CN111894608A - Rectangular shield machine with Leluo triangular auxiliary cutter head - Google Patents
Rectangular shield machine with Leluo triangular auxiliary cutter head Download PDFInfo
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- CN111894608A CN111894608A CN202010783451.2A CN202010783451A CN111894608A CN 111894608 A CN111894608 A CN 111894608A CN 202010783451 A CN202010783451 A CN 202010783451A CN 111894608 A CN111894608 A CN 111894608A
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- 238000005520 cutting process Methods 0.000 claims abstract description 37
- 230000005641 tunneling Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000036346 tooth eruption Effects 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 2
- 229920000433 Lyocell Polymers 0.000 claims 6
- 239000003245 coal Substances 0.000 description 14
- 238000005065 mining Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a rectangular shield tunneling machine with a Lelo triangular auxiliary cutter head, which comprises a shield shell, a supporting disk, a main cutter head, four auxiliary cutter heads and a driving device, wherein the main cutter head is arranged on the shield shell; the shield shell is hollow, a supporting disc is arranged at the front end of the shield shell, a main cutter head is arranged at the central position of the supporting disc, and a driving device is arranged in the shield shell; the four auxiliary cutter heads are respectively positioned at four positions of the left upper part, the left lower part, the right upper part and the right lower part of the main cutter head, and the main cutter head shaft and the auxiliary cutter head shaft are connected through a gear transmission device; the sections of the auxiliary cutter head and the rotor are all in a Lelo triangle; according to the invention, the four auxiliary cutter heads are arranged around the main cutter head, the auxiliary cutter heads and the rotor are of a Leiluo triangular structure, the cut rectangular cutting surface has an ideal rectangular shape, the cutting omission area is small, and on the premise of reasonably distributing the relative sizes and spatial positions of the main cutter head and the four auxiliary cutter heads, the length-width ratio of the cut rectangular cutting surface is large, so that the space utilization rate of the section of the shield machine can be further improved, and the working efficiency is effectively improved.
Description
Technical Field
The invention relates to a rectangular shield machine, in particular to a rectangular shield machine with a Lelo triangular auxiliary cutter head.
Background
In recent years, in order to alleviate the problem of urban traffic jam, the subway construction project is vigorously developed in China, and with the continuous development of the subway project, the subway construction project gradually becomes an important mark for measuring modern urban construction. However, with the continuous advance of the urbanization process, the problem of land resource shortage is more and more serious, so that the subway construction space is continuously compressed, the difficult conditions of large depth, multiple intersection and the like are continuously generated in the construction process, the shield construction requirements of the subway tunnel are higher and higher due to the various complex conditions, and the further development and progress of the shield technology can be promoted.
In the field of coal mining, although the proportion of coal in energy consumption is reduced as a basic energy source in China, the coal is still in the leading position of energy consumption in the next decades, the foundation of the coal industry in China is weak, coal mining mainly takes well work as the main part, the mining amount of an opencast coal mine is less than 10% of the total amount of the coal, and the mining efficiency of coal mine resources in the well work needs to be improved urgently. However, at present, underground coal is mined by combining various machines such as a heading machine, a coal mining machine, a scraper conveyor and the like, the arrangement of mining roadways is complicated, the working efficiency is low, and the automation degree needs to be improved.
The shield machine has the advantages of safety, environmental protection, no pollution, high construction speed and the like, integrates light, mechanical, electrical, hydraulic, sensing and information technologies, can realize automatic operation in the whole processes of shield advancing, coal mining, measurement guiding and deviation rectifying, slag coal filling and the like, has low construction labor intensity, can carry out 'body-measuring tailoring' type design and manufacture according to different geology, has extremely high reliability requirement, can even realize the in-situ, real-time and integrated development of coal resources, and realizes the 'no coal on ground and no people under the ground' environment-friendly mining target.
The rectangular shield machine is compared traditional circular shield machine and can effectively promote shield machine section space utilization, solves the many and miscellaneous problem of equipment that mining tunnel arranged, and then effectively improves work efficiency, and the rectangular shield machine can promote area of contact with the external world simultaneously, increases supporting mechanism's the figure of arranging, when the during operation rock stratum is difficult to the breakage, can provide sufficient holding power.
The existing rectangular shield machine cutter head distribution structure is difficult to cut into an ideal rectangular shape, the overall shape is elliptical, the length-width ratio of the cut similar rectangle is small, the cutting efficiency of the position of the opposite side corner is low, and the arrangement of an external supporting mechanism can be influenced to a certain extent due to the irregular shape of the overall shape. For example, the search finds: chinese patent CN 203905954U discloses an oversized rectangular section shield push bench, although this rectangular section area is great, adopts six cutterheads to cut, and the shape of the cutting face is very unsatisfactory, and the area is omitted with total rectangular section to the cutterhead and the blade disc overlap area is all great, leads to the efficiency lower. The drum-type rectangular shield machine disclosed in chinese patent CN 204804853U has the disadvantages of relatively ideal cutting surface shape, complex transmission of the cutter head structure, low efficiency, small cutting force, low tunneling speed, high requirement on geological conditions, and the like. Therefore, the designed rectangular shield machine which can cut a relatively ideal shield machine with a large length-width ratio has important significance for improving the space utilization rate of the section and the working efficiency.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the rectangular shield machine with the Lelo triangular auxiliary cutter head, the length-width ratio of the cut rectangular shape is large, and the space utilization rate of the cross section of the shield machine can be further improved.
In order to achieve the purpose, the invention adopts the technical scheme that: a rectangular shield machine with a Lelo triangular auxiliary cutter head comprises a shield shell, a supporting disk, a main cutter head, four auxiliary cutter heads and a driving device;
the shield shell is hollow, a supporting disc is arranged at the front end of the shield shell, a main cutter disc is arranged at the central position of the supporting disc, a main cutter disc shaft is arranged at the central position of the rear end of the main cutter disc, the main cutter disc shaft penetrates through the supporting disc to be connected with a driving device, and the driving device is arranged in the shield shell;
four auxiliary cutter heads are respectively positioned at four positions of the left upper part, the left lower part, the right upper part and the right lower part of the main cutter head, a rotor is arranged at the rear end of each auxiliary cutter head, a hole is formed in the center of the rotor, an auxiliary cutter head shaft is arranged in the hole, the auxiliary cutter head shaft is a two-section stepped eccentric shaft, the diameter of the front section part of the auxiliary cutter head shaft is larger than that of the rear section part, the front section part of the auxiliary cutter head shaft is in interference fit with the hole formed in the rotor, an internal gear is arranged at the rear end of the hole, a similar rectangular hole is formed in the supporting disk, the rotor is embedded into, the rear end face of the supporting plate is connected with a fixed gear, a front convex hole for the rear section part of the auxiliary cutter shaft to penetrate through is formed in the center of the fixed gear, an external gear is arranged on the outer side of the front convex part of the front convex hole and is meshed with the internal gear, gear transmission devices are arranged on the main cutter shaft and the auxiliary cutter shaft which are positioned in the shield shell, and the main cutter shaft and the auxiliary cutter shaft are connected through the gear transmission devices; the sections of the auxiliary cutter head and the rotor are all in a Lelo triangle; the distance between the main cutter head and the supporting disk is greater than that between the auxiliary cutter head and the supporting disk, and a feeding hole is formed in the supporting disk.
Furthermore, the axis of the auxiliary cutter head, the axis of the rotor and the axis of the eccentric shaft at the front end of the auxiliary cutter head shaft are overlapped.
Furthermore, the axes of the main cutter head and the four auxiliary cutter heads are parallel to each other.
Furthermore, the main cutter disc is provided with a cutter, an over-digging cutter and a center cutter, the cutter is divided into a plurality of layers from inside to outside, the cutters on adjacent layers are arranged at intervals in a crossed manner, the over-digging cutter is arranged at the edge of the main cutter disc, and the center cutter is arranged at the circle center of the main cutter disc.
Furthermore, the number of the super-digging cutters is four, and the four super-digging cutters are arranged at the edge of the main cutter head at intervals.
Furthermore, the surface of the auxiliary cutter head is provided with a cutting head and cutting teeth, the cutting head is positioned at the center of the auxiliary cutter head, the outline of the cutting head is in a spherical cone shape, the cutting teeth are distributed on the cutting head in a spiral line mode, and the front end face of the auxiliary cutter head is provided with the cutting teeth.
Furthermore, magnetic liquid is adopted for sealing among the main cutter head shaft, the auxiliary cutter head shaft and the supporting disc.
Further, a labyrinth seal is arranged between the rotor and the support disc.
Furthermore, the main cutter disc is provided with a digging groove, and digging groove teeth are arranged on the digging groove.
Compared with the prior art, the four auxiliary cutter heads are arranged around the main cutter head, the auxiliary cutter heads and the rotor are of a Leiluo triangular structure, the cut rectangular section is ideal in rectangular shape, the cutting omission area is small, and on the premise that the relative sizes and the space positions of the main cutter head and the four auxiliary cutter heads are reasonably distributed, the length-width ratio of the cut rectangular cutting surface is large, the space utilization rate of the section of the shield tunneling machine can be further improved, and the working efficiency is effectively improved.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of a support tray according to the present invention;
FIG. 4 is a schematic structural view of an auxiliary cutter head in the invention;
FIG. 5 is a schematic view of section A-A of FIG. 4;
in the figure: 1. cutting teeth, 2, cutting heads, 3, cutters, 4, grooving, 5, auxiliary cutter heads, 6, grooving teeth, 7, super-grooving cutters, 8, central cutters, 9, main cutter heads, 10, main cutter head shafts, 11, supporting disks, 12, fixed cutter heads, 12-1, external gears, 13, auxiliary cutter head shafts, 14, feed inlets, 15, feed devices, 16, driving devices, 17, rotors, 17-1, internal gears, 18, bolts, 19, labyrinth seals, 20, similar rectangular holes, 21, auxiliary cutter head cutting profile surfaces, 22, gear transmission devices, 23 and shield casings.
Detailed Description
The invention will be further explained with reference to the drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the present invention includes a shield shell 23, a support disc 11, a main cutter disc 9, four auxiliary cutter discs 5 and a driving device 16; the shield shell 23 is hollow, a support disc 11 is arranged at the front end of the shield shell 23, a main cutter disc 9 is arranged at the central position of the support disc 11, a main cutter disc shaft 10 is arranged at the central position of the rear end of the main cutter disc 9, the main cutter disc shaft 10 penetrates through the support disc 11 to be connected with a driving device 16, and the driving device 16 is arranged in the shield shell 23;
four auxiliary cutterheads 5 are respectively positioned at four positions of the upper left, the lower left, the upper right and the lower right of a main cutterhead 9, as shown in figures 4 and 5, the rear end of each auxiliary cutterhead 5 is provided with a rotor 17, the center of each rotor 17 is provided with a hole, an auxiliary cutterhead shaft 13 is arranged in each hole, each auxiliary cutterhead shaft 13 is a two-section stepped eccentric shaft, the diameter of the front section of each auxiliary cutterhead shaft 13 is larger than that of the rear section of each auxiliary cutterhead shaft, the front section of each auxiliary cutterhead shaft 13 is in interference fit with the hole formed in each rotor 17, the rear end of each hole is provided with an internal gear 17-1, as shown in figure 3, each supporting plate 11 is provided with a similar rectangular hole 20, each rotor 17 is embedded into the similar rectangular hole 20 from the front end surface of each supporting plate 11, the rear end surface of each supporting plate 11 is connected with a fixed cutterhead 12, the center of each fixed cutterhead 12 is provided with a front convex hole, the parts of the main cutter shaft 10 and the auxiliary cutter shaft 13, which are positioned in the shield shell 23, are provided with gear transmission devices 22, and the main cutter shaft 10 and the auxiliary cutter shaft 13 are connected through the gear transmission devices 22; the axes of the main cutter head 9 and the four auxiliary cutter heads 5 are parallel to each other, so that the rotary power of the main cutter head 9 can be stably transmitted to the auxiliary cutter heads 5 through the gear transmission device 22; the sections of the auxiliary cutter head 5 and the rotor 17 are all in a Lelo triangle; the distance between the main cutter head 9 and the supporting disk 11 is greater than the distance between the auxiliary cutter head 5 and the supporting disk 11, and a feeding hole 14 is formed in the supporting disk 11.
As shown in fig. 1, a cutter 3, a super-digger 7 and a center cutter 8 are arranged on a main cutter disc 9, the cutter 3 is divided into a plurality of layers from inside to outside, the cutters 3 on adjacent layers are arranged at intervals in a crossed manner, the super-digger 7 is arranged at the edge of the main cutter disc 9, the center cutter 8 is arranged at the circle center of the main cutter disc 9, and the purpose of crushing and cutting the working surface of the main cutter disc 9 can be achieved after the cutters 3, the super-digger 7 and the center cutter 8 cut the working surface; furthermore, the number of the super-digging cutters 7 is four, the four super-digging cutters 7 are arranged at the edge of the main cutter disc 9 at intervals, the super-digging cutters 7 can extend out and retract in the radial direction to cut edge materials, the diameter of the working face of the main cutter disc 9 is adjusted, and certain flexibility is increased.
As shown in fig. 1, the surface of the auxiliary cutter head 5 is provided with a cutting head 2 and cutting teeth 1, the cutting head 2 is located at the center of the auxiliary cutter head 5, the outline of the cutting head 2 is spherical cone-shaped, the cutting teeth 1 are distributed on the cutting head 2 in a spiral line mode, the number of the spiral line heads is generally 2-3, the cutting teeth 1 are arranged on the front end face of the auxiliary cutter head 5, and the purpose of crushing the working face of the auxiliary cutter head is achieved through the rotation of the spherical cone-shaped cutting head 2 and the cutting teeth 1.
The main cutter head 9 is provided with a digging groove 4, the digging groove 4 is provided with digging groove teeth 6, the materials fall to the bottom after being crushed by a cutter on the main cutter head 9, and the materials are sent into the shield machine through the digging groove 4 with the digging groove teeth 6 so as to be conveyed and transmitted.
The specific working process of the invention is as follows:
and (3) tunneling process: the main cutter head 9 is provided with rotary power by a driving device 16, the main cutter head 9 contacts a working surface before the auxiliary cutter head 5, cutters such as a cutter 3, an over-digging cutter 7 and a center cutter 8 are arranged on the main cutter head 9 to crush materials, the materials are conveyed into the shield machine from the digging groove 4 after falling, and the digging groove teeth 6 can collect the crushed materials into the digging groove 4 to the maximum extent; the surface of the auxiliary cutter head 5 is provided with a cutting head 2 and cutting teeth 1, the cutting head 2 is positioned at the central position of the auxiliary cutter head 5, the outline of the cutting head 2 is spherical conical, the cutting teeth 1 are distributed on the cutting head 2 according to a spiral line mode, the central cutting head 2 is in front of the auxiliary cutter head 5 and contacts with a working surface, materials fall into the shield machine from the feed inlet 14, and the materials are pushed to a follow-up conveying device by the feeding device 15 after entering the inside of the shield machine.
The working process of the auxiliary cutter head is as follows: four auxiliary cutter heads 5 are respectively positioned at four positions of the left upper part, the left lower part, the right upper part and the right lower part of the main cutter head 9, the rotary power of the main cutter head 9 is transmitted to an auxiliary cutter head shaft 13 through a gear transmission device 22, a rotor 17 is arranged at the rear end of the auxiliary cutter head 5, a hole is formed in the center of the rotor 17, the auxiliary cutter head shaft 13 is arranged in the hole, the front section part of the auxiliary cutter head shaft 13 is in interference fit with the hole formed in the rotor 17, and an internal gear 17-1 is arranged at the rear end of the hole, so that the rotary power of the auxiliary cutter head shaft 13 can be transmitted to the rotor 17 and further can be transmitted to the auxiliary cutter head 5 which is. A similar rectangular hole 20 is formed in a supporting plate 11, the rear end face of the supporting plate 11 is connected with a fixed gear 12, a front convex hole for the rear section of an auxiliary cutter shaft 13 to penetrate through is formed in the center of the fixed gear 12, an external gear 12-1 is arranged on the outer side of the front convex part of the front convex hole, and the external gear 12-1 is meshed with an internal gear 17-1.
As shown in fig. 3 and 5, both the auxiliary cutterhead 5 and the rotor 17 adopt a lelo triangle structure, according to the characteristics of the lelo triangle, when the rotor 17 rotates around the external gear 12-1 of the fixed cutterhead 12 in the similar rectangular hole 20, the rotor 17 can be in close contact with the boundary of the similar rectangular hole 20, and because the axes of the auxiliary cutterhead 5 and the rotor 17 are coincident and have similar shapes, the cutting profile 21 of the auxiliary cutterhead 5 is in a similar rectangular shape. Compared with the circular cutting surface cut by the traditional circular cutter head, the quasi-rectangular profile surface cut by the invention has larger length-width ratio and more ideal rectangular shape. When the auxiliary cutter head 5 and the main cutter head 9 are matched for cutting, the total rectangular cutting surface for cutting also has a larger length-width ratio and a more ideal rectangular cutting surface, the cutting omission area is smaller, the space utilization rate of the section of the shield tunneling machine can be further improved, and the working efficiency is effectively improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (9)
1. A rectangular shield tunneling machine with a Lelo triangular auxiliary cutterhead is characterized by comprising a shield shell (23), a supporting disc (11), a main cutterhead (9), four auxiliary cutterheads (5) and a driving device (16);
the shield shell (23) is hollow, a support disc (11) is arranged at the front end of the shield shell (23), a main cutter disc (9) is arranged at the central position of the support disc (11), a main cutter disc shaft (10) is arranged at the central position of the rear end of the main cutter disc (9), the main cutter disc shaft (10) penetrates through the support disc (11) to be connected with a driving device (16), and the driving device (16) is arranged inside the shield shell (23);
four auxiliary cutter heads (5) are respectively positioned at four positions of the upper left, the lower left, the upper right and the lower right of a main cutter head (9), a rotor (17) is arranged at the rear end of each auxiliary cutter head (5), a hole is formed in the center of each rotor (17), an auxiliary cutter head shaft (13) is arranged in each hole, each auxiliary cutter head shaft (13) is a two-section stepped eccentric shaft, the diameter of the front section of each auxiliary cutter head shaft (13) is larger than that of the rear section of each auxiliary cutter head shaft, the front section of each auxiliary cutter head shaft (13) is in interference fit with the hole formed in each rotor (17), an inner gear (17-1) is arranged at the rear end of each hole, a similar rectangular hole (20) is formed in a supporting plate (11), each rotor (17) is embedded into the similar rectangular hole (20) from the front end face of the supporting plate (11), the rear end face of the supporting plate (11) is connected with a fixed gear (12), a front convex hole for the rear section, an external gear (12-1) is arranged on the outer side of a front convex part of the front convex hole, the external gear (12-1) is meshed with an internal gear (17-1), gear transmission devices (22) are arranged on parts, located inside a shield shell (23), of a main cutter head shaft (10) and an auxiliary cutter head shaft (13), and the main cutter head shaft (10) and the auxiliary cutter head shaft (13) are connected through the gear transmission devices (22);
the sections of the auxiliary cutter head (5) and the rotor (17) are all in a Lelo triangle; the distance between the main cutter head (9) and the supporting disk (11) is greater than the distance between the auxiliary cutter head (5) and the supporting disk (11), and a feeding hole (14) is formed in the supporting disk (11).
2. The rectangular shield tunneling machine with a lyocell triangular auxiliary cutterhead according to claim 1, characterized in that the axis of the auxiliary cutterhead (5), the axis of the rotor (17), and the axis of the eccentric shaft at the front end of the auxiliary cutterhead shaft (13) coincide.
3. The rectangular shield tunneling machine with a lyocell triangular auxiliary cutterhead according to claim 1, characterized in that the axes of the main cutterhead (9) and the four auxiliary cutterheads (5) are parallel to each other.
4. The rectangular shield tunneling machine with the Lelo triangular auxiliary cutterhead according to claim 1, wherein the main cutterhead (9) is provided with cutters (3), super-diggers (7) and a central cutter (8), the cutters (3) are divided into a plurality of layers from inside to outside, the cutters (3) on adjacent layers are arranged in a crossed mode at intervals, the super-diggers (7) are arranged on the edge of the main cutterhead (9), and the central cutter (8) is arranged at the center of the main cutterhead (9).
5. The rectangular shield tunneling machine with a lyocell triangular auxiliary cutterhead according to claim 4, characterized in that there are four super-diggers (7), and the four super-diggers (7) are arranged at the edge of the main cutterhead (9) at regular intervals.
6. The rectangular shield tunneling machine with the Leiluo triangular auxiliary cutterhead according to claim 1, wherein the auxiliary cutterhead (5) is provided with cutting heads (2) and cutting teeth (1) on the surface, the cutting heads (2) are located at the center of the auxiliary cutterhead (5), the outline of the cutting heads (2) is in a spherical cone shape, the cutting teeth (1) are distributed on the cutting heads (2) in a spiral line manner, and the cutting teeth (1) are arranged on the front end surface of the auxiliary cutterhead (5).
7. The rectangular shield tunneling machine with a lyocell triangular auxiliary cutterhead according to claim 1, characterized in that magnetic liquid seals are used between the main cutterhead shaft (10), the auxiliary cutterhead shaft (13) and the supporting disc (11).
8. The rectangular shield tunneling machine with a lyocell triangular countercutter according to claim 1, characterized in that a labyrinth (19) is provided between the rotor (17) and the support disk (11).
9. The rectangular shield tunneling machine with the lyocell triangular auxiliary cutterhead according to claim 1, wherein the main cutterhead (9) is provided with digging grooves (4), and the digging grooves (4) are provided with digging groove teeth (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010783451.2A CN111894608B (en) | 2020-08-06 | 2020-08-06 | Rectangular shield machine with Leluo triangular auxiliary cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010783451.2A CN111894608B (en) | 2020-08-06 | 2020-08-06 | Rectangular shield machine with Leluo triangular auxiliary cutter head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111894608A true CN111894608A (en) | 2020-11-06 |
| CN111894608B CN111894608B (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010783451.2A Active CN111894608B (en) | 2020-08-06 | 2020-08-06 | Rectangular shield machine with Leluo triangular auxiliary cutter head |
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| CN113073986A (en) * | 2021-04-07 | 2021-07-06 | 中铁工程装备集团有限公司 | TBM (Tunnel boring machine) and method suitable for pumped storage power station |
| CN113216993A (en) * | 2021-04-26 | 2021-08-06 | 中国建筑股份有限公司 | Shield tunneling machine cutter head and shield tunneling machine |
| CN113217089A (en) * | 2021-06-27 | 2021-08-06 | 中国矿业大学 | Autonomous traveling mechanism of deep coal fluidized mining equipment |
| CN113356867A (en) * | 2021-04-26 | 2021-09-07 | 中国建筑股份有限公司 | Shield constructs quick-witted blade disc, is used for hobbing cutter and shield structure machine on shield structure machine blade disc |
| CN114033403A (en) * | 2021-11-30 | 2022-02-11 | 中国矿业大学 | Full-section rectangular rapid tunneling machine with Lelo triangular cutter head driven by planet wheels |
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