CN109736821A - A kind of minor diameter normal pressure tool changing cutterhead - Google Patents
A kind of minor diameter normal pressure tool changing cutterhead Download PDFInfo
- Publication number
- CN109736821A CN109736821A CN201910222151.4A CN201910222151A CN109736821A CN 109736821 A CN109736821 A CN 109736821A CN 201910222151 A CN201910222151 A CN 201910222151A CN 109736821 A CN109736821 A CN 109736821A
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- normal pressure
- tool changing
- cutterhead
- minor diameter
- cutter
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- 230000007704 transition Effects 0.000 claims abstract description 29
- 230000005855 radiation Effects 0.000 claims description 5
- 230000005641 tunneling Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 18
- 230000006872 improvement Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of minor diameter normal pressure tool changing cutterheads, cutter including cutterhead body and the front end face for being installed in the cutterhead body, the rear end face of the cutterhead body is equipped with the tool changing chamber to realize the replacement of the cutter, the direction of rear end face far from the cutterhead body is equipped with the central transition cabin being connected to the tool changing chamber, and the central transition cabin is equipped with hatch door.Above-mentioned minor diameter normal pressure tool changing cutterhead is suitable for minor diameter development machine, solves normal pressure cutter replacing method and be difficult to directly apply to the technical problem of minor diameter development machine by the way that central transition cabin is arranged at the rear end face far from cutterhead body.
Description
Technical field
The present invention relates to development machine field of engineering technology, in particular to a kind of minor diameter normal pressure tool changing cutterhead.
Background technique
Slurry balance shield machine is that a kind of subterranean tunnel driving special engineering is mechanical, has and excavates the soil body, conveying dregs, pipe
The functions such as road lining cutting have been widely used in the Tunnel Engineering such as subway, railway, highway, coal mine and water conservancy and hydropower.
Big diameter slurry shield is made that brilliance in wearing the complex geological conditions engineerings such as river tunnel over strait at present
Contribution.Equipment one of of the normal pressure cutterhead as Big diameter slurry shield forefront, advanced normal pressure cutter replacing method
There is in terms of tool changing safety and construction efficiency unrivaled advantage compared with traditional cutter replacing method.In the normal of the prior art
It presses in tool changing cutterhead, when cutter is seriously worn, can be filled in box-type knife beam using special tool changing under high hydraulic condition
It sets and realizes normal pressure tool changing, improve construction speed, ensure construction safety.
However as the application and popularization of normal pressure cutter replacing method, there is an urgent need to dig normal pressure cutter replacing method applied to minor diameter
Into machine.Since structure is complicated for tool changing device, the problems such as tool changing working space of minor diameter cutterhead is limited, lead to normal pressure cutter replacing method
It is difficult to directly apply to minor diameter development machine, therefore how one kind is provided and is suitable for minor diameter development machine, to improve tool changing
The technical issues of minor diameter normal pressure tool changing cutterhead of safety and construction efficiency is those skilled in the art's urgent need to resolve.
Summary of the invention
The object of the present invention is to provide a kind of minor diameter normal pressure tool changing cutterheads, by the rear end face far from cutterhead body
The central transition cabin being connected to tool changing chamber is set, to realize the replacement fixed a cutting tool to minor diameter normal pressure tool changing cutterhead.
To achieve the above object, the present invention provides a kind of minor diameter normal pressure tool changing cutterhead, including cutterhead body and installing
In the cutter of the front end face of the cutterhead body, the rear end face of the cutterhead body is equipped with the replacement to realize the cutter
Tool changing chamber, the direction of the rear end face far from the cutterhead body is equipped with the central transition cabin being connected to the tool changing chamber, described
Central transition cabin is equipped with hatch door.
Preferably, center steering body is fixedly installed on the hatch door, between the center steering body and the cutterhead body
It is detachably connected to realize that fluid is transported by the center steering body to the bellows of the cutterhead body.
It preferably, further include the main driving for being set to the cutterhead body rear, the main driving intermediate region is equipped with described
Central transition cabin.
Preferably, the cutterhead body includes by multiple installings to realize cutter of center radiation profiles around
The tool changing chamber of normal pressure tool changing spoke arm, each normal pressure tool changing spoke arm is connected at center.
Preferably, the cutterhead body further includes the auxiliary beam between the normal pressure tool changing spoke arm, the normal pressure tool changing
The peripheral side of spoke arm and the auxiliary beam is fixed on cutterhead frame.
Preferably, including being arranged in the normal pressure replaceable pilot cutter of the central area of the cutterhead body.
Preferably, the replaceable shell knife of normal pressure including being arranged on the normal pressure tool changing spoke arm.
Preferably, including being arranged in the normal pressure replaceable pilot cutter of the central area of the cutterhead body, the normal pressure can
Replacement shell knife can be replaced the normal pressure replaceable pilot cutter, to realize that the tunneling boring that cutter excavates covers.
Preferably, including being arranged in the replaceable knife of backbreaking of normal pressure in the outside of the normal pressure tool changing spoke arm.
Preferably, including the edge blade that is arranged on the auxiliary beam and it is arranged in cutting on the normal pressure tool changing spoke arm
Knife.
Relative to above-mentioned background technique, minor diameter normal pressure tool changing cutterhead provided by the present invention includes cutterhead body and dress
It is located at the cutter of the front end face of cutterhead body, the rear end face of cutterhead body is equipped with the tool changing chamber to realize the replacement of cutter, changes
Knife chamber is connected to the central transition cabin for being equipped with hatch door, and central transition cabin is located remotely from the direction of the rear end face of cutterhead body, should
Tool changing chamber is arranged by the rear end face in cutterhead body to realize the knife to the front end of cutterhead body in minor diameter normal pressure tool changing cutterhead
The replacement of tool, by setting up the central transition cabin and its cabin that are connected to tool changing chamber in the side of the rear end face far from cutterhead body
Door is to realize replacing into cabin for staff, and the present invention provides a kind of minor diameter normal pressure tool changing suitable for minor diameter development machine
Cutterhead solves normal pressure cutter replacing method and is difficult to directly apply to the technical problem of minor diameter development machine.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the front view of minor diameter normal pressure tool changing cutterhead provided in an embodiment of the present invention；
Fig. 2 is the sectional view of minor diameter normal pressure tool changing cutterhead provided in an embodiment of the present invention.
Wherein:
1- normal pressure tool changing spoke arm, the auxiliary beam of 2-, 3- normal pressure replaceable pilot cutter, the replaceable shell knife of 4- normal pressure, 5- normal pressure can
Replace knife of backbreaking, 6- cutter, 7- edge blade, 8- central transition cabin, 9- center steering body, the main driving of 10-, 11- bellows.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make those skilled in the art more fully understand the present invention program, with reference to the accompanying drawing and it is embodied
The present invention is described in further detail for mode.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is facing for minor diameter normal pressure tool changing cutterhead provided in an embodiment of the present invention
Figure, Fig. 2 are the sectional view of minor diameter normal pressure tool changing cutterhead provided in an embodiment of the present invention.
In the first specific embodiment, minor diameter normal pressure tool changing cutterhead provided by the invention includes cutterhead body,
It is installed in the front end face of cutterhead body to cutter that is broken and excavating, is equipped in the rear end face of cutterhead body to realize knife
The direction of the tool changing chamber of the replacement of tool, the rear end face far from cutterhead body is equipped with central transition cabin 8, central transition cabin 8 and changes
The connection of knife chamber, is equipped with openable and closable hatch door on central transition cabin 8.During small-diameter shield machine excavates in tunnel,
When, which such as there are wearing at the failures, in minor diameter normal pressure tool changing cutterhead to be needed staff to enter the inside of cutterhead to carry out the replacement of cutter,
Staff enters tool changing chamber by opening the hatch door on central transition cabin 8, and via central transition cabin 8, in tool changing chamber
That is the rear end face of cutterhead body realizes the cutter installed on the front end face of cutterhead body by the method for normal pressure tool changing.
It should be noted that normal pressure cutter replacing method is as a kind of cutter replacing method well-known to those skilled in the art, usually
It needs to construct the independent atmospheric area being in communication with the outside to be isolated with the higher-pressure region with cutterhead, staff is in normal pressure
Replacement operation is carried out under environment.Namely central transition cabin 8 in the present invention and tool changing chamber be in a sealed state and with cutterhead master
The high-pressure space of body front end face is isolated, and central transition cabin 8 is connected to and is in communication with the outside with tool changing chamber to realize sealed chamber
Atmospheric pressure environment.In order to realize the normal pressure cutter replacing method to cutter, it usually needs a set of normal pressure tool changing device for cutter, including
Tool apron, pressurizer, lubricating arrangement, provision for disengagement, pressure release and flusher etc..Structure as normal pressure tool changing device namely right
In cutter normal pressure cutter replacing method not as the innovation improvement of the application, the most important improvement of the application is central transition
The replacement arrangement etc. of cabin 8 and cutter on cutterhead body, for the normal pressure tool changing technology of cutter, refer to the prior art,
Here it no longer repeats one by one.
In the present embodiment, center steering body 9, center steering body 9 and knife are fixedly installed on the hatch door in central transition cabin 8
Bellows 11 is removably connected between disc main body.It should be noted that third generation shield machine is to close chest formula shield machine as generation
Table mainly includes slurry type shield machine and soil pressure formula shield machine.Center steering body 9 is the important composition portion of earth pressure balanced shield, EPBS
Point, structure is complicated for itself, positioned at the center of native the storehouse partition and main driving of shield, be connecting fluid inside shield to cutterhead
External unique passage, if the parts damages shield will be unable to work normally.Therefore, in the present embodiment, central transition cabin 8
It is arranged on the rear of cutterhead body namely the direction far from cutterhead body rear end face, central transition cabin 8 is located at main driving 10
Central area, center steering body 9 is fixed on hatch door and cutterhead body is connected by bellows 11.In shield machine working condition
Under, fluid is delivered to cutterhead body via bellows 11 from center revolving body 9, shuts down in shield machine and ties up to cutter
When shield replacement, the connection relationship of bellows 11 and center steering body 9 is released, also i.e. by bellows 11 from center revolving body
It is removed on 9, the other end of bellows 11 is still fixed on cutterhead body, utilizes the telescopic bending fold of bellows 11
Property, on the side wall for bellows 11 being packed up or being placed in central transition cabin 8, the central transition cabin after having dismantled bellows 11
8 accommodation space becomes larger, convenient for the unlatching of hatch door and the entrance of operator.
It should be noted that the bellows 11 of the minor diameter normal pressure tool changing cutterhead in the present embodiment is big compared to traditional
The steel pipe of diameter normal pressure tool changing cutterhead, by the way that center steering body 9 is fixed on hatch door and is used between cutterhead body
The bellows 11 of easily detachable is connected, and solves that tool changing channel is too narrow, operator is difficult to enter in cutterhead namely tool changing chamber
The problems in.
In another specific embodiment, cutterhead body includes that the multiple of radiation profiles are installed with around by center
The normal pressure tool changing spoke arm 1 of cutter, each normal pressure tool changing spoke arm 1 are equipped with the tool changing chamber to realize the replacement of cutter, Mei Gechang
Pressing the tool changing chamber of tool changing spoke arm 1, also by center, radiation profiles and whole tool changing chamber are connected at center around.In the present embodiment,
Each normal pressure tool changing spoke arm 1 is equivalent to a part of cutterhead body, and the tool changing chamber of whole normal pressure tool changing spoke arms 1 connects at center
Lead to and constitutes the tool changing chamber of cutterhead body.
In addition to this, cutterhead body further includes the auxiliary beam 2 between the normal pressure tool changing spoke arm 1, normal pressure tool changing spoke arm 1 it is auxiliary
The peripheral side of beam 2 is fixed on the cutterhead frame of annular.Namely in the normal pressure tool changing spoke arm 1 in center radiation profiles around with circle
The heart is equidistantly uniformly distributed, and an auxiliary beam 2, the left and right sides point of auxiliary beam 2 are equipped between every two adjacent normal pressure tool changing spoke arm 1
Adjacent normal pressure tool changing spoke arm 1 is not connected.
For superior technique effect, the central area of cutterhead body is provided with normal pressure replaceable pilot cutter 3, in normal pressure
The replaceable shell knife 4 of normal pressure is provided on tool changing spoke arm 1, it can be real according to the minor diameter normal pressure tool changing cutterhead of such arrangement
The excavation of rock stratum is now excavated to conventional tunnel.It should be noted that in order to meet the intensity requirement of different tunnel excavation rock stratum, if
The replaceable shell knife 4 of normal pressure set on normal pressure tool changing spoke arm 1 can be replaced normal pressure replaceable pilot cutter 3, at this time in cutterhead master
It is equipped with normal pressure replaceable pilot cutter 3 on the central area of body and normal pressure tool changing spoke arm 1, to realize the tunneling boring of cutter excavation
Covering.
In addition to this, it is equipped with the replaceable knife 5 of backbreaking of normal pressure in the outside of normal pressure tool changing spoke arm 1, specifically, often at one
The outside of tool changing spoke arm 1 is pressed to be equipped with the replaceable knife 5 of backbreaking of normal pressure.Likewise, being equipped with edge blade 7 on auxiliary beam 2, changed in normal pressure
Cutter 6 is sequentially with according to certain track on knife spoke arm 1.
It should be noted that either cutter 6, edge blade 7 and normal pressure it is replaceable backbreak knife 5 or normal pressure it is replaceable
Dual-pilot cutter 3 and the replaceable shell knife 4 of normal pressure belong to conventional knife, structurally and functionally ask as each of above-mentioned cutter is single
Referring to the prior art, no longer repeat one by one here.
The present invention proposes a kind of minor diameter normal pressure tool changing knife as the improvement to traditional major diameter normal pressure tool changing cutterhead
Disk, the improvement of main improvement and knife face arrangement including tool changing channel.
In the improvement in tool changing channel, by the central transition for being provided as tool changing channel in the central area of main driving 10
Cabin 8 and the bellows 11 that easily detachable is arranged between the center steering body 9 being fixed on hatch door and cutterhead body, are convenient for cabin
Door is opened and the entrance of staff, improves the space utilization rate in the central transition cabin 8 of minor diameter normal pressure tool changing cutterhead.
In the improvement of knife face arrangement, in the tunneling process of minor diameter normal pressure tool changing cutterhead, by the replaceable shell of normal pressure
Knife 4 replaces with normal pressure replaceable pilot cutter 3, realizes the tunneling boring covering of cutter.It is realized by the improvement of cutter arrangement
Normal pressure tool changing technology is applied on minor diameter cutterhead, substantially increases minor diameter cutterhead to the geology such as high hydraulic pressure, unstable
Adaptability, meanwhile, by reducing the hardly possible of tool changing present in Conventional compact tunnel excavating process, tool changing using normal pressure tool changing technology
The high problem of low efficiency, tool changing funds.
Minor diameter normal pressure tool changing cutterhead provided by the present invention is described in detail above.It is used herein specifically
Principle and implementation of the present invention are described for a example, the present invention that the above embodiments are only used to help understand
Method and its core concept.It should be pointed out that for those skilled in the art, not departing from original of the invention
, can be with several improvements and modifications are made to the present invention under the premise of reason, these improvement and modification also fall into right of the present invention and want
In the protection scope asked.
Claims (10)
1. a kind of minor diameter normal pressure tool changing cutterhead, which is characterized in that including cutterhead body and be installed in the cutterhead body
The cutter of front end face, the rear end face of the cutterhead body are equipped with the tool changing chamber to realize the replacement of the cutter, far from described
The direction of the rear end face of cutterhead body is equipped with the central transition cabin (8) being connected to the tool changing chamber, the central transition cabin (8)
It is equipped with hatch door.
2. minor diameter normal pressure tool changing cutterhead according to claim 1, which is characterized in that center is fixedly installed on the hatch door
Revolving body (9) is detachably connected to realize fluid by the center between the center steering body (9) and the cutterhead body
Revolving body (9) is transported to the bellows (11) of the cutterhead body.
3. minor diameter normal pressure tool changing cutterhead according to claim 1, which is characterized in that further include being set to the cutterhead body
The main driving (10) at rear, main driving (10) intermediate region are equipped with the central transition cabin (8).
4. minor diameter normal pressure tool changing cutterhead according to any one of claims 1 to 3, which is characterized in that the cutterhead body
Including multiple normal pressure tool changing spoke arms (1) to realize the installing of cutter by center radiation profiles around, it is each it is described often
The tool changing chamber of tool changing spoke arm (1) is pressed to be connected at center.
5. minor diameter normal pressure tool changing cutterhead according to claim 4, which is characterized in that the cutterhead body further includes being set to
The peripheral side of auxiliary beam (2) between the normal pressure tool changing spoke arm (1), the normal pressure tool changing spoke arm (1) and the auxiliary beam (2) is fixed
On cutterhead frame.
6. minor diameter normal pressure tool changing cutterhead according to claim 4, which is characterized in that including being arranged in the cutterhead body
Central area normal pressure replaceable pilot cutter (3).
7. minor diameter normal pressure tool changing cutterhead according to claim 4, which is characterized in that including being arranged in the normal pressure tool changing
The replaceable shell knife (4) of normal pressure on spoke arm (1).
8. minor diameter normal pressure tool changing cutterhead according to claim 7, which is characterized in that including being arranged in the cutterhead body
Central area normal pressure replaceable pilot cutter (3), it is replaceable that the replaceable shell knife (4) of normal pressure can be replaced the normal pressure
Dual-pilot cutter (3), to realize that the tunneling boring that cutter excavates covers.
9. minor diameter normal pressure tool changing cutterhead according to claim 4, which is characterized in that including being arranged in the normal pressure tool changing
The replaceable knife of backbreaking (5) of normal pressure on the outside of spoke arm (1).
10. minor diameter normal pressure tool changing cutterhead according to claim 5, which is characterized in that including being arranged in the auxiliary beam (2)
On edge blade (7) and the cutter (6) that is arranged on the normal pressure tool changing spoke arm (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910222151.4A CN109736821B (en) | 2019-03-22 | 2019-03-22 | Small-diameter normal-pressure tool changing cutter disc |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910222151.4A CN109736821B (en) | 2019-03-22 | 2019-03-22 | Small-diameter normal-pressure tool changing cutter disc |
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| Publication Number | Publication Date |
|---|---|
| CN109736821A true CN109736821A (en) | 2019-05-10 |
| CN109736821B CN109736821B (en) | 2024-02-02 |
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| CN201910222151.4A Active CN109736821B (en) | 2019-03-22 | 2019-03-22 | Small-diameter normal-pressure tool changing cutter disc |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879023A (en) * | 2021-02-18 | 2021-06-01 | 清华大学 | Cutter head of tunnel boring machine and tunnel boring machine with cutter head |
| CN113464151A (en) * | 2021-07-14 | 2021-10-01 | 中铁工程装备集团有限公司 | Novel normal pressure cutter head and shield machine |
| CN113719298A (en) * | 2021-07-30 | 2021-11-30 | 太原理工大学 | Small-diameter cutter head and tunnel boring machine |
| CN118361251A (en) * | 2024-06-17 | 2024-07-19 | 中国铁建重工集团股份有限公司 | Cutter head of small-diameter shield tunneling machine |
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| CN118361251A (en) * | 2024-06-17 | 2024-07-19 | 中国铁建重工集团股份有限公司 | Cutter head of small-diameter shield tunneling machine |
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