CN112065420B - Fixed type milling cutter head tunneling machine - Google Patents
Fixed type milling cutter head tunneling machine Download PDFInfo
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- CN112065420B CN112065420B CN202011078590.1A CN202011078590A CN112065420B CN 112065420 B CN112065420 B CN 112065420B CN 202011078590 A CN202011078590 A CN 202011078590A CN 112065420 B CN112065420 B CN 112065420B
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- Prior art keywords
- rotary
- cutter head
- milling cutter
- rotary milling
- soil
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- 238000003801 milling Methods 0.000 title claims abstract description 57
- 230000005641 tunneling Effects 0.000 title claims abstract description 24
- 239000002689 soil Substances 0.000 claims abstract description 45
- 238000009966 trimming Methods 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 239000011435 rock Substances 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims abstract 2
- 230000007246 mechanism Effects 0.000 claims description 19
- 239000002893 slag Substances 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
-
- 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/0874—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with rotary drilling heads having variable diameter
-
- 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
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
The invention discloses a fixed rotary milling cutter head tunneling machine, which comprises a rotary milling cutter head arranged at the front end of a shield body and a packing auger conveyor communicated with the rotary milling cutter head, wherein the rotary milling cutter head is provided with a plurality of rotary cutter heads, and the fixed rotary milling cutter head tunneling machine also comprises: the trimming blade is arranged on the protective shed at the front end of the shield body, extends forwards and is used for removing surrounding rocks of the section which is not milled by the rotary cutter head; the residue soil conveying device is arranged at the lower part of the rotary milling cutter head, and the rear end of the residue soil conveying device is communicated with the auger conveyor and is used for conveying dug residue soil; the rotary cutter head is provided with a tunneling blade which is arranged in a telescopic mode, and the tunneling blade extends out or retracts along with the rotation of the rotary cutter head. According to the invention, the residual soil on the section is dug out through the rotary cutter disc arranged on the rotary milling cutter disc, and the shape of the section is trimmed through the trimming blade arranged on the protective shed, so that the section of the tunnel meets the engineering requirements, the engineering efficiency is improved, and the labor intensity of workers and the labor cost of the engineering are reduced.
Description
Technical Field
The invention relates to the technical field of development machines, in particular to a fixed development machine with a rotary milling cutter head.
Background
The heading machine is a machine for cutting a roadway on a flat ground, mainly comprises a travelling mechanism, a working mechanism, a loading and transporting mechanism and a transshipping mechanism, wherein a cutting head in the working mechanism continuously crushes rocks and transports the crushed rocks along with the forward propulsion of the travelling mechanism, and the heading machine has the advantages of safety, high efficiency, good roadway forming quality and the like. At present, China becomes the biggest development base and application market of the development machine in the world, and with the rapid growth of construction works such as urban rail transit, railways, roads, water conservancy, municipal engineering and the like in China, the development of the development machine in China is also rapid. The utility model provides a chinese utility model patent CN203271753U provides a planet blade disc combination formula rectangle entry driving machine, including casing, main drive, planet drive, big blade disc, four little blade discs of planet and screw conveyer, wherein, the cross-section of casing is the rectangle, and its inside partition bulkhead that is provided with, and the front portion of partition bulkhead is the clay storehouse, main drive's planet drive fixes on the partition bulkhead, and the center in clay storehouse is located to big blade disc, and its rear end is connected with main drive, and the front of big blade disc is provided with a plurality of big blade disc cutting knives, and four little blade discs of planet set up in clay storehouse, and it is located the rear of big blade disc, and is in respectively on four corners that big blade disc can not cut, and the rear end of little blade disc of planet is connected with planet drive and its front is provided with a plurality of knife disc cutting knives, and inside screw conveyer sets up and the casing. The use is novel, the structure is simple, the adaptability is strong, the working efficiency is improved to a certain extent, and the construction of a rectangular tunnel can be adapted.
Most of the current situations of rail transit external power engineering adopt a cable tunnel form, particularly an external power supply of a 10kV system, and the design clearance is generally 2m wide and 2.3m high; the thickness of the primary support and the secondary support is 0.25m, namely the size of the section of the tunnel formed is 2m multiplied by 2.3m (width multiplied by height), namely the lower part is rectangular, and the upper end is arched. The excavated end face is 2.8m multiplied by 2.7m, and the area is generally not more than 10 square meters; the traditional method is that a simple tool is used manually, the operation is performed manually, the labor intensity of workers is high, the efficiency is low, and the danger is high. The shield machine is suitable for large-section tunnels and cannot meet the construction requirements of special-shaped small-section projects, so that most projects still adopt a manual digging mode at present.
In view of this, it is urgently needed to improve the structure of the existing heading machine so as to adapt to the special-shaped small-section tunnel engineering such as the cable tunnel of the power engineering outside the rail transit.
Disclosure of Invention
The invention aims to solve the technical problems that the existing tunneling machine cannot meet the use requirement of special-shaped small-section tunnel engineering, and the manual digging worker has high labor intensity, low efficiency and high risk.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a fixed change milling cutter head entry driving machine, including set up at the front end of the shield body change the milling cutter head and with change the auger conveyor of milling cutter head intercommunication, it is provided with a plurality of rotatory blade discs on the milling cutter head to change, still includes:
The trimming blade is arranged on a protective shed at the front end of the shield body, extends forwards and is used for removing surrounding rocks of the section which is not milled by the rotary cutter head;
the residue soil conveying device is arranged at the lower part of the rotary milling cutter head, and the rear end of the residue soil conveying device is communicated with the auger conveyor and is used for conveying excavated residue soil;
the rotary cutter head is provided with a tunneling blade which is arranged in a telescopic mode, and the tunneling blade extends out or retracts along with the rotation of the rotary cutter head.
In this scheme, dregs conveyor includes:
the soil digging bucket is arranged at the lower part of the rotary milling cutter head, the front end of the soil digging bucket extends outwards, and the rear end of the soil digging bucket is provided with a residue soil discharging port which is communicated with the auger conveyor;
the spiral cutter head is arranged at the front end of the residue soil discharging port, and a screw rod of the spiral cutter head is arranged in parallel with the residue soil beating port.
In the scheme, the spiral cutterheads are two groups with opposite spiral directions.
In the scheme, a blocking part is arranged on the rotary cutter disc along the radial direction, and one end of the tunneling blade is hinged with the rotary cutter disc and arranged on one side of the blocking part.
In this scheme, rotatory blade disc includes:
the upper rotary cutter disc is arranged at the upper end of the rotary milling cutter disc;
And the left rotary cutter disc and the right rotary cutter disc are respectively arranged at the left end and the right end of the rotary milling cutter disc.
In the scheme, the rotary milling cutter disc is further provided with a soil separator which is a steel wedge-shaped device and is arranged between the left rotary cutter disc and the right rotary cutter disc.
In this scheme, the rear portion of the shield body sets up running gear, include:
the crawler belt traveling mechanism comprises a crawler belt motor and a traveling crawler belt and is used for driving the tunneling machine to advance;
and the direction control mechanism is used for controlling the direction of the heading machine.
In this scheme, the slope of auger conveyor sets up in the shield is internal, the height that highly is less than its rear end of auger conveyor's front end.
In this scheme, the rear end of auger conveyer stretches out downwards and is provided with the slag notch.
In the scheme, a driving motor is arranged on the rear end face of the rotary milling cutter disc, and the driving motor is connected with the rotary cutter disc through a speed reducer respectively to drive the rotary cutter disc to rotate.
Compared with the prior art, the fixed rotary milling cutter tunneling machine provided by the invention comprises the upper cutter disc, the left cutter disc and the right cutter disc, wherein the residual soil on the section is excavated through the rotary cutter disc arranged on the rotary milling cutter disc, and the shape of the section is trimmed through the trimming blade arranged on the protective shed, so that the section of the tunnel meets the construction requirements of small-section tunnel engineering such as municipal engineering, power supply engineering and the like, the construction efficiency of the tunnel is improved, the labor intensity of workers and the labor cost of the engineering are reduced, and the casualty risk caused by accidents such as collapse is avoided.
Drawings
FIG. 1 is a cross-sectional view of a fixed rotary milling cutter head heading machine of the present invention;
FIG. 2 is a front view of a rotary milling cutter head according to the present invention;
FIG. 3 is a side view of the rotary cutter head of the present invention;
FIG. 4 is a schematic view of the telescoping of the ripping blade of the present invention;
fig. 5 is a front view of the muck-conveying device according to the present invention.
Detailed Description
The invention provides a fixed rotary milling cutter head tunneling machine, which is characterized in that a rotary cutter head arranged on a rotary milling cutter head digs out dregs on a section, and a trimming blade arranged on a protective shed is used for trimming the shape of the section, so that the section of a tunnel meets engineering requirements, the engineering efficiency is improved, and the labor intensity of workers and the labor cost of the engineering are reduced. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1, fig. 2 and fig. 5, the fixed rotary milling cutter heading machine provided by the invention comprises a shield body, an auger conveyor 2, a trimming blade 3, a muck conveying device 4 and a traveling mechanism 5. The front end of the shield body is provided with a rotary milling cutter head 6, and the rotary milling cutter head 6 is provided with a rotary cutter head.
The front end of the shield body is also provided with a protective shed, the trimming blade 4 is arranged on the protective shed, the cutting edge of the trimming blade 5 extends forwards, and section surrounding rocks which are not milled by the rotary cutter head are removed along with the advance of the shield body.
As shown in fig. 5, the muck conveying device 4 is arranged at the lower part of the rotary milling cutter head 6 and comprises a muck bucket 41 and a spiral cutter head 42, the muck bucket 41 is arranged at the lower part of the rotary milling cutter head 6, and the front end of the muck bucket 41 is arranged to extend forwards for digging up muck accumulated in front of the muck bucket 41; the rear end of the soil digging bucket 41 is provided with a residue soil discharging port 43 which is communicated with the auger conveyor 2, and residue soil can enter the auger conveyor 2 through the residue soil discharging port 43 and is sent out by the auger conveyor 2.
The spiral cutterheads 42 are two groups of spiral cutterheads driven by a worm wheel-worm reducer driven by a motor, the screw rods of the spiral cutterheads are arranged in parallel with the slag discharging hole 43, and the slag soil accumulated on the soil digging bucket 41 can be discharged from the slag discharging hole 43 through the spiral cutterheads 42. The spiral directions of the two groups of spiral cutter discs 42 are opposite.
As shown in fig. 3 and 4, the rotary cutter disc on the rotary milling cutter disc 6 includes an upper rotary cutter disc 61, a left rotary cutter disc 62 and a right rotary cutter disc 63, the upper rotary cutter disc 61, the left rotary cutter disc 62 and the right rotary cutter disc 63 are respectively arranged at the upper end, the left end and the right end of the rotary milling cutter disc 6, blocking parts 64 are arranged on the upper rotary cutter disc 61, the left rotary cutter disc 62 and the right rotary cutter disc 63 along the radial direction thereof, a tunneling blade 65 is arranged at one side of the blocking parts 64, one end of the tunneling blade 65 is hinged with the rotary cutter disc, and the other end is freely arranged and can extend out or retract along with the rotation of the rotary blade. The rear end face of the rotary milling cutter head 6 is provided with a driving motor 66, and the driving motor 66 is respectively connected with the rotary cutter head through a speed reducer 67 to drive the rotary cutter head to rotate.
The rotary milling cutter head 6 is also provided with a soil separator 68, the soil separator 68 is a steel wedge-shaped device, is arranged between the left rotary cutter head 62 and the right rotary cutter head 63, and can remove surrounding rocks on the sections which are not milled by the left rotary cutter head 62 and the right rotary cutter head 63 along with the advance of the shield body.
The traveling mechanism 5 is arranged at the rear part of the shield body and comprises a crawler traveling mechanism 51 and a direction control mechanism 52, and the crawler traveling mechanism 51 comprises a crawler motor and a traveling crawler and is used for driving the tunneling machine to advance; and a direction control mechanism 52 for controlling the direction of the heading machine.
The auger conveyor 2 is obliquely arranged in the shield body, the front end of the auger conveyor 2 is lower than the rear end of the auger conveyor, and the rear end of the auger conveyor 2 extends downwards to form a slag outlet 21, so that the slag soil is conveniently discharged.
The working process of the invention is as follows:
when the upper rotary cutter disc 61, the left rotary cutter disc 62 and the right rotary cutter disc 63 on the rotary milling cutter disc 6 are driven by the driving motor 66 to rotate in the forward direction, the tunneling cutter blade 65 extends out under the action of centrifugal force to perform rotary milling on the section of the tunnel; the dressing blade 3 and the soil separator 68 are driven by the traveling mechanism 5 to advance the shield body, and the shape of the cross section of the tunnel is dressed. The slag soil which is rotationally milled by the upper rotary cutter head 61, the left rotary cutter head 62, the right rotary cutter head 63, the finishing blade 3 and the soil separator 68 is accumulated at the bottom end of the section of the tunnel, the digging bucket 41 digs the accumulated slag soil along with the advancing of the shield body, and the dug slag soil is sent into the auger conveyor 2 through the spiral cutter head 42 and the slag soil discharging port 43 and is sent out by the auger conveyor 2.
The fixed rotary milling cutter heading machine comprises an upper cutter disc, a left cutter disc and a right cutter disc, wherein the rotary cutter disc arranged on the rotary milling cutter disc digs dregs on the section, and the shape of the section is trimmed by a trimming blade arranged on a protective shed, so that the section of a tunnel meets the construction requirements of small-section tunnel engineering such as municipal engineering, power supply engineering and the like, the construction efficiency of the tunnel is improved, the labor intensity of workers and the labor cost of the engineering are reduced, and the casualty risk caused by accidents such as collapse is avoided.
In the scheme, the blocking part is arranged on the rotary cutter disc along the radial direction, one end of the tunneling blade is hinged with the rotary cutter disc and arranged on one side of the blocking part, and the tunneling blade is telescopically arranged on the rotary cutter disc through the blocking part, so that the tunneling blade is prevented from idle running and abrasion when the shield body advances under the pushing of the advancing mechanism.
In this scheme, dregs conveyor is including digging soil fill and spiral blade disc, and the front end that digs soil fill stretches out the setting outward, conveniently digs soil fill and excavates accumulational dregs, and the spiral blade disc setting is in the rear end of digging soil fill, can carry out rotatory stirring and further crushing to the dregs of digging soil fill front end, prevents that the dregs from piling up, has improved the mobility of dregs, has effectively solved the long-pending sediment problem of tunnel boring machine, has improved spiral conveyor's the efficiency of slagging tap greatly.
The present invention is not limited to the above preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A fixed rotary milling cutter heading machine comprises a rotary milling cutter arranged at the front end of a shield body and a packing auger conveyor communicated with the rotary milling cutter, and is characterized in that a plurality of rotary cutters are arranged on the rotary milling cutter,
further comprising:
the trimming blade is arranged on a protective shed at the front end of the shield body, extends forwards and is used for removing surrounding rocks of the section which is not milled by the rotary cutter head;
the residue soil conveying device is arranged at the lower part of the rotary milling cutter head, and the rear end of the residue soil conveying device is communicated with the auger conveyor and is used for conveying excavated residue soil;
the rotary cutter head includes:
the upper rotary cutter disc is arranged at the upper end of the rotary milling cutter disc;
the left rotary cutter head and the right rotary cutter head are respectively arranged at the left end and the right end of the rotary milling cutter head;
the rotary cutter head is provided with a tunneling blade which is arranged in a telescopic mode, and the tunneling blade extends out or retracts along with the rotation of the rotary cutter head.
2. The fixed rotary milling cutter head tunnel boring machine according to claim 1, wherein the muck delivery device comprises:
the soil digging bucket is arranged at the lower part of the rotary milling cutter head, the front end of the soil digging bucket extends outwards, and the rear end of the soil digging bucket is provided with a residue soil discharging port which is communicated with the auger conveyor;
the spiral cutter head is arranged at the front end of the residue discharge soil opening, and a screw rod of the spiral cutter head is arranged in parallel with the residue discharge soil opening.
3. The fixed rotary milling cutter head boring machine according to claim 2, wherein the helical cutters are in two sets with opposite helical directions.
4. The fixed rotary milling cutter heading machine according to claim 1, wherein a blocking portion is radially provided on the rotary cutter head, and one end of the heading blade is hinged to the rotary cutter head and is disposed on one side of the blocking portion.
5. The fixed rotary milling cutter heading machine according to claim 1, wherein a soil separator is further provided on the rotary milling cutter, and is a steel wedge-shaped device, and is provided between the left rotary cutter and the right rotary cutter.
6. The fixed rotary milling cutter head tunneling machine according to claim 1, wherein a traveling mechanism is arranged at the rear part of the shield body, and comprises:
The crawler belt traveling mechanism comprises a crawler belt motor and a traveling crawler belt and is used for driving the tunneling machine to advance;
and the direction control mechanism is used for controlling the direction of the heading machine.
7. The fixed rotary milling cutter heading machine according to claim 1, wherein the auger conveyor is obliquely arranged in the shield body, and the front end of the auger conveyor is lower than the rear end thereof.
8. The fixed rotary milling cutter head heading machine according to claim 1, wherein a slag outlet is provided at the rear end of the auger conveyor in a downward projection manner.
9. The fixed rotary milling cutter heading machine according to claim 1, wherein a driving motor is arranged on a rear end face of the rotary milling cutter, and the driving motor is respectively connected with the rotary cutter through a speed reducer to drive the rotary cutter to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011078590.1A CN112065420B (en) | 2020-10-10 | 2020-10-10 | Fixed type milling cutter head tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011078590.1A CN112065420B (en) | 2020-10-10 | 2020-10-10 | Fixed type milling cutter head tunneling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112065420A CN112065420A (en) | 2020-12-11 |
| CN112065420B true CN112065420B (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011078590.1A Active CN112065420B (en) | 2020-10-10 | 2020-10-10 | Fixed type milling cutter head tunneling machine |
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| Country | Link |
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| CN (1) | CN112065420B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410027A (en) * | 2011-10-19 | 2012-04-11 | 中铁隧道装备制造有限公司 | Novel dual-mode TBM (tunnel boring machine) and control method thereof |
| CN102926748A (en) * | 2012-11-19 | 2013-02-13 | 北方重工集团有限公司 | Double-cutterhead double-transverse-cylinder full-face tunneller |
| CN103742135A (en) * | 2014-01-15 | 2014-04-23 | 上海安运输送设备有限公司 | Rapid rectangular full-face tunnel boring machine for mining |
| CN105937398A (en) * | 2016-06-20 | 2016-09-14 | 中铁工程装备集团有限公司 | Same-plane multi-cutter-disc rectangular tunneling machine used in water-rich pebble stratum |
-
2020
- 2020-10-10 CN CN202011078590.1A patent/CN112065420B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410027A (en) * | 2011-10-19 | 2012-04-11 | 中铁隧道装备制造有限公司 | Novel dual-mode TBM (tunnel boring machine) and control method thereof |
| CN102926748A (en) * | 2012-11-19 | 2013-02-13 | 北方重工集团有限公司 | Double-cutterhead double-transverse-cylinder full-face tunneller |
| CN103742135A (en) * | 2014-01-15 | 2014-04-23 | 上海安运输送设备有限公司 | Rapid rectangular full-face tunnel boring machine for mining |
| CN105937398A (en) * | 2016-06-20 | 2016-09-14 | 中铁工程装备集团有限公司 | Same-plane multi-cutter-disc rectangular tunneling machine used in water-rich pebble stratum |
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| Publication number | Publication date |
|---|---|
| CN112065420A (en) | 2020-12-11 |
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