CN112727492B - A screw conveyer that is used for earth pressure balance shield to construct soil sediment and carries - Google Patents
A screw conveyer that is used for earth pressure balance shield to construct soil sediment and carries Download PDFInfo
- Publication number
- CN112727492B CN112727492B CN202110116607.6A CN202110116607A CN112727492B CN 112727492 B CN112727492 B CN 112727492B CN 202110116607 A CN202110116607 A CN 202110116607A CN 112727492 B CN112727492 B CN 112727492B
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- Prior art keywords
- cutting
- grinding
- screw shaft
- pressure balance
- screw conveyor
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- 239000002689 soil Substances 0.000 title claims abstract description 14
- 239000013049 sediment Substances 0.000 title description 2
- 239000002893 slag Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005641 tunneling Effects 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
- B26D3/161—Cutting rods or tubes transversely for obtaining more than one product at a time
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Forests & Forestry (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Screw Conveyors (AREA)
Abstract
The invention provides a screw conveyor for conveying earth pressure balance shield earth slag, which comprises a screw shaft and a barrel, wherein the screw shaft coaxially penetrates through the barrel, the first end of the barrel is open to form an inlet, and a cutting and grinding assembly is arranged between the inner wall of the barrel close to the inlet and blades of the screw shaft. According to the screw conveyor for conveying the soil pressure balance shield soil residues, the cutting and grinding assembly is arranged between the inner wall of the barrel body close to the inlet and the blades of the screw shaft, so that a long plastic drain pipe entering the screw conveyor can be cut into a plurality of sections of plastic drain pipes with short lengths, and the problems that the screw conveyor is blocked, the screw conveyor is accelerated to be worn, the conveying efficiency of the screw conveyor is seriously influenced and the like due to the plastic drain pipes are solved.
Description
Technical Field
The invention relates to the technical field of earth pressure balance shield construction, in particular to a spiral conveyor for conveying earth slag of an earth pressure balance shield.
Background
In the present tunnel construction, due to the ground and the lines, the shield machine may encounter various obstacles such as plastic drainage pipes (PBD pipes) and the like during the tunneling. After the shield machine meets the plastic drain pipe, under normal conditions, the cutter head can cut the plastic drain pipe, and finally, the plastic drain pipe is cut into a plurality of sections to be discharged. However, after the plastic drain pipe is cut off, the plastic drain pipe is in a free state, and a part of the plastic drain pipe is still long, so that after the plastic drain pipe enters the existing screw conveyor, the plastic drain pipe is too long to block the screw conveyor in the existing screw conveyor, thereby affecting the conveying of the dregs, increasing the abrasion of the existing screw conveyor and seriously affecting the conveying efficiency of the existing screw conveyor.
Disclosure of Invention
The invention aims to provide a screw conveyor for conveying earth pressure balance shield earth slag, which can cut a longer plastic drain pipe entering the screw conveyor into a plurality of sections of plastic drain pipes with shorter lengths, thereby avoiding the problems of blockage of the screw conveyor, aggravation of abrasion of the screw conveyor and serious influence on the conveying efficiency of the screw conveyor caused by the plastic drain pipes.
In order to achieve the purpose, the invention provides a screw conveyor for conveying earth pressure balance shield earth slag, wherein the screw conveyor for conveying earth pressure balance shield earth slag comprises a screw shaft and a cylinder body, the screw shaft is coaxially arranged in the cylinder body in a penetrating manner, the first end of the cylinder body is open to form an inlet, and a cutting and grinding assembly is arranged between the inner wall of the cylinder body close to the inlet and a blade of the screw shaft.
The screw conveyor for conveying earth pressure balance shield earth slag comprises a plurality of groups of first cutting and grinding parts arranged on the inner wall of a barrel and a plurality of groups of second cutting and grinding parts arranged on the blade edges of the screw shaft, wherein the first cutting and grinding parts are arranged at intervals in the circumferential direction of the barrel, each group of first cutting and grinding parts comprises a plurality of first cutting and grinding blocks arranged at intervals in the axial direction of the barrel, the plurality of groups of second cutting and grinding parts are arranged at intervals in the blade edges of the screw shaft, each group of second cutting and grinding parts comprises a lug and two second cutting and grinding blocks, the lug is arranged on the blade edge of the screw shaft in a protruding mode, and the two second cutting and grinding blocks are arranged on two sides of the lug in the circumferential direction of the barrel.
The screw conveyor for conveying the earth pressure balance shield earth slag as described above, wherein the projections of the first cutting blocks of every two adjacent groups of the first cutting and grinding pieces on the axis of the screw shaft are alternately arranged.
The screw conveyor for conveying earth pressure balance shield earth slag as described above, wherein one side surfaces of the two second cutting and grinding blocks of each group of second cutting and grinding pieces far away from the screw shaft protrude out of one side surface of the corresponding projection far away from the screw shaft, or one side surfaces of the two second cutting and grinding blocks and the projection of each group of second cutting and grinding pieces far away from the screw shaft form a smooth arc surface.
The screw conveyor for earth pressure balance shield earth slag conveying is characterized in that the distance between the surface of one side, facing the screw shaft, of each first cutting grinding block and the central axis of the screw shaft is smaller than the distance between the surface of one side, far away from the screw shaft, of each second cutting grinding block and the central axis of the screw shaft.
The screw conveyor for conveying the earth pressure balance shield earth slag comprises a screw shaft, a first cutting and grinding block, a second cutting and grinding block and a second cutting and grinding block, wherein the first cutting and grinding block is welded and fixed on the inner wall of the cylinder body, and the second cutting and grinding block is welded and fixed on the edge of a blade of the screw shaft.
The screw conveyor for conveying the earth pressure balance shield earth slag comprises a barrel body, a plurality of barrel sections and a cutting and grinding assembly, wherein the barrel body comprises the barrel sections which are detachably connected in sequence, and the cutting and grinding assembly is arranged between at least one barrel section which is closest to the first end of the barrel body and the screw shaft.
The screw conveyor for conveying the earth pressure balance shield earth slag as described above, wherein a second cutting and grinding piece is arranged on a part of the blade edge of the screw shaft corresponding to the barrel section on the inner wall of which the first cutting and grinding piece is arranged.
The screw conveyor for conveying the soil residues of the soil pressure balance shield is characterized in that a material guide hopper is arranged at the inlet of the cylinder.
The spiral conveyor for conveying the soil pressure balance shield soil residues is characterized in that the bottom of the second end of the cylinder is provided with an outlet.
Compared with the prior art, the invention has the following beneficial effects:
according to the screw conveyor for conveying the soil pressure balance shield soil residues, the cutting and grinding assembly is arranged between the inner wall of the barrel body close to the inlet and the blades of the screw shaft, so that a long plastic drain pipe entering the screw conveyor can be cut into a plurality of sections of plastic drain pipes with short lengths, and the problems that the screw conveyor is blocked, the screw conveyor is accelerated to be worn, the conveying efficiency of the screw conveyor is seriously influenced and the like due to the plastic drain pipes are solved.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic structural diagram of a screw conveyor for earth pressure balance shield earth slag conveying provided by the invention;
fig. 2 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.
The reference numbers indicate:
1. a screw shaft;
11. a blade;
2. a barrel;
21. a shell ring;
22. an inlet;
23. an outlet;
24. a material guide hopper;
3. cutting and grinding the component;
31. a first cutting and grinding block;
32. a bump;
33. and a second cutting and grinding block.
Detailed Description
In order to clearly understand the technical solution, the purpose and the effect of the present invention, a detailed description of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides a screw conveyor for earth pressure balance shield earth slag conveying, wherein the screw conveyor for earth pressure balance shield earth slag conveying comprises a screw shaft 1 and a barrel 2, the screw shaft 1 is coaxially arranged inside the barrel 2, a first end of the barrel 2 is open to form an inlet 22, earth slag enters the barrel 2 from the inlet 22 at the first end of the barrel 2 and is conveyed to a second end of the barrel 2 to be discharged under the action of the screw shaft 1, so as to realize the earth slag conveying, a cutting and grinding assembly 3 is arranged between the inner wall of the barrel 2 near the inlet 22 and a blade 11 of the screw shaft 1, so that a plastic drain pipe mixed in the earth slag entering the barrel 2 is cut into small sections by the cutting and grinding assembly 3 and is conveyed to the second end of the barrel 2 along with the rotation of the screw shaft 1, and the plastic drain pipe is cut into small sections to convey, so as to effectively avoid the problems of blocking the screw conveyor, aggravating the abrasion of the screw conveyor, seriously affecting the conveying efficiency of the screw conveyor, etc. caused by the plastic drain pipe.
Further, as shown in fig. 1, the screw conveyor for conveying earth pressure balance shield earth slag provided by the invention comprises a cutting and grinding assembly 3, wherein the cutting and grinding assembly comprises a plurality of groups of first cutting and grinding pieces arranged on the inner wall of a cylinder body 2 and a plurality of groups of second cutting and grinding pieces arranged on the edges of blades 11 of a screw shaft 1, and the first cutting and grinding pieces and the second cutting and grinding pieces interact to cut a plastic drain pipe entering the cylinder body 2;
the plurality of groups of first cutting and grinding pieces are uniformly arranged along the circumferential direction of the barrel body 2 at intervals, each group of first cutting and grinding pieces comprise a plurality of first cutting and grinding blocks 31 which are uniformly arranged along the axial direction of the barrel body 2 at intervals, the plurality of groups of second cutting and grinding pieces are uniformly arranged along the edge of the blade 11 of the screw shaft 1 at intervals, each group of second cutting and grinding pieces comprise a lug 32 and two second cutting and grinding blocks 33, the lug 32 is arranged on the edge of the blade 11 of the screw shaft 1 in a protruding mode, the two second cutting and grinding blocks 33 are arranged on two sides of the lug 32 along the circumferential direction of the barrel body 2, and in the rotating process of the screw shaft 1, each group of second cutting and grinding pieces pass through the two adjacent first cutting and grinding blocks 31 of one group, so that the first cutting and grinding pieces are matched with each other to cut the plastic drain pipe.
Furthermore, as shown in fig. 1, the screw conveyor for earth pressure balance shield earth slag transportation provided by the present invention, wherein the projections of the first cutting blocks 31 of every two adjacent sets of first cutting and grinding pieces on the axis of the screw shaft 1 are arranged at intervals in a staggered manner, or it can be understood that the first cutting blocks 31 of each set of first cutting and grinding pieces are arranged in a spiral line at intervals in a surrounding manner, so as to cooperate with the blades 11 of the screw shaft 1 in a spiral surrounding manner, so as to ensure the cutting effect.
Further, the present invention provides a screw conveyor for earth pressure balance shield earth slag conveying, wherein one side surface of the two second cutting and grinding blocks 33 of each set of second cutting and grinding pieces, which is far away from the screw shaft 1, protrudes out of one side surface of the corresponding projection 32, which is far away from the screw shaft 1, or, as shown in fig. 2, one side surface of the two second cutting and grinding blocks 33 and the projection 32 of each set of second cutting and grinding pieces, which is far away from the screw shaft 1, forms a smooth arc surface, so that the plastic drain pipe is cut by the two second cutting and grinding blocks 33 during the rotation of the screw shaft 1 without abrasion of the projection 32.
Preferably, as shown in fig. 2, the screw conveyor for earth pressure balance shield earth slag conveying provided by the invention, wherein the distance between the side surface of each first cutting and grinding block 31 facing the screw shaft 1 and the central axis of the screw shaft 1 is smaller than the distance between the side surface of each second cutting and grinding block 33 away from the screw shaft 1 and the central axis of the screw shaft 1, it can be understood that, in the process of cutting the plastic drain pipe, each group of second cutting and grinding pieces extends between two adjacent first cutting and grinding blocks 31, and each first cutting and grinding block 31 extends between two groups of adjacent second cutting and grinding pieces, so that the cutting effect of the cutting and grinding assembly 3 can be effectively ensured.
Preferably, the screw conveyor for conveying earth slag of the earth pressure balance shield is provided by the invention, wherein each first cutting and grinding block 31 is welded and fixed on the inner wall of the cylinder body 2, and each second cutting and grinding block 33 is welded and fixed on the edge of the blade 11 of the screw shaft 1, so as to ensure the firmness of installation of the first cutting and grinding block 31 and the second cutting and grinding block 33.
Preferably, as shown in fig. 1, the screw conveyor for earth pressure balance shield earth slag conveying provided by the invention, wherein the cylinder 2 comprises a plurality of sections of cylinder sections 21 which are detachably connected in sequence, each section of cylinder section 21 can be detachably connected by a flange and a bolt, the cutting and grinding assembly 3 is arranged between at least one section of cylinder section 21 closest to the first end of the cylinder 2 and the screw shaft 1, namely, the cutting and grinding assembly 3 is arranged between at least one section of cylinder section 21 and the screw shaft 1, or the cutting and grinding assembly 3 can be arranged between a plurality of sections of cylinder sections 21 arranged at intervals and the screw shaft 1, so as to cut the plastic drain pipe to be smaller.
Preferably, as shown in fig. 1, the screw conveyor for conveying earth pressure balance shield earth slag provided by the present invention, wherein the screw shaft 1 is an integral body, and the portion of the edge of the blade 11 of the screw shaft 1 corresponding to the barrel section 21 provided with the first cutting and grinding member on the inner wall is provided with the second cutting and grinding member, that is, the second cutting and grinding member is not required to be provided at the edge of the whole blade 11 of the screw shaft 1, and only the second cutting and grinding member is provided at the edge of one part of the blade 11.
Preferably, as shown in fig. 1, the screw conveyor for earth pressure balance shield earth slag transportation provided by the invention, wherein a material guide hopper 24 is arranged at an inlet 22 of the cylinder 2, so that the earth slag can enter the inside of the cylinder 2.
Preferably, as shown in fig. 1, the screw conveyor for earth pressure balance shield earth slag conveying provided by the invention, wherein an outlet 23 is opened at the bottom of the second end of the cylinder 2, so as to facilitate the discharge of the earth slag from the cylinder 2.
Compared with the prior art, the invention has the following beneficial effects:
according to the screw conveyor for conveying the soil pressure balance shield soil residues, the cutting and grinding assembly is arranged between the inner wall of the barrel body close to the inlet and the blades of the screw shaft, so that a long plastic drain pipe entering the screw conveyor can be cut into a plurality of sections of plastic drain pipes with short lengths, and the problems that the screw conveyor is blocked, the screw conveyor is abraded seriously and the conveying efficiency of the screw conveyor is seriously influenced due to the plastic drain pipes are solved.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.
Claims (8)
1. The screw conveyor for conveying the soil pressure balance shield soil residues is characterized by comprising a screw shaft and a barrel, wherein the screw shaft coaxially penetrates through the barrel, the first end of the barrel is open to form an inlet, and a cutting and grinding assembly is arranged between the inner wall of the barrel close to the inlet and a blade of the screw shaft;
the cutting and grinding assembly comprises a plurality of groups of first cutting and grinding pieces arranged on the inner wall of the barrel body and a plurality of groups of second cutting and grinding pieces arranged on the edge of the blade of the screw shaft, the plurality of groups of first cutting and grinding pieces are uniformly arranged at intervals along the circumferential direction of the barrel body, and the plurality of groups of second cutting and grinding pieces are uniformly arranged at intervals along the edge of the blade of the screw shaft;
each group of the first cutting and grinding pieces comprises a plurality of first cutting and grinding blocks which are uniformly arranged along the axial direction of the cylinder at intervals, each group of the second cutting and grinding pieces comprises a lug and two second cutting and grinding blocks, the lug is convexly arranged on the edge of a blade of the screw shaft, the two second cutting and grinding blocks are positioned on two sides of the lug along the circumferential direction of the cylinder, and each group of the second cutting and grinding pieces passes through the space between two adjacent first cutting and grinding blocks in one group in the rotating process of the screw shaft;
the projections of the first cutting and grinding blocks of every two adjacent groups of the first cutting and grinding pieces on the axis of the spiral shaft are arranged at intervals in a staggered mode.
2. The screw conveyor for earth pressure balance shield earth slag conveying according to claim 1, wherein one side surfaces of the two second cutting and grinding blocks of each group of the second cutting and grinding pieces, which are far away from the screw shaft, protrude out of one side surface of the corresponding projection, which is far away from the screw shaft, or one side surfaces of the two second cutting and grinding blocks and the projection of each group of the second cutting and grinding pieces, which are far away from the screw shaft, form a smooth arc surface.
3. The screw conveyor for earth pressure balance shield earth slag conveying according to any one of claims 1 to 2, wherein the distance between the surface of one side of each first cutting block facing the screw shaft and the central axis of the screw shaft is smaller than the distance between the surface of one side of each second cutting block away from the screw shaft and the central axis of the screw shaft.
4. The screw conveyor for earth pressure balance shield earth slag conveying according to any one of claims 1-2, wherein each first cutting block is welded and fixed on the inner wall of the cylinder body, and each second cutting block is welded and fixed on the blade edge of the screw shaft.
5. The screw conveyor for earth pressure balance shield earth slag conveying according to claim 1, wherein the cylinder comprises a plurality of sections of cylinder sections which are detachably connected in sequence, and the cutting and grinding assembly is arranged between at least one section of the cylinder section which is closest to the first end of the cylinder and the screw shaft.
6. The screw conveyor for earth pressure balance shield earth slag conveying according to claim 5, wherein a second cutting and grinding piece is provided on a blade edge of the screw shaft at a portion corresponding to the barrel section on which the first cutting and grinding piece is provided on the inner wall.
7. The screw conveyor for earth pressure balance shield earth slag conveying according to claim 1, wherein a guide hopper is arranged at an inlet of the cylinder.
8. The screw conveyor for earth pressure balance shield earth slag conveying according to claim 1, wherein an outlet is formed in the bottom of the second end of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110116607.6A CN112727492B (en) | 2021-01-28 | 2021-01-28 | A screw conveyer that is used for earth pressure balance shield to construct soil sediment and carries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110116607.6A CN112727492B (en) | 2021-01-28 | 2021-01-28 | A screw conveyer that is used for earth pressure balance shield to construct soil sediment and carries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112727492A CN112727492A (en) | 2021-04-30 |
| CN112727492B true CN112727492B (en) | 2023-02-24 |
Family
ID=75594357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110116607.6A Active CN112727492B (en) | 2021-01-28 | 2021-01-28 | A screw conveyer that is used for earth pressure balance shield to construct soil sediment and carries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112727492B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0506126A1 (en) * | 1991-03-27 | 1992-09-30 | Kawasaki Jukogyo Kabushiki Kaisha | Crushing member of gyratory crusher |
| JPH1037683A (en) * | 1996-07-24 | 1998-02-10 | Okumura Corp | Gravel crusher |
| JP2005188263A (en) * | 2003-12-26 | 2005-07-14 | Okumura Corp | Excavation earth carrying screw conveyor |
| JP2010077631A (en) * | 2008-09-25 | 2010-04-08 | Okumura Corp | Soil removing device for shield machine |
| CN210003289U (en) * | 2019-05-23 | 2020-01-31 | 扬州地龙机械有限公司 | push bench |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207463349U (en) * | 2017-09-22 | 2018-06-08 | 安吉高纯蒙脱石有限公司 | A kind of pulverizer |
-
2021
- 2021-01-28 CN CN202110116607.6A patent/CN112727492B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0506126A1 (en) * | 1991-03-27 | 1992-09-30 | Kawasaki Jukogyo Kabushiki Kaisha | Crushing member of gyratory crusher |
| JPH1037683A (en) * | 1996-07-24 | 1998-02-10 | Okumura Corp | Gravel crusher |
| JP2005188263A (en) * | 2003-12-26 | 2005-07-14 | Okumura Corp | Excavation earth carrying screw conveyor |
| JP2010077631A (en) * | 2008-09-25 | 2010-04-08 | Okumura Corp | Soil removing device for shield machine |
| CN210003289U (en) * | 2019-05-23 | 2020-01-31 | 扬州地龙机械有限公司 | push bench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112727492A (en) | 2021-04-30 |
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