CN103032074A - Cutting tool for heading machine and manufacturing method thereof - Google Patents
Cutting tool for heading machine and manufacturing method thereof Download PDFInfo
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- CN103032074A CN103032074A CN2012105337008A CN201210533700A CN103032074A CN 103032074 A CN103032074 A CN 103032074A CN 2012105337008 A CN2012105337008 A CN 2012105337008A CN 201210533700 A CN201210533700 A CN 201210533700A CN 103032074 A CN103032074 A CN 103032074A
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- cutter hub
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Abstract
The invention provides a cutting tool for a heading machine and a manufacturing method of the cutting tool. The cutting tool comprises a tool body, a tool head arranged at one end of the tool body, and surfacing and wear-resisting columns annularly arranged on the side face of the tool body. The other end of the tool body is connected with the heading machine. The tool head is made of a hard alloy material which comprises tungsten carbide powder and is prepared by using cobalt powder as a bonding phase. According to the invention, the tool head is prepared by the hard alloy material which uses the tungsten carbide powder as a main material and is prepared by using cobalt powder as the bonding phase. Compared with the tool head in the prior art, the tool head provided by the invention is better in wear-resistance and impact resistance. The cutting tool effectively cuts rocks and meanwhile, the cutting tool is not over-worn. At the same time, the surfacing and wear-resisting columns are arranged to improve the wear-resistance of the side face of the tool body. The cutting tool for the heading machine better in cutting performance and wear-resistance is provided.
Description
Technical field
The present invention relates to the realm of building construction, relate in particular to a kind of development machine cutting tool and manufacture method thereof.
Background technology
For building operations, underground construction is increasing at present, the level of mechanization and automatically control improves constantly, and will use the development machines such as " push-bench ", " shield machine " and carry out underground driving in engineering construction, and development machine is be used to the machine of digging straight underground passage.The cutting need of work of development machine is used the cutting tool of various types.
The cutting element of available technology adopting, generally include cutter hub and the cutter head of being located at cutter hub one end, because development machine material to be dealt with mostly is hard rock, existing cutter head material is that abrasion resistance or impact resistance all are not enough to effectively process hard rock, namely allow to cutting rock, also comparatively serious to the wearing and tearing of cutter hub and cutter head.
Summary of the invention
It is better that the technical problem to be solved in the present invention provides a kind of cutting performance, and more wear-resisting development machine cutting tool.
In order to solve this technical problem, the invention provides a kind of development machine cutting tool, comprise cutter hub, be located at the cutter head of cutter hub one end, and the built-up welding and the wear-resisting post that are located on described cutter hub side, the other end of described cutter hub links to each other with a development machine, the making material of described cutter head is Hardmetal materials, and the raw material of described Hardmetal materials comprise tungsten carbide powder, and is prepared from take cobalt powder as Binder Phase.
The material of described cutter hub is for having passed through heat treated alloy steel material.
Weld together by the medium frequency welding connection technology between described cutter hub and the described cutter head, and be solder flux with a kind of composite soldering.
Put in 800 degrees centigrade the electric furnace to cool off gradually with stove by the described cutter hub after will welding and cutter head between described cutter hub and the described cutter head and link together.
Described cutter hub side is provided with circular trough, and described wear-resisting post is connected with described cutter hub by described circular trough.
Weld together by the medium frequency welding connection technology between described wear-resisting post and the described cutter hub, and be solder flux with a kind of composite soldering.
Put in 800 degrees centigrade the electric furnace to cool off gradually with stove by the described cutter hub after will welding and wear-resisting post between described cutter hub and the described wear-resisting post and link together.
Described composite soldering is the structure of two copper sheet therebetween a slice silver strips.
The present invention also provides the manufacture method of a kind of development machine with cutting tool, it is characterized in that: comprise the steps:
S01: the cutter hub of an alloy steel material is provided, a cutter head is welded on an end of described cutter hub; The making material of described cutter head is Hardmetal materials, and the raw material that prepare described Hardmetal materials comprise tungsten carbide powder, and take cobalt powder as Binder Phase;
S02: weld some wear-resisting posts in the side of described cutter hub;
S03: built-up welding is carried out in the side of described cutter hub process.
In described step S01, when welding described cutter head and described cutter hub, use a kind of composite soldering to be solder flux, and adopt the medium frequency welding connection technology to weld.
In described step S02, when welding described wear-resisting post and described cutter hub, use a kind of composite soldering to be solder flux, and adopt the medium frequency welding connection technology to weld.
Described composite soldering is the structure of two copper sheet therebetween a slice silver strips.
Also be included in the some circular troughs of side opening of described cutter hub among the described step S02, then described wear-resisting post be welded in the described circular trough, the quantity of described circular trough is corresponding with the quantity of described wear-resisting post.
In described step S01, also comprise with the welding after described cutter hub and cutter head put 800 degrees centigrade into electric furnace in cool off gradually with stove.
In described step S02, also comprise with the welding after described cutter hub and wear-resisting post put 800 degrees centigrade into electric furnace in cool off gradually with stove.
The present invention utilizes the self-control Hardmetal materials to make cutter head, described Hardmetal materials is main raw material(s) by tungsten carbide powder, cobalt powder is that Binder Phase is prepared from, compared to cutter head of the prior art, it has better abrasion resistance and impact resistance, in effective cutting rock, can also guarantee the wearing and tearing that himself are unlikely to too much, simultaneously, improved the anti-wear performance of cutter hub side by arranging of built-up welding and wear-resisting post.Provide a kind of cutting performance better, and more wear-resisting development machine cutting tool.
Description of drawings
Fig. 1 is the cross-sectional view that the development machine of one embodiment of the invention is used cutting tool;
Fig. 2 is the side-looking structural representation that the development machine of one embodiment of the invention is used cutting tool;
Among the figure, 1-cutter head; 2-cutter hub; 3-built-up welding; 4-wear-resisting post.
The specific embodiment
Below with reference to Fig. 1 and Fig. 2 development machine provided by the present invention is described in detail with cutting tool and manufacture method thereof, it is only for the present invention's one preferred embodiment, can think that those skilled in the art can make amendment to it in the scope that does not break away from spirit of the present invention and content and polishes according to known general knowledge.
Please refer to Fig. 1, and in conjunction with Fig. 2, the present embodiment provides a kind of development machine cutting tool, comprise cutter hub 2, be located at the cutter head 1 of cutter hub 2 one ends, and the built-up welding 3 and the wear-resisting post 4 that are located on described cutter hub 2 sides, the other end of described cutter hub 2 links to each other with a development machine, and the making material of described cutter head 1 is Hardmetal materials, the raw material of described Hardmetal materials comprise tungsten carbide powder, and are prepared from take cobalt powder as Binder Phase.
The present embodiment has been made cutter head 1 by the self-control Hardmetal materials, described Hardmetal materials is main raw material(s) by tungsten carbide powder, cobalt powder is that Binder Phase is prepared from, compared to cutter head of the prior art, it has better abrasion resistance and impact resistance, in effective cutting rock, can also guarantee the wearing and tearing that himself are unlikely to too much, simultaneously, by the arrange anti-wear performance that improved cutter hub side of built-up welding 3 with wear-resisting post 4.Provide a kind of cutting performance better, and more wear-resisting development machine cutting tool.In addition, adopt tungsten carbide powder and cobalt powder prepares to come the material of cutter head 1 more economical, save cost.
In the present embodiment, the welding rod specification of described built-up welding 3 is D237 or D212.
The material of described cutter hub 2 is for having passed through heat treated alloy steel material.The heat treatment Effective Raise cutter hub 2 anti-wear performances.The modified rear hardness of cutter hub 2 is HB250---280.
Weld together by the medium frequency welding connection technology between described cutter hub 2 and the described cutter head 1, and be solder flux with a kind of composite soldering.
Put in 800 degrees centigrade the electric furnace to cool off gradually with stove by the described cutter hub 2 after will welding and cutter head 1 between described cutter hub 2 and the described cutter head 1 and link together.
Described cutter hub 2 sides are provided with circular trough, and described wear-resisting post 4 is connected with described cutter hub 2 by described circular trough.
Weld together by the medium frequency welding connection technology between described wear-resisting post 4 and the described cutter hub 2, and be solder flux with a kind of composite soldering.
Put in 800 degrees centigrade the electric furnace to cool off gradually with stove by the described cutter hub 2 after will welding and wear-resisting post 4 between described cutter hub 2 and the described wear-resisting post 4 and link together.
Described composite soldering is the structure of two copper sheet therebetween a slice silver strips.
Adopting composite soldering in the present embodiment is solder flux, and uses the medium frequency welding connection technology to weld, so that cutter head is more firm with being connected of cutter hub, and the cutter head difficult drop-off.
Because cutter head 1 is different with the material of cutter hub 2, their coefficient of thermal expansion differs greatly, and both contractions of the cutter that welds are different, will produce stress, and cutter head 1 or cutter hub 2 are cracked, and affect the intensity of cutter.So select suitable solder flux.Described composite soldering is the structure of two copper sheet therebetween a slice silver strips.And behind welding described cutter hub 2 and described cutter head 1, cool off gradually with stove in the electric furnace of putting the described cutter hub 2 after the welding and cutter head 1 into 800 degrees centigrade, to prevent cutter head and cutter hub cracking.
The raw material of preparation shield structure blade material are mainly super thick WC powder and as the high-purity C o powder of Binder Phase.Adopted the physical property of WC powder and the chemical composition of 20 μ m as shown in table 1 respectively, the Co powder main performance of 1.2 μ m of employing sees Table 2.The WC powder of selecting and Co powder purity are very high, and impurity content is very low, are desirable material powders.
Table 1
Table 2
The present invention also provides the manufacture method of a kind of development machine with cutting tool, it is characterized in that: comprise the steps:
S01: the cutter hub 2 of an alloy steel material is provided, a cutter head 1 is welded on an end of described cutter hub 2; The making material of described cutter head 1 is Hardmetal materials, and the raw material that prepare described Hardmetal materials comprise tungsten carbide powder, and take cobalt powder as Binder Phase;
S02: weld some wear-resisting posts 4 in the side of described cutter hub 2;
S03: built-up welding is carried out in the side of described cutter hub 2 process.
In described step S01, when welding described cutter head 1 with described cutter hub 2, use a kind of composite soldering to be solder flux, and adopt the medium frequency welding connection technology to weld.
In described step S02, when welding described wear-resisting post 4 with described cutter hub 2, use a kind of composite soldering to be solder flux, and adopt the medium frequency welding connection technology to weld.
Described composite soldering is the structure of two copper sheet therebetween a slice silver strips.
Also be included in the some circular troughs of side opening of described cutter hub 2 among the described step S02, then described wear-resisting post 4 be welded in the described circular trough, the quantity of described circular trough is corresponding with the quantity of described wear-resisting post 4.
In described step S01, also comprise with the welding after described cutter hub 2 and cutter head 1 put 800 degrees centigrade into electric furnace in cool off gradually with stove.
In described step S02, also comprise with the welding after described cutter hub 2 and wear-resisting post 4 put 800 degrees centigrade into electric furnace in cool off gradually with stove.
In sum, the present invention utilizes the self-control Hardmetal materials to make cutter head 1, described Hardmetal materials is main raw material(s) by tungsten carbide powder, cobalt powder is that Binder Phase is prepared from, and compared to cutter head 1 of the prior art, it has better abrasion resistance and impact resistance, in effective cutting rock, can also guarantee the wearing and tearing that himself are unlikely to too much, simultaneously, by the arrange anti-wear performance that improved cutter hub side of built-up welding 3 with wear-resisting post 4.Provide a kind of cutting performance better, and more wear-resisting development machine cutting tool.
Claims (16)
1. development machine cutting tool, it is characterized in that: comprise cutter hub, be located at the cutter head of cutter hub one end, and the built-up welding and the wear-resisting post that are located on described cutter hub side, the other end of described cutter hub links to each other with a development machine, the making material of described cutter head is Hardmetal materials, the raw material of described Hardmetal materials comprise tungsten carbide powder, and are prepared from take cobalt powder as Binder Phase.
2. development machine cutting tool as claimed in claim 1, it is characterized in that: the material of described cutter hub is for having passed through heat treated alloy steel material.
3. development machine cutting tool as claimed in claim 1 is characterized in that: weld together by the medium frequency welding connection technology between described cutter hub and the described cutter head, and be solder flux with a kind of composite soldering.
4. development machine cutting tool as claimed in claim 3 is characterized in that: put in 800 degrees centigrade the electric furnace to cool off gradually with stove by the described cutter hub after will welding and cutter head between described cutter hub and the described cutter head and link together.
5. development machine cutting tool as claimed in claim 1, it is characterized in that: described cutter hub side is provided with circular trough, and described wear-resisting post is connected with described cutter hub by described circular trough.
6. development machine cutting tool as claimed in claim 1 is characterized in that: weld together by the medium frequency welding connection technology between described wear-resisting post and the described cutter hub, and be solder flux with a kind of composite soldering.
7. development machine cutting tool as claimed in claim 6 is characterized in that: put in 800 degrees centigrade the electric furnace to cool off gradually with stove by the described cutter hub after will welding and wear-resisting post between described cutter hub and the described wear-resisting post and link together.
8. such as claim 3 or 6 described development machine cutting tools, it is characterized in that: described composite soldering is the structure of two copper sheet therebetween a slice silver strips.
9. the manufacture method of a development machine usefulness cutting tool is characterized in that: comprise the steps:
S01: the cutter hub of an alloy steel material is provided, a cutter head is welded on an end of described cutter hub; The making material of described cutter head is Hardmetal materials, and the raw material that prepare described Hardmetal materials comprise tungsten carbide powder, and take cobalt powder as Binder Phase;
S02: weld some wear-resisting posts in the side of described cutter hub;
S03: built-up welding is carried out in the side of described cutter hub process.
10. a kind of development machine as claimed in claim 9 is characterized in that: in described step S01, when welding described cutter head and described cutter hub, use a kind of composite soldering to be solder flux, and adopt the medium frequency welding connection technology to weld with the manufacture method of cutting tool.
11. a kind of development machine as claimed in claim 9 is characterized in that: in described step S02, when welding described wear-resisting post and described cutter hub, use a kind of composite soldering to be solder flux, and adopt the medium frequency welding connection technology to weld with the manufacture method of cutting tool.
12. such as the manufacture method of claim 10 or 11 described a kind of development machines usefulness cutting tools, it is characterized in that: described composite soldering is the structure of two copper sheet therebetween a slice silver strips.
13. a kind of development machine as claimed in claim 9 manufacture method of cutting tool, it is characterized in that: the some circular troughs of side opening that also are included in described cutter hub among the described step S02, then described wear-resisting post is welded in the described circular trough, the quantity of described circular trough is corresponding with the quantity of described wear-resisting post.
14. development machine as claimed in claim 9 with the manufacture method of cutting tool, is characterized in that: in described step S01, also comprise in the electric furnace of putting the described cutter hub after the welding and cutter head into 800 degrees centigrade and cooling off gradually with stove.
15. development machine as claimed in claim 9 with the manufacture method of cutting tool, is characterized in that: in described step S02, also comprise in the electric furnace of putting the described cutter hub after the welding and wear-resisting post into 800 degrees centigrade and cooling off gradually with stove.
16. the development machine as claimed in claim 9 manufacture method of cutting tool, it is characterized in that: described cutter hub is for having passed through heat treated alloy steel material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105337008A CN103032074A (en) | 2012-12-11 | 2012-12-11 | Cutting tool for heading machine and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105337008A CN103032074A (en) | 2012-12-11 | 2012-12-11 | Cutting tool for heading machine and manufacturing method thereof |
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| CN103032074A true CN103032074A (en) | 2013-04-10 |
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| CN2012105337008A Pending CN103032074A (en) | 2012-12-11 | 2012-12-11 | Cutting tool for heading machine and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727825A (en) * | 2015-03-31 | 2015-06-24 | 罗云 | Cutting tool structure of shield tunneling machine |
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| CN102418022A (en) * | 2011-10-31 | 2012-04-18 | 山东金天牛矿山机械有限公司 | Hard alloy material for ore |
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| CN104727825A (en) * | 2015-03-31 | 2015-06-24 | 罗云 | Cutting tool structure of shield tunneling machine |
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Application publication date: 20130410 |