CN101539022A - Earth pressure balance shield machine cutterhead - Google Patents
Earth pressure balance shield machine cutterhead Download PDFInfo
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- CN101539022A CN101539022A CN200910059061A CN200910059061A CN101539022A CN 101539022 A CN101539022 A CN 101539022A CN 200910059061 A CN200910059061 A CN 200910059061A CN 200910059061 A CN200910059061 A CN 200910059061A CN 101539022 A CN101539022 A CN 101539022A
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- 239000000956 alloy Substances 0.000 claims abstract description 117
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 117
- 230000001815 facial effect Effects 0.000 claims abstract description 14
- 210000000515 tooth Anatomy 0.000 claims description 65
- 238000005520 cutting process Methods 0.000 claims description 11
- 238000005253 cladding Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000004575 stone Substances 0.000 description 9
- 238000009412 basement excavation Methods 0.000 description 7
- 210000004209 hair Anatomy 0.000 description 7
- 239000011324 bead Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007790 scraping Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses an earth pressure balance shield machine cutterhead. The surface of the cutterhead comprises a central area, a facial area and a marginal area, wherein each two-edged serrated cutter arranged on No. 1 to No. 8 cutter seats comprises two cutter bodies and two cutter heads fixedly connected on the cutter bodies, wherein the top face of each cutter head adopts the higher-middle and lower-side structure by gradually raising areas from both sides to the middle parts; the upper part of each side face of the cutter head is an externally expanded inclined face; the middle part of the top face is fixedly connected with a strip-shaped hard alloy, and the top faces of both sides of the strip-shaped hard alloy are fixedly connected with four rows of symmetrically distributed hard alloy column teeth; height differences are respectively formed between the tops of the hard alloy column teeth and the top of the strip-shaped hard alloy; and abrasion proof overlaying welding layers are fixedly connected with the peripheral top faces and the side faces of the strip-shaped hard alloy and the hard alloy column teeth. The cutterhead provided with the structure of the invention can increase advance rate, reduce abrasion and prolong service lives of the cutters, and reduce advancing cost under the circumstance of water-rich sandy cobble strata.
Description
Technical field
The present invention relates to a kind of cutterhead of balancing earth-pressure shielding machine, the especially configuration of the cutter on the cutterhead.
Background technology
Shield-tunneling construction is safe, fast, efficient at urban infrastructure with it---obtain application more and more widely in city underground, municipal public use pipeline, the oil transportation/all kinds of underground engineering constructions such as gas underground pipeline.Comprise on the cutterhead card of existing shield machine that being positioned at the vertical or transverse graticule both sides miter angle vertically hung scroll of cutterhead is that the initial point radius of gyration is the center of 0～705mm with the cutterhead center, be positioned between cutterhead vertical or transverse graticule both sides miter angle vertically hung scroll and vertically hung scroll near the radius of gyration 705mm～2782mm facial area at notch place, be positioned at vertical 30 °, 45 °, 60 °, 120 °, the 150 ° angle bead width of cloth of cross hairs one side of cutterhead, cutterhead is indulged 30 °, 60 °, 120 °, the 150 ° angle bead width of cloth of cross hairs opposite side, the fringe area of radius of gyration 2782mm～3140mm.Be provided with 1#-8# tool rest and corresponding in the center totally 8 the twolip hobboing cutter.Facial area is provided with 9#-31# and 41#-68# tool rest, and wherein 9#-31# tool rest corresponding 22 is the single-blade hobboing cutter, and 41#-68# tool rest corresponding 28 is little scraper.The fringe area is provided with 32-40# tool rest and corresponding 9 the twolip hobboing cutter, 69#-76# tool rest and correspondence 7 edge doctor.
When the balancing earth-pressure shielding machine that uses the said structure cutterhead in rich water sandy gravel location and rich water sandy gravel during with mud stone compound stratum driving, the cutter abrasion on the cutterhead are very serious, average 120～150m just needs all or cutters of most of replacing.When sand-pebble layer contains severely-weathered mud stone, if adopt hobboing cutter can reduce drivage efficiency totally; And serrated knife is too much, and the excessive load that increases the weight of the cutterhead motor of scraping resistance causes the excessive wear of cutterhead motor easily on the one hand; On the other hand, because the relative sand-pebble layer of mud stone is tightr, harder, the serrated knife wearing and tearing are very severe.
Under environment like this, in order to improve driving speed, reduce excavation cost, need to adopt the knife disc tool that is suitable for rich water sand-pebble layer or rich water sandy gravel and mud stone compound stratum.Shield cutter by the rationally perfect configuration of searching cutter is one technical barrier that the utmost point need solve in the constructing tunnel process.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of earth pressure balance shield machine cutterhead that is applicable to rich water sand-pebble layer and rich water sandy gravel and mud stone compound stratum driving, it can improve driving speed under rich water sand-pebble layer situation, reduce tool wear, improve cutter life, reduce excavation cost.
For solving the problems of the technologies described above, earth pressure balance shield machine cutterhead of the present invention, the cutter that its center 1#-8# tool rest is arranged is the twolip serrated knife, described twolip serrated knife comprises two cutter hubs and is connected in two cutter heads on the cutter hub; Each head top surface from two sides to the middle part swell gradually form in the middle of high, the low structure in both sides; The top of cutter head two sides is an inclined-plane that extends out; Described end face middle part is fixed with the strip carbide alloy, and the end face of strip carbide alloy both sides is fixed with four row's hard alloy columnar teeths of symmetrical distribution; The top of the top of described first row, second row's hard alloy columnar teeth and the 4th row, the 3rd row's hard alloy columnar teeth forms difference in height successively with the top of strip carbide alloy respectively; Be fixed with wearable overlay on end face around described strip carbide alloy, the hard alloy columnar teeth and the two sides.
Adopt the cutterhead of said structure, the twolip serrated knife that its center tool rest adopts, because head top surface to the height of cutter hub bottom increases, it is more to make the peak at twolip serrated knife head top surface middle part exceed the cutterhead surface, help core quarrel soil excavation in advance, by the quarrel soil of damaged other parts successively of point and face, can reduce the impact property of excavation stratum then to cutter.The top of two sides is an inclined-plane that extends out, and can enlarge the area of head top surface, and reduces the wearing and tearing to the bottom.The suitable fragmentation to the soil that is cut of the strip alloy at end face middle part, the meshing gold of post is in broken to the soil that is cut, and is very wear-resisting.Above-mentioned alloy is mounted in the end face, and shock resistance is good.Can use the more alloy of high rigidity, improve the abrasion resistance properties of cutter head.The distance by the twolip cutter head rationally is set and the size of each cutter head, and increased in head top surface that hardness is higher, the better alloy of abrasion resistance carbide alloy especially, and strip alloy, the alloy column tooth rim of head top surface enclose with two sides on be fixed with wearable overlay, the cutter head front-back is fixed with netted wearable overlay.The wear resistance of head top surface, front-back and side is greatly improved, suitable especially excavation to the stratum tight, that hardness is high.Make it under rich water sand-pebble layer situation, improve driving speed, reduce excavation cost.
Further improvement is, described facial area 9#-22# tool rest is arranged the single-blade serrated knife, and the 23#-31# tool rest is arranged the twolip hobboing cutter, and the 41#-68# tool rest is arranged little scraper; Described fringe area 32-40# tool rest is arranged the twolip hobboing cutter, and the 69#-76# tool rest is arranged edge doctor.
The cutter arrangement of another kind of structure can also be adopted in above-mentioned facial area and fringe area, and promptly facial area 10#-14# tool rest and 16#-19# tool rest are arranged the single-blade serrated knife, and 9#, 15#, 20#-31# tool rest are arranged the twolip hobboing cutter, and the 41#-68# tool rest is arranged little scraper; Described fringe area 32-40# tool rest is arranged the twolip hobboing cutter, and the 69#-76# tool rest is arranged edge doctor.
Cutterhead inner cutter linear velocity is little, and wear extent is little, and the cutterhead inboard is based on serrated knife, and the single-blade serrated knife greatly improves the wear resistance of head top surface and side owing to increased in the end face of cutter head and side that hardness is higher, the better alloy of abrasion resistance; Midfeather is installed the twolip hobboing cutter, so as with the mud stone squeeze crack so that serrated knife scraping mud stone.And because cutterhead external position cutter linear velocity is big, serious wear adopts the high twolip hobboing cutter of anti-wear performance.The twolip hobboing cutter is not only more wear-resisting but also improve drivage efficiency than single-blade type hobboing cutter, and because cutting edge is widened, the wear resistance of hobboing cutter is improved, thereby improve cutter life.
Further improving is that the height of described twolip serrated knife cutter hub is 277mm; Distance between two cutter heads outside is 254mm, and the distance between two cutter head inner faces is 70mm; Each cutter head length is 187mm, and width is 92mm; Head top surface to the height of cutter hub bottom is 384-394mm; The oblique angle of top, described cutter head two sides and vertical plane is 145 degree.
Further improve is that along the cutter head width, build-in has 3 square strip alloys side by side in the middle part of the described twolip serrated knife end face, every square strip alloy width is 16mm, highly be 32mm, its height that is mounted in the end face is 18mm, and the spacing between every alloy is 9mm; Described every row's hard alloy columnar teeth comprises that the cylinder diameter of every alloy column tooth is 23mm, is 32mm highly along the compact arranged 4 alloy column teeth of cutter head width, and the height that is mounted in the end face is 21mm.
Further improving is that the head top surface of described single-blade serrated knife and side scarfweld have hard alloy columnar teeth; The scarfweld of respectively tilting of end face both ends has row's strip carbide alloy, around the hard alloy columnar teeth of end face and the strip carbide alloy and the hard alloy columnar teeth of side around the wearable overlay that is connected.
Further improvement is, described end face hard alloy columnar teeth is 4 rows, and the hard alloy columnar teeth of two sides respectively is 2 rows; Along the cutter head width, every row's hard alloy columnar teeth is made up of 3 hard alloy columnar teeths, and the height of every hard alloy columnar teeth is 32mm, and the diameter of post tooth is 18mm; The strip carbide alloy at described end face two ends is by 3 strip alloy compositions, and the height of every strip carbide alloy is 32mm, and its width is 15mm.Described cutter head front-back is fixed with netted wearable overlay, and the height of overlay cladding is 125-135mm.
Further improvement is, is fixed with two circle hobboing cutters on the cutter hub of described twolip hobboing cutter, and the external diameter of described hobboing cutter is 531.3mm, and the center to center distance of two circle hobboing cutters are 100mm; Cutter hub heart portion interlocks bearing; The cutting edge of described hobboing cutter extends to a cutting edge of widening to both sides vertically, and the width of described cutting edge is 23-27mm.
Description of drawings
The present invention will illustrate by embodiment and with reference to the mode of accompanying drawing:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the front view of the used twolip serrated knife in the center of Fig. 1.
Fig. 3 is the partial enlarged drawing on the cutter head top of Fig. 2.
Fig. 4 is the vertical view of Fig. 2.
Fig. 5 is the left view of Fig. 2.
Fig. 6 is the front view of the used single-blade serrated knife of the facial area of Fig. 1.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the front view of the twolip hobboing cutter among Fig. 1.
The specific embodiment
Disclosed all features in this manual except mutually exclusive feature, all can make up by any way.Disclosed arbitrary feature in this manual (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
Embodiment 1
Earth pressure balance shield machine cutterhead as shown in Figure 1, the cutterhead layout can be divided into center, facial area and fringe area.
The center: the 1#-8# tool rest is set, and correspondence is provided with the twolip serrated knife in the tool rest; With the cutterhead center is initial point, and 1#-8# twolip serrated knife radius of gyration is respectively 120mm, 170mm, 280mm, 340mm, 468mm, 542mm, 628mm, 705mm.
Facial area: with the vertical cross hairs 101 of cutterhead is to arrange single-blade serrated knife and twolip hobboing cutter in the interior 9#-31# tool rest of center line left and right sides (±) 45 vertically hung scroll; Cutterhead (0 °, 90 °) cross hairs (101,102) vertically hung scroll is in length and breadth arranged little scraper near the 41#-68# tool rest at notch place.With the cutterhead center is initial point, and the radius of gyration of 9#-22# single-blade serrated knife is respectively 800mm, 900mm, 1000mm, 1100mm, 1200mm, 1300mm, 1400mm, 1500mm, 1600mm, 1700mm, 1800mm, 1900mm, 2000mm, 2100mm, the radius of gyration of 23#-31# twolip hobboing cutter is respectively 2200mm, 2300mm, 2390mm, 2470mm, 2550mm, 2610mm, 2670mm, 2722mm, 2782mm.
The fringe area: its 69#-76# tool rest is arranged edge doctor.With the vertical cross hairs of cutterhead is to arrange 32#, 35#, 33# twolip hobboing cutter respectively in (+) 30 °, 45 °, the 60 ° angle bead width of cloth of center line left side, arrange 40#, 38# twolip hobboing cutter respectively in 30 °, the 60 ° angle bead width of cloth in center line right side (-), with the vertical cross hairs of cutterhead is to arrange 37#, 39# twolip hobboing cutter respectively in (+) 120 °, the 150 ° angle bead width of cloth of center line left side, is to arrange 34#, 36# twolip hobboing cutter respectively in 120 ° on center line right side (-), 150 ° of angle bead width of cloth with the vertical cross hairs of cutterhead.With the cutterhead center is initial point, and 32#-40# twolip hobboing cutter radius of gyration is respectively 2841mm, 2897mm, 2953mm, 3001mm, 3047mm, 3082mm, 3111mm, 3130mm, 3140mm.
Embodiment 2
As different from Example 1:
Facial area 10#-14# tool rest and 16#-19# tool rest are arranged the single-blade serrated knife, and 9#, 15#, 20#-31# tool rest are arranged the twolip hobboing cutter;
Fringe area 32-40# tool rest is arranged the twolip hobboing cutter, and the 69#-76# tool rest is arranged edge doctor.
The foregoing description 1 and 2 described twolip serrated knives shown in Fig. 2-5, two cutter head 122 bottom by latch 110 respectively with the back solid welding that closely cooperates of corresponding cutter hub 121, to strengthen the bonding strength of cutter head and cutter hub.Cutter hub is connected in the tool rest.Cutter hub height H 1 is 277mm.Between the outside 111 of two cutter heads is 254mm apart from B, and between its inner face 124 is 70mm apart from B2; Each cutter head length A is 187mm, and width B 1 is 92mm, head top surface 112 from two sides 118 to the middle part swell gradually form in the middle of high, the low structure in both sides, its head top surface middle part peak is 389mm to the height H bottom the cutter hub.The top of cutter head two sides 118 is an inclined-plane that extends out, and the angle α of inclined-plane and vertical plane is 145 degree.End face middle part scarfweld is fixed with 3 square strip carbide alloy 117 that are arranged side by side along the cutter head width, and every square strip alloy width A3 is 16mm, and height H 2 is 32mm, and its height that is mounted in the end face is 18mm, and the spacing of every alloy is 9mm.End face in square strip carbide alloy both sides, the 4 row's hard alloy columnar teeths that tilt, scarfweld are fixed with symmetrical distribution, wherein first row's hard alloy columnar teeth 113 and the 4th row's hard alloy columnar teeth 116 heart portion distance A 1 are 180mm, and the distance A 2 of second row's hard alloy columnar teeth 114 and the 3rd row's hard alloy columnar teeth 115 heart portions is 86mm.The top that the top and the 4th row the 116, the 3rd of first row's hard alloy columnar teeth 113 and second row's hard alloy columnar teeth 114 arranges hard alloy columnar teeth 115 forms difference in height successively with the top of square strip carbide alloy 7 respectively.Every row's alloy column tooth by 4 side by side, compact arranged alloy column tooth 123 forms, the inclined-plane gradient of the angle that the alloy column tooth tilts and the side of homonymy is suitable.The cylinder diameter D of every alloy column tooth is 23mm, and height H 3 is 32mm, and the height that is mounted in the end face is 21mm.The hardness HRA of the hard alloy columnar teeth of head top surface, square strip carbide alloy is greater than 86.5.On end face around side's strip carbide alloy, the hard alloy columnar teeth and the two sides carbide alloy wearable overlay 119 is arranged.There is netted wearable overlay outside (111,124) in the cutter head, and its HRC is greater than 60.
The foregoing description 1 and 2 described single-blade serrated knives are shown in Fig. 6-7, its cutter head width B 20 is 100mm, cutter head top is that one deck height H 20 is the netted wearable overlay 201 of 130mm, the head top surface scarfweld is fixed with 4 row's hard alloy columnar teeths 202, the cutter head two sides are provided with 2 row's hard alloy columnar teeths 202, every row's alloy column tooth is made up of three alloy column teeth, and the height of every post tooth is 32mm, and the diameter of post tooth is 18mm; The head top surface both ends build-in that respectively tilts has row's strip carbide alloy 204, and the angle of inclination is 45 degree.Every row's strip carbide alloy is made up of three strip carbide alloy, and the height of every strip alloy is 32mm, and its width is 15mm.Around the hard alloy columnar teeth of end face, the strip carbide alloy and the hard alloy columnar teeth of side around the wearable overlay 203 that is connected.The netted wearable overlay HRC of cutter head front-back 205 built-up welding is greater than 60, and the hardness HRA of hard alloy columnar teeth, strip carbide alloy is greater than 86.5.
The foregoing description 1 and 2 described twolip hobboing cutters as shown in Figure 8, are fixed with two circle hobboing cutters 302 on the cutter hub 303, the outer diameter D 30 of hobboing cutter is 531.3mm, and the center to center distance B31 of two circle hobboing cutters is 100mm.Cutter hub heart portion interlocks bearing 304, and the cutting edges 301 of described two circle hobboing cutters extend to both sides vertically and widen, and the width B 30 of the edge of a knife is 23-27mm, and is especially preferable during 25mm.
The thickness of the wearable overlay of built-up welding and netted wearable overlay and built-up welding matrix surface (as head top surface, front-back, side) technology routinely is generally 5-10mm in the foregoing description 1 and 2 described single-blade serrated knives and the twolip serrated knife, is preferably 6-8mm.
Chengdu subway Line 1 Tianfu Square Development station～station, province sports palace running tunnel that the applicant builds, it is along the line to be positioned at people South Road, road both sides high building stands in great numbers, heavy traffic, municipal pipeline is numerous under the road, total length 4078m, and the interval shield tunnel of this section mainly passes through land pebble, shield structure top earthing is mainly artificial earth fill, powder fine sand, land pebble, is mainly land pebble, severely-weathered mud stone at the bottom of the shield structure.The proportion of the land pebble that passes through is 19～23kn/m3.Groundwater level depth is 3.9～9.0m, and the transmission coefficient on stratum is 12～27m/d, and full section shield tunnel top buried depth is 7.0～14.0m.Adopt the driving of the especially suitable rich water sand-pebble layer of embodiment 1 described knife disc tool configuration, adopt the driving of especially suitable rich water sandy gravel of embodiment 2 described knife disc tools and mud stone compound stratum.Above-mentioned configuration has improved shield driving speed, brings up to 4～6cm/s by 2 original～3cm/s; Improved the cutter changing distance, every dise knife tool is brought up to 300～350m with changing from 120 original～150m; The efficient height, short construction period, operating expenses is low.Driving speed is significantly improved, reduced excavation cost.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of earth pressure balance shield machine cutterhead comprises center, facial area, fringe area on the cutterhead card; The center is provided with the 1#-8# tool rest; Facial area is provided with 9#-31# tool rest and 41#-68# tool rest; The fringe area is provided with 32-40# tool rest and 69#-76# tool rest; It is characterized in that: the cutter that described center 1#-8# tool rest is arranged is the twolip serrated knife, described twolip serrated knife comprises two cutter hubs and is connected in two cutter heads on the cutter hub, each head top surface from two sides to the middle part swell gradually form in the middle of high, the low structure in both sides; The top of cutter head two sides is an inclined-plane that extends out; Described end face middle part is fixed with the strip carbide alloy, and the end face of strip carbide alloy both sides is fixed with four row's hard alloy columnar teeths of symmetrical distribution; The top of the top of described first row, second row's hard alloy columnar teeth and the 4th row, the 3rd row's hard alloy columnar teeth forms difference in height successively with the top of strip carbide alloy respectively; Be fixed with wearable overlay on end face around described strip carbide alloy, the hard alloy columnar teeth and the two sides.
2, earth pressure balance shield machine cutterhead as claimed in claim 1 is characterized in that: the interior outside of described each twolip serrated knife cutter head is fixed with netted wearable overlay.
3, earth pressure balance shield machine cutterhead as claimed in claim 1 is characterized in that: the height of described twolip serrated knife cutter hub is 277mm; Distance between two cutter heads outside is 254mm, and the distance between two cutter head inner faces is 70mm; Each cutter head length is 187mm, and width is 92mm; Head top surface to the height of cutter hub bottom is 384-394mm; The oblique angle of top, described cutter head two sides and vertical plane is 145 degree; The thickness of described overlay cladding is 5-10mm.
4, earth pressure balance shield machine cutterhead as claimed in claim 3, it is characterized in that: described twolip serrated knife end face middle part is along the cutter head width, build-in has 3 square strip alloys side by side, every square strip alloy width is 16mm, highly be 32mm, its height that is mounted in the end face is 18mm, and the spacing between every alloy is 9mm; Described every row's hard alloy columnar teeth comprises that the cylinder diameter of every alloy column tooth is 23mm, is 32mm highly along the compact arranged 4 alloy column teeth of cutter head width, and the height that is mounted in the end face is 21mm.
5, as each described earth pressure balance shield machine cutterhead of claim 1-4, it is characterized in that: described facial area 9#-22# tool rest is arranged the single-blade serrated knife, and the 23#-31# tool rest is arranged the twolip hobboing cutter, and the 41#-68# tool rest is arranged little scraper; Described fringe area 32-40# tool rest is arranged the twolip hobboing cutter, and the 69#-76# tool rest is arranged edge doctor.
6, as each described earth pressure balance shield machine cutterhead of claim 1-4, it is characterized in that: described facial area 10#-14# tool rest and 16#-19# tool rest are arranged the single-blade serrated knife, 9#, 15#, 20#-31# tool rest are arranged the twolip hobboing cutter, and the 41#-68# tool rest is arranged little scraper; Described fringe area 32-40# tool rest is arranged the twolip hobboing cutter, and the 69#-76# tool rest is arranged edge doctor.
7, earth pressure balance shield machine cutterhead as claimed in claim 5 is characterized in that, the head top surface of described single-blade serrated knife and side scarfweld have hard alloy columnar teeth; The scarfweld of respectively tilting of end face both ends has row's strip carbide alloy, around the hard alloy columnar teeth of end face and the strip carbide alloy and the hard alloy columnar teeth of side around the wearable overlay that is connected.
8, earth pressure balance shield machine cutterhead as claimed in claim 7 is characterized in that, described end face hard alloy columnar teeth is 4 rows, and the hard alloy columnar teeth of two sides respectively is 2 rows; Along the cutter head width, every row's hard alloy columnar teeth is made up of 3 hard alloy columnar teeths, and the height of every hard alloy columnar teeth is 32mm, and the diameter of post tooth is 18mm; The strip carbide alloy at described end face two ends is by 3 strip alloy compositions, and the height of every strip carbide alloy is 32mm, and its width is 15mm.Described cutter head front-back is fixed with netted wearable overlay, and the height of overlay cladding is 125-135mm, and thickness is 5-10mm;
9, earth pressure balance shield machine cutterhead as claimed in claim 8 is characterized in that, is fixed with two circle hobboing cutters on the cutter hub of described twolip hobboing cutter, and the external diameter of described hobboing cutter is 531.3mm, and the center to center distance of two circle hobboing cutters is 100mm; Cutter hub heart portion interlocks bearing; The cutting edge of described hobboing cutter extends to a cutting edge of widening to both sides vertically, and the width of described cutting edge is 23-27mm.
10, earth pressure balance shield machine cutterhead as claimed in claim 6, it is characterized in that, the head top surface of described single-blade serrated knife and side scarfweld have hard alloy columnar teeth, the scarfweld of respectively tilting of end face both ends has row's strip carbide alloy, around the hard alloy columnar teeth of end face and the strip carbide alloy and the hard alloy columnar teeth of side around the wearable overlay that is connected, the cutter head front-back is fixed with netted wearable overlay, the height of netted wearable overlay is 125-135mm, and the thickness of wearable overlay and netted wearable overlay is 5-10mm; Described single-blade serrated knife end face hard alloy columnar teeth is 4 rows, the hard alloy columnar teeth of two sides respectively is 2 rows, and along the cutter head width, every row's hard alloy columnar teeth is made up of 3 hard alloy columnar teeths, the height of every hard alloy columnar teeth is 32mm, and the diameter of post tooth is 18mm; The strip carbide alloy at single-blade serrated knife end face two ends is by 3 strip alloy compositions, and the height of every strip carbide alloy is 32mm, and its width is 15mm; Be fixed with two circle hobboing cutters on the cutter hub of described twolip hobboing cutter, the external diameter of described hobboing cutter is 531.3mm, and two circle hobboing cutter centre distances are 100mm; Cutter hub heart portion interlocks bearing; The cutting edge of described hobboing cutter extends to a cutting edge of widening to both sides vertically, and the width of described cutting edge is 23-27mm.
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| CN2009100590614A CN101539022B (en) | 2009-04-24 | 2009-04-24 | Earth pressure balance shield machine cutterhead |
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| CN2009100590614A CN101539022B (en) | 2009-04-24 | 2009-04-24 | Earth pressure balance shield machine cutterhead |
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| CN101539022B CN101539022B (en) | 2011-10-26 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899980A (en) * | 2010-08-03 | 2010-12-01 | 中铁十三局集团第二工程有限公司 | A protective knife for a scraper knife seat of a shield machine |
| CN101922299A (en) * | 2010-08-02 | 2010-12-22 | 中铁十三局集团第二工程有限公司 | Diversion cutter for shield machine |
| CN101936168A (en) * | 2010-08-04 | 2011-01-05 | 林辉 | Device for expanding adaptability of cutter head of earth pressure balancing (EPB) shield machine to soft ground |
| CN102155238A (en) * | 2011-03-21 | 2011-08-17 | 天津大学 | Exchangeable blade type center cutter for shield machine |
| CN101749027B (en) * | 2010-01-13 | 2012-04-18 | 天津大学 | Multi-adaptable cutterheads for TBMs |
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| CN108168808A (en) * | 2017-12-22 | 2018-06-15 | 武汉大学 | A kind of shield cutter wear test model cutterhead of adjustable structure |
| CN109538227A (en) * | 2018-12-30 | 2019-03-29 | 中船重型装备有限公司 | A kind of novel shield cutterhead for compound stratum |
| CN112855198A (en) * | 2021-01-30 | 2021-05-28 | 安徽唐兴机械装备有限公司 | Cutter disc convenient for replacing cutter head and pipe jacking machine applying cutter disc |
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| CN101749027B (en) * | 2010-01-13 | 2012-04-18 | 天津大学 | Multi-adaptable cutterheads for TBMs |
| CN101922299A (en) * | 2010-08-02 | 2010-12-22 | 中铁十三局集团第二工程有限公司 | Diversion cutter for shield machine |
| CN101899980A (en) * | 2010-08-03 | 2010-12-01 | 中铁十三局集团第二工程有限公司 | A protective knife for a scraper knife seat of a shield machine |
| CN101936168B (en) * | 2010-08-04 | 2013-02-06 | 林辉 | Device for expanding adaptability of cutter head of earth pressure balancing (EPB) shield machine to soft ground |
| CN101936168A (en) * | 2010-08-04 | 2011-01-05 | 林辉 | Device for expanding adaptability of cutter head of earth pressure balancing (EPB) shield machine to soft ground |
| CN102155238A (en) * | 2011-03-21 | 2011-08-17 | 天津大学 | Exchangeable blade type center cutter for shield machine |
| CN102155238B (en) * | 2011-03-21 | 2013-01-02 | 天津大学 | Exchangeable blade type center cutter for shield machine |
| CN103703215A (en) * | 2011-07-01 | 2014-04-02 | 日立造船株式会社 | Boring equipment |
| CN103703215B (en) * | 2011-07-01 | 2016-02-24 | 日立造船株式会社 | Excavating gear |
| CN108168808A (en) * | 2017-12-22 | 2018-06-15 | 武汉大学 | A kind of shield cutter wear test model cutterhead of adjustable structure |
| CN109538227A (en) * | 2018-12-30 | 2019-03-29 | 中船重型装备有限公司 | A kind of novel shield cutterhead for compound stratum |
| CN112855198A (en) * | 2021-01-30 | 2021-05-28 | 安徽唐兴机械装备有限公司 | Cutter disc convenient for replacing cutter head and pipe jacking machine applying cutter disc |
| CN112855198B (en) * | 2021-01-30 | 2022-11-22 | 安徽唐兴装备科技股份有限公司 | Cutter head convenient for replacing cutter head and push bench applying cutter head |
| CN116556977A (en) * | 2023-06-29 | 2023-08-08 | 河南金品建筑工程有限公司 | Rotary excavating equipment for building construction |
| CN116556977B (en) * | 2023-06-29 | 2023-09-15 | 河南金品建筑工程有限公司 | Rotary excavating equipment for building construction |
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| CN101539022B (en) | 2011-10-26 |
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Address after: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Patentee after: China Railway No. 2 Engineering Group Co., Ltd. Address before: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Patentee before: CHINA RAILWAY NO.2 BUREAU ENGINEERING CO., LTD. |