CN215565930U - Hinged sliding barrel type continuous tunneling shield machine - Google Patents
Hinged sliding barrel type continuous tunneling shield machine Download PDFInfo
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- CN215565930U CN215565930U CN202120149291.6U CN202120149291U CN215565930U CN 215565930 U CN215565930 U CN 215565930U CN 202120149291 U CN202120149291 U CN 202120149291U CN 215565930 U CN215565930 U CN 215565930U
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Abstract
The utility model relates to an articulated sliding-drum type continuous tunneling shield machine which comprises a cutter head, a front shield, a middle shield, a tail shield, a sliding-drum structure, a front propelling oil cylinder, a rear assembling oil cylinder, a front articulated oil cylinder, a rear articulated oil cylinder and a segment assembling machine, wherein the cutter head is arranged on the front side of the front shield; the sliding cylinder structure is arranged between the front shield and the middle shield and comprises a sliding cylinder outer shell and a sliding cylinder inner shell, the sliding cylinder outer shell is fixedly connected with the front shield, and the sliding cylinder inner shell is connected with the middle shield through a plurality of front hinged oil cylinders; the middle shield and the tail shield are connected through a plurality of rear hinged oil cylinders; the front propelling cylinders are arranged in the sliding cylinder structure, the piston rod ends of the front propelling cylinders are connected with the front shield, and the cylinder body ends of the front propelling cylinders are connected with the middle shield; the cylinder bodies of the rear assembling oil cylinders are arranged on the middle shield and used for assembling the pipe pieces; the segment erector is arranged at the rear part of the middle shield and positioned in the tail shield and used for assembling shield segments. The utility model can realize the synchronous tunneling and splicing of the shield machine, and can flexibly adjust the posture of the shield machine to meet the requirements of turning and steering and turning tunneling with small curve radius.
Description
Technical Field
The utility model relates to the technical field of shield tunneling machines, in particular to an articulated sliding drum type continuous tunneling shield tunneling machine.
Background
In recent years, it is desired to increase the construction speed of the shield machine in order to reduce the construction cost of the shield tunnel and save the construction time. The existing double-shield TBM (Tunnel Boring Machine) suitable for a full-face rock stratum can realize synchronous tunneling and splicing of a main Machine, but no water-stop measure is provided, the existing water stratum construction cannot be realized, the problems of water stop and the like are considered, and the shield Machine is suitable for a soft soil stratum or a soil-rock interaction shield Machine and has no related continuous tunneling Machine type. The propelling of the existing shield machine and the assembling of the duct pieces are carried out intermittently and alternately, the propelling of the shield machine and the assembling of the duct pieces cannot be synchronous, and the construction of the shield machine is discontinuous; the existing shield machine capable of simultaneously performing tunneling and splicing has the defects of difficult shield posture control, long shield body size and incapability of realizing small curve turning; aiming at the defects of the prior art, the shield machine and the construction method are correspondingly developed in order to meet the requirements.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a hinged sliding-drum type continuous tunneling shield machine aiming at the defects of the prior art, which can realize synchronous tunneling and splicing of the shield machine, realize continuous operation of the shield machine, flexibly adjust the posture of the shield machine and adapt to the requirements of turning and steering and turning tunneling with small curve radius.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a hinged sliding barrel type continuous tunneling shield machine comprises a cutter head, a front shield, a middle shield and a tail shield; the device also comprises a sliding cylinder structure, a front propelling oil cylinder, a rear assembling oil cylinder, a front hinged oil cylinder, a rear hinged oil cylinder and a segment assembling machine; the sliding cylinder structure is arranged between the front shield and the middle shield and comprises a sliding cylinder outer shell and a sliding cylinder inner shell which can slide relatively, the sliding cylinder outer shell is fixedly connected with the front shield, the sliding cylinder inner shell is connected with the middle shield through a plurality of front hinged oil cylinders, and the sliding cylinder outer shell and the middle shield can swing relatively; the middle shield and the tail shield are connected through a plurality of rear hinged oil cylinders and can swing relatively; the front thrust oil cylinders are arranged in the sliding cylinder structure, the piston rod ends of the front thrust oil cylinders are connected with the front shield, and the cylinder body ends of the front thrust oil cylinders are connected with the middle shield; the cylinder bodies of the rear assembling oil cylinders are arranged on the middle shield, and piston rods of the rear assembling oil cylinders penetrate through the middle shield and then extend into the rear shield for assembling the pipe pieces; the segment erector is arranged at the rear part of the middle shield and in the tail shield and used for assembling shield segments.
In the scheme, the plurality of front propelling oil cylinders and the plurality of front hinged oil cylinders are uniformly arranged in a staggered manner in the circumferential direction.
In the scheme, the rear assembling oil cylinders and the rear hinged oil cylinders are uniformly arranged in a staggered manner in the circumferential direction.
In the above scheme, a guiding device and a sealing device are arranged between the inner wall of the outer shell of the sliding cylinder and the outer wall of the inner shell of the sliding cylinder.
In the above scheme, a sealing device is arranged between the sliding cylinder inner shell and the middle shield.
In the above scheme, a sealing device is arranged between the middle shield and the tail shield.
In the scheme, the shield machine comprises a continuous tunneling mode, under the continuous tunneling mode, if the working conditions of turning direction adjustment and small curve radius turning are met in the tunneling process, stroke differences of front thrust cylinders of different partitions are generated by adjusting the oil pressure of front thrust cylinders of different partitions, and attitude control in the propelling process of the shield machine is better realized by matching with the actions of the front hinged cylinders and the rear hinged cylinders.
In the scheme, the shield machine comprises a conventional tunneling mode, and in the conventional tunneling mode, namely when the front thrust cylinder is completely retracted, the front thrust cylinder is locked, the rear assembling cylinder is adopted for intermittently propelling and assembling the duct piece, and the conventional operation mode of intermittently propelling and assembling the duct piece of the conventional shield is recovered.
The method for synchronously constructing the tunneling and the assembling of the hinged sliding drum type continuous tunneling shield machine comprises the following steps:
s1, in the initial state, the front propelling oil cylinder retracts completely, and the rear assembling oil cylinder extends completely and props against the duct piece;
s2, the front propelling oil cylinder begins to extend out to drive the cutter head, the front shield and the sliding barrel shell to tunnel forwards together; meanwhile, a part of rear part of the propulsion oil cylinder begins to retract, and is matched with a segment erector to assemble segments;
s3, the forward propulsion of the shield and the assembly of the duct pieces are completely finished, the propulsion oil cylinders at the front part are completely extended out, and the assembly oil cylinders at the rear part are completely retracted;
s4, the cutter head and the front shield are kept still, the rear assembling oil cylinder starts to extend out, the front propelling oil cylinder starts to retract, and the middle shield and the tail shield are driven to move forwards and reset; and after the reset is finished, entering an initial state and re-entering the next cycle.
In the scheme, in the step S2, when the segment to be assembled is tunneled synchronously, only a small part of the rear assembling cylinders corresponding to the segment to be assembled are retracted, most of the rest rear assembling cylinders are still supported on other segments, and after the segment to be assembled is assembled, the corresponding small part of the rear assembling cylinders prop the segment again; sequentially assembling until the whole ring of pipe pieces are assembled; the middle shield and the tail shield are kept still in the process.
The utility model has the beneficial effects that:
the shield machine is provided with a telescopic sliding cylinder and four groups of oil cylinders, wherein the telescopic sliding cylinder can realize telescopic sliding of a shield body, under a continuous tunneling mode, a front propelling oil cylinder is used for synchronously propelling a cutter head, a rear oil cylinder is used for assembling pipe pieces, and two groups of middle hinged oil cylinders are used for direction adjustment and attitude control. Through the cooperative action of the telescopic sliding cylinder and the four groups of oil cylinders, the synchronous proceeding of shield propulsion and segment assembly can be realized, the shield tunneling cycle operation time is shortened, the hinged deflection of the front shield body and the rear shield body can be realized, the shield posture is continuously adjusted, and the requirements of turning direction adjustment and turning with small curve radius are met. Even if special conditions occur, the shield machine can lock the front oil cylinder and adopts the assembling oil cylinder for propulsion to recover the working mode of the conventional shield, namely shield tunneling and duct piece assembling are carried out alternately, and high reliability can be exerted in long-distance construction.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural view of a shield tunneling machine of the present invention;
fig. 2 is a schematic diagram of the synchronous construction process of the shield tunneling machine of the present invention.
In the figure: 11. a cutter head; 12. anterior shield; 13. middle shield; 14. a tail shield; 21. a slide cartridge housing; 22. a slide inner housing; 31. a front thrust cylinder; 32. the rear part is assembled with an oil cylinder; 33. the front part is hinged with an oil cylinder; 34. the rear part is hinged with an oil cylinder; 50. a segment erector; 60. a tube sheet.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, an articulated sliding-drum type continuous tunneling shield machine provided for an embodiment of the present invention includes a cutter head 11, a front shield 12, a middle shield 13, a tail shield 14, a sliding-drum structure, a front thrust cylinder 31, a rear splicing cylinder 32, a front articulated cylinder 33, a rear articulated cylinder 34, and a segment erector 50. The sliding cylinder structure is arranged between the front shield 12 and the middle shield 13 and comprises a sliding cylinder outer shell 21 and a sliding cylinder inner shell 22, a guiding and sealing device is arranged between the sliding cylinder outer shell 21 and the sliding cylinder inner shell 22, the sliding cylinder structure can slide back and forth, surrounding soil bodies are prevented from entering the interior of the shield machine in the telescopic sliding process, and construction safety is guaranteed. The sliding cylinder outer shell 21 is connected with the front shield 12 through bolts, and the sliding cylinder inner shell 22 is connected with the middle shield 13 through a plurality of front hinged oil cylinders 33, and the sliding cylinder outer shell and the middle shield can swing relatively. The middle shield 13 and the tail shield 14 are connected through a plurality of rear hinged oil cylinders 34 and can swing relatively. The front thrust cylinder 31 is arranged in the sliding cylinder structure, the piston rod end of the front thrust cylinder is connected with the front shield 12, and the cylinder body end of the front thrust cylinder is connected with the middle shield 13. The cylinder body of the rear assembling oil cylinder 32 is installed on the middle shield 13, and the piston rod of the rear assembling oil cylinder penetrates through the middle shield 13 and then extends into the rear shield for assembling the duct pieces 60. The segment erector 50 is mounted at the rear of the middle shield 13 and in the tail shield 14 and is used for assembling shield segments 60.
Further optimized, the front propulsion cylinders 31 and the front hinge cylinders 33 are uniformly arranged in a staggered mode in the circumferential direction. Each front propulsion cylinder 31 is independently controllable.
Further optimized, the rear assembling oil cylinders 32 and the rear hinging oil cylinders 34 are evenly arranged in a staggered mode in the circumferential direction. Each rear sub-assembly cylinder 32 can be independently controlled.
Further optimization, a sealing device is arranged between the sliding cylinder inner shell 22 and the middle shield 13; a sealing device is arranged between the middle shield 13 and the tail shield 14.
The shield machine body provided by the utility model is provided with the telescopic sliding cylinder with the hinging device, and the structure can realize telescopic sliding of the shield body and deflection of the front shield body and the rear shield body; meanwhile, the shield machine is equipped with four groups of oil cylinders, wherein the front propulsion oil cylinder 31 is used for synchronously propelling the cutter head 11, the rear splicing oil cylinder 32 is used for splicing the pipe piece, and the middle two groups of hinged oil cylinders are used for direction adjustment and attitude control. Through the cooperative action of the telescopic sliding cylinder and the four groups of oil cylinders, the synchronous proceeding of shield propulsion and segment assembly can be realized, and the shield tunneling cycle operation time is shortened; and the articulated deflection of the front shield body and the rear shield body can be realized, the shield posture can be continuously adjusted, and the requirements of turning direction adjustment and turning with small curve radius are met.
The shield machine can be switched between a continuous tunneling mode and a conventional tunneling mode. In the continuous tunneling mode, the shield attitude can be continuously adjusted, that is, the stroke difference of the front thrust cylinders 31 of different zones is generated by adjusting the oil pressure of the front thrust cylinders 31 of different zones in the tunneling process, and the attitude control of the shield tunneling machine in the propelling process is better realized by matching the actions of the front articulated cylinders 33 and the rear articulated cylinders 34. In a conventional tunneling mode, namely when the front thrust cylinder 31 is completely retracted, the front thrust cylinder 31 can be locked, the rear assembling cylinder 32 is adopted to intermittently advance and assemble the segments, the conventional operation mode that the conventional shield is intermittently advanced and assembled with the segments is restored, and high reliability can be exerted in long-distance construction.
The method for synchronously constructing the tunneling and the assembling of the hinged sliding drum type continuous tunneling shield machine comprises the following steps:
s1, in the initial state, as shown in state 1 in fig. 2, the front thrust cylinder 31 is fully retracted, and the rear splicing cylinder 32 is fully extended and abuts against the segment.
S2, after that, the front propelling cylinder 31 begins to extend out to drive the cutter head 11, the front shield 12 and the sliding barrel shell 21 to tunnel forwards together; meanwhile, part of the rear part of the propulsion oil cylinder begins to retract, and the segment is assembled by matching with the segment assembling machine 50. When the assembled duct pieces are synchronously tunneled, only a small part of the rear assembling oil cylinders 32 corresponding to the parts to be assembled are retracted, the rest most of the rear assembling oil cylinders 32 are still supported on other duct pieces, and after the assembly of the duct pieces at the parts is finished, the corresponding small part of the rear assembling oil cylinders 32 support the duct pieces again; sequentially assembling until the whole ring of pipe pieces are assembled; the middle shield 13 and the tail shield 14 are kept still in the process.
S3, as shown in state 2 in figure 2, the shield is pushed forward and the segment assembly is completed, the front pushing oil cylinder 31 is extended completely, and the rear assembling oil cylinder 32 is retracted completely.
S4, keeping the cutter head 11 and the front shield 12 still, extending the rear assembling oil cylinder 32, retracting the front propelling oil cylinder 31, and driving the middle shield 13 and the tail shield 14 to move forwards and reset; and after the reset is finished, entering an initial state and re-entering the next cycle.
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.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (6)
1. A hinged sliding barrel type continuous tunneling shield machine comprises a cutter head, a front shield, a middle shield and a tail shield; the device is characterized by further comprising a sliding cylinder structure, a front propelling oil cylinder, a rear assembling oil cylinder, a front hinged oil cylinder, a rear hinged oil cylinder and a segment assembling machine; the sliding cylinder structure is arranged between the front shield and the middle shield and comprises a sliding cylinder outer shell and a sliding cylinder inner shell which can slide relatively, the sliding cylinder outer shell is fixedly connected with the front shield, the sliding cylinder inner shell is connected with the middle shield through a plurality of front hinged oil cylinders, and the sliding cylinder outer shell and the middle shield can swing relatively; the middle shield and the tail shield are connected through a plurality of rear hinged oil cylinders and can swing relatively; the front thrust oil cylinders are arranged in the sliding cylinder structure, the piston rod ends of the front thrust oil cylinders are connected with the front shield, and the cylinder body ends of the front thrust oil cylinders are connected with the middle shield; the cylinder bodies of the rear assembling oil cylinders are arranged on the middle shield, and piston rods of the rear assembling oil cylinders penetrate through the middle shield and then extend into the rear shield for assembling the pipe pieces; the segment erector is arranged at the rear part of the middle shield and in the tail shield and used for assembling shield segments.
2. An articulated sliding drum type continuous tunneling shield machine according to claim 1, wherein the plurality of front thrust cylinders are uniformly arranged in a staggered manner in the circumferential direction with the plurality of front articulated cylinders.
3. The articulated sliding drum type continuous tunneling shield machine according to claim 1, wherein the rear assembled cylinders and the rear articulated cylinders are uniformly arranged in a staggered manner in the circumferential direction.
4. An articulated sliding barrel type continuous tunneling shield machine according to claim 1, wherein a guide device and a sealing device are provided between the inner wall of the outer casing of the sliding barrel and the outer wall of the inner casing of the sliding barrel.
5. An articulated sliding barrel type continuous tunneling shield machine according to claim 1, wherein a sealing device is provided between said inner casing of the sliding barrel and the middle shield.
6. An articulated sliding barrel type continuous tunneling shield machine according to claim 1, wherein a sealing device is provided between said middle shield and said tail shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120149291.6U CN215565930U (en) | 2021-01-20 | 2021-01-20 | Hinged sliding barrel type continuous tunneling shield machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120149291.6U CN215565930U (en) | 2021-01-20 | 2021-01-20 | Hinged sliding barrel type continuous tunneling shield machine |
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| CN215565930U true CN215565930U (en) | 2022-01-18 |
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| CN202120149291.6U Active CN215565930U (en) | 2021-01-20 | 2021-01-20 | Hinged sliding barrel type continuous tunneling shield machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727477A (en) * | 2021-01-20 | 2021-04-30 | 中建三局集团有限公司 | Hinged sliding barrel type continuous tunneling shield machine and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727477A (en) * | 2021-01-20 | 2021-04-30 | 中建三局集团有限公司 | Hinged sliding barrel type continuous tunneling shield machine and construction method thereof |
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