CN111878107A - Cantilever swing type hard rock roadway heading machine - Google Patents
Cantilever swing type hard rock roadway heading machine Download PDFInfo
- Publication number
- CN111878107A CN111878107A CN202010885780.8A CN202010885780A CN111878107A CN 111878107 A CN111878107 A CN 111878107A CN 202010885780 A CN202010885780 A CN 202010885780A CN 111878107 A CN111878107 A CN 111878107A
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- Prior art keywords
- cantilever
- oil cylinder
- assembly
- seat
- hard rock
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- 239000011435 rock Substances 0.000 title claims abstract description 44
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 230000007704 transition Effects 0.000 claims description 2
- 230000005641 tunneling Effects 0.000 abstract description 17
- 239000003245 coal Substances 0.000 abstract description 6
- 238000009412 basement excavation Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002341 toxic gas Substances 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
- E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom
- E21D9/1033—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom by a transversely extending boom being pivotable about a longitudinal axis
-
- 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/1086—Drives or transmissions specially adapted therefor
-
- 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
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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 discloses a cantilever swing type hard rock roadway heading machine which comprises a walking assembly, a rack, a translation assembly and a cutting assembly, wherein the walking assembly is arranged on the rack; the frame is arranged on the walking assembly, the translation assembly comprises a first oil cylinder and a cantilever seat, one end of the first oil cylinder is connected with a supporting plate vertically arranged on the frame, and the other end of the first oil cylinder drives the cantilever seat to be arranged on the frame in a sliding manner; the cutting assembly comprises a cantilever, a cutter head and a hob assembly, one end of the cantilever is rotatably arranged on a cantilever base, the other end of the cantilever is fixedly connected with the cutter head, and a plurality of groups of hob assemblies are uniformly fixed on the cutter head through fixing blocks; the cantilever seat is provided with a driving component which drives the cantilever to horizontally rotate 0-100 degrees towards two sides respectively by taking the sliding direction of the cantilever seat as an axis. The cantilever swing type hard rock tunnel boring machine is simple in structure, capable of rapidly cutting rocks and improving the tunneling speed of a coal mine tunnel, flexible in rotation, capable of achieving tunneling of various tunnels through rotation of a large-range angle, and high in adaptability.
Description
Technical Field
The invention relates to the field of rock tunneling, in particular to a cantilever swing type hard rock roadway tunneling machine.
Background
In the prior art, a drilling and blasting method and a mechanical cutting tooth rock breaking method are mostly adopted for coal mine tunnel excavation, wherein the drilling and blasting method is high in efficiency and strong in applicability to stratum, but the dust and toxic gas emission amount is large, and major accidents such as gas explosion are easily caused, so that the safe, efficient and green mining of ore body resources is not facilitated, the cutting tooth commonly used by a coal mine tunneling machine is high in difficulty in cutting hard rock, large in load, easy to damage and needing to be frequently replaced, the rock tunnel excavation efficiency is low, the cost is high, the cutting tooth rock breaking mode is proved to be difficult to achieve economic excavation of the hard rock tunnel through underground experiments, and the excavation range of some tunneling machines is limited, and large-range excavation cannot be achieved.
Disclosure of Invention
The invention provides a cantilever swing type hard rock tunnel boring machine which is simple in structure, capable of realizing rapid cutting of rocks and improving the tunneling speed of a coal mine tunnel, capable of realizing large-scale tunneling through large-angle rotation, flexible in rotation and suitable for tunneling of various tunnels.
In order to achieve the aim, the cantilever swing type hard rock roadway heading machine comprises a walking assembly, a rack, a translation assembly and a cutting assembly;
the frame is arranged on the walking assembly, the translation assembly comprises a first oil cylinder and a cantilever seat, one end of the first oil cylinder is connected with a supporting plate vertically arranged on the frame, and the other end of the first oil cylinder drives the cantilever seat to be arranged on the frame in a sliding manner;
the cutting assembly comprises a cantilever, a cutter head and hob assemblies, one end of the cantilever is rotatably mounted on a cantilever base, the other end of the cantilever is fixedly connected with the cutter head, and a plurality of groups of hob assemblies are uniformly fixed on the cutter head through fixing blocks;
the cantilever seat is provided with a driving component which drives the cantilever to horizontally rotate 0-100 degrees towards two sides respectively by taking the sliding direction of the cantilever seat as an axis.
Furthermore, the drive assembly comprises a second oil cylinder and a third oil cylinder which are staggered up and down and are correspondingly arranged on two sides of the cantilever, and one end of the second oil cylinder and one end of the third oil cylinder are correspondingly rotatably arranged on the first lug seat and the second lug seat on the cantilever seat, and the other end of the second oil cylinder and the third oil cylinder are rotatably arranged on the cantilever.
Furthermore, the cantilever seat comprises a movable bottom plate arranged on the rack and a push plate vertically arranged on the movable bottom plate, one end of the second oil cylinder and one end of the third oil cylinder are rotatably arranged on the push plate, and the cantilever is rotatably arranged through a vertical supporting rotating shaft.
Further, every group hobbing cutter subassembly includes driving motor, speed reduction subassembly and dish type hobbing cutter, driving motor's output is connected with the dish type hobbing cutter through the speed reduction subassembly, and the dish type hobbing cutter is located the outside of blade disc.
Furthermore, the cutter head is of an inverted L-shaped structure, and the arc-shaped bending part of the cutter head is excessive.
Furthermore, a sliding groove is formed in the machine frame, and a guide rail matched with the sliding groove is arranged on the movable bottom plate.
Further, the cantilever is arranged on the cantilever seat through a slewing bearing.
Furthermore, a lifting platform moving up and down is arranged between the slewing bearing and the cantilever base.
Compared with the prior art, the cantilever oscillating type hard rock tunnel boring machine has the advantages that the cantilever seat is driven by the first oil cylinder to adjust the feeding amount, the driving assembly drives the cantilever to adjust the angle, the plurality of hob assemblies cut rocks, and the hard rock tunnel boring is propelled and rotated, so that the rock is more flexibly, and the hob assemblies can achieve the effect of cutting and breaking rocks by vibration due to the rotation of the cantilever, so that the performance of cutting and breaking rocks is further improved, and rapid cutting is realized;
the cantilever is rotatably arranged on the cantilever seat and is driven to rotate by the driving assembly, and the second oil cylinder and the third oil cylinder are staggered up and down and are correspondingly arranged on two sides of the cantilever, so that the mutual interference of the second oil cylinder and the third oil cylinder when the cantilever rotates is avoided, the rotation angle of the cantilever is larger, the adjustment of the rotation angle of 200 degrees is realized, the large-scale tunneling is realized by the rotation of a large angle, and the device is suitable for the tunneling of various roadways;
because the cutter head is of an inverted L-shaped structure, the arc-shaped bending part of the cutter head is excessive, on one hand, the upper rock layer is effectively supplemented and tunneled through the inverted L-shaped structure, so that the damage of the upper rock layer to the cutter head and the falling of the upper rock layer are avoided, on the other hand, the stress protection is effectively carried out on the cutter head during tunneling through the arc-shaped bending part, and the service life of the cutter head is longer; the cantilever is arranged on the cantilever seat through the slewing bearing, so that the large-range angle rotation of the cantilever is met, the load borne by the cantilever is larger, disc-type hobs with different sizes can be conveniently replaced, and the cantilever is suitable for different environments;
the cantilever swing type hard rock tunnel boring machine is simple in structure, not only realizes rapid cutting of rocks and improvement of the coal mine tunnel boring speed, but also is flexible in rotation, realizes large-scale boring through large-angle rotation, and is suitable for boring of various tunnels.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic view of the hob assembly of the present invention;
FIG. 3 is a schematic view of the cantilever mount of the present invention;
in the figure: 1. the traveling assembly, 2, a rack, 3, a hydraulic pump station, 4, a supporting plate, 5, a first oil cylinder, 6, a cantilever seat, 61, a push plate, 62, a movable bottom plate, 63, a supporting rotating shaft, 64, a guide rail, 65, a first lug seat, 66, a second lug seat, 7, a cantilever, 81, a second oil cylinder, 82, a third oil cylinder, 9, a cutter head, 91, a hob assembly, 92, a driving motor, 93, a speed reduction assembly, 94, a disc-shaped hob, 95 and a fixed block.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, the cantilever swing type hard rock roadway heading machine comprises a walking assembly 1, a frame 2, a translation assembly and a cutting assembly;
the frame 2 is arranged on the walking assembly 1, the translation assembly comprises a first oil cylinder 5 and a cantilever seat 6, one end of the first oil cylinder 5 is connected with a support plate 4 vertically arranged on the frame 2, and the other end drives the cantilever seat 6 to be arranged on the frame 2 in a sliding manner;
the cutting assembly comprises a cantilever 7, a cutter head 9 and a hob assembly 91, one end of the cantilever 7 is rotatably mounted on the cantilever base 6, the other end of the cantilever is fixedly connected with the cutter head 9, and a plurality of groups of hob assemblies 91 are uniformly fixed on the cutter head 9 through fixing blocks 95;
the cantilever seat 6 is provided with a driving component which drives the cantilever 7 to horizontally rotate 0-100 degrees towards two sides respectively by taking the sliding direction of the cantilever seat 6 as an axis;
further, the driving assembly comprises a second oil cylinder 81 and a third oil cylinder 82 which are staggered up and down and are correspondingly arranged on two sides of the cantilever 7, one end of the second oil cylinder 81 and one end of the third oil cylinder 82 are correspondingly and rotatably arranged on the first lug seat 65 and the second lug seat 66 on the cantilever seat 6, and the other end of the second oil cylinder 81 and the other end of the third oil cylinder are rotatably arranged on the cantilever 7;
as shown in fig. 3, further, the cantilever base 6 includes a moving base plate 62 arranged on the frame 2 and a push plate 61 vertically arranged on the moving base plate 62, one end of a second oil cylinder 81 and one end of a third oil cylinder 82 are rotatably arranged on the push plate 61, and the cantilever 7 is rotatably arranged through a vertical supporting rotating shaft 63;
further, a sliding groove is formed in the frame 2, and a guide rail 64 matched with the sliding groove is formed in the movable bottom plate 62;
further, the cantilever 7 is mounted on the cantilever base 6 through a slewing bearing;
furthermore, a lifting platform moving up and down is arranged between the slewing bearing and the cantilever base 6;
further, the cutter head 9 is of an inverted L-shaped structure, and the bent part of the cutter head is in arc transition;
as shown in fig. 2, further, each group of hob assemblies 91 includes a driving motor 92, a speed reducing assembly 93 and a disc-type hob 94, an output end of the driving motor 92 is connected with the disc-type hob 94 through the speed reducing assembly 93, and the disc-type hob 94 is located outside the hob 9;
when the cantilever swing type hard rock tunnel boring machine is used, firstly, the piston end of the first oil cylinder 5 is adjusted to an initial position (the position with the minimum expansion amount), so that the cantilever seat 6 is driven to move on the frame 2, and the walking assembly 1 integrally moves to a position where coal needs to be bored, such as a tunnel, a tunnel and the like;
the cantilever 7 is rotatably arranged on the cantilever seat 6 and is driven to rotate by the driving assembly, namely the second oil cylinder 81 and the third oil cylinder 82 are staggered up and down and are correspondingly arranged on two sides of the cantilever 7, so that the mutual interference of the second oil cylinder 81 and the third oil cylinder 82 is avoided when the cantilever 7 rotates, the rotation angle of the cantilever 7 is larger, and the adjustment of the rotation angle of 200 degrees is realized;
the telescopic amount of the piston ends of the second oil cylinder 81 and the third oil cylinder 82 is adjusted, so that the cantilever 7 rotates to-100 degrees (the sliding direction of the cantilever base 6 is set to be 0 degree along the axis, and the cantilever base horizontally rotates towards two sides respectively from-100 degrees to 100 degrees), the driving motor 92 is started to drive the corresponding disc-shaped hob 94 to carry out tunneling work, and the speed reduction and torque increase effects are realized through the speed reduction assembly 93, so that more effective and faster tunneling is realized;
when the disc cutter 94 rotates, the first oil cylinder 5 drives the cantilever seat 6 to move on the rack 2, so that the disc cutter 94 is in contact with the rock, the angle adjustment of the cantilever 7 is driven by the driving assembly, the disc cutter 94 cuts the arc of the rock, when the cantilever 7 rotates to 100 degrees, the forward stroke of cutting the rock is completed, the extension amount of the piston end of the first oil cylinder 5 is adjusted, namely, the cantilever seat 6 and the cantilever 7 are driven to move for a certain distance in total, so that the cutting feed amount is adjusted, then the second oil cylinder 81 and the third oil cylinder 82 are adjusted, so that the cantilever 7 rotates to drive the disc cutter 94 to cut the arc of the disc cutter to-100 degrees, and the reverse stroke of cutting the rock is completed.
When the piston end of the first oil cylinder 5 extends to the maximum length and cannot feed, the piston end of the first oil cylinder 5 returns to the initial position, the proper position is readjusted through the walking assembly 1, tunneling work is continued, and tunneling is directly completed.
In addition, the first oil cylinder 5, the second oil cylinder 81 and the third oil cylinder 82 provide hydraulic power uniformly through a hydraulic pump station 3 arranged on the frame 2; because the cutter head 9 is of an inverted L-shaped structure, the bent part is excessive in arc shape, and the hob assemblies 91 are uniformly arranged on the cutter head 9, on one hand, the upper layer of rock is effectively supplemented and tunneled through the inverted L-shaped structure, so that the damage of the upper layer of rock to the cutter head 9 and the falling of the upper layer of rock are avoided, and on the other hand, the cutter head 9 is effectively protected in stress during tunneling through the excessive arc shape of the bent part, so that the service life of the cutter head is longer; cantilever 7 passes through slewing bearing and installs on cantilever seat 6, not only satisfies cantilever 7's angle rotation on a large scale, bears cantilever 7 load moreover bigger, conveniently changes the dish type hobbing cutter 94 of equidimension not, is suitable for different environment to cantilever 7 accessible lift platform installs on cantilever seat 6, and lift platform drives the adjustment of cantilever 7 height from top to bottom, makes it bigger to the rock cutting scope, and the functionality is stronger.
Claims (8)
1. A cantilever swing type hard rock roadway heading machine is characterized by comprising a walking assembly (1), a frame (2), a translation assembly and a cutting assembly;
the frame (2) is installed on the walking assembly (1), the translation assembly comprises a first oil cylinder (5) and a cantilever seat (6), one end of the first oil cylinder (5) is connected with a supporting plate (4) vertically arranged on the frame (2), and the other end of the first oil cylinder drives the cantilever seat (6) to be arranged on the frame (2) in a sliding mode;
the cutting assembly comprises a cantilever (7), a cutter head (9) and hob assemblies (91), one end of the cantilever (7) is rotatably mounted on the cantilever base (6), the other end of the cantilever is fixedly connected with the cutter head (9), and the multiple groups of hob assemblies (91) are uniformly fixed on the cutter head (9) through fixing blocks (95);
the cantilever seat (6) is provided with a driving component which drives the cantilever (7) to horizontally rotate 0-100 degrees towards two sides respectively by taking the sliding direction of the cantilever seat (6) as an axis.
2. The cantilever swing type hard rock roadway heading machine according to claim 1, wherein the driving assembly comprises a second oil cylinder (81) and a third oil cylinder (82) which are staggered up and down and correspondingly arranged at two sides of the cantilever (7), one end of the second oil cylinder (81) and one end of the third oil cylinder (82) are correspondingly rotatably arranged on a first lug seat (65) and a second lug seat (66) on the cantilever seat (6), and the other end of the second oil cylinder (81) and the third oil cylinder are rotatably arranged on the cantilever (7).
3. The cantilever swing type hard rock roadway heading machine according to claim 2, wherein the cantilever base (6) comprises a movable bottom plate (62) arranged on the frame (2) and a push plate (61) vertically mounted on the movable bottom plate (62), one end of the second oil cylinder (81) and one end of the third oil cylinder (82) are rotatably mounted on the push plate (61), and the cantilever (7) is rotatably arranged through a vertical support rotating shaft (63).
4. The cantilever oscillating type hard rock tunnel boring machine according to claim 1 or 2, wherein each group of hob assemblies (91) comprises a drive motor (92), a speed reduction assembly (93) and a disc-shaped hob (94), the output end of the drive motor (92) is connected with the disc-shaped hob (94) through the speed reduction assembly (93), and the disc-shaped hob (94) is located outside the cutterhead (9).
5. The cantilever swing type hard rock tunnel boring machine according to claim 4, wherein the cutter head (9) is of an inverted L-shaped structure, and the bent part of the cutter head is in arc transition.
6. The cantilever swing type hard rock roadway heading machine according to claim 3, wherein the frame (2) is provided with a chute, and the movable bottom plate (62) is provided with a guide rail (64) matched with the chute.
7. A boom swing type hard rock tunnel boring machine according to claim 5, characterized in that the boom (7) is mounted on the boom base (6) by means of a slewing bearing.
8. The cantilever swinging type hard rock tunnel boring machine according to claim 7, wherein a lifting platform moving up and down is arranged between the slewing bearing and the cantilever base (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010885780.8A CN111878107A (en) | 2020-08-28 | 2020-08-28 | Cantilever swing type hard rock roadway heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010885780.8A CN111878107A (en) | 2020-08-28 | 2020-08-28 | Cantilever swing type hard rock roadway heading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111878107A true CN111878107A (en) | 2020-11-03 |
Family
ID=73198729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010885780.8A Pending CN111878107A (en) | 2020-08-28 | 2020-08-28 | Cantilever swing type hard rock roadway heading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111878107A (en) |
-
2020
- 2020-08-28 CN CN202010885780.8A patent/CN111878107A/en active Pending
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