An asphalt mastic scraper

Abstract

This invention provides an asphalt mastic coating machine, including a traveling mechanism with a material storage mechanism mounted on it. A hydraulic drive system is located on the outside of the material storage mechanism and mounted on the traveling mechanism. A coating mechanism is installed at the end of the hydraulic drive system. This invention offers the following advantages: Through a thickness monitoring system and an automatic lifting and adjusting mechanism, it effectively controls coating thickness deviation; real-time temperature monitoring and an automatic heat-preserving and mixing system ensure that the asphalt mastic remains in optimal performance during construction, improving the material's adhesion, impermeability, and construction quality.

Description

Technical Field

[0001] This invention is an asphalt mastic scraping machine, belonging to the field of building construction technology. Background Technology

[0002] As a high-performance composite modified asphalt material, asphalt mastic has been widely used in various engineering fields such as water conservancy and hydropower, and highway transportation due to its excellent impermeability, adhesion, crack resistance, and durability. In water conservancy and hydropower projects, especially in the asphalt concrete panel seepage prevention system of pumped storage power stations, the sealing layer, as the outermost protective structure of the panel, generally uses asphalt mastic material with a thickness of 2mm. Its main function is to prevent external impurities from penetrating the seepage prevention layer and reduce the erosion and damage to the seepage prevention layer caused by external factors such as ultraviolet rays and temperature changes, directly affecting the service life and reliability of the entire seepage prevention system.

[0003] Currently, the application of asphalt mastic in China mainly employs two methods: manual scraping and simple mechanical assistance. Manual scraping relies on workers using hand-held scrapers or trowels, which suffers from drawbacks such as inconsistent application quality, low efficiency, difficulty in temperature control, higher safety risks, limited functionality, poor adaptability, and low automation.

[0004] Specifically, manual operation makes it difficult to ensure uniform coating thickness, which can easily lead to quality problems such as uneven thickness, missed coating, and bubbles. The thickness deviation usually exceeds ±1mm, which seriously affects the anti-seepage effect. Manual scraping is slow and cannot meet the construction progress requirements of large-scale projects. Moreover, the labor intensity is extremely high, which can easily lead to worker fatigue and further reduce the construction quality and safety. The construction performance of asphalt mastic is extremely sensitive to temperature, and the suitable construction temperature range is narrow. Manual construction cannot monitor and control material and ambient temperatures in real time. Low temperatures lead to poor material flowability and insufficient adhesion, while high temperatures cause asphalt aging, affecting material performance. High-temperature asphalt mastic can easily cause burns, and manual operation poses a significant fall hazard on sloping surfaces such as pumped-storage power station reservoir slopes. Most equipment only has basic discharging and scraping functions, lacking real-time monitoring and automatic control capabilities for key construction parameters such as thickness, temperature, and trajectory. Existing equipment is mainly suitable for flat operations and cannot meet the construction needs of sloping surfaces such as pumped-storage power station reservoir slopes, and adjusting the scraping width and thickness is inconvenient. Material performance is difficult to guarantee: most equipment storage tanks lack effective mixing and insulation systems, easily leading to segregation, uneven temperature, and rapid temperature drop during storage, affecting construction quality. Existing equipment still requires full manual operation and cannot achieve unmanned driving and remote control; construction safety and efficiency in complex terrain and hazardous environments still need improvement.

[0005] In conclusion, existing asphalt mastic application technologies and equipment can no longer meet the requirements of modern engineering construction for construction quality, efficiency, safety, and intelligent management. There is an urgent need to develop an asphalt mastic application equipment that integrates automation, intelligence, and multiple functions. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide an asphalt mastic scraping machine.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0008] An asphalt mastic scraping machine includes a traveling mechanism, a material storage mechanism mounted on the traveling mechanism, a hydraulic drive system located on the outside of the material storage mechanism, the hydraulic drive system mounted on the traveling mechanism, and a scraping mechanism mounted at the end of the hydraulic drive system.

[0009] Furthermore, the walking mechanism includes a self-propelled wheeled chassis, on which an unmanned driving module and a remote control receiving module are installed, and a standard traction connection point is provided at the front end of the self-propelled wheeled chassis.

[0010] Furthermore, the hydraulic drive system includes a bracket, on which a first hydraulic cylinder is movably connected. The telescopic end of the first hydraulic cylinder is connected to a mounting plate via a hinge seat. A support arm is connected to each end of the mounting plate, and the end of the support arm is movably connected to the top of the self-propelled wheeled chassis.

[0011] Furthermore, the storage mechanism includes a vertical storage tank, which is installed on the top of the self-propelled wheeled chassis. A drive motor is installed on the top of the vertical storage tank, and the drive end of the drive motor is connected to a stirrer rotatably connected inside the vertical storage tank. Several electric heating and heat preservation devices are provided inside the vertical storage tank.

[0012] Furthermore, the inner wall of the vertical storage tank is filled with high-temperature resistant insulation material, and the top and bottom of the vertical storage tank are respectively provided with a feed inlet and a discharge outlet, and an electric hydraulic gate valve is installed on the discharge outlet.

[0013] Furthermore, one bottom end of the vertical storage tank is movably connected to one side of the top of the self-propelled wheeled chassis via a shaft, and the other bottom end of the vertical storage tank is movably connected to the other side of the top of the self-propelled wheeled chassis via an electric push rod.

[0014] Furthermore, the coating mechanism includes two sets of second hydraulic cylinders installed at the bottom of the mounting plate, with the bottom output end of the second hydraulic cylinders being movably connected to the top of the coating plate frame.

[0015] Furthermore, the digital monitoring mechanism includes a thickness monitoring module, a temperature monitoring module, a trajectory and area monitoring module, and a data processing and transmission module. The thickness monitoring module includes a laser rangefinder sensor, which is installed on the front side of the self-propelled wheeled chassis and the rear side of the coating scraper frame. The temperature monitoring module includes a storage tank temperature sensor, a discharge port temperature sensor, and an ambient temperature sensor, which are installed on the vertical storage tank, the discharge port, and the self-propelled wheeled chassis. The trajectory and area monitoring module includes a GPS positioning device, which is installed on the self-propelled wheeled chassis. The data processing and transmission module includes a processing chip and a wireless signal transceiver, which are installed on the self-propelled wheeled chassis through a protective shell.

[0016] Furthermore, the intelligent control mechanism includes a PLC programmable controller, a touch screen, and a memory, wherein the PLC programmable controller is electrically connected to the touch screen, the memory, and the digital monitoring mechanism.

[0017] The beneficial effects of this invention are:

[0018] This invention effectively controls the coating thickness deviation through a thickness monitoring system and an automatic lifting and adjusting mechanism. Real-time temperature monitoring and an automatic heat preservation and mixing system ensure that the asphalt mastic is always in the best performance state during construction, thereby improving the material's adhesion, impermeability, and construction quality.

[0019] This invention significantly improves construction speed, and the ability to operate autonomously and continuously further shortens the construction cycle and reduces project costs.

[0020] This invention integrates a digital monitoring system and an intelligent control system, enabling automated, digital, and intelligent management of the construction process. All key construction parameters can be monitored, recorded, and transmitted in real time, achieving traceable management of construction quality.

[0021] This invention allows for autonomous construction on flat surfaces at the bottom of reservoirs, and also enables safe construction on sloping surfaces such as the slopes of pumped-storage power station reservoirs via a traction connection point and a winch. The coating thickness and width can be flexibly adjusted according to different project requirements, making it suitable for asphalt mastic application in various industries such as water conservancy and hydropower, highway transportation, and bridge engineering.

[0022] This invention enables unmanned operation and remote control, allowing operators to work from a safe distance and avoiding safety risks such as burns from high temperatures and falls from slopes. A comprehensive fault diagnosis and alarm system enhances the reliability and safety of equipment operation.

[0023] The precise control of the output and the uniform coating effect of this invention reduce material waste. The electric heating and insulation system is cleaner and more environmentally friendly than traditional fuel heating, and consumes less energy. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of an asphalt mastic coating machine according to the present invention;

[0026] Figure 2 This is a schematic diagram of the walking mechanism of an asphalt mastic scraper according to the present invention;

[0027] Figure 3 This is a schematic diagram of the material storage mechanism of an asphalt mastic scraper according to the present invention;

[0028] Figure 4 This is a schematic diagram of the scraping mechanism of an asphalt mastic scraping machine according to the present invention;

[0029] Figure 5 This is a schematic diagram of the digital monitoring mechanism of an asphalt mastic scraping machine according to the present invention.

[0030] In the diagram, 1. Walking mechanism; 2. Material storage mechanism; 3. Scraping mechanism; 4. Hydraulic drive system; 5. Digital monitoring mechanism; 6. Intelligent control mechanism; 7. Self-propelled wheeled chassis; 8. Unmanned driving module; 9. Remote control receiving module; 10. Standard traction connection point; 11. Vertical storage tank; 12. Drive motor; 13. Agitator; 14. Electric heating and insulation device; 15. Storage tank temperature sensor; 16. Inlet; 17. Outlet; 18. Electro-hydraulic gate valve; 19. Electric push rod; 20. Support; 21. First hydraulic cylinder; 22. Mounting plate; 23. Support arm; 24. Second hydraulic cylinder; 25. Scraping plate frame; 26. Thickness monitoring module; 27. Ambient temperature sensor; 28. GPS positioning device. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-5 This invention provides a technical solution for an asphalt mastic scraping machine, including a walking mechanism 1, a material storage mechanism 2 installed on the walking mechanism 1, a hydraulic drive system 4 located on the outside of the material storage mechanism 2, the hydraulic drive system 4 mounted on the walking mechanism 1, and a scraping mechanism 3 installed at the end of the hydraulic drive system 4. The walking mechanism 1 includes a self-propelled wheeled chassis 7, which is equipped with a servo motor and a reducer for driving the self-propelled wheeled chassis 7 to move. An unmanned driving module 8 and a remote control receiving module 9 are installed on the self-propelled wheeled chassis 7. A standard traction connection point 10 is provided at the front end of the self-propelled wheeled chassis 7, which can be connected to a winch system at the top of the slope via a steel wire rope, forming a double safety guarantee. The walking mechanism 1 integrates the unmanned driving module and the remote control receiving module. Operators can control the forward, backward, turning, and speed adjustment of the equipment through a wireless remote control in a safe area, or input construction parameters in advance, and the equipment can autonomously complete the construction task.

[0033] See Figure 1 The hydraulic drive system 4 includes a bracket 20, on which a first hydraulic cylinder 21 is movably connected. The telescopic end of the first hydraulic cylinder 21 is connected to a mounting plate 22 via a hinge seat. A support arm 23 is connected to each end of the mounting plate 22, and the end of the support arm 23 is movably connected to the top of the self-propelled wheeled chassis 7. The hydraulic drive system 4 is composed of a variable displacement piston pump and a multi-way directional valve, providing power for all vehicle movements. It is equipped with an oil temperature sensor, a pressure sensor, and an oil level sensor to monitor the working status of the hydraulic system in real time and ensure the safe and reliable operation of the system.

[0034] See Figure 3 The storage mechanism 2 includes a vertical storage tank 11, which is a double-layer stainless steel structure with high-temperature resistant insulation material filling the inner wall. The top and bottom of the vertical storage tank 11 are respectively provided with an inlet 16 and an outlet 17. An electric hydraulic gate valve 18 is installed on the outlet 17. The vertical storage tank 11 is installed on the top of the self-propelled wheeled chassis 7. A drive motor 12 is installed on the top of the vertical storage tank 11. The drive end of the drive motor 12 is connected to a stirrer 13 rotatably connected inside the vertical storage tank 11. The motor drives the stirrer 13 to rotate, ensuring that the asphalt mastic mixture is always in a uniform state. The vertical storage tank 11 is provided with several electric heating and insulation devices 14, which can stably control the temperature of the mixture within the optimal construction temperature range.

[0035] See Figure 1One bottom end of the vertical storage tank 11 is movably connected to the top side of the self-propelled wheeled chassis 7 via a shaft, and the other bottom end of the vertical storage tank 11 is movably connected to the top side of the self-propelled wheeled chassis 7 via an electric push rod 19; during use, the tilt angle of the vertical storage tank 11 can be adjusted by the electric push rod 19.

[0036] See Figure 4 The coating mechanism 3 includes two sets of second hydraulic cylinders 24 installed at the bottom of the mounting plate 22, equipped with displacement sensors, which can accurately control the lifting height of the coating device, thereby achieving precise control of the coating thickness. The bottom output end of the second hydraulic cylinder 24 is movably connected to the top end of the coating plate frame 25, which uses a silicone scraper.

[0037] See Figure 5The digital monitoring mechanism 5 includes a thickness monitoring module 26, a temperature monitoring module, a trajectory and area monitoring module, and a data processing and transmission module. The thickness monitoring module 26 includes a laser rangefinder sensor, which is installed on the front side of the self-propelled wheeled chassis 7 and the rear side of the coating plate frame 25. It monitors the height of the base surface before coating and the height of the surface after coating in real time, calculating the actual coating thickness. The temperature monitoring module includes a storage tank temperature sensor 15, a discharge port temperature sensor, and an ambient temperature sensor 27. These sensors are installed on the vertical storage tank 11, the discharge port 17, and the self-propelled wheeled chassis 7. The storage tank temperature sensor 15 is a platinum resistance temperature sensor to monitor the internal temperature of the mixture. The ambient temperature sensor 27 consists of two infrared temperature sensors installed behind the coating mechanism 3 for monitoring... The surface temperature after coating; the trajectory and area monitoring module includes a GPS positioning device 28, which is installed on the self-propelled wheeled chassis 7 to record the equipment's travel trajectory in real time and automatically calculate the completed construction area; the data processing and transmission module includes a processing chip and a wireless signal transceiver, which are installed on the self-propelled wheeled chassis 7 through a protective shell; the intelligent control mechanism 6 includes a PLC programmable controller, a touch screen, and a memory, which are electrically connected to the touch screen, the memory, and the digital monitoring mechanism 5; the operator can set construction parameters, such as coating thickness, travel speed, and output, through the touch screen. The intelligent control system receives data from each monitoring module in real time. When the coating thickness exceeds the allowable range, the height of the coating device is automatically adjusted; when the temperature of the mixture is lower than the set value, the heat preservation device is automatically activated. All construction data is stored in local memory in real time.

[0038] The circuits and electronic components, modules and controllers, or the heat dissipation holes and maintenance doors in the space of the adapted electrical equipment are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this application does not involve improvements to software and methods or heat dissipation and maintenance.

[0039] In use, asphalt mastic mixture is first injected into the vertical storage tank 11 through the inlet 16. The electric heating and insulation device 14 is then activated to heat the mixture to a suitable construction temperature (usually 180℃-220℃). Simultaneously, the drive motor 12 is started to rotate the mixer 13, ensuring uniform heating of the mixture and preventing segregation. Operators can preset construction parameters such as coating thickness, walking speed, and output rate through the touch screen of the intelligent control mechanism 6.

[0040] After construction begins, the self-propelled wheeled chassis 7 of the walking mechanism 1 autonomously moves along the construction path under the control of the unmanned driving module 8 or the remote control receiving module 9. Simultaneously, the electro-hydraulic gate valve 18 opens, and the asphalt mastic mixture in the vertical storage tank 11 flows out from the discharge port 17 under gravity, falling onto the ground to be constructed. The hydraulic drive system 4 provides power to drive the first hydraulic cylinder 21 to extend and retract, adjusting the overall height and angle of the scraping mechanism 3 via the mounting plate 22 and the support arm 23 to adapt to the construction needs of different slopes or terrains.

[0041] During the coating process, two sets of second hydraulic cylinders 24 precisely control the lifting height of the coating frame 25 according to preset thickness parameters. The silicone scraper at the bottom of the coating frame 25 moves forward with the equipment, leveling and compacting the asphalt mastic mixture on the ground to form a coating of uniform thickness. When working on a slope, one end of a steel wire rope is connected to the standard traction connection point 10 at the front of the self-propelled wheeled chassis 7, and the other end is connected to the winch system at the top of the slope, forming a double safety guarantee to prevent equipment slippage.

[0042] During construction, the digital monitoring unit 5 collects various key data in real time. For thickness monitoring, a laser rangefinder installed on the front of the self-propelled wheeled chassis 7 measures the height of the base surface before coating, and a laser rangefinder installed on the rear of the coating plate frame 25 measures the height of the surface after coating. The difference between the two is the actual coating thickness. When the measured thickness deviates from the preset value, the intelligent control unit 6 automatically adjusts the extension and retraction of the second hydraulic cylinder 24 for correction. For temperature monitoring, the storage tank temperature sensor 15 monitors the temperature of the mixture inside the vertical storage tank 11 in real time, the outlet temperature sensor monitors the temperature at the moment of discharge, and the ambient temperature sensor 27 monitors the surface temperature of the coating after coating. When the temperature of the mixture is lower than the set lower limit, the intelligent control unit 6 automatically activates the electric heating and insulation device 14 for compensatory heating. For trajectory and area monitoring, the GPS positioning device 28 records the equipment's travel trajectory in real time and automatically accumulates the completed construction area. All monitoring data is stored in local memory in real time and uploaded to a remote monitoring platform via a wireless signal transceiver, enabling traceable management of construction quality.

[0043] After construction is completed, the electric hydraulic gate valve 18 is closed to stop material discharge. The tilt angle of the vertical storage tank 11 is adjusted by the electric push rod 19 to discharge the residual mixture, which facilitates cleaning the inside of the storage tank.

[0044] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An asphalt mastic coating machine, characterized in that, include: Walking mechanism (1), used to provide movement support; The storage mechanism (2) is installed in the middle of the walking mechanism (1) and is used to store asphalt mastic mixture; The coating mechanism (3) is installed in front of the traveling mechanism (1) and is used to control the coating thickness; A hydraulic drive system (4) is installed at the front end of the walking mechanism (1), and its telescopic end is connected to the scraping mechanism (3) to adjust the position of the scraping mechanism (3).

2. The asphalt mastic coating machine according to claim 1, characterized in that, The walking mechanism (1) includes: A self-propelled wheeled chassis (7) is used to provide mobility support; An unmanned driving module (8) is installed on the self-propelled wheeled chassis (7) and is used to control the movement of the self-propelled wheeled chassis (7); A remote control receiver module (9) is installed on the self-propelled wheeled chassis (7) for remotely transmitting driving signals; The standard traction connection point (10) is installed at the front end of the self-propelled wheeled chassis (7) for winch connection to realize traction construction.

3. The asphalt mastic coating machine according to claim 2, characterized in that, The hydraulic drive system (4) includes: A bracket (20) is fixed to the front end of the self-propelled wheeled chassis (7) to provide support; The first hydraulic cylinder (21) is movably connected to the bracket (20) and is used for telescopic lifting; The mounting plate (22) is movably connected at its top end to the telescopic end of the first hydraulic cylinder (21) via a hinge seat, and is connected to the support arm (23) on both sides. The end of the support arm (23) is movably connected to the top of the self-propelled wheeled chassis (7) to provide rotational support.

4. The asphalt mastic coating machine according to claim 3, characterized in that, The storage mechanism (2) includes: A vertical storage tank (11) is installed on the top of the self-propelled wheeled chassis (7). The top and bottom of the vertical storage tank (11) are respectively provided with an inlet (16) and an outlet (17) for storing asphalt mastic mixture. A mixer (13) is rotatably connected inside the vertical storage tank (11) for mixing asphalt mastic mixture; A drive motor (12) is installed on the top of the vertical storage tank (11), and the drive end is connected to the agitator (13) to drive the agitator (13) to rotate. An electric heating and heat preservation device (14) is arranged around the inner wall of the vertical storage tank (11) to control the temperature inside the vertical storage tank (11).

5. An asphalt mastic coating machine according to claim 4, characterized in that, The inner wall of the vertical storage tank (11) is filled with high-temperature resistant insulation material, and an electric hydraulic gate valve (18) is installed on the discharge port (17).

6. The asphalt mastic scraper according to claim 5, characterized in that, One bottom end of the vertical storage tank (11) is movably connected to the top side of the self-propelled wheeled chassis (7) via a shaft, and the other bottom end of the vertical storage tank (11) is movably connected to the top side of the self-propelled wheeled chassis (7) via an electric push rod (19).

7. An asphalt mastic coating machine according to claim 6, characterized in that, The coating mechanism (3) includes: The second hydraulic cylinder (24) is symmetrically mounted on the bottom of the mounting plate (22) for providing telescopic adjustment; The scraper frame (25) is installed at the bottom of the second hydraulic cylinder (24).

8. An asphalt mastic coating machine according to claim 7, characterized in that, The digital monitoring agency (5) includes: A thickness monitoring module (26) is installed on the front side of the self-propelled wheeled chassis (7) and the rear side of the scraper frame (25) for real-time monitoring of the scraping thickness; The temperature monitoring module includes a storage tank temperature sensor 15, a discharge port temperature sensor and an ambient temperature sensor 27, which are respectively installed on the vertical storage tank (11), the discharge port (17) and the self-propelled wheeled chassis (7) to detect the temperature of the vertical storage tank (11) and the scraping mechanism (3); The trajectory and area monitoring module includes a GPS positioning device (28), which is installed on the self-propelled wheeled chassis (7) and is used to record the driving trajectory of the equipment and calculate the construction area in real time. The data processing and transmission module, including a processing chip and a wireless signal transceiver, is installed on the self-propelled wheeled chassis (7) and is used for data processing and data transmission.

9. An asphalt mastic scraper according to claim 8, characterized in that, The intelligent control mechanism (6) includes: A programmable logic controller (PLC) is installed on the electrical control box and used for signal control. The touch screen, installed on the electrical control box, is used for human-computer interaction; The memory, installed on the electrical control box, is used for data storage.

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