CN207245713U - Suitable for the broken rock cutterhead of open type development machine - Google Patents
Suitable for the broken rock cutterhead of open type development machine Download PDFInfo
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- CN207245713U CN207245713U CN201720560306.1U CN201720560306U CN207245713U CN 207245713 U CN207245713 U CN 207245713U CN 201720560306 U CN201720560306 U CN 201720560306U CN 207245713 U CN207245713 U CN 207245713U
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Abstract
The utility model discloses a kind of broken rock cutterhead suitable for open type development machine, including cutterhead body, cutterhead body is made of cutterhead, the multiple toolboxs being distributed on cutterhead；" [" shape structure that cutterhead is made of disk panel and gusset plate；Multiple compound tool bits that each toolbox is fixed on by tool apron and arrangement on tool apron form；Tool apron is made of the radial seat being radially fixed on the disk panel and the axial seat being axially fixed in gusset plate；Compound tool bit is made of the polycrystalline diamond layer that the tungsten carbide being made of cylinder and hemisphere of sheet handle of a knife, integrative-structure serves as a contrast seat and is compounded in hemisphere external surface；Cylinder is fixed on the sheet handle of a knife, and sheet handle of a knife is embedded in radial seat and axial seat.The utility model changes the rock breaking mechanism of traditional open TBM cutterheads, and cutter rock in working angles are extruded is cut to chip in a manner of sliding deformation, greatly reduces the thrust of hydraulic system.
Description
Technical field
Open type development machine is the utility model is related to, more particularly, to the broken rock cutterhead suitable for open type development machine.
Background technology
With career developments such as China's water conservancy, traffic, hydroelectric generations, hard rock TBM engineering technology is more and more extensive to be applied to
The engineerings such as diversion tunnel, Rail Highway tunnel, rich experience is have accumulated for tunneler construction.Hard rock mole mainly has unlimited
The types such as formula, single shield, double shields, mixed type, according to requirement of engineering and engineering geological condition to select suitable development machine class
Type.Wherein, open type development machine is to utilize supporting mechanism stretching hole wall, to bear counter-force and the reaction torque realization pick pushed ahead
Into.Open type development machine generally consists of the following parts：Cutter head component, cutterhead bearing and cutterhead sealing, cutter head support housing,
Rack, support and propulsion system, cutter rotary mechanism, lower support and adjusted device, slag-tapping device, laser guidance device, dedusting
Device and auxiliary device etc..Open type TBM construction experiences teach that influencing the principal element of open type TBM driving speeds is
Cutter changing frequently, tool change time and slag discharge efficiency etc.；According to statistics, cutter consumption account for hard rock TBM construction costs 1/5 ~
1/4, cutter consumption not only increases construction cost, while more influences TBM construction efficiency and duration.
The content of the invention
The utility model aim is to provide a kind of broken rock cutterhead suitable for open type development machine.
To achieve the above object, the utility model takes following technical proposals：
Broken rock cutterhead described in the utility model suitable for open type development machine, including cutterhead body, the cutterhead body by
Cutterhead, the multiple toolboxs being distributed on the cutterhead are formed；" [" shape that the cutterhead is made of disk panel and gusset plate
Structure；Multiple compound tool bits that each toolbox is fixed on by tool apron and arrangement on the tool apron form；The knife
Seat is by the radial seat being radially fixed on the disk panel and the axial seat group being axially fixed in the gusset plate
Into；The compound tool bit is by sheet handle of a knife, the tungsten carbide being made of the cylinder and hemisphere lining seat and compound of integrative-structure
Formed in the polycrystalline diamond layer of the hemisphere external surface；The cylinder is fixed on the sheet handle of a knife, sheet handle of a knife
It is embedded in the radial seat and axial seat；Multiple high pressure nozzles and thick liquid discharge mouth are provided with the disk panel of cutterhead.
It is described " axially spaced in the gusset plate of [" shape structure cutterhead to be provided with preceding annular partition and rear annular partition, position
Be provided with scum pipe in the slurry room surrounded between the forward and backward annular partition, another mouth of pipe of the scum pipe with
The stock inlet of Pulp pump is connected.
The utility model advantage is the rock breaking mechanism for changing traditional open TBM cutterheads（Extrude rock：Hydraulic system
Thrust exceedes compressive strength of rock, makes it that plastic failure be presented）；Limited by the rock breaking mechanism of traditional open TBM cutterheads, and
Influenced by vibration cutting and wear damage, traditional open TBM cutterheads rotating speed is controlled by its maximum line velocity, and general control exists
Below 3m/s, therefore cutterhead rotating speed cannot be excessive, otherwise side knife can cause vibration damage because rotating speed is fast.And the utility model according to
Shearing strength is much larger than according to compressive strength of rock, therefore the utility model cutter takes full advantage of shear of rock intensity and is less than resistance to compression
The characteristics of intensity, the extruding working angles to rock are completed under the rotation torque effect that hydraulic system provides, are cut in extruding
During, rock is cut to chip in a manner of sliding deformation（Rock slag）, greatly reduce the thrust of hydraulic system.Embody
In the following areas：
1st, the penetrating speed of compound tool bit is substantially increased, reduces compound tool bit injection thrust, simplifies body thrust knot
Structure is arranged, reduces equipment energy consumption.
2nd, since compound tool bit has high intensity, high-wearing feature and good toughness, compound tool bit wears and resists
The impact resistance that shakes greatly improves, and reduces the replacement frequency of cutter, improves TBM utilization rates of equipment and installations, while turn to improve cutterhead
Speed provides condition, improves the driving speed of TBM.
When the 3rd, working under the effect of high pressure nozzle water, head position will not produce dust, greatly improve TBM construction working rings
Border；The slurry system being made up of in TBM tunneling processes scum pipe and Pulp pump is slagged tap, and saves slag-tapping device arrangement space
（Especially light section TBM is tunneled）, working space is increased, condition is provided for open type TBM gibs construction.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the arrangement schematic diagram of disk panel described in the utility model.
Fig. 3 is the structure diagram of compound tool bit described in the utility model.
Fig. 4 is the structure diagram of tungsten carbide lining seat described in the utility model.
Fig. 5 is the structure diagram of hemisphere external surface composite polycrystalline diamond layer described in the utility model.
Embodiment
Elaborate below in conjunction with the accompanying drawings to the embodiment of the present invention, the present embodiment using technical solution of the present invention before
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
As shown in Figs. 1-5, the broken rock cutterhead described in the utility model suitable for open type development machine, including cutterhead body, knife
Disk body is made of cutterhead, the multiple toolboxs being distributed on cutterhead；" [" that cutterhead is made of disk panel 1 and gusset plate 2
Shape structure；Multiple compound tool bits that each toolbox is fixed on by tool apron and arrangement on tool apron form；Tool apron is by radially
The radial seat 3 being fixed on disk panel 1 and the axial seat 4 being axially fixed in gusset plate 2 form；Compound tool bit is by piece
Shape handle of a knife 5, the tungsten carbide being made of cylinder 6 and hemisphere 7 of integrative-structure serve as a contrast seat and are compounded in 7 outer surface of hemisphere
Polycrystalline diamond layer 8 form；Cylinder 6 is fixed on sheet handle of a knife 5, and sheet handle of a knife 5 is embedded in radial seat 3 and axial seat 4
On, the polycrystalline diamond layer 8 of each compound tool bit is set towards cutterhead body direction of rotation；Set on the disk panel 1 of cutterhead
It is equipped with multiple high pressure nozzles 9 and thick liquid discharge mouth 10.
It is described " axially spaced in the gusset plate 2 of [" shape structure cutterhead to be provided with preceding annular partition 11 and rear annular partition
12, axle sleeve 13 is fixed between the annular distance of forward and backward annular partition 11,12, the drive shaft 14 that axle sleeve 13 is used for cutterhead body passes through；
Scum pipe 16, another pipe of scum pipe 16 are provided with the slurry room 15 surrounded between forward and backward annular partition 11,12
Mouth is connected with the stock inlet of Pulp pump 17.
When rock starts to contact the cutting edge of compound tool bit（Polycrystalline diamond layer 8）Initially instantaneous, the stress of contact point makes
Rock interior produces elastic stress and strain, and when cutting edge approaches rock, the elastic stress of rock interior gradually increases, in rock
When a certain position shear stress reaches the yield strength of rock inside stone, rock starts sliding along shearing force equal " first slide surface "
Move, when compound tool bit moves, sliding deformation is more and more big, while pressure and friction of the rock by cutting edge rake, produces
Big extruding and failure by shear and rock is become chip（Rock slag）.
Claims (2)
1. a kind of broken rock cutterhead suitable for open type development machine, including cutterhead body, the cutterhead body by cutterhead, be distributed on institute
The multiple toolboxs stated on cutterhead are formed；It is characterized in that：" [" shape knot that the cutterhead is made of disk panel and gusset plate
Structure；Multiple compound tool bits that each toolbox is fixed on by tool apron and arrangement on the tool apron form；The tool apron
It is made of the radial seat being radially fixed on the disk panel and the axial seat being axially fixed in the gusset plate；
The compound tool bit is served as a contrast seat by the tungsten carbide being made of cylinder and hemisphere of sheet handle of a knife, integrative-structure and is compounded in
The polycrystalline diamond layer of the hemisphere external surface is formed；The cylinder is fixed on the sheet handle of a knife, sheet handle of a knife edge
In the radial seat and axial seat；Multiple high pressure nozzles and thick liquid discharge mouth are provided with the disk panel of cutterhead.
2. it is suitable for the broken rock cutterhead of open type development machine according to claim 1, it is characterised in that：" [" shape structure knife
It is axially spaced in the gusset plate of disk to be provided with preceding annular partition and rear annular partition, between the forward and backward annular partition
Scum pipe is provided with the slurry room surrounded, another mouth of pipe of the scum pipe is connected with the stock inlet of Pulp pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720560306.1U CN207245713U (en) | 2017-05-19 | 2017-05-19 | Suitable for the broken rock cutterhead of open type development machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720560306.1U CN207245713U (en) | 2017-05-19 | 2017-05-19 | Suitable for the broken rock cutterhead of open type development machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207245713U true CN207245713U (en) | 2018-04-17 |
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ID=61875759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720560306.1U Active CN207245713U (en) | 2017-05-19 | 2017-05-19 | Suitable for the broken rock cutterhead of open type development machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN207245713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968681A (en) * | 2017-05-19 | 2017-07-21 | 黄河勘测规划设计有限公司 | Broken rock cutterhead suitable for open type development machine |
| CN109441472A (en) * | 2018-11-30 | 2019-03-08 | 中国人民解放军63926部队 | Dregs front-discharged level digs tunnel equipment and its construction method |
-
2017
- 2017-05-19 CN CN201720560306.1U patent/CN207245713U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968681A (en) * | 2017-05-19 | 2017-07-21 | 黄河勘测规划设计有限公司 | Broken rock cutterhead suitable for open type development machine |
| CN109441472A (en) * | 2018-11-30 | 2019-03-08 | 中国人民解放军63926部队 | Dregs front-discharged level digs tunnel equipment and its construction method |
| CN109441472B (en) * | 2018-11-30 | 2020-02-07 | 中国人民解放军63926部队 | Muck front-discharging type horizontal tunnel expanding and excavating device and construction method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450003 Zhengzhou Jinshui Road, Henan, No. 109 Patentee after: Yellow River Survey Planning and Design Research Institute Co., Ltd. Address before: 450003 Zhengzhou Jinshui Road, Henan, No. 109 Patentee before: Yellow River Engineering Consulting Co., Ltd. |