CN109236307A - The blade construction of shield machine - Google Patents
The blade construction of shield machine Download PDFInfo
- Publication number
- CN109236307A CN109236307A CN201811215317.1A CN201811215317A CN109236307A CN 109236307 A CN109236307 A CN 109236307A CN 201811215317 A CN201811215317 A CN 201811215317A CN 109236307 A CN109236307 A CN 109236307A
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- Prior art keywords
- welding
- alloy
- dentation
- master alloying
- shield machine
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- 238000003466 welding Methods 0.000 claims abstract description 80
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 66
- 239000000956 alloy Substances 0.000 claims abstract description 66
- 238000005275 alloying Methods 0.000 claims abstract description 59
- 239000011159 matrix material Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000005520 cutting process Methods 0.000 claims abstract description 26
- 230000002787 reinforcement Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000002689 soil Substances 0.000 abstract description 14
- 230000008859 change Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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
Landscapes
- 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 present invention provides a kind of blade constructions of shield machine comprising: matrix base material offers the welding groove of certain depth on the working position of described matrix base material；Cut native master alloying, described to cut native master alloying and be made of the dentation alloy of the wavy arrangement of a row, the opposite equal welding-ons of welding surface of two of each dentation alloy are in the welding groove.The native master alloying form of cutting of scraper of the present invention is optimized for a row similar to wavy tooth form alloy by the form that the linear alloy of monolith is piled up, and replaces monolith alloy face to cut soil with tooth point；Meanwhile the form of native master alloying Mosaic protection is cut, two opposite welding surfaces for cutting native master alloying are welded with the inner wall of the welding groove of matrix base material respectively, so that it is stronger to cut native master alloying.
Description
Technical field
The present invention relates to shield machine accessory more particularly to a kind of blade constructions of shield machine.
Background technique
In recent years, further speeding up with urbanization process, urban congestion problem is increasingly severe, especially one,
The exploitation of tier 2 cities underground traffic has been very urgent.Shield-tunneling construction was automated with safety, quick, height, to construction line week
Many advantages, such as side interference is small is increasingly used in subway construction.Recent years rises many super-large-diameter shield machines,
In the driving of long range, it is frequently encountered complicated geologic structure, weak soil when scraper is as shield machine mine working operation
Knife, the scraper that the present country uses, as shown in Figures 1 to 3, structure is mainly by alloy steel forging matrix 21 and 22 pricker of hard alloy
The combination of weldering composition, alloy and cutter hub is brazed using copper-based or silver-based, and scraper cuts native master alloying (i.e. hard alloy
It 22) is all blocky linear alloy, then encountering locally ovum when cutting soil, being rich in stratum compared with hard formation in the construction process
Stone, erratic boulder make scraper cutter by the effect of greater impact power, and scraper is easily caused to collapse tooth, fall tooth, so as to cause scraper report
It is useless, knife bucket can be injured or even injure cutterhead, considerably increase the cost of construction.It needs frequently to change because service life is short
Knife increases construction risk and engineering cost.So how from scraper in form make improvement, keep these scrapers higher
Durable use is imitated, reduction collapses tooth, falls tooth situation, being a problem to be solved.
Summary of the invention
Tooth situation is collapsed the present invention is directed to promote cutter efficiency of breaking rock and reduce cutter, in consideration of it, the present invention provides one kind
The blade construction of shield machine.
To achieve the above object, the present invention provides a kind of blade constructions of shield machine comprising:
Matrix base material offers the welding groove of certain depth on the working position of described matrix base material；And
Cut native master alloying, described to cut native master alloying and be made of the dentation alloy of the wavy arrangement of a row, each dentation closes
The opposite equal welding-on of welding surface of two of gold is in the welding groove.
In some embodiments of the invention, the top opposite sides of described matrix base material is respectively formed to described and cuts native master
The first inclined surface that the front of alloy tilts upward and the second inclined surface tilted upward to the back side for cutting native master alloying.
In some embodiments of the invention, the welding groove is opened in first inclined surface and second inclined surface
Top.
In some embodiments of the invention, the front and the first inclined surface of described matrix base material for cutting native master alloying
Link position be equipped with reinforcement structure.
In some embodiments of the invention, the reinforcement structure includes one of following form or a variety of combinations:
It is welded with alloy, wear-resisting weldering is piled up and is welded with wear-resisting steel plate.
In some embodiments of the invention, described two opposite welding surfaces of dentation alloy are arranged in parallel, and point
The front and back of native master alloying described Wei Yu not be cut.
In some embodiments of the invention, the height of described two opposite welding surfaces is different, and is located at positive welding
Face is higher than the welding surface positioned at the back side, is formed as the bottom surface of the dentation alloy, and the bottom between the bottom of two welding surfaces
Face is perpendicular to two welding surfaces.
In some embodiments of the invention, the dentation alloy welding-on inlays depth equal to position in the welding groove
In the height of the welding surface at the back side.
In some embodiments of the invention, the welding groove has two opposed inner walls being parallel to each other, and two phases
Fit in two opposite welding surfaces of the dentation alloy welded correspondingly to inner wall.
In some embodiments of the invention, the dentation alloy is in low wide and up narrow shape, under the dentation alloy
Portion is welded in side by side in the welding groove, and the top of the dentation alloy is exposed to the welding groove and shows wave-like.
The present invention due to the adoption of the above technical scheme, make it have it is following the utility model has the advantages that
1, the native master alloying form of cutting of scraper is optimized for a row similar to wavy by the form that the linear alloy of monolith is piled up
Tooth form alloy replaces monolith alloy face to cut soil with tooth point；
2, the form for cutting native master alloying Mosaic protection, cut two of native master alloying opposite welding surfaces respectively with matrix base material
The inner wall of welding groove welds, so that it is stronger to cut native master alloying；
3, the native master alloying of cutting of scraper inlays depth down, and scraper front takes and is welded with alloy, piles up wear-resisting weldering and be welded with
The modes such as wear-resisting steel plate are reinforced and are protected.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural map of the scraper of current shield machine.
Fig. 2 is the rear view of scraper shown in Fig. 1.
Fig. 3 is the front view of scraper shown in Fig. 1.
The structural map of the blade construction of the shield machine of Fig. 4 embodiment of the present invention.
Fig. 5 is the front structural map of the blade construction of Fig. 4 embodiment.
Fig. 6 is the top local structure figure of the blade construction of Fig. 4 embodiment.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
The scraper that the present country uses, as shown in Figures 1 to 3, structure is mainly closed by alloy steel forging matrix 21 and hard
The combination of 22 soldering composition of gold, alloy and cutter hub is brazed using copper-based or silver-based, and scraper cuts native master alloying (i.e. hard
Alloy 22) it is all blocky linear alloy, it when cutting soil, is rich in stratum then encountering part in the construction process compared with hard formation
Cobble, erratic boulder make scraper cutter by the effect of greater impact power, cause scraper to collapse tooth, fall tooth, easily so as to cause scraper
It scraps, knife bucket can be injured or even injures cutterhead, considerably increase the cost of construction.
In addition, previous scraper to cut native master alloying all be reclining welding form, cut native master alloying and the L-shaped weldering of matrix 21
It connects, limit scraper cuts the earthwork to (cutting native master alloying, only the back side has against, front without against can cause when backwards to stress
It is mobile to cut native master alloying, thus limiting such scraper can only positive stress).
Therefore, following some problems are primarily present with scraper cutter for existing shield:
1, when scraper cutter encounters the hard objects such as cobble, erratic boulder during cutting the soil body, the master alloying on scraper is easy
It generates tooth and collapses tooth situation, scraper once falls tooth, collapses tooth, and subsequent abrasion is exceedingly fast, and service life is seriously affected, in compound stratum
In generally use less than 30 rings and must just replace, and abrasion loss is generally in 50~60mm, even more, scraper base material and scraper
The regular injury of knife bucket, causes the increase of tool change time and number, influences propulsive efficiency；And tool changing operating risk also compares
Greatly.
2, the scraper form of conventional is all that soil is cut in monolith master alloying participation, is similar to the line contact soil body, entirely
Cutterhead is arranged more that can there is a problem of that resistance is excessive after scraper, causes the situation that torque is excessive.
In view of the above problems, the present invention mainly summarizes consideration from the following aspects: first is that how to reduce scraper knife
Collapsing tooth, falling tooth situation for tool, increases the service life of scraper, reduces number of changing knife；Second is that how to reduce when cutter cuts soil
Resistance, so that cutter head torque becomes smaller.
The present invention improves blade construction as a result, a kind of blade construction of the shield machine after providing improvement, power
It asks to promote cutter efficiency of breaking rock and reduce cutter and collapses tooth situation.
The blade construction of shield machine after improvement of the invention mainly by matrix base material and is cut native master alloying two parts and is constituted.
Wherein, the welding groove of certain depth is offered on the working position of matrix base material, feature is, cuts native master alloying by a row in wave
The dentation alloy of shape wave arrangement is constituted, and two opposite equal welding-ons of welding surface of each dentation alloy are in the welding groove.
The present invention is described in detail in the following with reference to the drawings and specific embodiments.
In conjunction with shown in Fig. 4~6, the blade construction of the shield machine after improvement of the invention mainly by matrix base material 11 and cuts soil
Master alloying two parts are constituted.Wherein, the welding groove 110 of certain depth is offered on the working position of matrix base material 11, feature exists
In cutting native master alloying and be made of the dentation alloy 12 of the wavy arrangement of a row, and two of each dentation alloy 12 opposite welderings
The equal welding-on of junction is in the welding groove 110 of matrix base material 11.The dentation alloy 12 of native master alloying is cut in low wide and up narrow shape, tooth
The lower part of shape alloy 12 is welded in side by side in the welding groove 110 of matrix base material 11, and the top of dentation alloy 12 is exposed to welding groove
110 and show wave-like.The present invention is optimized the form that cutter cuts native master alloying by the form that the linear alloy of monolith is piled up
It is a row similar to wavy tooth form alloy, replaces monolith alloy face to cut soil, the dentation alloy 22 of wavy arrangement with tooth point
More easily broken rock replaces monolith alloy face to cut soil, reduces resistance suffered by cutter itself, be not easy to collapse tooth, cutter head torque is obtained with tooth point
To being obviously reduced.
Specifically, steel alloy forging matrix can be used in matrix base material 11, in the working position of matrix base material 11, i.e. scraper top
The cutting edge position in portion, be arranged have certain depth welding groove 110, the welding groove 110 it is U-shaped, have go deep into matrix mother
Bottom and surrounding side wall in material 11 especially have a pair of inner wall being parallel to each other, also, in a pair of inner wall being parallel to each other
One of the front towards cutter, wherein another back side towards cutter.The welding groove opened up at the top of matrix base material 11
110 can be one, in a strip shape, and the edge direction arrangement at the top of scraper will cut whole 22 welding-ons of dentation alloy of native master alloying
In a welding groove 110；Multiple welding grooves side by side, edge direction one of multiple welding grooves at the top of scraper can also be opened up
Word arranges, optionally welding-on one or more dentation alloy 22 in each welding groove.In addition, welding groove 110 is mutual flat
That capable a pair of inner wall can be perpendicular with horizontal direction, can also be at an angle to the horizontal direction；The bottom of welding groove 110
Can be parallel with horizontal direction, it can also be at an angle to the horizontal direction；The bottom of welding groove 110 and that being parallel to each other
A pair of inner wall can be mutually perpendicular to, can also be at an angle.Design focal point of the invention is, enables the weldering on matrix base material 11
Access slot 110 is located at the position of inclined matrix base material middle top, rather than is located at the front or back side both sides of matrix base material, this
Sample can will cut the face knife face (front) and back knife face (back side) of the dentation alloy 22 of native master alloying, especially dentation alloy, edge
Among the inner wall of welding groove 110, the either positive stress of dentation alloy 22 or back side stress all not readily disengage from weldering
Access slot 110, prevents tooth, but also scraper is had ready conditions, two sides is used, and improves the scope of application of scraper.
The original mosaic mode of native master alloying is cut in present invention change, not only deepens to cut native master alloying and inlay depth, more important
Be welding surface of the master alloying in conjunction with matrix base material be two welding surfaces being parallel to each other.The technology of the present invention is added significantly to weld
Surface area is connect, weld strength is effectively increased, and improves the bond strength of alloy, prevents scraper master alloying fillet in normal shear from existing
It falls off when by external force because of tearing, to guarantee scraper service life.
Further, as shown in figure 4, the top opposite sides of matrix base material 11 is respectively formed to the front for cutting native master alloying
The first inclined surface 111 tilted upward and the second inclined surface 112 tilted upward to the back side for cutting native master alloying, and this first inclines
Inclined-plane 111 upwardly extend track and the second inclined surface 112 upwardly extend track and roof intersection converges (practical first inclined surface
It is not extended to top with the second inclined surface, simply to illustrate that the relationship of the inclined direction of two inclined surface).Welding groove 110
It is opened between the first inclined surface 111 and the top of the second inclined surface 112.
Preferably, the link position in first inclined surface 111 in the front and matrix base material 11 of cutting native master alloying is equipped with and adds
Strong structure 13, the reinforcement structure 13 include one of following form or a variety of combinations: being welded with alloy, pile up wear-resisting weldering and add
Wear-resisting steel plate is welded, scraper front protecting is reinforced.Wherein, so-called in the front and the first inclined surface of matrix base material of cutting native master alloying
Link position in link position, be not to refer in particular to reinforcement structure to be connected to front and the matrix for cutting native master alloying simultaneously
Base material, but should be understood as that reinforcement structure is being arranged in a certain range that the two connects position, because scrape herein
The main stress point and weak spot of knife front stress, need especially to reinforce.
Two opposite welding surfaces 121 for cutting the dentation alloy 12 of native master alloying are arranged in parallel, and are located at and cut soil
The front and back of master alloying.As shown in figure 4, the height of two opposite welding surfaces 121 is different, and it is located at and cuts native master alloying front
Welding surface be higher than to be located at and cut the welding surface at the native master alloying back side, be formed as the dentation between the bottom of two welding surfaces 121
The bottom surface 122 of alloy 12, and the bottom surface 122 is perpendicular to two welding surfaces 121 of two sides.
Preferably, 12 welding-on of dentation alloy in welding groove 110 inlay depth be equal to be located at cut the native master alloying back side
The height of welding surface 121, moreover, this inlays the more traditional master alloying of depth in about 3 centimeters of soldering depth down on matrix or more
It is more, but should ensure that the top blade of dentation alloy 12 exposes the top of welding groove, to guarantee that cuts native master alloying cuts native function.
Accordingly, the welding groove of matrix base material has two opposed inner walls being parallel to each other, and enables two opposed inner walls one
One accordingly fits in two of welded dentation alloy opposite welding surfaces, i.e. increase bonding area, improve dentation alloy with
The firm welding of welding groove.In the attached drawing of the present embodiment, the above-mentioned scheme for enabling welding surface fit is not taken, but
It is as can be seen that the welding surface of the two sides of dentation alloy 12 is still firmly against before and after being vertically arranged of welding groove 110
On inner wall, in junction firm welding, the back-and-forth motion of dentation alloy 12 is limited, reduces tooth and threatens.
The present invention improves the form for cutting native master alloying of scraper, and the dentation alloy of wavy arrangement is easier broken rock, with
Tooth point replaces monolith alloy face to cut soil, reduces resistance suffered by cutter itself, is not easy to collapse tooth, cutter head torque is obviously reduced.
Cutting edge shape is different, and it is also different that broken excavation face is formed by plane of disruption shape.Flat scraper can only in excavation face
An exposed scope of freedom is formed, and three serrated knives can form multiple scope of freedoms.The exposed scope of freedom is more, required for fractured rock
Specific volumetric fracture work is smaller；Therefore when shield cutter is according to certain drilling speed and fltting speed digging excavation face, three serrated knife institutes
The torque of generation and the power ratio flat scraper of consumption are small.
The reclining welding form for cutting native master alloying in the past is changed, is embedded among matrix base material native master alloying is cut,
Cutting welding surface of the native master alloying in conjunction with matrix base material is two welding surfaces for being parallel to each other (similar U-shaped), compares traditional master
The connection of the L-type of alloy and basal plane is stronger, and scraper master alloying of the present invention inlays depth down, and scraper front, which is taken, is welded with conjunction
Gold piles up wear-resisting weldering and is welded with the modes such as wear-resisting steel plate and reinforces and protect, surround it is more closely knit, cutter it is more difficult fall tooth.
The present invention by adopting the above technical scheme, increases scraper cutting-tool's used life, reduces number of changing knife, Ke Yiyou
Effect reduce tool changing risk, ensure that the propulsion of shield, example proves: under same geology, same trajectories, former knives forward less than
30 rings must just carry out tool changing operation, using can be used 50 rings to 70 rings after improved scraper cutter, and almost without collapse tooth,
The phenomenon that falling tooth.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the invention enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach and obtain
In the range of capable of covering.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, technology according to the present invention are real
Matter any simple modification, equivalent change and modification to the above embodiments, still fall within the range of technical solution of the present invention
It is interior.
Claims (10)
1. a kind of blade construction of shield machine characterized by comprising
Matrix base material offers the welding groove of certain depth on the working position of described matrix base material；And
Cut native master alloying, it is described to cut native master alloying and be made of the dentation alloy of the wavy arrangement of a row, each dentation alloy
Two opposite equal welding-ons of welding surface are in the welding groove.
2. the blade construction of shield machine as described in claim 1, it is characterised in that: the top opposite sides of described matrix base material
It is respectively formed the first inclined surface tilted upward to the front for cutting native master alloying and inclines to the back side for cutting native master alloying
The second inclined surface obliquely.
3. the blade construction of shield machine as claimed in claim 2, it is characterised in that: the welding groove is opened in described first and inclines
The top on inclined-plane and second inclined surface.
4. the blade construction of shield machine as claimed in claim 3, it is characterised in that: described to cut the positive and described of native master alloying
The link position of first inclined surface of matrix base material is equipped with reinforcement structure.
5. the blade construction of shield machine as claimed in claim 4, it is characterised in that: the reinforcement structure includes in following form
One or more combinations: be welded with alloy, pile up wear-resisting weldering and be welded with wear-resisting steel plate.
6. as shield machine according to any one of claims 1 to 5 blade construction, it is characterised in that: dentation alloy it is described
Two opposite welding surfaces are arranged in parallel, and are located at the front and back for cutting native master alloying.
7. the blade construction of shield machine as claimed in claim 6, it is characterised in that: the height of described two opposite welding surfaces is not
Together, and positioned at positive welding surface it is higher than the welding surface positioned at the back side, is formed as the dentation between the bottom of two welding surfaces
The bottom surface of alloy, and the plane perpendicular is in two welding surfaces.
8. the blade construction of shield machine as claimed in claim 7, it is characterised in that: the dentation alloy welding-on is in the welding
The height for inlaying the welding surface that depth is equal to positioned at the back side in slot.
9. the blade construction of shield machine as claimed in claim 6, it is characterised in that: the welding groove has two to be parallel to each other
A opposed inner walls, and two opposed inner walls fit in two opposite welding of the dentation alloy welded correspondingly
Face.
10. the blade construction of shield machine as described in claim 1, it is characterised in that: the dentation alloy is in low wide and up narrow
The lower part of shape, the dentation alloy is welded in side by side in the welding groove, and the top of the dentation alloy is exposed to the weldering
Access slot simultaneously shows wave-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811215317.1A CN109236307A (en) | 2018-10-18 | 2018-10-18 | The blade construction of shield machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811215317.1A CN109236307A (en) | 2018-10-18 | 2018-10-18 | The blade construction of shield machine |
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| CN109236307A true CN109236307A (en) | 2019-01-18 |
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| CN201811215317.1A Pending CN109236307A (en) | 2018-10-18 | 2018-10-18 | The blade construction of shield machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707390A (en) * | 2019-02-28 | 2019-05-03 | 中铁隧道集团二处有限公司 | A kind of shield cutter |
| CN110860816A (en) * | 2019-12-20 | 2020-03-06 | 李文娟 | Plate for manufacturing hook claw on control rod driving mechanism and manufacturing method |
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| JP2009084995A (en) * | 2007-09-11 | 2009-04-23 | Kajima Corp | Cutter bit and method of excavation |
| CN201241709Y (en) * | 2008-08-20 | 2009-05-20 | 刘玉海 | Scraper for shield machine |
| CN103573271A (en) * | 2013-10-31 | 2014-02-12 | 宁波麦克潘特电动工具有限公司 | Tunnel boring machine cutter and preparation method thereof |
| CN203905957U (en) * | 2014-06-30 | 2014-10-29 | 无锡骏腾方湖合金铸业有限公司 | Cutter of shield machine |
| CN204646243U (en) * | 2015-04-09 | 2015-09-16 | 山东天工岩土工程设备有限公司 | A kind of novel combination type shield structure scraper |
| CN205243515U (en) * | 2015-12-23 | 2016-05-18 | 马鞍山灵山机械设备科技有限公司 | Shield constructs machine tunnelling scraper |
| CN205260046U (en) * | 2015-12-30 | 2016-05-25 | 中船重型装备有限公司 | Shield constructs quick -witted peripheral scraper protection sword |
| CN205638464U (en) * | 2016-06-01 | 2016-10-12 | 常德市中天精密工具有限公司 | Shield constructs novel scraper of machine |
| CN206329340U (en) * | 2016-12-15 | 2017-07-14 | 中建交通建设集团有限公司 | A kind of shield machine cutter |
| CN207406346U (en) * | 2017-07-29 | 2018-05-25 | 赣州伟嘉合金有限责任公司 | A kind of hard alloy shield week edge doctor |
| CN107542476A (en) * | 2017-10-16 | 2018-01-05 | 中船重型装备有限公司 | A kind of shock resistance shield machine scraper |
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| CN109707390A (en) * | 2019-02-28 | 2019-05-03 | 中铁隧道集团二处有限公司 | A kind of shield cutter |
| CN109707390B (en) * | 2019-02-28 | 2020-06-19 | 中铁隧道集团二处有限公司 | Shield cutter |
| CN110860816A (en) * | 2019-12-20 | 2020-03-06 | 李文娟 | Plate for manufacturing hook claw on control rod driving mechanism and manufacturing method |
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