CN115749856A - Device for spraying tunnel lining - Google Patents
Device for spraying tunnel lining Download PDFInfo
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- CN115749856A CN115749856A CN202211525917.4A CN202211525917A CN115749856A CN 115749856 A CN115749856 A CN 115749856A CN 202211525917 A CN202211525917 A CN 202211525917A CN 115749856 A CN115749856 A CN 115749856A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a device for spraying tunnel lining, which adopts a crawler-type moving device as a walking device, can adapt to various terrains in tunnels compared with the prior wheeled vehicle, avoids the problem that the vehicle is difficult to move due to muddy inside the tunnel, can achieve omnibearing angle spraying by combining an oil extraction oil cylinder and a horizontal turntable to adjust the coupling adjustment of the horizontal angle and the pitching angle of a spraying head assembly, greatly improves the coverage rate of spraying lining of the medium and small cross-section tunnels, then a base is connected with the crawler-type moving device through a rotating device to realize the large-angle adjustment of the spraying angle, and finally, a cable reel is arranged on the base, and a cable with certain length is wound on the cable reel, thereby effectively utilizing the power provided for the spraying device by electric facilities in the tunnel, and improving the spraying efficiency of the spraying device.
Description
Technical Field
The invention relates to the technical field of wet blasting machines, in particular to a device for blasting tunnel lining.
Background
At present, in the construction of tunnel engineering in China, the wet spraying technology is often used for spraying tunnel lining, compressed air or other power is utilized according to the principle of the technology, the mixture matched according to a certain proportion is conveyed through a pipeline and sprayed on a sprayed surface at a high speed for condensation and hardening, so that a concrete support layer is formed, most of devices for spraying the tunnel lining comprise a moving vehicle and a spray head fixed on the moving vehicle, the spray angle of the spray head is controlled by adjusting the direction of the moving vehicle, the flexibility of the regulation and control of the spray angle of the moving vehicle in a tunnel is poor, dead angles exist in spraying, the spraying is inconvenient, timely construction cannot be achieved, and the working efficiency is greatly reduced. And most of devices have single spray heads, so that the requirement of the coverage rate of the spray lining of the small-section tunnel cannot be met, and great inconvenience is brought to constructors.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a device for spraying tunnel lining, which improves the efficiency of spraying lining of the tunnel.
The invention is realized by the following technical scheme:
a device for spraying tunnel lining comprises a spraying device, a spraying head assembly, an arm support, a horizontal turntable, a walking device, a chassis and a rotating device;
the chassis is arranged at the top of the walking device through a rotating device, and the rotating device is used for driving the chassis to horizontally rotate all around; the spraying device is arranged at the top of the chassis, the horizontal turntable is arranged on the chassis and is positioned at one end of the spraying device, the lower end of the arm support is connected with the horizontal turntable, the spraying head assembly is arranged at the upper end of the arm support and is connected with the spraying device, and the arm support and the horizontal turntable are used for adjusting the horizontal and pitching spraying angles of the spraying head assembly.
Preferably, the arm support comprises an oil cylinder, a fixed arm and a telescopic arm;
the lower end of the vertical fixed arm is connected with the horizontal turntable, the telescopic arm is arranged at the upper end of the fixed arm, one end of the telescopic arm is hinged to the upper end of the fixed arm, the spray head assembly is connected with the other end of the telescopic arm, the lower end of the cylinder body of the oil cylinder is hinged to the lower end of the fixed arm through a hinged element, and the piston rod of the oil cylinder is connected with the middle of the telescopic arm.
Preferably, the injection head assembly comprises three injection heads, an injection support is arranged at the end part of the arm support, the fixed end of each injection head is rotatably connected with the injection support through a rotating shaft, and the three injection heads are respectively connected with outlets of discharge pipelines of the injection device through branch pipelines.
Preferably, the horizontal turntable comprises a base, a rotating shaft and a steering arm;
the base is fixed on the chassis, the lower end of the rotating shaft is rotatably arranged in the base, the axis of the steering arm is perpendicular to the axis of the rotating shaft, one end of the steering arm is fixedly connected with the upper end of the rotating shaft, the lower end of the fixed arm is fixedly connected with the other end of the steering arm, and the steering arm is connected with the driving device through a gear set.
Preferably, the gear set comprises an input gear and an output gear;
the input gear sleeve is arranged on the rotating shaft and positioned at the top of the base, the input gear sleeve is arranged on the steering arm, the input gear and the output gear are meshed with each other, and the input gear and the output gear form a speed reduction gear set.
Preferably, the input gear and the output gear are bevel gear sets.
Preferably, the rotating device comprises a fixed column and a rotating gear sleeve;
the lower end of the fixed column is fixed to the top of a fixed base of the walking device, the rotary gear sleeve is sleeved on the fixed column, the base is fixedly connected with the rotary gear sleeve and located on the top of the fixed base, the rotary gear sleeve is meshed with the driving motor, and the driving motor is fixed to the fixed base of the walking device.
Preferably, the rotary gear sleeve comprises a sleeve and a gear fixedly sleeved at the lower end of the outer wall of the sleeve;
the gear is meshed with an output shaft of the driving motor, the sleeve is embedded in the center of the base and fixedly connected with the base, and the sleeve is sleeved on the fixing column and can rotate.
Preferably, the base is further provided with a cable reel on which a cable of a certain length is wound, the cable being used for powering the spraying device.
Preferably, the spraying device is a concrete sprayer.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a device for spraying tunnel lining, which comprises a walking device, wherein a base is connected with the walking device through a rotating device, an arm support, a spraying device and a horizontal turntable are arranged on the base, the arm support can adjust the spraying pitch angle of a spraying head assembly, the horizontal turntable adjusts the spraying horizontal angle of the spraying head assembly, the omnibearing angle spraying of the spraying head assembly is realized through the coupling of the pitch angle and the horizontal angle, the coverage rate of the middle and small section tunnel spraying lining is greatly improved, the problems that the spraying angle is adjusted through a vehicle and the spraying angle is poor in flexibility in the existing device are solved, secondly, the rotating device drives a chassis to rotate by a large angle of 360 degrees, the quick adjustment of the large angle is realized, the lining is conveniently sprayed for the second time, and the spraying efficiency of concrete slurry is greatly improved.
Furthermore, the oil cylinder and the horizontal rotary table are combined to adjust the coupling adjustment of the horizontal angle and the pitching angle of the spray head assembly, the structure is simple, the operation is stable, and the service life and the operation stability of the device are greatly improved.
Furthermore, a cable reel is arranged on the base, a cable with a certain length is wound on the cable reel, and after the device enters the tunnel, the cable is pulled out and is respectively connected with the injection device and the power supply, so that power provided for the injection device by electric facilities in the tunnel is effectively utilized, and the injection efficiency of the injection device is improved.
Furthermore, the crawler-type moving device is adopted as the walking device, compared with the existing wheeled vehicle, the crawler-type moving device can adapt to various terrains in the tunnel, and the problem that the vehicle is difficult to move due to the fact that the inside of the tunnel is muddy is avoided.
Furthermore, a plurality of injection heads are adopted, the injection area is firstly increased, the injection efficiency is improved, and meanwhile, the injection heads can independently rotate, so that the injection angle can be conveniently adjusted.
Drawings
FIG. 1 is a schematic view showing the construction of an apparatus for blasting a tunnel lining according to the present invention;
fig. 2 is a front view of the arm support of the present invention;
FIG. 3 is a schematic structural view of a spray head assembly of the present invention; (ii) a
FIG. 4 is a schematic view of the horizontal rotation of the spray head of the present invention;
FIG. 5 is a detail view of the spray device of the present invention;
fig. 6 is a top view of the rotary device of the present invention.
In the figure: 1. a cable reel; 2. an injection device; 3. a spray head assembly; 4. a boom; 5. a horizontal turntable; 6. a traveling device; 7. a chassis; 8. a rotating device; 9. an oil cylinder; 10. a fixed arm; 11. a telescopic arm; 12. an injector head; 13. a discharge pipeline; 17. fixing a column; 18. and (4) rotating the gear sleeve.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
Referring to fig. 1, an apparatus for spraying tunnel lining includes a cable reel 1, a spraying apparatus 2, a spraying head assembly 3, an arm support 4, a horizontal turntable 5, a traveling apparatus 6, a chassis 7, and a rotating apparatus 8.
The base plate 7 is arranged at the top of the walking device 6 through the rotating device 8, the spraying device 2 is arranged at the top of the base plate 7, the cable reel 1 is arranged at one end of the spraying device 2, the horizontal turntable 5 is arranged at the other end of the spraying device, the lower end of the arm support 4 is connected with the horizontal turntable 5, and the spraying head assembly 3 is arranged at the upper end of the arm support and is connected with the spraying device 2.
The cable reel 1 and the horizontal rotary table 5 are respectively arranged at two ends of the base, the cable reel 1 is rotatably installed in front of the spraying device 2 according to the advancing direction of the walking device 6, 100m of cable is wound on the cable reel and can be connected with a tunnel power supply box at any time, the working efficiency is improved, the horizontal rotary table 5 is installed at the rear end of the spraying device 2, the lower end of the arm support 4 is connected with the horizontal rotary table 5, and the rotating center of the cable reel 1 and the spraying device 2 are kept on the same horizontal line.
Referring to fig. 2, the arm support 4 includes an oil cylinder 9, a fixed arm 10 and a telescopic arm 11, the fixed arm 10 is vertically disposed and the lower end thereof is connected to the horizontal turntable 5, the telescopic arm is horizontally disposed at the upper end of the fixed arm, the end of the telescopic arm 11 is hinged to the upper end of the fixed arm 10, the front end of the telescopic arm 11 extends to the front end of the traveling device 6, the spraying head assembly 3 is disposed at the front end of the telescopic arm 11, the lower end of the cylinder body of the oil cylinder 9 is hinged to the lower end of the fixed arm 10 through a hinge, and the piston rod of the oil cylinder 9 is connected to the middle of the telescopic arm 11. The telescopic arm 11 is a two-stage telescopic oil cylinder, the injection head assembly 3 is installed at the end part of a piston rod of the two-stage telescopic oil cylinder, when the spraying pitch angle of the injection head assembly 3 needs to be adjusted, the inclination angle of the telescopic arm 11 is controlled through the extension length controlled by the oil cylinder 9, the adjustment of the concrete spraying angle can be realized, the telescopic arm has two-stage telescopic function, and the telescopic length needs to meet the requirement of the construction depth of a small-section tunnel of 2 m.
The horizontal turntable 5 comprises a base 55, a rotating shaft 52 and a steering arm 53, wherein the base 55 is fixed at the bottom of the tail end of the chassis 7, a ball bearing is embedded in the center of the base 55, the lower end of the rotating shaft 52 is sleeved in a shaft hole of the ball bearing, the axis of the steering arm 53 is perpendicular to the axis of the rotating shaft, one end of the steering arm 53 is fixedly connected with the upper end of the rotating shaft 52, the other end of the steering arm extends towards the front end of the walking device, the lower end of the fixed arm 10 is fixedly connected with the other end of the steering arm 53, and the steering arm horizontally rotates through a gear set and a driving device.
The gear set comprises an input gear 54 and an output gear 51, the input gear 54 is sleeved on the rotating shaft and is positioned at the top of the base, the input gear 54 is sleeved on the steering arm, the input gear 54 is meshed with the output gear 51, the driving device is a motor, the motor is fixed on the chassis, the driving device is not shown in the figure, a driving gear is arranged on an output shaft of the motor, the driving gear is meshed with the input gear 54, when the steering device is turned, the motor drives the gear to rotate, the driving gear drives the input gear 54 to rotate, the input gear 54 drives the output gear 51 to rotate, and therefore the steering arm is rotated.
In the present embodiment, the driving gear has a diameter smaller than that of the input gear 54 to form a reduction gear set, and a reduction gear set is formed between the input gear 54 and the output gear 51 to control the steering speed of the fixing arm 10 through two-stage reduction. The input gear 54 and the output gear 51 are bevel gears fitted to each other, and the input gear 54 may be a face gear.
Referring to fig. 5, the injection apparatus 2 is a concrete sprayer, which utilizes compressed air to mix concrete material with a certain gradation and water-cement ratio, and the concrete material is conveyed to a sprayer head assembly through a conveying pipe and sprayed out at a high speed, thereby forming a concrete supporting layer on the surface of a tunnel, a motor of the concrete sprayer passes through a coupler to drive a speed reducer, a conveying shaft of the speed reducer drives a rotor to rotate, and then drives a kick-out device on a hopper to rotate, the concrete mixture enters the hopper and falls into a rotating rotor material cavity, after the rotor rotates 180 degrees, the compressed air is communicated with a material cavity air inlet, and under the action of compressed air, the material is conveyed to the sprayer head assembly through a discharging rotary head and a discharging pipeline 13 and sprayed out.
Referring to fig. 1-4, the spray head assembly 3 comprises three spray heads 12, a spray support is arranged at the end part of the arm support, the spray heads 12 are arranged at the left end of the arm support through the spray support, the three spray heads are distributed circumferentially, an included angle between every two adjacent spray heads is 90 degrees, the three spray heads are respectively connected with outlets of the discharging pipelines through branch pipelines, the fixed ends of the spray heads are rotatably connected with the spray support through rotating shafts, all-directional angle spraying can be achieved, and the coverage rate of spraying the lining in the medium and small section tunnels is greatly improved.
The walking device 6 is a crawler-type moving device, a crawler is wound on the driving wheel, the crawler is in contact with the ground, and the driving wheel is not in contact with the ground. When the motor drives the driving wheel to rotate, the driving wheel continuously rolls up the crawler belt from the rear part through the meshing between the gear teeth on the driving wheel and the crawler belt chain under the action of the driving torque of the speed reducer. The ground engaging portion of the track imparts a rearward force to the ground which in turn imparts a forward reaction force to the track, which reaction force is the driving force that propels the machine forward. When the driving force is enough to overcome the walking resistance, the thrust wheels roll forwards on the upper surfaces of the tracks, so that the machine runs forwards, and the front and rear tracks of the whole machine track walking mechanism can independently turn, so that the turning radius is smaller, and the machine is convenient to use in a tunnel.
Referring to fig. 6, the rotating device 8 comprises a fixed column 17 and a rotating gear sleeve 18, a fixed base is formed at the top of the walking device, the lower end of the fixed column 17 is fixed at the center of the fixed base of the walking device, the rotating gear sleeve 18 is sleeved on the fixed column 17, the rotating gear sleeve 18 comprises a sleeve and a gear fixedly sleeved on the lower end of the outer wall of the sleeve, the sleeve is embedded in the center of the base and fixedly connected with the base, meanwhile, the base is located at the top of the fixed base, the gear is meshed with an output shaft of a driving motor, the driving motor is fixed on the fixed base of the walking device, the driving motor drives the base to rotate through the rotating gear sleeve, the upper injection device can form 360-degree large-angle rotation, and no dead angle coverage injection is realized.
In this embodiment, the cylinder 9, the telescopic boom 11, the spraying device 2 and the traveling device are connected with a controller, the controller controls the operation of each component, the controller is connected with a terminal, and the operation state of the device for spraying the tunnel lining is realized by controlling the terminal.
The method of using the apparatus for blasting a tunnel lining according to the present invention will be explained in detail.
When the device is used, concrete is poured into the spraying device 2, the spraying device 2 sends the concrete to the spraying head assembly 3 through the conveying pipeline under the action of pressure, the spraying head assembly 3 sprays the concrete to the surface of the lining, a support layer is formed after solidification, the horizontal spraying angle is adjusted through the horizontal turntable 5 in the spraying process, the horizontal turntable 5 can drive the arm support to horizontally rotate, the horizontal rotating angle is-45-180 degrees, meanwhile, the spraying pitch angle is adjusted through controlling the extension length of a piston of the oil cylinder, the spraying range is effectively controlled through the coupling of the horizontal angle and the pitch angle, the spraying of the tunnel lining is realized, and in the spraying process, the spraying angle can be controlled through the control terminal, so that the spraying azimuth can be accurately positioned; when the jet angle and the depth need to be adjusted, the pitching of the telescopic arm is controlled through the oil cylinder, the telescopic arm has two-stage telescopic function, and the telescopic length can meet the requirement of the construction depth of the small-section tunnel of 2 m; when the concrete reaches the injection head assembly 3, the injection requirement can be met by adjusting the rotation angle of the injection head. When secondary injection is needed or concrete is supplemented to the omitted area, the whole base can be horizontally rotated by 180 degrees through the rotating device, then secondary injection is carried out, the injection efficiency can be greatly improved, and the coverage rate requirement of tunnel injection lining is met.
The invention provides a device for spraying tunnel lining, which adopts a crawler-type moving device as a walking device, can adapt to various terrains in tunnels compared with the prior wheeled vehicle, avoids the problem that the vehicle is difficult to move due to muddy inside the tunnel, adopts a cylinder and a horizontal turntable to combine with the coupling adjustment of the horizontal angle and the pitching angle of an adjusting spraying head assembly, can achieve omnibearing angle spraying, greatly improves the coverage rate of spraying lining of the medium and small cross-section tunnels, then a base is connected with the crawler-type moving device through a rotating device to realize the large-angle adjustment of the spraying angle, and finally, a cable reel is arranged on the base, and a cable with a certain length is wound on the cable reel, thereby effectively utilizing the power provided for the spraying device by electric facilities in the tunnel, and improving the spraying efficiency of the spraying device.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A device for spraying a tunnel lining is characterized by comprising a spraying device (2), a spraying head assembly (3), an arm support (4), a horizontal turntable (5), a walking device (6), a chassis (7) and a rotating device (8);
the chassis (7) is arranged at the top of the walking device (6) through a rotating device (8), and the rotating device (8) is used for driving the chassis to horizontally rotate all around; the spraying device (2) is installed at the top of the chassis (7), the horizontal turntable (5) is installed on the chassis and located at one end of the spraying device (2), the lower end of the arm support (4) is connected with the horizontal turntable (5), the spraying head assembly (3) is installed at the upper end of the arm support and connected with the spraying device (2), and the arm support (4) and the horizontal turntable (5) are used for adjusting the horizontal and pitching spraying angles of the spraying head assembly (3).
2. The apparatus for injection of a tunnel lining according to claim 1, characterized in that the boom (4) comprises a cylinder (9), a fixed arm (10) and a telescopic arm (11);
the vertical lower extreme that sets up of fixed arm (10) is connected with horizontal turntable (5), and flexible arm setting is in the upper end of fixed arm, and the one end of flexible arm (11) is articulated with the upper end of fixed arm (10), and injector head subassembly (3) are connected with the other end of flexible arm (11), and the cylinder body lower extreme of hydro-cylinder (9) passes through the articulated elements and articulates with the lower extreme of fixed arm (10), and the piston rod of hydro-cylinder (9) is connected with the middle part of flexible arm (11).
3. A device for spraying a tunnel lining as claimed in claim 1, characterised in that the spray head assembly (3) comprises three spray heads (12), a spray support is provided at the end of the arm support, the fixed end of the spray heads is rotatably connected with the spray support through a rotating shaft, and the three spray heads are respectively connected with the outlet of the discharge pipe of the spray device through branch pipes.
4. A device for injection tunnel lining according to claim 1, characterised in that said horizontal carousel (5) comprises a base (55), a rotation shaft (52) and a steering arm (53);
the base (55) is fixed on the chassis (7), the lower end of the rotating shaft (52) is rotatably arranged in the base (55), the axis of the steering arm (53) is perpendicular to the axis of the rotating shaft, one end of the steering arm (53) is fixedly connected with the upper end of the rotating shaft (52), the lower end of the fixed arm (10) is fixedly connected with the other end of the steering arm (53), and the steering arm is connected with the driving device through a gear set.
5. An apparatus for injection tunnel lining according to claim 4, characterised in that the gear train comprises an input gear (54) and an output gear (51);
the input gear (54) is sleeved on the rotating shaft and located at the top of the base, the input gear (54) is sleeved on the steering arm, the input gear (54) is meshed with the output gear (51), and the input gear (54) and the output gear (51) form a reduction gear set.
6. A device for injection tunnel lining according to claim 5, characterised in that the input gear (54) and the output gear (51) are bevel gear sets.
7. A device for injection of a tunnel lining according to claim 1, characterised in that the rotation means (8) comprise a fixed column (17) and a rotating gear sleeve (18);
the lower end of the fixing column (17) is fixed to the top of a fixing base of the walking device, a rotating gear sleeve (18) is sleeved on the fixing column (17), the base is fixedly connected with the rotating gear sleeve (18) and located at the top of the fixing base, the rotating gear sleeve (18) is meshed with a driving motor, and the driving motor is fixed to the fixing base of the walking device.
8. The apparatus for injection tunnel lining as claimed in claim 7, characterized in that said rotary gear sleeve (18) comprises a sleeve and a gear fixedly secured to the lower end of its outer wall;
the gear is meshed with an output shaft of the driving motor, the sleeve is embedded in the center of the base and fixedly connected with the center of the base, and the sleeve is sleeved on the fixing column (17) and can rotate.
9. A device for injection tunnel lining according to claim 1, characterized in that on said base there is further provided a cable reel (1) on which a certain length of cable is wound for powering the injection device.
10. A device for injection tunnel lining according to claim 1, characterised in that the injection device (2) is a concrete injection machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211525917.4A CN115749856A (en) | 2022-11-30 | 2022-11-30 | Device for spraying tunnel lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211525917.4A CN115749856A (en) | 2022-11-30 | 2022-11-30 | Device for spraying tunnel lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115749856A true CN115749856A (en) | 2023-03-07 |
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ID=85341777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211525917.4A Pending CN115749856A (en) | 2022-11-30 | 2022-11-30 | Device for spraying tunnel lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115749856A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888928A (en) * | 2024-03-11 | 2024-04-16 | 中铁科学研究院有限公司 | Tunnel supporting and spraying device |
-
2022
- 2022-11-30 CN CN202211525917.4A patent/CN115749856A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888928A (en) * | 2024-03-11 | 2024-04-16 | 中铁科学研究院有限公司 | Tunnel supporting and spraying device |
| CN117888928B (en) * | 2024-03-11 | 2024-05-14 | 中铁科学研究院有限公司 | Tunnel supporting and spraying device |
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