CN206972247U - A kind of Hob for cutting rock, cutter head of shield machine and shield machine - Google Patents
A kind of Hob for cutting rock, cutter head of shield machine and shield machine Download PDFInfo
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- CN206972247U CN206972247U CN201720596592.7U CN201720596592U CN206972247U CN 206972247 U CN206972247 U CN 206972247U CN 201720596592 U CN201720596592 U CN 201720596592U CN 206972247 U CN206972247 U CN 206972247U
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- rock
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- water jet
- cutter
- cutting
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Abstract
The utility model belongs to hard rock drilling technical field of construction, and in particular to a kind of Hob for cutting rock, cutter head of shield machine and shield machine.Hob for cutting rock includes hob head and hobboing cutter cutter ring, in addition to for cutting the rock breaking by water jet device of hard rock.Rock breaking by water jet device is arranged on hob head, and the injection direction of rock breaking by water jet device is arranged with hobboing cutter cutter ring in angle.Cutter head of shield machine includes Hob for cutting rock described above.Shield machine includes cutter head of shield machine described above.The utility model utilizes the expansion rate and length that crackle produced by hobboing cutter extrudes rock mass is improved using water jet, and washes away by broken chip and stone flour in time, so as to improve broken rock speed and volume, reduces dust in air content, reduces tool temperature.
Description
Technical field
The utility model belongs to hard rock drilling technical field of construction, and in particular to a kind of Hob for cutting rock, cutter head of shield machine and
Shield machine.
Background technology
In tunneling boring hard rock tunnel tunneling construction, most commonly mechanical hobboing cutter, can edge on the cutterhead of continuous rotary
Radial direction is some disk cutter by the knife spacing arrangement of setting, the blade incision rock mass to be cut under axial compressive force effect,
Crackle, which interpenetrates, caused by cutter makes rock crushing be split away off into small pieces, and drilling is realized in the lasting rotation of cutterhead and propulsion.
This mode fully relies on mechanism and carries out broken rock, and stock-removing efficiency is difficult to improve.
Utility model content
In order to solve the above technical problems, the utility model proposes technical scheme be：
A kind of Hob for cutting rock, including hob head and hobboing cutter cutter ring, in addition to for cutting the rock breaking by water jet device of hard rock.
Rock breaking by water jet device is arranged on hob head, and the injection direction of rock breaking by water jet device is arranged with hobboing cutter cutter ring in angle.
The Hob for cutting rock that the utility model is related to, high-pressure water jet water conservancy diversion is deflected using the hobboing cutter blade conical surface, makes water-jet
Stream enter hobboing cutter cutter ring injection hard rock acting section, using water jet improve hobboing cutter extruding rock mass produced by crackle expansion rate with
Length, and wash away by broken chip and stone flour in time.So as to improve broken rock speed and volume, reduce dust in air and contain
Amount, reduce tool temperature.
Further improvement as above-mentioned technical proposal：
Rock breaking by water jet device is arranged in hobboing cutter cutter ring both sides.
All arrange high-pressure water jet broken rock device in hobboing cutter cutter ring both sides, on the one hand can further improve broken rock speed and
Volume, still further aspect can make hobboing cutter cutter ring both sides stress identical, so as to avoid the eccentric wear problem of hobboing cutter cutter ring.
Rock breaking by water jet device is arranged in the side of hobboing cutter cutter ring.
For the hobboing cutter closer to the distance from the cutter head of shield machine centre of gyration, larger footpath be present and push out reaction force, this
Kind reaction force easily causes hobboing cutter cutter ring eccentric wear.In order to solve the above problems, in the single-sided arrangement high-pressure water shot of hobboing cutter cutter ring
Broken rock device is flowed, approaches hobboing cutter cutter ring both sides stress, mitigates eccentric wear.Specifically, it is essentially the same to bear both sides in itself for cutter ring
Big cutting reaction force and unidirectional footpath outward thrust, the water jet of addition can mitigate the cutting reaction force of inner side, make cutter
Both sides reaction force difference reduces, so as to mitigate eccentric wear.
The injection direction of rock breaking by water jet device and the angle of hobboing cutter cutter ring are 15~60 degree.
This angular range can be in the case where avoiding rock breaking by water jet device from interfering with hobboing cutter cutter ring, it is ensured that water jet
The distance of ejiction opening and hobboing cutter cutter ring is most short, so as to avoiding high-pressure water jet broken rock device at work because jet length is remote
Influence broken rock speed and volume.
It is deep that the contact length of the water jet that rock breaking by water jet device is formed and hobboing cutter cutter ring is more than hobboing cutter cutter ring incision rock mass
Spend 3~5mm.
High-pressure water jet covers hobboing cutter cutter ring with the contact length of the hobboing cutter cutter ring than hobboing cutter cutter ring intrusive rock body length
Greatly a bit, it can be ensured that effective shear action of the high-pressure water jet to rock mass, so that it is guaranteed that the raising of broken rock volume and speed.
The angle of flare for the water jet that rock breaking by water jet device is formed is 5~30 degree.
This diffusion angular region is able to ensure that incision section of the hobboing cutter cutter ring on rock mass is completely covered in water jet, so that it is guaranteed that
The cutting efficiency of high-pressure water jet.
Rock breaking by water jet device includes shower nozzle and the hydraulic pipeline being connected with shower nozzle.Hob head is provided with geometrical clamp, shower nozzle
It is arranged in geometrical clamp.
According to the cutter head of shield machine of the utility model second aspect, including Hob for cutting rock described above.
Further improvement as above-mentioned technical proposal：
In the circle of outer rim arrangement 1~3 of cutter head of shield machine Hob for cutting rock described above.Be relatively large in diameter for excavated section,
The a fairly large number of situation of hobboing cutter, can be only in the higher circle of cutterhead outer ring linear velocity or a few above-mentioned band rocks breaking by water jet of arrangement
The Hob for cutting rock of device, or only arrange the above-mentioned Hob for cutting rock with rock breaking by water jet device in cutter head center region.So can be with
Overall water under high pressure traffic demand is reduced, so as to save cost.
According to the cutter head of shield machine of the utility model third aspect, including cutter head of shield machine described above.
Compared with prior art, the utility model has the advantage of using produced by water jet raising hobboing cutter extruding rock mass
The expansion rate and length of crackle, and wash away by broken chip and stone flour in time.So as to improve broken rock speed and volume, subtract
Few dust in air content, reduces tool temperature.
Brief description of the drawings
The utility model will be hereinafter described in more detail based on embodiment and refer to the attached drawing.Wherein：
Fig. 1 schematically illustrates the Hob for cutting rock of embodiment 1 in the utility model；
Fig. 2 schematically illustrates the Hob for cutting rock of embodiment 1 in the utility model；
Fig. 3 schematically illustrates the working condition of the Hob for cutting rock of embodiment 1 in the utility model；
Fig. 4 schematically illustrates the working condition of the Hob for cutting rock of embodiment 1 in the utility model；
Fig. 5 schematically illustrates the Hob for cutting rock of embodiment 2 in the utility model；
Fig. 6 schematically illustrates the cutter head of shield machine in the utility model.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not according to the ratio of reality.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but therefore not limited
The scope of protection of the utility model processed.
Embodiment 1
Fig. 1 and Fig. 2 schematically illustrates the Hob for cutting rock of embodiment 1 in the utility model, and Fig. 3 and Fig. 4 are schematically shown
The working condition of the Hob for cutting rock of embodiment 1 in the utility model.As depicted in figs. 1 and 2, in the utility model embodiment
Hob for cutting rock 10, including hob head 1 and hobboing cutter cutter ring 2, in addition to for cutting the rock breaking by water jet device 3 of hard rock.Water jet
Broken rock device 3 is arranged on hob head 1, and the injection direction of rock breaking by water jet device 3 is arranged with hobboing cutter cutter ring 2 in angle.
Rock breaking by water jet device 3 is arranged in the both sides of hobboing cutter cutter ring 2.Rock breaking by water jet device 3 includes shower nozzle 31 and is connected with shower nozzle 31
Hydraulic pipeline 32.Hob head 1 is provided with geometrical clamp 4, and shower nozzle 31 is arranged in geometrical clamp 4.Geometrical clamp 4 is fixed by welding in rolling
On tool rest 1, it is readily appreciated that, geometrical clamp 4 can be fixed on hob head 1 using various ways, such as clamping, threaded connection
Deng.In a unshowned embodiment, geometrical clamp 4 is removably secured on hob head 1.Water under high pressure passes through water delivery
Pipeline 32 is transported to shower nozzle 31.Geometrical clamp 4 includes elastic clip tieholen, and nozzle layout of sprinkler can utilize bolt to make bullet in springhole
Property holes for clamping shrink and clamp the external cylindrical surface of shower nozzle 31.It is readily appreciated that, can be fixed on shower nozzle using various ways
In elastic shrinkage sky in clamp 4, such as holding screw, locking back-up ring, expansion connecting sleeve etc..As shown in figure 3, in the present embodiment
The Hob for cutting rock being related to, high-pressure water jet water conservancy diversion is deflected using the hobboing cutter blade conical surface, water jet is entered hobboing cutter cutter ring injection
Hard rock acting section, the expansion rate and length of crackle produced by improving hobboing cutter extruding rock mass using water jet, and in time will be broken
Chip and stone flour wash away, so as to improve broken rock speed and volume, reduce dust in air content, reduce tool temperature.
High-pressure water jet broken rock device is all arranged in hobboing cutter cutter ring both sides, on the one hand can further improve broken rock speed and volume, in addition
On the one hand hobboing cutter cutter ring both sides stress can be made identical, so as to avoid the eccentric wear problem of hobboing cutter cutter ring.
As shown in figure 3, the angle α of the injection direction of rock breaking by water jet device 3 and hobboing cutter cutter ring 2 is preferably 15~60 degree.
This angular range can be in the case where avoiding rock breaking by water jet device and hobboing cutter cutter ring from interfering, it is ensured that water jet ejiction opening with
The distance of hobboing cutter cutter ring is most short, influences broken rock so as to avoid high-pressure water jet broken rock device at work because jet length is remote
Speed and volume.The contact length of the water jet that rock breaking by water jet device 3 is formed and hobboing cutter cutter ring 2 is more than hobboing cutter cutter ring incision rock
3~5mm of body depth.High-pressure water jet covers hobboing cutter cutter ring with the contact length of hobboing cutter cutter ring than hobboing cutter cutter ring injection rock mass depth
Greatly a bit, it can be ensured that effective shear action of the high-pressure water jet to rock mass, so that it is guaranteed that the raising of broken rock volume and speed.
As shown in figure 4, the angle of flare β for the water jet that rock breaking by water jet device 3 is formed is preferably 5~30 degree.Generally preferably
From fan nozzle or spinning conical nozzle.This diffusion angular region is able to ensure that hobboing cutter cutter ring is completely covered in water jet
Incision section on rock mass, so that it is guaranteed that the cutting efficiency of high-pressure water jet.The water jet injection that rock breaking by water jet device 3 is formed
The angle γ that direction deflects towards the direction of advance of Hob for cutting rock 10 is 0~20 degree.This range of deflection angles is able to ensure that water-jet
Incision section of the hobboing cutter cutter ring on rock mass is completely covered in stream, thereby further ensures that the cutting efficiency of high-pressure water jet.
Embodiment 2
Fig. 5 schematically illustrates the Hob for cutting rock 11 of embodiment 2 in the utility model.As shown in figure 5, the utility model is real
The Hob for cutting rock 11 in example, including hob head 21 and hobboing cutter cutter ring 22 are applied, in addition to for cutting the rock breaking by water jet dress of hard rock
Put 23.Rock breaking by water jet device 23 is arranged on hob head 21, and the injection direction of rock breaking by water jet device 23 and hobboing cutter knife
Circle 22 is arranged in angle.Unique difference with the Hob for cutting rock 12 described in above-described embodiment 1 is that the water jet in the present embodiment is broken
Rock device 23 is arranged in the side of hobboing cutter cutter ring 22.
The Hob for cutting rock being related in the utility model embodiment, it is inclined to high-pressure water jet water conservancy diversion using the hobboing cutter blade conical surface
Turn, water jet is entered hobboing cutter cutter ring injection hard rock acting section, crackle produced by improving hobboing cutter extruding rock mass using water jet
Expansion rate and length, and wash away by broken chip and stone flour in time, so as to improve broken rock speed and volume, reduce air
Middle dust content, reduce tool temperature.For the hobboing cutter closer to the distance from the cutter head of shield machine centre of gyration, larger radial direction be present
Extrapolation reaction force, this reaction force easily cause hobboing cutter cutter ring eccentric wear.In order to solve the problems, such as hobboing cutter cutter ring eccentric wear, rolling
The single-sided arrangement high-pressure water jet broken rock device of knife cutter ring, approaches hobboing cutter cutter ring both sides stress, mitigates eccentric wear.
Fig. 6 schematically illustrates the cutter head of shield machine 100 in the utility model.It is as shown in fig. 6, new according to this practicality
The cutter head of shield machine 100 of type, including Hob for cutting rock 10 and 11 described above.It is relatively large in diameter for excavated section, hobboing cutter quantity
More situation, can be only above-mentioned with rock breaking by water jet device in the higher circle of the outer ring linear velocity of cutterhead or a few arrangements
Hob for cutting rock 10, or the above-mentioned Hob for cutting rock 10 or 11 with rock breaking by water jet device only is arranged in cutter head center region, preferably exist
The circle Hob for cutting rock 10 described above with rock breaking by water jet device of outer ring arrangement 1~3 of cutterhead.Overall high pressure can so be reduced
Water-carrying capacity demand, so as to save cost.
Shield machine in the utility model, including cutter head of shield machine 100 described above.
Although the utility model is described by reference to preferred embodiment, the scope of the utility model is not being departed from
In the case of, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as being not present
Structural hazard, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The utility model is simultaneously
It is not limited to specific embodiment disclosed herein, but all technical schemes including falling within the scope of the claims.
Claims (10)
1. a kind of Hob for cutting rock, including hob head and hobboing cutter cutter ring, it is characterised in that broken including the water jet for cutting hard rock
Rock device；The rock breaking by water jet device is arranged on the hob head, and the injection direction of the rock breaking by water jet device
Arranged with the hobboing cutter cutter ring in angle.
2. Hob for cutting rock according to claim 1, it is characterised in that the rock breaking by water jet device is arranged in the hobboing cutter
Cutter ring both sides.
3. Hob for cutting rock according to claim 1, it is characterised in that the rock breaking by water jet device is arranged in the hobboing cutter
The side of cutter ring.
4. Hob for cutting rock according to any one of claim 1 to 3, it is characterised in that the rock breaking by water jet device
The angle of injection direction and the hobboing cutter cutter ring is 15~60 degree.
5. Hob for cutting rock according to any one of claim 1 to 3, it is characterised in that the rock breaking by water jet device shape
Into the contact length of water jet and the hobboing cutter cutter ring be more than 3~5mm of hobboing cutter cutter ring incision rock mass depth.
6. Hob for cutting rock according to any one of claim 1 to 3, it is characterised in that the rock breaking by water jet device shape
Into water jet angle of flare be 5~30 degree.
7. Hob for cutting rock according to any one of claim 1 to 3, it is characterised in that the rock breaking by water jet device bag
Include shower nozzle and the hydraulic pipeline being connected with the shower nozzle；The hob head is provided with geometrical clamp；The nozzle layout of sprinkler is described solid
In clamp.
8. a kind of cutter head of shield machine, it is characterised in that including the Hob for cutting rock any one of claims 1 to 3.
9. cutter head of shield machine according to claim 8, it is characterised in that arrange 1~3 in the outer rim of the cutter head of shield machine
Enclose the Hob for cutting rock any one of claims 1 to 3.
10. a kind of shield machine, it is characterised in that including the cutter head of shield machine described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720596592.7U CN206972247U (en) | 2017-05-25 | 2017-05-25 | A kind of Hob for cutting rock, cutter head of shield machine and shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720596592.7U CN206972247U (en) | 2017-05-25 | 2017-05-25 | A kind of Hob for cutting rock, cutter head of shield machine and shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206972247U true CN206972247U (en) | 2018-02-06 |
Family
ID=61410347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720596592.7U Active CN206972247U (en) | 2017-05-25 | 2017-05-25 | A kind of Hob for cutting rock, cutter head of shield machine and shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206972247U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165651A (en) * | 2017-05-25 | 2017-09-15 | 中国铁建重工集团有限公司 | A kind of Hob for cutting rock, cutter head of shield machine and shield machine |
| CN110593888A (en) * | 2019-10-25 | 2019-12-20 | 中铁工程装备集团有限公司 | Heading machine with high-pressure water jet-mechanical coupling integrated disc-shaped hob |
| CN111173532A (en) * | 2019-12-30 | 2020-05-19 | 上海市基础工程集团有限公司 | Composite cutter head suitable for construction in complex hard soil layer |
-
2017
- 2017-05-25 CN CN201720596592.7U patent/CN206972247U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165651A (en) * | 2017-05-25 | 2017-09-15 | 中国铁建重工集团有限公司 | A kind of Hob for cutting rock, cutter head of shield machine and shield machine |
| CN110593888A (en) * | 2019-10-25 | 2019-12-20 | 中铁工程装备集团有限公司 | Heading machine with high-pressure water jet-mechanical coupling integrated disc-shaped hob |
| CN110593888B (en) * | 2019-10-25 | 2021-11-19 | 中铁工程装备集团有限公司 | Heading machine with high-pressure water jet-mechanical coupling integrated disc-shaped hob |
| CN111173532A (en) * | 2019-12-30 | 2020-05-19 | 上海市基础工程集团有限公司 | Composite cutter head suitable for construction in complex hard soil layer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 410100 No. 88 East 7 Line, Changsha Economic and Technological Development Zone, Hunan Province Patentee after: China Railway Construction Heavy Industry Group Co., Ltd. Address before: 410100 No. 88 Dongqi Road, Jingkai District, Changsha City, Hunan Province Patentee before: China Railway Construction Heavy Industry Co.,Ltd. |