft heterogeneous ground |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-12-12 CN CN201621356915.7U patent/CN206495679U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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