CN113236268A - Arrangement structure of small-diameter shield tunneling machine profiling cutter tool - Google Patents
Arrangement structure of small-diameter shield tunneling machine profiling cutter tool Download PDFInfo
- Publication number
- CN113236268A CN113236268A CN202110638934.8A CN202110638934A CN113236268A CN 113236268 A CN113236268 A CN 113236268A CN 202110638934 A CN202110638934 A CN 202110638934A CN 113236268 A CN113236268 A CN 113236268A
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- cutter
- profiling
- breast board
- shield tunneling
- tunneling machine
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- 230000005641 tunneling Effects 0.000 title claims abstract description 31
- 210000000481 breast Anatomy 0.000 claims abstract description 40
- 239000003921 oil Substances 0.000 claims description 28
- 239000002689 soil Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 210000000038 chest Anatomy 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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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
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- 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 relates to an arrangement structure of a profiling cutter machine of a small-diameter shield tunneling machine, which comprises a profiling cutter hydraulic driving device, a profiling cutter, a cutter driving unit, a shield tunneling machine shell and a cutter, wherein the profiling cutter is arranged in a cutter spoke, and a cutter bracket is arranged on a central chest plate of the shield tunneling machine; a profiling cutter hydraulic power unit is arranged on the central breast board, the central breast board is connected with the inner ring of a main drive bearing, and the outer ring of the main drive bearing is fixedly connected on a shield machine shell; the central breast board rotates along with the rotation of the inner ring of the main bearing; and the cutter head driving unit is connected with the shield machine shell. The profiling cutter and the driving hydraulic system of the shield tunneling machine are arranged on the same revolution surface; the cutter head and the driving hydraulic pipeline are in a relatively static state in the rotating process of the cutter head, and a central rotary joint can be omitted, namely, the driving hydraulic pipeline does not need to be connected into a profiling cutter propulsion oil cylinder in the cutter head through the central rotary joint. At the same time, space can be freed for arranging the passage doors.
Description
Technical Field
The invention relates to a small-diameter shield tunneling machine profiling cutter arrangement structure, in particular to an arrangement structure used under the working condition that a shield tunneling machine needs to be opened and a cutter needs to be replaced.
Background
At present, in a tunnel shield machine, a profiling cutter is one of very important parts, and is mainly used for radial overexcavation of a soil body when curve construction, turning or deviation correction is carried out in the shield construction process, so that curve propulsion, smooth turning and deviation correction are realized, and disturbance on the peripheral soil body is small.
The profiling cutter is generally installed in a cutter head (usually in a spoke), normally retracted in the cutter head and extended out during working, a hydraulic cylinder is usually adopted as an actuating mechanism for telescopic movement, an oil inlet and return pipeline needs to be introduced from a shield tunneling machine, and the operation is basically realized by using a central rotating device. When the shield machine needs to realize the opening and tool changing work, a passing door needs to be arranged, so that maintenance personnel can enter the soil bin from the shield machine and safely return. When the diameter of the shield machine is small, for example, the outer diameter is less than 3-4 meters, in a conventional peripheral transmission structure, a central revolving device needs to be arranged at the central position of a breast board of the shield machine, the overall dimension is large (generally reaching phi 600mm), and a pass gate and the central revolving device are arranged in an inner diameter area of an inner ring of a main revolving bearing, so that the simultaneous realization is difficult.
Disclosure of Invention
The invention aims to: a structure for arranging the air gate and the profiling cutter and the hydraulic drive device thereof in a small-diameter shield tunneling machine is provided when a peripheral transmission structure is adopted and a central rotary device is not used.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an arrangement structure of a small-diameter shield tunneling machine profiling cutter machine comprises a profiling cutter hydraulic driving device, a profiling cutter, a cutter driving unit, a shield tunneling machine shell and a cutter, wherein the profiling cutter is arranged in a cutter spoke, and a cutter bracket is arranged on a central chest plate of the shield tunneling machine; a profiling cutter hydraulic power unit is arranged on the central breast board, the central breast board is connected with the inner ring of a main drive bearing, and the outer ring of the main drive bearing is fixedly connected on a shield machine shell; the central breast board rotates along with the rotation of the inner ring of the main bearing; and the cutter head driving unit is connected with the shield machine shell.
Furthermore, the main drive bearing adopts an internal tooth type three-row roller slewing bearing, a plurality of cutter head drive units are arranged in the inner ring area of the main drive bearing, gears of the cutter head drive units are meshed with an inner gear ring on the inner ring of the main drive bearing, the inner gear ring is driven to rotate during rotation, the inner ring of the main drive bearing is driven to rotate, and then the central breast board is driven to rotate.
Further, the cutter head driving unit adopts a hydraulic or motor driving mode.
Furthermore, the profiling knife hydraulic driving device adopts a closed hydraulic oil tank, and is connected with a pushing oil cylinder of the profiling knife through an oil inlet and an oil return path, so that power oil is provided for the stretching of the pushing oil cylinder of the profiling knife.
Furthermore, the oil inlet and return paths penetrate through the central breast board and the cutterhead bracket, are connected to a pushing oil cylinder of a profiling cutter arranged in a cutterhead spoke, and rotate along with the rotation of the central breast board.
Furthermore, a passage for maintenance personnel to enter and exit the soil bin is formed in the central breast board, and a passing door is arranged on the surface of the central breast board facing the inner side of the shield tunneling machine.
Furthermore, a gear, a passing door and a profiling cutter hydraulic driving device of the cutter head driving unit can be enveloped in an inner ring of the main driving bearing.
The invention has the beneficial effects that:
arranging a profiling cutter and a driving hydraulic system of the shield tunneling machine on the same revolution surface; the cutter head and the driving hydraulic pipeline are in a relatively static state in the rotating process of the cutter head, and a central rotary joint can be omitted, namely, the driving hydraulic pipeline does not need to be connected into a profiling cutter propulsion oil cylinder in the cutter head through the central rotary joint. At the same time, space can be freed for arranging the passage doors.
Drawings
FIG. 1 is an axial cross-sectional schematic view of the present invention for general arrangement;
FIG. 2 is a schematic front view of the present invention for the overall arrangement;
fig. 3 is an enlarged schematic view of a hydraulic drive mounting position of the following knife.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 3, the arrangement structure of the profiling cutter tool of the small-diameter shield tunneling machine of the present invention comprises: the device comprises a traveling knife hydraulic driving device 1, a main driving bearing 2, a central breast board 3, a traveling knife 4, an air gate 5, a cutter head driving unit 6, a shield machine shell 7, a cutter head 8 and an oil inlet and return pipe 9.
The main driving bearing 2 is arranged at the corresponding position of the shield machine shell 7, and the outer ring 2-1 of the main driving bearing is connected with the shield machine shell 7 through bolts. The central breast plate 3 and the inner ring 2-2 of the main drive bearing 2 are connected by bolts.
The cutter head 8 is connected with the central breast board 3 in a bolt connection mode. A profiling cutter 4 is arranged in one spoke of the cutter head 8, and an oil inlet pipe 9 and an oil return pipe 9 of the profiling cutter penetrate through the central breast board 3 through a cutter head bracket and are connected into the shield machine.
A passage for maintenance personnel to enter and exit the soil bin is formed in the central breast board 3, and an air lock door 5 is arranged on the surface of the central breast board facing the inner side of the shield tunneling machine. After the air lock door 5 is closed, a peripheral slipknot bolt 5-2 is adopted for fastening.
In the shield tunneling machine, the side of the central breast board 3 is close to the spoke where the profiling knives 4 are arranged, the hydraulic drive 1 of the profiling knives is arranged in the area which does not influence the opening and closing of the air gate 5 and the entering and exiting of personnel, and the hydraulic drive is connected by bolts. The copying knife is hydraulically driven by the copying knife 1 to pump power oil out, the power oil enters a rodless cavity of an oil cylinder of the copying knife 4 through an oil pipe 9, and a piston rod extends out to drive a copying knife head to extend out.
The cutter head driving unit 6 is connected with the shield machine shell 7 through bolts and can adopt a hydraulic or motor driving mode. The gear of the cutter head driving unit 6 is meshed with the inner gear ring 2-2-1 on the inner ring 2-2 of the main driving bearing 2. When the shield machine works, the inner ring 2-2 of the main driving bearing 2 is driven to rotate, and then the central breast board 3 is driven to rotate.
Because the profiling knife 4 and the profiling knife hydraulic driving device 1 are both arranged on the central breast board 3, the positions are fixed, and the profiling knife hydraulic driving device rotate in the same direction along with the rotation of the central breast board 3, and no dislocation is generated between the profiling knife 4 and the profiling knife hydraulic driving device. Therefore, the structural form that a central rotating device is adopted in the design of the shield tunneling machine to convey hydraulic oil of the profiling cutter is not needed.
The arrangement structure of the small-diameter shield tunneling machine profiling cutter tool has the following characteristics:
(1) the profiling cutter is arranged in the cutter head spoke, and an oil inlet and return path of a telescopic oil cylinder of the profiling cutter is connected into the shield tunneling machine body through an inner cavity of the cutter head bracket; the cutter head bracket is arranged on a central chest plate of the shield tunneling machine; the profiling knife hydraulic power unit is arranged on a central breast board which is connected with an inner ring of the main drive bearing. The cutter head rotates along with the rotation of the central breast board.
(2) The shield machine adopts an internal tooth type three-row roller slewing bearing as a main driving bearing, a plurality of cutter head driving units are arranged in the area of the inner ring of the bearing, and a gear of the cutter head driving units is meshed with the internal teeth of the inner ring of the main driving bearing to transmit the power of a cutter head.
(3) The air lock gate is arranged on a center breast plate connected with the inner ring of the main bearing. Thus, the copying knife and the copying knife drive hydraulic means are arranged to be on the same plane of revolution, while rotating without a dislocation.
(4) The diameter of the inner ring of the main driving bearing is large enough to meet the requirement of the minimum accommodating space of a gear, an air gate, a profiling cutter hydraulic drive and the like of an envelope cutter head driving unit. The outer ring of the main driving bearing is fixedly connected to the shield machine shell; a center breast plate connected to the inner ring of the main bearing rotates as the inner ring of the main bearing rotates.
(5) The cutter head driving unit is connected with the shield machine shell and can adopt a hydraulic or motor driving mode. The gear of the cutter head driving unit is meshed with the inner gear ring on the main bearing inner ring, and the inner gear ring is driven to rotate when the cutter head driving unit rotates, so that the main bearing inner ring is driven to rotate, and the central breast board is driven to rotate.
(6) The profiling knife hydraulic driving device adopts a closed hydraulic oil tank to provide power oil for the profiling knife oil cylinder during stretching. The oil inlet and return pipelines pass through the central breast board and the cutterhead bracket and are connected to a pushing oil cylinder of a profiling cutter arranged in a cutterhead spoke, and the device rotates along with the rotation of the central breast board.
(7) The central breast board is provided with a passage for maintenance personnel to enter and exit the soil bin, and the surface of the central breast board facing the inner side of the shield tunneling machine is provided with a passing door.
Claims (7)
1. The utility model provides an arrangement structure of minor diameter shield constructs quick-witted profiling cutter machines, contains profiling cutter hydraulic drive device, profiling cutter, blade disc drive unit, shield constructs casing, blade disc, its characterized in that: the profiling cutters are arranged in cutter head spokes, and the cutter head bracket is arranged on a central breast board of the shield tunneling machine; a profiling cutter hydraulic power unit is arranged on the central breast board, the central breast board is connected with the inner ring of a main drive bearing, and the outer ring of the main drive bearing is fixedly connected on a shield machine shell; the central breast board rotates along with the rotation of the inner ring of the main bearing; and the cutter head driving unit is connected with the shield machine shell.
2. The arrangement structure of the small-diameter shield tunneling machine profiling cutter tool according to claim 1, characterized in that: the main drive bearing adopts an internal gear type three-row roller slewing bearing, a plurality of cutter head drive units are arranged in the inner ring area of the main drive bearing, gears of the cutter head drive units are meshed with an inner gear ring on the inner ring of the main drive bearing, the inner gear ring is driven to rotate during rotation, the inner ring of the main drive bearing is driven to rotate, and then the central breast board is driven to rotate.
3. The arrangement structure of the small-diameter shield tunneling machine profiling cutter tool according to claim 1, characterized in that: the cutter head driving unit adopts a hydraulic or motor driving mode.
4. The arrangement structure of the small-diameter shield tunneling machine profiling cutter tool according to claim 1, characterized in that: the profiling knife hydraulic driving device adopts a closed hydraulic oil tank, is connected with a pushing oil cylinder of the profiling knife through an oil inlet and return path, and provides power oil for the stretching of the pushing oil cylinder of the profiling knife.
5. The arrangement structure of a small-diameter shield tunneling machine copying tool machine according to claim 4, characterized in that: the oil inlet and return paths penetrate through the central breast board and the cutterhead bracket, are connected to a pushing oil cylinder of a profiling cutter arranged in a cutterhead spoke, and rotate along with the rotation of the central breast board.
6. The arrangement structure of the small-diameter shield tunneling machine profiling cutter tool according to claim 1, characterized in that: and a passage for maintenance personnel to enter and exit the soil bin is formed in the central breast board, and a passing door is arranged on the surface of the central breast board facing the inner side of the shield tunneling machine.
7. The arrangement structure of a small-diameter shield tunneling machine copying tool machine according to claim 6, characterized in that: and the inner ring of the main drive bearing can envelop a gear, a passing door and a profiling cutter hydraulic drive device of the cutter head drive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110638934.8A CN113236268B (en) | 2021-06-08 | 2021-06-08 | Arrangement structure of small-diameter shield tunneling machine profiling cutter tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110638934.8A CN113236268B (en) | 2021-06-08 | 2021-06-08 | Arrangement structure of small-diameter shield tunneling machine profiling cutter tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113236268A true CN113236268A (en) | 2021-08-10 |
| CN113236268B CN113236268B (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110638934.8A Active CN113236268B (en) | 2021-06-08 | 2021-06-08 | Arrangement structure of small-diameter shield tunneling machine profiling cutter tool |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000034889A (en) * | 1998-07-21 | 2000-02-02 | Mitsubishi Heavy Ind Ltd | Cutter device and tunnel boring machine |
| JP2000087681A (en) * | 1998-09-16 | 2000-03-28 | Mitsubishi Heavy Ind Ltd | Shield excavation device, and constructing method of tunnel using the same |
| JP2000282778A (en) * | 1999-03-29 | 2000-10-10 | Taisei Corp | Shield machine |
| CN1420256A (en) * | 2001-11-21 | 2003-05-28 | 三菱重工业株式会社 | Tunnel excavator and method for recovery of tunnel excavator |
| CN103987921A (en) * | 2012-01-24 | 2014-08-13 | 日立造船株式会社 | Bit exchange method and bit exchange device for shield tunneling machine |
| CN105156125A (en) * | 2015-07-29 | 2015-12-16 | 中国铁建重工集团有限公司 | Shield tunnel heading machine |
| CN105697027A (en) * | 2015-12-08 | 2016-06-22 | 中国铁建大桥工程局集团有限公司 | Multi-balance comprehensive tube push bench for water-rich sand and gravel stratum |
-
2021
- 2021-06-08 CN CN202110638934.8A patent/CN113236268B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000034889A (en) * | 1998-07-21 | 2000-02-02 | Mitsubishi Heavy Ind Ltd | Cutter device and tunnel boring machine |
| JP2000087681A (en) * | 1998-09-16 | 2000-03-28 | Mitsubishi Heavy Ind Ltd | Shield excavation device, and constructing method of tunnel using the same |
| JP2000282778A (en) * | 1999-03-29 | 2000-10-10 | Taisei Corp | Shield machine |
| CN1420256A (en) * | 2001-11-21 | 2003-05-28 | 三菱重工业株式会社 | Tunnel excavator and method for recovery of tunnel excavator |
| CN103987921A (en) * | 2012-01-24 | 2014-08-13 | 日立造船株式会社 | Bit exchange method and bit exchange device for shield tunneling machine |
| CN105156125A (en) * | 2015-07-29 | 2015-12-16 | 中国铁建重工集团有限公司 | Shield tunnel heading machine |
| CN105697027A (en) * | 2015-12-08 | 2016-06-22 | 中国铁建大桥工程局集团有限公司 | Multi-balance comprehensive tube push bench for water-rich sand and gravel stratum |
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| Publication number | Publication date |
|---|---|
| CN113236268B (en) | 2023-01-24 |
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