A tunnel spray device, work vehicle, and spray method

Abstract

The application provides a tunnel spraying device, a working vehicle and a spraying method, relates to the technical field of tunnel construction, and comprises a mounting plate frame used for moving along the extension direction of a tunnel, a spraying mechanism arranged at the middle part of the mounting plate frame, the spraying mechanism comprising a spraying frame used for rotating along the circumference of the tunnel, a wall mortar treatment mechanism arranged at the front side of the mounting plate frame, the wall mortar treatment mechanism comprising a plurality of brushes arranged along the circumference of the tunnel and abutting against the circumferential wall of the tunnel, the spraying frame driving the brushes to vibrate when rotating, and a coating stabilizing mechanism arranged at the rear side of the mounting plate frame and used for spraying hot air towards the circumferential wall of the tunnel. The spraying frame drives the brushes to vibrate synchronously when rotating, improves the cleaning effect on the attachments remaining in the gaps, and the vibration of the brushes does not need to rely on an additional power source, thereby saving the cost, ensuring the flatness and cleanliness of the circumferential wall surface of the tunnel and improving the stability of the coating layer after spraying.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel construction, in particular to a tunnel spraying device, a working vehicle and a spraying method. BACKGROUND

[0002] In the process of construction and later maintenance of deep tunnels, in order to avoid rock burst of the inner wall of the deep tunnel, spraying equipment is used to spray the inner wall of the tunnel with spraying material, so as to reinforce the inner wall of the tunnel.

[0003] Before spraying, it is often necessary to clean some attachments on the tunnel wall, so that the to-be-sprayed position of the tunnel wall maintains a certain flatness and cleanliness, so as to improve the adhesion of the coating. The existing spraying equipment has poor cleaning effect on the attachments on the tunnel wall, which affects the stability of the coating layer after spraying. SUMMARY

[0004] The problem solved by the present application is how to improve the adhesion effect of the coating.

[0005] To solve the above problems, the present application provides a tunnel spraying device, comprising:

[0006] A mounting plate frame is used to move along the extension direction of the tunnel;

[0007] A spraying mechanism is arranged at the middle part of the mounting plate frame, and the spraying mechanism comprises a spraying frame, which is used to make rotary motion along the circumference of the tunnel;

[0008] A wall ash treatment mechanism is arranged at the front side of the mounting plate frame, and the wall ash treatment mechanism comprises a plurality of brushes arranged along the circumference of the tunnel and abutting against the tunnel wall, and the spraying frame drives the brushes to vibrate when making rotary motion;

[0009] A coating stability mechanism is arranged at the rear side of the mounting plate frame, and the coating stability mechanism is used to blow hot air towards the tunnel wall;

[0010] A height adjustment mechanism is used to adjust the height of the mounting plate frame.

[0011] Optionally, the spraying mechanism comprises a first driving assembly and a support frame, the spraying frame comprises an arc plate and a rotating rod, the mounting plate frame is provided with an annular through slot, the arc plate is slidingly arranged in the annular through slot, the first driving assembly is arranged on the support frame, and the first driving assembly is drivingly connected with the rotating rod, so that the arc plate makes rotary motion along the circumference of the mounting plate frame.

[0012] Optionally, the first driving assembly comprises a motor, a bevel gear set, a rotating shaft and a supporting shaft, the bevel gear set comprises a first bevel gear, a second bevel gear meshing with the first bevel gear and a third bevel gear meshing with the second bevel gear, the rotating rods of the two spraying frames are respectively sleeved on the two rotating shafts, the first bevel gear and the third bevel gear are respectively sleeved on the two rotating shafts, the second bevel gear is sleeved on one end of the supporting shaft, the other end of the supporting shaft is rotationally connected to the supporting frame, the motor is installed on the supporting frame, and an output shaft of the motor is connected with one of the rotating shafts, and the other rotating shaft is rotationally connected to the supporting frame.

[0013] Optionally, the wall plaster processing mechanism further comprises a dust collector, a third flow guide pipe, an elastic assembly and a follower rod, the dust collector is installed on the mounting plate frame, a plurality of third flow guide pipes are arranged along the radial direction of the tunnel, one end of each of the plurality of third flow guide pipes is connected with the air inlet of the dust collector, the other end of each of the plurality of third flow guide pipes is connected with a corresponding brush, the brush is a hollow structure and is provided with a dust suction hole, the brush is connected with one end of the follower rod, the other end of the follower rod is used for intermittently abutting against the spraying frame, the elastic assembly is connected between the brush and the mounting plate frame.

[0014] Optionally, the follower rod is L-shaped, one end of the follower rod is connected with the brush, and the other end of the follower rod extends along the radial direction of the tunnel towards the annular through groove, the surface of the arc plate is provided with a plurality of strip-shaped grooves, the elastic assembly comprises a telescopic rod and a spring sleeved on the telescopic rod, the two ends of the spring are respectively abutted against the brush and the mounting plate frame, the follower rod comprises a first bending mode, a second bending mode and a third bending mode, and the follower rod switches between the first bending mode, the second bending mode and the third bending mode.

[0015] In the first bending mode, the end of the follower rod away from the brush extends into the annular through groove, and the spring is in a compressed state; in the second bending mode, the end of the follower rod away from the brush abuts against the outer surface of the arc plate, the spring releases elastic potential energy; and in the third bending mode, the end of the follower rod away from the brush abuts against the bottom surface of the strip-shaped groove, and the spring returns to the compressed state.

[0016] Optionally, the end of the follower rod away from the brush is integrally formed in a ball head shape, and the arc plate and the two side surfaces of the strip-shaped groove are both provided with guide inclined surfaces.

[0017] Optionally, the coating stabilizing mechanism includes a spray frame, a hot air blower, and an air guide pipe. The hot air blower is mounted on the mounting plate frame, the spray frame is located on the rear side of the mounting plate frame, the air outlet of the hot air blower is connected to one end of the air guide pipe, and the other end of the air guide pipe is connected to the arc plate.

[0018] Optionally, it also includes a paint supply mechanism, at least two of which are provided, each of which is connected to the spraying mechanism and is used to supply different types of paint.

[0019] Optionally, the paint supply mechanism includes a first supply component and a second supply component. The arc plate has a hollow structure. The first supply component includes a first liquid pump, a first liquid storage tank, and a first guide pipe. The first liquid pump is used to introduce the paint in the first liquid storage tank into the arc plate through the first guide pipe. The second supply component includes a second liquid storage tank, a second guide pipe, and a second liquid pump. The second liquid pump is used to introduce the paint in the second liquid storage tank into the arc plate through the second guide pipe.

[0020] Optionally, the first liquid storage tank is fixed to the inner bottom wall of the mounting frame, two first liquid pumps are provided and both are fixed to the upper surface of the first liquid storage tank, the outlet end of the first liquid pump is connected to one end of the first guide pipe, the other end of the first guide pipe is connected to the corresponding arc plate, the inlet end of the first liquid pump is connected to the first liquid storage tank through a pipe, the second liquid storage tank is fixed to the inner side walls of the mounting frame, two second liquid pumps are provided and fixed to the front and rear sides of the mounting frame, the inlet end of the second liquid pump is connected to the second liquid storage tank through a pipe, and the outlet end of the second liquid pump is connected to the corresponding arc plate through the second guide pipe.

[0021] Optionally, the second guide tube includes a flexible metal tube, and the lower sections of the two second guide tubes abut against the front and rear faces of the mounting plate frame, respectively.

[0022] Optionally, it also includes a backflow limiting mechanism, the backflow limiting mechanism including a second drive component and a card block, the card block including a first working position and a second working position, the second drive component being used to drive the card block to switch between the first working position and the second working position;

[0023] In the first working position, the locking block moves away from the corresponding second guide tube; in the second working position, the locking block crushes the second guide tube.

[0024] Optionally, the second driving assembly comprises a moving frame and a rodless cylinder, the rodless cylinder is arranged on the mounting frame, a sliding block in the rodless cylinder is connected with the middle part of the moving frame, and two ends of the moving frame extend towards the corresponding second flow guide pipe and are connected with the clamping block.

[0025] Optionally, the height adjusting mechanism comprises a handle, a shaft sleeve and a screw rod, the screw rod is threadedly connected with the shaft sleeve, the shaft sleeve is connected to the lower surface of the mounting frame, and the handle is sleeved on the screw rod.

[0026] The application further provides a work vehicle comprising a mobile placement vehicle, a guide rail and the tunnel spraying device as described above, the guide rail is arranged along the extension direction of the tunnel, the mobile placement vehicle is arranged on the guide rail and moves on the guide rail, and the tunnel spraying device is mounted on the mobile placement vehicle.

[0027] The application further provides a spraying method based on the tunnel spraying device as described above or the work vehicle as described above, and the method comprises the following steps:

[0028] S1: adjusting the height of the mounting frame according to the height of the tunnel peripheral wall through the height adjusting mechanism;

[0029] S2: driving the brush to vibrate by the spraying frame which rotates, so as to clean the adhering matters on the tunnel peripheral wall;

[0030] S3: spraying paint on the cleaned tunnel peripheral wall by the spraying frame;

[0031] S4: blowing hot air to the paint layer on the tunnel peripheral wall by the coating stabilizing mechanism.

[0032] Compared with the prior art, the application has the following beneficial effects:

[0033] The spraying mechanism, the wall ash treatment mechanism and the coating stabilizing mechanism are arranged on the mounting rack, and the mounting rack moves along the extension direction of the tunnel, so that continuous spraying operation in the tunnel is realized; the spraying rack rotates along the circumferential direction of the tunnel, so that the spraying rack can perform spraying operation on the circumferential wall of the tunnel; the wall ash treatment mechanism is located at the front side of the mounting rack, and when the mounting rack travels, the wall ash treatment mechanism reaches the position to be sprayed first; when the spraying rack rotates, the brush vibrates synchronously, the cleaning effect of the attachments remaining in the gap is improved, the vibration of the brush does not need to rely on an additional power source, cost is saved, the flatness and cleanliness of the circumferential wall of the tunnel are ensured, the adhesion effect of the subsequent coating is improved, and the stability of the coating layer is improved; the coating stabilizing mechanism is arranged at the rear side of the mounting rack, and can perform drying operation on the coating after spraying; the height adjusting mechanism can adjust the height of the mounting rack, and according to the size of the circumferential wall of the tunnel, the spraying mechanism, the wall ash treatment mechanism and the coating stabilizing mechanism can be adjusted to appropriate operation positions, and the application range is improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a three-dimensional structure schematic diagram of an embodiment of the application;

[0035] Figure 2 It is a three-dimensional structure schematic diagram of a mobile placement vehicle of an embodiment of the application;

[0036] Figure 3 It is a sectional three-dimensional structure schematic diagram of an embodiment of the application;

[0037] Figure 4 It is a first partial three-dimensional structure schematic diagram of a spraying mechanism of an embodiment of the application;

[0038] Figure 5 It is a second partial three-dimensional structure schematic diagram of a spraying mechanism of an embodiment of the application;

[0039] Figure 6 It is a first partial three-dimensional structure schematic diagram of a coating switching mechanism of an embodiment of the application;

[0040] Figure 7 It is a second partial three-dimensional structure schematic diagram of a coating switching mechanism of an embodiment of the application;

[0041] Figure 8 It is a first partial three-dimensional structure schematic diagram of a coating stabilizing mechanism of an embodiment of the application;

[0042] Figure 9 It is a second partial three-dimensional structure schematic diagram of a coating stabilizing mechanism of an embodiment of the application;

[0043] Figure 10 It is a third partial three-dimensional structure schematic diagram of a coating stabilizing mechanism of an embodiment of the application;

[0044] Figure 11 Figure 1 is a first partial perspective view of a backflow limiting mechanism according to an embodiment of the present application;

[0045] Figure 12 Figure 2 is a second partial perspective view of a backflow limiting mechanism according to an embodiment of the present application;

[0046] Figure 13 Figure 3 is a perspective view of a height adjusting mechanism according to an embodiment of the present application;

[0047] Figure 14 Figure 4 is a first partial perspective view of a wall plaster processing mechanism according to an embodiment of the present application;

[0048] Figure 15 Figure 5 is a second partial perspective view of a wall plaster processing mechanism according to an embodiment of the present application.

[0049] Legend of reference signs:

[0050] 1, mobile placing vehicle; 11, mounting plate frame; 12, guide rail; 2, spraying mechanism; 21, motor; 22, spraying frame; 23, first liquid pump; 24, helical gear set; 25, first liquid storage tank; 26, first flow guide pipe; 27, support frame; 3, coating supply mechanism; 31, second liquid storage tank; 32, second flow guide pipe; 33, second liquid pump; 4, coating stabilizing mechanism; 41, spraying frame; 42, hot air blower; 43, air guide pipe; 5, backflow limiting mechanism; 51, moving frame; 52, rodless cylinder; 53, clamping block; 6, height adjusting mechanism; 61, handle; 62, shaft sleeve; 63, screw rod; 7, wall plaster processing mechanism; 71, dust collector; 72, third flow guide pipe; 73, brush; 74, elastic assembly; 75, follow-up rod. DETAILED DESCRIPTION

[0051] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0052] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0053] In the description of the present specification, the description of the terms "embodiment", "one embodiment", and "another embodiment" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or implementation are included in at least one embodiment or implementation of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0054] In combination Figures 1-3 As shown in the drawings, the embodiment of the present application provides a tunnel spraying device, comprising: a mounting plate frame 11, a spraying mechanism 2 arranged in the middle of the mounting plate frame 11, a wall ash treatment mechanism 7 arranged on the front side of the mounting plate frame 11, a coating stabilizing mechanism 4 arranged on the rear side of the mounting plate frame 11, and a height adjusting mechanism 6 for adjusting the height of the mounting plate frame 11.

[0055] Firstly, the spraying mechanism 2 can move along the extension direction of the deep tunnel; for example, when the tunnel is a continuous irregular curve type, the travel direction of the spraying mechanism 2 is a continuous irregular curve path, that is, the spraying mechanism 2 can run along the curve path of the tunnel.

[0056] Secondly, the front side, the middle and the rear side of the mounting plate frame 11 are divided according to the travel direction of the mounting plate frame 11, that is, when the mounting plate frame 11 travels, the front side of the mounting plate frame 11 reaches the to-be-sprayed position of the tunnel peripheral wall first, then the middle of the mounting plate frame 11 reaches, and the rear side of the mounting plate frame 11 reaches last.

[0057] In the embodiment, by arranging the spraying mechanism 2, the wall ash treatment mechanism 7 and the coating stabilizing mechanism 4 on the mounting plate frame 11, the mounting plate frame 11 moves along the extension direction of the tunnel, thereby realizing continuous spraying operation in the tunnel; the spraying frame 22 rotates along the circumferential direction of the tunnel, so that the spraying frame 22 can perform spraying operation on the tunnel peripheral wall; the wall ash treatment mechanism 7 is arranged on the front side of the mounting plate frame 11, so that when the mounting plate frame 11 travels, the wall ash treatment mechanism 7 reaches the to-be-sprayed position first, and the brush 73 vibrates synchronously when the spraying frame 22 rotates, thereby improving the cleaning effect on the attachments remaining in the gap, and the vibration of the brush 73 does not need to rely on an additional power source, thereby saving cost, ensuring the flatness and cleanliness of the tunnel peripheral wall surface, improving the adhesion effect of the subsequent coating, and further improving the stability of the coating layer; the coating stabilizing mechanism 4 is arranged on the rear side of the mounting plate frame 11, and can perform drying operation on the coating after spraying; the height adjusting mechanism 6 can adjust the height of the mounting plate frame 11, and can adjust the spraying mechanism 2, the wall ash treatment mechanism 7 and the coating stabilizing mechanism 4 to appropriate working positions according to the size of the tunnel peripheral wall, thereby improving the application range.

[0058] The coating can be polyurea, mortar, etc., and is selected flexibly according to actual construction.

[0059] In one embodiment of the present application, the coating mechanism 2 comprises a first driving assembly and a support frame 27. Figure 4 As shown in the figure, the spraying mechanism 2 comprises a first driving assembly and a support frame 27, the spraying frame 22 comprises an arc plate and a rotating rod, the mounting plate frame 11 is provided with an annular through slot, the arc plate is slidably arranged in the annular through slot, the first driving assembly is arranged on the support frame 27, and the first driving assembly is drivingly connected with the rotating rod, so that the arc plate rotates along the circumferential direction of the mounting plate frame 11.

[0060] Specifically, the mounting plate frame 11 can be a horizontally arranged cylindrical structure, when the mounting plate frame 11 moves, the head of the mounting plate frame 11 is the front side, the tail of the mounting plate frame 11 is the rear side, the middle part of the mounting plate frame 11 is provided with an annular through slot, the outer side of the spraying frame 22 is matched with the arc plate of the annular through slot, the annular through slot can be provided with an annular slide rail, the spraying frame 22 is provided with an arc-shaped through hole, the arc-shaped through hole is slidably matched with the annular slide rail, or an annular slide groove is arranged on the side wall of the annular through slot, the outer side of the spraying frame 22 is provided with a protruding slide strip on both sides, and the protruding slide strip is slidably matched with the annular slide groove, so that the two spraying frames 22 can reciprocally slide on the mounting plate frame 11 under the driving of the driving assembly.

[0061] In the embodiment, the two spraying frames 22 can reciprocally slide on the mounting plate frame 11, so that the two spraying frames 22 can uniformly spray the coating to the tunnel wall in the reciprocating sliding process.

[0062] In another embodiment of the present application, the coating mechanism 2 comprises a first driving assembly and a support frame 27. Figure 5 As shown in the figure, the first driving assembly comprises a motor 21, a helical gear set 24, rotating shafts and a support shaft, the helical gear set 24 comprises a first helical gear, a second helical gear meshing with the first helical gear, and a third helical gear meshing with the second helical gear, the rotating rods of the two spraying frames 22 are respectively sleeved on the two rotating shafts, the first helical gear and the third helical gear are respectively sleeved on the two rotating shafts, the second helical gear is sleeved on one end of the support shaft, the other end of the support shaft is rotatably connected to the support frame 27, the motor 21 is mounted on the support frame 27, and the output shaft of the motor 21 is connected with one of the rotating shafts, and the other rotating shaft is rotatably connected to the support frame 27.

[0063] Specifically, the motor 21 can be fixed on one side of the support frame 27, one end of the support frame 27 can be fixed on the rear side of the mounting plate frame 11, the other end of the support frame 27 extends towards the inside of the mounting plate frame 11, the output shaft of the motor 21 is connected with one of the rotating shafts through a shaft coupling, the first helical gear is fixed on the rotating shaft, a support shaft is rotatably connected on the support frame 27, the second helical gear is fixed on the upper part of the support shaft, another rotating shaft is rotatably connected on the other side of the support frame 27, the third helical gear is fixed on the rotating shaft, the second helical gear is meshed with the first helical gear and the third helical gear on both sides respectively, and the rotating rods of the mounting plate frame 11 are fixed on the corresponding rotating shafts.

[0064] In the embodiment, the motor 21 can be a highland motor, which can be normally used in a tunnel under harsh conditions. The motor 21 drives the corresponding rotating shaft to rotate, so that the mounting plate frame 11 rotates, the first helical gear drives the third helical gear to rotate through the second helical gear, so as to drive the other rotating shaft to rotate, and finally the two mounting plate frames 11 synchronously rotate on the mounting plate frame 11, so that the spraying frame 22 sprays paint to the tunnel wall. When the spraying frame 22 rotates clockwise to a certain angle, the output shaft of the motor 21 is reversely rotated, so that the two spraying frames 22 rotate counterclockwise. When the spraying frame 22 rotates counterclockwise to a certain angle, the output shaft of the highland motor is forwardly rotated, so that the spraying frame 22 rotates clockwise. In this way, the spraying frame 22 reciprocates, so as to realize the automatic spraying effect of the tunnel wall in all directions without dead angle.

[0065] It should be noted that the forward rotation and reverse rotation of the output shaft of the motor 21 is realized by using the prior art, which is not described in detail in the present case.

[0066] In other embodiments of the present application, the paint supply mechanism 3 comprises a first supply assembly and a second supply assembly. Figures 5-7 The first supply assembly comprises a first liquid pump 23, a first liquid tank 25 and a first flow guide pipe 26, the first liquid pump 23 is used to guide the paint in the first liquid tank 25 into the arc plate through the first flow guide pipe 26, the second supply assembly comprises a second liquid tank 31, a second flow guide pipe 32 and a second liquid pump 33, the second liquid pump 33 is used to guide the paint in the second liquid tank 31 into the arc plate through the second flow guide pipe 32.

[0067] Specifically, the first liquid tank 25 can be fixed in the middle of the inner bottom surface of the mounting rack 11, the first liquid pump 23 can be provided with two and fixed on the upper surface of the first liquid tank 25, the liquid outlet of the first liquid pump 23 is communicated with one end of the first flow guide pipe 26, the other end of the first flow guide pipe 26 can branch into multiple branch pipes and be communicated with the corresponding arc plate, the liquid inlet of the first liquid pump 23 is communicated with the first liquid tank 25 through a pipeline, and the first flow guide pipe 26 is a soft metal pipe and the middle pipe section is arranged in a spiral upward manner, the second liquid tank 31 can be fixed on both sides of the inner bottom surface of the mounting rack 11, the second liquid pump 33 can be provided with two and fixed on the front and rear sides of the inner bottom surface of the mounting rack 11, the liquid inlet of the second liquid pump 33 is communicated with the second liquid tank 31 through a pipeline, the liquid outlet of the second liquid pump 33 is communicated with the arc plate through the second flow guide pipe 32, the lower pipe sections of the two second flow guide pipes 32 are respectively abutted with the front end surface and the rear end surface of the mounting rack 11, and the second flow guide pipe 32 is a soft metal pipe.

[0068] In the embodiment, the first liquid pump 23 and the second liquid pump 33 are respectively provided with two purposes, which can improve the rate of paint extraction and the pressure during spraying, and the first flow guide pipe 26 and the second flow guide pipe 32 are communicated with the arc plate of the spraying frame 22 through multiple branch pipes, which accelerates the rate of the arc plate of the spraying frame 22 being filled with paint, the first flow guide pipe 26 is a soft metal pipe and the middle pipe section is arranged in a spiral upward manner, so that the first flow guide pipe 26 has a certain follow-up property, when the spraying frame 22 reciprocating rotates, the first flow guide pipe 26 will not cause motion interference, and the second flow guide pipe 32 is also a soft metal pipe, which will not interfere with the rotation of the spraying frame 22.

[0069] It should be noted that the arrangement of the related equipment in the case is not limited to the arrangement mentioned in the case, and other arrangement can be used under the premise of reasonable utilization of space.

[0070] In one specific embodiment of the present application, in combination with Figures 14-15 As shown in the figure, the wall ash processing mechanism 7 further includes a dust collector 71, a third flow guide pipe 72, an elastic assembly 74 and a follow-up rod 75, the dust collector 71 is installed on the mounting rack 11, the third flow guide pipe 72 is provided with multiple along the radial direction of the tunnel, one end of the multiple third flow guide pipes 72 is connected with the air inlet of the dust collector 71, the other end of the multiple third flow guide pipes 72 is connected with the corresponding brush 73, the brush 73 is a hollow structure and is provided with a dust suction hole, the brush 73 is connected with one end of the follow-up rod 75, the other end of the follow-up rod 75 is used for intermittent abutment with the spraying frame 22, the elastic assembly 74 is connected between the brush 73 and the mounting rack 11 and has two ends respectively connected with the brush 73 and the mounting rack 11;

[0071] The follow-up rod 75 is L-shaped, one end of which is connected with the brush 73, and the other end extends along the radial direction of the tunnel to the direction of the annular channel. The surface of the arc plate is provided with a plurality of strip-shaped grooves. The elastic assembly 74 includes a telescopic rod and a spring sleeved on the telescopic rod, and the two ends of the spring are respectively in abutment with the brush 73 and the mounting plate frame 11. The follow-up rod 75 includes a first bending mode, a second bending mode and a third bending mode, and the follow-up rod 75 switches between the first bending mode, the second bending mode and the third bending mode.

[0072] In the first bending mode, the end of the follow-up rod 75 away from the brush 73 extends into the annular channel, and the spring is in a compressed state. In the second bending mode, the end of the follow-up rod 75 away from the brush 73 is in abutment with the outer surface of the arc plate, and the spring releases the elastic potential energy. In the third bending mode, the end of the follow-up rod 75 away from the brush 73 is in abutment with the bottom surface of the strip-shaped groove, and the spring returns to the compressed state.

[0073] In another specific embodiment of the present application, the dust collector 71 can be fixed on the front side of the mounting plate frame 11. The suction end of the dust collector 71 is in communication with a plurality of third flow guide pipes 72, which extend along the radial direction of the tunnel and are in communication with the brush 73. The brush 73 can be a hollow block, which is provided with a plurality of brush hairs and a plurality of dust suction holes. The follow-up rod 75 is L-shaped, one end of which is connected with the brush 73, and the other end extends into the annular channel of the mounting plate frame 11. The surface of the arc plate of the spraying frame 22 is provided with strip-shaped grooves arranged at equal intervals. The follow-up rod 75 is in abutment with the surface of the arc plate and the strip-shaped grooves. The end of the follow-up rod 75 for abutment is integrally formed in a ball head shape. The two ends of the arc plate of the spraying frame 22 are provided with guide inclined surfaces, which facilitate the ball head-shaped end of the follow-up rod 75 to slide from the annular channel of the mounting plate frame 11 to the surface of the arc plate of the spraying frame 22. The two side walls of the strip-shaped grooves are also provided with guide inclined surfaces, which facilitate the ball head-shaped end of the follow-up rod 75 to slide out of the strip-shaped grooves. The elastic assembly 74 includes a telescopic rod and a spring sleeved on the telescopic rod. The two ends of the telescopic rod are fixed on the brush 73 and the front side peripheral surface of the mounting plate frame 11, respectively. The third flow guide pipe 72 and the follow-up rod 75 are both made of metal.

[0074] In other specific embodiments of the present application, the third flow guide pipe 72 is elastically connected with the follower rod 75, so that it can be bent to a certain extent, and the spring in the elastic assembly 74 is in a compressed state. When the end of the follower rod 75 slides over the arc plate surface of the spraying frame 22 from the annular through slot of the mounting plate frame 11, the follower rod 75 lifts the brush 73, and the spring releases the elastic potential energy stored when it is compressed, causing the brush 73 to vibrate. When the end of the follower rod 75 slides into the strip-shaped groove from the arc plate surface of the spraying frame 22, the brush 73 vibrates again. The spraying frame 22 is in intermittent contact with the end of the follower rod 75 when it rotates, which realizes the continuous vibration of the brush 73, and further helps to clean the adhesions adhered to the wall of the tunnel, and the dust collector 71 absorbs the adhesions through the brush 73 and the third flow guide pipe 72.

[0075] Optionally, in combination with the Figures 11-12 As shown, the backflow limiting mechanism 5 further includes a second driving assembly and a clamping block 53, the clamping block 53 includes a first working position and a second working position, and the second driving assembly is used to drive the clamping block 53 to switch between the first working position and the second working position.

[0076] In the first working position, the clamping block 53 is away from the corresponding second flow guide pipe 32, and in the second working position, the clamping block 53 collapses the second flow guide pipe 32.

[0077] The second driving assembly includes a moving frame 51 and a rodless cylinder 52, the rodless cylinder 52 is arranged on the mounting plate frame 11, a sliding block in the rodless cylinder 52 is connected with the middle part of the moving frame 51, and both ends of the moving frame 51 extend towards the corresponding second flow guide pipe 32 and are connected with the clamping block 53.

[0078] Specifically, the rodless cylinder 52 can be fixed on the upper surface of the first liquid storage tank 25 along the front and rear sides of the mounting plate frame 11, the moving frame 51 can be T-shaped, the moving frame 51 is fixed with the sliding block in the rodless cylinder 52, the other two ends of the moving frame 51 extend along the front and rear sides of the mounting plate frame 11 and are connected with the clamping block 53, and the abutting surface of the clamping block 53 is integrally formed as a concave surface matched with the outer peripheral surface of the second flow guide pipe 32.

[0079] In the embodiment, when the sliding block in the rodless cylinder 52 moves to the front side, the moving frame 51 is driven to move forward as a whole, and the lower pipe section of the second flow guide pipe 32 is pressed by the clamping block 53 due to the abutment of the lower pipe section of the second flow guide pipe 32 with the end surface of the mounting plate frame 11. Since the second flow guide pipe 32 is a soft metal pipe, the lower pipe section of the second flow guide pipe 32 is gradually pressed flat under the clamping of the clamping block 53 and the end surface of the mounting plate frame 11. At this time, the rodless cylinder 52 is closed to avoid the backflow of the coating through the second flow guide pipe 32 into the second liquid tank 31. When the second liquid pump 33 is started, the rodless cylinder 52 is synchronously started and drives the moving frame 51 to move backward, and then the clamping block 53 moves backward away from the second flow guide pipe 32. The second flow guide pipe 32 returns to the original shape, and the second flow guide pipe 32 returns to the initial state. When the clamping block 53 moves backward to the appropriate position, the rodless cylinder 52 is closed.

[0080] In another specific embodiment of the present application, the tunnel spraying device is combined with a tunnel coating stabilizing mechanism. Figures 8-10 As shown in the figure, the coating stabilizing mechanism 4 comprises a spraying frame 41, a hot air machine 42 and a gas guide pipe 43. The spraying frame 41 is arranged at the rear side of the mounting plate frame 11, and the hot air machine 42 is connected to the spraying frame 41 through the gas guide pipe 43.

[0081] Specifically, the spraying frame 41 can be a hollow plate structure or a tubular structure, and a plurality of uniformly distributed air injection holes are arranged on the outer circumferential surface of the spraying frame 41. An air injection nozzle can be arranged on the air injection hole. The hot air machine 42 can be one or more, and the hot air machine 42 can be arranged on the rear side wall of the mounting plate frame 11. The air outlet of each hot air machine 42 is connected to the spraying frame 41 through the gas guide pipe 43.

[0082] In the embodiment, the spraying frame 41 is arranged at the rear side of the mounting plate frame 11, that is, after the spraying of the coating is completed, the hot air generated by the hot air machine 42 is transported to the spraying frame 41 through the gas guide pipe 43, and then blown to the tunnel wall through the spraying frame 41 to accelerate the solidification speed of the coating layer, thereby achieving the drying effect of the coating layer. When the coating layer does not need to be dried, the hot air machine 42 can be turned off.

[0083] In the embodiment of the present application, a work vehicle is also provided, which comprises a mobile placing vehicle 1, a guide rail 12 and a tunnel spraying device as described above. The guide rail 12 is arranged along the extension direction of the tunnel, the mobile placing vehicle 1 is arranged on the guide rail 12 and moves on the guide rail 12, and the tunnel spraying device is arranged on the mobile placing vehicle 1.

[0084] Specifically, the guide rail 12 is arranged at least two, and the plurality of guide rails 12 are parallel to each other and are laid along the tunnel extension direction, and the wheels on the mobile placement vehicle 1 are matched with the plurality of guide rails 12, and it should be noted that although the plurality of guide rails 12 increase the laying work, since the wheels on the mobile placement vehicle 1 are all arranged on the guide rail 12, the running resistance of the mobile placement vehicle 1 is small, the stability is high, and the mobile placement vehicle 1 is suitable for long-distance spraying operation, and the mobile placement vehicle 1 can be driven by manpower, external machinery, and the like, and can also be driven by power, fuel, and the like.

[0085] In the embodiment, the mounting plate frame 11 is fixed on the mobile placement vehicle 1, and the mobile placement vehicle 1 can move along the guide rail 12, so that the mobile placement vehicle 1 moves along the tunnel extension direction, and the synchronization operation of the spraying device and spraying is realized.

[0086] In summary, the spraying device can be used for spraying operation in a deep tunnel, the motor 21 can be a highland motor, the first liquid pump 23 and the second liquid pump 33 and the hot air machine 42 can each be provided at least two, to meet the use requirements in the deep tunnel air pressure environment.

[0087] In an embodiment of the present application, the guide rail 12 is arranged in one, and the guide rail 12 is laid on the tunnel bottom wall along the tunnel extension direction, and at least part of the wheels on the mobile placement vehicle 1 are matched with the guide rail 12, in order to ensure the stability of the mobile placement vehicle 1, the remaining wheels on the mobile placement vehicle 1 are directly in contact with the tunnel bottom wall, and the mobile placement vehicle 1 can also move, and it should be noted that although the arrangement of the guide rail 12 can save the laying work, part of the wheels on the mobile placement vehicle 1 are directly in contact with the tunnel bottom wall, the running resistance is large, and the stability of the mobile placement vehicle 1 is poor, and the mobile placement vehicle 1 is suitable for short-distance spraying operation.

[0088] It should be noted that the work vehicle includes the tunnel spraying device described above, and also includes all the advantages of the tunnel spraying device, which will not be described here. It should be noted that the mobile placement vehicle 1 belongs to the prior art, and its structure and principle are not the focus of this article, which will not be described here.

[0089] In another embodiment of the present application, in combination Figure 13 As shown, the height adjusting mechanism 6 includes a handle 61, a shaft sleeve 62, and a lead screw 63, one end of the lead screw 63 is rotatably connected with the mobile placement vehicle 1, the other end of the lead screw 63 is threadedly connected with the shaft sleeve 62, the shaft sleeve 62 is connected with the mounting plate frame 11, and the handle 61 is sleeved on the lead screw 63.

[0090] Specifically, the height adjusting mechanism 6 is arranged on the mobile placing vehicle 1 at least in three, and the three height adjusting mechanisms 6 can form stable support for the mounting plate frame 11. One end of each of the lead screws 63 is rotatably connected to the upper surface of the mobile placing vehicle 1 through a bearing, the other end of the lead screw 63 penetrates into the shaft sleeve 62 and is threadedly connected with the shaft sleeve 62, the other end of the shaft sleeve 62 is fixed to the lower surface of the mounting plate frame 11, the lead screw 63 is sleeved with the handle 61, and the handle 61 is at least partially penetrated through the corresponding through slot of the side shell of the mobile placing vehicle 1, so that the handle 61 can be conveniently rotated from the outside of the mobile placing vehicle 1.

[0091] In the embodiment, the height adjusting mechanism 6 is arranged at four corners of the mounting plate frame 11, one end of the lead screw 63 is rotatably connected to the mobile placing vehicle 1, the lead screw 63 can be rotated relative to the mobile placing vehicle 1 through the handle 61, the other end of the lead screw 63 is threadedly connected with the shaft sleeve 62, the shaft sleeve 62 is connected with the mounting plate frame 11, and the mounting plate frame 11 can be moved up and down by driving the shaft sleeve 62 through forward or reverse rotation of the lead screw 63, so that the mounting plate frame 11 can be flexibly adjusted to a suitable position according to the height of the tunnel peripheral wall, and the spraying frame 22 can reach a suitable spraying distance from the tunnel peripheral wall, the brush 73 in the wall ash processing mechanism 7 can abut against the tunnel peripheral wall, and the spraying frame 41 can reach a suitable spraying distance from the tunnel peripheral wall.

[0092] In other embodiments of the present application, the height adjusting mechanism 6 can also be replaced by other height adjusting modes in the prior art, and can be manually operated or electrically operated, and it should be considered that these height adjusting modes all fall within the protection scope of the present application.

[0093] The embodiment provided by the present application also provides a spraying method based on the tunnel spraying device or the working vehicle.

[0094] S1: adjusting the height of the mounting plate frame 11 through the height adjusting mechanism 6 according to the height of the tunnel peripheral wall;

[0095] S2: driving the brush 73 to vibrate through the spraying frame 22 and the rotary movement, and cleaning the attachments on the tunnel peripheral wall;

[0096] S3: spraying the paint on the cleaned tunnel peripheral wall through the spraying frame 22;

[0097] S4: blowing the hot air to the paint layer on the tunnel peripheral wall through the coating stabilizing mechanism 4.

[0098] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A tunnel spray device, characterized in that, The utility model relates to a tunnel wall spraying device, including: mounting plate frame (11) for moving along the extension direction of tunnel; Spraying mechanism (2) is arranged in the middle part of mounting plate frame (11), and spraying mechanism (2) includes spraying frame (22), and spraying frame (22) is used to make rotary motion along the circumference of tunnel; Wall plaster processing mechanism (7) is arranged in the front side of mounting plate frame (11), and wall plaster processing mechanism (7) includes brush (73), and multiple brush (73) is arranged along the circumference of tunnel and is in contact with the circumferential wall of tunnel, and spraying frame (22) makes the brush (73) vibrate when making rotary motion; Coating stabilizing mechanism (4) is arranged in the back side of mounting plate frame (11), and coating stabilizing mechanism (4) is used to blow hot air to the circumferential wall of tunnel; Height adjusting mechanism (6) is used to adjust the height of mounting plate frame (11); Spraying mechanism (2) includes first drive assembly and support frame (27), and spraying frame (22) includes arc plate and rotating rod, and the annular through slot is arranged on mounting plate frame (11), and arc plate is slidably arranged in the annular through slot, and first drive assembly is arranged on support frame (27), and first drive assembly is drivingly connected with rotating rod, to make arc plate make rotary motion along the circumference of mounting plate frame (11); First drive assembly includes motor (21), helical gear set (24), rotating shaft and support shaft, helical gear set (24) includes first helical gear, second helical gear meshing with first helical gear and third helical gear meshing with second helical gear, rotating rod of two spraying frames (22) is respectively sleeved on two rotating shafts, first helical gear and third helical gear are respectively sleeved on two rotating shafts, second helical gear is sleeved on one end of support shaft, the other end of support shaft is rotatably connected on support frame (27), motor (21) is installed on support frame (27), and the output shaft of motor (21) is connected with one of rotating shafts, and the other rotating shaft is rotatably connected on support frame (27); Wall plaster processing mechanism (7) further includes dust collector (71), third flow guide pipe (72), elastic assembly (74) and follow-up rod (75), dust collector (71) is installed on mounting plate frame (11), multiple third flow guide pipes (72) are arranged along the radial direction of tunnel, one end of multiple third flow guide pipes (72) is connected with the air inlet of dust collector (71), the other end of multiple third flow guide pipes (72) is connected with corresponding brush (73), the brush (73) is hollow structure and is provided with dust suction hole, the brush (73) is connected with one end of follow-up rod (75), the other end of follow-up rod (75) is used to intermittently abut with spraying frame (22), the both ends of elastic assembly (74) are respectively connected with brush (73) and mounting plate frame (11), and elastic assembly (74) is connected between brush (73) and mounting plate frame (11); The coating supply mechanism (3) is provided with at least two, each of which is connected with the spraying mechanism (2) and used for supplying different types of coating. The coating supply mechanism (3) comprises a first supply assembly and a second supply assembly, the arc plate is a hollow structure, the first supply assembly comprises a first liquid pump (23), a first liquid storage tank (25) and a first flow guide pipe (26), the first liquid pump (23) is used for guiding the coating in the first liquid storage tank (25) into the arc plate through the first flow guide pipe (26), the second supply assembly comprises a second liquid storage tank (31), a second flow guide pipe (32) and a second liquid pump (33), the second liquid pump (33) is used for guiding the coating in the second liquid storage tank (31) into the arc plate through the second flow guide pipe (32).

2. The tunnel spray device of claim 1, wherein The follow-up rod (75) is L-shaped, one end of which is connected with the brush (73), and the other end of which extends along the radial direction of the tunnel to the direction of the annular through groove, the surface of the arc plate is provided with a plurality of strip-shaped grooves, the elastic assembly (74) comprises a telescopic rod and a spring sleeved on the telescopic rod, two ends of the spring are respectively abutted against the brush (73) and the mounting plate frame (11), the follow-up rod (75) comprises a first bending mode, a second bending mode and a third bending mode, and the follow-up rod (75) is switched between the first bending mode, the second bending mode and the third bending mode. In the first bending mode, one end of the follow-up rod (75) away from the brush (73) extends into the annular through groove, and the spring is in a compressed state; in the second bending mode, one end of the follow-up rod (75) away from the brush (73) is abutted against the outer surface of the arc plate, the spring releases elastic potential energy, and in the third bending mode, one end of the follow-up rod (75) away from the brush (73) is abutted against the bottom surface of the strip-shaped groove, and the spring returns to the compressed state.

3. The tunnel spray device of claim 2, wherein, One end of the follow-up rod (75) away from the brush (73) is integrally formed into a ball head shape, and the arc plate and the two side surfaces of the strip-shaped groove are provided with guide inclined surfaces.

4. The tunnel spray device of claim 1, wherein, The coating layer stabilizing mechanism (4) comprises a spraying frame (41), a hot air machine (42) and a gas guide pipe (43), the hot air machine (42) is arranged on the mounting plate frame (11), the spraying frame (41) is arranged on the rear side of the mounting plate frame (11), one end of the hot air machine (42) is connected with one end of the gas guide pipe (43), and the other end of the gas guide pipe (43) is communicated with the arc plate.

5. The tunnel spray device of claim 1, wherein, The first liquid tank (25) is fixed to the inner bottom wall of the mounting rack (11), the first liquid pump (23) is provided with two and is fixed to the upper surface of the first liquid tank (25), the liquid outlet end of the first liquid pump (23) is communicated with one end of the first flow guide pipe (26), the other end of the first flow guide pipe (26) is communicated with the corresponding arc plate, the liquid inlet end of the first liquid pump (23) is communicated with the first liquid tank (25) through a pipeline, the second liquid tank (31) is fixed to the inner two side walls of the mounting rack (11), the second liquid pump (33) is provided with two and is fixed to the front and rear sides of the mounting rack (11), the liquid inlet end of the second liquid pump (33) is communicated with the second liquid tank (31) through a pipeline, and the liquid outlet end of the second liquid pump (33) is communicated with the corresponding arc plate through the second flow guide pipe (32).

6. The tunnel spray device of claim 5, wherein, The second flow guide pipe (32) comprises a soft metal pipe, and the lower pipe sections of the two second flow guide pipes (32) are respectively abutted against the front end face and the rear end face of the mounting rack (11).

7. The tunnel spray device of claim 6, wherein, Further comprising a backflow limiting mechanism (5), the backflow limiting mechanism (5) comprises a second driving assembly and a clamping block (53), the clamping block (53) comprises a first working position and a second working position, and the second driving assembly is used for driving the clamping block (53) to switch between the first working position and the second working position; Wherein, in the state of the first working position, the clamping block (53) is away from the corresponding second flow guide pipe (32), and in the state of the second working position, the clamping block (53) collapses the second flow guide pipe (32).

8. The tunnel spray device of claim 7, wherein, The second driving assembly comprises a moving frame (51) and a rodless cylinder (52), the rodless cylinder (52) is arranged on the mounting rack (11), a sliding block in the rodless cylinder (52) is connected with the middle part of the moving frame (51), and both ends of the moving frame (51) extend towards the corresponding second flow guide pipe (32) and are connected with the clamping block (53).

9. The tunnel spray device of claim 1, wherein, The height adjusting mechanism (6) comprises a handle (61), a shaft sleeve (62) and a lead screw (63), the lead screw (63) is threadedly connected with the shaft sleeve (62), the shaft sleeve (62) is connected to the lower surface of the mounting rack (11), and the handle (61) is sleeved on the lead screw (63).

10. A work vehicle characterized by, The tunnel spraying device comprises a moving placement vehicle (1), a guide rail (12) and the tunnel spraying device according to any one of claims 1-9, the guide rail (12) is arranged along the extension direction of the tunnel, the moving placement vehicle (1) is arranged on the guide rail (12), and the moving placement vehicle (1) moves on the guide rail (12), and the tunnel spraying device is mounted on the moving placement vehicle (1).

11. A method of spraying, characterized in that Based on the tunnel spraying device according to any one of claims 1-9 or the work vehicle according to claim 10, comprising the steps of: S1: adjusting the height of the mounting rack (11) according to the height of the tunnel peripheral wall through the height adjusting mechanism (6); S2: The brush (73) is vibrated by the spraying frame (22) driven to rotate, and the adhesion on the tunnel wall is cleaned; S3: The paint is sprayed on the cleaned tunnel wall by the spraying frame (22); S4: The hot air is blown to the paint layer on the tunnel wall by the coating stabilizing mechanism (4).

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