CN111980719A - TBM cutter head and TBM - Google Patents
TBM cutter head and TBM Download PDFInfo
- Publication number
- CN111980719A CN111980719A CN202011066165.0A CN202011066165A CN111980719A CN 111980719 A CN111980719 A CN 111980719A CN 202011066165 A CN202011066165 A CN 202011066165A CN 111980719 A CN111980719 A CN 111980719A
- Authority
- CN
- China
- Prior art keywords
- slag
- cutter head
- tbm
- conical surface
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002893 slag Substances 0.000 claims abstract description 99
- 210000001503 joint Anatomy 0.000 claims abstract 3
- 239000013049 sediment Substances 0.000 claims description 9
- 239000003818 cinder Substances 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 239000002689 soil Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- E21D9/02—Driving inclined tunnels or galleries
-
- 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
Landscapes
- 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)
- Earth Drilling (AREA)
Abstract
The invention discloses a TBM cutter head and a TBM. The TBM cutter head comprises a cutter head body, the cutter head body comprises a panel and a back plate which is in butt joint with the back side of the panel in the axial direction, the panel is sequentially a central area from the center to the edge, the back plate surrounds a conical surface area on the periphery of the central area and a ring surface area on the periphery of the conical surface area, the conical surface area is inclined towards the rear in the axial direction outwards and gradually by a connecting wire with the central area, the ring surface area is a ring surface, a slag chute and a slag receiving hopper are arranged in the cutter head body, one end of the slag chute is in butt joint with the conical surface area, the other end of the slag chute extends towards an inlet of the slag receiving hopper, the slag chute and the conical surface area form an opening angle, the opening of the slag chute faces towards the central shaft of the cutter head body, a slag. When the slag scraper is applied to the driving of an inclined shaft by a positive shaft method, the slag can fall into the slag receiving hopper by utilizing the dead weight, the slag is convenient to discharge, the slag slide plate is connected to the conical surface area, and the sliding time of the slag on the slag slide plate can be reduced.
Description
Technical Field
The invention relates to the technical field of tunneling equipment, in particular to a TBM cutter head and a TBM.
Background
In the existing inclined shaft tunneling, a typical method is to adopt a positive shaft method for construction, so that the construction safety is high, the cost can be saved, and the construction period can be shortened. But carry out inclined shaft tunnel excavation with present common blade disc, because the degree of difficulty of slagging tap is big, can not satisfy the requirement to the inclined shaft tunnel in fields such as present colliery, hydraulic engineering.
Therefore, how to facilitate the slag tapping of the cutter head is a technical problem which needs to be solved by the technical personnel in the field at present.
Disclosure of Invention
In view of the above, the invention aims to provide a TBM cutter head which is convenient for slag tapping when being applied to a vertical shaft method for driving out an inclined shaft. It is a further object of the present invention to provide a TBM including a TBM cutterhead as described above which facilitates tapping when used in a straight method for driving out an inclined shaft.
In order to achieve the purpose, the invention provides the following technical scheme:
a TBM cutter head comprises a cutter head body, wherein the cutter head body comprises a panel and a back plate butted with the back side of the panel in the axial direction, the panel is composed of a central area, a conical surface area surrounding the periphery of the central area and a ring surface area surrounding the periphery of the conical surface area in sequence from the center to the edge, the conical surface area is gradually inclined towards the rear in the axial direction from the connecting line with the central area to the outside, the ring surface area is a ring surface coaxial with the cutter head body, a slag slide plate and a slag receiving hopper are arranged in the cutter head body, one end of the slag chute is butted with the conical surface area, the other end of the slag chute extends towards the inlet of the slag receiving hopper, the slag chute and the conical surface area form an opening angle, the opening of the slag chute faces to the central shaft of the cutter head body, and a slag inlet is formed in the outer side of the connecting line of the slag chute on the panel, and a bucket is correspondingly arranged on the slag inlet.
Preferably, the slag inlet is formed in each of the conical surface area and the annular surface area.
Preferably, the plurality of slag inlets are linearly and sequentially arranged from the connecting line of the face plate and the slag chute to the connecting line of the face plate and the back plate to form a slag inlet group; at least two slag inlet groups are sequentially arranged on the panel along the circumferential direction.
Preferably, the central region is a plane perpendicular to a central axis of the cutter head.
Preferably, the conical surface region is a conical surface, a spherical surface or a pyramidal surface region.
Preferably, one end of the slag chute, which is far away from the panel, is connected with the slag receiving hopper.
Preferably, the central region, the conical surface region and the annular surface region are provided with a hob assembly.
Preferably, a connecting line of the slag chute and the conical surface area is positioned in the middle of the conical surface area.
Preferably, the included angle between the slag chute and the central axis of the cutter head body ranges from 70 degrees to 75 degrees.
A TBM comprises the TBM cutter head.
The TBM cutter head comprises a cutter head body, wherein the cutter head body comprises a panel and a back plate butted with the back side of the panel in the axial direction, the panel is sequentially provided with a central area, a conical surface area surrounding the periphery of the central area and a ring surface area surrounding the periphery of the conical surface area from the center to the edge, the conical surface area is gradually inclined towards the rear in the axial direction from a connecting line with the central area, the ring surface area is a ring surface coaxial with the cutter head body, a slag slide and a slag receiving hopper are arranged in the cutter head body, one end of the slag slide is butted with the conical surface area, the other end of the slag slide extends towards an inlet of the slag receiving hopper, the slag slide and the conical surface area form an opening angle, the opening faces towards the central axis of the cutter head body, a slag inlet is formed in the outer side of the connecting line with the slag slide on the panel.
The scraper bowl is located and is close to marginal zone on the panel, can be with in the cutter head body is shoveled into to the dregs of a river bottom, when being applied to the well method and drivage out the inclined shaft, because the setting of swift current cinder slab, make dregs of a river can utilize the dead weight to fall into and connect the sediment fill, be convenient for slag, in addition, because the swift current cinder slab is connected on the conical surface region of slope, compare in the plane of connecting at perpendicular to cutter head body center pin, can shorten the length that the swift current cinder slab need set up, correspondingly reduce the gliding time of dregs of a river on the swift current cinder slab, guarantee that dregs of a river are very fast at the cutter head rotational speed, also can get into and connect the sediment fill under the long shorter condition of time of sediment fill top, and can improve.
The TBM comprising the TBM cutterhead provided by the invention is convenient for deslagging when being applied to driving out an inclined shaft by a positive shaft method.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a front view of a cutter head provided by the present invention;
FIG. 2 is a schematic structural diagram of a cutter head provided by the invention during construction of an inclined shaft;
FIG. 3 is a schematic view illustrating the flow of the residue soil after the scraper blade is used for shoveling the soil in the cutter head according to the present invention;
FIG. 4 is a comparison of the pan with the pan of this example, with the pan being flat, and the dashed lines indicate the difference between the pan and the pan of this example.
Reference numerals:
the cutter head body 1, the flange structure 11, the flange back plate 12, the rear conical plate 13, the annular plate 14, the face plate 15, the back plate main body 16, the supporting rib plate 17, the central area 18, the conical area 19 and the annular area 110;
a hob assembly 2;
the bucket 3, a slag chute 31 and a slag receiving hopper 32;
the dip angle A of the slag chute and the horizontal plane and the central axis B of the cutter head body.
Detailed Description
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.
The core of the invention is to provide a TBM cutter head which is convenient for slag tapping when being applied to a main shaft method for driving out an inclined shaft. Another core of the invention is to provide a TBM comprising the above-described TBM cutterhead for facilitating tapping when used in a straight method for driving out an inclined shaft.
It will be understood that when an element is referred to as being "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In an embodiment of the TBM cutter head provided by the present invention, please refer to fig. 1 to 3, which include a cutter head body 1, where the cutter head body 1 includes a face plate 15 and a back plate abutting against the back side of the face plate 15 in the axial direction. The panel 15 comprises a central area 18, a conical area 19 surrounding the periphery of the central area 18, and a toroidal area 110 surrounding the periphery of the conical area 19, wherein the conical area 19 and the toroidal area 110 are both annular structures.
As shown in fig. 2, the tapered surface region 19 is gradually inclined radially outward toward the rear in the axial direction from a line connecting with the central region 18. Specifically, the tapered surface region 19 is a conical surface, that is, the tapered surface region 19 is a part of an annular region on one conical surface, and the cutter head body 1 has a conical structure as a whole. Of course, in other embodiments, the tapered surface region 19 may also be a spherical surface, i.e., the tapered surface region 19 is formed by a part of a ring-shaped region on a spherical surface; alternatively, the conical surface region 19 can also be a pyramidal surface region 19, i.e. the conical surface region 19 can be realized by a combination of several flat surfaces. As shown in fig. 2, the torus region 110 is a torus coaxial with the cutter head 1, and the torus region 110 may be specifically regarded as an outer peripheral surface of the cutter head 1.
Wherein, optionally, the backplate includes flange structure 11, flange backplate 12, back taper plate 13, ring board 14 and backplate main part 16, and panel 15 and ring board 14, back taper plate 13, flange backplate 12 dock in proper order along the axial from front to back and form conical overall structure, and this structure is cavity box structure, can conveniently maintain and change the cutter when guaranteeing structural strength. The flange back plate 12 is an annular plate, a flange structure 11 is fixed in the middle of the flange back plate, a back plate main body 16 is arranged inside the cutter head body 1, the back plate main body 16 can be specifically connected to the inner side of the slag chute 31, and in addition, a supporting rib plate 17 is arranged in the cutter head body 1. In the TBM, a flange structure 11 is connected with a main driving device through bolts, and the main driving device provides thrust and torque required by a cutter head for rock breaking. The flange structure 11, the flange back plate 12, the rear cone plate 13, the circular ring plate 14, the face plate 15, the back plate main body 16, the support rib plate 17 and other parts are assembled by welding.
A slag chute 31 and a slag receiving hopper 32 are arranged in the cutter head body 1. One end of the slag chute 31 is butted against the conical surface area 19 and the other end extends towards the inlet of the slag receiving hopper 32. Specifically, the slag chute 31 is an annular plate arranged around the central axis of the cutter head body 1, and the slag receiving hopper 32 is arranged at the central position of the slag chute 31. Preferably, one end of the slag chute 31 far away from the panel 15 extends to the slag receiving hopper 32, and the slag receiving hopper 32 is directly connected with the slag chute 31 to ensure that the slag soil can accurately enter the slag receiving hopper 32. The slag chute 31 forms an opening angle with the tapered surface region 19 and the opening of the opening angle faces the central axis of the cutter head body 1. A slag inlet is arranged on the outer side of the connecting line of the panel 15 and the slag slide plate 31, and a bucket 3 is correspondingly arranged on the slag inlet. Wherein, optionally, the scraper bowl 3 includes scraper knife and scraper knife blade holder and scraper knife retaining member, and the scraper knife blade holder welds in the corresponding scraper knife blade holder hole in the cutter head body 1, and the scraper knife is installed on the scraper knife blade holder, and is fixed through the scraper knife retaining member. Wherein, the direction of the scraper knife can be set by combining the rotating direction of the cutter head body 1.
Wherein, the included angle range of the slag chute 31 and the central axis of the cutter head body 1 is 70-75 degrees, so that the angle between the slag chute 31 and the horizontal plane is equal to or more than 35-40 degrees (the repose angle of rock slag) as much as possible in the tunneling of the inclined shaft tunnel with the inclination angle within the range of 35 degrees. Of course, in actual construction, the cutter head should be selected according to the actual processing environment, and specifically, the slag soil should be ensured to slide up and down in the slag receiving hopper 32 on the slag chute 31.
In the process of excavating the inclined shaft by the positive shaft method, after rock strata on the tunnel face is crushed, residual slag soil on the tunnel face is collected into the cutter head body 1 through the slag inlet by the bucket 3, and when the slag soil rotates to the upper part of the slag slide plate 31, the slag soil freely slides down along the slag slide plate 31 to the slag receiving hopper 32, and then is transported out of the hole by the slag soil transporting device.
In this embodiment, the scraper bowl 3 is located and is close to marginal zone on the panel 15, can shovel the dregs of the earth of tunnel bottom into cutter head body 1, when being applied to the well method and tunnelling out the inclined shaft, because the setting of swift current slag runner 31, make the dregs of the earth can utilize the dead weight to fall into receiving the sediment fill 32, be convenient for slag tap, in addition, because swift current slag runner 31 is connected on the regional 19 of the conical surface of slope, as shown in fig. 4, compare in the plane of connecting perpendicular to cutter head body 1 center pin, can shorten the length that swift current slag runner 31 needs to set up, correspondingly reduce the gliding time of dregs of the earth on swift current slag runner 31, guarantee that the dregs of the earth is very fast at the blade disc rotational speed, the dregs of the earth of receiving also can get.
Furthermore, the slag inlets are formed in both the conical surface area 19 and the annular surface area 110, so that the slag inlet efficiency can be effectively improved compared with the case that only one of the two areas is provided with the slag inlet.
Further, a plurality of slag inlet is arranged in proper order by panel 15 and the connecting line of swift current sediment board 31 to panel 15 and the connecting line of backplate are linear to constitute a slag inlet group, be equipped with two at least slag inlet groups on the panel 15 in proper order along circumference, can improve counter 15 in radial and ascending utilization ratio in circumference, further improve the efficiency of slagging tap.
Further, the central region 18 of the face plate 15 is a plane perpendicular to the central axis of the cutter head 1, facilitating the setting of the cutter and the machining of the face plate 15.
Further, the central region 18, the conical surface region 19 and the annular surface region 110 are provided with the roller cutter assemblies 2, and rock formations on the tunnel surface are crushed by the roller cutter assemblies 2. The hob assembly 2 is distributed all over the panel 15, so that the construction efficiency can be guaranteed. Wherein, the cutter on the cutter head body 1 can be a front-mounted cutter or a welded cutter. Specifically, hobbing cutter subassembly 2 includes hobbing cutter and hobbing cutter blade holder and hobbing cutter retaining member, and the hobbing cutter blade holder welds in the hobbing cutter blade holder downthehole of the correspondence of cutter head body 1, and the hobbing cutter is installed on the hobbing cutter blade holder, and is fixed through the hobbing cutter retaining member.
Further, the connecting line of the slag chute 31 and the conical surface region 19 is located in the middle of the conical surface region 19 so as to provide enough installation space for other cutters besides the scraper knife.
In addition to the above TBM cutterhead, the present invention also provides a TBM, which includes a TBM cutterhead, specifically, a TBM cutterhead provided in any of the above embodiments, and the beneficial effects can be referred to the above embodiments accordingly. The TBM can meet the requirement of forward tunneling of the inclined shaft from the ground in the field of inclined shaft engineering, particularly in the water diversion tunnel engineering of a pumped storage power station. For the structure of other parts of the TBM, please refer to the prior art, which is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The TBM cutter head and the TBM provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a TBM blade disc, its characterized in that, includes cutter head body (1), cutter head body (1) including panel (15) with dock in the backplate of panel (15) at the ascending rear side of axial, panel (15) by its heart to the edge be central region (18) in proper order, encircle in central region (18) outlying conical surface region (19) and encircle in conical surface region (19) outlying anchor ring region (110), conical surface region (19) by with the outside rear slope of gradually towards the axial of the connecting wire of central region (18), anchor ring region (110) be with the coaxial toroidal surface of cutter head body (1), be equipped with in cutter head body (1) swift current sediment board (31) and connect sediment fill (32), the one end of swift current sediment board (31) with regional (19) butt joint of conical surface and the other end orientation connect the import of sediment fill (32) to extend, the utility model discloses a scraper pan, including scraper pan body (1), panel (15) and scraper pan (31), the scraper pan regional (19) form opening angle and opening orientation the center pin of cutter head body (1), be located on panel (15) with the outside of the connecting wire of scraper pan (31) has seted up into the cinder notch, it is equipped with scraper bowl (3) to correspond on the cinder notch to advance.
2. The TBM cutter head according to claim 1, wherein the slag inlet is formed in both the conical surface region (19) and the annular surface region (110).
3. The TBM cutter head according to claim 2, wherein a plurality of slag inlets are arranged in a linear sequence from the connecting line of the face plate (15) to the slag chute (31) to the connecting line of the face plate (15) to the back plate to form a slag inlet group; at least two slag inlet groups are sequentially arranged on the panel (15) along the circumferential direction.
4. A TBM cutterhead according to any one of claims 1 to 3, characterized in that the central region (18) is a plane perpendicular to the central axis of the cutterhead body (1).
5. A TBM cutterhead according to any one of claims 1 to 3, wherein the conical surface area (19) is a conical, spherical or pyramidal surface area.
6. A TBM cutterhead according to any one of claims 1 to 3, characterized in that the end of the chute (31) remote from the face plate (15) is connected to the slag receiving hopper (32).
7. A TBM cutterhead according to any one of claims 1 to 3, wherein the central region (18), the conical surface region (19) and the annulus region (110) are provided with a roller cutter assembly (2).
8. A TBM cutterhead according to any one of claims 1 to 3, wherein the line joining the chute plate (31) to the conical surface region (19) is located in the middle of the conical surface region (19).
9. A TBM cutterhead according to any one of claims 1 to 3, characterized in that the included angle of the chute (31) with the central axis of the cutterhead body (1) is in the range 70 ° to 75 °.
10. A TBM including a TBM cutterhead according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066165.0A CN111980719B (en) | 2020-09-30 | 2020-09-30 | TBM cutter head and TBM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066165.0A CN111980719B (en) | 2020-09-30 | 2020-09-30 | TBM cutter head and TBM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111980719A true CN111980719A (en) | 2020-11-24 |
| CN111980719B CN111980719B (en) | 2022-10-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011066165.0A Active CN111980719B (en) | 2020-09-30 | 2020-09-30 | TBM cutter head and TBM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111980719B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02213590A (en) * | 1989-02-15 | 1990-08-24 | Yoshiji Matsumoto | Multi-circle cross section shield drilling machine |
| JPH08109789A (en) * | 1994-10-12 | 1996-04-30 | Hitachi Zosen Corp | Shield machine for underground docking |
| CN204200239U (en) * | 2014-09-19 | 2015-03-11 | 金诚信矿业管理股份有限公司 | A kind of equipment of slagging tap for small section tunnel |
| CN208546171U (en) * | 2018-07-25 | 2019-02-26 | 中铁工程装备集团有限公司 | A kind of detachable TBM cutterhead slag slippage device |
| CN210122909U (en) * | 2019-07-12 | 2020-03-03 | 中国铁建重工集团股份有限公司 | Shaft cutter head |
| CN111636890A (en) * | 2020-06-30 | 2020-09-08 | 中国铁建重工集团股份有限公司 | TBM cutter head structure and TBM |
-
2020
- 2020-09-30 CN CN202011066165.0A patent/CN111980719B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02213590A (en) * | 1989-02-15 | 1990-08-24 | Yoshiji Matsumoto | Multi-circle cross section shield drilling machine |
| JPH08109789A (en) * | 1994-10-12 | 1996-04-30 | Hitachi Zosen Corp | Shield machine for underground docking |
| CN204200239U (en) * | 2014-09-19 | 2015-03-11 | 金诚信矿业管理股份有限公司 | A kind of equipment of slagging tap for small section tunnel |
| CN208546171U (en) * | 2018-07-25 | 2019-02-26 | 中铁工程装备集团有限公司 | A kind of detachable TBM cutterhead slag slippage device |
| CN210122909U (en) * | 2019-07-12 | 2020-03-03 | 中国铁建重工集团股份有限公司 | Shaft cutter head |
| CN111636890A (en) * | 2020-06-30 | 2020-09-08 | 中国铁建重工集团股份有限公司 | TBM cutter head structure and TBM |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111980719B (en) | 2022-10-18 |
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