CN212105877U - Cutter head of subway tunnel shield machine - Google Patents
Cutter head of subway tunnel shield machine Download PDFInfo
- Publication number
- CN212105877U CN212105877U CN202020798618.8U CN202020798618U CN212105877U CN 212105877 U CN212105877 U CN 212105877U CN 202020798618 U CN202020798618 U CN 202020798618U CN 212105877 U CN212105877 U CN 212105877U
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- Prior art keywords
- cutter head
- cutter
- subway tunnel
- wear
- tunnel shield
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Abstract
The utility model belongs to the technical field of shield tunneling machine, in particular to a cutter head of a subway tunnel shield tunneling machine, which comprises a cutter head box body and an alloy wear-resistant disc, wherein the alloy wear-resistant disc is arranged in the cutter head box body, the cutter head is connected in the cutter head box body through a rotating shaft, an integrally formed hobbing cutter clamping groove is welded on the cutter head, a single-blade hobbing cutter is clamped and fixed on the hobbing cutter clamping groove, a rotating shaft connecting port is arranged at the center of the cutter head, a wear-resistant grid is welded at the front end of the rotating shaft connecting port, the cutter head box body is sleeved with the rotating shaft through a butt joint A, and a bolt socket a is fixed on the rotating shaft through a screw piece, the cutter head of the subway tunnel shield tunneling machine can improve the structure of the shield tunneling machine for processing some soil with hard texture, and can prevent pebbles from damaging the structure, by setting the injection port, a modifying agent such as foam can be sprayed.
Description
Technical Field
The utility model belongs to the technical field of the shield constructs the machine, concretely relates to subway tunnel shield constructs quick-witted blade disc.
Background
Since the 60 s of the 20 th century, with the development and utilization of underground spaces by people, shield technology has made a great development in China and is widely used in underground rail transit, water pipelines, electric tunnels and other projects, while shield machines are the most common large-scale high-tech comprehensive engineering equipment for shield construction technology, and currently, earth pressure balance shield machines are mainly used in underground rail transit for sandy gravel strata. The earth pressure balance shield is characterized in that the earth pressure balance shield is constructed by excavating tunnel face dregs into an earth bin through a cutter head, adjusting the rotating speed and the propelling speed of a screw machine to enable the earth bin and tunnel face pressure to reach a dynamic balance state, the cutter head is an important component of the shield machine and mainly plays a role in excavating the dregs, stabilizing the tunnel face and stirring the dregs, and the structural design of the cutter head and the configuration of a cutter are directly related to the success or failure of shield construction.
When a cutter head of the existing shield machine works in a sandy gravel stratum, due to high hardness of pebbles, the problems that the torque of the cutter head is too large, the cutter head is blocked and mud cakes are formed and the like can occur in the excavation process, and meanwhile, the pebbles also seriously abrade a cutter head cutter screw machine; and when the tunnel is dug deeply, the sand and gravel stratum has strong air permeability, the air pressure is difficult to keep, and the operation of entering the warehouse under pressure is difficult.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem that exists among the prior art, the utility model provides a subway tunnel shield constructs quick-witted blade disc has that wear resistance is good, excavates efficient, simple to operate's characteristics.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a subway tunnel shield constructs quick-witted blade disc, includes blade disc box and alloy wear-resisting dish, the inside alloy wear-resisting dish that is provided with of blade disc box, the inside blade disc that is connected with through the pivot of blade disc box, the welding has integrated into one piece's hobbing cutter draw-in groove on the blade disc, the joint is fixed with the single-edged hobbing cutter on the hobbing cutter draw-in groove, the pivot connector has been seted up at the blade disc center, and the front end welding of pivot connector has wear-resisting net, the blade disc box cup joints the pivot through interface A, and bolt socket an passes through the screw spare to be fixed in the pivot, be provided with reverse shell sword and in the same direction as to the shell sword in the interface A outside, the blade disc cup joints alloy wear-resisting dish in the pivot through interface B with the centre of shell sword in the same direction.
As the utility model discloses a preferred technical scheme of subway tunnel shield constructs quick-witted blade disc, the single-edged hobbing cutter is circular tool bit, and the both sides of single-edged hobbing cutter have all welded the fixed head.
As the utility model discloses a preferred technical scheme of subway tunnel shield constructs quick-witted blade disc, be provided with twenty one injection ports on the blade disc altogether, and the injection port uses the three evenly distributed as a set of on the blade disc.
As the utility model discloses a preferred technical scheme of subway tunnel shield constructs quick-witted blade disc, be provided with eight hobbing cutter draw-in grooves on the blade disc, and install six single-edged hobbing cutters on every hobbing cutter draw-in groove in the dislocation.
As the utility model discloses a subway tunnel shield constructs preferred technical scheme of quick-witted blade disc, four bolt socket an have been seted up on the interface A, and the outside of interface A becomes the concatenation formula welding and has eight reverse shell swoves and the shell sword of same direction.
As the utility model discloses a preferred technical scheme of subway tunnel shield constructs quick-witted blade disc, the wear-resisting dish of alloy is circular structure, and the inside wear-resisting steel sheet of alloy that is provided with six big faces of wear-resisting dish of alloy.
Compared with the prior art, the beneficial effects of the utility model are that: this subway tunnel shield constructs quick-witted blade disc, set up the single-edged hobbing cutter of a plurality of dislocation through the hobbing cutter draw-in groove, can improve the shield and construct the hard soil structure of some textures of machine processing, solved because the cobble hardness is high, the blade disc moment of torsion is too big can appear in excavation process, the blade disc is blocked and the mud cake scheduling problem, setting through the wear-resisting dish of alloy, can prevent that the cobble hardness height from producing the destruction to the structure of shield structure machine, the very serious problem of cobble to cutter screw machine wearing and tearing has been solved, setting through the injection port, can spray improver such as foam, when having solved and excavating deeply, the sand cobble stratum gas permeability is strong, be difficult to the atmospheric pressure of protecting, take the pressure to advance the difficult problem of storehouse operation.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of a reverse shell knife and a forward shell knife in the present invention;
FIG. 3 is a schematic structural view of a single-blade hob in the present invention;
FIG. 4 is a schematic structural view of an alloy wear-resistant disc of the present invention;
in the figure: 1. a cutter head box body; 2. a cutter head; 3. an injection port; 4. clamping grooves of the hob; 5. a single-edge hob; 6. a rotating shaft connecting port; 7. wear-resistant grids; 8. a reverse shell knife; 9. a straightforward shell knife; 10. a bolt insertion opening a; 11. a butt joint port A; 12. a fixed head; 13. an alloy wear resistant disc; 14. a bolt insertion opening b; 15. for the interface B.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides the following technical solutions: a cutter head of a subway tunnel shield machine comprises a cutter head box body 1 and an alloy wear-resistant disc 13, wherein the alloy wear-resistant disc 13 is arranged inside the cutter head box body 1, the cutter head 2 is connected inside the cutter head box body 1 through a rotating shaft, an integrally formed hob clamping groove 4 is welded on the cutter head 2, a single-edge hob 5 is clamped and fixed on the hob clamping groove 4, a rotating shaft connecting port 6 is arranged at the center of the cutter head 2, and the front end of the rotating shaft connecting port 6 is welded with a wear-resistant grid 7, the cutter head box body 1 is sleeved with the rotating shaft through a butt joint port A11, and a bolt socket a10 is fixed on the rotating shaft through a screw piece, the outer side of the butt joint port A11 is provided with a reverse shell knife 8 and a forward shell knife 9, the middle of the cutter head 2, the reverse shell knife 8 and the forward shell knife 9 is sleeved with an alloy wear-resistant disc 13 on the rotating shaft through a butt joint port B15, and is fixed by a screw piece through a bolt socket b14, and the cutter head 2 is provided with an injection port 3.
Specifically, the single-edged hob 5 is a circular cutter head, and the fixing heads 12 are welded on both sides of the single-edged hob 5, in this embodiment, the fixing heads 12 on both sides of the single-edged hob 5 can make the single-edged hob 5 more stably installed in the hob clamping groove 4, so that the single-edged hob 5 is more stable in operation.
Specifically, twenty-one injection ports 3 are arranged on the cutter head 2, and the three injection ports 3 are uniformly distributed on the cutter head 2 in a group.
Specifically, be provided with eight hobbing cutter draw-in grooves 4 on the blade disc 2, and install six single-edged hobbing cutters 5 on every hobbing cutter draw-in groove 4 dislocation, in this embodiment, through the setting of a plurality of hobbing cutter draw-in grooves 4, can install a plurality of single-edged hobbing cutters 5 and evenly contact soil face simultaneous working, improved efficiency, also solved single-edged hobbing cutter 5 because of wearing and tearing problem of damaging too fast easily.
Specifically, four 10 bolt sockets a have been seted up on interface A11, and make the concatenation formula welding in the outside of interface A11 have eight reverse shell sword 8 and in the same direction shell sword 9, in this embodiment, through a plurality of reverse shell sword 8 and in the same direction shell sword 9, can be favorable to the dregs to get into the soil storehouse smoothly, can reduce partly wearing and tearing, improve the propulsive speed.
Specifically, alloy wear-resisting dish 13 is circular structure, and alloy wear-resisting steel sheet that alloy wear-resisting dish 13 is inside to be provided with six large faces, in this embodiment, through the antifriction plate that alloy wear-resisting dish 13 polylith special alloy was made, can effectually increase the life of shield structure machine wear-resisting dish, has reduced the problem of changing too fast and needing a large amount of fund input.
The utility model discloses a theory of operation and use flow: the utility model is applicable after installation, firstly, the cutter head box body 1 is erected, then a hoisting tool is used to cooperate with manpower to sleeve the butt joint port A11 on a rotating shaft in the cutter head box body 1, then a screw piece is used to pass through the bolt socket a10 to fix the butt joint port A11 on the rotating shaft, the butt joint port A11 is welded with an integrally formed reverse shell knife 8 and a forward shell knife 9, then an alloy wear-resistant disc 13 is installed, the alloy wear-resistant disc 13 is firstly sleeved on the rotating shaft in the cutter head box body 1 through the butt joint port B15, the screw piece is also used to pass through the bolt socket B14 to fix the butt joint port B15 on the rotating shaft, then the cutter head 2 is horizontally placed, the single-blade hob 5 of each part is installed in the hob clamping groove 4 through the hob clamping groove 4, the integral formed injection port 3 and the wear-resistant grid 7 of the cutter head 2, after the installation is finished, the whole process is hoisted, the cutter head 2 is installed at the front end of the cutter head, after the whole structure of the cutter head box body 1 is installed, the cutter head box body 1 is installed on the main structure of the shield tunneling machine and can be used.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a subway tunnel shield constructs quick-witted blade disc, includes blade disc box (1) and alloy wear-resisting dish (13), inside alloy wear-resisting dish (13), its characterized in that of being provided with of blade disc box (1): the utility model discloses a wear-resistant alloy shell knife, including cutter head box (1), cutter head box (1) inside is connected with cutter head (2) through the pivot, the welding has integrated into one piece's hobbing cutter draw-in groove (4) on cutter head (2), the joint is fixed with single-edged hobbing cutter (5) on hobbing cutter draw-in groove (4), pivot connector (6) have been seted up at cutter head (2) center, and the front end welding of pivot connector (6) has wear-resisting net (7), cutter head box (1) cup joints the pivot through interface A (11), and bolt socket a (10) is fixed in the pivot through the screw spare, be provided with reverse shell sword (8) and in the same direction shell sword (9) outside interface A (11), cutter head (2) cup joints alloy wear-resisting dish (13) in the pivot through interface B (15) with reverse shell sword (8) and in the same direction shell sword (9) the centre, and use the screw spare to fix, an injection port (3) is arranged on the cutter head (2).
2. The cutter head of the subway tunnel shield machine according to claim 1, wherein: the single-edged hob (5) is a circular cutter head, and fixing heads (12) are welded on two sides of the single-edged hob (5).
3. The cutter head of the subway tunnel shield machine according to claim 1, wherein: twenty-one injection ports (3) are arranged on the cutter head (2), and the three injection ports (3) are uniformly distributed on the cutter head (2) in a group.
4. The cutter head of the subway tunnel shield machine according to claim 1, wherein: eight hob clamping grooves (4) are formed in the cutter head (2), and six single-edge hobs (5) are installed on each hob clamping groove (4) in a staggered mode.
5. The cutter head of the subway tunnel shield machine according to claim 1, wherein: four bolt sockets a (10) are formed in the butt joint port A (11), and eight reverse shell knives (8) and forward shell knives (9) are welded on the outer side of the butt joint port A (11) in a splicing mode.
6. The cutter head of the subway tunnel shield machine according to claim 1, wherein: the alloy wear-resistant disc (13) is of a circular structure, and six large-surface alloy wear-resistant steel plates are arranged inside the alloy wear-resistant disc (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020798618.8U CN212105877U (en) | 2020-05-14 | 2020-05-14 | Cutter head of subway tunnel shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020798618.8U CN212105877U (en) | 2020-05-14 | 2020-05-14 | Cutter head of subway tunnel shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212105877U true CN212105877U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020798618.8U Expired - Fee Related CN212105877U (en) | 2020-05-14 | 2020-05-14 | Cutter head of subway tunnel shield machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN212105877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112664A (en) * | 2020-10-15 | 2020-12-22 | 陕西铁路工程职业技术学院 | Cutter head of shield machine |
-
2020
- 2020-05-14 CN CN202020798618.8U patent/CN212105877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112664A (en) * | 2020-10-15 | 2020-12-22 | 陕西铁路工程职业技术学院 | Cutter head of shield machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201208 Termination date: 20210514 |