CN211924170U - Excavation device and entry driving machine of half horse shield machine - Google Patents
Excavation device and entry driving machine of half horse shield machine Download PDFInfo
- Publication number
- CN211924170U CN211924170U CN202020598001.1U CN202020598001U CN211924170U CN 211924170 U CN211924170 U CN 211924170U CN 202020598001 U CN202020598001 U CN 202020598001U CN 211924170 U CN211924170 U CN 211924170U
- Authority
- CN
- China
- Prior art keywords
- cutter head
- excavation
- excavating
- arm
- shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a half horse shield constructs excavation device and entry driving machine of machine has solved the problem that half horse shield constructs the machine excavation inefficiency among the prior art. The utility model discloses a set up at shield body cross section upper portion's digging arm device and set up the rotatory cutter head device of combination formula in shield body cross section lower part, the rotatory cutter head device of combination formula is connected with the actuating system who sets up at the shield body. The excavation face of the excavation arm device is positioned in front of the excavation face of the combined type rotary cutter head device 1, and the tunnel face is excavated in advance relative to the combined type rotary cutter head device. The utility model is suitable for a geology such as loess, clay, digging arm device excavation section is preceding, and combination formula rotary cutter head device excavation section is back, forms the step, has increased excavation working face area, and interference is little around, is favorable to the face to be stable; the construction cost is reduced, and the construction safety is improved.
Description
Technical Field
The utility model relates to a tunnel construction technical field especially indicates a half horse shield constructs excavation device and entry driving machine of machine.
Background
In the present mountain tunnel construction, a drilling and blasting method, a step method, a three-step method, a double-side wall pilot tunnel method, a middle partition (CD) method, a cross middle partition (CRD) method, and the like are frequently used. Most of the support devices adopt anchor rods and sprayed concrete to support tunnels and control deformation and relaxation of surrounding rocks. However, if a fault fracture zone is encountered in the construction process, because the geology has the characteristics of poor rock mass stability, low strength, poor water permeability, easy deformation, poor compressibility and the like, the surrounding rock structure is extremely unstable, the self-bearing capacity is weak, accidents such as collapse, roof collapse and the like can often occur, and great influence is caused on the tunnel construction safety.
Professional technicians at home and abroad carry out a great deal of research on the shield construction method adopted by the horseshoe tunnel, such as: a mud-water balance type U-shaped shield machine cuts a U-shaped tunnel by using a cutter head consisting of a large circular cutter head and a special-shaped cutter head (eccentrically swinging), and keeps the stability of an excavation surface by using a mud-water balance mode; a U-shaped shield machine with an oversized section utilizes the earth pressure balance principle, adopts a plurality of circular cutter heads distributed from front to back for excavation, and uses the latest ring of assembled pipe pieces as a supporting foundation for propelling the whole machine, and the machine type has a successful application case in a Mongolian railway white city tunnel; a shield machine for cast-in-situ supporting of a horseshoe-shaped section tunnel adopts the earth pressure balance principle to carry out tunneling, takes an assembled duct piece far away from a host machine as a supporting foundation, relies on counter force provided by friction, and carries out propelling of the whole machine through force transfer of a lever and a spherical hinge, and the tunneling is formed by combining three circular cutter discs and three eccentric rotary cutter discs on the same plane; a shield tunneling machine for a tunnel with a special-shaped cross section (hitachi ship co., ltd.) can easily excavate a tunnel with a special-shaped cross section by controlling the advancing and retreating amount of each cutter disc spoke according to the rotation angle of the cutter disc and the advancing and retreating amount of the copying cutter, excavating a short diameter portion with the cutter disc spoke when the copying cutter retreats, and excavating a long diameter portion when the copying cutter protrudes; a first cutter disc and a second cutter disc of a front section shell, an eccentric multi-shaft special-shaped cutter disc positioned behind the first cutter disc and the second cutter disc, a first cutter disc drive used for driving the first cutter disc to do circular motion, a second cutter disc drive used for driving the second cutter disc to do circular motion and an eccentric multi-shaft special-shaped cutter disc drive used for driving the eccentric multi-shaft special-shaped cutter disc to do eccentric rotary motion are arranged according to a set angle, the first cutter disc and the second cutter disc are both X-shaped spoke type cutter discs, the set angle difference is 80-100 degrees, and the center distance between the first cutter disc and the second cutter disc is smaller than the sum of the radiuses of the first cutter disc and the second cutter disc. The first cutter disc and the second cutter disc do not collide with each other and excavate on the first working face, the eccentric multi-shaft special-shaped cutter disc continues to cut on the second working face, the whole cutter disc device cuts the largest area in the rectangular cross section, the whole excavated face is rectangular, and the purpose of comprehensive cutting is achieved.
In conclusion, the technology for excavating the special-shaped tunnel at home and abroad is various and has various characteristics. In order to solve the requirements of high mobility of the cut soil body caused by huge cost of equipment and super-wide section of the horseshoe, an excavation system scheme with high construction reliability, low cost and better improvement of muck is needed.
SUMMERY OF THE UTILITY MODEL
Not enough to among the above-mentioned background art, the utility model provides a half horse shield constructs excavation device and entry driving machine of machine has solved the problem that tunnel construction factor of safety is low among the prior art.
The technical scheme of the utility model is realized like this: an excavating device of a half-horse shield machine comprises an excavating arm device arranged on the upper part of the cross section of a shield body and a combined type rotary cutter head device arranged on the lower part of the cross section of the shield body, wherein the combined type rotary cutter head device is connected with a driving system arranged in the shield body; and the excavation surface of the excavation arm device is positioned in front of the excavation surface of the combined type rotary cutter head device.
The combined rotary cutter head device comprises a rear auxiliary cutter head and a front combined cutter head set consisting of at least two front cutter heads, wherein the front combined cutter head set is positioned in front of the rear auxiliary cutter head, and the front cutter heads are positioned in the same plane.
The front combined cutter disc set comprises a front cutter disc I, a front cutter disc II, a front cutter disc III and a front cutter disc VI, the front cutter disc II and the front cutter disc III are symmetrically arranged at the middle part of the cross section of the shield body, and the front cutter disc I and the front cutter disc VI are symmetrically arranged at two sides of the cross section of the shield body.
The front cutter head I is positioned above the left side of the front cutter head II, and the front cutter head I and the front cutter head II have the same rotating speed and opposite rotating directions; the front cutter head VI is positioned at the upper right part of the front cutter head III, and the front cutter head III and the front cutter head VI rotate at the same speed and rotate in opposite directions; the front cutter head II and the front cutter head III have the same rotating speed and reverse rotating directions.
The front cutter head comprises a main shaft sleeve, a cutter beam arranged in a Y shape is arranged on the main shaft sleeve, a central fishtail cutter is arranged at the center of the main shaft sleeve, and a cutter is arranged on the cutter beam.
And the rear auxiliary cutter head is positioned above the left side of the front cutter head I and above the right side of the front cutter head VI.
The shield body is internally provided with a beam, and the excavating arm device is arranged on the beam through a sliding mechanism.
The excavating arm device comprises an excavating arm I and an excavating arm II, wherein the excavating arm I and the excavating arm II are symmetrically arranged on the cross beam.
Excavation arm I and excavation arm II all include arm and excavation head, and the one end setting of arm is on the crossbeam, and the other end is connected with the excavation head.
A heading machine comprises the excavating device of the half horse shield machine.
The utility model is suitable for a geology such as loess, clay, digging arm device excavation section is preceding, and combination formula rotary cutter head device excavation section is back, forms the step, has increased excavation working face area, and interference is little around, is favorable to the face to be stable; the construction cost is reduced, and the construction safety is improved.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.
Fig. 1 is a schematic view of the whole structure of the present invention.
Figure 2 is the utility model discloses excavation device orthographic view schematic diagram.
Fig. 3 is a schematic view of the front cutter head structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1 and 2, in embodiment 1, an excavating device of a half-horse shield tunneling machine, the excavating section of which is horseshoe-shaped, comprises an excavating arm device 2 arranged on the upper part of the cross section of a shield body 3 and a combined rotary cutter head device 1 arranged on the lower part of the cross section of the shield body 3, wherein the combined rotary cutter head device 1 is connected with a driving system 4 arranged in the shield body 3 to drive the combined rotary cutter head device 1 to rotate, so as to excavate a tunnel face. The excavating arm device 2 is used for excavating the horseshoe-shaped upper section, and the combined type rotary cutter head device 1 is used for excavating the horseshoe-shaped lower section. Excavation face of digging arm device 2 is located the place ahead of combination formula rotary cutter head device 1 excavation face, and the combined type rotary cutter head device 1 carries out the advance excavation to the face relatively, and the advance excavation distance is the distance of a ring section of jurisdiction, forms the ladder excavation, improves excavation efficiency.
Further, the combined rotary cutter head device 1 comprises a front combined cutter head set composed of a rear auxiliary cutter head 7 and at least two front cutter heads, the front combined cutter head set is located in front of the rear auxiliary cutter head 7, the front cutter heads are located in the same plane, namely, the plane where the front combined cutter head set is located, and the rear auxiliary cutter head is used for performing supplementary excavation on gaps of the front combined cutter head set.
Furthermore, the front combined cutter disc set comprises a front cutter disc I101, a front cutter disc II 102, a front cutter disc III 103 and a front cutter disc VI 104, and the four cutter discs are located on the same plane, are mutually independent and do not interfere with each other. The front cutterhead II 102 and the front cutterhead III 103 are symmetrically arranged in the middle of the cross section of the shield body 3, the front cutterhead I101 and the front cutterhead VI 104 are symmetrically arranged on two sides of the cross section of the shield body 3, namely the front cutterhead II 102 and the front cutterhead III 103 are located in the middle of the horseshoe-shaped section and close to the lower position and are symmetrically arranged relative to the center line of the section, and the front cutterhead I101 and the front cutterhead VI 104 are respectively located on the left wing and the right wing of the lower half part of the horseshoe-. Preferably, the front cutter head I101 is positioned at the left upper part of the front cutter head II 102, and the front cutter head I101 and the front cutter head II 102 have the same rotating speed and opposite rotating directions; the front cutter head VI 104 is positioned at the upper right part of the front cutter head III 103, and the front cutter head III 103 and the front cutter head VI 104 have the same rotating speed and opposite rotating directions; the front cutter head II 102 and the front cutter head III 103 have the same rotating speed and reverse rotating directions, comprehensive noninterference excavation is carried out on the tunnel face, and excavation efficiency is improved.
As shown in fig. 3, in embodiment 2, each front cutter head includes a main shaft sleeve 101c, three cutter beams 101b arranged in a Y shape are disposed on the main shaft sleeve 101c, a central fishtail cutter 101a is disposed at the center of the main shaft sleeve 101c, and cutters 101d or super-cutters are uniformly distributed on the cutter beams 101 b. Advance excavation is carried out to the face through central fishtail sword and cutter, back auxiliary cutter head 7 is located the upper left side of preceding cutterhead I101 and the upper right side of preceding cutterhead VI 104. The rear auxiliary cutter head 7 performs supplementary excavation on the tunnel face at the gap between the four front cutter heads, so that the excavation area and the excavation efficiency are improved.
Further, be equipped with crossbeam 301 in the shield body 3, digging arm device 2 sets up on crossbeam 301 through glide machanism, and glide machanism can adopt hydro-cylinder or other movement drive mechanism, promotes the digging arm device and removes along the crossbeam, realizes that the digging arm can remove along the crossbeam on the shield body about, and whole digging arm device is responsible for the excavation of the first half section of horseshoe. The excavating arm device 2 comprises an excavating arm I201 and an excavating arm II 202, wherein the excavating arm I201 and the excavating arm II 202 are symmetrically arranged on a cross beam 301. Excavation efficiency is improved by the simultaneous reciprocating excavation of the two excavating arm devices.
Preferably, the excavating arm I201 and the excavating arm II 202 both comprise a mechanical arm 201a and an excavating head 201b, one end of the mechanical arm 201a is arranged on the cross beam 301, and the other end of the mechanical arm 201a is connected with the excavating head 201 b. The mechanical arm 201a drives the excavation head to move in multiple degrees of freedom, and flexible excavation of the tunnel face is achieved.
The other structure is the same as embodiment 1.
The workflow of this embodiment is as follows:
in the excavating arm device shown in fig. 1, an excavating arm I and an excavating arm II extend upwards and forwards, are inserted into a tunnel face, are used for separating muck from the tunnel face through a grabbing action, move along a cross beam to adjust the position of an excavating arm fulcrum and the left-right extending angle of the excavating arm, and repeat the actions to excavate the upper half part of the tunnel face. In the cutterhead device shown in fig. 1, it is assumed that the front cutterhead I rotates anticlockwise by taking the center line of the knife beam with the initial phase pointing to the 9-point direction as an initial reference, and the anticlockwise rotation is positive, firstly, the initial phase angle between the front cutterhead II and the front cutterhead I is-95 degrees, the initial phase angle between the front cutterhead III and the front cutterhead II is-70 degrees, and the initial phase angle between the front cutterhead VI and the front cutterhead III is-45 degrees. When the front cutter head I rotates anticlockwise, the rotating speeds of the front cutter head II and the front cutter head III are the same and reverse, the rotating speeds of the front cutter head I and the front cutter head II are the same and reverse, the rotating speeds of the front cutter head VI and the front cutter head III are the same and reverse, and the four cutter heads are positioned on the same plane, are independent and do not interfere with each other; the cutter head crushes, filters and stirs the crushed stone blocks, so that the crushed stone blocks are smoothly sent out of the face of the tunnel by the conveyor. The four cutter heads rotate in the same plane, each cutter head is independent and mutually noninterfere, and the rotation is combined and synchronous, so that the four cutter heads jointly fit and excavate the lower half part of the horseshoe-shaped section, and the rest areas are provided with two auxiliary rear cutter heads for assisting excavation. The excavating arm device excavates a horseshoe-shaped upper section and leads the combined type rotary cutter head device to excavate a horseshoe-shaped lower section ring. The four cutter heads are used for excavating the section in front, the auxiliary cutter heads are used for excavating the section in back, and comprehensive and efficient excavation is carried out on the tunnel face.
As shown in fig. 1, example 3: the utility model provides a heading machine, includes embodiment 2 half horse shield constructs the excavation device of machine, still including 5, the screw conveyer that is used for slagging tap to be located the lower part of combination formula rotary cutter device, erector 6 is located the afterbody of shield body 3 for to assembling of prefabricated section of jurisdiction. A drive system 4 in the shield body 3 drives the cutterheads in the modular rotary cutterhead unit 2 in rotation, a drive being provided for each cutterhead of the modular rotary cutterhead unit 2.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a half horse shield constructs excavation device of machine which characterized in that: the device comprises an excavating arm device (2) arranged at the upper part of the cross section of a shield body (3) and a combined type rotary cutter head device (1) arranged at the lower part of the cross section of the shield body (3), wherein the combined type rotary cutter head device (1) is connected with a driving system (4) arranged in the shield body (3); the excavation surface of the excavation arm device (2) is positioned in front of the excavation surface of the combined type rotary cutter head device (1).
2. The excavating device of the semi-horse shield tunneling machine according to claim 1, wherein: the combined rotary cutter head device (1) comprises a rear auxiliary cutter head (7) and a front combined cutter head set consisting of at least two front cutter heads, wherein the front combined cutter head set is positioned in front of the rear auxiliary cutter head (7), and the front cutter heads are positioned in the same plane.
3. The excavating device of the semi-horse shield tunneling machine according to claim 2, wherein: preceding combination cutter head group includes preceding cutter head I (101), preceding cutter head II (102), preceding cutter head III (103) and preceding cutter head VI (104), and preceding cutter head II (102) and preceding cutter head III (103) symmetry set up in the middle part of shield body (3) cross section, and preceding cutter head I (101) and preceding cutter head VI (104) symmetry set up the both sides at shield body (3) cross section.
4. The excavating device of the semi-horse shield tunneling machine according to claim 3, wherein: the front cutter head I (101) is positioned above the left side of the front cutter head II (102), and the front cutter head I (101) and the front cutter head II (102) have the same rotating speed and opposite rotating directions; the front cutter head VI (104) is positioned at the upper right part of the front cutter head III (103), and the front cutter head III (103) and the front cutter head VI (104) have the same rotating speed and opposite rotating directions; and the front cutter head II (102) and the front cutter head III (103) have the same rotating speed and reverse rotating directions.
5. The excavating device of the semi-horse shield tunneling machine according to claim 3 or 4, wherein: the front cutter head comprises a main shaft sleeve (101 c), a cutter beam (101 b) arranged in a Y shape is arranged on the main shaft sleeve (101 c), a central fishtail cutter (101 a) is arranged at the center of the main shaft sleeve (101 c), and a cutter (101 d) is arranged on the cutter beam (101 b).
6. The excavating device of the semi-horse shield tunneling machine according to claim 5, wherein: the rear auxiliary cutterhead (7) is positioned above the left side of the front cutterhead I (101) and above the right side of the front cutterhead VI (104).
7. The excavating device of the semi-horse shield tunneling machine according to any one of claims 1 to 4 and 6, wherein: be equipped with crossbeam (301) in the shield body (3), excavate arm device (2) and set up on crossbeam (301) through glide machanism.
8. The excavating device of the semi-horse shield tunneling machine according to claim 7, wherein: the excavating arm device (2) comprises an excavating arm I (201) and an excavating arm II (202), wherein the excavating arm I (201) and the excavating arm II (202) are symmetrically arranged on the cross beam (301).
9. The excavating device of the semi-horse shield tunneling machine according to claim 8, wherein: digging arm I (201) and digging arm II (202) all include arm (201 a) and excavation head (201 b), and the one end setting of arm (201 a) is on crossbeam (301), and the other end is connected with excavation head (201 b).
10. A heading machine is characterized in that: excavation apparatus comprising a semi-horse shield machine according to any one of claims 1 to 4, 6, 8 and 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020598001.1U CN211924170U (en) | 2020-04-21 | 2020-04-21 | Excavation device and entry driving machine of half horse shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020598001.1U CN211924170U (en) | 2020-04-21 | 2020-04-21 | Excavation device and entry driving machine of half horse shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924170U true CN211924170U (en) | 2020-11-13 |
Family
ID=73329093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020598001.1U Active CN211924170U (en) | 2020-04-21 | 2020-04-21 | Excavation device and entry driving machine of half horse shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914879A (en) * | 2021-09-09 | 2022-01-11 | 中国矿业大学 | Cutter head for realizing high-efficiency rectangular hard rock shield under rotation-impact action |
-
2020
- 2020-04-21 CN CN202020598001.1U patent/CN211924170U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914879A (en) * | 2021-09-09 | 2022-01-11 | 中国矿业大学 | Cutter head for realizing high-efficiency rectangular hard rock shield under rotation-impact action |
| CN113914879B (en) * | 2021-09-09 | 2023-02-21 | 中国矿业大学 | Cutter head for realizing high-efficiency rectangular hard rock shield under rotation-impact action |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107218048B (en) | Horseshoe-shaped heading machine propelled by crawler belt | |
| CN109209413B (en) | Flexible arm heading machine for digging tunnel with arbitrary section by multiple cutter discs supported by robot | |
| CN108825256B (en) | Multi-arm cantilever tunneling machine and construction method thereof | |
| CN109139028B (en) | Arc-cutting shield tunneling machine cutterhead | |
| CN110529139B (en) | Hard rock cutter head and cantilever tunneling machine comprising same | |
| CN108868809A (en) | A kind of multi-arm type cantilever excavator and its construction method for carrying hobboing cutter broken rock | |
| CN211924170U (en) | Excavation device and entry driving machine of half horse shield machine | |
| CN109441468B (en) | Shield excavation surface impact loosening and crushing device and working method thereof | |
| CN111594210A (en) | Hard rock tunnel construction method | |
| CN103703215B (en) | Excavating gear | |
| CN111140246A (en) | Full-section multifunctional non-explosive excavating equipment | |
| CN112145192A (en) | Soft rock tunnel boring machine and construction method thereof | |
| CN112682057A (en) | Heading machine cutter head suitable for extremely hard rock stratum | |
| CN108952744A (en) | A kind of cantilever excavator and its construction method for carrying hobboing cutter broken rock | |
| CN210564541U (en) | Quick heading machine | |
| CN109505619A (en) | A kind of plain type hard rock TBM | |
| CN109882189B (en) | Horseshoe-shaped half-section shield machine suitable for fault fracture zone and construction method | |
| CN211258615U (en) | Novel oscillating type flexible arm TBM | |
| CN209354152U (en) | Plain type hard rock TBM | |
| CN217001866U (en) | Flexible arm tunneling machine | |
| CN109630147B (en) | Meshing type multi-cutter-disc excavating device and heading machine comprising same | |
| CN215565940U (en) | Mining rock roadway heading machine | |
| CN209483358U (en) | Engagement type multi-cutter-disk excavating device and the development machine including the device | |
| CN204941554U (en) | A kind of for Double-cutter structure inside and outside underground pipeline excavating gear | |
| CN210977490U (en) | TBM cutter head with large expanding and digging capacity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |