CN208416544U - Flexible shield structure in double-shielded TBM - Google Patents
Flexible shield structure in double-shielded TBM Download PDFInfo
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- CN208416544U CN208416544U CN201820627173.XU CN201820627173U CN208416544U CN 208416544 U CN208416544 U CN 208416544U CN 201820627173 U CN201820627173 U CN 201820627173U CN 208416544 U CN208416544 U CN 208416544U
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- shield
- shield body
- opening
- interior flexible
- branch pole
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Abstract
It stretches in a kind of double-shielded TBM shield structure, including interior flexible shield shield body and hinged oil cylinder pedestal, the inner peripheral surface of flexible shield shield body including hinged oil cylinder tube chamber welds with base, it is characterized in that, stretch in the described lower part of shield shield body rear end is equipped with opening for accumulated slag to be discharged, it is welded with stiffening plate on the inside of the edge of the opening, is welded with shield body stiffening plate at the edge of the inner peripheral surface of the interior flexible shield shield body rear end.The utility model has the advantages that: it is not open in branch pole, so that branch pole structure is simple, reduces the design of branch pole and manufacturing cost, improves the intensity of branch pole；The opening being located at below interior flexible shield shield body is closer from accumulated slag, and accumulated slag is facilitated to be smoothly discharged；It is equipped with opening stiffening plate on the inside of open edge, opening is prevented to be deformed by accumulated slag extruding；Inner surface of the interior flexible shield shield body close to branch pole one end is equipped with shield body stiffening plate, and interior flexible shield shield body edge is prevented to be deformed by accumulated slag extruding.
Description
Technical field
The utility model relates to shield structures of stretching in a kind of double-shielded TBM.
Background technique
The shield body (refer to Fig. 3) of double-shielded TBM (Tunnel Boring Machine rock tunnel(ling) machine) includes anterior shield 6, outer
Flexible shield 7, interior flexible shield 1, branch pole 8 and tail shield 9, wherein the front-end and back-end of interior flexible shield 1 are separately connected 7 He of external extension shield
Branch pole 8, main function are combined with external extension shield 7, are completed the driving of double-shielded TBM and are changed step work.In double-shielded TBM
When driving, inside and outside flexible shield elongation, when double-shielded TBM changes step, inside and outside flexible shield shortens.But shield structure of stretching in tradition is
Cylindrical structure, the design of lower part imperforation, TBM can generate following problems when working: 1) stretching in and there is seam between shield and branch pole
Gap, branch pole diameter are slightly larger than interior flexible shield, and end face arches upward dregs and generates accumulated slag when branch pole advances, accumulated slag squeeze in it is flexible
Shield leads to interior flexible shield deformation.The method of the accumulated slag in discharge between flexible shield and branch pole is by branch pole bottom at present
Baltimore groove, which runs through entire branch pole lower part, and baltimore groove itself can also reduce the quantity of accumulated slag, branch pole end face
The accumulated slag of generation enters tail shield by baltimore groove, then reuses artificial removing, prevents accumulated slag from squeezing interior flexible shield and generating change
Shape.The shortcomings that above-mentioned prior art is: branch pole bottom is equipped with baltimore groove, and structure is complicated, improves design and manufacturing cost, makes
Branch pole strength reduction, and the structure deslagging is difficult.
Summary of the invention
The purpose of this utility model is just to provide in a kind of double-shielded TBM shield structure of stretching, to solve prior art presence
Structure is complicated, and design and preparation cost are high, the problem of branch pole strength reduction and deslagging difficulty.
To achieve the above object, technical solution adopted in the utility model is: stretch shield knot in a kind of double-shielded TBM
Structure, including interior flexible shield shield body and hinged oil cylinder pedestal, the inner peripheral surface of hinged oil cylinder tube chamber welds with base flexible shield shield body inside are special
Sign is, the lower part for shield shield body rear end of stretching in described is equipped with the opening for accumulated slag to be discharged, in the edge of the opening
Side is welded with stiffening plate, is welded with shield body stiffening plate at the edge of the inner peripheral surface of the interior flexible shield shield body rear end.
The shape of the opening is U-shaped, and open one end is towards the rear end of interior flexible shield shield body.
The shield body stiffening plate is located at the part on the opening both sides along the setting in one week of interior flexible shield shield body rear end or only.
The utility model has the advantages that: it is not open in branch pole, so that branch pole structure is simple, reduces the design of branch pole
And manufacturing cost, improve the intensity of branch pole；The opening being located at below interior flexible shield shield body is closer from accumulated slag, facilitates accumulated slag suitable
Benefit discharge；It is equipped with opening stiffening plate on the inside of open edge, opening is prevented to be deformed by accumulated slag extruding；Interior flexible shield shield body is leaned on
The inner surface of nearly branch pole one end is equipped with shield body stiffening plate, and interior flexible shield shield body edge is prevented to be deformed by accumulated slag extruding.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model entirety；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the schematic perspective view that the utility model is mounted on double-shielded TBM.
Specific embodiment
Referring to figures 1-3, flexible shield structure in a kind of double-shielded TBM of the utility model, including interior flexible shield shield body 1 and hinge
Cylinder pedestal 5 is connect, hinged oil cylinder pedestal 5 is welded on the inner peripheral surface of interior flexible shield shield body 1, and hinged oil cylinder pedestal 5 is for hinged oil
Cylinder, hinged oil cylinder is for connecting (routine techniques, not shown) with branch pole 8.
The lower part of the rear end (one end connect with branch pole 8) for shield shield body 1 of stretching in described is equipped with for being discharged product
The opening 3 of slag, is welded with stiffening plate 2 on the inside of the edge of the opening 3, on the side of the inner peripheral surface of interior flexible 1 rear end of shield shield body
Edge is welded with shield body stiffening plate 4.
The shape of the opening 3 is U-shaped, and open one end is towards the rear end of interior flexible shield shield body 1.
The shield body stiffening plate 4 is located at the part on 3 both sides of opening along the setting in one week of interior flexible 1 rear end of shield shield body or only
(half cycle as shown).
The working principle of the utility model is: when advancing during changing step, interior flexible shield shield body 1 and 8 gap of branch pole
Locate the accumulated slag generated to be discharged in interior flexible shield shield body 1 at opening 3, then reuse artificial scarfing cinder, prevents accumulated slag accumulation internal
Flexible shield shield body 1 generates pressure, avoids interior flexible shield deformation.
Claims (3)
1. shield structure of stretching in a kind of double-shielded TBM, including interior flexible shield shield body (1) and hinged oil cylinder pedestal (5), hinged oil cylinder
Pedestal (5) is welded on the inner peripheral surface of interior flexible shield shield body (1), which is characterized in that shield shield body (1) rear end of stretching in described
Lower part is equipped with the opening (3) for accumulated slag to be discharged, and is welded with stiffening plate (2) on the inside of the edge of the opening (3), interior flexible at this
The edge of the inner peripheral surface of shield shield body (1) rear end is welded with shield body stiffening plate (4).
2. shield structure of stretching in double-shielded TBM according to claim 1, which is characterized in that the shape of the opening (3)
For U-shaped, open one end is towards the rear end of interior flexible shield shield body (1).
3. shield structure of stretching in double-shielded TBM according to claim 1, which is characterized in that the shield body stiffening plate (4)
It is arranged or is only located within one week the part on opening (3) both sides along interior flexible shield shield body (1) rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820627173.XU CN208416544U (en) | 2018-04-28 | 2018-04-28 | Flexible shield structure in double-shielded TBM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820627173.XU CN208416544U (en) | 2018-04-28 | 2018-04-28 | Flexible shield structure in double-shielded TBM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208416544U true CN208416544U (en) | 2019-01-22 |
Family
ID=65117413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820627173.XU Active CN208416544U (en) | 2018-04-28 | 2018-04-28 | Flexible shield structure in double-shielded TBM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208416544U (en) |
-
2018
- 2018-04-28 CN CN201820627173.XU patent/CN208416544U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 801 Chunyang Road, High tech Zone, Qingdao, Shandong Province, 266000 Patentee after: China Ship (Qingdao) rail transportation equipment Co.,Ltd. Address before: 266111 to the north of Chunyang Road, Qingdao high tech Industrial Development Zone, Shandong Province Patentee before: CSIC (QINGDAO) TRACK TRAFFIC EQUIPMENT CO.,LTD. |
|
| CP03 | Change of name, title or address |