Rolling wet spraying machine

Abstract

The utility model relates to the field of tunnel primary lining guniting construction, in particular to a rolling wet spraying machine. The device comprises a connecting arm, a guniting mechanism, a rolling mechanism, a direction adjusting assembly and an engineering chassis, the guniting mechanism comprises a wet spray head, a second swing oil cylinder driving the wet spray head to rotate, a bent pipe allowing the second swing oil cylinder to be installed, a first swing oil cylinder driving the bent pipe to rotate and a first connecting base arranged on the connecting arm and used for installing the first swing oil cylinder. The rolling mechanism comprises roller cloth and a driving assembly for driving the roller cloth to operate so as to roll the slurry sprayed by the wet spray head on the surface of the tunnel; the direction adjusting assembly is arranged on the connecting arm, and the output end is connected with the driving assembly; and a mechanical arm for adjusting the position of the connecting arm is arranged on the engineering chassis. According to the utility model, the sprayed concrete slurry is rolled through the operation of the roller cloth, so that the construction flatness and the construction efficiency are ensured, and the waste of the slurry can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tunnel initial lining wet spraying construction, in particular to roll pressure wet spraying machine. BACKGROUND

[0002] In the current tunnel initial lining wet spraying construction process, the flatness of the initial support surface has a very important influence on the quality and safety of the tunnel engineering, and the current general construction method is: a large amount of concrete is sprayed first, and then the excess concrete is scraped off by using a scraper wrapped on the wet spraying head, so that the flatness of the initial support surface reaches the requirement.

[0003] However, the existing construction method has the following problems:

[0004] 1. The scraper is controlled by a remote controller, which requires higher skills of the operator of the wet spraying machine, and too much or too little scraping will affect the flatness of the initial support surface;

[0005] 2. The scraper needs to be manually wrapped on the wet spraying head, and this is done after the wet spraying machine completes the spraying of the rapid-setting concrete. If the wrapping time is too long, the concrete may solidify during this period, which will cause great difficulty in using the scraper later and reduce the work efficiency;

[0006] 3. The splashed concrete cannot be reused, resulting in a high loss rate and a large resource waste. INVENTION CONTENTS

[0007] The utility model aims at the problems in the background art and provides a roll pressure wet spraying machine that uses the operation of a roller to roll the sprayed concrete slurry, thereby ensuring the construction flatness and efficiency and reducing the waste of the slurry.

[0008] The technical scheme of the utility model provides a roll pressure wet spraying machine, which comprises a connecting arm, a wet spraying mechanism, a roll pressure mechanism, an azimuth adjusting assembly and an engineering chassis. The wet spraying mechanism comprises a wet spraying head, a second swing oil cylinder for driving the wet spraying head to rotate, an elbow pipe for mounting the second swing oil cylinder, a first swing oil cylinder for driving the elbow pipe to rotate, and a first connecting seat arranged on the connecting arm and used for mounting the first swing oil cylinder. The roll pressure mechanism comprises a roller and a driving assembly for driving the roller to operate so as to roll the slurry sprayed by the wet spraying head on the surface of the tunnel. The azimuth adjusting assembly is arranged on the connecting arm, and the output end is connected with the driving assembly. The engineering chassis is provided with a mechanical arm for adjusting the position of the connecting arm.

[0009] Preferably, the driving assembly comprises a bracket, a side plate arranged on the bracket, a tensioning roller assembly rotatably arranged on the side plate to tension the roller in a V shape, and a power device arranged on the side plate and driving the tensioning roller assembly to operate.

[0010] Preferably, the tensioning roller assembly comprises a driving roller rotatably arranged on the side plate, a tensioning roller, a driven roller, a tensioning assembly for tensioning the driven roller on the inner side of the roller cloth, and several transmission rollers, the driving roller and the driven roller are arranged at both ends of the inner side of the roller cloth, the tensioning roller is tensioned on the outer side of the roller cloth, and the transmission rollers are tensioned on the inner side of the roller cloth.

[0011] Preferably, the tensioning assembly comprises a U-shaped guide rail arranged on the side plate, a sliding block slidingly arranged on the guide rail, and a bolt rotatably arranged on the guide rail and threadedly connected with the sliding block, and the driven roller is rotatably arranged on the sliding block.

[0012] Preferably, the orientation adjusting assembly comprises a second connecting seat arranged on the connecting arm, and a third swing oil cylinder arranged on the second connecting seat and used for driving the support to rotate.

[0013] Preferably, the side plate is provided with a scanner for detecting the thickness and flatness of the slurry roller, a sensor for transmitting the detection data of the scanner, and a controller in communication connection with the sensor and in control connection with the power device.

[0014] Preferably, a film roll is rotatably arranged on the support, and a film is wound on the film roll, and the unwound film of the film roll is pressed on the slurry sprayed on the surface of the tunnel by the roller cloth roller.

[0015] Preferably, a film guide plate is arranged on the support, and the film guide plate has a film guide channel for the film to pass through.

[0016] Preferably, the mechanical arm comprises a support seat arranged on the engineering chassis, a slewing shaft rotatably arranged on the support seat, a slewing driving device arranged on the engineering chassis and driving the slewing shaft to rotate, a counterweight oil cylinder arranged at the end of the slewing shaft, a counterweight block arranged at the outer end of the counterweight oil cylinder, a first support plate and a second support plate arranged on the slewing shaft, a large arm rotatably arranged on the second support plate, an oil cylinder mounting seat arranged on the large arm, a first lifting oil cylinder rotatably connected with the first support plate and the oil cylinder mounting seat at both ends, a small arm rotatably arranged at the outer end of the large arm, a small arm tensioning plate rotatably arranged on the small arm, a second lifting oil cylinder rotatably connected with the large arm and the small arm tensioning plate at both ends, a telescopic arm rotatably arranged at the outer end of the small arm, and an adjusting oil cylinder rotatably connected with the small arm and the telescopic arm at both ends, and the connecting arm is arranged at the outer end of the telescopic arm.

[0017] Compared with the prior art, the utility model has the advantages of the following beneficial technical effects:

[0018] The utility model discloses the operation of roller cloth is used to the concrete slurry that sprays is rolled in, thereby guaranteeing the construction flatness, and the construction efficiency is high, and the concrete resilience rate is low, and the professional level requirement of operation hand is relatively reduced, can reduce the slurry waste, and save the cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structure schematic view of the roller-coated concrete of the embodiment of the present application;

[0020] Figure 2 A partial structure schematic view of the roller-coated concrete of the embodiment of the present application;

[0021] Figure 3 A distribution schematic view of the driving roller, the driven roller, the transmission roller, the tensioning roller and the film reel;

[0022] Figure 4 A partial structure schematic view of the tensioning principle of the driven roller;

[0023] Figure 5 A whole structure schematic view of the embodiment of the present application.

[0024] The figure mark: 1, wet spray head; 2, second swing oil cylinder; 3, elbow; 4, first swing oil cylinder; 5, first connecting seat; 6, connecting arm; 7, second connecting seat; 8, third swing oil cylinder; 9, support; 10, driving roller; 11, driven roller; 12, transmission roller; 13, tensioning roller; 14, side plate; 15, guide rail; 16, sliding block; 17, bolt; 18, film reel; 181, film; 19, film guide plate; 20, scanner; 21, sensor; 22, roller cloth; 23, engineering chassis; 24, support seat; 25, rotary shaft; 26, fixed table; 27, counterweight reinforcing plate; 28, counterweight oil cylinder; 29, counterweight block; 30, first support plate; 31, second support plate; 32, first lifting oil cylinder; 33, oil cylinder mounting seat; 34, large arm reinforcing plate; 35, large arm; 36, small arm; 37, small arm reinforcing plate; 38, second lifting oil cylinder; 39, telescopic arm; 40, adjusting oil cylinder. DETAILED DESCRIPTION

[0025] Embodiment one

[0026] As shown in the figure, Figures 1-5 The roller wet spraying machine presented by the embodiment comprises a connecting arm 6, a spraying mechanism, a roller pressing mechanism, an azimuth adjusting assembly and an engineering chassis 23.

[0027] The spraying mechanism comprises a wet spray head 1, a second swing oil cylinder 2 for driving the wet spray head 1 to rotate, an elbow 3 for mounting the second swing oil cylinder 2, a first swing oil cylinder 4 for driving the elbow 3 to rotate and a first connecting seat 5 arranged on the connecting arm 6 and used for mounting the first swing oil cylinder 4. The angle of the elbow 3 is between 90° and 135°. The wet spray head 1 is a hydraulic concrete wet spray head, which can spray rapid-setting concrete slurry. The azimuth of the wet spray head 1 is adjusted by the first swing oil cylinder 4 and the second swing oil cylinder 2, and the concrete slurry is sprayed into the inner wall of the tunnel at the target azimuth by the wet spray head 1.

[0028] The roller pressing mechanism comprises a roller cloth 22 and a driving assembly for driving the roller cloth 22 to run so as to press the concrete paste sprayed by the wet spraying head 1 on the surface of the tunnel.

[0029] As shown in Figures 2-4 , the tensioning roller assembly comprises a driving roller 10, a tensioning roller 13, a driven roller 11, a tensioning assembly for tensioning the driven roller 11 inside the roller cloth 22 and a plurality of transmission rollers 12. The roller cloth 22 is sleeved on the driving roller 10, the driven roller 11 and the transmission rollers 12 and is pressed from the outside by the tensioning roller 13. The driving roller 10 and the driven roller 11 are distributed at both ends inside the roller cloth 22, the tensioning roller 13 is tensioned on the outer side of the roller cloth 22 and the transmission rollers 12 are tensioned on the inner side of the roller cloth 22, so that the roller cloth 22 can be tensioned into a V shape and the running of the roller cloth 22 is realized by the plurality of rollers.

[0030] As shown in Figure 4 , the tensioning assembly comprises a U-shaped guide rail 15 arranged on the side plate 14, a sliding block 16 slidingly arranged on the guide rail 15 and a bolt 17 threadedly connected with the sliding block 16 and rotatably arranged on the guide rail 15, and the driven roller 11 is rotatably arranged on the sliding block 16. The tensioning degree of the roller cloth 22 can be adjusted by adjusting the bolt 17. When the bolt 17 is rotated, the sliding block 16 is driven to move by the bolt 17, the driven roller 11 is driven to move by the sliding block 16, so that the distance between the driving roller 10 and the driven roller 11 is adjusted, and then the tensioning degree of the roller cloth 22 is adjusted. When the roller cloth 22 is initially installed, the distance between the driven roller 11 and the driving roller 10 is adjusted to be small, so that the roller cloth 22 is easily sleeved, and then the roller cloth 22 is adjusted to be tight.

[0031] As shown in Figure 1 , the orientation adjusting assembly is arranged on the connecting arm 6 and the output end is connected with the driving assembly. The orientation adjusting assembly specifically comprises a second connecting seat 7 arranged on the connecting arm 6 and a third swing oil cylinder 8 arranged on the second connecting seat 7 and used for driving the bracket 9 to rotate. The bracket 9 is driven to rotate by the third swing oil cylinder 8, so as to adjust the orientation of the roller pressing mechanism, i.e. the orientation of the concrete paste pressed by the roller.

[0032] As shown in Figure 2As shown, the side plate 14 is provided with a scanner 20 for detecting the thickness and flatness of the slurry roller coating, a sensor 21 for transmitting the detection data of the scanner 20, and a controller in communication connection with the sensor 21 and connected with the power device control. The scanner 20 can detect the thickness and flatness of the slurry roller coating, and transmit the data to the controller in communication connection through the sensor 21, and the controller can control the rotating speed of the power device, so as to control the moving speed of the roller cloth 22. When the thickness and flatness of the slurry roller coating reach the target thickness and flatness, the whole roller wet spraying machine starts to move slowly, reducing the running speed, so as to prevent affecting the thickness and flatness of the slurry which has been rolled.

[0033] The engineering chassis 23 is provided with a mechanical arm for adjusting the position of the connecting arm 6. The engineering chassis 23 includes but is not limited to a wheeled chassis or a tracked chassis. The mechanical arm includes a support seat 24 provided on the engineering chassis 23, a slewing shaft 25 rotatably provided on the support seat 24, a slewing driving device provided on the engineering chassis 23 and driving the slewing shaft 25 to rotate, a counterweight oil cylinder 28 provided at the end of the slewing shaft 25, a counterweight block 29 provided at the outer end of the counterweight oil cylinder 28, a first support plate 30 and a second support plate 31 provided on the slewing shaft 25, a large arm 35 rotatably provided on the second support plate 31, an oil cylinder mounting seat 33 provided on the large arm 35, a first lifting oil cylinder 32 having two ends rotatably connected with the first support plate 30 and the oil cylinder mounting seat 33, a small arm 36 rotatably provided at the outer end of the large arm 35, a small arm tension plate 37 rotatably provided on the small arm 36, a second lifting oil cylinder 38 having two ends rotatably connected with the large arm 35 and the small arm tension plate 37, a telescopic arm 39 rotatably provided at the outer end of the small arm 36, and an adjusting oil cylinder 40 having two ends rotatably connected with the small arm 36 and the telescopic arm 39. The height and orientation of the spraying mechanism and the rolling mechanism are adjusted by the extension and contraction of the first lifting oil cylinder 32, the second lifting oil cylinder 38 and the adjusting oil cylinder 40. The slewing shaft 25 is provided with a fixing table 26, and the fixing table 26 and the counterweight oil cylinder 28 are connected with a counterweight tension plate 27. The large arm 35 is provided with a large arm tension plate 34 rotatably connected with the second support plate 31. The tension plates are used to improve the structural stability. The connecting arm 6 is provided at the outer end of the telescopic arm 39, and the adjustment of the spraying mechanism and the rolling mechanism is realized by adjusting the connecting arm 6.

[0034] The telescopic arm 39 includes a sliding cylinder, a telescopic cylinder and a telescopic oil cylinder. The telescopic oil cylinder is arranged in the sliding cylinder, drives the telescopic cylinder to slide on the sliding cylinder, adjusts the length of the telescopic arm 39, the sliding cylinder is rotatably arranged on the small arm 36, and the telescopic cylinder is connected with the connecting arm 6.

[0035] The rotary driving device can adopt a hydraulic motor, which can drive the rotary shaft 25 to rotate, and adjust the rotation of the whole mechanical arm, the spraying mechanism and the rolling mechanism. When the whole mechanical arm is in an inclined state, the counterweight oil cylinder 28 extends, the counterweight block 29 is pushed forward, the distance between the counterweight block 29 and the rotary shaft 25 is increased, and the torque of the rotary driving device is increased by the lever principle.

[0036] The construction method of the above-mentioned rolling wet spraying machine comprises the following steps:

[0037] S1, moving the rolling mechanism to a target rolling position by the mechanical arm, the connecting arm 6 is installed at the outermost end of the mechanical arm, and the orientation of the roller cloth 22 is adjusted by the orientation adjusting assembly;

[0038] S2, adjusting the orientation of the wet spraying head 1 by the first swing oil cylinder 4 and the second swing oil cylinder 2;

[0039] S3, spraying the concrete slurry to the tunnel surface by the wet spraying head 1, and rolling the concrete slurry by the roller cloth 22 in the rolling mechanism, which can roll the slurry flat and will not waste the slurry, the rotary driving device drives the rotary shaft 25 to rotate, the large arm 35, the small arm 36 and the telescopic arm 39 rotate, the connecting arm 6, the spraying mechanism and the rolling mechanism all rotate around the rotary shaft 25, and the spraying and rolling construction are carried out on the arc-shaped inner wall of the tunnel;

[0040] S4, detecting the thickness and flatness of the rolled concrete slurry by the scanner 20, and transmitting the detection data to the controller by the sensor 21, when the thickness and flatness of the concrete slurry reach the target thickness and flatness, reducing the moving speed of the connecting arm 6 and the operating speed of the roller cloth 22.

[0041] In this embodiment, the sprayed concrete slurry is rolled by the operation of the roller cloth 22, so as to ensure the construction flatness and construction efficiency, and the professional level requirement of the operator is relatively reduced. When wet spraying, the excess concrete slurry does not need to be scraped, so as to reduce the waste of slurry and save the cost. The concrete slurry is rolled by the rolling mechanism, the construction efficiency is high, and the concrete rebound rate is low.

[0042] Example two

[0043] As Figures 1-5As shown, compared with the first embodiment, in the present embodiment, the film winding drum 18 is rotatably arranged on the support 9, and the film 181 is wound on the film winding drum 18, and the film 181 unwound from the film winding drum 18 is rolled by the roller cloth 22 on the slurry sprayed on the tunnel surface by the wet spraying head 1. In use, the free end of the film 181 is lapped on the roller cloth 22, and the roller cloth 22 presses the film 181 on the slurry, and when the roller cloth 22 rotates, the film winding drum 18 is driven to rotate, the film 181 on the film winding drum 18 is pulled out, and the slurry is rolled through the film 181, and the film 181 is attached to the solidified slurry for protection. At the same time, the film 181 separates the roller cloth 22 and the slurry, and can also protect the roller cloth 22, reduce the wear of the roller cloth 22, and prolong the service life of the roller cloth 22.

[0044] Further, the film guide plate 19 is arranged on the support 9, and the film guide plate 19 has a film guide channel for the film 181 to pass through, so as to guide the unwinding process of the film 181.

[0045] In the present embodiment, the film 181 is unwound to achieve the protection of the slurry and the wear protection of the roller cloth 22. After the construction is completed, the film 181 is removed.

[0046] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A roller press wet spraying machine, characterized in that, include: Connecting arm (6); The shotcrete mechanism includes a wet nozzle (1), a second swing cylinder (2) for driving the wet nozzle (1) to rotate, a bend (3) for mounting the second swing cylinder (2), a first swing cylinder (4) for driving the bend (3) to rotate, and a first connecting seat (5) disposed on the connecting arm (6) for mounting the first swing cylinder (4). The rolling mechanism includes a roller cloth (22) and a drive assembly that drives the roller cloth (22) to roll the slurry sprayed from the wet nozzle (1) onto the tunnel surface. An orientation adjustment component is mounted on the connecting arm (6) and its output is connected to the drive component. The engineering chassis (23) is equipped with a robotic arm that adjusts the position of the connecting arm (6).

2. The roller press wet spraying machine according to claim 1, characterized in that, The drive assembly includes a bracket (9), a side plate (14) disposed on the bracket (9), a tensioning roller assembly rotatably disposed on the side plate (14) to stretch the cloth (22) in a V-shape, and a power unit disposed on the side plate (14) and driving the tensioning roller assembly.

3. The roller press wet spraying machine according to claim 2, characterized in that, The tensioning roller assembly includes a drive roller (10), a tensioning roller (13), a driven roller (11), a tensioning assembly that supports the driven roller (11) on the inner side of the roller cloth (22), and several drive rollers (12). The drive roller (10) and the driven roller (11) are distributed at both ends of the inner side of the roller cloth (22), the tensioning roller (13) is tensioned on the outer side of the roller cloth (22), and the drive rollers (12) are tensioned on the inner side of the roller cloth (22).

4. The roller press wet spraying machine according to claim 3, characterized in that, The tensioning assembly includes a U-shaped guide rail (15) disposed on the side plate (14), a slider (16) slidably disposed on the guide rail (15), and a bolt (17) rotatably disposed on the guide rail (15) and threadedly connected to the slider (16). The driven roller (11) is rotatably disposed on the slider (16).

5. The roller press wet spraying machine according to claim 2, characterized in that, The orientation adjustment assembly includes a second connecting seat (7) disposed on the connecting arm (6) and a third swing cylinder (8) disposed on the second connecting seat (7) for driving the bracket (9) to rotate.

6. The roller press wet spraying machine according to claim 2, characterized in that, The side plate (14) is equipped with a scanner (20) for detecting the thickness and flatness of the slurry roller coating, a sensor (21) for transmitting the detection data of the scanner (20), and a controller that is connected to the sensor (21) and controlled by the power unit.

7. The roller press wet spraying machine according to claim 2, characterized in that, A film roll (18) is rotatably mounted on the support (9), and a film (181) is wound on the film roll (18). The film (181) unwound from the film roll (18) is pressed by the roller cloth (22) onto the slurry sprayed onto the tunnel surface by the wet nozzle (1).

8. The roller press wet spraying machine according to claim 7, characterized in that, A guide plate (19) is provided on the support (9), and the guide plate (19) has a guide channel for the thin film (181) to pass through.

9. The roller press wet spraying machine according to claim 1, characterized in that, The robotic arm includes a support base (24) mounted on an engineering chassis (23), a rotary shaft (25) rotatably mounted on the support base (24), a rotary drive device mounted on the engineering chassis (23) and driving the rotary shaft (25) to rotate, a counterweight cylinder (28) mounted at the end of the rotary shaft (25), a counterweight block (29) mounted at the outer end of the counterweight cylinder (28), a first support plate (30) and a second support plate (31) mounted on the rotary shaft (25), a boom (35) rotatably mounted on the second support plate (31), and a cylinder mounting base (33) mounted on the boom (35). The first lifting cylinder (32) is rotatably connected to the first support plate (30) and the cylinder mounting seat (33) at both ends, the forearm (36) is rotatably set at the outer end of the boom (35), the forearm bracing plate (37) is rotatably set on the forearm (36), the second lifting cylinder (38) is rotatably connected to the boom (35) and the forearm bracing plate (37) at both ends, the telescopic arm (39) is rotatably set at the outer end of the forearm (36), and the adjusting cylinder (40) is rotatably connected to the forearm (36) and the telescopic arm (39) at both ends. The connecting arm (6) is set at the outer end of the telescopic arm (39).

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