CN210888949U - Novel center fishtail cutter for push bench - Google Patents
Novel center fishtail cutter for push bench Download PDFInfo
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- CN210888949U CN210888949U CN201921583229.7U CN201921583229U CN210888949U CN 210888949 U CN210888949 U CN 210888949U CN 201921583229 U CN201921583229 U CN 201921583229U CN 210888949 U CN210888949 U CN 210888949U
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- cutter
- tool apron
- push bench
- fishtail
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Abstract
The utility model discloses a novel central fishtail cutter for push bench, which comprises a cutter body, an alloy cutter holder, hard alloy and a wear-resistant layer, wherein the connecting part of the cutter body and the cutter head is provided with a groove, the upper part of the cutter body is provided with a groove for installing the alloy cutter holder, the alloy cutter holder is connected with the cutter body in a welding way, and the two sides of the alloy cutter holder are provided with alloy installing grooves; the hard alloy is connected with the alloy tool apron through silver brazing and distributed on the left side and the right side of the alloy tool apron, the hard alloy cutting edge faces the soil facing surface of the tool for cutting along the rotating track, and the alloy tool apron on the back of the hard alloy is used for supporting in the stress direction. The utility model discloses a control carbide cutting edge's orbit distribution realizes eliminating the purpose of cutting blind area, through arranging the carbide cutting edge about in the both sides of cutter body to avoid the interference between the adjacent orbit carbide cutting edge, makeed not only satisfy the cutting of non-blind area but also realized each other noninterfere between the adjacent orbit cutting edge.
Description
Technical Field
The utility model relates to a novel push bench is with central fishtail sword belongs to the tunnel construction field.
Background
The shield machine and the pipe jacking machine are special engineering machinery for tunneling, and are large-scale tunnel automatic construction equipment with a complex structure, which integrates mechanical, electrical, hydraulic, fluid, optical, sensing and information technologies. The cutter head is an important component in the mechanism and is used for cutting soil on the tunnel face, but the linear velocity of the cutter head is reduced along with the smaller distance from the center of the cutter head, and the theoretical central linear velocity is zero, so that certain difficulty is caused for cutting the soil, other types of cutters are not easy to install, the currently applied central fishtail cutter cannot completely eliminate the cutting blind area, and meanwhile, the high-hardness alloy installed on the cutter head is easy to break.
Disclosure of Invention
The utility model aims to solve the technical problem that to the defect that prior art exists, a novel center fishtail sword for push bench is provided.
In order to solve the technical problem, the utility model provides a novel central fishtail cutter for a push bench, which comprises a cutter body, an alloy cutter holder, hard alloy and a wear-resistant layer, wherein the connecting part of the cutter body and the cutter disc is provided with a groove, the upper part of the cutter body is provided with a groove for installing the alloy cutter holder, the alloy cutter holder is connected with the cutter body in a welding way, and the two sides of the alloy cutter holder are provided with alloy installing grooves; the hard alloy is connected with the alloy tool apron through silver brazing and distributed on the left side and the right side of the alloy tool apron, the hard alloy cutting edge faces the soil facing surface of the tool for cutting along the rotating track, and the alloy tool apron on the back of the hard alloy is used for supporting in the stress direction.
The wearing layer adopts wear-resisting electrode build-up welding, and its thickness is 3 ~ 5mm, and the distance from the alloy mounting groove is 3 ~ 5 mm.
The size of the groove is C19.
The contact ratio between adjacent carbide cutting edges is 2 mm.
The cutter body and the alloy cutter holder are made of Q345B.
YG13C is selected as the hard alloy.
Except for the welding part, the whole body is subjected to paint spraying and rust preventing treatment.
Has the advantages that: the utility model discloses a control carbide cutting edge's orbit distribution realizes eliminating the purpose of cutting blind area, through arranging the carbide cutting edge about in the both sides of cutter body to avoid the interference between the adjacent orbit carbide cutting edge, makeed not only satisfy the cutting of non-blind area but also realized each other noninterfere between the adjacent orbit cutting edge.
Drawings
FIG. 1a is a schematic front view of the center fishtail knife of the present invention;
FIG. 1b is a schematic top view of the center fishtail knife of the present invention;
FIG. 1c is a schematic side view of the structure of the center fishtail knife of the present invention;
FIG. 2a is a schematic front view of the alloy blade holder and the hard alloy block of the center fishtail blade of the present invention;
FIG. 2b is a schematic side view of the combination of the alloy blade holder and the hard alloy block of the center fishtail blade of the present invention;
FIG. 3 is a schematic view of the installation of the center fishtail cutter of the present invention on the cutter head;
fig. 4 is the track distribution diagram of the center fishtail of the utility model.
In the figure: the tool comprises a tool body 1, an alloy tool apron 2, hard alloy 3, a wear-resistant layer 4, a groove 11, a groove 12 and an alloy mounting groove.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Fig. 1a shows a schematic front view of the center fishtail knife structure of the present invention.
Fig. 1b is a schematic top view of the center fishtail knife of the present invention.
Fig. 1c is a schematic side view of the center fishtail knife of the present invention.
The utility model provides a novel push bench is with central fishtail sword, including cutter body 1, alloy blade holder 2, carbide 3 and wearing layer 4.
The connecting part of the cutter body 1 and the cutter head is provided with a groove 11, the upper part of the connecting part is provided with a groove 12 for installing the alloy cutter holder 2, the alloy cutter holder 2 is connected with the cutter body 1 in a welding mode, and alloy installing grooves 21 are formed in two sides of the connecting part.
Fig. 2a is a schematic front view of the alloy blade holder and the hard alloy block of the central fishtail blade of the present invention.
Fig. 2b is a schematic side view of the combination of the alloy blade holder and the hard alloy block of the central fishtail blade of the present invention.
The hard alloy 3 is connected with the alloy tool apron 2 in a silver brazing mode and distributed on the left side and the right side of the alloy tool apron 2, the cutting edge of the hard alloy 3 faces the soil-facing surface of the cutting tool along the rotating track, and the alloy tool apron 2 on the back of the hard alloy 3 is used for supporting in the stress direction.
The wearing layer 4 adopts the hardfacing electrode build-up welding, and its thickness is 3 ~ 5mm, and the distance from alloy mounting groove 21 is 3 ~ 5 mm.
The groove 11 has a size of C19.
The contact ratio between adjacent carbide cutting edges is 2 mm.
The material of the cutter body 1 and the alloy cutter holder 2 is Q345B.
YG13C is selected as the hard alloy 3.
Except for the welding part, the whole body is subjected to paint spraying and rust preventing treatment.
Fig. 3 is a schematic view showing the installation of the center fishtail knife on the cutter head.
The central fishtail cutter is arranged at the central position of the cutter head, and one cutter head is arranged, so that the cutting efficiency of the soil body at the center of the cutter head is improved, and the generation of a central soil cutting blind area is effectively avoided.
Fig. 4 shows the cutting track of the cutting edge of the center fishtail knife of the present invention.
As can be shown in the figure, the soil body is cut sufficiently without blind areas.
The utility model discloses a control carbide cutting edge's orbit distribution realizes eliminating the purpose of cutting blind area, through arranging the carbide cutting edge about in the both sides of cutter body to avoid the interference between the adjacent orbit carbide cutting edge, makeed not only satisfy the cutting of non-blind area but also realized each other noninterfere between the adjacent orbit cutting edge.
The above embodiments of the present invention are merely examples, not the only ones, and all changes within the scope of the present invention or the same range of the present invention are all surrounded by the present invention.
Claims (7)
1. The utility model provides a novel push bench is with central fishtail sword which characterized in that: the alloy cutting tool comprises a tool body (1), an alloy tool apron (2), hard alloy (3) and a wear-resistant layer (4), wherein a groove (11) is formed in the connecting part of the tool body (1) and the tool apron, a groove 12 for mounting the alloy tool apron (2) is formed in the upper part of the tool body, the alloy tool apron (2) is connected with the tool body (1) in a welding mode, and alloy mounting grooves (21) are formed in two sides of the alloy tool apron; the hard alloy (3) is connected with the alloy tool apron (2) in a silver brazing mode and distributed on the left side and the right side of the alloy tool apron (2), the cutting edge of the hard alloy (3) faces the soil-facing surface of the cutter cutting along the rotating track, and the alloy tool apron (2) on the back of the hard alloy (3) is used for supporting in the stress direction.
2. The novel central fishtail cutter for the push bench of claim 1 is characterized in that: the wear-resistant layer (4) is formed by surfacing of a wear-resistant welding rod, the thickness of the wear-resistant layer is 3-5 mm, and the distance from the wear-resistant welding rod to the alloy installation groove (21) is 3-5 mm.
3. The novel central fishtail cutter for the push bench of claim 1 is characterized in that: the size of the groove (11) is C19.
4. The novel central fishtail cutter for the push bench of claim 1 is characterized in that: the contact ratio between adjacent carbide cutting edges is 2 mm.
5. The novel central fishtail cutter for the push bench of claim 1 is characterized in that: the cutter body (1) and the alloy cutter holder (2) are made of Q345B.
6. The novel central fishtail cutter for the push bench of claim 1 is characterized in that: YG13C is selected as the hard alloy (3).
7. The novel center fishtail cutter for push bench according to any of claims 1-6, characterized in that: except for the welding part, the whole body is subjected to paint spraying and rust preventing treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921583229.7U CN210888949U (en) | 2019-09-23 | 2019-09-23 | Novel center fishtail cutter for push bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921583229.7U CN210888949U (en) | 2019-09-23 | 2019-09-23 | Novel center fishtail cutter for push bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210888949U true CN210888949U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921583229.7U Active CN210888949U (en) | 2019-09-23 | 2019-09-23 | Novel center fishtail cutter for push bench |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566220A (en) * | 2019-09-23 | 2019-12-13 | 济南重工股份有限公司 | Novel center fishtail cutter for push bench |
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2019
- 2019-09-23 CN CN201921583229.7U patent/CN210888949U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566220A (en) * | 2019-09-23 | 2019-12-13 | 济南重工股份有限公司 | Novel center fishtail cutter for push bench |
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