CN220769475U - Two-stage screw conveyor for shield - Google Patents
Two-stage screw conveyor for shield Download PDFInfo
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- CN220769475U CN220769475U CN202322739955.6U CN202322739955U CN220769475U CN 220769475 U CN220769475 U CN 220769475U CN 202322739955 U CN202322739955 U CN 202322739955U CN 220769475 U CN220769475 U CN 220769475U
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- 239000000463 material Substances 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000005641 tunneling Effects 0.000 description 7
- 239000002689 soil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 208000022971 Tuberculous meningitis Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 208000001223 meningeal tuberculosis Diseases 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a two-stage screw conveyor for a shield, which relates to the technical field of conveyors of shield machines and comprises a mounting frame and a connecting pipe; and (3) mounting frame: three conveying pipelines of an oblique material pipe, an elbow pipe and a transverse material pipe are fixed; the axes of the oblique material pipe and the transverse material pipe form an included angle smaller than 180 degrees, and the bent pipe is positioned between the adjacent ends of the oblique material pipe and the transverse material pipe; and (3) connecting a pipe: two connecting pipes are respectively arranged between the three conveying pipelines, two ends of each connecting pipe are respectively and rotatably connected with corresponding ends of the three conveying pipelines, and the connecting pipes and the conveying pipelines are combined into a continuous sealing pipeline; screw conveying rods respectively matched with the inclined material pipe and the transverse material pipe are fixed in the two connecting pipes; the device also comprises a driving mechanism which drives the two connecting pipes to rotate on the mounting frame respectively. The two-stage screw conveyor for the shield consists of two-stage screw conveying rods, so that the length of a pipeline is prolonged, the space inside the shield machine is adapted, the control is convenient, and the stability is good.
Description
Technical Field
The utility model relates to the technical field of conveyors of shield machines, in particular to a two-stage screw conveyor for a shield.
Background
The shield tunneling machine is a tunnel tunneling machine using a shield tunneling method. The construction method of the shield is that the tunneling machine constructs (lays) a "shield" (which refers to a supporting segment) of a tunnel while tunneling, and is different from the open construction method. Internationally, the generalized shield machine can also be used for rock strata, but is different from an open (non-shield method) tunnel boring machine. In China, tunnel boring machines for soft earth formations are conventionally called (narrow sense) shield machines, and TBMs for rock formations are conventionally called (narrow sense) TBMs.
The basic working principle of the shield tunneling machine is that a cylindrical steel component excavates soil while pushing forward along the axis of a tunnel. The shell of the cylinder assembly, i.e. the shield, serves as a temporary support for the excavated, as yet unlined tunnel section, withstanding the pressure of the surrounding earth layer and sometimes also the groundwater pressure and keeping the groundwater out. The operations of digging, discharging soil, lining and the like are carried out under the shield of the shield.
The shield machine is used for conveying soil to the rear through the screw conveyor in the excavating process, the general screw conveyor is obliquely arranged and limited by the space in the shield machine, the obliquely arranged screw conveyor is limited in length and needs to be transversely conveyed through the belt conveyor, and when the stratum with larger water content is constructed, the pressure at the outlet of the shorter screw conveyor is larger and is easy to gush and difficult to control.
For this purpose, we propose a two-stage screw conveyor for shield.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides a two-stage screw conveyor for a shield, which consists of two-stage screw conveying rods, prolongs the length of a pipeline, adapts to the space inside the shield machine, is convenient to control, has good stability, and can effectively solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a two-stage screw conveyor for shield comprises a mounting frame and a connecting pipe;
and (3) mounting frame: three conveying pipelines of an oblique material pipe, an elbow pipe and a transverse material pipe are fixed;
the axes of the oblique material pipe and the transverse material pipe form an included angle smaller than 180 degrees, and the bent pipe is positioned between the adjacent ends of the oblique material pipe and the transverse material pipe;
and (3) connecting a pipe: two connecting pipes are respectively arranged between the three conveying pipelines, two ends of each connecting pipe are respectively and rotatably connected with corresponding ends of the three conveying pipelines, and the connecting pipes and the conveying pipelines are combined into a continuous sealing pipeline;
screw conveying rods respectively matched with the inclined material pipe and the transverse material pipe are fixed in the two connecting pipes;
the device also comprises a driving mechanism which drives the two connecting pipes to rotate on the mounting frame respectively.
Further, the connecting pipe comprises a ring pipe and splicing pipes at two ends of the inner ring surface of the ring pipe, the ring pipe is positioned between adjacent conveying pipelines, the outer ring surface is exposed, and the splicing pipes extend to the inner cavities of the conveying pipelines.
Furthermore, the outer ring surface of the plug tube is provided with a bearing and a sealing ring in a sleeved mode, and sealing grooves corresponding to the sealing ring are arranged on the outer ring surface of the plug tube and the inner wall of the conveying pipeline. The bearing is favorable for the rotation of the connecting pipe, and the sealing ring is used for guaranteeing the tightness of the connecting pipe, the inclined material pipe and the transverse material pipe.
Further, the device also comprises a stop seal ring, wherein the stop seal ring is fixed on the inner walls of the three conveying pipelines, and the end part of the plug tube is propped against the corresponding stop seal ring when the plug tube extends to the inner cavity of the conveying pipeline. The stop seal ring defines the location of the connection tube.
Further, the driving mechanism comprises two driven bevel gears which are fixedly connected with the connecting pipe respectively, a gear motor is fixed on the mounting frame, and a driving bevel gear which is meshed with the two driven bevel gears respectively is fixed on an output shaft of the gear motor. The driving mechanism is arranged at the middle position of the whole conveying pipeline, the two-stage spiral conveying rods are respectively and directly controlled, the loss in the power transmission process is reduced, and the device is convenient to install and stable to operate.
Further, the angular velocity of the driven bevel gear near the lateral feed pipe is greater than the angular velocity of the other driven bevel gear. The rotation speed of the spiral conveying rod in the transverse material pipe is high, so that the pressure in the oblique material pipe can be relieved, and the safety is improved.
Compared with the prior art, the utility model has the beneficial effects that: the two-stage screw conveyor for the shield has the following advantages:
1. the two-stage screw conveyor for the shield consists of two-stage screw conveying rods, so that the length of a pipeline is prolonged, the pressure of soil in the conveying process is weakened gradually, and the gushing probability can be reduced when a soil layer with larger water content is constructed;
2. the driving mechanism is arranged in the middle of the whole conveying pipeline, and two-stage spiral conveying rods are respectively and directly controlled, so that the loss in the power transmission process is reduced, and the device is convenient to install and stable to operate; therefore, the inclined material pipe and the transverse material pipe can have a certain included angle so as to adapt to the space inside the shield machine;
3. the rotation speed of the spiral conveying rod in the transverse material pipe is high, so that the pressure in the oblique material pipe can be relieved, and the safety is improved.
Drawings
FIG. 1 is a schematic diagram of the overall axial structure of the present utility model;
FIG. 2 is a schematic view of the whole cross-sectional structure of the present utility model;
FIG. 3 is an enlarged schematic view of the structure at A of the present utility model;
FIG. 4 is a schematic illustration of the fitting of the elbow and connecting tube of the present utility model;
fig. 5 is a schematic view showing the cooperation of the connecting tube and the screw conveyor according to the present utility model.
In the figure: 1 mounting frame, 2 oblique material pipes, 3 bent pipes, 4 transverse material pipes, 5 connecting pipes, 501 annular pipes, 502 inserting pipes, 6 spiral conveying rods, 7 driving mechanisms, 701 driven bevel gears, 702 gear motors, 703 driving bevel gears, 8 bearings, 9 sealing rings and 10 stop sealing rings.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present embodiment provides a technical solution: a two-stage screw conveyor for shield comprises a mounting frame 1 and a connecting pipe 5;
mounting bracket 1: three conveying pipelines of an inclined material pipe 2, an elbow pipe 3 and a transverse material pipe 4 are fixed;
the axes of the oblique material pipe 2 and the transverse material pipe 4 form an included angle smaller than 180 degrees, and the bent pipe 3 is positioned between the adjacent ends of the two; the transverse material pipe 4 is paved along the top wall inside the shield tunneling machine, so that the space is not occupied;
and (3) connecting pipe 5: two connecting pipes 5 are respectively arranged between the three conveying pipelines, two ends of each connecting pipe 5 are respectively connected with corresponding ends of the three conveying pipelines in a rotating way, and the connecting pipes 5 and the conveying pipelines are combined into a continuous sealing pipeline; the connecting pipe 5 comprises a ring pipe 501 and plug pipes 502 at two ends of the inner ring surface of the ring pipe 501, the ring pipe 501 is positioned between adjacent conveying pipelines, the outer ring surface is exposed, and the plug pipes 502 extend to the inner cavity of the conveying pipeline;
the outer ring surface of the plug tube 502 is provided with a bearing 8 and a sealing ring 9 which are sleeved with each other, and the outer ring surface of the plug tube 502 and the inner wall of the conveying pipeline are provided with sealing grooves corresponding to the sealing ring 9; the device further comprises a stop seal ring 10, wherein the stop seal ring 10 is fixed on the inner walls of three conveying pipelines, and when the plug pipe 502 extends to the inner cavity of the conveying pipeline, the end part of the plug pipe 502 is abutted against the corresponding stop seal ring 10; the bearing 8 is beneficial to the rotation of the connecting pipe 5, and the sealing ring 9 is used for ensuring the tightness of the connecting pipe 5, the inclined material pipe 2 and the transverse material pipe 4; the stop seal ring 10 defines the position of the connection tube 5;
screw conveying rods 6 respectively matched with the inclined material pipe 2 and the transverse material pipe 4 are fixed in the two connecting pipes 5; the linear conveying of soil is realized by the rotation of the spiral conveying rod 6;
the device also comprises a driving mechanism 7 which is arranged on the mounting frame 1 and respectively drives the two connecting pipes 5 to rotate; the driving mechanism 7 comprises two driven bevel gears 701 which are fixedly connected with the connecting pipe 5 respectively, a gear motor 702 is fixed on the mounting frame 1, and a driving bevel gear 703 which is meshed with the two driven bevel gears 701 respectively is fixed on an output shaft of the gear motor 702; the angular velocity of the driven bevel gear 701 near the lateral feed pipe 4 is greater than the angular velocity of the other driven bevel gear 701;
the driving mechanism 7 is arranged in the middle of the whole conveying pipeline, and respectively and directly controls the two-stage spiral conveying rods 6, so that the loss in the power transmission process is reduced, and the device is convenient to install and stable to operate; through the conveying of the two-stage spiral conveying rods 6, the pressure is gradually reduced, so that the pressure in the transverse material pipe 4 is relatively reduced, the rotating speed of the spiral conveying rods 6 in the transverse material pipe 4 can be increased, the conveying efficiency is properly improved, and the pressure in the inclined material pipe 2 is favorably relieved, and the safety is improved.
The working process of the two-stage screw conveyor for the shield provided by the utility model is as follows:
under the fixing action of the mounting frame 1, the inclined material pipe 2, the bent pipe 3 and the transverse material pipe 4 are fixed and do not rotate;
the gear motor 702 of the driving mechanism 7 is powered to drive the driving bevel gear 703 to rotate and then drive the two driven bevel gears 701 and the connecting pipes 5 to rotate, and the two connecting pipes 5 drive the spiral conveying rods 6 in the inclined material pipes 2 and the transverse material pipes 4 to rotate respectively;
the earth excavated by the shield machine enters the lower end of the inclined material pipe 2 due to pressure, is driven by the bolt conveying rod 6 in the inclined material pipe to enter the bent pipe 3, is pressed into the transverse material pipe 4 after being accumulated by the bent pipe 3, is brought to the other end by the bolt conveying rod 6 of the transverse material pipe 4, and is then guided out.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.
Claims (6)
1. The utility model provides a shield constructs with two-stage screw conveyer which characterized in that: comprises a mounting frame (1) and a connecting pipe (5);
mounting bracket (1): three conveying pipelines of an inclined material pipe (2), an elbow pipe (3) and a transverse material pipe (4) are fixed;
the axes of the oblique material pipe (2) and the transverse material pipe (4) form an included angle smaller than 180 degrees, and the bent pipe (3) is positioned between adjacent ends of the two;
connecting pipe (5): two connecting pipes (5) are respectively arranged between the three conveying pipelines, two ends of each connecting pipe (5) are respectively connected with corresponding ends of the three conveying pipelines in a rotating way, and the connecting pipes (5) and the conveying pipelines are combined into continuous sealing pipelines;
screw conveying rods (6) respectively matched with the inclined material pipes (2) and the transverse material pipes (4) are fixed in the two connecting pipes (5);
the device also comprises a driving mechanism (7) which drives the two connecting pipes (5) to rotate on the mounting frame (1) respectively.
2. A two-stage screw conveyor for shield according to claim 1, characterized in that: the connecting pipe (5) comprises a ring pipe (501) and plug-in pipes (502) at two ends of the inner ring surface of the ring pipe (501), the ring pipe (501) is positioned between adjacent conveying pipelines, the outer ring surface is exposed, and the plug-in pipes (502) extend to the inner cavities of the conveying pipelines.
3. A two-stage screw conveyor for shield according to claim 2, characterized in that: the outer ring surface of the plug tube (502) is provided with a bearing (8) and a sealing ring (9) in a sleeved mode, and the inner wall of the outer ring surface of the plug tube (502) and the inner wall of the conveying pipeline are provided with sealing grooves corresponding to the sealing ring (9).
4. A two-stage screw conveyor for shield according to claim 2, characterized in that: the sealing device is characterized by further comprising a stop sealing ring (10), wherein the stop sealing ring (10) is fixed on the inner walls of the three conveying pipelines, and when the plug pipe (502) extends to the inner cavity of the conveying pipeline, the end part of the plug pipe (502) is abutted to the corresponding stop sealing ring (10).
5. A two-stage screw conveyor for shield according to claim 1, characterized in that: the driving mechanism (7) comprises two driven bevel gears (701) which are fixedly connected with the connecting pipe (5) respectively, a gear motor (702) is fixed on the mounting frame (1), and a driving bevel gear (703) which is meshed with the two driven bevel gears (701) respectively is fixed on an output shaft of the gear motor (702).
6. A two-stage screw conveyor for shield according to claim 5, wherein: the angular velocity of the driven bevel gear (701) near the transverse feed pipe (4) is greater than the angular velocity of the other driven bevel gear (701).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322739955.6U CN220769475U (en) | 2023-10-12 | 2023-10-12 | Two-stage screw conveyor for shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322739955.6U CN220769475U (en) | 2023-10-12 | 2023-10-12 | Two-stage screw conveyor for shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220769475U true CN220769475U (en) | 2024-04-12 |
Family
ID=90613386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322739955.6U Active CN220769475U (en) | 2023-10-12 | 2023-10-12 | Two-stage screw conveyor for shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220769475U (en) |
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2023
- 2023-10-12 CN CN202322739955.6U patent/CN220769475U/en active Active
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