CN219570097U - Cutter head structure of tunnel boring machine - Google Patents
Cutter head structure of tunnel boring machine Download PDFInfo
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- CN219570097U CN219570097U CN202321280413.0U CN202321280413U CN219570097U CN 219570097 U CN219570097 U CN 219570097U CN 202321280413 U CN202321280413 U CN 202321280413U CN 219570097 U CN219570097 U CN 219570097U
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- cutter
- boring machine
- tunnel boring
- connecting rod
- locking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model belongs to the technical field of tunnel boring machine structures, and particularly relates to a tunnel boring machine cutterhead structure, which effectively improves the structural strength of an integral tunnel boring machine cutterhead, improves the cutter replacement efficiency in the process of hard rock tunnel construction, and ensures the operation safety of constructors.
Description
Technical Field
The utility model belongs to the technical field of tunnel boring machine structures, and particularly relates to a cutter head structure of a tunnel boring machine.
Background
Along with the rapid development of tunnel and underground engineering construction in China, particularly the starting of a Sichuan line engineering, a heading machine heading towards deep rock mass, the facing rock strength is gradually increased, the compressive strength of the rock is generally more than 100MPa, so that the hob is seriously worn and the tipping is frequently broken. The rock breaking process of the equipment can be summarized as hob rolling, rock slag is peeled off one by one from the face, most of common tunnel boring machines have the technical defect of serious hob abrasion in the process of tunneling hard rock, meanwhile, in the process of installing a conventional cutter head cutter, a cutter body installation structure of a rear-mounted cutter head is generally adopted, so that the rear-mounted installation space of the cutter head is reserved, the structural strength of the whole cutter head is further weakened, the excavation service life of the cutter head on the tunnel hard rock is greatly influenced, and therefore, the cutter head structure of the tunnel boring machine suitable for hard rock excavation is provided, the excavation efficiency of a hard rock tunnel is effectively improved, the rock breaking energy consumption is reduced, and the integral structural strength of the tunnel boring machine is effectively improved.
Disclosure of Invention
The utility model aims at:
the utility model provides a tunnel boring machine blade disc structure suitable for hard rock tunnel excavation, not only effectual improvement whole tunnel boring machine blade disc's structural strength improves the cutter change efficiency in the hard rock tunnel work progress, guarantees constructor's operation safety, further improves the efficiency of construction of tunnel boring machine under the hard rock operating mode moreover, reduces the construction cost of enterprise, improves the economic benefits of enterprise.
The technical scheme of the utility model is as follows:
the utility model provides a tunnel boring machine blade disc structure, including the cutter body, the cutter structure that sets up at the excircle periphery of cutter body is the dress sword structure after the fast-assembling, and the cutter structure that sets up at the interior circle periphery of cutter body is dress sword structure before the fast-assembling, and the cutter that the cutter body interior circle set up is interior arc or broken line shape and arranges the setting.
The quick-mounting type rear cutter mounting structure comprises a cutter box, a cutter holder is arranged in the cutter box, a clamping locking sleeve is further arranged on the cutter box, the cutter box is connected with the cutter holder through a locking bolt, the locking bolt is arranged through the clamping locking sleeve, a clamping piece is arranged in the clamping locking sleeve, a cutter body is arranged in the cutter holder, and the cutter body is arranged at the front end part of the cutter holder and is provided with a working position protruding out of the front end of the cutter box.
The clamping piece is a locking pin.
The tool apron is provided with a locking connecting part, the locking connecting part is provided with a positioning wedge block which is correspondingly matched with the locking connecting part, and the locking bolt compresses the positioning wedge block to be connected with the tool box.
The quick-mounting front-loading cutter structure comprises a cutter changing platform, wherein the cutter changing platform is detachably connected with a cutter head body, a guide body is arranged on the cutter changing platform, a connecting rod type push-pull device is further arranged on the cutter changing platform, and the connecting rod type push-pull device is connected with the cutter seat through a bolt connecting assembly.
The guide body is a rigid column body which is detachably connected with the tool changing platform in an arc/surface structure.
The connecting rod type push-pull device adopts a crank connecting rod structure, and the crank connecting rod structure comprises a rotatable first connecting rod and a second connecting rod connected with the bolt connecting assembly, wherein the first connecting rod is connected with the second connecting rod through a rotating pair.
The bolt connecting assembly comprises an installation connecting frame arranged at the rear end of the tool apron, the installation connecting frame is detachably connected with the tool apron, a bolt groove is formed in the installation connecting frame, and a locking tool apron and a positioning bolt of the connecting rod type push-pull device are arranged in the bolt groove.
The tool changing platform is also provided with a connecting pull rod.
And a pushing oil cylinder is also arranged on the tool changing platform.
The beneficial effects of the utility model are as follows:
this novel structural design's tunnel boring machine blade disc structure suitable for hard rock tunnel excavation not only effectually has improved the structural strength of whole tunnel boring machine blade disc, has improved the cutter change efficiency in the hard rock tunnel work progress, has guaranteed constructor's operation safety, has further improved the efficiency of construction of tunnel boring machine under the hard rock operating mode moreover, has reduced the construction cost of enterprise, has improved the economic benefits of enterprise.
Drawings
FIG. 1 is a schematic diagram of a front view of the present utility model;
FIG. 2 is a schematic structural view of a quick-fit rear loading knife structure of the present utility model;
FIG. 3 is a schematic structural view of a quick-fit front loading knife structure of the utility model;
fig. 4 is a schematic view of the mechanism of the link type push-pull device of the present utility model.
In the figure: 1 is a cutter body; 2 is a quick-mounting type rear cutter structure; 3 is a fast-assembling front loading knife structure; 4 is a tool box; 5 is a knife holder; 6 is a clamping locking sleeve; 7 is a locking bolt; 8 is a clamping piece; 9 is a cutter body; 10 is a locking connection; 11 is a positioning wedge block; 12 is a tool changing platform; 13 is a guide body; 14 is a connecting rod type push-pull device; 15 is a bolt connecting component; 16 is a first connecting rod; 17 is a second connecting rod; 18 is a revolute pair; 19 is a mounting connection rack; 20 is a latch slot; 21 is a positioning bolt; 22 is a connecting pull rod; 23 is a pushing cylinder.
Detailed Description
The following detailed description of specific embodiments of the utility model refers to the accompanying drawings.
As shown in fig. 1 to 4, a cutter head structure of a tunnel boring machine is provided, which comprises a cutter body 1, wherein the cutter structure arranged on the outer circumference of the cutter body is a fast-assembling type rear cutter structure 2, the cutter structure arranged on the inner circumference of the cutter body is a fast-assembling type front cutter structure 3, and the cutters arranged on the inner circumference of the cutter body are arranged in an inner arc shape or a fold line shape. All be furnished with cutter independent actuating system on the cutter body, and through one set of biax output motor control, the cutter that sets up on the cutter body is multiunit hobbing cutter and scrapes the slag plate, and its arrangement can satisfy the broken rock of excavation and scrape the slag demand, and the limit hobbing cutter that sets up at cutter body excircle periphery can adopt fast-assembling back dress sword structure, and the positive hobbing cutter that sets up at cutter body interior circle periphery can adopt fast-assembling front-loader sword structure. The cutter combination meets the requirement of full-section tunnel excavation. The combined cutter loading structure combining the quick-assembly rear cutter loading structure and the quick-assembly front cutter loading structure can further optimize the structural strength of the whole cutter head, further improve the replacement efficiency when the tunnel excavating cutter is replaced, and furthest meet the excavating requirement of a hard rock tunnel. The cutter that the cutter body was interior circle set up is interior arc or broken line shape and arranges the setting, and the wear-resisting material of corner welding in annular blade disc, the strip is arranged, forms certain contained angle with the tunnel axis, more is favorable to the excavation slag tap, still is provided with slag tap system at the cutter rear simultaneously for the discharge of broken rock dregs of combination cutter excavation. The slag discharging system comprises a screw conveyor, a belt conveyor and a scraper chain conveyor.
Preferably, the fast-assembling type rear loading knife structure comprises a knife box 4, a knife holder 5 is arranged in the knife box, a clamping locking sleeve 6 is further arranged on the knife box, the knife box is connected with the knife holder through a locking bolt 7, the locking bolt is arranged through the clamping locking sleeve, a clamping piece 8 is arranged in the clamping locking sleeve, a knife body 9 is arranged in the knife holder, and the knife body is arranged at the front end part of the knife holder and has a working position protruding out of the front end of the knife box. This structural design's back dress sword structure, the tool changing operation space of reservation on the cutter that can be very big reduces, and then further improves the overall structure intensity of cutter, at tool changing installation, only need with locking bolt connection toolbox and blade holder structure, locking bolt is in deep into the toolbox inside, the location chucking under the effect of clamping piece, avoids the vibrations impact of broken hard rock in-process to the not hard up influence of bolt, guarantees the structural stability of blade disc at broken rock in-process.
Preferably, the clamping member is a locking pin.
Preferably, in order to further improve the connection installation strength and the installation stability of the tool apron and the tool box, a locking connecting part 10 is arranged on the tool apron, the locking connecting part can adopt an inclined plane or groove surface structural design, a positioning wedge 11 correspondingly matched with the locking connecting part is arranged on the locking connecting part, the positioning wedge is also provided with an installation structural surface matched with the inclined plane or groove surface structure, and the positioning wedge is further pressed by a locking bolt to be connected with the tool box.
Preferably, the fast-assembling front loading structure include tool changing platform 12, tool changing platform and blade disc body detachable connection, at the cutter change in-process, the operation personnel come to blade disc front position department through the safety bin, carry out mechanized connection with tool changing platform and blade disc body, be provided with guide 13 on the tool changing platform, change the cutter and hoist to the guide through the hoist for change the cutter and prolong the guide steadily to fall on the tool changing platform, still be provided with connecting rod push-pull device 14 on the tool changing platform, connecting rod push-pull device is connected with the blade holder through bolt coupling assembling 15, in the cutter change in-process, through the motion of connecting rod push-pull device, realize the forward motion or the backward motion of change cutter, and then convenient and fast's realization tool changing process.
Preferably, the guide body is a rigid column, and the rigid column is detachably connected with the tool changing platform in an arc/surface structure.
Preferably, the connecting rod type push-pull device adopts a crank connecting rod structure, and the crank connecting rod structure comprises a rotatable first connecting rod 16 and a second connecting rod 17 connected with a bolt connecting assembly, wherein the first connecting rod and the second connecting rod are connected through a revolute pair 18.
Preferably, the bolt connection assembly comprises an installation connecting frame 19 arranged at the rear end of the tool apron, the installation connecting frame is detachably connected with the tool apron, a bolt groove 20 is formed in the installation connecting frame, a locking tool apron and a positioning bolt 21 of the connecting rod type push-pull device are arranged in the bolt groove, the bolt connection assembly can conveniently and rapidly realize the disassembly and installation connection of the push-pull device and the tool structure, and portability in the tool replacement process is further improved.
Preferably, a connecting pull rod 22 is further arranged on the tool changing platform, two ends of the connecting pull rod are respectively hinged with connecting end parts, one end of the connecting pull rod is hinged with the tool changing platform, the other end of the connecting pull rod is hinged with the back of the cutterhead, the connecting pull rod is arranged on two sides of the tool changing platform and is connected through a connecting pin shaft, a triangular stable structure is formed, and the stability of the tool changing platform is further improved.
Preferably, a pushing oil cylinder 23 is further arranged on the tool changing platform, and acting force is provided through the pushing oil cylinder after the tool is installed in the tool box, so that the installation height position of the tool is further adjusted, and further accurate and efficient tool changing is achieved.
This novel structural design's tunnel boring machine blade disc structure suitable for hard rock tunnel excavation not only effectually has improved the structural strength of whole tunnel boring machine blade disc, has improved the cutter change efficiency in the hard rock tunnel work progress, has guaranteed constructor's operation safety, has further improved the efficiency of construction of tunnel boring machine under the hard rock operating mode moreover, has reduced the construction cost of enterprise, has improved the economic benefits of enterprise.
Claims (10)
1. The utility model provides a tunnel boring machine blade disc structure, includes cutter body, its characterized in that: the cutter structure arranged on the outer circumference of the cutter body is a fast-assembling type rear cutter structure, the cutter structure arranged on the inner circumference of the cutter body is a fast-assembling type front cutter structure, and the cutters arranged on the inner circumference of the cutter body are arranged in an inner arc shape or a fold line shape.
2. A tunnel boring machine cutterhead structure according to claim 1, wherein: the quick-mounting type rear cutter mounting structure comprises a cutter box, a cutter holder is arranged in the cutter box, a clamping locking sleeve is further arranged on the cutter box, the cutter box is connected with the cutter holder through a locking bolt, the locking bolt is arranged through the clamping locking sleeve, a clamping piece is arranged in the clamping locking sleeve, a cutter body is arranged in the cutter holder, and the cutter body is arranged at the front end part of the cutter holder and is provided with a working position protruding out of the front end of the cutter box.
3. A tunnel boring machine cutterhead structure according to claim 2, wherein: the clamping piece is a locking pin.
4. A tunnel boring machine cutterhead structure according to claim 2 or 3, wherein: the tool apron is provided with a locking connecting part, the locking connecting part is provided with a positioning wedge block which is correspondingly matched with the locking connecting part, and the locking bolt compresses the positioning wedge block to be connected with the tool box.
5. A tunnel boring machine cutterhead structure according to claim 1, wherein: the quick-mounting front-loading cutter structure comprises a cutter changing platform, wherein the cutter changing platform is detachably connected with a cutter head body, a guide body is arranged on the cutter changing platform, a connecting rod type push-pull device is further arranged on the cutter changing platform, and the connecting rod type push-pull device is connected with the cutter seat through a bolt connecting assembly.
6. A tunnel boring machine cutterhead structure according to claim 5, wherein: the guide body is a rigid column body which is detachably connected with the tool changing platform in an arc/surface structure.
7. A tunnel boring machine cutterhead structure according to claim 5, wherein: the connecting rod type push-pull device adopts a crank connecting rod structure, and the crank connecting rod structure comprises a rotatable first connecting rod and a second connecting rod connected with the bolt connecting assembly, wherein the first connecting rod is connected with the second connecting rod through a rotating pair.
8. A tunnel boring machine cutterhead structure according to claim 5 or 7, wherein: the bolt connecting assembly comprises an installation connecting frame arranged at the rear end of the tool apron, the installation connecting frame is detachably connected with the tool apron, a bolt groove is formed in the installation connecting frame, and a locking tool apron and a positioning bolt of the connecting rod type push-pull device are arranged in the bolt groove.
9. A tunnel boring machine cutterhead structure according to claim 5, wherein: the tool changing platform is also provided with a connecting pull rod.
10. A tunnel boring machine cutterhead structure according to claim 5, wherein: and a pushing oil cylinder is also arranged on the tool changing platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321280413.0U CN219570097U (en) | 2023-05-25 | 2023-05-25 | Cutter head structure of tunnel boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321280413.0U CN219570097U (en) | 2023-05-25 | 2023-05-25 | Cutter head structure of tunnel boring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219570097U true CN219570097U (en) | 2023-08-22 |
Family
ID=87668970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321280413.0U Active CN219570097U (en) | 2023-05-25 | 2023-05-25 | Cutter head structure of tunnel boring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219570097U (en) |
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2023
- 2023-05-25 CN CN202321280413.0U patent/CN219570097U/en active Active
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