CN113446018B - Foldable gap-variable cutterhead of slurry shield machine and slurry shield machine - Google Patents
Foldable gap-variable cutterhead of slurry shield machine and slurry shield machine Download PDFInfo
- Publication number
- CN113446018B CN113446018B CN202110869664.1A CN202110869664A CN113446018B CN 113446018 B CN113446018 B CN 113446018B CN 202110869664 A CN202110869664 A CN 202110869664A CN 113446018 B CN113446018 B CN 113446018B
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- China
- Prior art keywords
- cutterhead
- shield machine
- slurry shield
- fan
- variable
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- 239000002002 slurry Substances 0.000 title claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000005641 tunneling Effects 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 6
- 238000009412 basement excavation Methods 0.000 description 9
- 239000011435 rock Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
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- 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
- E21D9/087—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 a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
-
- 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
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a foldable gap-variable cutterhead of a slurry shield machine and the slurry shield machine, wherein the cutterhead comprises a cutterhead body (1) and a separation sheet (12) arranged at the opening edge of the cutterhead body (1), and the separation sheet (12) stretches out or stretches into the cutterhead body (1) through rotation. Compared with the prior art, the opening ratio of the whole shield tunneling machine cutterhead can be quickly, simply, conveniently and accurately changed through the arrangement of the isolating sheets and the central control system, the number of times of replacing the whole shield tunneling machine cutterhead is effectively reduced, and the construction safety and efficiency are improved.
Description
Technical Field
The invention belongs to the field of geological engineering, geotechnical engineering, tunnels and underground construction engineering and tunnel excavation, and particularly relates to a foldable gap-variable cutterhead of a slurry shield machine and the slurry shield machine.
Background
The shield tunneling machine is a tunnel tunneling machine using a shield tunneling method. The construction method of the shield is that the tunneling machine constructs (lays) a 'shield' (which refers to a supporting segment) of a tunnel while tunneling. In the construction process, large-area removal is not needed on the ground, traffic is not blocked, construction is noiseless, the ground is not settled, and normal life of residents is not influenced, so that the shield tunneling machine is widely used for tunnel engineering of subways, railways, highways, municipal administration, hydropower and the like.
The cutterhead is a core component of the shield tunneling machine, and the cutterhead opening ratio (opening ratio) generally refers to the ratio of the area of an opening area of the cutterhead to the total area of the cutterhead. The cutter head opening directly influences the mobility of dregs, the cutter head cutter heats, wears out, cutting efficiency and reliability, in tunnel excavation process, can meet the country rock of different conditions, often need frequently change the cutter head to adapt to corresponding country rock condition and continue the tunneling, but change the cutter head at every turn can consume a large amount of manpower and materials and engineering time, and the area presses and changes the cutter and have certain danger to the operating personnel. Therefore, a novel shield tunneling machine cutterhead needs to be designed and developed.
Disclosure of Invention
The invention aims to provide a foldable gap-variable cutterhead of a slurry shield machine and the slurry shield machine. The method realizes the quick, simple and convenient adjustment of the opening ratio of the cutterhead, and can adopt one shield tunneling machine cutterhead to realize the excavation of various surrounding rock conditions. The number of times of replacing the whole cutter head of the shield machine is effectively reduced, and the construction safety and efficiency are improved.
The aim of the invention is achieved by the following technical scheme:
a foldable clearance-variable cutterhead of a slurry shield machine comprises a cutterhead body and a separation sheet arranged at the opening edge of the cutterhead body, wherein the separation sheet stretches out or retracts into the cutterhead body through rotation.
Preferably, the cutter head body is provided with a plurality of sectors distributed along the circumferential direction, one side of each sector is provided with an opening edge, and the plurality of separating sheets are respectively rotatably extended out of or retracted into the sector from the opening edge of each sector.
Preferably, the cutter head body is provided with four fan-shaped parts distributed along the circumferential direction, one side of each fan-shaped part is provided with an opening edge, and the four separating sheets are respectively rotatably extended out of or retracted into the fan-shaped parts from the opening edge of each fan-shaped part.
Preferably, the four sectors are distributed in a cross shape.
Preferably, the vertexes of the fan-shaped parts intersect at the center of the cutter head body, one side of the opening edge of each fan-shaped part is provided with a cavity for accommodating the isolating sheets, the isolating sheets are fan-shaped, and the vertexes intersect at the center of the cutter head body and can rotate around the center of the cutter head body.
Preferably, the thickness of the spacer is smaller than the thickness of the sector.
Preferably, the cutterhead further comprises a central control system having an electrically connected controller for controlling rotation of the spacer and a communication line for transmitting data including a determined cutterhead opening ratio to the controller.
Preferably, the controller comprises a driving motor and a driving gear set which are in transmission connection; the driving gear set comprises a driven gear connected with the isolating sheet (12) and a driving gear which is arranged on the output shaft of the driving motor and meshed with the driven gear.
The second aspect of the invention provides a slurry shield machine, which comprises the cutterhead.
Preferably, the cutterhead is arranged at the front part of the shield tunneling machine.
In the process of tunnel excavation, the foldable gap-variable cutterhead of the slurry shield machine provided by the invention determines the required opening ratio of the shield according to the known condition of surrounding rocks of the tunnel (for example, an information acquisition system can be adopted to measure the condition of the surrounding rocks to be excavated through pressure sensing equipment (such as a pressure sensor), the measured result is transmitted to a processing and analyzing unit for analysis, the processing and analyzing unit calculates the required opening ratio), then the required opening ratio is transmitted to a controller through a communication line, and the controller drives a spacer to rotate to change the opening ratio, so that tunnel excavation is carried out.
Compared with the prior art, the invention has the following beneficial effects:
the foldable clearance-variable cutterhead of the slurry shield machine changes the opening ratio of the cutterhead through the foldable separation sheet, is suitable for continuously changing surrounding rock conditions, and has a large opening ratio adjusting range. The foldable gap-variable cutterhead of the slurry shield machine has the characteristics of simplicity, low investment, good effect, stable operation and the like in tunnel excavation. Has wide application prospect in tunnel excavation engineering.
Drawings
FIG. 1 is a schematic diagram of a foldable clearance-variable cutterhead of a slurry shield machine of the present invention;
in the figure: 1-a cutter head body; 11-scallops; 12-spacers; 111-open edges.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Example 1
A foldable gap-variable cutterhead of a slurry shield machine, as shown in fig. 1, comprises a cutterhead body 1 and a separation piece 12 arranged at the opening edge of the cutterhead body 1, wherein the separation piece 12 stretches out or retracts into the cutterhead body 1 through rotation.
More specifically:
the cutterhead body 1 has a plurality of sectors 11 distributed in the circumferential direction, one side of each sector 11 being an open edge 111, and a plurality of spacers 12 being provided, each of which rotatably extends from or retracts into each sector 11 from the open edge 111 of each sector 11. Preferably, the vertexes of the plurality of fan-shaped parts 11 intersect at the center of the cutterhead body 1, one side of the opening edge 111 of each fan-shaped part 11 is provided with a cavity for accommodating the isolating piece 12, the plurality of isolating pieces 12 are fan-shaped, and the vertexes intersect at the center of the cutterhead body 1 and can rotate around the center of the cutterhead body 1. The thickness of the spacer 12 is further smaller than the thickness of the sectors 11 so as to be foldable into the sectors 11. As shown in fig. 1, in this embodiment, the cutter head body 1 preferably has four sectors 11 distributed in the circumferential direction, one side of each sector 11 is an opening edge 111, and four spacers 12 are provided to rotatably extend from or retract into each sector 11 from the opening edge 111 of each sector 11. It is further preferable that the four sectors 11 are uniformly distributed in a cross shape.
The cutterhead also includes a central control system having an electrically connected controller for controlling the rotation of the spacer 12 and a communication line for transmitting data including a determined cutterhead opening ratio to the controller. The controller can adopt a driving motor and a driving gear set which are in transmission connection; the drive gear set includes a driven gear connected to the spacer 12 and a driving gear provided on the output shaft of the drive motor and engaged with the driven gear. The driven gear can be arranged at the vertex junction of the plurality of the isolating sheets 12 and is jointly connected with the plurality of the isolating sheets to realize the joint rotation of the plurality of the isolating sheets; or the driving gear is arranged at the junction of the vertexes of the plurality of the isolating sheets 12, each isolating sheet 12 is respectively provided with a driven gear, and the plurality of driven gears are simultaneously meshed with the driving gear; or the controller may employ other mechanisms capable of driving the rotation of the spacer 12.
In the tunnel excavation process, the foldable gap-variable cutterhead of the slurry shield machine of the embodiment determines the required opening ratio of the shield through the known surrounding rock condition of the tunnel (for example, an information acquisition system can be adopted to measure the condition of surrounding rock to be excavated through pressure sensing equipment (such as a pressure sensor), the measured result is transmitted to a processing and analyzing unit for analysis, the processing and analyzing unit calculates the required opening ratio), then the required opening ratio is transmitted to a controller through a communication line, the controller drives a separation sheet 12 to rotate, the opening ratio is changed, and then tunnel excavation is carried out. The cutter head opening ratio can be controlled according to different surrounding rock conditions of the tunnel, and the method can adapt to more complex tunnel environments.
Example 2
A slurry shield machine includes the cutterhead of embodiment 1. The cutter head is arranged at the front part of the shield tunneling machine.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (6)
1. The foldable clearance-variable cutterhead of the slurry shield machine is characterized by comprising a cutterhead body (1), a separation sheet (12) arranged at the opening edge of the cutterhead body (1) and a central control system;
the cutter head body (1) is provided with a plurality of fan-shaped parts (11) which are distributed at intervals along the circumferential direction, one side of each fan-shaped part (11) is provided with an opening edge (111), and a plurality of isolating sheets (12) are respectively rotatably extended out of or retracted into the fan-shaped parts (11) from the opening edges (111) of each fan-shaped part (11);
the apexes of the fan-shaped parts (11) are intersected at the center of the cutter head body (1), a cavity for accommodating the isolating sheets (12) is formed in one side of the opening edge (111) of each fan-shaped part (11), the isolating sheets (12) are fan-shaped, and the apexes are intersected at the center of the cutter head body (1) and can rotate around the center of the cutter head body (1);
the central control system is provided with a controller and a communication line which are electrically connected, wherein the controller is used for controlling the rotation of the isolating sheet (12), and the communication line is used for transmitting data comprising the determined cutter head opening rate into the controller;
the controller comprises a driving motor and a driving gear set which are in transmission connection; the driving gear set comprises a driven gear connected with the isolating sheet (12) and a driving gear which is arranged on the output shaft of the driving motor and meshed with the driven gear.
2. The foldable clearance-variable cutterhead of a slurry shield machine according to claim 1, wherein the cutterhead body (1) has four sectors (11) distributed along the circumferential direction, one side of each sector (11) is an open edge (111), and the spacer (12) is provided with four sectors (11) rotatably extending from or retracting into the open edge (111) of each sector (11).
3. A foldable clearance-variable cutterhead for a slurry shield machine according to claim 2, characterized in that four sectors (11) are distributed in a cross-shape.
4. The foldable clearance-variable cutterhead of a slurry shield machine according to claim 1, wherein the thickness of the spacer (12) is smaller than the thickness of the sector (11).
5. A slurry shield machine comprising the cutterhead of any one of claims 1-4.
6. The slurry shield machine according to claim 5, wherein the cutterhead is disposed at a front portion of the shield machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110869664.1A CN113446018B (en) | 2021-07-30 | 2021-07-30 | Foldable gap-variable cutterhead of slurry shield machine and slurry shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110869664.1A CN113446018B (en) | 2021-07-30 | 2021-07-30 | Foldable gap-variable cutterhead of slurry shield machine and slurry shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113446018A CN113446018A (en) | 2021-09-28 |
| CN113446018B true CN113446018B (en) | 2023-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110869664.1A Active CN113446018B (en) | 2021-07-30 | 2021-07-30 | Foldable gap-variable cutterhead of slurry shield machine and slurry shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113446018B (en) |
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|---|---|---|---|---|
| CN203665585U (en) * | 2013-12-30 | 2014-06-25 | 楚丽芳 | Tool structure of medicine cutter |
| CN105240026A (en) * | 2015-10-20 | 2016-01-13 | 辽宁三三工业有限公司 | Method for active changing of opening ratio of cutter head and cutter head with actively-changeable opening ratio |
| CN205132201U (en) * | 2015-11-10 | 2016-04-06 | 北京大学深圳医院 | Convenient separation collection device of sharp ware |
| CN208734336U (en) * | 2018-05-10 | 2019-04-12 | 天津城建大学 | A kind of simple shield machine model for testing different pattern cutterheads |
| CN109667594A (en) * | 2018-12-25 | 2019-04-23 | 上海城建市政工程（集团）有限公司 | A kind of mechanical device and its application method of changeable cutterhead aperture opening ratio |
| CN110725692A (en) * | 2019-11-22 | 2020-01-24 | 中交隧道工程局有限公司 | Telescopic center cutting knife device of shield tunneling machine |
| CN110821506A (en) * | 2019-12-06 | 2020-02-21 | 中铁隧道局集团有限公司 | Shield constructs machine with telescopic ordinary pressure trades sword storehouse |
| JP2020094442A (en) * | 2018-12-14 | 2020-06-18 | 東急建設株式会社 | Steel shell of drilling machine, and drilling machine |
| CN210931876U (en) * | 2019-08-14 | 2020-07-07 | 郑州儿童医院 | Novel sharp instrument box |
| CN211950498U (en) * | 2020-02-27 | 2020-11-17 | 北京交通大学 | Model test cutter head device capable of changing opening rate and cutter type |
-
2021
- 2021-07-30 CN CN202110869664.1A patent/CN113446018B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203665585U (en) * | 2013-12-30 | 2014-06-25 | 楚丽芳 | Tool structure of medicine cutter |
| CN105240026A (en) * | 2015-10-20 | 2016-01-13 | 辽宁三三工业有限公司 | Method for active changing of opening ratio of cutter head and cutter head with actively-changeable opening ratio |
| CN205132201U (en) * | 2015-11-10 | 2016-04-06 | 北京大学深圳医院 | Convenient separation collection device of sharp ware |
| CN208734336U (en) * | 2018-05-10 | 2019-04-12 | 天津城建大学 | A kind of simple shield machine model for testing different pattern cutterheads |
| JP2020094442A (en) * | 2018-12-14 | 2020-06-18 | 東急建設株式会社 | Steel shell of drilling machine, and drilling machine |
| CN109667594A (en) * | 2018-12-25 | 2019-04-23 | 上海城建市政工程（集团）有限公司 | A kind of mechanical device and its application method of changeable cutterhead aperture opening ratio |
| CN210931876U (en) * | 2019-08-14 | 2020-07-07 | 郑州儿童医院 | Novel sharp instrument box |
| CN110725692A (en) * | 2019-11-22 | 2020-01-24 | 中交隧道工程局有限公司 | Telescopic center cutting knife device of shield tunneling machine |
| CN110821506A (en) * | 2019-12-06 | 2020-02-21 | 中铁隧道局集团有限公司 | Shield constructs machine with telescopic ordinary pressure trades sword storehouse |
| CN211950498U (en) * | 2020-02-27 | 2020-11-17 | 北京交通大学 | Model test cutter head device capable of changing opening rate and cutter type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113446018A (en) | 2021-09-28 |
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