CN217080462U - Shield cutter head and shield machine - Google Patents
Shield cutter head and shield machine Download PDFInfo
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- CN217080462U CN217080462U CN202220529063.6U CN202220529063U CN217080462U CN 217080462 U CN217080462 U CN 217080462U CN 202220529063 U CN202220529063 U CN 202220529063U CN 217080462 U CN217080462 U CN 217080462U
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Abstract
The utility model relates to a shield constructs quick-witted technical field, concretely relates to shield constructs blade disc and shield constructs machine. The shield cutter head comprises a main beam, the main beam forms a plurality of radial arms on the shield cutter head, each radial arm comprises two main beam arm plates which are arranged at intervals, and a hob is fixed between the two main beam arm plates; an auxiliary beam is arranged between the adjacent radial arms along the circumferential direction of the shield cutter head; one end of the beam branch, which is far away from the axis of the shield cutter head, is fixed on the large circular ring, and the beam branch is provided with a hob; the hobs on the shield cutter head are distributed on each radial arm and each beam branch; each of the secondary beams is formed from a single secondary beam arm panel. The hob with the spoke arms and the beam branches can meet the requirement for the distance between the cutters, so that the rotating tracks of all the hobs cover the whole tunnel face, and the function of arranging the hobs by replacing the auxiliary beam is achieved. The auxiliary beam is not provided with a hob and is a single auxiliary beam arm plate, so that the occupied space is reduced, a larger opening is formed, and the integral opening rate of the shield cutterhead is increased to adapt to the small-diameter shield cutterhead.
Description
Technical Field
The utility model relates to a shield constructs quick-witted technical field, concretely relates to shield constructs arrangement form of cutter on blade disc.
Background
The cutter head is used as one of key parts of the shield machine and mainly used for crushing and stripping rock and soil on the tunnel face along the way and supporting the tunnel face. The tunneling efficiency and the tunneling cost are directly influenced by factors such as the structural form and the opening rate of the cutter head, the combination and arrangement form of the cutters, abrasion detection, muck improvement and the like.
Rock soil on the tunnel face enters the soil bin through the opening of the shield cutter head after being crushed, the opening rate of the cutter head refers to the ratio of the area of the opening part of the cutter head to the area of the cutter head, and the larger the opening rate is, the better the flowability of the muck is. In some complex stratums, the dregs are gathered to form semi-consolidation and consolidation mud cakes, when the opening rate of a cutter head is small, the opening of the cutter head and the gap of a cutter box are easily blocked, the rolling of the cutter is influenced to cause eccentric wear, and the tunneling efficiency is seriously influenced.
A common cutter head structure in the prior art is, for example, a shield cutter head for a composite stratum disclosed in chinese patent document with an authorization publication number of CN102322270B, where the shield cutter head includes a cross-shaped main beam (i.e., a cutter beam in the above patent document), an auxiliary beam (i.e., a wear-resistant composite steel plate in the above patent document) is disposed between every two main beams in the circumferential direction, and cutters are mounted on both the main beam and the auxiliary beam. The cutter includes hobbing cutter and scraper, and the hobbing cutter includes hob seat and hobbing cutter, and the hobbing cutter passes through the hob seat and distributes on girder and auxiliary beam, and the difference of the distribution radius of two radially adjacent hobbing cutters is the sword interval, and the sword interval of the hobbing cutter that needs reasonable design so that the rotation orbit of all hobbing cutters covers whole tunnel face when the cutter arranges. Similarly, the cutter needs to be arranged in a reasonable mode so that the rotation tracks of all the scrapers cover the whole tunnel face.
For another example, a shield cutter head disclosed in chinese patent document CN209369818U has a similar structure. Unlike the shield cutter head disclosed in the patent document No. CN102322270B, the shield cutter head disclosed in this patent document is provided with a double-edged hob. The hob includes single-edged hob and twoedged hob, the difference of single-edged hob and twoedged hob lies in the hob seat in the installation the hob cutter is different, the arrangement of single-edged hob and twoedged hob depends on the size of cutter head space and sword interval, when the cutter head space is enough, the preferential installation of single-edged hob.
Usually, the radial arms are formed on the cutter head by the main beam, the radial tail ends of the cutter head are provided with large circular rings, the radial tail ends of all the radial arms are fixed on the large circular rings, each radial arm comprises two main beam arm plates which are parallel to each other and arranged at intervals, and a hob seat for mounting a hob cutter is fixed between the two main beam arm plates.
On the cutterhead with large diameter, because the hobs are generally standard size and the area of the cutterhead is large, the structure of the cutterhead and the arrangement form of the cutters can ensure the aperture opening ratio of the cutterhead with large diameter, so that the cutterhead can normally work in complex strata. However, for a small-diameter cutter head, the main beam and the auxiliary beam fixed with the hob occupy larger areas, the integral opening rate of the cutter head is limited, generally not more than 35%, the risk of mud cake formation is more severe, the slag discharge efficiency is influenced, and the large-diameter cutter head is particularly obvious on a small-diameter cutter head with the diameter of less than 5 m.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shield constructs blade disc to blade disc structure and cutter arrangement form among the solution prior art make the aperture opening ratio of minor diameter blade disc less and influence the technical problem who arranges sediment efficiency. An object of the utility model is also to provide a shield constructs machine, the aperture opening rate that can solve the minor diameter blade disc is less and influences the technical problem who arranges sediment efficiency.
In order to achieve the above object, the utility model discloses shield constructs the technical scheme of blade disc and is:
the shield cutter head comprises a main beam, wherein a plurality of radial arms are formed on the shield cutter head by the main beam, each radial arm comprises two main beam arm plates which are arranged at intervals, a hob is fixed between the two main beam arm plates, each hob comprises a hob seat, and each hob seat is used for installing a hob cutter; an auxiliary beam is arranged between the adjacent radial arms along the circumferential direction of the shield cutter head; the shield cutter head also comprises a large ring arranged at the radial edge position; two beam branches are arranged at the radial outer end of the radial arm, one ends of the beam branches, which are far away from the axis of the shield cutter head, are fixed on the large circular ring, and the beam branches are provided with the hobbing cutters; the hobs on the shield cutter head are distributed on each radial arm and each beam branch; each of the secondary beams is formed from a single secondary beam arm panel.
The beneficial effects are that: the utility model discloses an among the shield structure blade disc, all be fixed with the hobbing cutter on each spoke arm of girder, two roof beam branches of the radial outer end of each spoke arm all are fixed with the hobbing cutter, only just can satisfy the tool spacing requirement through the hobbing cutter of spoke arm and roof beam branch for the rotation orbit of all hobbing cutters covers whole face, thereby replaces the function that the auxiliary girder arranged the hobbing cutter. The auxiliary beam is not provided with a hob and is a single auxiliary beam arm plate, so that the occupied space is reduced, a larger opening is formed, and the integral opening rate of the shield cutterhead is increased to adapt to the small-diameter shield cutterhead.
In a further improvement, each beam branch comprises two branch arm plates, and the inner side arm plates of the two beam branches are connected with each other; the inner side arm plate is an adjacent branch arm plate in two beam branches of the same spoke arm.
The beneficial effects are that: design like this, two roof beam branched adjacent brachium boards link together on same spoke to reduce two roof beam branched occupation space, further increase open area, and then further increase the whole aperture ratio of shield cutter head.
The improved structure is characterized in that each beam branch comprises two branch arm plates which are arranged at intervals, and the outer arm plate of each beam branch is provided with a bending section which is connected with the radial outer end of the corresponding spoke arm; the outer arm plate is a branch arm plate which is back to back in two beam branches of the same spoke arm.
The beneficial effects are that: the outside arm board is connected through the radial outer end that sets up the bending segment and radial arm, compares in outside arm board direct extension to be connected with radial arm or ring beam, and the design like this can reduce the branched occupation space of roof beam, further increase open area, and then further increase shield constructs the blade disc open ratio.
Further improve, the shield cutter head still includes the scraper, all is equipped with on spoke arm and the auxiliary girder the scraper.
The beneficial effects are that: due to the design, the arrangement of the scrapers is convenient, and the arrangement positions of the scrapers are more flexible on the premise that the movement track of the scrapers covers the whole tunnel face.
The further improvement is that an included angle is formed between two beam branches of the same radial arm, and a sealing plate is arranged on the front surface of the shield cutter head at the sector interval part corresponding to the included angle.
The beneficial effects are that: by the design, the adaptability of the beam branch structure is improved, and the condition that the excavating work of the shield cutter head is influenced by the fact that muck enters the shield cutter head from a gap between two beam branches is avoided.
In order to achieve the above object, the utility model discloses shield constructs the technical scheme of machine and is:
the shield machine comprises a shield body and a shield cutter head, wherein the shield cutter head is connected to a main drive through a flange, and the main drive is fixed on the shield body and used for driving the shield cutter head to rotate; the shield cutter head comprises a main beam, the main beam forms a plurality of radial arms on the shield cutter head, each radial arm comprises two main beam arm plates which are arranged at intervals, a hob is fixed between the two main beam arm plates, each hob comprises a hob seat, and each hob seat is used for installing a hob cutter; an auxiliary beam is arranged between the adjacent radial arms along the circumferential direction of the shield cutter head; the shield cutter head also comprises a large ring arranged at the radial edge position; two beam branches are arranged at the radial outer end of the radial arm, one ends of the beam branches, which are far away from the axis of the shield cutter head, are fixed on the large circular ring, and the beam branches are provided with the hobbing cutters; the hobs on the shield cutter head are distributed on each radial arm and each beam branch; each of the secondary beams is formed from a single secondary beam arm panel.
The beneficial effects are that: the utility model discloses an among the shield structure machine, only fix the hobbing cutter on the radial arm of shield structure blade disc and two roof beam branches of the radial outer end of each radial arm, just can satisfy the sword interval requirement to replace the function that the hobbing cutter was arranged to the auxiliary girder. The auxiliary beam is not provided with a hob and a hob seat, the auxiliary beam is a single auxiliary beam arm plate, the occupied space is reduced, a larger opening is formed, the integral opening rate of the shield cutter head is increased, and the slag discharge efficiency of the small-diameter shield tunneling machine in a complex stratum is improved.
In a further improvement, each beam branch comprises two branch arm plates, and the inner side arm plates of the two beam branches are connected with each other; the inner side arm plate is an adjacent branch arm plate in two beam branches of the same spoke arm.
The beneficial effects are that: design like this, two roof beam branched adjacent brachium boards link together on same spoke to reduce two roof beam branched occupation space, further increase open area, with the whole aperture ratio of further increase shield cutter head, reduce the sediment cake risk of knot, improve the sediment efficiency of the row of shield structure machine.
The improved structure is characterized in that each beam branch comprises two branch arm plates which are arranged at intervals, and the outer arm plate of each beam branch is provided with a bending section which is connected with the radial outer end of the corresponding spoke arm; the outer arm plate is a branch arm plate which is back to back in two beam branches of the same spoke arm.
The beneficial effects are that: the outside arm board is connected through the radial outer end that sets up the bending segment and radial arm, compares in outside arm board direct extension to be connected with the radial arm, and design like this can reduce the branched occupation space of roof beam, further increase open area to further increase shield constructs the blade disc aperture ratio, reduces the mud cake risk, improves the sediment efficiency of arranging of shield structure machine.
Further improve, the shield cutter head still includes the scraper, all is equipped with on spoke arm and the auxiliary girder the scraper.
The beneficial effects are that: the design is convenient for the arrangement of the scraper, and the arrangement position of the scraper is more flexible on the premise that the movement track of the scraper covers the whole face.
The further improvement is that an included angle is formed between two beam branches of the same radial arm, and a sealing plate is arranged on the front surface of the shield cutter head at the sector interval part corresponding to the included angle.
The beneficial effects are that: by the design, the adaptability of the beam branch structure is improved, and the condition that the excavating work of the shield cutter head is influenced by the fact that muck enters the shield cutter head from a gap between two beam branches is avoided.
Drawings
Fig. 1 is a schematic structural view of a shield cutter head of the present invention;
fig. 2 is a partial cross-sectional view of fig. 1.
In the figure: 11. a main beam; 12. a large circular ring; 13. a ring beam; 14. a spoke arm; 15. an armplate closing plate; 16. a secondary beam; 17. beam branching; 18. bending the section; 19. a double-edged hob; 20. a single-edge hob; 21. a scraper; 22. an edge scraper; 23. an inner side arm plate; 24. an outer arm plate; 25. a beam branch sealing plate; 26. a flange; 27. and (4) a bracket.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrases "comprising an … …," or the like, do not exclude the presence of such elements, processes, or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
The present invention will be described in further detail with reference to examples.
The utility model discloses a shield constructs embodiment 1 of blade disc:
the utility model discloses a shield constructs the blade disc and is applicable to the minor diameter blade disc below the diameter 5 m. As shown in fig. 1 and 2, the shield cutter head includes a main beam 11, the main beam 11 forms four radial arms 14 on the shield cutter head, each radial arm 14 includes two main beam arm plates which are parallel to each other and arranged at intervals, a hob is fixed between the two main beam arm plates, the hob includes a hob seat and a hob cutter, the hob seat is used for fixing the hob cutter, wherein, four double-edged hob cutters are installed at the middle position of the main beam 11 through a quadruplet hob seat, and a double-edged hob 19 is installed at the radial edge of the main beam 11 through the hob seat. An armplate sealing plate 15 is arranged on the front surface of the shield cutter head at the position between the two main beam armplates where the hobbing cutter is not arranged, so that the condition that the normal operation of the hobbing cutter is influenced because dregs enter the main beam 11 is avoided.
As shown in fig. 1 and 2, the shield cutterhead further includes a large ring 12 disposed at the radial end of the shield cutterhead. The radial outer end of each spoke arm 14 is provided with two beam branches 17 extending outwards, and one end of each beam branch 17 far away from the axis of the shield cutter head is fixedly lapped on the large ring 12. Each beam branch 17 comprises two branch arm plates arranged at intervals, wherein the branch arm plates opposite to each other in the two beam branches 17 on the same radial arm 14 are defined as outer side arm plates 24, the adjacent branch arm plates in the two beam branches 17 on the same radial arm 14 are inner side arm plates 23, each outer side arm plate 24 is provided with a bending section 18, the bending sections 18 are fixed on the side parts of the radial outer ends of the corresponding radial arms 14, and the two inner side arm plates 23 on the same radial arm 14 are connected together and fixed on the end surfaces of the radial outer ends of the radial arms 14 so as to reduce the occupied space of the beam branches 17, increase the opening space and further increase the integral opening rate of the shield cutter head so as to adapt to the small-diameter shield cutter head. The hobbing cutters are fixed between the two branch arm plates and comprise double-edge hobbing cutters 19 and single-edge hobbing cutters 20, and the movement tracks of all the hobbing cutters on the spoke arms 14 and the beam branches 17 cover the whole tunnel face so as to ensure the tunneling work of the shield cutter head. The beam branch sealing plate 25 is installed at the front face of the shield cutterhead at the position where the hob is not installed between two beam branches 17 of the same radial arm 14, so as to prevent the dregs from entering the interior of the beam branches 17. The combination and arrangement of the roller cutters is well-established and will not be described in detail here.
As shown in fig. 1, a circumferentially extending ring beam 13 is connected between any two adjacent spoke arms 14 to enhance the strength of the main beam 11. Between circumferentially adjacent spoke arms 14, secondary beams 16 are provided extending in the radial direction of the ring beam 13, all the secondary beams 16 being formed by a single secondary beam arm plate. In this embodiment, the secondary beam 16 is a strip steel plate having a certain thickness. The radial inner end of the secondary beam 16 is lapped on the ring beam 13, and the radial outer end is lapped on the large ring 12, so that the overall strength of the shield cutterhead is increased. Pairs of edge scrapers 22 are arranged on the secondary beam 16 on both sides adjacent to the large ring 12, and pairs of scrapers 21 are arranged on the secondary beam 16 on both sides adjacent to the ring beam 13. The scrapers 21 are arranged on the two sides of each spoke arm 14 of the main beam 11 along the extending direction of the spoke arm, the movement tracks of all the scrapers 21 and the side scrapers 22 on the shield cutter head cover the whole tunnel face so as to ensure the normal work of the shield cutter head, and the combination and arrangement of the scrapers 21 and the side scrapers 22 are mature technology and are not described in detail herein.
The utility model discloses an among the shield structure blade disc, be fixed with the hobbing cutter on each spoke arm 14 of girder 11, all be fixed with the hobbing cutter on the roof beam branch 17 of each radial arm 14 radial outer end, the hobbing cutter that only passes through spoke arm 14 and roof beam branch 17 just can satisfy the sword interval requirement for the rotation orbit of all hobbing cutters covers whole face, thereby replaces the function that supplementary beam 16 arranged the hobbing cutter. The auxiliary beam 16 is not provided with a hob, and the auxiliary beam 16 is a single auxiliary beam arm plate, so that the occupied space is reduced, a larger opening is formed, the small-diameter shield cutter head is adapted, and the integral opening rate of the shield cutter head is increased. In addition, adjacent branch arm plates of two beam branches 17 on the same radial arm 14 are connected together, and the opposite branch arm plates are connected to the radial arm 14 of the main beam 11 through a bending section 18, so that the occupied space of the beam branches 17 is reduced, the opening area is further increased, and the whole opening rate of the shield cutter head is further increased.
The utility model discloses a shield constructs embodiment 2 of blade disc:
this example differs from example 1 in that: in the embodiment 1, each beam branch 17 includes two branch arm plates arranged at intervals, the inner arm plates 23 of two beam branches 17 on the same spoke 14 are connected with each other, and the inner arm plates 23 are adjacent branch arm plates in two beam branches 17 on the same spoke 14. In this embodiment, the inner arm plates of the two beam branches are arranged at intervals, and one end of each inner arm plate close to the axis of the shield cutter head is connected to the radial outer end of the corresponding radial arm.
The utility model discloses a shield constructs embodiment 3 of blade disc:
this example differs from example 1 in that: in embodiment 1, the beam branch 17 includes two branch arm plates arranged at intervals, the outer arm plate 24 of each beam branch 17 is provided with a bending section 18, the bending section 18 is connected to the radial outer end of the corresponding spoke 14, and the outer arm plate 24 is the opposite branch arm plate of the two beam branches 17 on the same spoke 14. In this embodiment, the outer arm plate of each beam branch is not provided with a bending section.
The utility model discloses a shield constructs embodiment 4 of blade disc:
the present example differs from example 1 in that: in example 1, the blades 21 are provided on both the spoke arms 14 and the sub-beams 16. In this embodiment, the radial arms are not provided with scrapers, all the scrapers are mounted on the secondary beam, at this time, the radial inner end of the secondary beam is connected to the intersection position of each radial arm, and the radial outer end of the secondary beam is connected to the outer ring. In other embodiments, the blades may be disposed on the spoke arms, the secondary beams, and the beam branches.
The utility model discloses a shield constructs embodiment 5 of blade disc:
this example differs from example 1 in that: in embodiment 1, each outboard arm 24 has a bent section 18, and the bent section 18 is secured to the side of the radially outer end of the corresponding spoke 14. In this embodiment, the bent section of the outer arm plate is connected and fixed to the end surface of the radial outer end of the corresponding spoke arm.
The utility model discloses a shield constructs embodiment 6 of blade disc:
this example differs from example 1 in that: in embodiment 1, the outer arm plate 24 of the beam branch 17 is fixed to the corresponding spoke 14 at the end near the cutter head axis. In this embodiment, the outer arm plates in the beam branches are fixed to the ring beam at the ends near the axis.
The utility model discloses a shield constructs embodiment of machine: the shield machine comprises a shield body and a shield cutter head, wherein the shield cutter head is connected to a main drive through a flange 26, a bracket 27 is connected between the shield cutter head and the flange 26, the main drive is fixed on the shield body and used for driving the shield cutter head to rotate, and the structure of the shield cutter head is the same as that of the shield cutter head in any one of the embodiments 1 to 6, and is not specifically described herein.
Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and 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 without inventive effort to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features. 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 (10)
1. The shield cutter head comprises a main beam (11), wherein a plurality of radial arms (14) are formed on the shield cutter head by the main beam (11), each radial arm (14) comprises two main beam arm plates which are arranged at intervals, a hob is fixed between the two main beam arm plates, and the hob comprises a hob seat which is used for mounting a hob cutter; auxiliary beams (16) are arranged between the adjacent spoke arms (14) along the circumferential direction of the shield cutter head; the shield cutter head also comprises a large ring (12) arranged at the radial edge position; the shield cutter head is characterized in that two beam branches (17) are arranged at the radial outer ends of the spoke arms (14), one ends of the beam branches (17) far away from the axis of the shield cutter head are fixed on the large circular ring (12), and the beam branches (17) are provided with hobs; the hobs on the shield cutter head are distributed on all the radial arms (14) and the beam branches (17); each of the secondary beams (16) is formed from a single secondary beam arm panel.
2. A shield cutterhead according to claim 1, wherein each beam branch (17) includes two branch blades, the inner blades (23) of two beam branches (17) of the same radial arm (14) being interconnected; the inner arm plate (23) is an adjacent branch arm plate in two beam branches (17) of the same spoke arm (14).
3. The shield tunneling cutterhead according to claim 1, wherein each beam branch (17) includes two spaced branch arm plates, the outer arm plate (24) of each beam branch (17) is provided with a bent section (18), and the bent section (18) is connected with the radially outer end of the corresponding spoke arm (14); the outer arm plate (24) is a branch arm plate which is arranged on the back of two beam branches (17) of the same spoke arm (14).
4. A shield cutterhead according to any one of claims 1 to 3, further including scrapers (21), the scrapers (21) being provided on both the spoke arms (14) and the secondary beam (16).
5. A shield cutterhead according to any one of claims 1 to 3, wherein the two beam branches (17) of the same radial arm (14) form an angle therebetween, and the sector-shaped spacing portion corresponding to the angle is provided with a sealing plate on the front face of the shield cutterhead.
6. The shield machine comprises a shield body and a shield cutter head, wherein the shield cutter head is connected to a main drive through a flange, and the main drive is fixed on the shield body and used for driving the shield cutter head to rotate; the shield cutter head comprises a girder (11), the girder (11) forms a plurality of radial arms (14) on the shield cutter head, each radial arm (14) comprises two girder arm plates which are arranged at intervals, a hob is fixed between the two girder arm plates, each hob comprises a hob seat, and each hob seat is used for installing a hob cutter; auxiliary beams (16) are arranged between the adjacent spoke arms (14) along the circumferential direction of the shield cutter head; the shield cutter head also comprises a large ring (12) arranged at the radial edge position; the shield cutter head is characterized in that two beam branches (17) are arranged at the radial outer ends of the spoke arms (14), one ends of the beam branches (17) far away from the axis of the shield cutter head are fixed on the large circular ring (12), and the beam branches (17) are provided with hobs; the hobs on the shield cutter head are distributed on all the radial arms (14) and the beam branches (17); each of the secondary beams (16) is formed from a single secondary beam arm panel.
7. A shield tunneling machine according to claim 6, characterized in that each beam branch (17) comprises two branch blades, the inner blades (23) of two beam branches (17) being connected to each other; the inner arm plate (23) is an adjacent branch arm plate in two beam branches (17) of the same spoke arm (14).
8. The shield tunneling machine according to claim 6, wherein each beam branch (17) comprises two branch arm plates arranged at intervals, the outer arm plate (24) of each beam branch (17) is provided with a bent section (18), and the bent section (18) is connected with the radial outer end of the corresponding spoke arm (14); the outer arm plate (24) is a branch arm plate which is arranged on the back of two beam branches (17) of the same spoke arm (14).
9. A shield tunneling machine according to any one of claims 6-8, characterized in that the shield cutterhead further comprises scrapers (21), the scrapers (21) being provided on both the spoke arms (14) and the secondary beam (16).
10. The shield tunneling machine according to any one of claims 6-8, wherein an included angle is formed between two beam branches (17) of the same radial arm (14), and a sealing plate is arranged on the front surface of the shield cutterhead at the sector interval corresponding to the included angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220529063.6U CN217080462U (en) | 2022-03-11 | 2022-03-11 | Shield cutter head and shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220529063.6U CN217080462U (en) | 2022-03-11 | 2022-03-11 | Shield cutter head and shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217080462U true CN217080462U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220529063.6U Active CN217080462U (en) | 2022-03-11 | 2022-03-11 | Shield cutter head and shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217080462U (en) |
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2022
- 2022-03-11 CN CN202220529063.6U patent/CN217080462U/en active Active
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