CN110869583A - Screw conveyor and shield tunneling machine - Google Patents

Screw conveyor and shield tunneling machine Download PDF

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Publication number
CN110869583A
CN110869583A CN201880044912.5A CN201880044912A CN110869583A CN 110869583 A CN110869583 A CN 110869583A CN 201880044912 A CN201880044912 A CN 201880044912A CN 110869583 A CN110869583 A CN 110869583A
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CN
China
Prior art keywords
auger
screw conveyor
present
center line
helical
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.)
Granted
Application number
CN201880044912.5A
Other languages
Chinese (zh)
Other versions
CN110869583B (en
Inventor
小田诚
伊藤隆雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dizhong Space Development Co ltd
Original Assignee
Kawasaki Jukogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Publication of CN110869583A publication Critical patent/CN110869583A/en
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Publication of CN110869583B publication Critical patent/CN110869583B/en
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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

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  • 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 auger; and a central shaft extending along a center line of the auger and formed in a spiral shape of the same phase as the auger. Another aspect of the screw conveyor is a belt screw conveyor including: a helical auger; and a plurality of protrusions provided at an inner circumferential surface of the auger and extending to a center line of the auger.

Description

Screw conveyor and shield tunneling machine
Technical Field
The invention relates to a screw conveyor and a shield tunneling machine comprising the screw conveyor.
Background
As the screw conveyor, there are a belt-shaft screw conveyor in which a screw 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-
Disclosure of Invention
Problems to be solved by the invention
However, the belt-type screw conveyor is formed with a through hole in the center of the auger as viewed in the axial direction. Therefore, when the transported material contains a large amount of moisture, 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 auger; and a central shaft extending along a center line of the auger and formed in a spiral shape of the same phase as the auger.
According to the above configuration, since the central shaft is present, the through hole is not formed in the center of the auger when the screw 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 auger, the conveyed material can be made to flow at the same timing as at the auger 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 auger. According to this structure, for example, if the center shaft and the auger are integrally manufactured by casting, it is not necessary to join the center shaft and the auger, and the cost can be reduced.
For example, in a longitudinal section including the center line of the auger, a minimum distance from the center line of the auger to the outer circumferential surface of the center shaft may be 1/20 or less of the outer diameter of the auger.
In addition, another aspect of the present invention is a belt-type screw conveyor including: a helical auger; and a plurality of protrusions provided to an inner circumferential surface of the auger and extending to a center line of the auger.
According to the above-described structure, when the screw conveyor is viewed from the axial direction, the through hole is not formed in the center of the auger. 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 auger, and a distance from a center line of the auger to an inner circumferential surface of the auger is substantially zero.
According to the above-described structure, when the screw conveyor is viewed from the axial direction, substantially no through hole is formed in the center of the auger. 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 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 auger 5; and a central shaft 4 extending along the centre line L of the auger 5. For example, the central shaft 4 and the auger are joined together by welding.
The central shaft 4 is formed in a spiral shape having the same phase as the auger 5. In other words, in a longitudinal section including the center line L of the auger 5, the central shaft 4 undulates in a convex manner toward the section portion of the auger 5.
Preferably, in a vertical cross section including the center line L of the auger 5 as shown in fig. 1B, the minimum distance D2 from the center line L of the auger 5 to the outer circumferential surface 41 of the center shaft 4 is 1/20 or less of the outer diameter D1 of the auger 5. More preferably, the minimum distance D2 from the center line L of the auger 5 to the outer peripheral surface 41 of the center shaft 4 is 1/40 or less of the outer diameter D1 of the auger 5.
According to the present embodiment, since the central shaft 4 is present, no through hole is formed in the center of the auger 5 when the screw conveyor 1A is viewed from the axial direction. 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 auger 5, the conveyed material can be made to flow at the same timing as at the spiral auger 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 in which a center shaft 4 and an auger 5 are integrated in appearance.
Specifically, in the present embodiment, the outer peripheral surface 41 of the center shaft 4 smoothly connects the two blade surfaces 51 and 52 (51: conveying surface and 52: non-conveying surface) of the auger 5. In the illustrated example, the outer peripheral surface of the center shaft 4 and the two blade surfaces 51 and 52 of the auger 5 form a hemispherical curved surface in a longitudinal section including the center line L of the auger 5.
With the structure as in the present embodiment, if the center shaft 4 and the auger 5 are integrally manufactured by casting, for example, it is not necessary to join the center shaft 4 and the auger, 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 auger 5 and a plurality of projections 6 provided on an inner circumferential surface of the auger 5. Each projection 6 extends from the inner peripheral surface of the auger 5 to the centerline L of the auger 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 auger 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 auger 5. In the present embodiment, the distance from the center line L of the auger 5 to the inner circumferential surface of the auger 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 auger 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 screw drill;
51. 52: a blade surface;
6: and (4) a protrusion.

Claims (6)

1. A screw conveyor, wherein,
the screw conveyor has:
a helical auger; and
a central shaft extending along a centerline of the auger and formed in a helical shape of the same phase as the auger.
2. The screw conveyor according to claim 1,
the outer peripheral surface of the central shaft is smoothly connected to both blade surfaces of the auger.
3. The screw conveyor according to claim 1 or 2,
in a longitudinal section including the center line of the auger, a minimum distance from the center line of the auger to the outer peripheral surface of the center shaft is 1/20 or less of an outer diameter of the auger.
4. A screw conveyor is a belt screw conveyor, wherein,
the screw conveyor has:
a helical auger; and
a plurality of protrusions provided to an inner circumferential surface of the auger and extending to a center line of the auger.
5. A screw conveyor is a belt screw conveyor, wherein,
the screw conveyor has a helical auger,
a distance from a centerline of the auger to an inner circumferential surface of the auger is substantially zero.
6. A shield tunneling machine having the screw conveyor according to any one of claims 1 to 5.
CN201880044912.5A 2017-07-14 2018-07-13 Screw conveyor and shield tunneling machine Active CN110869583B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2017137814A JP7033403B2 (en) 2017-07-14 2017-07-14 Screw conveyor and shield excavator
JP2017-137814 2017-07-14
PCT/JP2018/026507 WO2019013328A1 (en) 2017-07-14 2018-07-13 Screw conveyor and shield tunneling machine

Publications (2)

Publication Number Publication Date
CN110869583A true CN110869583A (en) 2020-03-06
CN110869583B CN110869583B (en) 2023-01-10

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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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802551A (en) * 1971-02-17 1974-04-09 S Somers Flexible tubular conveyor
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
JP2000191127A (en) * 1998-12-25 2000-07-11 Kirin Brewery Co Ltd Device for carrying container with constant interval
CN2843612Y (en) * 2005-10-09 2006-12-06 李俊 The pusher lotus seeds hulling machine of circular arc leading screw
JP2007327246A (en) * 2006-06-08 2007-12-20 Mitsubishi Heavy Industries Tunneling Machinery & Geotechnology Co Ltd Tunnel excavator and tunnel excavation method
JP2012122259A (en) * 2010-12-08 2012-06-28 Okumura Corp Soil discharge device for 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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP4246314B2 (en) * 1999-02-12 2009-04-02 澁谷工業株式会社 Screw conveyor device
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

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802551A (en) * 1971-02-17 1974-04-09 S Somers Flexible tubular conveyor
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
JP2000191127A (en) * 1998-12-25 2000-07-11 Kirin Brewery Co Ltd Device for carrying container with constant interval
CN2843612Y (en) * 2005-10-09 2006-12-06 李俊 The pusher lotus seeds hulling machine of circular arc leading screw
JP2007327246A (en) * 2006-06-08 2007-12-20 Mitsubishi Heavy Industries Tunneling Machinery & Geotechnology Co Ltd Tunnel excavator and tunnel excavation method
JP2012122259A (en) * 2010-12-08 2012-06-28 Okumura Corp Soil discharge device for 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

Also Published As

Publication number Publication date
KR102427744B1 (en) 2022-08-01
CN110869583B (en) 2023-01-10
GB2578392B (en) 2022-03-09
DE112018003616T8 (en) 2020-07-02
JP7033403B2 (en) 2022-03-10
KR20200022483A (en) 2020-03-03
WO2019013328A1 (en) 2019-01-17
GB202000529D0 (en) 2020-02-26
GB2578392A (en) 2020-05-06
DE112018003616T5 (en) 2020-05-20
JP2019019518A (en) 2019-02-07

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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

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