Detachable arc-shaped tunnel wall surface spraying device

Abstract

The invention relates to a detachable arc-shaped tunnel wall surface spraying device, and belongs to the technical field of spraying mechanisms. Comprising a rack, a walking mechanism, a swing arm power mechanism, a telescopic swing arm, a spray gun support, a spraying mechanism, a console and a power supply and distribution mechanism. Wherein the walking mechanism is installed at the bottom of the rack, the spray gun support is movably installed at the top of the telescopic swing arm, a spray gun on the spray gun support is connected with the spraying mechanism through a pipeline, and the swing arm power mechanism drives the telescopic swing arm to swing in a reciprocating mode with a connecting shaft as the axis and drives the spray gun to do arc-shaped motion to conduct reciprocating spraying on the arc-shaped wall face of a tunnel. According to the device, slurry can be uniformly sprayed on the arc-shaped inner wall of a tunnel, reciprocating spraying of an arc-shaped surface layer can be achieved, the device can adapt to continuous spraying operation of a large space and an arc-shaped surface, the spraying effect is good, the efficiency is high, meanwhile, the whole device can walk on the arc-shaped surface, and the dust filtering function is achieved.

Description

Technical Field

[0001] The invention relates to a detachable arc-shaped tunnel wall spraying device, belonging to the technical field of spraying mechanisms. Background Art

[0002] The construction environment of the arc wall of the tunnel has high requirements, such as surface flatness and high sealing performance. At present, the large-area coating construction of the tunnel is mainly done manually. The existing liquid coating spraying mechanism has the following main shortcomings: 1. The spraying distance and spraying angle cannot be flexibly adjusted, making it difficult to achieve uniform and accurate spraying when facing areas to be sprayed in different shapes and sizes, such as arc-shaped areas to be sprayed, resulting in poor coating quality; 2. It does not have the function of walking on the curved surface, and when it is necessary to spray a large area or multiple scattered areas to be sprayed, the operation is extremely inconvenient and inefficient; 3. A large amount of dust and exhaust gas will be generated during the spraying process, which will not only affect the air quality of the working environment and endanger the health of the operators, but may also have a negative impact on the spraying effect. The existing spraying mechanism has incomplete structural settings in terms of dust removal and ventilation, and the equipment lacks effective dust prevention measures. The particles generated during the spraying process can easily pollute the completed surface and the surface to be constructed, causing impurities, bubbles and other defects in the coating, further reducing the quality and reliability of the product.

[0003] Therefore, it is urgent to design a spraying device that can solve the above-mentioned technical problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the above-mentioned prior art and to propose a detachable curved tunnel wall spraying device, which can evenly spray the slurry on the curved inner wall of the tunnel to achieve reciprocating and uniform spraying of the curved surface layer. Compared with manual spraying, the tunnel spraying device of the present invention can adapt to continuous spraying operations in large spaces and curved surfaces, with good spraying effect and high efficiency. At the same time, the entire device can move on the curved surface and has a dust filtering function.

[0005] The invention discloses a detachable arc-shaped tunnel wall spraying device, which is special in that it comprises: a platform, a walking mechanism, a swing arm power mechanism, a telescopic swing arm, a spray gun bracket, a spray mechanism, a control console, and a power supply and distribution mechanism; wherein the walking mechanism is installed at the bottom of the platform, and can drive the entire platform to move; the walking mechanism, the swing arm power mechanism, and the spray mechanism are controlled to work by the control console; the spray gun bracket is movably installed at the top of the telescopic swing arm; the spray gun installed on the spray gun bracket is connected to the spray mechanism through a pipeline; the swing arm power mechanism drives the telescopic swing arm to swing back and forth with the connecting shaft as the axis, and drives the spray gun to move in an arc shape, so as to spray the arc-shaped wall of the tunnel back and forth; Preferably, the detachable arc-shaped tunnel wall spraying device further comprises a shielding mechanism, which comprises a detachable vertical shielding plate and a horizontal shielding plate, both of which are installed at an upper position on one side of the platform; Preferably, the detachable arc-shaped tunnel wall spraying device further includes a ventilation and dust collection mechanism, which includes a fan, a pipeline, a plurality of air inlets, an air outlet, and a dust collection device. The fan and the dust collection device are installed on the pipeline, and the pipeline is composed of a plurality of transverse pipelines and a vertical pipeline. The vertical pipeline runs through the entire height direction of the platform. The transverse pipeline matches the number of layers of the platform. The plurality of air inlets are arranged along the length direction of the transverse pipeline, and the air inlets can be opened and closed. The air inlets are close to the spraying working area, and the air outlets are arranged away from the spraying working area. A detachable plate filter is arranged inside the dust collection device, and a pull-out tray is provided under the filter to facilitate timely cleaning of the collected dust. Preferably, the swing arm power mechanism includes a motor, a reducer, and a reducer connecting shaft, the reducer connecting shaft is connected and fixed to one end of the spray telescopic swing arm, the telescopic swing arm adopts a one-section or multi-section nested design, the length is adjustable, and the reciprocating swing spraying is achieved by setting the motor forward and reverse rotation; Preferably, the spray gun bracket is provided with a plurality of slots for installing the spray gun, and the side of the slot is provided with a limiting mechanism, which can limit and lock the spray gun after installation to prevent it from falling. When the spray gun needs to be removed, the limiting mechanism is manually opened, and the spray gun is pushed out along the slot opening direction. The limiting mechanism includes a locking tongue, a spring, a handle, a first rotating shaft, a second rotating shaft, and a buckle cover. The spray gun bracket and the telescopic swing arm are connected by a connecting plate 503 and bolts, and the connecting plate can be rotated to change the direction of the spray gun; Preferably, the walking mechanism includes a motor, a reducer, a brake, and a plurality of walking wheels with a braking function. The walking mechanism is connected to the platform through a connecting rod and a diagonal brace. A rotatable shaft is provided at the top of the connecting rod. The bottom angle of the walking mechanism is adjusted by adjusting the connection position of the diagonal brace and the platform. Both sides of the walking wheel are provided with inclined surfaces for facilitating traveling on the curved surface. Preferably, the platform is a steel structure frame assembled from steel components, and the overall design is multi-layer. The platform includes multiple steel structure components, which are fixed by bolts. Multiple platforms arranged up and down are installed on the steel structure components. Stairs for up and down passage are arranged between the platforms. Guardrails are arranged on the edge of the platform and the handrails of the stairs. Platform plates are arranged on the surface of the platform, and a foldable platform is arranged on one side of each platform. Preferably, the detachable arc-shaped tunnel wall spraying device also includes a movably installed lifting mechanism, which includes a base, a winch, a hook, and a controller. The base part adopts a metal frame structure, and a connecting bolt hole is provided at the bottom of the base, which is fixed to the connection point reserved with the stand by bolts.

[0006] Compared with the prior art, the present invention provides a disassembled arc-shaped tunnel wall spraying device, which has the following beneficial effects: (1) The swing arm power mechanism, the telescopic swing arm, the spray gun bracket, and the spray mechanism are used in combination. Since the telescopic swing arm can be adjusted in length, the distance between the spray gun and the surface to be sprayed can be conveniently changed to meet the spraying requirements at different distances. The spraying angle can be flexibly adjusted by adjusting the swing arm power mechanism and / or changing the installation angle of the spray gun bracket, thereby achieving precise spraying of surfaces to be sprayed in various shapes and positions. The slurry in the spray mechanism can be evenly sprayed on the inner wall of the tunnel through the spray gun, and reciprocating spraying of the curved surface layer can be achieved. Compared with manual spraying, the present invention can adapt to continuous spraying operations in large spaces and curved surfaces, thereby improving operating efficiency.

[0007] (2) The walking mechanism enables the entire device to have the function of walking on a curved surface, and when it is necessary to spray a large area or multiple dispersed surfaces to be sprayed, the operation is extremely convenient, further improving efficiency.

[0008] (3) A ventilation and dust collection mechanism is provided. The dust generated during the spraying process can be cleaned and collected through the ventilation and dust collection mechanism, thereby improving the air quality of the working environment, reducing the harm of dust to operators, and preventing particulate matter during the spraying process from polluting the completed surface and the surface to be constructed, causing impurities, bubbles and other defects in the coating, further improving the quality and reliability of the product.

[0009] (4) The detachable workbench of the present invention can adapt to construction work surfaces of various shapes and sizes, and has strong applicability and flexibility. This quick installation workbench saves time and labor costs and improves work efficiency. The workbench is designed in layers, and personnel can perform related work on different layers. The workbench can be assembled in different sizes vertically and horizontally, and can adapt to construction work surfaces of various shapes and sizes, and has strong applicability and flexibility.

[0010] (5) A shielding mechanism is installed and fixed on the side and top of the stand. The shielding mechanism can be repeatedly disassembled and replaced. The shielding mechanism is designed to be a detachable structure, which is convenient for maintenance and cleaning inside the equipment. The shielding mechanism shields and protects the working environment and surrounding construction work surfaces, and can effectively prevent external dust from entering the stand, protect key components of the equipment, and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a detachable arc-shaped tunnel wall spraying device of the present invention; Figure 2 It is a side view of a detachable arc-shaped tunnel wall spraying device of the present invention; Figure 3 It is a schematic diagram of the walking mechanism structure; Figure 4 It is a structural schematic diagram of the swing arm power mechanism; Figure 5 It is a structural schematic diagram of the spray gun bracket; Figure 6 It is a structural schematic diagram of the limiting mechanism; Figure 7 This is a disassembly diagram of the limit mechanism; Figure 8 It is a structural diagram of the ventilation and dust collection mechanism. DETAILED DESCRIPTION

[0012] For better understanding and implementation, a specific embodiment is given below to explain in detail a detachable arc-shaped tunnel wall spraying device of the present invention.

[0013] A detachable arc-shaped tunnel wall spraying device according to this embodiment is shown in the attached Figure 1-2 , including: assembled platform 100, walking mechanism 200, swing arm power mechanism 300, telescopic swing arm 400, spray gun bracket 500, spraying mechanism 600, shielding mechanism 7, ventilation and dust collection mechanism 800, control console 9, movable lifting mechanism 10, power supply and distribution mechanism 11. The control console 9 of this embodiment can control the start and stop of each device and monitor the operation of the equipment in real time. The power supply and distribution mechanism 11 is composed of multiple distribution boxes and connecting lines, and each platform is equipped with a distribution box to meet the construction needs.

[0014] The assembled platform 100 is a steel structure frame assembled from steel components. The overall design is divided into multiple layers. The assembled platform includes a main steel structure component 101, which is fixed by bolts. The platform is provided with stairs 102 for up and down passage. The edge of the platform and the handrail of the stairs are provided with guardrails 103, which are made of glass fiber reinforced plastic materials. The guardrails are connected to the main structure by bolts or buckles. The platform surface is arranged with platform plates, and a material handling channel is provided at the end of each layer. A foldable platform 105 is provided at the channel position. The assembled platform 100 can be assembled in different sizes vertically and horizontally, and can adapt to construction work surfaces of various shapes and sizes, with strong applicability and flexibility. After the components are transported to the construction site, the movable lifting mechanism 10 can be operated to hoist each component into place for assembly. After the assembly of the first layer is completed, the movable lifting mechanism 10 is installed on the second-layer platform, and then the materials are hoisted into place in sequence, and the components of the second layer are assembled. By analogy, the assembly of the trolley with the required height is completed. This fast installation feature saves time and labor costs and improves work efficiency. The platform is designed in layers, so personnel can carry out related work on different layers, and a safety belt hanging point is set on the top of the platform.

[0015] The walking mechanism of this embodiment is shown in the attached Figure 3The walking mechanism 200 includes a motor, a reducer, a brake, etc. to form a whole, which is connected to the platform 100 through a connecting rod 201. A rotatable shaft 202 is provided at the end of the connecting rod, and the connecting rod is fixed to the platform through a diagonal brace 203. The bottom angle of the walking mechanism is achieved by adjusting the connection position between the diagonal brace and the platform, so that the angle of the walking mechanism can be adapted to the ground at different angles. Install suitable walking wheels 204. The wheels must have good load-bearing capacity and flexibility. Solid rubber wheels or metal wheels with shock-absorbing functions can be selected, and equipped with brake devices to facilitate fixing the position during operation. Both sides of the walking wheels 204 are provided with inclined surfaces 204-1 for easy movement on the curved surface.

[0016] The swing arm power mechanism 300 of this embodiment is shown in the attached Figure 4 The swing arm power mechanism 300 includes a motor 301, a reducer 302, and a reducer connecting shaft 303, which is connected and fixed to the spray telescopic swing arm 400. The telescopic swing arm 400 adopts a one-section or multi-section nested design, and the length is adjusted by hydraulic pressure or wire rope pulling. By adjusting the length of the telescopic swing arm, the distance between the spray gun and the working surface can be conveniently changed to meet the spraying requirements of different sizes; the motor speed is adjustable, and the rotation power is output to the swing arm after connecting the reducer, and reciprocating swing spraying is achieved by setting the forward and reverse rotation of the motor 301.

[0017] The end of the telescopic swing arm of this embodiment is equipped with a spray gun bracket 500, and a slot 501 is provided on the spray gun bracket 500 for mounting the spray gun. The side of the slot has a limit position 502. Figure 5-7 After the spray gun is installed, it can be limited and stuck to prevent it from falling. When the spray gun needs to be removed, the lock tongue 502a of the limiter 502 is manually opened, and the spray gun is pushed out along the direction of the slot. The limit mechanism 502 includes a lock tongue 502a, a spring 502b, a handle 502c, a first rotating shaft 502d-1, a second rotating shaft 502d-2, and a buckle cover 502e. The first rotating shaft 502d-1 is installed on the lock tongue 502a, and the second rotating shaft 502d-2 is installed on the spray gun bracket 500. The handle c502 is a movable rod. When the handle c502 is turned around the second rotating shaft 502d-2, the lock tongue 502a is driven to move to achieve unlocking. The spray gun bracket 500 is connected to the telescopic swing arm 400 by a connecting plate 503 and bolts. The connecting plate 503 can be rotated to change the direction of the spray gun, thereby achieving precise spraying of workpieces of various shapes and positions.

[0018] The spraying mechanism 600 of this embodiment includes a sprayer, an air compressor, a material delivery pipeline, a compressed air pipeline, and a material storage tank, which are installed on the first floor of the platform. The material storage device is selected according to the actual material, and a cylindrical material barrel is commonly used. When the sprayer 600 is working, the paint and high-pressure gas enter the sprayer through the pipeline and are transferred to the spray gun. After the spraying command is input, the paint is sprayed from the spray gun. The spray gun stops working after pressing the stop spraying button.

[0019] In this embodiment, a shielding mechanism 7 is fixedly installed on the side and top of the stand 100. The shielding mechanism 7 includes a detachable vertical shield 7-1 and a horizontal shield 7-2, both of which are installed at the upper position of one side of the stand 100. In order to achieve a better shielding effect, in conjunction with the arc structure of the tunnel, the vertical shield 7-1 is designed to be fan-shaped, and the horizontal shield 7-2 is designed to be rectangular. The shielding mechanism 7 uses a metal or polymer profile frame, and a polymer film is fixed on the outside. The shielding mechanism 7 is fixed to the stand 100 by bolts. The shielding mechanism 7 can be repeatedly disassembled, assembled and replaced. The shielding mechanism 7 is designed to be a detachable structure and is installed on the outside of the stand, which is convenient for maintenance and cleaning of the inside of the equipment, and can effectively prevent external dust from entering the stand, protect key components of the equipment, and extend the service life of the equipment.

[0020] The ventilation and dust collection mechanism 800 of this embodiment is shown in the attached Figure 8 The ventilation and dust collection mechanism 800 includes a fan 801, a pipeline 802, multiple air inlets 803, an air outlet 804, and a dust collecting device 805. The fan 801 and the dust collecting device 805 are installed on the pipeline 802. The pipeline 802 is composed of multiple horizontal pipelines and vertical pipelines. The vertical pipeline runs through the entire height direction of the platform 100. The horizontal pipeline matches the number of layers of the platform 100. Multiple air inlets 803 are arranged along the length direction of the horizontal pipeline, and the air inlets 803 can be opened and closed. The air inlet 803 is close to the spraying working area, and the air outlet 804 is arranged away from the spraying working area. A detachable plate filter is arranged inside the dust collecting device 805, and a pull-out tray is provided under the filter to facilitate timely cleaning of collected dust.

[0021] The movable lifting mechanism 10 of this embodiment is composed of a base 10a, a winch 10b, a hook 10c, and a controller 10d. The base part adopts a metal frame structure, such as an I-beam or a channel steel welded together, and a connecting bolt hole is provided at the bottom of the base, which is fixed with the connection point reserved by the bolt. The lifting load meets the requirements of the weight of the platform components and the material during the construction process. The core component of the lifting mechanism 10 is the winch, which is composed of a motor, a reducer, a drum, a brake, etc. The motor provides power, and drives the drum to rotate after the reducer decelerates and increases the torque. The wire rope is wound on the drum for lifting heavy objects. The lifting mechanism should be equipped with a reliable braking device to prevent the heavy objects from falling accidentally in the air. Common ones include electromagnetic brakes, disc brakes, etc., which can quickly brake the drum in emergency situations such as power failure. A centralized operation controller d10 is designed, on which control buttons are set, such as: buttons for controlling lifting and lowering, knobs for controlling the rotation direction and speed, etc. A limiter should also be set in the lifting height direction. When the weight is lifted to the set maximum height, the lifting circuit will be automatically cut off to avoid dangerous situations such as excessive winding of the wire rope or overloading of the crane arm.

[0022] It is important to note that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not limiting. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A detachable arc-shaped tunnel wall spraying device, characterized in that include: The platform comprises a traveling mechanism, a swing arm power mechanism, a telescopic swing arm, a spray gun bracket, a spraying mechanism, a control console, and a power supply and distribution mechanism; wherein the traveling mechanism is installed at the bottom of the platform and can drive the entire platform to move; the traveling mechanism, the swing arm power mechanism, and the spraying mechanism are controlled to work through the control console; the spray gun bracket is movably installed on the top of the telescopic swing arm; the spray gun installed on the spray gun bracket is connected to the spraying mechanism through a pipeline; the swing arm power mechanism drives the telescopic swing arm to swing back and forth with the connecting shaft as the axis, thereby driving the spray gun to move in an arc shape, and reciprocatingly spraying the arc-shaped wall of the tunnel is performed.

2. A detachable arc-shaped tunnel wall spraying device according to claim 1, characterized in that The detachable arc-shaped tunnel wall spraying device also includes a shielding mechanism, which includes a detachable vertical shield and a horizontal shield, both of which are installed at an upper position on one side of the platform.

3. A detachable arc-shaped tunnel wall spraying device according to claim 1 or 2, characterized in that The detachable arc-shaped tunnel wall spraying device also includes a ventilation and dust collection mechanism, which includes a fan, a pipeline, multiple air inlets, an air outlet, and a dust collection device. The fan and the dust collection device are installed on the pipeline. The pipeline is composed of multiple horizontal pipelines and vertical pipelines. The vertical pipeline runs through the entire height direction of the platform. The horizontal pipeline matches the number of layers of the platform. Multiple air inlets are arranged along the length direction of the horizontal pipeline, and the air inlets can be opened and closed. The air inlet is close to the spraying work area, and the air outlet is arranged away from the spraying operation area. A detachable plate filter is arranged inside the dust collection device, and a pull-out tray is provided under the filter.

4. A detachable arc-shaped tunnel wall spraying device according to claim 1, characterized in that The swing arm power mechanism includes a motor, a reducer, and a reducer connecting shaft. The reducer connecting shaft is fixedly connected to one end of the spray telescopic swing arm. The telescopic swing arm adopts a one-section or multi-section nested design with adjustable length. Reciprocating swing spraying is achieved by setting the motor forward and reverse rotation.

5. A detachable arc-shaped tunnel wall spraying device according to claim 1 or 4, characterized in that The spray gun bracket is provided with a plurality of slots for installing the spray gun, and the side of the slot is provided with a limiting mechanism. After the spray gun is installed, it can be limited and locked to prevent it from falling. When the spray gun needs to be removed, the limiting mechanism is manually opened and the spray gun is pushed out along the slot. The limiting mechanism includes a locking tongue, a spring, a handle, a first rotating shaft, a second rotating shaft, and a buckle cover. The spray gun bracket and the telescopic swing arm are connected by a connecting plate and bolts, and the connecting plate can be rotated to change the direction of the spray gun.

6. A detachable arc-shaped tunnel wall spraying device according to claim 1, characterized in that The walking mechanism includes a motor, a reducer, a brake, and multiple walking wheels with braking function. The walking mechanism is connected to the platform through a connecting rod and a diagonal brace. A rotatable shaft is provided at the top of the connecting rod. The bottom angle of the walking mechanism can be adjusted by adjusting the connection position of the diagonal brace and the platform. Both sides of the walking wheel are provided with inclined surfaces for easy movement on the curved surface.

7. A detachable arc-shaped tunnel wall spraying device according to claim 1 or 6, characterized in that The platform is a steel structure frame assembled from steel components, with a multi-layer design as a whole. The platform includes multiple steel structure components, which are fixed by bolts. Multiple platforms are installed on the steel structure components, and stairs for up and down traffic are set between the platforms. Guardrails are set on the platform edges and stair handrails. Platform plates are arranged on the platform surface, and a foldable platform is set on one side of each platform.

8. A detachable arc-shaped tunnel wall spraying device according to claim 7, characterized in that The detachable arc-shaped tunnel wall spraying device also includes a movably installed lifting mechanism, which includes a base, a winch, a hook, and a controller. The base part adopts a metal frame structure, and a connecting bolt hole is provided at the bottom of the base, which is fixed to the connection point reserved by bolts with the stand.

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