CN110424981B - A sediment cleaning device that falls for tunnel - Google Patents
A sediment cleaning device that falls for tunnel Download PDFInfo
- Publication number
- CN110424981B CN110424981B CN201910773554.8A CN201910773554A CN110424981B CN 110424981 B CN110424981 B CN 110424981B CN 201910773554 A CN201910773554 A CN 201910773554A CN 110424981 B CN110424981 B CN 110424981B
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- China
- Prior art keywords
- tunnel
- cleaning
- device base
- limiting plate
- side limiting
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- 238000004140 cleaning Methods 0.000 title claims abstract description 54
- 239000013049 sediment Substances 0.000 title description 3
- 239000011435 rock Substances 0.000 claims abstract description 15
- 239000002893 slag Substances 0.000 claims abstract description 11
- 239000004575 stone Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 13
- 210000004907 gland Anatomy 0.000 claims description 10
- 238000010408 sweeping Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 238000009412 basement excavation Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000005641 tunneling Effects 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
Landscapes
- 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)
- Cleaning In General (AREA)
Abstract
The invention provides a slag falling cleaning device for a tunnel, which comprises a device base, wherein walking wheels are arranged on the device base, at least one top cleaning assembly is arranged above the device base, a first collecting tank is arranged below the device base and corresponds to the top cleaning assembly, and falling rocks at the top of the tunnel are transferred into the first collecting tank by the top cleaning assembly; the invention can clean the broken stones which easily fall off from the top of the tunnel, thereby greatly reducing the potential safety hazard of construction operation.
Description
Technical Field
The invention relates to a falling slag cleaning device for a tunnel, and belongs to the technical field of tunnel construction.
Background
The shield method is a fully mechanical construction method in the construction of the subsurface excavation method, which is a mechanical construction method for pushing a shield machine in the ground, preventing collapse into a tunnel by using a shield shell and duct pieces to support surrounding rocks around, excavating a soil body in front of an excavation surface by using a cutting device, transporting out of the tunnel by using an unearthing machine, pressing and jacking at the rear part by using a jack, and assembling precast concrete duct pieces to form a tunnel structure.
When a shield method is adopted for tunneling in subway tunnel excavation construction, a large amount of muck needs to be conveyed outwards, and the earth pressure balance shield machine conveys the muck by a belt and conveys the muck to a battery truck for conveying the muck out. In the process of conveying the residue soil by the belt, the residue soil falls outside is a difficult matter; meanwhile, if the broken stone falling from the top of the tunnel is encountered, the personal safety of constructors and the property safety of construction equipment are damaged.
Disclosure of Invention
The invention provides a device for cleaning fallen slag for a tunnel, which can be used for cleaning broken stones which easily fall from the top of the tunnel and greatly reduce the potential safety hazard of construction operation.
The specific technical scheme is as follows:
the utility model provides a sediment cleaning device that falls for tunnel, includes the device base, is equipped with the walking wheel on the device base, and the top of device base is equipped with at least one top and cleans the subassembly, and the below of device base cleans the subassembly with the top and corresponds and be equipped with first collecting vat, and the top cleans the subassembly and shifts the falling rocks at tunnel top to first collecting vat in.
Furthermore, the walking direction of the device base is the same as the extending direction of the tunnel.
Furthermore, the top cleaning assembly comprises two supporting baffle plates which are vertically fixed on the device base, the supporting baffle plates are arranged vertically to the walking direction of the device base, the two supporting baffle plates are clamped to form a clamping space, and two side limiting plates are respectively arranged at two ends of the clamping space;
one end of the side limiting plate is rotatably fixed on the device base, the other end of the side limiting plate is used for being in contact with the inner wall of the tunnel, a falling rock bearing groove is clamped between the side limiting plate and the supporting baffle plate and is communicated with a first collecting groove located below through a first channel;
a first cleaning mechanism is arranged in the rockfall receiving groove in a swinging mode.
Furthermore, the inner walls of the two supporting baffles are respectively and correspondingly provided with a first guide rail with a circular arc structure, the outer wall and the inner wall of the first guide rail are respectively provided with a rack, a main supporting shaft is arranged below the two supporting baffles, and the main supporting shaft is rotatably arranged below the first guide rail;
the first cleaning mechanism comprises two supporting rods, one ends of the two supporting rods are fixed on the main supporting shaft, and the other ends of the two supporting rods are fixed with the same cleaning head;
and each support rod is provided with a driving assembly which controls the support rod to swing along the first guide rail.
Furthermore, a transfer cavity is arranged in the cleaning head, and openings are arranged on the top and one side wall of the transfer cavity.
Further, drive assembly includes the drive groove, and rotatable gear and lower gear of being equipped with in the drive groove, the drive groove pressure is established in the outside of first guide rail, makes gear and lower gear mesh with the rack on first guide rail outer wall and the inner wall respectively, goes up the gear and rotates through first motor drive to make drive assembly can prolong first guide rail and remove, realized that the bracing piece uses the main tributary supporting axle to carry out the swing back and forth as the center.
Furthermore, a sliding sleeve is sleeved at the top of the side limiting plate, a pressure-bearing terminal with an end face in a circular arc structure is fixed on the sliding sleeve, a first spring is arranged between the sliding sleeve and the side limiting plate, and a plurality of balls are uniformly distributed at the top of the pressure-bearing terminal.
Furthermore, a plurality of buffer components are arranged on the device base corresponding to each side limiting plate; the buffering assembly comprises a pressure-bearing column, a gland is arranged in the top of the pressure-bearing column in an inserting mode and can move up and down, a second spring is arranged between the gland and the pressure-bearing column, and the gland is of a segment structure.
Furthermore, the bottom of the device base is horizontally arranged, and the thickness of the device base is gradually reduced from outside to inside.
Furthermore, the supporting rod is a pneumatic telescopic rod.
Furthermore, a main control box is further installed on the device base, the main control box is provided with a plurality of line sets for being connected with each execution element of the whole device, meanwhile, the main control box is also provided with signal bus output and connected with a central control system, and the operation control of the whole device is realized through a touch screen.
Further, the cleaning method using the slag falling cleaning device comprises the following steps:
1) the side limiting plate is turned outwards, so that the pressure-bearing terminal of the side limiting plate is pressed on the inner wall of the tunnel;
2) the device base extends to the tunnel to move under the action of the travelling wheels;
3) when the base of the device moves to one of the working positions, the operation is stopped, the driving assembly controls the first cleaning mechanism to swing, the cleaning mechanism firstly moves from the unopened end of the side wall of the transfer cavity to the opened end of the side wall, the unopened end of the side wall of the transfer cavity is contacted with the top of the tunnel in the moving process, and falling rocks are swept into the transfer cavity in the swinging process; when the transfer cavity swings to the open end of the side wall and faces downwards, the falling rocks roll onto the side limiting plate and then are transferred into the first collecting tank;
4) a reverse swing cleaning mechanism;
5) and repeating the step 2), the step 3) and the step 4) until the sweeping is finished.
The invention has the beneficial effects that:
1) the invention can clean the broken stones which are easy to fall off from the top of the tunnel, thereby greatly reducing the potential safety hazard of construction operation;
2) the impact force of falling rocks is effectively reduced by the buffer assembly, and the service life of the equipment is prolonged;
3) the structure setting of pressure-bearing terminal has reduced the resistance through the rolling friction between ball and the tunnel, has guaranteed stability.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a sectional view taken along line C-C of FIG. 1;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 2;
fig. 5 is a schematic structural diagram of the driving assembly.
Detailed Description
In order to make the technical scheme of the invention clearer and clearer, the invention is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention.
Reference numerals
The device comprises a device base 1, a travelling wheel 2, a first collecting tank 3, a supporting baffle 4, a side limiting plate 5, a falling rock bearing tank 6, a first channel 7, a first guide rail 9, a rack 10, a main supporting shaft 11, a supporting rod 12, a cleaning head 13, a driving assembly 14, a transfer cavity 15, a tunnel 16 and a main control box 17;
a buffer assembly 101, a pressure bearing column 102, a gland 103 and a second spring 104;
a sliding sleeve 501, a pressure-bearing terminal 502, a first spring 503 and a ball 504;
a drive slot 1401, an upper gear 1402, a lower gear 1403.
As shown in the figure, the falling slag cleaning device for the tunnel comprises a device base 1, wherein walking wheels 2 are arranged on the device base, at least one top cleaning assembly is arranged above the device base, a first collecting tank 3 is arranged below the device base and corresponds to the top cleaning assembly, and falling stones at the top of the tunnel are transferred to the first collecting tank by the top cleaning assembly.
Furthermore, the walking direction of the device base is the same as the extending direction of the tunnel.
Further, the top cleaning assembly comprises two supporting baffle plates 4 which are vertically fixed on the device base, the supporting baffle plates are arranged perpendicular to the walking direction of the device base, the two supporting baffle plates are clamped to form a clamping space, and two side limiting plates 5 are respectively arranged at two ends of the clamping space;
one end of the side limiting plate is rotatably fixed on the device base, the other end of the side limiting plate is used for being in contact with the inner wall of the tunnel 16, a falling rock bearing groove 6 is formed between the side limiting plate and the supporting baffle in a clamping mode, and the falling rock bearing groove is communicated with a first collecting groove located below through a first channel 7;
a first cleaning mechanism is arranged in the rockfall receiving groove in a swinging mode.
Furthermore, the inner walls of the two supporting baffles are respectively and correspondingly provided with a first guide rail 9 with a circular arc structure, the outer wall and the inner wall of each first guide rail are respectively provided with a rack 10, a main supporting shaft 11 is arranged below the two supporting baffles, and the main supporting shaft is rotatably arranged below the first guide rail;
the first cleaning mechanism comprises two support rods 12, one ends of the two support rods are fixed on the main support shaft, and the other ends of the two support rods are fixed with the same cleaning head 13;
each support bar is provided with a drive assembly 14 which controls the support bar to swing along the first guide rail.
Furthermore, a transfer cavity 15 is arranged in the cleaning head, and openings are arranged on the top and one side wall of the transfer cavity.
Further, drive assembly includes drive groove 1401, rotatable being equipped with in the drive groove gear 1402 and lower gear 1403, the drive groove is pressed and is established in the outside of first guide rail, make gear and lower gear respectively with the rack on first guide rail outer wall and the inner wall mesh mutually, go up the gear through first motor drive rotation to make drive assembly can prolong first guide rail and remove, realized that the bracing piece uses the main tributary supporting axle to carry out the swing back and forth as the center.
Furthermore, a sliding sleeve 501 is sleeved at the top of the side limiting plate, a pressure-bearing terminal 502 with an end face in a circular arc structure is fixed on the sliding sleeve, a first spring 503 is arranged between the sliding sleeve and the side limiting plate, and a plurality of balls 504 are uniformly distributed at the top of the pressure-bearing terminal.
Furthermore, a plurality of buffer components 101 are arranged on the device base corresponding to each side limiting plate; the buffer assembly comprises a pressure-bearing column 102, a gland 103 is arranged at the top of the pressure-bearing column in an inserting mode and can move up and down, a second spring 104 is arranged between the gland and the pressure-bearing column, and the gland is of a ball-segment structure.
Furthermore, the bottom of the device base is horizontally arranged, and the thickness of the device base is gradually reduced from outside to inside.
Furthermore, the supporting rod is a pneumatic telescopic rod.
Furthermore, a main control box 17 is further installed on the base of the device, the main control box is provided with a plurality of line sets for being connected with each execution element of the whole device, meanwhile, the main control box is also provided with signal bus output and connected with a central control system, and the touch screen is used for realizing the operation control of the whole device.
Further, the cleaning method using the slag falling cleaning device comprises the following steps:
1) the side limiting plate is turned outwards, so that the pressure-bearing terminal of the side limiting plate is pressed on the inner wall of the tunnel;
2) the device base extends to the tunnel to move under the action of the travelling wheels;
3) when the base of the device moves to one of the working positions, the operation is stopped, the driving assembly controls the first cleaning mechanism to swing, the cleaning mechanism firstly moves from the unopened end of the side wall of the transfer cavity to the opened end of the side wall, the unopened end of the side wall of the transfer cavity is contacted with the top of the tunnel in the moving process, and falling rocks are swept into the transfer cavity in the swinging process; when the transfer cavity swings to the open end of the side wall and faces downwards, the falling rocks roll onto the side limiting plate and then are transferred into the first collecting tank;
4) a reverse swing cleaning mechanism;
5) and repeating the step 2), the step 3) and the step 4) until the sweeping is finished.
Claims (7)
1. A fallen slag cleaning device for a tunnel is characterized by comprising a device base, wherein walking wheels are arranged on the device base, a top cleaning assembly is arranged above the device base, a first collecting tank is arranged below the device base and corresponds to the top cleaning assembly, and the top cleaning assembly transfers fallen stones at the top of the tunnel into the first collecting tank;
the walking direction of the device base is the same as the extending direction of the tunnel;
the top cleaning assembly comprises two supporting baffles which are vertically fixed on the device base, the supporting baffles are vertically arranged with the walking direction of the device base, the two supporting baffles are clamped to form a clamping space, and two ends of the clamping space are respectively provided with a side limiting plate; one end of the side limiting plate is rotatably fixed on the device base, the other end of the side limiting plate is used for being in contact with the inner wall of the tunnel, a falling rock bearing groove is clamped between the side limiting plate and the supporting baffle plate and is communicated with a first collecting groove located below through a first channel;
a first cleaning mechanism is arranged in the rockfall receiving groove in a swinging manner; the inner walls of the two supporting baffles are respectively and correspondingly provided with at least one first guide rail with a circular arc structure, the outer wall and the inner wall of each first guide rail are respectively provided with a rack, a main supporting shaft is arranged below the two supporting baffles, and the main supporting shaft is rotatably arranged below the first guide rails; the first cleaning mechanism comprises two supporting rods, one ends of the two supporting rods are fixed on the main supporting shaft, and the other ends of the two supporting rods are fixed with the same cleaning head;
and each support rod is provided with a driving assembly which controls the support rod to swing along the first guide rail.
2. A slag fall-cleaning apparatus for a tunnel according to claim 1, wherein the cleaning head has a transfer chamber therein, and openings are provided in a top portion and one of side walls of the transfer chamber.
3. A slag-falling cleaning apparatus for a tunnel according to claim 2, wherein the driving unit includes a driving groove, an upper gear and a lower gear are rotatably provided in the driving groove, the driving groove is pressed to the outside of the first guide rail so that the upper gear and the lower gear are engaged with the racks formed on the outer wall and the inner wall of the first guide rail, respectively, the upper gear is rotated by the first motor so that the driving unit is moved along the first guide rail, and the support rod is swung back and forth about the main support shaft.
4. A slag-falling cleaning device for tunnel according to claim 3, wherein a sliding sleeve is sleeved on the top of the side limiting plate, a pressure-bearing terminal with an arc-shaped end surface is fixed on the sliding sleeve, a first spring is arranged between the sliding sleeve and the side limiting plate, and a plurality of balls are uniformly distributed on the top of the pressure-bearing terminal.
5. A fallen slag cleaning device for tunnel according to claim 4, wherein a plurality of buffer assemblies are provided on the device base corresponding to each side stopper plate; the buffering assembly comprises a pressure-bearing column, a gland is arranged in the top of the pressure-bearing column in an inserting mode and can move up and down, a second spring is arranged between the gland and the pressure-bearing column, and the gland is of a segment structure.
6. A slag falling-off cleaning device for a tunnel according to claim 5, wherein the bottom of the device base is horizontally disposed, and the thickness of the device base is gradually reduced from the outside to the inside.
7. The cleaning method using the fallen slag cleaning device for the tunnel according to claim 6 is:
1) the side limiting plate is turned outwards, so that the pressure-bearing terminal of the side limiting plate is pressed on the inner wall of the tunnel;
2) the device base moves along the tunnel under the action of the travelling wheels;
3) when the base of the device moves to one of the working positions, the operation is stopped, the driving assembly controls the first cleaning mechanism to swing, the first cleaning mechanism firstly moves from the unopened end of the side wall of the transfer cavity to the opened end of the side wall, the unopened end of the side wall of the transfer cavity is contacted with the top of the tunnel in the moving process, and falling rocks are swept into the transfer cavity in the swinging process; when the transfer cavity swings to the open end of the side wall and faces downwards, the falling rocks roll onto the side limiting plate and then are transferred into the first collecting tank;
4) reversely swinging the first cleaning mechanism;
5) and repeating the step 2), the step 3) and the step 4) until the sweeping is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773554.8A CN110424981B (en) | 2019-08-21 | 2019-08-21 | A sediment cleaning device that falls for tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773554.8A CN110424981B (en) | 2019-08-21 | 2019-08-21 | A sediment cleaning device that falls for tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN110424981A CN110424981A (en) | 2019-11-08 |
| CN110424981B true CN110424981B (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910773554.8A Active CN110424981B (en) | 2019-08-21 | 2019-08-21 | A sediment cleaning device that falls for tunnel |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847936B (en) * | 2019-12-19 | 2020-12-01 | 长沙理工大学 | Intelligence tunnel section levels device |
| CN111155474A (en) * | 2020-02-26 | 2020-05-15 | 山东省路桥集团有限公司 | Tunnel is pressed down and is encircleed virtual sediment cleaning device |
| CN111691919A (en) * | 2020-06-19 | 2020-09-22 | 合肥皖兴建设工程有限公司 | Traffic tunnel civil engineering construction comprehensive construction process |
| CN112281723A (en) * | 2020-11-03 | 2021-01-29 | 湖北文理学院 | Integrated equipment is collected in tunnel cleaning |
| CN114438939B (en) * | 2022-03-02 | 2022-12-27 | 中铁十五局集团有限公司 | Scum cleaning system of arc bottom surface in tunnel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61266800A (en) * | 1985-05-20 | 1986-11-26 | 東京道路エンジニア株式会社 | Automatic washing car for inner wall surface of tunnel |
| KR20120041497A (en) * | 2010-10-21 | 2012-05-02 | 서일수 | Cleaner of car for cleaning tunnel |
| CN205330677U (en) * | 2015-12-01 | 2016-06-22 | 中国铁建大桥工程局集团有限公司 | Shield tunnel sediment clearance system that falls |
| CN205822088U (en) * | 2016-05-27 | 2016-12-21 | 连江圆明工业设计有限公司 | A kind of tunnel dedusting car |
| CN207362765U (en) * | 2017-08-17 | 2018-05-15 | 重庆凌慧科技有限公司 | A kind of novel washing machine people |
| CN109457651A (en) * | 2018-08-01 | 2019-03-12 | 广东华隧建设集团股份有限公司 | A kind of tunnel cleaning vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204532354U (en) * | 2015-03-26 | 2015-08-05 | 湖南涟邵建设工程(集团)有限责任公司 | A kind of bauxite tunnel fully-mechanized digging machine construction driver's cabin safety device |
| EP3418450B1 (en) * | 2017-06-21 | 2020-05-06 | Brügger HTB GmbH | Tunnel cleaning device |
| CN110093955A (en) * | 2018-01-30 | 2019-08-06 | 岭东核电有限公司 | Cleaning collection system and its control method for tunnel |
-
2019
- 2019-08-21 CN CN201910773554.8A patent/CN110424981B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61266800A (en) * | 1985-05-20 | 1986-11-26 | 東京道路エンジニア株式会社 | Automatic washing car for inner wall surface of tunnel |
| KR20120041497A (en) * | 2010-10-21 | 2012-05-02 | 서일수 | Cleaner of car for cleaning tunnel |
| CN205330677U (en) * | 2015-12-01 | 2016-06-22 | 中国铁建大桥工程局集团有限公司 | Shield tunnel sediment clearance system that falls |
| CN205822088U (en) * | 2016-05-27 | 2016-12-21 | 连江圆明工业设计有限公司 | A kind of tunnel dedusting car |
| CN207362765U (en) * | 2017-08-17 | 2018-05-15 | 重庆凌慧科技有限公司 | A kind of novel washing machine people |
| CN109457651A (en) * | 2018-08-01 | 2019-03-12 | 广东华隧建设集团股份有限公司 | A kind of tunnel cleaning vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 全断面隧道掘进机同步清理台车研究;薛永庆;《施工技术》;20151228;第44卷;第451-453页 * |
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