CN113979023A - Muck conveying device and method for TBM small-radius turning - Google Patents
Muck conveying device and method for TBM small-radius turning Download PDFInfo
- Publication number
- CN113979023A CN113979023A CN202111267498.4A CN202111267498A CN113979023A CN 113979023 A CN113979023 A CN 113979023A CN 202111267498 A CN202111267498 A CN 202111267498A CN 113979023 A CN113979023 A CN 113979023A
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- Prior art keywords
- belt
- guide rail
- pulley
- muck
- tbm
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Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002893 slag Substances 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000005641 tunneling Effects 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 238000003860 storage Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 208000022971 Tuberculous meningitis Diseases 0.000 claims 9
- 208000001223 meningeal tuberculosis Diseases 0.000 claims 9
- 239000002689 soil Substances 0.000 abstract 1
- 238000003825 pressing Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
- B65G21/22—Rails or the like engaging sliding elements or rollers attached to load-carriers or traction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/02—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration for conveying in a circular arc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
The invention discloses a muck conveying device and a muck conveying method for TBM small-radius turning, wherein the device mainly comprises a guide rail frame, at least one driving mechanism, a pulley and a conveying belt; the guide rail frame is provided with a guide rail, and the guide rail comprises a slag receiving section, a straight section, a turning section and a slag discharging section; the pulley runs on the guide rail through a pulley wheel pair, and a friction plate, a friction wheel and a pinch roller are arranged on the pulley; two sides of the conveying belt are connected with the pulley through bolts and clamping plates; the driving mechanism comprises a power source, a reduction gearbox and a driving chain wheel, an input shaft of the driving chain wheel is connected with an output shaft of the reduction gearbox, the reduction gearbox is powered by the power source, and the driving chain wheel drives the friction wheel and the pinch roller to act on the friction plate so as to drive the pulley to move. The method using the device thoroughly solves the problem of belt deviation in the turning process, improves the tunneling efficiency, and can carry out the residue soil conveying work of small-radius turning.
Description
Technical Field
The invention relates to the technical field of TBM equipment, in particular to a muck conveying device and method for TBM small-radius turning.
Background
In rock stratum tunnel tunneling engineering, TBM tunneling machines are increasingly applied due to high mechanization degree, high tunneling speed, good forming quality and less stratum disturbance. A TBM tunnel boring machine is a novel and advanced tunnel construction machine which mainly uses a rotary cutter to excavate, simultaneously breaks surrounding rocks in a tunnel and bores to form the whole tunnel section; compared with a common underground construction tool method, the TBM integrates drilling, tunneling and supporting, and guides and monitors all operations by using high and new technologies such as electronics, information, remote measurement, remote control and the like, so that the tunneling process is always in the best state, and the TBM is widely applied to projects such as water conservancy and hydropower, mining, traffic, municipal administration, national defense and the like.
In the tunneling process of the TBM, the excavated muck is transported out of a tunnel by a belt conveyor, the turning of the existing belt conveyor is realized by means of the measures of arranging an ultrahigh vertical carrier roller at the inner side of the turning, forcibly guiding the vertical carrier roller at the side, additionally arranging a counter-pressure roller at the position of a return belt and the like, but the mode easily increases the transverse friction force of the belt, causes the fatigue loss of the belt and reduces the service life of the belt, the maintenance work of the roller is large, the belt is easy to deviate, the muck needs to be transported under the condition that the tunneling machine stops working, the tunneling efficiency is low, and the muck can not be transported when the turning radius is less than or equal to 50 m.
Disclosure of Invention
The invention aims to provide a muck conveying device and a muck conveying method for TBM small-radius turning, and aims to solve the technical problems that the existing heading machine cannot adapt to muck conveying of turning of a tunnel with a very small radius, and a conveying belt is easy to deviate during turning.
In order to solve the technical problems, the invention adopts the following technical scheme:
the design is a muck conveying device for TBM small-radius turning, which mainly comprises a guide rail frame, at least one driving mechanism, a tackle and a conveying belt, wherein a guide rail is arranged on the guide rail frame, the guide rail comprises a slag receiving section, a straight line section, a turning section and a slag discharging section, the tackle walks on the guide rail through a trolley wheel pair, a friction plate, a friction wheel and a pressing wheel are arranged on the tackle, two sides of the conveying belt are connected with the tackle through bolts and clamping plates, the driving device comprises a power source, a reduction gearbox and a driving chain wheel, an input shaft of the driving chain wheel is connected with an output shaft of the reduction gearbox, the reduction gearbox is powered by the power source, and the driving chain wheel drives the friction wheel and the pressing wheel to act on the friction plate so as to drive the tackle to move.
Preferably, the upper part of the slag receiving section is provided with a slag baffle for preventing muck from being lost, and the lower part of the slag discharging section is provided with a slag scraping plate for cleaning the conveying belt.
Preferably, the conveying belt is a rubber conveying belt.
Preferably, the trolley wheel pair comprises two treads, an end cover fixed by bolts is arranged above each tread, a bearing is arranged on the inner side of each tread, a sealing gasket is arranged below the bearing, and a wheel rim is arranged on the side of each tread.
Preferably, the power source adopts a variable-frequency speed-regulating driving motor, the electric control system adopts a field bus mode to transmit signals, and the driving motor and the reduction gearbox are symmetrically distributed on the guide rail.
Preferably, the slag receiving section is provided with a belt storage bin and a tensioning mechanism.
Preferably, the belt storage bin comprises a direction-changing roller, a guide roller and a belt storage frame, and a device for coiling and jacking the pulley is arranged on the side of the direction-changing roller.
Designing a muck conveying method based on the muck conveying device for TBM small-radius turning, comprising the following steps:
(1) turning on the power source of the device, wherein the driving mechanism drives the conveying belt to enable the device to be in a running state;
(2) the muck conveying work is continuously carried out along with the tunneling work of the TBM, the synchronous extension of the guide rail is required after each tunneling distance, and the belt storage bin and the tensioning mechanism are adjusted at the same time;
(3) and when the allowance of the belt storage bin is less than or equal to 30m, replacing the temporary belt winding and unwinding device with the belt, vulcanizing the belt, then loading the whole belt into the belt storage bin by using the pulley, and performing secondary tensioning by using the tensioning mechanism.
Preferably, in the step (2), the distance is less than or equal to 3000 mm.
Preferably, in the step (2), the design length of the guide rail is less than or equal to the net distance of the pulleys.
Compared with the prior art, the invention has the main beneficial technical effects that:
1. the invention thoroughly solves the problem of belt deviation in the turning process by arranging the pulleys on the two sides of the conveying belt to fix the conveying belt, thereby improving the tunneling efficiency.
2. The invention does not need to arrange a large number of belt carrier rollers, carrier roller brackets, head and tail end guide rollers and other parts, thereby reducing the maintenance work in the later period, and can carry out the muck conveying work during the turning with small radius by synchronously extending the guide rails and the pulleys.
Drawings
Fig. 1 is a schematic view of a guide rail according to an embodiment of the present invention.
FIG. 2 is a schematic structural diagram of a straight line segment according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a turning section according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a pulley structure according to an embodiment of the present invention.
FIG. 5 is a schematic view of a sheave pair according to an embodiment of the present invention.
FIG. 6 is a schematic view of a driving mechanism according to an embodiment of the present invention.
In the above figures, 1 is a guide rail frame, 10 is a guide rail, 11 is a slag receiving section, 12 is a straight line section, 13 is a turning section, 14 is a slag discharging section, 22 is a clamping plate, 3 is a conveying belt, 4 is a pulley, 42 is a pressing wheel, 43 is a friction plate, 44 is a friction wheel, 41 is a pulley wheel pair, 411 is a tread, 412 is a bearing, 413 is an end cover, 414 is a flange, 415 is a sealing gasket, 5 is a reduction gearbox, 6 is a driving motor, and 7 is a driving sprocket.
Detailed Description
The following examples are intended to illustrate the present invention in detail and should not be construed as limiting the scope of the present invention in any way.
In the description of the technical solutions of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention. Reference herein to "first," "second," etc., is used to distinguish between similar items and not to limit the particular order or sequence.
The cell structures in the following examples are all conventional commercially available products unless otherwise specified.
Example 1: a muck conveying device for TBM small-radius turning mainly comprises a guide rail frame 1, a driving mechanism, a pulley 4 and a conveying belt 3, wherein a guide rail 10 is arranged on the guide rail frame 1, and the guide rail 10 is properly extended to meet the requirement of transportation; the guide rail 10 comprises a slag receiving section 11, a straight line section 12, a turning section 13 and a slag discharging section 14, wherein a slag blocking plate is arranged at the upper part of the slag receiving section 11 and used for preventing muck from being lost, a slag scraping plate is arranged at the lower part of the slag discharging section 14 and used for cleaning the conveying belt 3, the conveying belt 3 is a rubber conveying belt, and two sides of the conveying belt 3 are connected with the pulley 4 through bolts and clamping plates 22; the trolley 4 runs on the guide rail 10 through a trolley wheel pair 41, the trolley wheel pair 41 comprises two tread surfaces 411, an end cover 413 fixed by bolts is arranged above each tread surface 411, a bearing 412 is arranged on the inner side of each tread surface 411, a sealing gasket 415 is arranged below each bearing 412, and a flange 414 is arranged below each tread surface 411; the tackle 4 is provided with a friction plate 442, a friction wheel 44 and a pinch roller 42, the driving mechanism comprises a driving motor 6, a reduction gearbox 5 and a driving chain wheel 7, the driving motor 6 adopts frequency conversion speed regulation and utilizes the bus control of the heading machine, the driving motor 7 and the reduction gearbox 5 are symmetrically distributed on the guide rail 10, an input shaft of the driving chain wheel 7 is connected with an output shaft of the reduction gearbox 5, the reduction gearbox 5 is powered by the driving motor 6, the driving chain wheel 7 drives the friction wheel 44 and the pinch roller 42 to act on the friction plate 43 so as to drive the tackle 4 to move, the driving mechanism is arranged at the slag receiving section 11 of the guide rail 10, the same driving mechanism can be added in a certain distance on the guide rail 10, the relay conveying is realized by a constant driving force mode, and the effective distribution of the driving force of long-distance conveying is solved, the rubber conveying belt 3 is flexibly connected, so that the driving mechanisms are in a mode of asynchronous rotating speed; the slag receiving section is further provided with a belt storage bin and a tensioning mechanism, the belt storage bin comprises a direction-changing roller, a guide roller and a belt storage frame, and a device for coiling and jacking the pulley is arranged on the side portion of the direction-changing roller.
The muck conveying method based on the muck conveying device for TBM small-radius turning comprises the following steps
(1) The driving motor 6 is turned on to provide power for the reduction gearbox 5, an output shaft of the reduction gearbox 5 drives the driving chain wheel 7 to rotate, the driving chain wheel 7 drives a friction wheel 44 and a pressing wheel 42 on the pulley 5 to jointly act on a friction plate 43 so as to drive the pulley 4 to move, and because two sides of the rubber conveying belt 3 are connected to the pulley 4 through the pressing plate 22 and the bolts, the pulley 4 bears the vertical gravity and the horizontal traction of the rubber conveying belt 3, so that the abrasion of the rubber conveying belt 3 is reduced;
(2) the muck conveying work is continuously carried out along with the TBM tunneling work, the synchronous extension of the guide rail 10 is required after the tunneling work is not more than 3000mm, the design length of the guide rail is not more than the net distance of the pulleys, so that the guide rail is conveniently loaded from the clearance of the pulleys, the entering side guide rail is provided with a wheel pair guide device to avoid collision or wheel clamping, the belt storage bin and the tensioning mechanism are adjusted at the same time, the extension of the guide rail is fixed through a clamping plate and a bolt, and the integral top of the guide rail is fixed on a guide rail frame through a flange;
(3) the belt storage capacity of the belt storage bin is 500m, the belt storage rack main factory is 65m, when the allowance of the belt storage bin is less than or equal to 30m, the temporary belt winding and unwinding device with the belt threaded is replaced, the belt is vulcanized, the whole roll of belt is loaded into the belt storage bin by the pulley after vulcanization, and secondary tensioning is carried out by the tensioning mechanism.
(4) The rubber conveyer belt 3 is gradually folded after being turned by the guide rail, is wrapped to adapt to small-radius turning, prevents the muck from falling off in the conveying process, and is unloaded by the scraper and cleaned by the rubber conveyer belt 3 after the muck is conveyed to the muck unloading section 14 to finish the small-radius conveying of the muck.
While the invention has been described in detail with reference to the drawings and examples, it will be understood by those skilled in the art that various changes in the details of the embodiments may be made without departing from the spirit of the invention, and various changes in the details of construction and materials may be substituted for elements thereof to form various embodiments, which are within the scope of the invention and are not intended to be limited to the details of the embodiments.
Claims (10)
1. A muck conveying device for TBM small-radius turning is characterized by comprising a guide rail frame, at least one driving mechanism, a pulley and a conveying belt; the guide rail frame is provided with a guide rail, and the guide rail comprises a slag receiving section, a straight section, a turning section and a slag discharging section; the pulley runs on the guide rail through a pulley wheel pair, and a friction plate, a friction wheel and a pinch roller are arranged on the pulley; two sides of the conveying belt are connected with the pulley through bolts and clamping plates; the driving mechanism comprises a power source, a reduction gearbox and a driving chain wheel, an input shaft of the driving chain wheel is connected with an output shaft of the reduction gearbox, the reduction gearbox is powered by the power source, and the driving chain wheel drives the friction wheel and the pinch roller to act on the friction plate so as to drive the pulley to move.
2. The muck conveying device for TBM small-radius turns according to claim 1, wherein a slag blocking plate for preventing muck from being left is arranged at the upper part of the slag receiving section, and a slag scraping plate for cleaning the conveying belt is arranged at the lower part of the slag discharging section.
3. The muck-conveying device for a small-radius turn of a TBM as claimed in claim 1 wherein said conveyor belt is a rubber conveyor belt.
4. The muck conveying device for a TBM small-radius turn according to claim 1, wherein the trolley wheel pair comprises two treads, an end cover fixed by a bolt is arranged above each tread, a wheel rim is arranged below each tread, a bearing is arranged on the inner side of each tread, and a sealing gasket is arranged below each bearing.
5. The muck conveying device for a TBM small-radius turn according to claim 1, wherein the power source is a driving motor adopting variable frequency speed regulation, the driving motor is controlled by a heading machine bus, and the driving motor and the reduction gearbox are symmetrically distributed on a guide rail.
6. The muck conveyor for small-radius turns of TBMs of claim 1, wherein said slag receiving section is provided with a belt storage bin and a tensioning mechanism.
7. The muck conveying device for TBM small-radius turning according to claim 6, wherein the belt storage bin comprises a direction-changing roller, a guide roller and a belt storage frame, and a device for coiling and jacking the trolley is arranged on the side of the direction-changing roller.
8. A muck conveying method using the muck conveying device for a small-radius turn of a TBM according to any one of claims 1 to 7, comprising the steps of:
(1) turning on the power source of the device, wherein the driving mechanism drives the conveying belt to enable the device to be in a running state;
(2) the muck conveying work is continuously carried out along with the tunneling work of the TBM, the synchronous extension of the guide rail is required after each tunneling distance, and the belt storage bin and the tensioning mechanism are adjusted at the same time;
(3) when the allowance of the belt storage bin is less than or equal to 30m, the temporary belt winding and unwinding device with the belt threaded is replaced, the belt is put in place and vulcanized, after vulcanization, the pulley is used for loading the whole roll of belt into the belt storage bin, and the tensioning mechanism is used for tensioning the belt.
9. The method of claim 8, wherein in step (2) the distance is less than or equal to 3000 mm.
10. The method of claim 8, wherein in step (2), the rail design length is less than or equal to the trolley clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111267498.4A CN113979023A (en) | 2021-10-29 | 2021-10-29 | Muck conveying device and method for TBM small-radius turning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111267498.4A CN113979023A (en) | 2021-10-29 | 2021-10-29 | Muck conveying device and method for TBM small-radius turning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113979023A true CN113979023A (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111267498.4A Pending CN113979023A (en) | 2021-10-29 | 2021-10-29 | Muck conveying device and method for TBM small-radius turning |
Country Status (1)
| Country | Link |
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| CN (1) | CN113979023A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223954A (en) * | 1998-01-22 | 1999-07-28 | 刘林书 | T-belt conveyer |
| CN102295134A (en) * | 2011-05-11 | 2011-12-28 | 李超 | Rail suspension type conveyor |
| CN104150165A (en) * | 2014-08-25 | 2014-11-19 | 安徽理工大学 | Extension pipe type belt conveyor for underground gate way |
| CN105668124A (en) * | 2016-03-25 | 2016-06-15 | 四川广旺能源发展（集团）有限责任公司机械制造分公司 | Belt type conveyor applicable to large curve with small turning radius |
| CN105691749A (en) * | 2016-03-28 | 2016-06-22 | 山东科技大学 | Automatic packaging machine with box sealing device |
| CN205616149U (en) * | 2016-04-06 | 2016-10-05 | 天奇自动化工程股份有限公司 | Track is vertical to wearing and tearing detection device |
| CN108343444A (en) * | 2018-03-13 | 2018-07-31 | 中国水利水电第四工程局有限公司 | A kind of TBM coasting-flight phases continuous conveyor system extends TBM and does not shut down vulcanization process |
| CN113309535A (en) * | 2021-06-21 | 2021-08-27 | 中铁工程装备集团有限公司 | Combined continuous belt conveyor slag discharging system |
-
2021
- 2021-10-29 CN CN202111267498.4A patent/CN113979023A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223954A (en) * | 1998-01-22 | 1999-07-28 | 刘林书 | T-belt conveyer |
| CN102295134A (en) * | 2011-05-11 | 2011-12-28 | 李超 | Rail suspension type conveyor |
| CN104150165A (en) * | 2014-08-25 | 2014-11-19 | 安徽理工大学 | Extension pipe type belt conveyor for underground gate way |
| CN105668124A (en) * | 2016-03-25 | 2016-06-15 | 四川广旺能源发展（集团）有限责任公司机械制造分公司 | Belt type conveyor applicable to large curve with small turning radius |
| CN105691749A (en) * | 2016-03-28 | 2016-06-22 | 山东科技大学 | Automatic packaging machine with box sealing device |
| CN205616149U (en) * | 2016-04-06 | 2016-10-05 | 天奇自动化工程股份有限公司 | Track is vertical to wearing and tearing detection device |
| CN108343444A (en) * | 2018-03-13 | 2018-07-31 | 中国水利水电第四工程局有限公司 | A kind of TBM coasting-flight phases continuous conveyor system extends TBM and does not shut down vulcanization process |
| CN113309535A (en) * | 2021-06-21 | 2021-08-27 | 中铁工程装备集团有限公司 | Combined continuous belt conveyor slag discharging system |
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Application publication date: 20220128 |