CN113944471A - Shield constructs machine and shield tail sealing brush thereof - Google Patents
Shield constructs machine and shield tail sealing brush thereof Download PDFInfo
- Publication number
- CN113944471A CN113944471A CN202010827250.8A CN202010827250A CN113944471A CN 113944471 A CN113944471 A CN 113944471A CN 202010827250 A CN202010827250 A CN 202010827250A CN 113944471 A CN113944471 A CN 113944471A
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- CN
- China
- Prior art keywords
- brush
- plate
- shield
- protection
- tail sealing
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 238000005192 partition Methods 0.000 claims abstract description 36
- 230000005641 tunneling Effects 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 239000011120 plywood Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 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
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
- F16J15/3288—Filamentary structures, e.g. brush seals
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a shield tunneling machine and a shield tail sealing brush thereof, wherein the shield tail sealing brush comprises a steel wire brush and protective brushes respectively arranged on the front side and the rear side of the steel wire brush, the protective brushes comprise supporting plates, partition plates and integral plates, and the supporting plates are arranged in a manner of being clung to the steel wire brush so as to support the partition plates and the integral plates. The partition plates and the integral plates are sequentially and alternately stacked, and the partition plates and the integral plates are positioned on one side, away from the steel wire brush, of the supporting plate after being alternately stacked. Every division board includes at least two plywoods that set up from each other, makes the elasticity increase of protection brush, guarantees that protection brush and section of jurisdiction fully laminate, and the gap between abundant shutoff shield tail and the section of jurisdiction is sealed effectually.
Description
Technical Field
The invention relates to the field of shield tunneling machines, in particular to a shield tunneling machine and a shield tail sealing brush thereof.
Background
The shield machine is widely applied to excavating tunnels or various underground pipelines. The shield tail of the shield tunneling machine is usually provided with a plurality of shield tail sealing brushes, external slurry, stones, water and the like can be effectively prevented from entering the shield tunneling machine, meanwhile, a filling cavity is formed after the shield tail sealing brushes are attached to pipe pieces, shield tail grease is filled into the filling cavity to balance external pressure, the phenomena of sand gushing and water gushing of the shield tail are reduced, and safe construction is guaranteed, so that the structure of the shield tail sealing brushes is optimized.
The existing shield tail sealing brush comprises a steel plate bundle and a steel wire bundle, wherein the steel plate bundle is composed of a plurality of steel plates which are arranged in a stacked mode, so that the overall elasticity of the steel plate bundle is relatively weak, the steel plate bundle is difficult to be fully attached to a duct piece, a gap exists between the shield tail sealing brush and the duct piece, and the sealing effect is influenced.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a shield tunneling machine and a shield tail sealing brush thereof, in which the shield brushing is changed from the original integral steel plate stacking arrangement to the alternative stacking arrangement of the partition plate and the integral plate, and the partition plate includes at least two laminates arranged separately, so as to improve the elasticity of the shield brushing, ensure the shield brushing is fully attached to the segment, and improve the sealing effect.
The shield tail sealing brush of the shield tunneling machine comprises a steel wire brush and protection brushes arranged on the front side and the rear side of the steel wire brush, wherein the protection brushes comprise:
a support plate abutting against the wire brush;
a plurality of alternately range upon range of setting and locate division board and the whole board that the backup pad kept away from steel brush one side, arbitrary division board includes two piece at least plywoods that set up apart from each other.
Preferably, the distance between two adjacent plates of each partition plate gradually increases in a direction toward the support plate.
Preferably, any partition plate comprises a first laminate and a second laminate which are arranged apart from each other, and the symmetry plane of the whole plate is coincident with the symmetry plane between the first laminate and the second laminate.
Preferably, the width of the dividing panel is greater than the width of the unitary panel.
Preferably, the width of the supporting plate is larger than that of the partition plate so that the two ends of the supporting plate symmetrically form overlapping parts, and any two adjacent protective brushes are overlapped by the overlapping parts.
Preferably, the protection brush comprises a front protection brush and a rear protection brush which are respectively arranged on the front side and the rear side of the steel wire brush, and the thickness of the rear protection brush is larger than that of the front protection brush.
Preferably, the steel wire brush comprises at least two layers, and the abutting end of the front protection brush, the abutting end of the two layers of steel wire brushes and the abutting end of the rear protection brush form a step-shaped structure.
Preferably, the fixed plate is provided with a U-shaped fixing groove, the fixed ends of the front protection brush, the two layers of steel wire brushes and the rear protection brush are fixed on the U-shaped fixing groove in a stacked mode, and the front protection brush, the steel wire brushes and the rear protection brush are fixed on the U-shaped fixing groove through rivets.
Preferably, the included angle between the protective brush and the fixing plate ranges from 40 degrees to 55 degrees.
The shield tunneling machine provided by the invention comprises the shield tail sealing brush.
Compared with the background art, the shield tail sealing brush of the shield machine comprises a steel wire brush and protection brushes respectively arranged on the front side and the rear side of the steel wire brush, wherein each protection brush comprises a supporting plate, a partition plate and an integral plate, and the supporting plate is arranged close to the steel wire brush so as to support the partition plate and the integral plate. The partition plates and the integral plates are sequentially and alternately stacked, and the partition plates and the integral plates are positioned on one side, away from the steel wire brush, of the supporting plate after being alternately stacked. Every division board includes at least two plywoods that set up from each other, makes the elasticity increase of protection brush, guarantees that protection brush and section of jurisdiction fully laminate, and the gap between abundant shutoff shield tail and the section of jurisdiction is sealed effectually.
The shield machine comprising the shield tail sealing brush provided by the invention has the same technical effect.
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 structural diagram of a shield tail sealing brush of a shield tunneling machine according to an embodiment of the present invention;
FIG. 2 is a view taken along line A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 1;
fig. 4 is an overlapping cross-sectional view of two adjacent guard brushes of fig. 1.
The reference numbers are as follows:
the steel wire brush 1, the protective brush 2, the fixing plate 3 and the rivet 4;
a support plate 21, a partition plate 22, and an integrated plate 23;
a lap joint portion 211;
a front protection brush 201 and a rear protection brush 202;
u-shaped fixing slots 31.
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.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific examples.
Referring to fig. 1 to 4, fig. 1 is a structural diagram of a shield tail sealing brush of a shield tunneling machine according to an embodiment of the present invention; FIG. 2 is a view taken along line A of FIG. 1; FIG. 3 is a sectional view taken along line B-B of FIG. 1; fig. 4 is an overlapping cross-sectional view of two adjacent guard brushes of fig. 1.
The embodiment of the invention discloses a shield tail sealing brush of a shield machine, which comprises a steel wire brush 1 and a protective brush 2, wherein the steel wire brush 1 comprises at least two layers, the protective brush 2 is arranged on the front side and the rear side of the steel wire brush 1, and the protective brush 2 is used for supporting the steel wire brush 1.
The protective brush 2 comprises a support plate 21, a partition plate 22 and an integral plate 23, wherein the support plate 21 is abutted against the steel wire brush 1, so that the support plate 21 is arranged close to the steel wire brush 1 to play a supporting role. One side that steel brush 1 was kept away from to backup pad 21 is equipped with a plurality of division boards 22 and a plurality of whole board 23, whole board 23 is whole board promptly, division board 22 includes at least two plywoods that set up mutually, every division board 22 and every whole board 23 range upon range of setting in turn, replace the range upon range of setting of current whole steel sheet, make the elasticity of protection brush 2 increase to some extent, guarantee that protection brush 2 and section of jurisdiction fully laminate, the gap between abundant shutoff shield tail and the section of jurisdiction, sealed effect is better.
In order to further improve the elasticity of the protection brush 2, the distance between two adjacent layers of each partition plate 22 is gradually increased in the direction approaching the support plate 21, that is, the closer the partition plate 22 is to the support plate 21, the larger the distance between two adjacent layers of the partition plate 22 is, the greater the deformation amount of the protection brush 2 is, and the elasticity is naturally improved.
In this particular embodiment, each divider panel 22 includes a first panel and a second panel, the first panel being disposed apart from the second panel. The first layer plate and the second layer plate on the same layer have the same thickness. Accordingly, the distance between the first and second plates is gradually increased in a direction toward the support plate 21, that is, the gap of the partition plate 22 is wider as it is closer to the support plate 21.
In order to enable the protection brush 2 to have better elasticity, the integral plate 23 is positioned right in the middle of the first layer plate and the second layer plate, namely the symmetrical plane of the integral plate 23 is coincided with the symmetrical plane between the first layer plate and the second layer plate, and the deformation degree of the first layer plate and the deformation degree of the second layer plate are consistent.
In order to further improve the elasticity of the protection brush 2, the width of the partition plate 22 is greater than that of the integral plate 23, so that the first layer plate and the second layer plate of each partition plate 22 and the integral plate 23 form a cover tile type laminated structure, and the deformation of the protection brush 2 is further improved.
In this embodiment, the width of each of the integrated plates 23 is the same, the width of each of the partition plates 22 is also the same, and the distance between the laminae constituting each of the partition plates 22 gradually increases in the direction closer to the support plate 21, meaning that the width of the laminae constituting each of the partition plates 22 gradually decreases in the direction closer to the support plate 21.
For making two adjacent protection brushes 2 realize reliable equipment, on the basis that division board 22 width is greater than whole board 23 width, the width of backup pad 21 is greater than division board 22's width, makes the both ends of backup pad 21 surpass division board 22, surpasss the part and forms overlap joint 211, and two arbitrary adjacent protection brushes 2 carry out the overlap joint with the help of overlap joint 211, prevent to take place the dislocation in two adjacent protection brushes 2 installation, provide the regulation for promoting the leakproofness of protection brush 2. In this embodiment, the width of the overlapping part 211 formed at both ends of the supporting plate 21 is 40 to 60mm, but not limited thereto.
The protection brush 2 is including locating preceding protection brush 201 and the back protection brush 202 of steel brush 1 front and back both sides respectively, is close to the big effort that back protection brush 202 bore and is greater than preceding protection brush 201, and the thickness of back protection brush 202 is greater than the thickness of preceding protection brush 201, and back protection brush 202 all contains the backup pad 21 that offsets with steel brush 1 with preceding protection brush 201, and the two difference lies in that the quantity of the separation board 22 that back protection brush 202 is range upon range of and whole board 23 is more than preceding protection brush 201.
Specifically, the rear shield brush 202 includes two partition plates 22 and two integrated plates 23, and each partition plate 22 and each integrated plate 23 are alternately stacked. The distance between the first layer plate and the second layer plate of the partition plate 22 at the first layer is 0-5 mm, and the distance between the first layer plate and the second layer plate of the partition plate 22 at the third layer is 20-30 mm. The front protection brush 201 includes a partition plate 22 and a monolithic plate 23, and the partition plate 22 and the monolithic plate 23 are stacked. Of course, the thicknesses of the rear protection brush 202 and the front protection brush 201 are not limited to these, and are specifically set according to the specification and the actual working condition of the shield tunneling machine, and are not specifically limited herein.
It should be noted that, the front and back directions are based on the current view of fig. 1, and in fig. 1, the left side of the wire brush 1 is the front side and the right side thereof is the back side.
In actual installation, one end of each of the front protection brush 201, the steel wire brush 1 and the rear protection brush 202 abuts against the segment, and the end abutting against the segment is an abutting end. In this embodiment, two layers of wire brushes 1 are specifically included, and in order to sufficiently attach to the duct piece, the abutting end of the front protection brush 201, the abutting end of the two layers of wire brushes 1, and the abutting end of the rear protection brush 202 form a stepped structure, that is, the bending length of the front protection brush 201, the bending length of the wire brush 1, and the bending length of the rear protection brush 202 are sequentially increased.
Based on the above-described abutting ends, the other ends of the front protection brush 201, the two-layer wire brush 1, and the rear protection brush 202 are fixed together, and the ends may be referred to as fixed ends. The invention also comprises a fixing plate 3, wherein one end of the fixing plate 3 is horizontal, the other end of the fixing plate 3 is provided with a U-shaped fixing groove 31, and the fixing end of the front protection brush 201, the fixing ends of the two layers of steel wire brushes 1 and the fixing end of the rear protection brush 202 are fixed on the U-shaped fixing groove 31 in a laminating way.
For reliable fixing, the fixed end of the front protection brush 201, the fixed end of the two-layer wire brush 1 and the fixed end of the rear protection brush 202 are fixed to the U-shaped fixing groove 31 by rivets 4. In this embodiment, a plurality of sets of through holes are formed on both sides of the U-shaped fixing groove 31, and the rivet 4 passing through one side of the U-shaped fixing groove 31 sequentially passes through the fixing end of the front protection brush 201, the fixing ends of the two layers of wire brushes 1, and the fixing end of the rear protection brush 202 from top to bottom, based on the current view of fig. 1.
In order to be fully attached to the duct piece, the included angle between the protection brush 2 and the fixing plate 3 is preferably 40-55 degrees, but not limited to this.
The invention also provides a shield machine comprising the shield tail sealing brush, and the shield machine has the same technical effect.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a shield tail sealing brush of shield constructs machine which characterized in that includes steel brush (1) and locates protection brush (2) of both sides around steel brush (1), protection brush (2) include:
a support plate (21) abutting against the wire brush (1);
the steel wire brush comprises a plurality of partition plates (22) and an integral plate (23) which are alternately stacked and arranged on one side, far away from the steel wire brush (1), of the support plate (21), wherein any partition plate (22) comprises at least two laminated plates which are arranged in a separated mode.
2. The shield tail sealing brush of a shield tunneling machine according to claim 1, wherein the distance between two adjacent laminates of each partition plate (22) increases gradually in the direction toward the support plate (21).
3. The shield tail sealing brush of a shield tunneling machine according to claim 2, wherein any of the partition plates (22) comprises a first layer plate and a second layer plate which are arranged apart from each other, and a symmetry plane of the integrated plate (23) coincides with a symmetry plane between the first layer plate and the second layer plate.
4. The shield tail sealing brush of a shield tunneling machine according to claim 2, wherein the width of the partition plate (22) is greater than the width of the integrated plate (23).
5. The shield tail sealing brush of the shield tunneling machine according to claim 4, wherein the width of the supporting plate (21) is greater than the width of the partition plate (22) so that both ends of the supporting plate (21) symmetrically form overlapping parts (211), and any two adjacent protective brushes (2) are overlapped by means of the overlapping parts (211).
6. The shield tail sealing brush of the shield tunneling machine according to any one of claims 1 to 5, wherein the protection brush (2) comprises a front protection brush (201) and a rear protection brush (202) which are respectively arranged at the front side and the rear side of the steel wire brush (1), and the thickness of the rear protection brush (202) is larger than that of the front protection brush (201).
7. The shield tail sealing brush of the shield tunneling machine according to claim 6, wherein the wire brush (1) comprises at least two layers, and the abutting end of the front protection brush (201), the abutting end of the two layers of the wire brush (1) and the abutting end of the rear protection brush (202) form a stepped structure.
8. The shield tail sealing brush of the shield tunneling machine according to claim 7, further comprising a fixing plate (3), wherein the fixing plate (3) is provided with a U-shaped fixing groove (31), the fixing end of the front protection brush (201), the fixing ends of the two layers of the steel wire brush (1) and the fixing end of the rear protection brush (202) are fixed to the U-shaped fixing groove (31) in a stacking manner, and the front protection brush (201), the steel wire brush (1) and the rear protection brush (202) are fixed to the U-shaped fixing groove (31) through rivets (4).
9. The shield tail sealing brush of the shield tunneling machine according to claim 8, wherein an included angle between the protection brush (2) and the fixing plate (3) ranges from 40 ° to 55 °.
10. A shield tunneling machine comprising the shield tail sealing brush according to any one of claims 1 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020214226894 | 2020-07-17 | ||
| CN202021422689 | 2020-07-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113944471A true CN113944471A (en) | 2022-01-18 |
| CN113944471B CN113944471B (en) | 2024-01-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010827250.8A Active CN113944471B (en) | 2020-07-17 | 2020-08-17 | Shield machine and shield tail sealing brush thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113944471B (en) |
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