CN117328902A - Slag scraping device for dust cover of mixed spraying system, mixed spraying system and TBM - Google Patents
Slag scraping device for dust cover of mixed spraying system, mixed spraying system and TBM Download PDFInfo
- Publication number
- CN117328902A CN117328902A CN202311513557.0A CN202311513557A CN117328902A CN 117328902 A CN117328902 A CN 117328902A CN 202311513557 A CN202311513557 A CN 202311513557A CN 117328902 A CN117328902 A CN 117328902A
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- frame
- dust cover
- shaped
- spraying system
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- 239000002893 slag Substances 0.000 title claims abstract description 106
- 238000005507 spraying Methods 0.000 title claims abstract description 89
- 239000000428 dust Substances 0.000 title claims abstract description 81
- 238000007790 scraping Methods 0.000 title claims abstract description 70
- 230000002093 peripheral effect Effects 0.000 claims abstract description 33
- 230000033001 locomotion Effects 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 16
- 239000013049 sediment Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 239000000463 material Substances 0.000 abstract description 23
- 238000011010 flushing procedure Methods 0.000 abstract description 8
- 239000002002 slurry Substances 0.000 abstract description 6
- 230000005641 tunneling Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 30
- 208000022971 Tuberculous meningitis Diseases 0.000 description 16
- 208000001223 meningeal tuberculosis Diseases 0.000 description 16
- 230000000694 effects Effects 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 7
- 239000004567 concrete Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Cleaning In General (AREA)
Abstract
The utility model provides a slag scraping device for a dust cover of a mixed spraying system, the mixed spraying system and a TBM, and belongs to the technical field of tunnel tunneling equipment. The slag scraping device comprises a support, the support comprises an arc-shaped track extending along an arc, a rotary trolley is mounted on the arc-shaped track, the rotary trolley comprises a frame and a driving component for driving the frame to rotate circumferentially along the arc-shaped track, a scraper is arranged on the frame and used for scraping off slag falling on the outer peripheral surface of the dust cover and driving the scum to slide off the dust cover when the frame rotates circumferentially. Because the scraper is in rotary motion, not only can the falling slag be scraped, but also the scum can be directly driven to slide off from the dust cover, so that the operation of spraying water and flushing the slag is omitted, and water resources are saved. In addition, the slag scraping device can be synchronously carried out with the slurry spraying surface trowelling device or slurry spraying operation, so that the rebound materials falling on the surface of the dust cover are timely scraped before solidification, a water spraying system is not required to be configured to wet slag in advance, the structure of the mixed spraying system can be simplified, and the water resource waste is reduced.
Description
Technical Field
The utility model relates to a slag scraping device for a dust cover of a mixed spraying system, the mixed spraying system and a TBM, and belongs to the technical field of tunnel tunneling equipment.
Background
When the open TBM is used for tunnel construction, initial anchor spraying support is needed to stabilize surrounding rock, when spraying and mixing operation is performed, the phenomena of overlarge concrete spraying thickness, larger bulges, bulges and the like can occur at individual positions due to uneven hole wall, mishandling of spraying hands and the like, and then a trowelling device is needed to trowelle a spraying surface. For example, the concrete slag scraping device, the spraying and mixing device and the TBM disclosed in the Chinese patent with the publication number of CN219809011U are disclosed, wherein the concrete slag scraping device is fixed on a spraying mechanical arm of a spraying bridge of a spraying and mixing system, so that the forward and backward movement along the tunneling direction of a tunnel and the circular movement on the section of the tunnel are realized, the slag scraping can be synchronously performed while the spraying operation is performed, and the spraying surface is smoothed.
However, the slurry inevitably falls on the dust cover of the slurry spraying bridge in the trowelling process, and in addition, about 10% -30% of rebound materials are generated in the spraying and mixing process, and the rebound materials also fall on the dust cover, so that excessive material accumulation can cause the risk of corrosion and overload deformation of the dust cover, and cleaning is needed. If manual cleaning is adopted, because other operations are strictly forbidden by spraying area during spraying and mixing operation, the spraying and mixing operation can be carried out after the spraying and mixing operation is finished, but the spraying and mixing operation is usually carried out for more than forty minutes once, the concrete is coagulated when the manual cleaning is started, and only tools such as a pneumatic pick, a hoe and the like can be used for cleaning, so that the cleaning difficulty is very high, and the time and the labor are consumed.
In order to solve the problems, the Chinese patent application publication No. CN218454747U discloses a TBM guniting system, which comprises a protective cover (namely a dust cover), wherein an arc-shaped sliding frame is arranged on the dust cover, a slag removing device is arranged on the arc-shaped sliding frame, the slag removing device comprises an arc-shaped cutting board which is matched with the peripheral surface of the dust cover and a pitching hydraulic cylinder which is used for adjusting the pitching angle of the arc-shaped cutting board, and a water nozzle used for wetting slag and flushing slag is further arranged on the arc-shaped sliding frame. When in spraying operation, the slag removing device is hidden under the arc-shaped sliding frame, so that rebound concrete is prevented from falling on the slag removing device; after the spraying is finished, firstly adjusting the position of the arc-shaped cutting board, and then starting to wet slag through a water spray nozzle; after the wet slag is finished, the arc-shaped sliding frame drives the arc-shaped cutting board to move backwards to start slag removal, and after the arc-shaped cutting board moves to the limit position, the hydraulic cylinder is driven to push the arc-shaped cutting board to move backwards to continue slag removal; finally, the scum on the dust cover is washed away by the water spray nozzle.
The slag removal device in the above patent starts slag removal after the spraying is finished, in order to reduce the slag removal difficulty, a water spray nozzle is adopted to wet slag, an arc-shaped knife board can only move forwards and backwards, the shoveled scum still needs to be sprayed with water to be washed away, and therefore, a water spray system which is required to be configured not only causes the complex structure of a mixed spraying system, but also causes the waste of water resources, and meanwhile, the time consumed by the mode of spraying slurry firstly and removing slag later is longer, so that the overall operation efficiency of the TBM is influenced.
Disclosure of Invention
The utility model aims to provide a slag scraping device for a dust cover of a mixed spraying system, which aims to solve the problems that the existing slag cleaning device adopts a mode of moving slag back and forth to cause that the shoveled slag cannot automatically slide off the dust cover but needs to be sprayed with water to wash off, so that water resources are wasted; the utility model also aims to provide a mixed spraying system and a TBM so as to solve the problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a mix sediment device of scraping for dust cover of spouting system, includes the support that is used for setting up the dust cover outside at TBM mixed spouts system, and the support includes along the arc track of pitch arc extension, installs rotatory dolly on the arc track, and rotatory dolly includes the frame and drives the frame and carry out the rotatory drive unit of circumference along the arc track, is provided with the scraper on the frame, and the scraper is used for scraping the sediment that falls on the dust cover outer peripheral face and drives the dross and slide from the dust cover when frame circumference rotates.
The beneficial effects of the technical scheme are that: the utility model provides a pioneering slag scraping device, wherein a bracket provides a mounting foundation for the slag scraping device, an arc-shaped track is arranged on the bracket, a rotary trolley is arranged on the arc-shaped track and comprises a driving part, the rotary trolley can drive a frame to circumferentially rotate along the arc-shaped track, meanwhile, a scraper is arranged on the frame, so that the scraper can rotationally move along with the circumferential rotation of the frame, and accordingly, slag falling on the peripheral surface of a dust cover is scraped, and the scraper can directly drive scum to slide off from the dust cover due to the fact that the scraper is rotationally moved, so that the operation of spraying water and flushing slag is omitted, and water resources are saved.
Further, a driving mechanism for driving the scraper to move along the radial direction of the arc-shaped track so as to adjust the interval between the scraper and the peripheral surface of the dust cover is arranged on the frame.
The beneficial effects of the technical scheme are that: the spacing between the scraper and the peripheral surface of the dust cover can be properly adjusted according to the thickness of the slag, so that a better slag scraping effect is obtained.
Further, the driving mechanism comprises a driving cylinder with a telescopic rod, a protective cover for covering the driving cylinder is arranged on the frame, the telescopic rod is connected with the scraper through a connecting frame penetrating through the protective cover, and a through hole for the connecting frame to penetrate through is a long hole extending along the radial direction of the arc-shaped track.
The beneficial effects of the technical scheme are that: the driving cylinder is adopted to conveniently control the movement of the scraper, and meanwhile, the driving cylinder can be covered by the protective cover arranged on the frame, so that the blocking caused by the fact that rebound materials enter the driving cylinder is avoided; it is the setting of protection casing, so set up the link again, the link passes the protection casing, makes things convenient for the connection between telescopic link and the scraper, sets up the slot hole on the protection casing simultaneously, makes things convenient for the removal of link.
Further, the frame is provided with a movable frame along the axial guiding movement of the circle where the arc-shaped track is located, the driving mechanism is arranged on the movable frame, and the frame is provided with a driving structure for driving the movable frame to axially move.
The beneficial effects of the technical scheme are that: the movable frame can drive the scraper to axially move, so that the range of scraping slag is enlarged.
Further, the movable frame comprises an axial rack extending along the axial direction, and the driving structure comprises a driving motor and a driving gear in transmission connection with the output end of the driving motor, wherein the driving gear is meshed with the axial rack.
The beneficial effects of the technical scheme are that: the driving mode of the gear rack is adopted, the structure is simple, the arrangement is convenient, and the use effect is good.
Further, a fixed rail extending along the axial direction is fixedly arranged on the frame, and the axial rack is in guide fit with the fixed rail.
The beneficial effects of the technical scheme are that: the rack not only plays a driving role, but also plays a guiding role, and the structure is more compact.
Further, an arc-shaped rack extending along an arc is arranged on the bracket or the arc-shaped track, and the driving part comprises a rotary power source and a transmission gear in transmission connection with the output end of the rotary power source, wherein the transmission gear is meshed with the arc-shaped rack.
The beneficial effects of the technical scheme are that: the driving mode of the gear rack is adopted, the structure is simple, the arrangement is convenient, and the use effect is good.
Further, a connecting structure used for being connected with the inner peripheral surface of an arc-shaped sliding frame of the TBM mixed spraying system for installing the spraying mechanical arm is arranged on the bracket, so that the bracket is hidden in the arc-shaped sliding frame.
The beneficial effects of the technical scheme are that: the inner peripheral surface of the arc-shaped sliding frame is connected with the inner peripheral surface of the arc-shaped sliding frame through the connecting structure, so that the installation and arrangement of the bracket are facilitated, and meanwhile, in the using process, the arc-shaped sliding frame is utilized to cover the bracket, so that the smooth movement of the rotary trolley is prevented from being influenced due to the fact that rebound materials fall onto the bracket.
Further, two arc-shaped rails are provided, the two arc-shaped rails are provided with C-shaped grooves with openings which are oppositely arranged, and travelling wheels or sliding blocks which are respectively embedded into the two C-shaped grooves are arranged on the frame.
The beneficial effects of the technical scheme are that: the walking wheels or the sliding blocks are embedded into the C-shaped grooves with the two openings oppositely arranged, so that a good limiting effect can be achieved on the frame, and the stability and the safety of movement are ensured.
Further, the arcuate track has a length in the circumferential direction that is greater than or equal to the arc length of a quarter circumference and less than or equal to the arc length of a half circumference.
The beneficial effects of the technical scheme are that: the problem that the slag scraping range is influenced due to the fact that the arc-shaped track is too short is avoided, and meanwhile, the problem that the structure is complex and the weight is large due to the fact that the arc-shaped track is too long is also avoided.
In order to achieve the above purpose, the mixed spraying system in the utility model adopts the following technical scheme:
the utility model provides a mix system of spouting, including the dust cover and follow the outside arc balladeur train of axial direction removal setting at the dust cover, install the spraying mechanical arm on the arc balladeur train, mix the system of spouting still including scraping sediment device, scrape sediment device including setting up at the outside support of dust cover, the support is including the arc track that extends along the pitch arc, install rotatory dolly on the arc track, rotatory dolly includes the frame and drive the frame and carry out the rotatory drive unit of circumference along the arc track, be provided with the scraper on the frame, the scraper is used for scraping the sediment that falls on the dust cover outer peripheral face and drive the dross and slide from the dust cover when frame circumference rotates.
The beneficial effects of the technical scheme are that: the utility model provides an improved mixed spraying system, wherein a bracket of a slag scraping device provides a mounting foundation for the slag scraping device, an arc-shaped track is arranged on the bracket, a rotary trolley is arranged on the arc-shaped track and comprises a driving part, the rotary trolley can drive a frame to circumferentially rotate along the arc-shaped track, and meanwhile, a scraper is arranged on the frame, so that the scraper can rotationally move along with the circumferential rotation of the frame, and accordingly, slag falling on the peripheral surface of a dust cover is scraped, and because the scraper rotationally moves, the slag can be directly driven to slide off the dust cover, so that the operation of spraying and flushing slag is omitted, and water resources are saved.
Further, a driving mechanism for driving the scraper to move along the radial direction of the arc-shaped track so as to adjust the interval between the scraper and the peripheral surface of the dust cover is arranged on the frame.
The beneficial effects of the technical scheme are that: the spacing between the scraper and the peripheral surface of the dust cover can be properly adjusted according to the thickness of the slag, so that a better slag scraping effect is obtained.
Further, the driving mechanism comprises a driving cylinder with a telescopic rod, a protective cover for covering the driving cylinder is arranged on the frame, the telescopic rod is connected with the scraper through a connecting frame penetrating through the protective cover, and a through hole for the connecting frame to penetrate through is a long hole extending along the radial direction of the arc-shaped track.
The beneficial effects of the technical scheme are that: the driving cylinder is adopted to conveniently control the movement of the scraper, and meanwhile, the driving cylinder can be covered by the protective cover arranged on the frame, so that the blocking caused by the fact that rebound materials enter the driving cylinder is avoided; it is the setting of protection casing, so set up the link again, the link passes the protection casing, makes things convenient for the connection between telescopic link and the scraper, sets up the slot hole on the protection casing simultaneously, makes things convenient for the removal of link.
Further, the frame is provided with a movable frame along the axial guiding movement of the circle where the arc-shaped track is located, the driving mechanism is arranged on the movable frame, and the frame is provided with a driving structure for driving the movable frame to axially move.
The beneficial effects of the technical scheme are that: the movable frame can drive the scraper to axially move, so that the range of scraping slag is enlarged.
Further, the movable frame comprises an axial rack extending along the axial direction, and the driving structure comprises a driving motor and a driving gear in transmission connection with the output end of the driving motor, wherein the driving gear is meshed with the axial rack.
The beneficial effects of the technical scheme are that: the driving mode of the gear rack is adopted, the structure is simple, the arrangement is convenient, and the use effect is good.
Further, a fixed rail extending along the axial direction is fixedly arranged on the frame, and the axial rack is in guide fit with the fixed rail.
The beneficial effects of the technical scheme are that: the rack not only plays a driving role, but also plays a guiding role, and the structure is more compact.
Further, an arc-shaped rack extending along an arc is arranged on the bracket or the arc-shaped track, and the driving part comprises a rotary power source and a transmission gear in transmission connection with the output end of the rotary power source, wherein the transmission gear is meshed with the arc-shaped rack.
The beneficial effects of the technical scheme are that: the driving mode of the gear rack is adopted, the structure is simple, the arrangement is convenient, and the use effect is good.
Further, a connecting structure connected with the inner peripheral surface of the arc-shaped sliding frame is arranged on the bracket, so that the bracket is hidden in the arc-shaped sliding frame.
The beneficial effects of the technical scheme are that: the inner peripheral surface of the arc-shaped sliding frame is connected with the inner peripheral surface of the arc-shaped sliding frame through the connecting structure, so that the installation and arrangement of the bracket are facilitated, and meanwhile, in the using process, the arc-shaped sliding frame is utilized to cover the bracket, so that the smooth movement of the rotary trolley is prevented from being influenced due to the fact that rebound materials fall onto the bracket.
Further, two arc-shaped rails are provided, the two arc-shaped rails are provided with C-shaped grooves with openings which are oppositely arranged, and travelling wheels or sliding blocks which are respectively embedded into the two C-shaped grooves are arranged on the frame.
The beneficial effects of the technical scheme are that: the walking wheels or the sliding blocks are embedded into the C-shaped grooves with the two openings oppositely arranged, so that a good limiting effect can be achieved on the frame, and the stability and the safety of movement are ensured.
Further, the arcuate track has a length in the circumferential direction that is greater than or equal to the arc length of a quarter circumference and less than or equal to the arc length of a half circumference.
The beneficial effects of the technical scheme are that: the problem that the slag scraping range is influenced due to the fact that the arc-shaped track is too short is avoided, and meanwhile, the problem that the structure is complex and the weight is large due to the fact that the arc-shaped track is too long is also avoided.
In order to achieve the above purpose, the TBM in the utility model adopts the following technical scheme:
the utility model provides a TBM, including mixing the system of spouting, mix the system of spouting and include the dust cover and follow the arc balladeur train of axial direction removal setting outside the dust cover, install the spraying mechanical arm on the arc balladeur train, mix the system of spouting still including scraping sediment device, scrape sediment device including setting up the support outside the dust cover, the support includes the arc track that extends along the pitch arc, install rotatory dolly on the arc track, rotatory dolly includes the frame and drives the frame and carry out the rotatory drive unit of circumference along the arc track, be provided with the scraper on the frame, the scraper is used for scraping the sediment that falls on the dust cover outer peripheral face and drives the dross and slide from the dust cover when frame circumference is rotatory.
The beneficial effects of the technical scheme are that: the utility model provides an improved TBM, wherein a bracket of a slag scraping device provides a mounting foundation for the slag scraping device, an arc-shaped track is arranged on the bracket, a rotary trolley is arranged on the arc-shaped track and comprises a driving part, the rotary trolley can drive a frame to circumferentially rotate along the arc-shaped track, and meanwhile, a scraper is arranged on the frame, so that the scraper can rotationally move along with the circumferential rotation of the frame, and accordingly, slag falling on the peripheral surface of a dust cover is scraped, and because the scraper rotationally moves, the slag can be directly driven to slide off the dust cover, so that the operation of spraying water and flushing slag is omitted, and water resources are saved.
Further, a driving mechanism for driving the scraper to move along the radial direction of the arc-shaped track so as to adjust the interval between the scraper and the peripheral surface of the dust cover is arranged on the frame.
The beneficial effects of the technical scheme are that: the spacing between the scraper and the peripheral surface of the dust cover can be properly adjusted according to the thickness of the slag, so that a better slag scraping effect is obtained.
Further, the driving mechanism comprises a driving cylinder with a telescopic rod, a protective cover for covering the driving cylinder is arranged on the frame, the telescopic rod is connected with the scraper through a connecting frame penetrating through the protective cover, and a through hole for the connecting frame to penetrate through is a long hole extending along the radial direction of the arc-shaped track.
The beneficial effects of the technical scheme are that: the driving cylinder is adopted to conveniently control the movement of the scraper, and meanwhile, the driving cylinder can be covered by the protective cover arranged on the frame, so that the blocking caused by the fact that rebound materials enter the driving cylinder is avoided; it is the setting of protection casing, so set up the link again, the link passes the protection casing, makes things convenient for the connection between telescopic link and the scraper, sets up the slot hole on the protection casing simultaneously, makes things convenient for the removal of link.
Further, the frame is provided with a movable frame along the axial guiding movement of the circle where the arc-shaped track is located, the driving mechanism is arranged on the movable frame, and the frame is provided with a driving structure for driving the movable frame to axially move.
The beneficial effects of the technical scheme are that: the movable frame can drive the scraper to axially move, so that the range of scraping slag is enlarged.
Further, the movable frame comprises an axial rack extending along the axial direction, and the driving structure comprises a driving motor and a driving gear in transmission connection with the output end of the driving motor, wherein the driving gear is meshed with the axial rack.
The beneficial effects of the technical scheme are that: the driving mode of the gear rack is adopted, the structure is simple, the arrangement is convenient, and the use effect is good.
Further, a fixed rail extending along the axial direction is fixedly arranged on the frame, and the axial rack is in guide fit with the fixed rail.
The beneficial effects of the technical scheme are that: the rack not only plays a driving role, but also plays a guiding role, and the structure is more compact.
Further, an arc-shaped rack extending along an arc is arranged on the bracket or the arc-shaped track, and the driving part comprises a rotary power source and a transmission gear in transmission connection with the output end of the rotary power source, wherein the transmission gear is meshed with the arc-shaped rack.
The beneficial effects of the technical scheme are that: the driving mode of the gear rack is adopted, the structure is simple, the arrangement is convenient, and the use effect is good.
Further, a connecting structure connected with the inner peripheral surface of the arc-shaped sliding frame is arranged on the bracket, so that the bracket is hidden in the arc-shaped sliding frame.
The beneficial effects of the technical scheme are that: the inner peripheral surface of the arc-shaped sliding frame is connected with the inner peripheral surface of the arc-shaped sliding frame through the connecting structure, so that the installation and arrangement of the bracket are facilitated, and meanwhile, in the using process, the arc-shaped sliding frame is utilized to cover the bracket, so that the smooth movement of the rotary trolley is prevented from being influenced due to the fact that rebound materials fall onto the bracket.
Further, two arc-shaped rails are provided, the two arc-shaped rails are provided with C-shaped grooves with openings which are oppositely arranged, and travelling wheels or sliding blocks which are respectively embedded into the two C-shaped grooves are arranged on the frame.
The beneficial effects of the technical scheme are that: the walking wheels or the sliding blocks are embedded into the C-shaped grooves with the two openings oppositely arranged, so that a good limiting effect can be achieved on the frame, and the stability and the safety of movement are ensured.
Further, the arcuate track has a length in the circumferential direction that is greater than or equal to the arc length of a quarter circumference and less than or equal to the arc length of a half circumference.
The beneficial effects of the technical scheme are that: the problem that the slag scraping range is influenced due to the fact that the arc-shaped track is too short is avoided, and meanwhile, the problem that the structure is complex and the weight is large due to the fact that the arc-shaped track is too long is also avoided.
Drawings
FIG. 1 is a schematic front view of a hybrid spray system according to the present utility model;
FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1;
FIG. 3 is a perspective view of a slag scraping device in the mixed spraying system of the utility model;
FIG. 4 is a front view of a slag scraping device in the mixed spraying system of the utility model;
FIG. 5 is a side view of the bracket of the slag scraping device and the arc-shaped sliding frame in the mixed spraying system;
FIG. 6 is a B-B cross-sectional view of FIG. 5;
FIG. 7 is a front cut-away view of a slag scraping device in the hybrid spray system of the present utility model;
FIG. 8 is a cross-sectional view taken along the direction C-C in FIG. 7;
FIG. 9 is a front cut-away view of a doctor blade mechanism of the slag scraping device of the hybrid spray system of the present utility model;
FIG. 10 is a top view of a doctor blade mechanism of the slag scraping device of the hybrid spray system of the present utility model;
FIG. 11 is a view showing a state of a scraper mechanism of a slag scraping device in the mixed spraying system before use;
FIG. 12 is a state diagram of the scraper mechanism of the slag scraping device in the mixed spraying system after radial adjustment;
FIG. 13 is a state diagram of the scraper mechanism of the slag scraping device in the mixed spraying system after axial adjustment;
FIG. 14 is a schematic diagram illustrating the operation of a slurry surface trowelling device in a hybrid spray system of the present utility model;
FIG. 15 is a schematic diagram illustrating the operation of the slag scraping device in the mixed spraying system of the present utility model.
In the figure: 1. a guniting bridge; 2. a dust cover; 3. an arc-shaped sliding frame; 4. a guniting mechanical arm; 5. a guniting surface trowelling device; 6. a slag scraping device; 61. a bracket; 611. an arc-shaped track; 6111. a C-shaped groove; 612. a connecting column; 613. an arc-shaped rack; 62. a rotary trolley; 621. a frame; 622. a walking wheel; 623. a rotary power source; 624. a transmission gear; 625. a fixed rail; 626. an axial rack; 627. a drive motor; 628. a drive gear; 63. a scraper mechanism; 631. a drive cylinder; 632. a connecting frame; 633. a scraper; 634. a protective cover; 7. an automatic rebound material collecting device; 8. and (5) a tunnel.
Detailed Description
The features and capabilities of the present utility model are described in further detail below in connection with the examples.
The utility model improves the slag scraping device in the TBM mixed spraying system, the bracket of the slag scraping device comprises an arc-shaped track, the scraper is arranged on the rotary trolley, the rotary trolley is arranged on the arc-shaped track, the slag falling on the peripheral surface of the dust cover is scraped through the circumferential rotary motion of the scraper, and the rotary motion of the scraper is utilized to directly drive the slag to slide off from the dust cover, so that the operation of spraying water and flushing slag is omitted, and the water resource is saved.
Example 1 of a hybrid spray system in the present utility model:
as shown in fig. 1 and 2, the mixed spraying system comprises a spraying bridge 1, a dust cover 2 is arranged on the spraying bridge 1, an arc-shaped sliding frame 3 is arranged outside the dust cover 2 in a guiding manner along the axial direction, a spraying mechanical arm 4 and a spraying surface trowelling device 5 are arranged on the arc-shaped sliding frame 3, the spraying mechanical arm 4 is used for installing a spraying nozzle to spray concrete to the inner wall of a tunnel 8, the spraying surface trowelling device 5 is used for trowelling a spraying surface, and the two parts belong to the prior art, and the utility model is not described too much. In addition, the lower part of the gunite bridge 1 is provided with an automatic rebound material collecting device 7, which also belongs to the prior art, and reference is made in particular to patent document CN115807678A, which is no longer developed.
The hybrid spraying system of the present utility model further includes a slag scraping means 6, as shown in fig. 3 and 4, the slag scraping means 6 including a bracket 61 for being disposed outside the dust cover 2, a rotary trolley 62 mounted on the bracket 61, and a scraper mechanism 63 disposed on the rotary trolley 62. Wherein the bracket 61 comprises an arc-shaped rail 611 extending along an arc, the rotary trolley 62 is mounted on the arc-shaped rail 611, as one embodiment, the slag scraping device 6 is mounted on the arc-shaped carriage 3, specifically, the bracket 61 is fixed on the inner peripheral surface of the arc-shaped carriage 3, so that the bracket 61 is hidden inside the arc-shaped carriage 3. As shown in fig. 5 and 6, the support 61 is provided with a connection structure for connecting with the inner peripheral surface of the arc-shaped carriage 3, and in one embodiment, the connection structure is a plurality of connection posts 612 spaced along the outer peripheral surface of the arc-shaped rail 611, and in other embodiments, the connection structure may be directly the outer peripheral surface of the arc-shaped rail 611. Of course, in other embodiments, the support 61 may be fixed to the outer peripheral surface of the arcuate carriage 3, but it is also possible to provide the support 61 with a separate fixing frame, without being fixed to the arcuate carriage 3.
As shown in fig. 7, the rotary trolley 62 includes a frame 621 and a driving component for driving the frame 621 to perform circumferential rotation along the arc-shaped rail 611, as one embodiment, the frame 621 is provided with two travelling wheels 622, and as shown in fig. 6, the arc-shaped rail 611 is provided with two C-shaped grooves 6111 with opposite openings, and the travelling wheels 622 are embedded in the two C-shaped grooves 6111, so that a better limiting effect can be performed on the frame 621, and the stability and safety of movement are ensured. Of course, in other embodiments, the road wheels 622 may be replaced with sliders, and the notches of the arcuate rails may be oriented radially outward or the notches of the two arcuate rails may be disposed opposite each other.
The bracket 61 is provided with an arcuate rack 613 extending in an arc, and in one embodiment, as shown in fig. 6 and 7, the arcuate rack 613 is fixed to each of the connection posts 612 of the bracket 61, although in other embodiments, the arcuate rack 613 may be directly fixed to the arcuate track 611. The driving component comprises a rotary power source 623 and a transmission gear 624 in transmission connection with the output end of the rotary power source 623, wherein the transmission gear 624 is meshed with the arc-shaped rack 613, the rotary power source 623 can be a motor, a hydraulic motor or a pneumatic motor and is used for controlling the transmission gear 624 to rotate, and then under the meshing effect of the arc-shaped rack 613, the driving component drives the whole frame 621 to do circumferential rotation along the arc-shaped track 611, and further drives the scraper mechanism 63 to do circumferential rotation, so that the cleaning of slag falling on the outer circumferential surface of the dust cover 2 is realized. In other embodiments, the rotary trolley 62 may be driven in a circumferential motion without using a rack-and-pinion structure, for example, an independent driving motor may be configured for the road wheels, and an independent braking mechanism may be configured at the same time, so as to control the road wheels to freely walk and be fixed at a certain position.
In order to ensure the slag scraping effect and ensure a sufficient slag scraping range, the length of the arc-shaped track 611 in the circumferential direction is greater than or equal to the arc length of a quarter circle and less than or equal to the arc length of a half circle, and as a specific implementation mode, the arc length of the quarter circle, the arc length of a third circle or the arc length of the half circle can be used for avoiding the influence of the excessively short arc-shaped track on the slag scraping range, and meanwhile, the arc-shaped track is prevented from being too long to cause complex structure and large weight.
As shown in fig. 9, 10, 11 and 12, the scraper mechanism 63 includes a scraper 633, the scraper 633 is of a bucket tooth structure, and the scraper mechanism 63 further includes a driving mechanism for driving the scraper 633 to move in a radial direction of the arc-shaped rail 611 to adjust a spacing (2-5 mm) between the scraper 633 and an outer circumferential surface of the dust cover 2. As one embodiment, the driving mechanism comprises a driving cylinder 631 with a telescopic rod, the driving cylinder 631 can be a hydraulic cylinder, an air cylinder or an electric cylinder, and a protective cover 634 for covering the driving cylinder 631 is arranged on the frame, so that the clamping stagnation caused by the fact that rebound materials enter the driving cylinder 631 can be avoided. The expansion end of the expansion link faces radially outwards, and the expansion link is connected with the scraper through the connecting frame 632 penetrating through the protecting cover 634, so that the penetrating hole of the protecting cover 634, through which the connecting frame 632 penetrates, is a long hole extending along the radial direction of the arc track, and the smooth movement of the connecting frame 632 is prevented from being influenced. In other embodiments, the connecting frame may be omitted, for example, the telescopic end of the telescopic rod faces radially inward, the inner side of the protective cover is open, the telescopic rod directly penetrates through the opening to be connected with the scraper, the driving cylinder may be replaced by a gear rack structure, the position of the scraper is adjusted by moving the rack, the protective cover may be omitted no matter how the scraper is arranged, and the baffle plate may be arranged on the outer side of the whole scraper mechanism. In other embodiments, the drive mechanism may be omitted, and the spacing between the blade and the outer peripheral surface of the dust cap may be fixed and not adjustable.
Further, a moving frame is mounted on the frame 621 along the axial guiding movement of the circle where the arc-shaped track 611 is located, the driving mechanism is arranged on the moving frame, and a driving structure for driving the moving frame to axially move is arranged on the frame 621. As one embodiment, as shown in fig. 8, the moving frame is an axial rack 626 extending along the axial direction, a protecting cover 634 of the driving mechanism is fixed at the end of the axial rack 626, and as shown in fig. 7, a fixed rail 625 extending along the axial direction is fixedly arranged on the frame 621, the axial rack 626 is in guiding fit with the fixed rail 625, the driving structure comprises a driving motor 627 and a driving gear 628 in driving connection with the output end of the driving motor 627, and the driving gear 628 is meshed with the axial rack 626. The driving motor 627 may be an electric motor, a hydraulic motor or a pneumatic motor, and is used for controlling the driving gear 628 to rotate, so as to drive the axial rack 626 to move back and forth, thereby realizing the adjustment of the axial position of the scraper mechanism 63, as shown in fig. 13.
In other embodiments, the fixed track can be omitted, so that the axial rack is directly matched with the frame in a guiding way; of course, the movable frame can also be a separately arranged frame body, the axial rack is additionally fixed on the frame body, and the frame body is in guide fit with the fixed rail or is directly in guide fit with the frame. In other embodiments, the driving structure may not adopt a rack-and-pinion structure, for example, a telescopic driving mechanism, such as a cylinder, a hydraulic cylinder or an electric push rod, is arranged on the frame, and drives the scraper mechanism to axially move through the moving frame, so that the driving gear and the axial rack are omitted, the moving frame can be omitted, and the telescopic end of the telescopic driving mechanism is directly connected with the scraper mechanism. Of course, in other embodiments, no driving structure may be provided, and the doctor mechanism is only rotatable circumferentially and not axially movable.
The working process of the mixed spraying system in the utility model is as follows:
before the guniting operation, the slag collecting plate of the rebound material automatic collecting device 7 is unfolded. As shown in fig. 14, in the process of the guniting operation, if conditions such as overspray concrete or larger bulges and protrusions are generated, the guniting surface troweling device 5 can rotate along the circumference of the tunnel 8 under the remote control of a worker, and the scraped rebound materials fall on the dust cover 2 and the slag collecting plate of the rebound material automatic collecting device 7. At this time, the operator can operate the slag scraping device 6 to clean the surface of the dust cover from the rebound material (i.e. slag falling), as shown in fig. 12, first, control the driving cylinder 631 to adjust the distance between the scraper 633 and the arc surface of the dust cover 2 to a proper value, and then control the rotary power source 623 to drive the rotary trolley 62 to rotate, as shown in fig. 15, so that the scraper 633 can perform a circular motion along the arc surface of the dust cover 2. The slag scraping device can be synchronous with the guniting surface screeding device 5 or the guniting operation, and the rebound material falling on the surface of the dust cover 2 is not solidified at the moment, so that the rebound material falling on the surface of the dust cover 2 can be scraped in time by the rotary motion of the scraper 633, a water spraying system is not required to be configured to wet slag in advance, the structure of the mixed spraying system can be simplified, the water resource waste is reduced, the slag is scraped while the guniting is carried out, and the overall operation efficiency of the TBM can be improved. Furthermore, because the scraper 633 performs circumferential rotation, the scraped scum can be directly driven to slide from the dust cover 2, so that the operation of spraying water and flushing the scum is omitted, and water resources are saved.
After performing the circumferential scraping action for one stroke, the worker may operate the driving motor 627 to extend the scraper blade 633 a certain distance in the axial direction, as shown in fig. 13. The rotary scraping action is repeated, and the operation is circulated, so that the rebound material on the surface of the dust cover 2 can be scraped onto the slag collecting plate of the rebound material automatic collecting device 7 below the guniting bridge 1 while the guniting operation or the guniting surface troweling operation is carried out. For the rebound materials falling on the slag collecting plate, a high-pressure water spray head is arranged at the end part of the slag collecting plate, the rebound materials are flushed into a slag collecting hopper below the platform through high-pressure water flushing, and then the slag collecting hopper is transported to the flat car through a crane to be transported out of a hole.
The embodiment of the slag scraping device for the dust cover of the mixed spraying system comprises the following components: the specific structure of the slag scraping device for the dust cover of the mixed spraying system is the same as that of the slag scraping device in the embodiment of the mixed spraying system, and is not repeated here.
Examples of TBMs in the present utility model are: the TBM includes a hybrid spray system that is identical to the hybrid spray system of the previous embodiments and will not be repeated here.
The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.
Claims (12)
1. The utility model provides a mix sediment device of scraping for dust cover of spouting system, its characterized in that, including being used for setting up at TBM mix the outside support of dust cover of spouting system, the support includes along the arc track of pitch arc extension, installs rotatory dolly on the arc track, and rotatory dolly includes the frame and drives the frame and carry out the rotatory drive unit of circumference along the arc track, is provided with the scraper on the frame, and the scraper is used for scraping the sediment that falls on the dust cover outer peripheral face and drives the dross and slide from the dust cover when frame circumference rotates.
2. The slag scraping device for the dust cover of the mixed spraying system according to claim 1, wherein the frame is provided with a driving mechanism for driving the scraper to move along the radial direction of the arc-shaped track so as to adjust the interval between the scraper and the peripheral surface of the dust cover.
3. The slag scraping device for the dust cover of the mixed spraying system according to claim 2, wherein the driving mechanism comprises a driving cylinder with a telescopic rod, the frame is provided with a protective cover for covering the driving cylinder, the telescopic rod is connected with the scraper through a connecting frame penetrating through the protective cover, and a through hole in the protective cover for the connecting frame to penetrate through is a long hole extending along the radial direction of the arc-shaped track.
4. A slag scraping device for a dust cover of a mixed spraying system according to claim 2 or 3, wherein a moving frame is arranged on the frame in an axially guiding movement along a circle where the arc-shaped track is located, the driving mechanism is arranged on the moving frame, and a driving structure for driving the moving frame to axially move is arranged on the frame.
5. The dust wiper for a dust cover of a hybrid spray system of claim 4, wherein the moving frame includes an axially extending axial rack, and the drive structure includes a drive motor and a drive gear drivingly coupled to an output of the drive motor, the drive gear being in meshing engagement with the axial rack.
6. The slag scraping device for the dust cover of the mixed spraying system according to claim 5, wherein a fixed rail extending along the axial direction is fixedly arranged on the frame, and the axial rack is in guiding fit with the fixed rail.
7. A slag scraping device for a dust cover of a mixed spraying system according to any one of claims 1 to 3, wherein an arc-shaped rack extending along an arc is arranged on the bracket or the arc-shaped track, and the driving part comprises a rotary power source and a transmission gear in transmission connection with the output end of the rotary power source, and the transmission gear is meshed with the arc-shaped rack.
8. A slag scraping device for a dust cover of a mixed spraying system according to any one of claims 1 to 3, wherein a connecting structure for connecting with the inner peripheral surface of an arc-shaped carriage of a TBM mixed spraying system for installing a spraying mechanical arm is arranged on the bracket, so that the bracket is hidden in the arc-shaped carriage.
9. A slag scraping device for a dust cover of a mixed spraying system according to any one of claims 1 to 3, wherein the number of the arc-shaped tracks is two, the two arc-shaped tracks are provided with C-shaped grooves with opposite openings, and travelling wheels or sliding blocks respectively embedded in the two C-shaped grooves are arranged on the frame.
10. A slag scraping apparatus for a dust cap of a hybrid spray system according to any of claims 1 to 3, wherein the arcuate track has a length in the circumferential direction that is greater than or equal to the arc length of a quarter of a circumference and less than or equal to the arc length of a half of a circumference.
11. The mixed spraying system comprises a dust cover and an arc-shaped sliding frame which is arranged outside the dust cover along axial direction, wherein a spraying mechanical arm is arranged on the arc-shaped sliding frame, and the mixed spraying system further comprises a slag scraping device.
12. The TBM comprises a mixed spraying system, wherein the mixed spraying system comprises a dust cover and an arc-shaped sliding frame which is arranged outside the dust cover along axial direction movement, a spraying mechanical arm is arranged on the arc-shaped sliding frame, and the mixed spraying system further comprises a slag scraping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311513557.0A CN117328902A (en) | 2023-11-14 | 2023-11-14 | Slag scraping device for dust cover of mixed spraying system, mixed spraying system and TBM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311513557.0A CN117328902A (en) | 2023-11-14 | 2023-11-14 | Slag scraping device for dust cover of mixed spraying system, mixed spraying system and TBM |
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| Publication Number | Publication Date |
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| CN117328902A true CN117328902A (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311513557.0A Pending CN117328902A (en) | 2023-11-14 | 2023-11-14 | Slag scraping device for dust cover of mixed spraying system, mixed spraying system and TBM |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514021A (en) * | 2024-01-03 | 2024-02-06 | 陕西路桥集团有限公司 | Tunnel drilling equipment with cooling and flushing functions and drilling method |
-
2023
- 2023-11-14 CN CN202311513557.0A patent/CN117328902A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514021A (en) * | 2024-01-03 | 2024-02-06 | 陕西路桥集团有限公司 | Tunnel drilling equipment with cooling and flushing functions and drilling method |
| CN117514021B (en) * | 2024-01-03 | 2024-05-03 | 陕西路桥集团有限公司 | Tunnel drilling equipment with cooling and flushing functions and drilling method |
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