CN110869583B - Screw conveyor and shield tunneling machine - Google Patents
Screw conveyor and shield tunneling machine Download PDFInfo
- Publication number
- CN110869583B CN110869583B CN201880044912.5A CN201880044912A CN110869583B CN 110869583 B CN110869583 B CN 110869583B CN 201880044912 A CN201880044912 A CN 201880044912A CN 110869583 B CN110869583 B CN 110869583B
- Authority
- CN
- China
- Prior art keywords
- blade
- screw conveyor
- helical
- helical blade
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005641 tunneling Effects 0.000 title claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003466 welding Methods 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/02—Screw or rotary spiral conveyors for articles
- B65G33/04—Screw or rotary spiral conveyors for articles conveyed between a single screw and guiding means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
- B65G33/265—Screws with a continuous helical surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2812/00—Indexing codes relating to the kind or type of conveyors
- B65G2812/05—Screw-conveyors
- B65G2812/0505—Driving means, constitutive elements or auxiliary devices
- B65G2812/0511—Conveyor screws
- B65G2812/0527—Conveyor screws characterised by the configuration, e.g. hollow, toothed
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Screw Conveyors (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The screw conveyor of one aspect has: a helical screw blade; and a central shaft extending along a center line of the helical blade and formed in a helical shape of the same phase as the helical blade. Another aspect of the screw conveyor is a belt screw conveyor including: a helical screw blade; and a plurality of protrusions provided on an inner circumferential surface of the helical blade and extending to a center line of the helical blade.
Description
Technical Field
The invention relates to a screw conveyor and a shield tunneling machine comprising the screw conveyor.
Background
As the screw conveyors, there are a belt-shaft screw conveyor in which a helical screw blade is attached to a linear central shaft, and a belt-type screw conveyor having no central shaft (for example, see patent document 1). Belt screw conveyors have the advantage of being able to convey larger pieces (e.g. stone blocks) than shaft screw conveyors.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2011-69157
Disclosure of Invention
Problems to be solved by the invention
However, the belt-type screw conveyor has a through hole formed in the center of the screw blade when viewed from the axial direction. Therefore, when the transported material contains a large amount of water, there is a problem that the water-stopping property is low.
Accordingly, an object of the present invention is to provide a screw conveyor capable of conveying a large block and having high water stopping performance, and a shield tunneling machine including the screw conveyor.
Means for solving the problems
In order to solve the above problem, a screw conveyor according to an aspect of the present invention includes: a helical screw blade; and a central shaft extending along a center line of the helical blade and formed in a helical shape of the same phase as the helical blade.
According to the above configuration, since the central shaft is present, the through hole is not formed in the center of the spiral blade when the spiral conveyor is viewed from the axial direction. Therefore, water stopping performance can be improved. Further, since the central axis is spiral, a larger block can be conveyed than in the case where the central axis is linear as in the conventional case. Further, since the spiral shape of the central axis is in the same phase as the spiral blade, the transported material can be made to flow at the same timing as the spiral blade even at a position along the central axis.
The outer circumferential surface of the central shaft may be smoothly connected to both blade surfaces of the helical blade. According to this structure, for example, if the center shaft and the helical blade are integrally manufactured by casting, the center shaft and the helical blade do not need to be joined, and the cost can be reduced.
For example, in a longitudinal section including a center line of the helical blade, a minimum distance from the center line of the helical blade to the outer peripheral surface of the central shaft may be 1/20 or less of an outer diameter of the helical blade.
In addition, another aspect of the present invention is a belt-type screw conveyor including: a helical screw blade; and a plurality of protrusions provided on an inner circumferential surface of the helical blade and extending to a center line of the helical blade.
According to the above configuration, when the screw conveyor is viewed from the axial direction, the through hole is not formed in the center of the screw blade. Therefore, the advantage of the belt screw conveyor that a large block can be conveyed can be exerted, and the water stopping performance can be improved.
In addition, a screw conveyor according to another aspect of the present invention is a belt screw conveyor including a helical screw blade, and a distance from a center line of the screw blade to an inner circumferential surface of the screw blade is substantially zero.
According to the above configuration, when the screw conveyor is viewed from the axial direction, substantially no through hole is formed in the center of the screw blade. Therefore, the advantage of the belt screw conveyor that a large block can be conveyed can be exerted, and the water stopping performance can be improved.
The shield tunneling machine of the present invention is characterized by including the screw conveyor described above.
Effects of the invention
According to the present invention, a screw conveyor capable of conveying a large block and having high water stopping performance is provided.
Drawings
Fig. 1A is a side view of a screw conveyor according to embodiment 1 of the present invention, and fig. 1B is a cross-sectional view of the screw conveyor according to embodiment 1 of the present invention.
Fig. 2A is a side view of the screw conveyor according to embodiment 2 of the present invention, and fig. 2B is a cross-sectional view of the screw conveyor according to embodiment 2 of the present invention.
Fig. 3A is a side view of a screw conveyor according to embodiment 3 of the present invention, and fig. 3B is a cross-sectional view of the screw conveyor according to embodiment 3 of the present invention.
Fig. 4 is a perspective view of the screw in embodiment 3.
Fig. 5A is a side view of the screw conveyor according to embodiment 4 of the present invention, and fig. 5B is a cross-sectional view of the screw conveyor according to embodiment 4 of the present invention.
Fig. 6A is a side view of a conventional shaft-type screw conveyor, and fig. 6B is a cross-sectional view of the conventional shaft-type screw conveyor.
Detailed Description
(embodiment 1)
Fig. 1A and 1B show a screw conveyor 1A according to embodiment 1 of the present invention. The screw conveyor 1A includes a screw 3A and a cylindrical casing 2 accommodating the screw 3A. The screw conveyor 1A is mounted on a shield tunneling machine, for example.
The screw 3A includes: a helical screw blade 5; and a central shaft 4 extending along the center line L of the helical blade 5. For example, the central shaft 4 and the helical blade are joined together by welding.
The central shaft 4 is formed in a spiral shape having the same phase as the spiral blade 5. In other words, in a vertical cross section including the center line L of the helical blade 5, the central axis 4 undulates so as to be convex toward the cross-sectional portion of the helical blade 5.
Preferably, in a vertical cross section including the center line L of the helical blade 5 as shown in fig. 1B, the minimum distance D2 from the center line L of the helical blade 5 to the outer peripheral surface 41 of the central shaft 4 is 1/20 or less of the outer diameter D1 of the helical blade 5. More preferably, the minimum distance D2 from the center line L of the helical blade 5 to the outer peripheral surface 41 of the central shaft 4 is 1/40 or less of the outer diameter D1 of the helical blade 5.
According to the present embodiment, since the central shaft 4 is present, when the screw conveyor 1A is viewed from the axial direction, no through hole is formed in the center of the screw blade 5. Therefore, water stopping performance can be improved. Further, since the central shaft 4 is helical, it is possible to convey a larger block 10 than the conventional screw conveyor 100 having a linear central shaft as shown in fig. 6A and 6B. Further, since the spiral shape of the central shaft 4 is in the same phase as the spiral blade 5, the conveyed material can be made to flow at the same timing as the spiral blade 5 even at a position along the central shaft 4.
(embodiment 2)
Fig. 2A and 2B show a screw conveyor 1B according to embodiment 2 of the present invention. In this embodiment and embodiments 3 and 4 described later, the same components as those in embodiment 1 are denoted by the same reference numerals, and redundant description thereof is omitted.
The screw conveyor 1B of the present embodiment includes a screw 3B having a central shaft 4 and a screw blade 5 integrated with each other in appearance.
Specifically, in the present embodiment, the outer peripheral surface 41 of the central shaft 4 smoothly connects the two blade surfaces 51 and 52 (51: conveying surfaces and 52: non-conveying surfaces) of the helical blade 5. In the illustrated example, the outer peripheral surface of the central shaft 4 and the two blade surfaces 51 and 52 of the helical blade 5 form a hemispherical curved surface in a vertical cross section including the center line L of the helical blade 5.
With the structure as in the present embodiment, if the center shaft 4 and the helical blade 5 are integrally manufactured by casting, for example, it is not necessary to join the center shaft 4 and the helical blade, and the cost can be reduced.
(embodiment 3)
Fig. 3A, 3B, and 4 show a screw conveyor 1C according to embodiment 3 of the present invention.
The screw conveyor 1C of the present embodiment is a belt screw conveyor, and includes a screw 3C without a central shaft 4.
The screw 3C includes a helical screw blade 5 and a plurality of projections 6 provided on an inner peripheral surface of the screw blade 5. Each protrusion 6 extends from the inner peripheral surface of the helical blade 5 to the center line L of the helical blade 5. That is, as shown in fig. 4, the protrusions 6 are arranged in such a manner as to form a spiral step.
With the configuration as in the present embodiment, when the screw conveyor 1C is viewed from the axial direction, no through hole is formed in the center of the screw blade 5. Therefore, the advantage of the belt screw conveyor that a large block 10 can be conveyed can be achieved, and the water stopping performance can be improved.
(embodiment 4)
Fig. 5A and 5B show a screw conveyor 1D according to embodiment 5 of the present invention.
The screw conveyor 1D of the present embodiment is a belt screw conveyor, and includes a screw 3D without a central shaft 4.
The screw 3D includes a helical screw blade 5. In the present embodiment, the distance from the center line L of the helical blade 5 to the inner peripheral surface of the helical blade 5 is substantially zero (e.g., 10mm or less).
With the configuration as in the present embodiment, when the screw conveyor 1D is viewed from the axial direction, substantially no through hole is formed in the center of the screw blade 5. Therefore, the advantage of the belt screw conveyor that a large block 10 can be conveyed can be exerted, and the water stopping performance can be improved.
(other embodiments)
The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.
Description of the reference symbols
1A to 1D: a screw conveyor;
4: a central shaft;
5: a helical blade;
51. 52: a blade surface;
6: and (4) a protrusion.
Claims (3)
1. A screw conveyor, wherein,
the screw conveyor has:
a helical screw blade; and
a central shaft integrated with the helical blade, the central shaft extending along a center line of the helical blade and being formed in a helical shape having the same phase as the helical blade as a whole,
in a cross section including a center line of the helical blade, the center axis undulates so as to be entirely convex toward the cross-sectional portion of the helical blade while extending along the center line of the helical blade, two adjacent blade surfaces of the helical blade smoothly connect to an outer peripheral surface of the center axis between the two adjacent blade surfaces to form a hemispherical curved surface, and the other blade surface than the two adjacent blade surfaces exists on a convex side of the hemispherical curved surface.
2. The screw conveyor according to claim 1,
in a longitudinal section including a center line of the helical blade, a minimum distance from the center line of the helical blade to an outer peripheral surface of the central shaft is 1/20 or less of an outer diameter of the helical blade.
3. A shield tunneling machine having the screw conveyor according to claim 1 or 2.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-137814 | 2017-07-14 | ||
| JP2017137814A JP7033403B2 (en) | 2017-07-14 | 2017-07-14 | Screw conveyor and shield excavator |
| PCT/JP2018/026507 WO2019013328A1 (en) | 2017-07-14 | 2018-07-13 | Screw conveyor and shield tunneling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110869583A CN110869583A (en) | 2020-03-06 |
| CN110869583B true CN110869583B (en) | 2023-01-10 |
Family
ID=65001394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880044912.5A Active CN110869583B (en) | 2017-07-14 | 2018-07-13 | Screw conveyor and shield tunneling machine |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP7033403B2 (en) |
| KR (1) | KR102427744B1 (en) |
| CN (1) | CN110869583B (en) |
| DE (1) | DE112018003616T8 (en) |
| GB (1) | GB2578392B (en) |
| WO (1) | WO2019013328A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000191127A (en) * | 1998-12-25 | 2000-07-11 | Kirin Brewery Co Ltd | Device for carrying container with constant interval |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH538410A (en) * | 1971-02-17 | 1973-06-30 | L Somers S Brice | Flexible device for the transport of granular, powdery or fluid products |
| CH588987A5 (en) * | 1975-07-01 | 1977-06-30 | Straub Immanuel | |
| JPS5746520U (en) * | 1980-08-30 | 1982-03-15 | ||
| JPS595697U (en) * | 1982-07-05 | 1984-01-14 | 前田建設工業株式会社 | Screw-type earth removal device equipped with water-stop blades to prevent earth and sand from flowing out in the earth pressure shield method |
| JPS62268496A (en) * | 1986-05-14 | 1987-11-21 | 日立造船株式会社 | Earth-removing device in shielding excavator |
| SU1666408A1 (en) * | 1988-09-21 | 1991-07-30 | Тернопольский Филиал Львовского Политехнического Института Им.Ленинского Комсомола | Flexible screw conveyor |
| JPH11229780A (en) * | 1998-02-16 | 1999-08-24 | Komatsu Ltd | Screw conveyor device for tunnel excavator |
| JP4246314B2 (en) * | 1999-02-12 | 2009-04-02 | 澁谷工業株式会社 | Screw conveyor device |
| CN2843612Y (en) * | 2005-10-09 | 2006-12-06 | 李俊 | The pusher lotus seeds hulling machine of circular arc leading screw |
| JP4495114B2 (en) * | 2006-06-08 | 2010-06-30 | 三菱重工メカトロシステムズ株式会社 | Tunnel excavator and tunnel excavation method |
| IT1395809B1 (en) | 2009-09-28 | 2012-10-26 | Wam Spa | PERFECT COCHLEAE |
| JP2011069157A (en) | 2009-09-28 | 2011-04-07 | Ihi Corp | Gate device for earth removal port of screw conveyer |
| JP5600290B2 (en) | 2010-12-08 | 2014-10-01 | 株式会社奥村組 | Mud pressure shield machine |
| JP5746520B2 (en) * | 2011-03-02 | 2015-07-08 | 株式会社ブリヂストン | Pneumatic tire |
| CN206079016U (en) * | 2016-09-14 | 2017-04-12 | 姚燕 | Revolve and twist formula tube -shape pipe |
-
2017
- 2017-07-14 JP JP2017137814A patent/JP7033403B2/en active Active
-
2018
- 2018-07-13 DE DE112018003616.2T patent/DE112018003616T8/en active Active
- 2018-07-13 KR KR1020207002762A patent/KR102427744B1/en active IP Right Grant
- 2018-07-13 CN CN201880044912.5A patent/CN110869583B/en active Active
- 2018-07-13 GB GB2000529.4A patent/GB2578392B/en active Active
- 2018-07-13 WO PCT/JP2018/026507 patent/WO2019013328A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000191127A (en) * | 1998-12-25 | 2000-07-11 | Kirin Brewery Co Ltd | Device for carrying container with constant interval |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112018003616T8 (en) | 2020-07-02 |
| KR20200022483A (en) | 2020-03-03 |
| KR102427744B1 (en) | 2022-08-01 |
| JP7033403B2 (en) | 2022-03-10 |
| WO2019013328A1 (en) | 2019-01-17 |
| GB2578392A (en) | 2020-05-06 |
| CN110869583A (en) | 2020-03-06 |
| JP2019019518A (en) | 2019-02-07 |
| DE112018003616T5 (en) | 2020-05-20 |
| GB202000529D0 (en) | 2020-02-26 |
| GB2578392B (en) | 2022-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120170984A1 (en) | Ball end mill | |
| US9388856B2 (en) | Thrust ball bearing cage and thrust ball bearing | |
| AU2014203419A1 (en) | Horizontal chain link and steel link chain with such horizontal chain links | |
| CN110869583B (en) | Screw conveyor and shield tunneling machine | |
| US9855697B2 (en) | Wearing body for receiving a twin screw for extruding meltable material | |
| KR200489205Y1 (en) | Interlocking bearing | |
| SG152173A1 (en) | Conveyor, developer cartridge, and filling method | |
| CN109958771B (en) | Radial shaft sealing device | |
| CN107620752A (en) | With the anti-connector assembly assembly parts for jabbing feature | |
| EP2748477B1 (en) | Screw conveyor intermediate support | |
| CN105621069A (en) | Delivery pipe, delivery pipe utensil, and delivery device | |
| KR101777492B1 (en) | Chain | |
| CN110050147B (en) | Flat link chain | |
| JP5137566B2 (en) | Resin seal ring | |
| CN103939470B (en) | Bearing | |
| MX2020002837A (en) | Conveyor belt spiral overlay having intermediate loops. | |
| CN209777538U (en) | Spiral conveyor for transporting polyaluminium chloride | |
| EP3904243A1 (en) | Screw conveyor auger assembly method | |
| EP3279116A1 (en) | Conveyor chain | |
| US20160023849A1 (en) | Wing pulley for belt conveyor | |
| JP5987379B2 (en) | Screw conveyor | |
| JP2008156025A (en) | Part supply device | |
| CN105292908A (en) | Spring type tablet flow channel | |
| CN112740518A (en) | Rotor shaft arrangement for an electric machine | |
| JP2007182301A (en) | Roller device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211221 Address after: Osaka City, Osaka of Japan Applicant after: Dizhong Space Development Co.,Ltd. Address before: Japan Hyogo Prefecture Applicant before: KAWASAKI JUKOGYO Kabushiki Kaisha |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |