CN113062749A - Hollow rotary annular rock tunnel boring machine - Google Patents
Hollow rotary annular rock tunnel boring machine Download PDFInfo
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- CN113062749A CN113062749A CN202110452878.9A CN202110452878A CN113062749A CN 113062749 A CN113062749 A CN 113062749A CN 202110452878 A CN202110452878 A CN 202110452878A CN 113062749 A CN113062749 A CN 113062749A
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- 239000011435 rock Substances 0.000 title claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 128
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims description 29
- 238000003825 pressing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000005641 tunneling Effects 0.000 abstract description 10
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000002893 slag Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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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
- E21D9/10—Making by using boring or cutting machines
- E21D9/1053—Making by using boring or cutting machines for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently, e.g. by blasting
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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
- E21D9/10—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)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a hollow rotary annular rock roadway heading machine, which comprises an annular body; the annular body comprises an annular fixed frame and a cutter head; the top surface of the cutter head is provided with a cutter assembly; a plurality of groups of power sets are regularly distributed between the cutter head and the fixed frame along the annular direction; the power group comprises a rotary power mechanism and an axial power mechanism; the rotary power mechanism is used for driving the cutter head to do rotary motion along the fixing frame; the axial power mechanism is used for driving the annular body to move forwards or backwards in the rock roadway; the cutterhead is used to form an annular drill groove in a rock roadway through the cutter assembly. The hollow rotary annular rock tunnel boring machine adopts the design mode of the annular cutter head and the fixed frame, the cutter head is arranged on the fixed frame and is driven by a plurality of groups of power units, and the power units can provide power for the rotation of the cutter head and power for the forward or backward movement of the whole machine, so that the hollow rotary annular rock tunnel boring machine can adapt to all-dimensional multi-angle tunnel boring; the structure is simple, the cost is low, meanwhile, the continuous operation can be realized, and the tunneling speed is high.
Description
Technical Field
The invention relates to the field of rock roadway tunneling equipment, in particular to a hollow rotary annular rock roadway tunneling machine.
Background
The existing rock tunnel boring machine mainly comprises a rock type shield machine and a raise boring machine, and the rock type shield machine and the raise boring machine are used for carrying out full-section damage on a working face mainly by rolling.
The rock shield machine integrally propels the cutter head and the machine body by means of external machinery, presses the cutter into rock by strong pressure, and rotates the cutter head by strong torque, so that rolling and cutting operations are implemented on a rock working face, rock damage of a large number of rolling and a small number of cutting modes on the rock working face belongs to a high-energy-consumption damage mode, particularly full-section tunneling, high power is required, mechanical strength is high, the machine body of the shield machine is huge, complete in function and high in manufacturing cost, and the shield machine is not suitable for construction in small-specification working faces with changeable underground construction positions of mines, and meanwhile projects such as patios and ground wells cannot be constructed.
When the raise boring machine is used for construction, the expanding bit is fixed on the drill rod, the drilling machine positioned at the upper part of the raise performs upward pulling force and torque, the drilling machine passively rotates by taking the central hole of the raise as a center and rolls and destroys rocks, and when the full-section rolls and destroys, the requirements on power and the strength of the machine tool are high. The bit of a raise boring machine also has a combination of crushing and other failures, but for the face, full face tunneling still occurs. The raise boring machine can only construct steep inclined raise and can not construct engineering such as drift, inclined shaft and ground shaft due to the traction mode of the boring machine from bottom to top.
Meanwhile, when the full-face tunneling machine is used for operation, the equipment acquisition cost is high, the construction power is high, the construction cost is high, and the tunneling speed is very slow.
Disclosure of Invention
In order to solve the technical problems, the invention provides a hollow rotary annular rock tunnel boring machine, which adopts the design mode of an annular cutter head and a fixed frame, wherein the cutter head is arranged on the fixed frame and is driven by a plurality of groups of power units, and the power units can provide power for the rotation of the cutter head and power for the forward or backward movement of the whole machine and can adapt to the omnibearing and multi-angle tunnel boring; the whole structure is simple, the cost is low, meanwhile, the continuous operation can be realized, and the tunneling speed is high.
The technical scheme adopted by the invention for solving the technical problems is as follows: a hollow rotary annular rock roadway heading machine comprises an annular body; the annular body comprises an annular fixed frame and an annular cutter head arranged on the fixed frame; the top surface of the cutter head is provided with a cutter assembly; a plurality of groups of power sets are regularly distributed between the cutter head and the fixed frame along the annular direction; the power unit comprises a rotary power mechanism and an axial power mechanism; the rotary power mechanism is used for driving the cutter head to do rotary motion along the fixing frame; the axial power mechanism is used for driving the annular body to move forwards or backwards in the rock roadway; the cutter head is used for forming an annular drilling groove in the rock roadway through the cutter assembly.
Furthermore, the rotary power mechanism comprises a rack fixed on the cutter head, a gear arranged on the fixed frame and matched with the rack, and a first driving mechanism for driving the gear; the first driving mechanism is used for driving the gear to rotate and driving the rack to enable the cutter head to rotate and move along the fixing frame.
Further, the axial power mechanism is one or a combination of two of a wheel type axial moving mechanism and a stepping type axial moving mechanism.
Further, the wheel type axial moving mechanism comprises a moving wheel and a moving wheel driving mechanism; the wheel surface of the moving wheel is in contact with the side wall of the annular drilling groove; and the moving wheel driving mechanism is used for driving the moving wheel to drive the annular body to move forwards or backwards in the depth direction of the annular drilling groove.
Furthermore, the moving wheel driving mechanism is in transmission connection with the moving wheel through a worm gear; the wheel type axial moving mechanism also comprises a pressing mechanism; the pressing mechanism is used for providing pressure with the annular drilling groove for the moving wheel.
Further, the stepping type axial moving mechanism comprises a radial supporting mechanism and an axial driving mechanism; the axial driving mechanism is arranged on the fixed frame and used for driving the radial supporting mechanism to move forwards or backwards along the depth direction of the annular drilling groove; the radial support mechanism comprises a support end and a support driving mechanism; the two support ends are respectively matched with the outer diameter inner wall and the inner diameter inner wall of the annular drill groove correspondingly, and the support driving mechanism is used for driving the two support ends to be tightly supported or separated between the outer diameter inner wall and the inner diameter inner wall of the annular drill groove.
Furthermore, the supporting end is a supporting plate matched with the inner wall of the outer diameter and the inner wall of the inner diameter of the annular drilling groove, supporting rods consistent with the radial direction of the fixing frame are further fixed on the supporting end, and the supporting driving mechanism is arranged between the two supporting rods; the two axial driving mechanisms are arranged, and the driving ends of the two axial driving mechanisms are respectively connected with the corresponding supporting rods.
Furthermore, a first supporting bearing is also arranged between the cutter head and the fixed frame; the cutter head is assembled with the fixing frame through a first supporting bearing, and the first supporting bearing is used for reducing friction between the cutter head and the fixing frame during rotation and is also used for axial limiting and radial limiting of the cutter head and the fixing frame.
Furthermore, an annular slide rail and an annular slide block are arranged between the cutter head and the fixed frame; the annular sliding rail and the annular sliding block are respectively arranged on the cutter head and the fixed frame, and the cutter head is assembled with the fixed frame through the annular sliding rail and the annular sliding block; the annular slide rail and the annular slide block are used for providing guidance for the rotation of the cutter head on the fixed frame and are also used for axial limiting of the cutter head and the fixed frame; and a radial limiting wheel is further arranged between the cutter head and the fixing frame and used for radial limiting of the cutter head and the fixing frame.
Further, the cutter head comprises an outer ring cutter head and an inner ring cutter head; racks are respectively arranged on the inner side wall of the outer ring cutter head and the outer side wall of the inner ring cutter head; the two racks are meshed with the same gear; the gear is used for driving the outer ring cutter head and the inner ring cutter head to rotate in opposite directions when the gear rotates; a second support bearing is also arranged between the outer ring cutter head and the inner ring cutter head; the outer ring cutter head is assembled with the inner ring cutter head through a second supporting bearing.
The invention has the advantages that: the hollow rotary annular rock tunnel boring machine adopts the design mode of the annular cutter head and the fixed frame, the cutter head is arranged on the fixed frame and is driven by a plurality of groups of power units, and the power units can provide power for the rotation of the cutter head and power for the forward or backward movement of the whole machine, so that the hollow rotary annular rock tunnel boring machine can adapt to all-dimensional multi-angle tunnel boring; the whole structure is simple, the cost is low, meanwhile, the continuous operation can be realized, and the tunneling speed is high.
Drawings
Fig. 1 is a schematic view of a hollow rotary annular rock tunnel boring machine according to a first embodiment;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic cross-sectional view of C-C of FIG. 1;
FIG. 5 is a schematic cross-sectional view taken along line D-D of FIG. 1;
FIG. 6 is a schematic illustration of the hollow rotary annular rock tunnel boring machine of the first embodiment drilling into a tunnel;
FIG. 7 is a schematic view of a hollow rotary annular rock tunnel boring machine according to the second embodiment;
fig. 8 is a schematic view of a hollow rotary annular rock tunnel boring machine according to the third embodiment;
FIG. 9 is a schematic view of a hollow rotary annular rock tunnel boring machine according to the fourth embodiment;
fig. 10 is an internal schematic view of a rotary power mechanism of the hollow rotary annular rock tunnel boring machine according to the fifth embodiment;
fig. 11 is an internal schematic view of a rotary power mechanism of the hollow rotary annular rock tunnel boring machine according to the sixth embodiment;
fig. 12 is an internal schematic view of a rotary power mechanism of the hollow rotary annular rock tunnel boring machine of the seventh embodiment;
fig. 13 is an internal schematic view of a rotary power mechanism of the hollow rotary annular rock tunnel boring machine according to the eighth embodiment.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
Example one
As shown in fig. 1 to 6, the present embodiment provides a hollow rotary annular rock tunnel boring machine including an annular body 1; the annular body 1 comprises an annular fixed frame 11 and an annular cutter head 12 arranged on the fixed frame 11; the cutter assembly 2 is arranged on the top surface of the cutter head 12; a plurality of groups of power groups 3 are regularly distributed between the cutter head 12 and the fixed frame 11 along the annular direction; the power group 3 comprises a rotary power mechanism 4 and an axial power mechanism; the rotary power mechanism 4 is used for driving the cutter head 12 to do rotary motion along the fixed frame 11; the axial power mechanism is used for driving the annular body 1 to move forwards or backwards in the rock roadway; the cutter head 12 is used for forming an annular drilling groove 7 in the rock roadway through the cutter assembly 2; in this embodiment, the annular body 1 employs four power groups, and each power group employs two symmetrically distributed rotation power mechanisms.
Referring to fig. 2 again, in the hollow rotary annular rock tunnel boring machine of the present embodiment, the rotary power mechanism 4 includes a rack 41 fixed to the cutter head 12, a gear 42 mounted on the fixed frame 11 and engaged with the rack 41, and a first driving mechanism 43 for driving the gear 42; the first driving mechanism 43 is used for driving the gear 42 to rotate and driving the rack 41, so that the cutter head 12 rotates and moves along the fixed frame. The embodiment adopts a first form of rotation power mechanism, which specifically comprises: the rack is arranged to be annular (coaxial) corresponding to the cutter head 12, one ring surface of the annular rack is fixed with the cutter head 12, teeth with length directions consistent with the radial direction of the cutter head are distributed on the other ring surface, and the axial direction of the gear is consistent with the radial direction of the cutter head and is meshed with the rack.
Referring to fig. 2 again, in the hollow rotary annular rock roadway heading machine of the present embodiment, the width of the cutter head 12 is greater than that of the fixed frame 11, and the position of the cutter head exposed out of the fixed frame 11 is provided with a slag discharge port 13; for discharging rock slag produced during drilling.
Referring to fig. 1 again, in the hollow rotary annular rock tunnel boring machine of the present embodiment, the axial power mechanisms are a wheel type axial moving mechanism 5 and a stepping type axial moving mechanism 6; in this embodiment, each power group employs two symmetrically distributed wheel-type axial moving mechanisms 5 and two symmetrically distributed step-type axial moving mechanisms 6.
Referring to fig. 3 again, in the hollow rotary annular rock tunnel boring machine of the present embodiment, the wheel type axial moving mechanism includes a moving wheel 51 and a moving wheel driving mechanism 52; the wheel surface of the moving wheel 51 is in contact with the side wall of the annular drilling groove 7; the moving wheel driving mechanism 52 is used for driving the moving wheel 51 to drive the annular body 1 to move forwards or backwards in the depth direction of the annular drilling slot 7; wherein, remove wheel 51 and can be conventional wheel that is used for walking, also can include the crawler-type walking wheel, when selecting the crawler-type walking wheel, the track contacts with annular drill way 7.
In the hollow rotary annular rock tunnel boring machine of the embodiment, the moving wheel driving mechanism 52 is in transmission connection with the moving wheel 51 through a worm gear 53; the wheel type axial moving mechanism further comprises a pressing mechanism 54; the hold-down mechanism 54 is used to provide pressure to the moving wheel against the annular drill groove 7.
Referring to fig. 4 again, in the hollow rotary annular rock tunnel boring machine of the present embodiment, the step-by-step axial moving mechanism 6 includes a radial support mechanism and an axial drive mechanism 64; the axial driving mechanism 64 is arranged on the fixed frame 11 and is used for driving the radial supporting mechanism to move forward or backward along the depth direction of the annular drilling groove 7; the radial support mechanism comprises a support end 62 and a support driving mechanism 63; the two support ends 62 are correspondingly matched with the inner wall of the outer diameter and the inner wall of the inner diameter of the annular drill groove 7 respectively, and the support driving mechanism 63 is used for driving the two support ends 62 to be tightly supported or separated between the inner wall of the outer diameter and the inner wall of the inner diameter of the annular drill groove 7; the supporting end 62 is a supporting plate matched with the inner wall of the outer diameter and the inner wall of the inner diameter of the annular drill groove 7, the supporting rod 61 which is consistent with the radial direction of the fixing frame is also fixed on the supporting end 62, and the supporting driving mechanism 63 is arranged between the two supporting rods 61; the number of the axial driving mechanisms 64 is two, and the driving ends of the two axial driving mechanisms 64 are respectively connected with the corresponding supporting rods 61; the fixing frame 11 is provided with an avoiding groove 65 at a position corresponding to the support rod 61, and the avoiding groove is used for providing avoidance for the relative movement between the fixing frame 11 and the radial support mechanism.
Referring to fig. 2 to 5 again, in the hollow rotary annular rock tunnel boring machine of the present embodiment, a first support bearing 44 is further installed between the cutter head 12 and the fixed frame 11; the cutter head 12 is assembled with the fixing frame 11 through a first supporting bearing 44, and the first supporting bearing 44 is used for reducing the friction force between the cutter head 12 and the fixing frame 11 during rotation and is also used for axial limiting and radial limiting of the cutter head 12 and the fixing frame 11.
When the hollow rotary annular rock tunnel boring machine is used, a rotary power mechanism (a rotary motor or a hydraulic motor and the like can be adopted) drives a gear, a cutter head is driven to rotate by means of meshing of the gear and a rack, and the cutter head drills through a cutter assembly fixed on the cutter head.
In the hollow rotary annular rock tunnel boring machine of the embodiment, the rotary power mechanisms in the four power groups can be driven together or used independently, and can be selected according to actual rotary resistance.
In the hollow rotary annular rock roadway heading machine of the embodiment, the annular body is axially moved by the axial power mechanism while the cutter head rotates, specifically, the wheel type axial moving mechanism and the stepping type axial moving mechanism are combined for use in the embodiment, in the actual process, the moving wheel is driven to rotate by the moving wheel driving mechanism (a rotary motor or a hydraulic motor and the like can be adopted), the annular body is made to advance along the depth direction of the annular drill groove by utilizing the friction force between the wheel surface of the moving wheel and the side wall of the annular drill groove, of course, in order to improve the friction force between the wheel surface and the side wall of the annular drill groove, a pressing mechanism (a hydraulic push rod, an electric push rod and the like can be adopted to press the wheel shaft of the moving wheel, in the synchronous stepping type axial moving mechanism, two supporting ends are driven to be supported between the outer diameter inner wall and the inner diameter inner wall of the annular drill groove 7 by the supporting driving mechanism, pushing is carried out through an axial driving mechanism 64 (a hydraulic push rod, an electric push rod and the like can be adopted), and the fixed frame applies drilling thrust to the cutter head under the pushing action of the driving wheel and the axial driving mechanism; in the retraction process, only the wheel type axial power mechanism is needed, and the supporting end of the stepping type axial moving mechanism is separated from the annular drilling groove 7.
In the hollow rotary annular rock tunnel boring machine of the embodiment, because four groups of power groups are arranged, 8 stepping axial moving mechanisms are included, in the drilling process, a 4+4 action mode can be adopted, namely, radial supporting mechanisms of 4 stepping axial moving mechanisms which are approximately uniformly distributed in the circumferential direction are tightly supported, the other 4 stepping axial moving mechanisms are separated from the radial supporting mechanisms, the axial driving mechanisms in the 4 tightly supported stepping axial moving mechanisms push the fixed frame forwards until the 4 stepping axial moving mechanisms are positioned at the rear limit position of the fixed frame, and the radial supporting mechanisms of the 4 separated stepping axial moving mechanisms are tightly supported when moving to the limit position in the advancing direction; then, the 4 stepping axial moving mechanisms positioned at the rear limit position are separated, and the operations are repeated, so that the continuous forward drilling of the annular body 1 is realized.
In the hollow rotary annular rock roadway heading machine of the embodiment, because four groups of power sets are arranged, a plurality of groups of power sets can be matched for use, for example, when the drilling angle needs to be adjusted, part of the power sets can be pushed, and the drilling direction of the annular body can be deflected according to the required angle.
As shown in fig. 6, in the hollow rotary annular rock tunnel boring machine of the present embodiment, during drilling, the annular drill groove 7 is formed, and the rock column 8 at the center of the annular drill groove can be processed by other mechanical devices, and since the periphery of the rock column 8 is all free surfaces, the rock column 8 is easier to be bored.
Example two
As shown in fig. 7, the present embodiment provides a hollow rotary annular rock tunnel boring machine, which is different from the first embodiment in that: only the wheel type axial moving mechanism is adopted in the power group 3.
In this embodiment, four groups of power sets are also used, and the specific operation process of using the wheel-type axial moving mechanism is already described in the first embodiment, and is not described herein again.
EXAMPLE III
As shown in fig. 8, the present embodiment provides a hollow rotary annular rock tunnel boring machine, which is different from the first embodiment in that: only a step-by-step axial movement mechanism is employed in the power pack 3.
In the embodiment, four groups of power groups are also adopted, wherein each group of power groups adopts 4 stepping axial moving mechanisms which are distributed in a pairwise symmetrical manner; the specific operation process of the step-by-step axial moving mechanism is already described in the first embodiment, and is not described herein again.
Example four
As shown in fig. 9, the present embodiment provides a hollow rotary annular rock tunnel boring machine, which is different from the third embodiment in that: only three power groups 3 are used in the power group 3.
In this embodiment, three power groups are used, which is similar to the action of four power groups.
EXAMPLE five
As shown in fig. 10, the present embodiment provides a second form of rotary power mechanism for a hollow rotary annular rock tunnel boring machine, which specifically comprises: the rack is annular, the outer diameter side of the rack is fixed with the outer wall of the inner diameter side of the cutter head correspondingly, teeth with the length direction consistent with the axial direction of the cutter head are distributed on the inner diameter side of the rack in the circumferential direction, and the axial direction of the gear is consistent with the axial direction of the cutter head and is meshed with the rack; meanwhile, an annular slide rail 45 and an annular slide block 46 are arranged between the outer wall of the outer diameter side of the cutter head and the inner wall of the outer diameter side of the fixed seat; the annular slide rail 45 and the annular slide block 46 are respectively arranged on the fixed frame 11 and the cutter head 12, and the cutter head 12 is assembled with the fixed frame 11 through the annular slide rail 45 and the annular slide block 46; a radial limiting wheel 47 is arranged between the outer wall of the outer diameter side of the cutter head and the inner wall of the outer diameter side of the fixed seat and is used for radially limiting the cutter head 12 and the fixed frame 11; of course, according to the design idea of this embodiment, the slide rail and slide block structure can be disposed on the inner diameter side of the cutter head, and the rack and the gear are disposed on the outer diameter side of the cutter head.
EXAMPLE six
As shown in fig. 11, the present embodiment provides a third form of rotary power mechanism for a hollow rotary annular rock tunnel boring machine, which is different from the first embodiment in that a first support bearing is not used, but a slide rail and slider structure as in the fifth embodiment is used, specifically: the ring surface of the cutter head close to the fixing frame is provided with a rack, the length direction of teeth on the rack is consistent with the radial direction of the cutter head, and the sliding rail and the sliding block structure are respectively arranged between the outer diameter outer side surface of the cutter head and the outer diameter inner side surface of the fixing frame, between the inner diameter outer side surface of the cutter head and the inner diameter inner side surface of the fixing frame, and are respectively and correspondingly provided with a radial limiting wheel 47.
EXAMPLE seven
As shown in fig. 12, the embodiment provides a design that the cutter head reversely rotates in the hollow rotary annular rock tunnel boring machine, which specifically comprises: the cutter disc 12 comprises an outer ring cutter disc 121 and an inner ring cutter disc 122; racks 41 are respectively arranged on the inner side wall of the outer ring cutter head 121 and the outer side wall of the inner ring cutter head 122; the two racks 41 are meshed with the same gear 42; the gear 42 is used for driving the outer ring cutter disc 121 and the inner ring cutter disc 122 to rotate in opposite directions when rotating; a second support bearing 123 is further arranged between the outer ring cutter head 121 and the inner ring cutter head 122; the outer ring cutter disc 121 is assembled with the inner ring cutter disc 122 through a second support bearing 123.
Example eight
As shown in fig. 13, the present embodiment provides a state in which the hollow rotary annular rock tunnel boring machine is constructed in a ground well, and in the present embodiment, a slag discharge port 13 is provided at a position on the outer diameter side of the cutter head 12, and a slurry collecting device 14 for discharging slurry generated during drilling is provided at the position of the slag discharge port.
The hollow rotary annular rock tunnel boring machine of the embodiment adopts the design mode of the annular cutter head and the fixed frame, the cutter head is arranged on the fixed frame and is driven by a plurality of groups of power units, and the power units can provide power for the rotation of the cutter head and power for the forward or backward movement of the whole machine, so that the hollow rotary annular rock tunnel boring machine can adapt to the drilling of tunnels in all directions and at multiple angles; the whole structure is simple, the cost is low, meanwhile, the continuous operation can be realized, and the tunneling speed is high.
The above embodiments should not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent transformations fall within the protection scope of the present invention.
Claims (10)
1. Hollow gyration annular rock tunnel boring machine, its characterized in that: comprises an annular body; the annular body comprises an annular fixed frame and an annular cutter head arranged on the fixed frame; the top surface of the cutter head is provided with a cutter assembly; a plurality of groups of power sets are regularly distributed between the cutter head and the fixed frame along the annular direction; the power unit comprises a rotary power mechanism and an axial power mechanism; the rotary power mechanism is used for driving the cutter head to do rotary motion along the fixing frame; the axial power mechanism is used for driving the annular body to move forwards or backwards in the rock roadway; the cutter head is used for forming an annular drilling groove in the rock roadway through the cutter assembly.
2. The hollow rotary annular rock roadway boring machine of claim 1, wherein: the rotary power mechanism comprises a rack fixed on the cutter head, a gear arranged on the fixed frame and matched with the rack, and a first driving mechanism for driving the gear; the first driving mechanism is used for driving the gear to rotate and driving the rack to enable the cutter head to rotate and move along the fixing frame.
3. A hollow rotary annular rock tunnel boring machine according to claim 1 or 2, wherein: the axial power mechanism is one or a combination of two of a wheel type axial moving mechanism and a stepping type axial moving mechanism.
4. A hollow rotary annular rock tunnel boring machine according to claim 3, wherein: the wheel type axial moving mechanism comprises a moving wheel and a moving wheel driving mechanism; the wheel surface of the moving wheel is in contact with the side wall of the annular drilling groove; and the moving wheel driving mechanism is used for driving the moving wheel to drive the annular body to move forwards or backwards in the depth direction of the annular drilling groove.
5. The hollow rotary annular rock roadway boring machine of claim 4, wherein: the moving wheel driving mechanism is in transmission connection with the moving wheel through a worm gear; the wheel type axial moving mechanism also comprises a pressing mechanism; the pressing mechanism is used for providing pressure with the annular drilling groove for the moving wheel.
6. A hollow rotary annular rock tunnel boring machine according to claim 3, wherein: the stepping axial moving mechanism comprises a radial supporting mechanism and an axial driving mechanism; the axial driving mechanism is arranged on the fixed frame and used for driving the radial supporting mechanism to move forwards or backwards along the depth direction of the annular drilling groove; the radial support mechanism comprises a support end and a support driving mechanism; the two support ends are respectively matched with the outer diameter inner wall and the inner diameter inner wall of the annular drill groove correspondingly, and the support driving mechanism is used for driving the two support ends to be tightly supported or separated between the outer diameter inner wall and the inner diameter inner wall of the annular drill groove.
7. The hollow rotary annular rock tunnel boring machine according to claim 6, wherein: the supporting end is a supporting plate matched with the inner wall of the outer diameter and the inner wall of the inner diameter of the annular drilling groove, supporting rods consistent with the radial direction of the fixing frame are further fixed on the supporting end, and the supporting driving mechanism is arranged between the two supporting rods; the two axial driving mechanisms are arranged, and the driving ends of the two axial driving mechanisms are respectively connected with the corresponding supporting rods.
8. The hollow rotary annular rock roadway boring machine of claim 1, wherein: a first supporting bearing is further arranged between the cutter head and the fixed frame; the cutter head is assembled with the fixing frame through a first supporting bearing, and the first supporting bearing is used for reducing friction between the cutter head and the fixing frame during rotation and is also used for axial limiting and radial limiting of the cutter head and the fixing frame.
9. The hollow rotary annular rock roadway boring machine of claim 1, wherein: an annular slide rail and an annular slide block are arranged between the cutter head and the fixed frame; the annular sliding rail and the annular sliding block are respectively arranged on the cutter head and the fixed frame, and the cutter head is assembled with the fixed frame through the annular sliding rail and the annular sliding block; the annular slide rail and the annular slide block are used for providing guidance for the rotation of the cutter head on the fixed frame and are also used for axial limiting of the cutter head and the fixed frame; and a radial limiting wheel is further arranged between the cutter head and the fixing frame and used for radial limiting of the cutter head and the fixing frame.
10. A hollow rotary annular rock tunnel boring machine according to claim 8 or 9, wherein: the cutter head comprises an outer ring cutter head and an inner ring cutter head; racks are respectively arranged on the inner side wall of the outer ring cutter head and the outer side wall of the inner ring cutter head; the two racks are meshed with the same gear; the gear is used for driving the outer ring cutter head and the inner ring cutter head to rotate in opposite directions when the gear rotates; a second support bearing is also arranged between the outer ring cutter head and the inner ring cutter head; the outer ring cutter head is assembled with the inner ring cutter head through a second supporting bearing.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033415A (en) * | 2021-11-12 | 2022-02-11 | 济南华世起科技有限公司 | Circular cutting type tunneling equipment |
| WO2022227787A1 (en) * | 2021-04-26 | 2022-11-03 | 孟小玲 | Hollow rotary rock tunnel boring machine |
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2021
- 2021-04-26 CN CN202110452878.9A patent/CN113062749A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227787A1 (en) * | 2021-04-26 | 2022-11-03 | 孟小玲 | Hollow rotary rock tunnel boring machine |
| CN114033415A (en) * | 2021-11-12 | 2022-02-11 | 济南华世起科技有限公司 | Circular cutting type tunneling equipment |
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Effective date of registration: 20211126 Address after: Room 1046, building 2, East Ring Road, Yanqing Park, Zhongguancun, Yanqing District, Beijing 102100 Applicant after: Golden ring excavation (Beijing) Technology Co.,Ltd. Address before: 064200 6-1-202, Xinyuan community, Zunhua City, Tangshan City, Hebei Province Applicant before: Deng Yipo |
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