CN104265312A - Center cutter of shield tunneling machine - Google Patents
Center cutter of shield tunneling machine Download PDFInfo
- Publication number
- CN104265312A CN104265312A CN201410493229.3A CN201410493229A CN104265312A CN 104265312 A CN104265312 A CN 104265312A CN 201410493229 A CN201410493229 A CN 201410493229A CN 104265312 A CN104265312 A CN 104265312A
- Authority
- CN
- China
- Prior art keywords
- cutter
- limit
- center cutter
- center
- shield machine
- 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.)
- Pending
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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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a center cutter of a shield tunneling machine. The center cutter of the shield tunneling machine comprises a cutter seat, a center cutter body, four edge cutter seats and four side cutters; the cutter seat is in a shape of a circular plate; the center cutter is welded and fixed in the center of a base; the four edge cutter seats are welded and fixed to the periphery of the center cutter by a central symmetry manner; the four edge cutters are respectively fixed to the side surfaces of the four edge cutter seats through bolts and nuts; the edge cutters and the edge cutter seats form four cutter arms which mutually form included angles of 90 degrees. The center cutter of the shield tunneling machine has the advantages of being long in service life, stable to bear, high in tunneling efficiency, high in economy, small in manufacturing cost, and convenient to mount and use.
Description
Technical field
The present invention relates to the mechanical fitting of constructing tunnel equipment, refer to a kind of shield machine center cutter especially.
Background technology
At present in the construction of underground construction, the application of shield machine is more and more extensive, and cutter head, as one of the critical component of shield machine, will directly affect performance and the efficiency of shield machine.Center cutter is positioned at cutter foremost as shield machine, and there is very important effect in its application life to whole cutter disc system.And the application life of center cutter and the form of structure of himself and mounting method have direct relation.And the center cutter that existing shield machine adopts generally is welded on the cutterhead of shield machine, the form of structure of center cutter is generally fishtail, normal employing two tool arms, in one line, with cutter head center line for axis of symmetry, form axially symmetric structure, and all adopt and be welded and fixed, belong to non-dismountable connection, cause blade non-exchange, have to change whole center cutter after blade abrasion, cost is high, serious waste of resources.
Summary of the invention
The problem to be solved in the present invention is the deficiency overcome in background technology, provides a kind of shield machine center cutter, this shield machine center cutter, adopts blade demountable structure, and it is convenient to change, and has saved cost, and long service life.
For solving the problem, the present invention takes following technical scheme:
A kind of shield machine center cutter of the present invention, comprise tool rest, center cutter, four limit tool rests, four limit cuttves, described tool rest is in the form of annular discs, described center cutter is weldingly fixed on the center of base, described four limit tool rests are weldingly fixed on the periphery of center cutter by Central Symmetry mode, described four limit cuttves are separately fixed at the side of four limit tool rests by bolt, nut, limit cutter and limit tool rest form four tool arms, and angle is 90 degree each other.
A corrective measure of the present invention is: (surface soldered has hard alloy blocks to the conical end of described center cutter.
Further improvement of the present invention measure is: the hypotenuse height of described tool rest is lower than the hypotenuse height of limit cutter, and the hypotenuse surface of described limit cutter is welded with hard alloy blocks.
Further corrective measure of the present invention is: described tool rest is processed with installation through hole.
A kind of shield machine center cutter of the present invention, owing to comprising tool rest, center cutter, four limit tool rests, four limit cuttves, described tool rest is in the form of annular discs, described center cutter is weldingly fixed on the center of base, described four limit tool rests are weldingly fixed on the periphery of center cutter by Central Symmetry mode, described four limit cuttves pass through bolt, nut is separately fixed at the side of four limit tool rests, limit cutter and limit tool rest form four tool arms, angle is 90 degree each other, therefore, shield machine center cutter of the present invention, four tool arm uniform force, working resistance is little, effectively improve center cutter to resistance to wear, anti-vibration, shock proof performance, there is long service life, carrying is stable, drivage efficiency advantages of higher, in addition on the one hand, the traditional formula that is welded and fixed tool arm is designed to the structure can dismantled from the side of blade bearing, make dismounting very convenient, ensure that the blade of wearing and tearing is changed in time, effectively control the diffusion of wearing and tearing, avoid the waste of resource, there is good economy performance, low cost of manufacture, the advantage such as easy to install.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the schematic side view of Fig. 1.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of shield machine center cutter of the present invention, comprise tool rest 1, center cutter 2, four limit tool rests 3, four limit cuttves 4, described tool rest 1 is in the form of annular discs, described center cutter 2 is weldingly fixed on the center of base 1, and described four limit tool rests 3 are weldingly fixed on the periphery of center cutter 2 by Central Symmetry mode, and described four limit cuttves 4 are by bolt 6, nut 7) and four limit tool rests 3 be fixed together, limit cutter 4 and limit tool rest 3 form four tool arms, and angle is 90 degree each other.
The surface soldered of the conical end 21 of described center cutter 2 has hard alloy blocks.
The hypotenuse height of described tool rest 3 is lower than the hypotenuse height of limit cutter 4, and the hypotenuse surface of described limit cutter 4 is welded with hard alloy blocks 5.
Described tool rest 1 is processed with through hole 8 is installed.
When finding that the wearing and tearing of center cutter are comparatively serious, only need carry out dismounting and change to the blade of serious wear, shield structure center cutter of the present invention stability in tunneling process is better, shock resistance, wear resistance are higher, the replacing of blade easily operates, avoid the waste of resource, save the cost of construction, there is higher economic worth.
Should be noted that; the foregoing is only the preferred embodiments of the present invention, be not limited to the present embodiment, within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a shield machine center cutter, comprise tool rest (1), center cutter (2), four limit tool rests (3), four limit cuttves (4), it is characterized in that: described tool rest (1) is in the form of annular discs, described center cutter (2) is weldingly fixed on the center of base (1), described four limit tool rests (3) are weldingly fixed on the periphery of center cutter (2) by Central Symmetry mode, described four limit cuttves (4) are by bolt (6), nut (7) is separately fixed at the side of four limit tool rests (3), limit cutter (4) and limit tool rest (3) form four tool arms, angle is 90 degree each other.
2. a kind of shield machine center cutter according to claim 1, is characterized in that: the surface soldered of the conical end (21) of described center cutter (2) has hard alloy blocks.
3. a kind of shield machine center cutter according to claim 1, it is characterized in that: the hypotenuse height of described tool rest (3) is lower than the hypotenuse height of limit cutter (4), and the hypotenuse surface on described limit cutter (4) is welded with hard alloy blocks (5).
4. a kind of shield machine center cutter according to claim 3, is characterized in that: described tool rest (1) is processed with and installs through hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410493229.3A CN104265312A (en) | 2014-09-25 | 2014-09-25 | Center cutter of shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410493229.3A CN104265312A (en) | 2014-09-25 | 2014-09-25 | Center cutter of shield tunneling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265312A true CN104265312A (en) | 2015-01-07 |
Family
ID=52156870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410493229.3A Pending CN104265312A (en) | 2014-09-25 | 2014-09-25 | Center cutter of shield tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448207A (en) * | 2017-09-30 | 2017-12-08 | 中铁工程装备集团有限公司 | The preceding dress removable fish tail knife of piecemeal |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6305754B1 (en) * | 1998-05-29 | 2001-10-23 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Tunnel excavator with S-shaped soil plate |
| JP2003214091A (en) * | 2002-01-29 | 2003-07-30 | Mitsubishi Heavy Ind Ltd | Tunnel boring machine |
| JP2004251042A (en) * | 2003-02-21 | 2004-09-09 | Toda Constr Co Ltd | Tunnel excavator |
| CN201180857Y (en) * | 2008-03-18 | 2009-01-14 | 陈浩 | Tool bit of pipe pusher |
| CN201650299U (en) * | 2010-02-02 | 2010-11-24 | 刘玉海 | Center cutter for shield machine |
| CN102155238A (en) * | 2011-03-21 | 2011-08-17 | 天津大学 | Exchangeable blade type center cutter for shield machine |
| CN204098925U (en) * | 2014-09-25 | 2015-01-14 | 无锡市翱宇特新科技发展有限公司 | A kind of shield machine center cutter |
-
2014
- 2014-09-25 CN CN201410493229.3A patent/CN104265312A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6305754B1 (en) * | 1998-05-29 | 2001-10-23 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Tunnel excavator with S-shaped soil plate |
| JP2003214091A (en) * | 2002-01-29 | 2003-07-30 | Mitsubishi Heavy Ind Ltd | Tunnel boring machine |
| JP2004251042A (en) * | 2003-02-21 | 2004-09-09 | Toda Constr Co Ltd | Tunnel excavator |
| CN201180857Y (en) * | 2008-03-18 | 2009-01-14 | 陈浩 | Tool bit of pipe pusher |
| CN201650299U (en) * | 2010-02-02 | 2010-11-24 | 刘玉海 | Center cutter for shield machine |
| CN102155238A (en) * | 2011-03-21 | 2011-08-17 | 天津大学 | Exchangeable blade type center cutter for shield machine |
| CN204098925U (en) * | 2014-09-25 | 2015-01-14 | 无锡市翱宇特新科技发展有限公司 | A kind of shield machine center cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448207A (en) * | 2017-09-30 | 2017-12-08 | 中铁工程装备集团有限公司 | The preceding dress removable fish tail knife of piecemeal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |