CN109505618A - A kind of combined type rock tunnel(ling) machine cutterhead - Google Patents
A kind of combined type rock tunnel(ling) machine cutterhead Download PDFInfo
- Publication number
- CN109505618A CN109505618A CN201811545720.0A CN201811545720A CN109505618A CN 109505618 A CN109505618 A CN 109505618A CN 201811545720 A CN201811545720 A CN 201811545720A CN 109505618 A CN109505618 A CN 109505618A
- Authority
- CN
- China
- Prior art keywords
- hobboing cutter
- spoke
- edge
- cutterhead
- positive
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- 239000011435 rock Substances 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 claims description 22
- 238000005096 rolling process Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002689 soil 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
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
A kind of combined type rock tunnel(ling) machine cutterhead, spoke (1) including cutterhead, the central hob (3a) for the twolip installed in the middle part of cutterhead, the single-blade installed on spoke (1) positive hobboing cutter (3b), the edge hobboing cutter (3c) for the single-blade installed on two flanks of spoke (1) end；Two sides in the middle part of spoke (1) are also equipped with scraper (4), and the radial position of scraper (4) is between positive hobboing cutter (3b)；It is characterized by: the edge of two flanks of described spoke (1) end is mounted on scraper plate (2), height of the scraper plate (2) and scraper (4) beyond spoke (1) is 110-125mm, and the height of central hob (3a), positive hobboing cutter (3b) and edge hobboing cutter (3c) beyond spoke (1) is 155-165mm.This kind of cutterhead can be effectively reduced combined type rock tunnel(ling) machine and shut down number of changing knife, reduce construction risk, shorten the construction period.
Description
Technical field
The present invention relates to a kind of rock tunnel(ling) machine cutterheads.
Background technique
Combined type rock tunnel(ling) machine is suitable for the driving of soft rock and hard rock mixing stratum.Its cutterhead is as rock tunnel(ling) machine
Core component plays fractured rock and support face function in tunneling process.Hobboing cutter on cutterhead cuts rock,
It is broken；Scraping of the scraper for soil and fractured rock.Hobboing cutter serious wear in tunneling process is such as handled, gently then not in time
Lower drivage efficiency, heavy side causes an accident, and brings construction risk.Engineering experience shows inspection, replacement and the cutterhead maintenance of hobboing cutter
The equal activity durations account for about the one third of tunneling construction total time；Expense for hobboing cutter replacement accounts for about the three of tunneling construction expense
/ mono-.Therefore, the abrasion of hobboing cutter is reduced, to improve construction efficiency, lowering operating expenses becomes urgent problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of combined type rock tunnel(ling) machine cutterhead, which can effectively reduce the mill of hobboing cutter
Damage reduces combined type rock tunnel(ling) machine and shuts down number of changing knife, improve drivage efficiency, reduce construction risk, shortens the construction period.
The technical scheme adopted by the invention for realizing the object of the invention is a kind of combined type rock tunnel(ling) machine cutterhead, including
The positive hobboing cutter for the single-blade installed on the central hob of the twolip installed in the middle part of the spoke of cutterhead, cutterhead, spoke, the two of spoke end
The edge hobboing cutter for the single-blade installed on flank；Two sides in the middle part of spoke are also equipped with scraper, and the radial position of scraper is located at just
Between hobboing cutter；It is characterized by: the edge of two flanks of the spoke end is mounted on scraper plate, the scraper plate and scraper
Height beyond spoke is 110-125mm, and the height of central hob, positive hobboing cutter and edge hobboing cutter beyond spoke is 155-
165mm。
Compared with prior art, the beneficial effects of the present invention are:
The scraper plate that the edge of two flanks of spoke end is added, can well, quickly will be by hobboing cutter fragmented rock and soft
Rock blows into Tu Cang from the gap of spoke side flap edge, is effectively reduced abrasion of the rock slag to cutter.Central hob on cutterhead,
The height that positive hobboing cutter, edge hobboing cutter are higher by spoke is 155-165mm, this highly can be very good breaking hard rock；It is higher by spoke
Height be 110-125mm the height difference of scraper and scraper plate and three kinds of hobboing cutters be 30-55mm, hobboing cutter that this height difference is formed is scraped
Knife and scraper plate high level matches with low level, hobboing cutter elder generation depth break rock stratum, and fragmented rock and soft rock are blown into Tu Cang by scraper plate and scraper, can be more
It is effectively reduced abrasion of the rock slag to cutter, and then combined type rock tunnel(ling) machine is effectively reduced and shuts down number of changing knife, reduces construction
Risk shortens the construction period.
Further, spoke of the invention is 6, and edge hobboing cutter is 12, in 12 shaft and cutterhead edge hobboing cutter
The inclination angle of mandrel is each unequal, is gradually increased to 70 ° from 9 °；Wherein the installation radius of outermost two edge hobboing cutters is equal,
The small 8-10mm of installation radius of the outermost two edge hobboing cutters of the installation radius ratio of the edge hobboing cutter in secondary outside.
12 edge hobboing cutters are gradually arranged step by step using 9 ° -70 ° of inclination angle, increase cutterhead excavation face and Tunnel wall
Interface shape reduces the native extruding load to edge hobboing cutter of blocky quarrel fallen from excavation face, and then reduces edge hobboing cutter
Bearing load extends the service life of edge hobboing cutter, further reduced combined type rock tunnel(ling) machine and shuts down number of changing knife.
Further, positive hobboing cutter of the invention is 45-55 handle, by installation radius from as low as successively volume is i-th greatly, i
=1,2,3 ... I, I be positive hobboing cutter number, I=45-55；Wherein, the 1st the installation radius R of positive hobboing cutter1For 75-90mm,
The installation radius R of 2 positive hobboing cutters2For 180-210mm, remaining is i-th the installation radius R of positive hobboing cutteri, it is determined by following formula:
In formula, i=3,4 ... I.
On the one hand the installation radius of each positive hobboing cutter determined in the above manner meets the broken width when work of positive hobboing cutter
Degree；On the other hand the positive hobboing cutter packing density in outside is greater than the packing density of the positive hobboing cutter in inside, and makes all positive hobboing cutter work
When breaking ring area equation, avoid the prior art by installation semidiameter is equal and carry out positive hobboing cutter arrangement, lead to outside hobboing cutter
Breaking ring area is greater than inside hobboing cutter breaking ring area, the problem of the hob abrasion serious wear of outside；So that the inside and outside knife of sidewindering
Abrasion equilibrium, hence it is evident that reduce the shutdown number of changing knife of positive hobboing cutter.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Specific embodiment
Fig. 1 is shown, and a kind of specific embodiment of the invention is a kind of combined type rock tunnel(ling) machine cutterhead, including cutterhead
Spoke 1, the central hob 3a of the twolip installed in the middle part of cutterhead, the single-blade installed on spoke 1 positive hobboing cutter 3b, 1 end of spoke
Two flanks on the edge hobboing cutter 3c of single-blade that installs；The two sides at 1 middle part of spoke are also equipped with scraper 4, and the radial position of scraper 4
Setting between positive hobboing cutter 3b；It is characterized by: the edge of two flanks of 1 end of spoke is mounted on scraper plate 2, it is described
The height of scraper plate 2 and scraper 4 beyond spoke 1 be 110-125mm, central hob 3a, positive hobboing cutter 3b and edge hobboing cutter 3c are super
The height of spoke 1 is 155-165mm out.
The spoke 1 of this example is 6, and edge hobboing cutter 3c is 12, and 12 the shaft of edge hobboing cutter 3c and the central axis of cutterhead
Inclination angle it is each unequal, be gradually increased to 70 ° from 9 °；Wherein the installation radius of outermost two edges hobboing cutter 3c is equal, secondary
The small 8-10mm of installation radius of the outermost two edges hobboing cutter 3c of the installation radius ratio of the edge hobboing cutter 3c in outside.
The positive hobboing cutter 3b of this example is 45-55 handle, by installation radius from as low as big successively compile be i-th, i=1,2,3 ...
I, I be positive hobboing cutter number, I=45-55；Wherein, the 1st the installation radius R of positive hobboing cutter1For 75-90mm, the 2nd positive hobboing cutter
Installation radius R2For 180-210mm, remaining is i-th the installation radius R of positive hobboing cutteri, it is determined by following formula:
In formula, i=3,4 ... I.
Claims (3)
1. a kind of combined type rock tunnel(ling) machine cutterhead, the central hob for the twolip that spoke (1), cutterhead middle part including cutterhead are installed
The positive hobboing cutter (3b) for the single-blade installed on (3a), spoke (1), the edge rolling for the single-blade installed on two flanks of spoke (1) end
Knife (3c)；Two sides in the middle part of spoke (1) are also equipped with scraper (4), and the radial position of scraper (4) be located at positive hobboing cutter (3b) it
Between；It is characterized by: the edge of two flanks of described spoke (1) end is mounted on scraper plate (2), the scraper plate (2) and
Height of the scraper (4) beyond spoke (1) is 110-125mm, and central hob (3a), positive hobboing cutter (3b) and edge hobboing cutter (3c) are super
The height of spoke (1) is 155-165mm out.
2. combined type rock tunnel(ling) machine cutterhead according to claim 1, it is characterised in that:
The spoke (1) is 6, and edge hobboing cutter (3c) is 12, and 12 the shaft of edge hobboing cutter (3c) and the center of cutterhead
The inclination angle of axis is each unequal, is gradually increased to 70 ° from 9 °；The wherein installation radius phase of outermost two edge hobboing cutters (3c)
Deng the small 8- of installation radius of the outermost two edge hobboing cutters (3c) of the installation radius ratio of the edge hobboing cutter (3c) in secondary outside
10mm。
3. combined type rock tunnel(ling) machine cutterhead according to claim 1, it is characterised in that:
The positive hobboing cutter (3b) is 45-55 handle, by installation radius from as low as big successively compile be i-th, i=1,2,3 ... I, I
Be positive hobboing cutter number, I=45-55；Wherein, the 1st the installation radius R of positive hobboing cutter1For 75-90mm, the 2nd the peace of positive hobboing cutter
Fill radius R2For 180-210mm, remaining is i-th the installation radius R of positive hobboing cutteri, it is determined by following formula:
In formula, i=3,4 ... I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545720.0A CN109505618A (en) | 2018-12-17 | 2018-12-17 | A kind of combined type rock tunnel(ling) machine cutterhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545720.0A CN109505618A (en) | 2018-12-17 | 2018-12-17 | A kind of combined type rock tunnel(ling) machine cutterhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109505618A true CN109505618A (en) | 2019-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811545720.0A Pending CN109505618A (en) | 2018-12-17 | 2018-12-17 | A kind of combined type rock tunnel(ling) machine cutterhead |
Country Status (1)
| Country | Link |
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| CN (1) | CN109505618A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788316A (en) * | 2023-02-09 | 2023-03-14 | 浙大城市学院 | Propelling and crushing device for drilling hard rock layer |
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| CN107545124A (en) * | 2017-09-29 | 2018-01-05 | 天津大学 | The Forecasting Methodology of the normal section disk cutter wear condition of rock tunnel development machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115788316A (en) * | 2023-02-09 | 2023-03-14 | 浙大城市学院 | Propelling and crushing device for drilling hard rock layer |
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