CN210105871U - Shield constructs double-sleeve shaftless screw machine - Google Patents
Shield constructs double-sleeve shaftless screw machine Download PDFInfo
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- CN210105871U CN210105871U CN201920607800.8U CN201920607800U CN210105871U CN 210105871 U CN210105871 U CN 210105871U CN 201920607800 U CN201920607800 U CN 201920607800U CN 210105871 U CN210105871 U CN 210105871U
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- thick bamboo
- screw machine
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Abstract
The utility model discloses a shield constructs double-sleeve shaftless screw machine, including the spiral section of thick bamboo, be equipped with helical blade in the spiral section of thick bamboo, the outside cover of spiral section of thick bamboo is equipped with the sleeve, concentric setting between spiral section of thick bamboo and the sleeve, spiral section of thick bamboo one end is connected with drive arrangement respectively. The utility model discloses beneficial effect: the passing rate of the boulders with large particle size is increased, and the situations of blocking of the screw machine, shaft breakage and the like in the water-rich boulder stratum are effectively avoided, so that the normal tunneling of the shield machine is ensured, and the production efficiency of the shield machine is improved.
Description
Technical Field
The utility model relates to a shield constructs quick-witted rotating machine technical field, particularly, relates to a shield constructs double-sleeve shaftless screw machine.
Background
The earth pressure balance shield machine unearthing mode is that a screw machine stretches into an earth bin to unscrew earth, a screw shaft is arranged in the middle of the traditional screw machine, and helical blades are arranged on the outer ring of the screw shaft. Under general geological conditions, the traditional screw machine can meet normal tunneling tasks, but a large amount of floating stones can be accumulated in a soil bin in shield tunnel construction of a water-rich floating stone stratum, the floating stones can abrade a main shaft of the screw machine and can generate a shaft breaking phenomenon in serious conditions, meanwhile, the floating stones with large particle sizes can also cause the screw machine to be jammed, normal work and production are influenced, the region of No. 6 line I of the subway, the region of 2-standard three stations and four stations of 2-stage engineering civil engineering, the tunneling stratum is the water-rich large floating stone stratum, and the maximum particle size reaches 80 cm. 4 earth pressure balance shield machines are adopted in the interval, the maximum grain diameter of the screw machine passing through the interval is 300mm, the screw machine is blocked and stopped for a plurality of times in the process from starting to receiving, and 3 shield machines have 2 broken shafts.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a shield constructs double sleeve formula shaftless screw machine can the effectual rich water boulder storehouse, card machine and the disconnected axle scheduling problem of screw machine that appear in the stone stratum shield tunneling machine of solving float.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a shield constructs double-sleeve shaftless screw machine, includes the spiral shell, be equipped with helical blade in the spiral shell, the outside cover of spiral shell is equipped with the sleeve, set up with one heart between spiral shell and the sleeve, spiral shell one end is connected with drive arrangement respectively.
Further, a gap is arranged between the spiral cylinder and the sleeve.
Furthermore, a through hole is formed in the sleeve, and a through hole corresponding to the slag outlet is formed in the spiral cylinder.
Further, the slag outlet is positioned at the tail end of the sleeve.
The utility model has the advantages that: the passing rate of the boulders with large particle size is increased, and the situations of blocking of the screw machine, shaft breakage and the like in the water-rich boulder stratum are effectively avoided, so that the normal tunneling of the shield machine is ensured, and the production efficiency of the shield machine is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and 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 a shield double-sleeve shaftless screw machine according to an embodiment of the present invention.
In the figure: 1. a helical blade; 2. a spiral cylinder; 3. a sleeve; 4. a slag outlet; 5. a drive device; 6. a void.
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 all belong to the protection scope of the present invention.
As shown in fig. 1, according to the embodiment of the utility model provides a shield constructs shaftless screw machine of double-barrelled formula, including spiral section of thick bamboo 2, spiral section of thick bamboo 2 is main atress and the main part of exerting oneself, increases the robustness of this screw machine, under the rotation of high moment of torsion, high strength, the phenomenon of rupture can not appear, outside sleeve mainly plays protection and sealed effect, be equipped with helical blade 1 in the spiral section of thick bamboo 2, with the external welded fastening of whole helical blade 1 on spiral section of thick bamboo 2, the outside cover of spiral section of thick bamboo 2 is equipped with sleeve 3, set up with one heart between spiral section of thick bamboo 2 and the sleeve 3, spiral section of thick bamboo 2 combines with sleeve 3, forms the shaftless screw machine that can provide high moment of torsion and high strength, 2 one end of spiral section of thick bamboo are connected with.
In a specific embodiment of the present invention, a gap 6 is provided between the screw cylinder 2 and the sleeve 3, and when in use, a lubricant (foam, bentonite, grease, etc.) is filled in the gap 6, thereby reducing the binding and friction force on the sleeve 3 and the helical blade.
In a specific embodiment of the present invention, the sleeve 3 is provided with a through hole, the spiral cylinder 2 is provided with a through hole corresponding to the slag hole 4, and the soil body is gradually discharged along with the extrusion through the slag hole 4.
In a specific embodiment of the present invention, the slag hole 4 is located at the tail end of the sleeve 3, which is convenient for operation and use.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
When the shield double-sleeve shaftless screw machine is used, according to the utility model, the driving device 5 at the tail end provides the rotating power to drive the screw cylinder 2 and the screw blades 1 to rotate simultaneously, the screw blades 1 rotate in the soil bin to drive the soil body into the screw cylinder 2, and when the pressure in the screw cylinder 2 reaches a certain value, the soil body is gradually discharged along with extrusion; according to specific geological conditions, the shaftless screw machine is directly installed on a shield machine to carry out normal tunneling work.
To sum up, with the help of the above technical scheme of the utility model, not only increase the passing rate of big particle diameter boulder, effectually avoid situations such as screw machine card machine and disconnected axle that appear in rich water boulder stratum moreover to guarantee the normal tunnelling of shield structure machine, improve its production efficiency.
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 (4)
1. The utility model provides a shield constructs double-sleeve shaftless screw machine, includes spiral shell (2), its characterized in that, be equipped with helical blade (1) in spiral shell (2), the outside cover of spiral shell (2) is equipped with sleeve (3), spiral shell (2) with set up with one heart between sleeve (3), spiral shell (2) one end is connected with drive arrangement (5) respectively.
2. The shield double-sleeve shaftless screw according to claim 1, wherein a gap (6) is provided between said screw cylinder (2) and said sleeve (3).
3. The shield double-sleeve shaftless screw machine according to claim 1 or 2, wherein a slag outlet (4) is provided on said sleeve (3), and a through hole corresponding to said slag outlet (4) is provided on said screw cylinder (2).
4. The shield double-sleeve shaftless screw according to claim 3, wherein said slag outlet (4) is located at the rear end of the sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920607800.8U CN210105871U (en) | 2019-04-29 | 2019-04-29 | Shield constructs double-sleeve shaftless screw machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920607800.8U CN210105871U (en) | 2019-04-29 | 2019-04-29 | Shield constructs double-sleeve shaftless screw machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210105871U true CN210105871U (en) | 2020-02-21 |
Family
ID=69538604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920607800.8U Active CN210105871U (en) | 2019-04-29 | 2019-04-29 | Shield constructs double-sleeve shaftless screw machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210105871U (en) |
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2019
- 2019-04-29 CN CN201920607800.8U patent/CN210105871U/en active Active
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