CN206972246U - A kind of broken rock cutter, cutter head of shield machine and shield machine - Google Patents
A kind of broken rock cutter, cutter head of shield machine and shield machine Download PDFInfo
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- CN206972246U CN206972246U CN201720595192.4U CN201720595192U CN206972246U CN 206972246 U CN206972246 U CN 206972246U CN 201720595192 U CN201720595192 U CN 201720595192U CN 206972246 U CN206972246 U CN 206972246U
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- cutter
- broken rock
- water jet
- shield machine
- face
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Abstract
The utility model provides a kind of broken rock cutter, including cutter hub and rake face, and the detachable Water Jet Cutting device being arranged on cutter hub, is provided between the outlet of Water Jet Cutting device and rake face and leads and turn face.Cutter head of shield machine provided by the utility model includes broken rock cutter described above.Shield machine provided by the utility model includes cutter head of shield machine described above.The utility model can cut broken rock by high-pressure water jet and machinery knives collective effect and improve efficiency of breaking rock, and can reduce tool temperature and reduce the dust content in air.
Description
Technical field
The utility model belongs to rock and soil drilling technical field of construction, and in particular to a kind of broken rock cutter, cutter head of shield machine and
Shield machine.
Background technology
In rock and soil drilling construction, most commonly mechanical cutting tool is made up of one or more cutters tooth.Each cutter tooth
Blade is crossed to form by rake face and rear knife face, blade cuts ground to be cut under axial compressive force effect, under thrust
Broken front ground realizes drilling.Aforesaid way fully relies on mechanism and carries out broken rock, and stock-removing efficiency is difficult to improve.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of broken rock cutter, shield for including Water Jet Cutting device
Structure machine knife disk and shield machine, broken rock can be cut by high-pressure water jet and machinery knives collective effect and improve efficiency of breaking rock, and
And tool temperature can be reduced and reduce the dust content in air.
In order to solve the above technical problems, the utility model proposes technical scheme be：
A kind of broken rock cutter, including cutter hub and rake face, and the detachable Water Jet Cutting device being arranged on cutter hub, water
It is provided with to lead between the outlet of jet cutting device and rake face and turns face.
Cutter cuts rock mass under the active force perpendicular to rock mass surface, and rake face is under parallel to rock mass surface reaction forces
Rock mass is pushed, caused crackle makes part rock depart from rock mass, realizes cutting.The high-pressure water jet that Water Jet Cutting device is formed
Behind the position contacted into rake face with rock mass, the generation and extension of crackle can be promoted using the pressure of jet, so as to improve
Stock-removing efficiency, and high-pressure water jet can reduce tool temperature and reduce dust content.In order to ensure Water Jet Cutting device
The high-pressure water jet of formation enters the position that rake face contacts with rock mass, and the utility model is first ejected into knife using high-pressure water jet
On body, recycling, which is led, to be turned face and water jet is close to rake face flowing, and eventually enters into the position that rake face contacts with rock mass.Together
When, using the Water Jet Cutting device of detachable, it can be ensured that the installation and replacing of cutter are convenient.
Further improvement as above-mentioned technical proposal：
The injection direction of Water Jet Cutting device is arranged with rake face in angle.
The injection direction of high-pressure water jet is arranged with rake face in angle, can reduce the resistance of high-pressure water jet, so as to
Being lost along stroke pressure for high-pressure water jet is reduced, so as to improve efficiency of breaking rock.
Angle is 15~45 degree.
Angle control mainly reduces high-pressure water jet in the range of this and is ejected into the backwash after cutter hub, reduces unavailable energy
Consumption, can also reduce impact wear of the water jet to cutter hub.
Water Jet Cutting device includes nozzle and the joint being connected with nozzle, and cutter hub includes being used for the installation for arranging nozzle
Hole, joint are threadedly coupled with cutter hub.
The removably arrangement Water Jet Cutting device being connected through a screw thread, can reach installation and change and easily imitate
Fruit.
A diameter of 2~10mm of nozzle.
The diameter of nozzle is maintained at pressure and the stream that this scope is able to ensure that required for the work of Water Jet Cutting device
Amount.
Lead that to turn face be arc surface.
This circular arc lead turn face can really high-pressure water jet through leading turn deflecting facet flow into rake face when, it is ensured that water under high pressure
Jet flows to consuming little energy in change procedure.
The radius of arc surface is 10~20 times of the diameter of the nozzle.
Circular arc lead turn face radius control in the range of this, primarily to high-pressure water jet after ejection with leading
The energy for turning to consume jet deflection in the finite length of face contact is smaller.
Lead and turn to include erosive wear resistant material layer on face and rake face, lead turn the surface roughness in face and rake face≤
Ra0.8。
This erosive wear resistant material layer can improve broken rock cutting-tool's used life and reliability.
This erosive wear resistant material layer can improve broken rock cutting-tool's used life and reliability, it is ensured that surface roughness
Surface roughness≤Ra0.8 scope can ensure to reduce as far as possible high-pressure water jet lead turn on face and rake face along stroke pressure
Loss, further to avoid reducing stock-removing efficiency.
According to the cutter head of shield machine of the utility model second aspect, including broken rock cutter described above.
According to the shield machine of the utility model third aspect, including cutter head of shield machine described above.
The broken rock cutter that the utility model is related to, compared with prior art, as a result of high-pressure water jet can be formed
Water Jet Cutting device coordinates cutting broken rock with machinery knives, can be during machinery knives carry out cutting broken rock simultaneously
Promote the generation and extension of crackle using the pressure of high-pressure water jet, so as to improve stock-removing efficiency, and high-pressure water jet can be with
Reduce tool temperature and reduce dust content.
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 broken rock cutter in the utility model embodiment.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not according to the ratio of reality.Respectively marked in figure
Number represent：1 cutter hub；2nd, rake face 3, Water Jet Cutting device；31st, nozzle；32nd, joint；33rd, mounting hole；4th, lead and turn face；41
Arc surface.
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.
Fig. 1 schematically illustrates the broken rock cutter 10 in the utility model embodiment.As shown in figure 1, the utility model is real
The broken rock cutter 10 in example, including cutter hub 1 and rake face 2 are applied, and the detachable Water Jet Cutting device 3 being arranged on cutter hub 1,
It is provided with to lead between the outlet of Water Jet Cutting device 3 and rake face 2 and turns face 4.Lead that to turn face 4 be arc surface.Water Jet Cutting device 3
The joint 32 being connected including nozzle 31 and with nozzle 31, cutter hub 1 include being used for the mounting hole 33 for arranging nozzle 31, joint 32 and knife
Body 1 is threadedly coupled, and is fixed and is sealed nozzle 31.The injection direction of nozzle 31 arranges that angle α is preferably 15 with rake face in angle
~45 degree.When flowing into rake face by arc surface deflection, high-pressure water jet flows to energy in change procedure and disappeared high-pressure water jet
Consumption is few.The injection direction of high-pressure water jet is arranged with rake face in angle, can reduce the resistance of high-pressure water jet, so as to reduce
High-pressure water jet loses along stroke pressure, so as to improve efficiency of breaking rock.Angle α control 15~45 degree in the range of this mainly
It is to reduce high-pressure water jet to be ejected into the backwash after cutter hub, reduces useless energy consumption, impact of the water jet to cutter hub can also be reduced
Abrasion.The removably arrangement Water Jet Cutting device being connected through a screw thread, can reach installation and change easily effect.
As shown in figure 1, the diameter d for the nozzle 31 that the broken rock cutter 10 of the present embodiment includes is preferably 2~10mm.Spray
The diameter of mouth is maintained at pressure and the flow that this scope is able to ensure that required for the work of Water Jet Cutting device.Arc surface 41
Radius R be 10~20 times of diameter d of the nozzle.Circular arc leads the radius control for turning face in the range of this, is mainly
High-pressure water jet after ejection with to lead the energy for turning to consume jet deflection in the finite length that face contacts smaller.Specifically
For, it is that it is smaller that radius gets over lossy because energy loss when high-pressure water jet flow direction changes is relevant with radius of turn.High pressure
Water jet leaves after nozzle that pressure only can be more and more lower under air and the drag effect of solid wall surface friction, and water jet and leading turns
Face contact distance is longer, and the pressure loss is bigger caused by friction, so to reduce turning energy loss and frictional distance loss
Between obtain balance, in as far as possible short distance with try one's best big radius complete deflection.
What the broken rock cutter 10 of the present embodiment included, which lead, turns to include erosive wear resistant material layer on face 4 and rake face 2.This
Individual erosive wear resistant material layer can improve broken rock cutting-tool's used life and reliability.Meanwhile lead the table for turning face and rake face
Surface roughness≤Ra0.8.Ensure this range of surface roughness can ensure to reduce as far as possible high-pressure water jet lead turn face and before
Being lost along stroke pressure on knife face, further to avoid reducing stock-removing efficiency.
The broken rock cutter that the utility model is related to, machinery knives cut rock mass under the active force perpendicular to rock mass surface,
Rake face pushes rock mass under parallel to rock mass surface reaction forces, and caused crackle makes part rock depart from rock mass, realizes cutting.
The high-pressure water jet that Water Jet Cutting device is formed first is ejected on cutter hub, and recycling, which is led, to be turned face and water jet is close to rake face stream
It is dynamic, and the position that rake face contacts with rock mass is eventually entered into, promote the generation and extension of crackle using the pressure of high-pressure water jet,
So as to improve stock-removing efficiency, and high-pressure water jet can reduce tool temperature and reduce dust content.Meanwhile using detachable
Water Jet Cutting device, it can be ensured that the installation of cutter and change convenient, be further noted that efficiency of construction.
According to cutter head of shield machine of the present utility model, including broken rock cutter 10 described above.
According to shield machine of the present utility model, including cutter head of shield machine 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 broken rock cutter, including cutter hub and rake face, it is characterised in that including the detachable water being arranged on the cutter hub
Jet cutting device, it is provided between the outlet of the Water Jet Cutting device and rake face and leads and turn face.
2. broken rock cutter according to claim 1, it is characterised in that the injection direction of the Water Jet Cutting device and institute
Rake face is stated to arrange in angle.
3. broken rock cutter according to claim 2, it is characterised in that the angle is 15~45 degree.
4. broken rock cutter according to any one of claim 1 to 3, it is characterised in that the Water Jet Cutting device bag
Include nozzle and the joint being connected with the nozzle；The cutter hub includes being used for the mounting hole for arranging the nozzle；The joint with
The cutter hub threaded connection.
5. broken rock cutter according to claim 4, it is characterised in that a diameter of 2~10mm of the nozzle.
6. broken rock cutter according to claim 4, it is characterised in that described to lead that to turn face be arc surface.
7. broken rock cutter according to claim 6, it is characterised in that the radius of the arc surface is the diameter of the nozzle
10~20 times.
8. broken rock cutter according to any one of claim 1 to 3, it is characterised in that described lead turns on face and rake face
It is described to lead the surface roughness≤Ra0.8 for turning face and rake face including erosive wear resistant material layer.
9. a kind of cutter head of shield machine, it is characterised in that including the broken rock cutter any one of the 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 |
|---|---|---|---|
| CN201720595192.4U CN206972246U (en) | 2017-05-25 | 2017-05-25 | A kind of broken rock cutter, cutter head of shield machine and shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595192.4U CN206972246U (en) | 2017-05-25 | 2017-05-25 | A kind of broken rock cutter, cutter head of shield machine and shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206972246U true CN206972246U (en) | 2018-02-06 |
Family
ID=61410911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720595192.4U Active CN206972246U (en) | 2017-05-25 | 2017-05-25 | A kind of broken rock cutter, cutter head of shield machine and shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206972246U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165646A (en) * | 2017-05-25 | 2017-09-15 | 中国铁建重工集团有限公司 | A kind of broken rock cutter, cutter head of shield machine and shield machine |
| CN110593887A (en) * | 2019-10-25 | 2019-12-20 | 中铁工程装备集团有限公司 | High-pressure water jet-mechanical coupling integrated rock breaking disc type hob and rock breaking method |
-
2017
- 2017-05-25 CN CN201720595192.4U patent/CN206972246U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165646A (en) * | 2017-05-25 | 2017-09-15 | 中国铁建重工集团有限公司 | A kind of broken rock cutter, cutter head of shield machine and shield machine |
| CN110593887A (en) * | 2019-10-25 | 2019-12-20 | 中铁工程装备集团有限公司 | High-pressure water jet-mechanical coupling integrated rock breaking disc type hob and rock breaking method |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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. |