CN210977489U - Small-diameter small knife interval shield cutter head - Google Patents
Small-diameter small knife interval shield cutter head Download PDFInfo
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- CN210977489U CN210977489U CN201922037022.6U CN201922037022U CN210977489U CN 210977489 U CN210977489 U CN 210977489U CN 201922037022 U CN201922037022 U CN 201922037022U CN 210977489 U CN210977489 U CN 210977489U
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- cutter
- scraper
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Abstract
The utility model discloses a small-diameter small knife interval shield cutter head, which comprises a panel, wherein the panel is provided with a cutter box hole and an opening, a hob is arranged in the cutter box hole, and a cutter assembly is arranged in the opening; the openings are distributed on the outer side of the panel; the rear part of the panel is provided with a circular ring, and the circular ring is connected with the main drive through a twisting leg; the twist leg is disposed at a rear side of the panel. The utility model is suitable for a rock strength is high, and the construction environment that water pressure is high through adopting the panel cutter dish, has reduced the installation space of hobbing cutter to guarantee arranging of knife interval hobbing cutter, guaranteed the broken rock efficiency of this type of blade dish in hard rock stratum.
Description
Technical Field
The utility model belongs to the technical field of the special engineering equipment in tunnel, concretely relates to small diameter knife interval shield constructs blade disc.
Background
The shield has the advantages of strong geological adaptability, safe and environment-friendly construction method, high tunneling speed and the like, and is widely applied to projects such as railway construction, the shield plays an increasingly important role in subway tunnel projects, gradually plays an advantage in large tunnel excavation projects such as sea crossing and the like, is increasingly applied to small-diameter tunnel projects such as power supply, water supply and communication channels at present, and the small-diameter tunnel projects are generally 2m-5 m.
With the popularization of shield construction methods, the stratum used by small-diameter shields is more and more complex, a hard rock heading machine is the primary choice for the stratum with higher rock strength, but some hard rock strata have higher water pressure, and the hard rock heading machine cannot meet the construction conditions under the high-water-pressure environment, so that the development of small-diameter shields applicable to the high-rock strength and high-water-pressure environment is more and more important, particularly, the small-diameter shield cutterhead is influenced by the structural size, and the structural strength of the cutterhead, the size of a cutter and the distance between cutters are influenced.
According to the rock breaking principle of a hard rock stratum, the larger the size of the hob is, the smaller the cutter spacing is, and the higher the rock breaking efficiency is, but the conventional spoke type small-diameter cutter head cannot meet the configuration of the cutter spacing of the large-size hob.
SUMMERY OF THE UTILITY MODEL
Can't satisfy the configuration problem of jumbo size hobbing cutter knife interval to conventional spoke formula minor diameter blade disc, the utility model discloses utilize the panel cutter disc can provide the method in more cloth sword spaces, for guaranteeing rock breaking efficiency, provide a minor diameter knife interval shield cutter disc.
For solving the above technical problem, the utility model discloses the technical scheme who adopts as follows:
a small-diameter small knife interval shield cutter head comprises a panel, wherein a cutter box hole and an opening are formed in the panel, a hob is arranged in the cutter box hole, and a cutter assembly is arranged in the opening; the openings are uniformly distributed on the outer side of the panel; the rear part of the panel is provided with a circular ring, and the circular ring is connected with the main drive through a twisting leg; the twist leg is disposed at a rear side of the panel.
The hobbing cutter includes the taut formula hobbing cutter of axial, the taut formula hobbing cutter of axial sets up the central point at the panel and puts, and the taut formula hobbing cutter of axial can dismantle with the panel and be connected. The hobbing cutter still includes single wedge block hobbing cutter, single wedge block hobbing cutter sets up in the outside of the taut formula hobbing cutter of axial, and single wedge block hobbing cutter can dismantle with the panel and be connected. The cutter assembly comprises a scraper and/or an edge scraper, and the scraper and the edge scraper are arranged on the opening; the scraper and the edge scraper are both detachably connected with the panel.
In order to detect the wear condition of the panel structure, the front part of the panel is also provided with a wear detection.
In order to increase the structural strength and the wear-resistant strength of the panel, the front part of the panel is provided with a wear-resistant composite steel plate.
The twisting legs are provided with special-shaped grooves which are matched with the rear parts of the hobs.
In order to reduce the abrasion of the circular ring in the excavating process, the outer side of the circular ring is provided with a wear-resisting block.
And a flange is also arranged between the twisting leg and the main drive, the flange is fixedly sleeved outside the main drive, and the flange is connected with the twisting leg.
The utility model has the advantages that:
the utility model is suitable for a rock strength is high, and the construction environment that water pressure is high, through adopting the panel formula blade disc, has increased the installation space of cutter through setting up cutter box hole and opening on the panel, and the panel has replaced traditional cutter box curb plate and has both played the supporting role to the cutter, has still reduced hobbing cutter installation space to guarantee the arrangement of knife interval hobbing cutter, for hard rock stratum and high water pressure environment provide the excavation condition, guaranteed the broken rock efficiency of blade disc in hard rock stratum.
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the connection between the present invention and the main drive.
FIG. 3 is a schematic view of the connection of the axial tension hob and the face plate.
In the figure, 1 is a panel, 2 is a circular ring, 3 is a twisting leg, 4 is a flange, 5 is a single wedge hob, 6 is an axial tensioning hob, 7 is wear detection, 8 is a scraper, 9 is an edge scraper, 10 is a wear-resistant block, 11 is a wear-resistant composite steel plate, 12 is an opening, and 13 is a special-shaped groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
A small-diameter shield cutter head with small knife intervals comprises a panel 1, wherein the panel 1 is a thick plate processed integrally; as shown in fig. 1, a knife box hole and an opening 12 are arranged on the panel 1, the knife box hole comprises an opening I and an opening II, the opening I is arranged at the center of the panel 1, and the opening II is uniformly arranged in the outer circumferential direction of the opening I; hobs are fixedly arranged in the hole I and the hole II, each hob comprises an axial tensioning type hob 6 and a single wedge block hob 5, each axial tensioning type hob 6 is installed in the hole I, each axial tensioning type hob 6 is arranged in the center of the panel 1 in a cross shape, as shown in fig. 3, each axial tensioning type hob 6 is detachably connected with the panel 1, and a hob holder of each axial tensioning type hob 6 is fixed on the panel 1 through a bolt so as to facilitate later maintenance or replacement of each axial tensioning type hob 6; single wedge hobbing cutter 5 sets up in trompil II, and single wedge hobbing cutter 5 is located the outside of the taut formula hobbing cutter 6 of axial, and single wedge hobbing cutter 5 distributes at the edge and the front of panel 1, and single wedge hobbing cutter 5 can dismantle with panel 1 and be connected to in later stage maintenance or change single wedge hobbing cutter 5.
The openings 12 are uniformly distributed on the outer side of the panel 1, and the scrapers 8 and the edge scrapers 9 are fixedly arranged in the openings 12, in the embodiment, the number of the openings 12 is four, four openings 12 are distributed at the tail parts of two central lines of the axial tensioning type hob 6, and an included angle between two adjacent openings 12 is 90 degrees; the scraper 8 and the edge scraper 9 are fixedly arranged on the side wall of the opening 12, the edge scraper 9 is arranged on the outer side of the scraper 8, and the scraper 8 and the edge scraper 9 are detachably connected with the panel 1, so that the scraper 8 or the edge scraper 9 can be repaired or replaced at a later stage; in this embodiment, the number of the scrapers 8 in each opening 12 is two, the number of the edge scrapers 9 is two, the two scrapers 8 are arranged oppositely, and the two edge scrapers 9 are arranged oppositely; as shown in fig. 2, a circular ring 2 is fixedly arranged at the rear part of the panel 1, the circular ring 2 is fixedly connected with the main drive through a twisting leg 3, and the circular ring 2 can connect the panel 1 with the shield at the rear part; in order to reduce the abrasion of the circular ring 2 during excavation, the abrasion-resistant blocks 10 are welded on the outer side of the circular ring 2, and the abrasion-resistant blocks 10 are alloy abrasion-resistant blocks.
As shown in fig. 2, the twisting legs 3 are symmetrically and fixedly arranged at the rear part of the panel 1, the twisting legs 3 play a role of supporting the panel 1, one end of each twisting leg 3 is fixedly connected with the circular ring 2, and the other end of each twisting leg 3 is fixedly connected with the main drive through the flange 4; the flange 4 is fixedly sleeved outside the main drive, and the flange 4 is fixedly connected with the torsion leg 3. Turn round and be equipped with special-shaped groove 13 on leg 3, special-shaped groove 13 and single wedge hobbing cutter 5's rear portion phase-match, the shape in special-shaped groove 13 is unanimous with the shape of single wedge hobbing cutter 5 rear portion structure promptly, takes out or changes single wedge hobbing cutter 5 headspace for the later stage, avoids turning round setting up of leg 3 and influences the change of single wedge hobbing cutter 5.
In order to detect the abrasion condition of the structure on the panel 1, an abrasion detection 7 is further welded on the panel 1, the abrasion detection 7 is a hydraulic abrasion detection, the hydraulic abrasion detection comprises a protection plate and a protection structure, the protection plate is fixedly arranged on the outer side of the protection component, and the protection plate is welded with the panel 1; the protection assembly is connected with the shield tunneling machine, which is not detailed in the embodiment of the prior art; the panel 1 is worn and torn gradually in the excavation process, and the protection shield is also worn and torn in step, protects the subassembly after the protection shield is worn out and is destroyed, and the shield constructs the machine and reports to the police and indicate. In order to increase the structural strength and the wear-resisting strength of the panel 1, a wear-resisting composite steel plate 11 is welded on the panel 1 in a surfacing mode, and the wear-resisting composite steel plate 11 is arranged between the axial tensioning type hobbing cutter 6, the single wedge block hobbing cutter 5, the scraper 8 and the edge scraper 9.
In this embodiment, the torsion legs 3 are solid torsion legs, the number of the solid torsion legs is four, and the four solid torsion legs are uniformly distributed around the circular ring 2 and the main drive.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A small-diameter small knife interval shield cutter head is characterized by comprising a panel (1), wherein a cutter box hole and an opening (12) are formed in the panel (1), a hob is arranged in the cutter box hole, and a cutter assembly is arranged in the opening (12); the openings (12) are distributed on the outer side of the panel (1); the rear part of the panel (1) is provided with a circular ring (2), and the circular ring (2) is connected with the main drive through a twisting leg (3); the twisting legs (3) are arranged on the rear side of the panel (1).
2. The small diameter small knife space shield cutterhead according to claim 1, wherein the hob includes an axially tensioned hob (6), the axially tensioned hob (6) is disposed in a central position of the face plate (1), and the axially tensioned hob (6) is detachably connected to the face plate (1).
3. The small diameter small knife gap shield cutterhead according to claim 2, wherein the hob further includes a single wedge hob (5), the single wedge hob (5) is disposed outside the axially tensioned hob (6), and the single wedge hob (5) is detachably connected to the face plate (1).
4. A small diameter small knife gap shield cutterhead according to claim 1, 2 or 3, wherein the cutter assembly includes a scraper (8) and/or an edge scraper (9), the scraper (8) and the edge scraper (9) are disposed on the opening (12), and both the scraper (8) and the edge scraper (9) are detachably connected to the panel (1).
5. The small diameter small knife gap shield cutterhead according to claim 4, wherein a wear check (7) is also provided on the face plate (1).
6. The small diameter small knife space shield cutterhead according to claim 1, 3 or 5, characterized in that the front of the face plate (1) is provided with a wear resistant clad steel plate (11).
7. The shield cutterhead with small diameter and small knife space according to claim 6, wherein the twist leg (3) is provided with a profiled groove (13), and the profiled groove (13) is matched with the rear part of the hob.
8. The small-diameter small knife-space shield tunneling cutter head according to claim 7, characterized in that a wear-resistant block (10) is arranged on the outer side of the circular ring (2).
9. The small-diameter small knife space shield cutterhead according to claim 1, 7 or 8, wherein a flange (4) is further arranged between the torsion leg (3) and the main drive, the flange (4) is fixedly sleeved outside the main drive, and the flange (4) is connected with the torsion leg (3).
10. The small-diameter small knife-space shield cutterhead according to claim 9, characterized in that the openings (12) are evenly distributed on the outside of the panel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922037022.6U CN210977489U (en) | 2019-11-22 | 2019-11-22 | Small-diameter small knife interval shield cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922037022.6U CN210977489U (en) | 2019-11-22 | 2019-11-22 | Small-diameter small knife interval shield cutter head |
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| Publication Number | Publication Date |
|---|---|
| CN210977489U true CN210977489U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922037022.6U Active CN210977489U (en) | 2019-11-22 | 2019-11-22 | Small-diameter small knife interval shield cutter head |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719298A (en) * | 2021-07-30 | 2021-11-30 | 太原理工大学 | Small-diameter cutter head and tunnel boring machine |
| CN115949421A (en) * | 2023-01-31 | 2023-04-11 | 盾科工程装备有限公司 | Cutter head structure for micro shield machine |
| CN118361251A (en) * | 2024-06-17 | 2024-07-19 | 中国铁建重工集团股份有限公司 | Cutter head of small-diameter shield tunneling machine |
-
2019
- 2019-11-22 CN CN201922037022.6U patent/CN210977489U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719298A (en) * | 2021-07-30 | 2021-11-30 | 太原理工大学 | Small-diameter cutter head and tunnel boring machine |
| CN115949421A (en) * | 2023-01-31 | 2023-04-11 | 盾科工程装备有限公司 | Cutter head structure for micro shield machine |
| CN118361251A (en) * | 2024-06-17 | 2024-07-19 | 中国铁建重工集团股份有限公司 | Cutter head of small-diameter shield tunneling machine |
| CN118361251B (en) * | 2024-06-17 | 2024-10-01 | 中国铁建重工集团股份有限公司 | Cutter head of small-diameter shield tunneling machine |
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