Automatic spreading and crack self-adaptive follow-up device and method for roof modified asphalt

Abstract

The present application relates to the technical field of building waterproof construction machinery and equipment, and discloses a roof modified asphalt automatic spreading and crack self-adaptive follow-up device and method, which comprises a vehicle body, the upper surface of the vehicle body is provided with a motor seat, the upper surface of the motor seat is provided with a motor one, the output end of the motor one is fixedly provided with a bevel gear two, the tooth end of the bevel gear two is meshed and connected with a bevel gear one, the middle part of the bevel gear one is fixedly provided with a connecting shaft, one end of the connecting shaft is provided with a heating mechanism, the other end of the connecting shaft penetrates through a feeding shell and is fixedly provided with a rotating shaft three, and the middle part of the rotating shaft three is provided with a ventilation cavity. The rotating shaft three is rotated by the motor one driving the nozzle and the auger blade two, internal direct injection heating and synchronous flow pushing are further achieved, and therefore the problem that the traditional heating equipment mostly adopts a static jacket structure, the heat conduction path to the inner core is too long, and the inner core material melting is not complete is improved.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology for building waterproofing construction, specifically to an automatic spreading and crack adaptive follow-up device and method for modified asphalt on roofs. Background Technology

[0002] Traditional asphalt heating and conveying equipment mostly adopts a static jacketed heat transfer structure, relying on the temperature difference of the pipe wall for unidirectional heat transfer inward. Due to the high viscosity and low thermal conductivity of modified asphalt, the physical path of external heat conduction to the inner core is too long and attenuated significantly, resulting in a large radial temperature gradient across the cross-section of the conveying pipe. This creates a heterogeneous physical form where the outer layer is molten while the center remains a solid mass. When the solid spiral shaft applies axial mechanical pushing force, the incompletely molten rigid material not only cannot pass smoothly through the outlet, but also generates huge mechanical jamming and dry friction resistance between the spiral blades and the inner wall of the pipe. This leads to physical overload of the conveying motor and torsional deformation of the drive shaft, resulting in incomplete melting of the modified asphalt material in the inner core. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an automatic spreading and crack adaptive follow-up device and method for modified asphalt on roofs. This improves upon the problem that traditional asphalt heating and dispersing equipment mostly adopts a static jacketed heat transfer structure, which results in incomplete melting of the modified asphalt material in the core due to the excessively long physical path of external heat conduction to the inner core and uneven heating in the center.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic paving and crack adaptive follow-up device for modified asphalt on roofs, comprising a vehicle body, a motor base on the upper surface of the vehicle body, a motor on the upper surface of the motor base, a bevel gear two fixedly mounted at the output end of the motor one, the teeth of the bevel gear two meshing with the bevel gear one, a connecting shaft fixedly mounted in the middle of the bevel gear one, a heating mechanism at one end of the connecting shaft, and a rotating shaft three fixedly mounted through a material conveying shell at the other end of the connecting shaft, a ventilation chamber in the middle of the rotating shaft three, an auger blade two on the outer wall of the rotating shaft three, the auger blade two being disposed inside the rotating shaft three, a plurality of nozzles on the outer wall of the rotating shaft three, a scraper block on one side of each nozzle, a material leakage port at the bottom end of each scraper block, a discharge port one at one end of the material conveying shell, and a discharge mechanism at one end of the discharge port one.

[0005] By adopting the above technical solution, the motor drives the rotating shaft 3 with the venting chamber nozzle and the screw conveyor blade 2 to rotate inside the material conveying shell. At the same time, the material is melted by the direct injection of heat source inside, and the spiral blades push the material to the outlet. This improves the problem that most traditional asphalt heating and pushing equipment adopts a static jacket heat transfer structure. Due to the long physical path of external heat conduction to the inner core and uneven heating in the center, the modified asphalt material in the inner core is not completely melted.

[0006] Optionally, the heating mechanism includes an air source heat pump, the bottom of which is disposed on the upper surface of the vehicle body, a cooling mechanism is disposed on one side of the upper surface of the vehicle body, a connecting pipe is fixedly disposed at the output end of the air source heat pump, a bearing is disposed at one end of the connecting pipe, and the outer wall of the bearing is disposed on the inner wall of one end of the connecting shaft.

[0007] Optionally, the discharge mechanism includes a second connecting pipe, the outer wall of which is disposed at one end of a first discharge port, two second discharge pipes are symmetrically arranged at both ends of the second connecting pipe, a second discharge port is disposed at one end of the second discharge pipe, a connecting pipe is disposed on the outer wall of the second discharge pipe, a first discharge pipe is disposed in the middle of the connecting pipe, and an adaptive mechanism is disposed at one end of the first discharge pipe.

[0008] Optionally, the adaptive mechanism includes a bearing, the outer wall of which is disposed at one end of a discharge pipe, a discharge pipe three is disposed in the middle of the bearing, a discharge port three is disposed at the bottom end of the discharge pipe three, a rotating shaft two is symmetrically disposed on the outer wall of the discharge pipe three, a guide wheel is rotatably connected to one end of the rotating shaft two, and a probe is fixedly disposed on the other side wall of the discharge pipe three.

[0009] Optionally, the cooling mechanism includes a fan, the bottom of which is located on one side of the upper surface of the vehicle body. A connecting pipe three is fixedly installed at the output end of the fan. An air duct is installed through the interior of the connecting pipe three, penetrating the vehicle body. A nozzle is installed on the outer wall of the air duct, and baffles are installed at both ends of the air duct.

[0010] Optionally, the bottom end of the vehicle body is symmetrically provided with wheel plates, the lower surface of the wheel plates is provided with casters, the bottom end of the vehicle body is symmetrically provided with baffles, a rotating shaft is provided on one side of the middle of the baffle, a pressure roller is provided at one end of the rotating shaft, a paving plate is provided at one end of the baffle, a scraper is provided on the outer wall of the pressure roller, the two ends of the scraper are provided on the inner wall of the scraper, and a fixing mechanism is provided on the upper surface of the vehicle body.

[0011] Optionally, the fixing mechanism includes two support plates, the bottom end of the support plates is disposed on the upper surface of the vehicle body, the top end of the support plates is disposed on a fixing plate, and the middle part of the fixing plate is disposed on a feeding mechanism.

[0012] Optionally, the feeding mechanism includes a feeding hopper, the outer wall of which is located in the middle of the fixed plate, a cover plate at the top of the feeding hopper, a funnel on the upper surface of the cover plate, a second motor on the upper surface of the cover plate, a bevel gear four fixedly mounted at the output end of the second motor, a bevel gear three meshing with the tooth end of the fourth bevel gear, a rotating shaft four penetrating the cover plate at the bottom end of the third bevel gear, an auger blade one mounted on the outer wall of the rotating shaft four, and the auger blade one located inside the feeding hopper.

[0013] Optionally, the outer wall of the rotating shaft is provided with a plurality of connecting rods, one end of the connecting rod is provided with a scraper, one side of the scraper is attached to the inner wall of the feed hopper, the bottom end of the feed hopper is provided with a connection port, and the bottom end of the connection port is located on the outer wall of the conveying shell.

[0014] The method for using the automatic spreading and crack adaptive tracking device for modified asphalt roofing includes the following steps: S1. The modified asphalt raw material for roofing is put into the funnel. The second motor drives the fourth bevel gear to rotate the third bevel gear, which in turn drives the fourth rotating shaft and the first auger blade to rotate inside the feeding hopper, so as to initially mix the modified asphalt raw material for roofing and transport it to the inside of the conveying shell through the connection port at the bottom of the feeding hopper. S2. Start the air source heat pump. Hot air is sent into the ventilation chamber in the middle of the rotating shaft three through the connecting pipe one, and sprayed out through the nozzle on the outer wall of the rotating shaft three to heat and melt the roof modified asphalt raw material inside the conveying shell. At the same time, the motor one drives the bevel gear two to rotate the bevel gear one, which in turn drives the connecting shaft, the rotating shaft three and the auger blade two to rotate synchronously, continuously pushing the molten roof modified asphalt raw material towards the discharge port one. S3. Molten roof modified asphalt raw material is discharged from outlet one into connecting pipe two and physically diverted: the first part of the raw material is discharged from outlet two through outlet two on both sides and spread on a large area under the vehicle body; the second part of the raw material enters outlet one through the connecting pipe in the middle. At this time, the probe at the bottom of outlet three is embedded in the roof crack. As the vehicle body moves forward, the tortuous sidewall of the roof crack applies lateral physical extrusion force to the probe, forcing outlet three to undergo purely mechanical adaptive deflection at the bottom of outlet one based on bearing one, so that outlet three is always accurately aligned with the roof crack for follow-up injection. S4. As the vehicle continues to move forward, the paving plate at the bottom initially scrapes the paved modified asphalt material on the roof, and then the pressure roller driven by the rotating shaft compacts the modified asphalt material on the roof. At the same time, the fan sends cold air into the air duct through the connecting pipe three, and blows it onto the surface of the compacted modified asphalt material on the roof through the air nozzle to cool it down, accelerate the curing and forming of the waterproof coating, and complete the closed loop of the roof paving operation.

[0015] This invention provides an automatic spreading and crack-adaptive tracking device and method for modified asphalt on roofs. It has the following beneficial effects: 1. This invention uses a motor to drive a rotating shaft 3 with a venting chamber nozzle and an auger blade 2 to rotate inside the material conveying shell. This allows the material to be melted by direct injection of heat source inside while the spiral blades push the material towards the outlet. This improves the problem that most traditional asphalt heating and pushing equipment uses a static jacket heat transfer structure. Due to the long physical path of external heat conduction to the inner core and uneven heating in the center, the modified asphalt material in the inner core does not melt completely.

[0016] 2. This invention uses a probe embedded in the crack to receive lateral mechanical extrusion force and, in conjunction with bearing one, releases rotational freedom, thereby forcing the discharge pipe three to passively deflect based on physical force, achieving alignment between the discharge port and the crack. This improves upon the problem that traditional crack tracking devices mostly use electronic vision sensors to sense the trajectory, which are prone to contamination and failure in high-temperature and dusty physical environments, resulting in serious deviation of the trajectory at the glue injection execution end.

[0017] 3. This invention uses a paving plate at the bottom of the vehicle body to horizontally level the surface and relies on the pressure roller for gravity compaction. At the same time, a scraper is used to mechanically scrape the outer wall of the pressure roller, thereby achieving physical shaping and compaction and anti-adhesion self-cleaning during travel. This improves the problem that most traditional asphalt paving equipment uses smooth drum rollers without scraping parts. Because the surface of the smooth drum is very easy to physically adhere to and pull high-viscosity asphalt, it causes mechanical tearing of the waterproof layer surface.

[0018] 4. In this invention, the motor drives the shaft four via gear transmission to drive the auger blade one to spiral and push within the feed hopper. The scraper blades slide and mechanically peel off the material by adhering closely to the inner wall, thereby forcing the high-viscosity material to overcome the static friction of the pipe wall and move downwards. This improves upon the problem that traditional feeding devices mostly use conical hoppers that rely solely on the material's own weight to drop it freely. Because easily agglomerated materials tend to physically adhere and accumulate on the contraction side wall, forming an arch bridge, the feed inlet is completely blocked and the flow is interrupted. Attached Figure Description

[0019] Figure 1 This is a three-dimensional front view of the automatic spreading and crack adaptive tracking device for modified asphalt roofing provided by the present invention. Figure 2 This is a rear three-dimensional schematic diagram of the automatic spreading and crack adaptive follow-up device for modified asphalt roofing provided by the present invention. Figure 3 A three-dimensional schematic diagram of a partial structure at the fan of the automatic spreading and crack adaptive follow-up device for modified asphalt roofing provided by the present invention; Figure 4 A three-dimensional schematic diagram of two partial structural points of the connecting pipe of the automatic spreading and crack adaptive follow-up device for modified asphalt roofing provided by the present invention; Figure 5 A three-dimensional schematic diagram of a partial structure at the air source heat pump of the automatic spreading and crack adaptive follow-up device for modified asphalt roofing provided by the present invention; Figure 6 A three-dimensional schematic diagram of a partial structure of the motor in the automatic spreading and crack adaptive follow-up device for modified asphalt roofing provided by the present invention; Figure 7 A three-dimensional schematic diagram of three partial structural features of the rotating shaft of the automatic spreading and crack adaptive follow-up device for modified asphalt roofing provided by the present invention; Figure 8 A three-dimensional schematic diagram of a partial structure of the auger blade of the automatic spreading and crack adaptive follow-up device for modified asphalt roofing provided by the present invention; Figure 9 The flowchart illustrates the usage method of the automatic spreading and crack adaptive follow-up device for modified asphalt roofing provided by this invention.

[0020] The components include: 1. Vehicle body; 2. Baffle; 3. Shaft 1; 4. Wheel plate; 5. Caster wheel; 6. Air source heat pump; 7. Connecting pipe 1; 8. Motor 1; 9. Connecting pipe 2; 10. Conveying shell; 11. Discharge port 1; 12. Support plate; 13. Feed hopper; 14. Funnel; 15. Motor base; 16. Paving plate; 17. Guide wheel; 18. Discharge pipe 1; 19. Connecting pipe; 20. Discharge pipe 2; 21. Discharge port 2; 22. Connecting rod; 23. Pressure roller; 24. Scraper; 25. Air duct; 26. Air... 27. Nozzle; 28. Fan; 29. ​​Connecting pipe three; 30. Motor two; 31. Cover plate; 32. Rotating shaft two; 33. Screwdriver blade one; 34. Bearing one; 35. Discharge pipe three; 36. Discharge port three; 37. Probe; 38. Fixing plate; 39. Connecting port; 40. Bevel gear one; 41. Bevel gear two; 42. Bearing two; 43. Scraper blade; 44. Screwdriver blade two; 45. Scraper block; 46. Nozzle; 47. Bevel gear three; 48. Bevel gear four; 49. Rotating shaft four; 50. Rotating shaft three. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described 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.

[0022] Example 1: Please see the appendix Figure 1 - Appendix Figure 3 Appendix Figure 5 - Appendix Figure 7This invention provides an automatic paving and crack adaptive follow-up device for modified asphalt roofing, including a vehicle body 1. A motor base 15 is provided on the upper surface of the vehicle body 1. A motor 8 is provided on the upper surface of the motor base 15. A bevel gear 41 is fixedly provided at the output end of the motor 8. A bevel gear 40 is meshed with the tooth end of the bevel gear 41. A connecting shaft 39 is fixedly provided in the middle of the bevel gear 40. A heating mechanism is provided at one end of the connecting shaft 39. A rotating shaft 50 is fixedly provided through the material conveying shell 10 at the other end of the connecting shaft 39. A ventilation chamber is provided in the middle of the rotating shaft 50. A screw conveyor blade 44 is provided on the outer wall of the rotating shaft 50. The screw conveyor blade 44 is located inside the rotating shaft 50. A plurality of nozzles 46 are provided on the outer wall of the rotating shaft 50. A scraper 45 is provided on one side of the nozzle 46. A material leakage port is provided at the bottom end of the scraper 45. A discharge port 11 is provided at one end of the material conveying shell 10. A discharge mechanism is provided at one end of the discharge port 11.

[0023] Specifically, by starting motor 8, the output end of motor 8 outputs rotational torque and directly drives bevel gear 41 to rotate; the tooth end of bevel gear 41 and the tooth end of bevel gear 40 generate a pure physical meshing action, transmitting rotational power orthogonally, thereby driving the connecting shaft 39 fixed in the middle of bevel gear 40 and the rotating shaft 50 passing through the material conveying shell 10 to rotate coaxially and synchronously.

[0024] During the continuous rotation of the rotating shaft 350, the following linked physical actions occur: First, the heat medium generated by the heating mechanism at one end of the connecting shaft 39 is pressed into the ventilation cavity in the middle of the rotating shaft 350 and sprayed outward through several nozzles 46 on the outer wall of the rotating shaft 350, directly contacting the modified roofing asphalt inside the conveying shell 10 for internal heating; Second, the auger blade 2 44 fixed to the outer wall of the rotating shaft 350 generates an axial mechanical pushing force on the heated and molten modified roofing asphalt, forcing the material to shift towards the discharge port 11 inside the conveying shell 10 and finally discharge into the discharge mechanism; Third, with the rotation of the rotating shaft 350, the scraper 45 set on one side of the nozzle 46 comes into physical shearing and scraping contact with the material between it and the inner wall of the conveying shell 10, forcibly peeling off the viscous asphalt attached around the nozzle 46, and the peeled material falls directly through the discharge port at the bottom of the scraper 45 and flows back into the main material flow.

[0025] It achieves synchronous mechanical output and closed-loop integration of three actions within the same rotation cycle: dynamic internal-to-outward direct injection heating of the heat medium, spiral mechanical propulsion of the material, and pure physical scraping and anti-clogging around the nozzle, all within the closed material conveying shell 10, relying solely on a single motor 8 as the power source and utilizing physical gear transmission and rigid connection with the rotating shaft.

[0026] The physical meshing transmission between bevel gear 2 41 and bevel gear 1 40 drives the rotating shaft 3 50, which has an internal ventilation chamber and is fixed to the outer wall with nozzle 46, scraper 45 and auger blade 2 44, to rotate synchronously to push materials and dynamically scrape them. This improves the traditional technical defects of static heating equipment, such as the excessively long heat transfer path leading to the incomplete melting of the core material and the static air jet hole being easily blocked by high-viscosity condensed asphalt. This avoids the specific problem of roof paving operations being forced to stop due to mechanical jamming inside the conveying pipeline or asphalt solidification.

[0027] Please see the appendix Figure 1 Appendix Figure 3 Appendix Figure 5 - Appendix Figure 6 The heating mechanism includes an air source heat pump 6. The bottom end of the air source heat pump 6 is located on the upper surface of the vehicle body 1. A cooling mechanism is located on one side of the upper surface of the vehicle body 1. A connecting pipe 7 is fixedly installed at the output end of the air source heat pump 6. A bearing 42 is installed at one end of the connecting pipe 7. The outer wall of the bearing 42 is located on the inner wall of one end of the connecting shaft 39.

[0028] Specifically, the air source heat pump 6, located on the upper surface of the vehicle body 1, is activated, continuously outputting hot-pressed airflow. This hot-pressed airflow enters the interior of the stationary connecting pipe 7. Since a bearing 42, which provides rotational support, is physically fitted between one end of the connecting pipe 7 and the inner wall of one end of the connecting shaft 39, the bearing 42 releases the circumferential rotational freedom between the connecting shaft 39 and the connecting pipe 7 when the connecting shaft 39 rotates mechanically driven by gears. The hot-pressed airflow sequentially passes through the stationary connecting pipe 7, crossing the static-dynamic boundary without mechanical interference with its surroundings, and smoothly enters the internal cavity of the rotating connecting shaft 39, forming a purely physical heat transfer path from the outside in.

[0029] Under the condition of maintaining the continuous mechanical rotational kinetic energy output of the connecting shaft 39, a physical airflow channel was established to introduce the hot and compressed airflow from the stationary rigid component across the structure into the interior of the rotating main shaft, realizing the dynamic transfer of the heat source medium and direct input to the rotating inner cavity.

[0030] By assembling bearing 242 to construct the mechanical structure of the static and dynamic airflow transmission interface, the technical defects of traditional static pipelines directly connected to rotating components are easily caused by mechanical entanglement and pipe wall twisting and tearing under rotational stress. This avoids the specific problems of forced heating interruption caused by fatigue fracture of the heating physical pipeline during roof paving operations, as well as the physical condensation and mechanical jamming of modified asphalt inside the conveying components caused by this.

[0031] Please see the appendix Figure 2 - Appendix Figure 4The discharge mechanism includes a connecting pipe 2 9, the outer wall of the connecting pipe 2 9 is located at one end of the discharge port 11, the two ends of the connecting pipe 2 9 are symmetrically provided with discharge pipes 2 20, one end of the discharge pipe 2 20 is provided with a discharge port 21, the outer wall of the discharge pipe 2 20 is provided with a connecting pipe 19, the middle part of the connecting pipe 19 is provided with a discharge pipe 18, and one end of the discharge pipe 18 is provided with an adaptive mechanism.

[0032] Specifically, the molten modified roofing asphalt, subjected to mechanical extrusion by the front-end mechanism, is discharged into the interior of the connecting pipe 9 through outlet 11. Under the continuous thrust of the internal conveying pressure, the molten material undergoes a purely physical diversion along the inner cavity of the connecting pipe 9: the first part of the material flows downward along the symmetrically arranged outlet pipe 20 and is directly discharged through outlet 21; the second part of the material, when flowing through outlet pipe 20, is physically intercepted and guided by the connecting pipe 19 spanning the outer wall of outlet pipe 20, and converges towards the middle along the connecting pipe 19, and is finally pressed into the interior of outlet pipe 18 located in the middle of the connecting pipe 19, and then conveyed to the adaptive mechanism located at the bottom of outlet pipe 18.

[0033] Under the condition of having only a single main shaft mechanical extrusion source, without relying on any electronic throttle valve or electromagnetic reversing valve, the synchronous dual-path stable output of molten modified asphalt is achieved solely through the physical spatial connection form and cross-sectional diversion of the pipeline: the two discharge ports 21 on both sides form a wide material flow for large-area primer coating, and the discharge pipe 18 in the middle forms a linear material flow specifically for tracking cracks, thus constructing a composite discharge mechanical closed loop of "wide-area paving on both sides + central fixed-point deep injection".

[0034] By employing a pipeline physical space diversion technology consisting of connecting pipe 29, symmetrically distributed discharge pipe 20, and centrally converging connecting pipe 19, this technology improves upon the technical shortcomings of traditional roof paving equipment, which requires the independent installation of two separate power pumping systems or the addition of complex and easily damaged electronic switching valves to simultaneously achieve surface paving and linear crack injection. This avoids the specific problems of material discharge interruption due to physical jamming or control failure of electromechanical valve components in high-temperature, high-viscosity liquid modified asphalt operation environments, as well as the inability of single-path discharge structures to simultaneously complete overall roof waterproofing and crack depth point reinforcement in a single operation.

[0035] Please see the appendix Figure 2 - Appendix Figure 4 The adaptive mechanism includes a bearing 33, the outer wall of which is located at one end of a discharge pipe 18. A discharge pipe 34 is located in the middle of the bearing 33. A discharge port 35 is located at the bottom of the discharge pipe 34. A rotating shaft 31 is symmetrically arranged on the outer wall of the discharge pipe 34. A guide wheel 17 is rotatably connected to one end of the rotating shaft 31. A probe 36 is fixedly arranged on the other side wall of the discharge pipe 34.

[0036] Specifically, during the vehicle's movement, a probe 36, positioned on the side wall of the discharge pipe 34, is pre-inserted into the roof crack. A guide wheel 17 is supported by a rotating shaft 31 and rolls on the roof substrate. When the roof crack undergoes geometric bending or shifting, the physical sidewall of the crack directly applies lateral mechanical pressure to the probe 36; this lateral mechanical pressure acts as a mechanical torque directly on the rigidly connected discharge pipe 34. Since the discharge pipe 34 is physically assembled with the fixed discharge pipe 18 above it via a bearing 33, the bearing 33 releases the horizontal circumferential rotational freedom of the discharge pipe 34. Under the physical drive of the mechanical torque, the discharge pipe 34 passively deflects using the bearing 33, thereby causing the discharge port 35 at the bottom to undergo synchronous displacement and deflection alignment.

[0037] A passive physical feedback closed loop was constructed, which directly converts the physical deformation of the terrain into the mechanical displacement of the actuator. This enabled the material outlet 35 to be mechanically synchronized and spatially aligned with the irregular roof crack trajectory, relying solely on the physical resistance of the sidewall of the roof crack, without the need for electronic sensors and servo motors.

[0038] By combining the rigid contact force of probe 36 with the single-axis rotational freedom release of bearing 33, the physical guidance technology improves the technical defects of traditional crack tracking equipment, which relies heavily on visual sensors or photoelectric switches for trajectory recognition. In such cases, lens contamination failure or electromechanical servo response lag is prone to occur under the harsh working conditions of high temperature, high viscosity, and high dust in asphalt construction. This avoids specific problems such as deviation of the glue injection trajectory, incomplete filling of cracks, or ineffective paving caused by the failure of electrical components.

[0039] Please see the appendix Figure 1 Appendix Figure 3 The cooling mechanism includes a fan 27. The bottom end of the fan 27 is located on one side of the upper surface of the vehicle body 1. A connecting pipe 28 is fixedly installed at the output end of the fan 27. A duct 25 is installed through the connecting pipe 28 and inside the vehicle body 1. A nozzle 26 is installed on the outer wall of the duct 25. Baffles 2 are installed at both ends of the duct 25.

[0040] Specifically, the fan 27, located on one side of the upper surface of the vehicle body 1, is activated. The impeller of the fan 27 rotates, forcibly outputting a cold, compressed airflow. The cold, compressed airflow enters the rigidly connected connecting pipe 3 28 and flows downwards through the inner cavity of the connecting pipe 3 28, penetrating the vehicle body 1. It is then physically guided to the interior of the laterally arranged air duct 25. Subsequently, the cold, compressed airflow, under the pressure inside the duct, is directionally sprayed through the nozzles 26 distributed on the outer wall of the air duct 25 onto the physically compacted modified asphalt surface of the roof. During the continuous spraying and surface diffusion of the cold airflow, the baffles 2 located at both ends of the air duct 25 form a rigid physical spatial barrier against the sprayed cold, compressed airflow, directly cutting off the lateral escape path of the cold, compressed airflow to the external environment on both sides of the equipment.

[0041] A forced cold air physical transport link was constructed from top to bottom through the vehicle body 1, realizing direct physical contact heat exchange between the cold compressed airflow and the high-temperature modified asphalt roof. At the same time, relying on the longitudinal physical shielding and spatial constraint of the baffle 2, a boundary-limited physical air-cooling channel was directly constructed at the bottom of the vehicle body 1, forcibly gathering the airflow and increasing the local purging pressure in the working area below the nozzle 26.

[0042] By combining the technical means of fan 27, directional pipeline delivery, and physical limiting and wind gathering by baffle 2, the traditional paving equipment has been improved, which relies solely on passive heat dissipation from the natural environment, resulting in extremely slow cooling and solidification of liquid modified asphalt. In addition, the traditional technology of using unobstructed open air blowing has caused cold air to be rapidly diluted and dispersed by the surrounding natural wind. This avoids the specific problems of uncontrolled waterproof layer thickness, physical collapse of edges, and serious delay in the molding waiting period caused by high-temperature modified asphalt being in a flowing state for a long time.

[0043] Please see the appendix Figure 1 - Appendix Figure 3 The bottom of the vehicle body 1 is symmetrically provided with wheel plates 4, and the lower surface of the wheel plates 4 is provided with casters 5. The bottom of the vehicle body 1 is symmetrically provided with baffles 2. A rotating shaft 3 is provided on one side of the middle part of the baffle 2. A pressure roller 23 is provided at one end of the rotating shaft 3. A paving plate 16 is provided at one end of the baffle 2. A scraper 24 is provided on the outer wall of the pressure roller 23. The two ends of the scraper 24 are provided on the inner wall of the scraper 24. A fixing mechanism is provided on the upper surface of the vehicle body 1.

[0044] Specifically, the omnidirectional wheels 5, symmetrically positioned on the lower surface of the wheel plates 4 at the bottom of the vehicle body 1, provide purely mechanical rolling support on the roof substrate. As the vehicle body 1 moves forward along the work trajectory, the fluid modified roof asphalt falling onto the roof substrate first undergoes relative physical displacement with the paving plate 16 fixed to one end of the baffle 2. The bottom edge of the paving plate 16 applies a horizontal mechanical pushing and scraping action to the protruding material. During this process, the symmetrically arranged baffles 2 on both sides physically limit the material, completely blocking its lateral flow. Subsequently, the scraped material, along with the vehicle body 1, enters below the pressure roller 23 located in the middle of the baffle 2. The pressure roller 23, driven by the physical friction between its shaft 3 and the substrate, passively rotates, using its own weight and structural underload to vertically compact the material at the bottom. In the continuous rotation path of the pressure roller 23, the scraper 24 set on one side of the outer wall of the pressure roller 23 applies a continuous rigid mechanical shear force to the modified asphalt adhering to the outer wall of the pressure roller 23, forcibly peeling off the adhering material and causing it to fall back onto the paving surface.

[0045] A closed-loop mechanical operation system integrating lateral physical restraint of materials, front-end horizontal mechanical leveling, mid-section gravity compaction, and mechanical anti-adhesion of the compaction wheel was constructed. It enables the physical shaping of the thickness of the fluidized modified asphalt layer, forced compaction and adhesion of the base surface, and mechanical self-cleaning of the compaction actuators to be completed sequentially under the chassis using only the single linear translation and traction action of the chassis 1.

[0046] By using the rigid leveling of the paving slab 16, the lateral physical space constraint of the baffle 2, and the bottom mechanical structure technology of the pressure roller 23 working in conjunction with the scraper 24 for joint compaction and scraping, the technical defects of traditional paving equipment, such as the lack of lateral physical boundaries leading to the flow and overflow of modified asphalt at the edges, and the easy physical adhesion of traditional non-scraper 24 and pressure roller 23 when in contact with high-viscosity materials, resulting in potholes on the road surface, are improved. This avoids specific problems such as hollowing, uneven thickness, or mechanical tearing of the roof waterproofing layer caused by uncontrolled material thickness, incomplete compaction, or sticking to the roller.

[0047] Please see the appendix Figure 1 - Appendix Figure 3 Appendix Figure 5 The fixing mechanism includes two support plates 12. The bottom end of the support plate 12 is set on the upper surface of the vehicle body 1, and the top end of the support plate 12 is set with a fixing plate 37. The middle part of the fixing plate 37 is set with a feeding mechanism.

[0048] Specifically, the bottom ends of the two support plates 12 form a rigid physical connection with the upper surface of the vehicle body 1, transmitting the load-bearing force of the upper components vertically downward to the chassis frame of the vehicle body 1; the top ends of the two support plates 12 form a vertical physical support and rigid limit for the horizontally arranged fixing plate 37, constructing a three-dimensional installation platform suspended above the vehicle body 1; the middle part of the fixing plate 37 provides a horizontal mechanical fixing node for the feeding mechanism, so that the weight of the feeding mechanism itself and the mechanical impact stress during the material receiving process can be sequentially diverted through the fixing plate 37 and the two support plates 12, and finally stably transmitted to the vehicle body 1.

[0049] A stepped vertical force transmission frame was constructed, extending from the chassis to the top material inlet. This allowed the feeding mechanism to be lifted and suspended above the main conveying component in three-dimensional physical space, providing the necessary gravitational potential energy difference space for subsequent vertical material conveying. At the same time, a defined physical isolation height and rigid load-bearing path were established between the feeding mechanism and the bottom high-heat components, ensuring the mechanical stability of the feeding end during dynamic operation.

[0050] The suspended bridge-type rigid support structure constructed by combining two support plates 12 and fixed plate 37 improves the traditional technical defects of traditional paving equipment, such as reverse physical heat conduction caused by the direct contact of the feeding components with the surface of the bottom heating shell, and the limited space for feeding. This avoids the problem that the modified asphalt raw material for the roof at room temperature will not be physically softened and adhered to agglomerate due to direct heat radiation from the high-heat components at the bottom before falling into the feeding mechanism, thus preventing mechanical blockage of the feeding channel.

[0051] Please see the appendix Figure 1 - Appendix Figure 3 Appendix Figure 5 Appendix Figure 8 The feeding mechanism includes a feeding hopper 13. The outer wall of the feeding hopper 13 is located in the middle of the fixed plate 37. A cover plate 30 is provided at the top of the feeding hopper 13. A funnel 14 is provided on the upper surface of the cover plate 30. A motor 29 is provided on the upper surface of the cover plate 30. A bevel gear 48 is fixedly provided at the output end of the motor 29. A bevel gear 47 is meshed with the tooth end of the bevel gear 48. A rotating shaft 49 is provided through the cover plate 30 at the bottom end of the bevel gear 47. An auger blade 32 is provided on the outer wall of the rotating shaft 49. The auger blade 32 is located inside the feeding hopper 13. Several connecting rods 22 are provided on the outer wall of the rotating shaft 49. A scraper 43 is provided at one end of the connecting rod 22. One side of the scraper 43 is attached to the inner wall of the feeding hopper 13. A connection port 38 is provided at the bottom end of the feeding hopper 13. The bottom end of the connection port 38 is located on the outer wall of the conveying shell 10.

[0052] Specifically, the high-viscosity raw material from the outside falls into the internal space of the feed hopper 13 through the funnel 14 under the action of gravity. The motor 29 arranged on the cover plate 30 is started, and its output end outputs rotational torque and directly drives the bevel gear 48 to rotate. The tooth end of the bevel gear 48 physically meshes with the bevel gear 47, and the rotational power is spatially redirected and transmitted, thereby forcibly driving the shaft 49 that passes through the cover plate 30 to mechanically rotate along the central axis inside the feed hopper 13.

[0053] During the continuous output of rotational kinetic energy by the rotating shaft 49, two synchronous physical actions occur: First, the auger blade 32, fixed to the outer wall of the rotating shaft 49, rotates accordingly, applying physical shearing force and axial downward mechanical pushing force to the internal material, breaking the static friction between the materials and forcing them to move downward; Second, the scraper 43, rigidly supported by the rotating shaft 49 via the connecting rod 22, slides relative to the inner wall surface of the feed hopper 13. Since one side of the scraper 43 is tightly attached to the inner wall, its sliding process applies a direct mechanical scraping force to the asphalt material adhering to the wall surface, forcibly peeling off the adhering layer and allowing it to re-enter the central material flow. Finally, the material subjected to the dual effects of mechanical pushing and gravity is stably discharged into the lower conveying shell 10 through the bottom connection port 38.

[0054] A closed-loop, purely physical feeding transmission system was constructed, integrating forced downward material flow with mechanical self-cleaning of the container's inner wall. This system achieves axial power conversion via gear meshing under a single power source input, simultaneously completing the physical crushing and spiral compression of high-viscosity or easily agglomerated materials, as well as the forced mechanical scraping of dead corners on the hopper's inner wall within the same physical rotation cycle, ensuring that the three-dimensional space of the feeding channel remains physically unobstructed at all times.

[0055] By combining the axial pushing of the auger blade 32 with the mechanical peeling of the inner wall of the scraper 43, the traditional paving equipment's feed hopper 13, which relies solely on the free fall of the material under its own weight, is prone to physical adhesion and accumulation on the conical hopper wall when dealing with modified asphalt raw materials with high viscosity or easy agglomeration characteristics at room temperature. This eventually leads to blockage in the lower part of the hopper, resulting in mechanical blockage of the discharge port. This avoids the specific problems of subsequent dry friction idling of the heating main shaft and forced cessation of the overall waterproof paving operation caused by poor material discharge and interruption of feed flow.

[0056] Example 2: Please see the appendix Figure 9 The method for using the automatic spreading and crack adaptive tracking device for modified asphalt roofing includes the following steps: S1. The modified asphalt raw material for roofing is put into the funnel 14. The motor 29 drives the bevel gear 48 to rotate the bevel gear 3 47, which in turn drives the shaft 49 and the auger blade 32 to rotate inside the feed hopper 13, to initially mix the modified asphalt raw material for roofing, and then transport it to the inside of the conveying shell 10 through the connection port 38 at the bottom of the feed hopper 13. S2. Start the air source heat pump 6. Hot air is sent into the ventilation chamber in the middle of the rotating shaft 50 through the connecting pipe 7 and sprayed out through the nozzle 46 on the outer wall of the rotating shaft 50 to heat and melt the roof modified asphalt raw material inside the conveying shell 10. At the same time, the motor 8 drives the bevel gear 41 to rotate the bevel gear 40, which in turn drives the connecting shaft 39, the rotating shaft 50 and the auger blade 44 to rotate synchronously, continuously pushing the molten roof modified asphalt raw material towards the discharge port 11. S3. Molten roof modified asphalt raw material is discharged from outlet 11 into connecting pipe 29 and physically diverted: the first part of the raw material is discharged from outlet 21 through outlet pipe 20 on both sides and spread on a large area under the vehicle body 1; the second part of the raw material enters outlet pipe 18 through connecting pipe 19 in the middle. At this time, the probe 36 at the bottom of outlet pipe 34 is embedded in the roof crack. As the vehicle body 1 moves forward, the tortuous sidewall of the roof crack applies lateral physical extrusion force to the probe 36, forcing outlet pipe 34 to undergo purely mechanical adaptive deflection at the bottom of outlet pipe 18 with bearing 13, so that outlet 35 is always accurately aligned with the roof crack for follow-up injection. S4. As the vehicle body 1 continues to move forward, the paving plate 16 at the bottom initially scrapes the paved modified asphalt material for the roof. Then, the pressure roller 23 driven by the rotating shaft 3 compacts the modified asphalt material for the roof. At the same time, the fan 27 sends cold air into the air duct 25 through the connecting pipe 28, and blows it onto the surface of the compacted modified asphalt material for the roof through the air nozzle 26 to cool it down, accelerate the curing and forming of the waterproof coating, and complete the closed loop of the roof paving operation.

[0057] Specifically, in the feeding and mixing stage: the rotational kinetic energy output by motor 29 is transmitted and reversed through the physical meshing of bevel gear 48 and bevel gear 37, forcibly driving the rotating shaft 49 and auger blade 32 to rotate, applying mechanical shearing and pushing to the roof modified asphalt raw material that is put into the funnel 14 and falls into the feed hopper 13, causing the roof modified asphalt raw material to continuously fall into the conveying shell 10 through the connection port 38.

[0058] Heating and pressing stage: The hot and compressed airflow output by the air source heat pump 6 is introduced into the ventilation chamber in the middle of the rotating shaft 50 through the connecting pipe 7, and sprayed outward by the nozzle 46 to directly heat the roof modified asphalt raw material; simultaneously, the motor 8 drives the connecting shaft 39, the rotating shaft 50 and the screw conveyor blade 44 to rotate coaxially through the physical meshing of the bevel gear 41 and the bevel gear 40, and through the physical pushing of the spiral blade, the molten roof modified asphalt raw material is forcibly conveyed towards the discharge port 11.

[0059] The diversion and mechanical follow-up stage: After the molten roof modified asphalt raw material is discharged into the connecting pipe 29, the pipeline physical space diversion occurs: the first part of the raw material is discharged through the discharge pipes 20 on both sides and the discharge port 21 to the bottom of the vehicle body 1 for large-area physical paving; the second part of the raw material enters the connecting pipe 19 and the discharge pipe 18 in the middle. As the vehicle body 1 moves forward, the probe 36, which is pre-embedded in the roof crack, is subjected to the lateral physical extrusion force exerted by the tortuous side wall of the roof crack, generating a mechanical lever torque; the deflection torque forces the discharge pipe 34 to undergo passive mechanical deflection based on the single-axis rotational degree of freedom released by the bearing 33, so that the movement trajectory of the discharge port 35 always rigidly conforms to the direction of the roof crack for precise glue injection.

[0060] Compaction and curing stage: The bottom fixed paving plate 16 moves with the vehicle body 1 and performs horizontal physical scraping on the spread roof modified asphalt material. The subsequent pressure roller 23 is supported by the rotating shaft 3 and uses its own weight to perform vertical physical rolling. At the same time, the fan 27 forces cold air to be output and introduced into the air duct 25 through the connecting pipe 3 28. The air nozzle 26 performs heat exchange blowing on the surface of the compacted roof modified asphalt material to accelerate physical cooling and shaping.

[0061] Relying on the cascaded transmission of pure mechanical mechanisms and physical space constraints, a single equipment platform was used to realize mechanical crushing and feeding of raw materials at room temperature, direct injection heating of the spindle cavity, spiral forced flow of molten materials, physical bidirectional diversion of pipeline cross-section, passive mechanical contour tracking and glue injection that does not rely on electronic environmental perception, rigid scraping and compaction of the chassis, and forced air cooling in confined space, thus constructing a closed-loop operation from initial kinetic energy input to final physical curing and forming of the coating.

[0062] By using the probe 36 to receive physical extrusion pressure and directly drive the discharge pipe 34 to mechanically deflect and align, combined with the physical propulsion of the front auger blade 44 and the purely mechanical scraping mechanism at the rear of the chassis, this technology improves upon the traditional roof waterproofing construction equipment's reliance on electronic vision sensors, which is prone to lens contamination or circuit burnout under harsh conditions of high temperature, high viscosity, and high dust. This avoids specific problems such as deviation of the glue injection trajectory and incomplete filling of cracks caused by electrical component failure, as well as uneven thickness of the large-area waterproof layer due to process separation.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic paving and crack adaptive tracking device for modified asphalt roofing, comprising a vehicle body (1), characterized in that: A motor mount (15) is provided on the upper surface of the vehicle body (1), and a motor (8) is provided on the upper surface of the motor mount (15). A bevel gear (41) is fixedly provided at the output end of the motor (8). The bevel gear (41) is meshed with a bevel gear (40) at the tooth end. A connecting shaft (39) is fixedly provided in the middle of the bevel gear (40). A heating mechanism is provided at one end of the connecting shaft (39), and a rotating shaft (50) is fixedly provided through the material conveying shell (10) at the other end of the connecting shaft (39). The rotating shaft three (50) is provided with a ventilation chamber in the middle. The rotating shaft three (50) is provided with an auger blade two (44) on its outer wall. The auger blade two (44) is located inside the rotating shaft three (50). The rotating shaft three (50) is provided with a number of nozzles (46) on its outer wall. A scraper block (45) is provided on one side of the nozzle (46). A material leakage port is provided at the bottom end of the scraper block (45). A discharge port one (11) is provided at one end of the material conveying shell (10). A discharge mechanism is provided at one end of the discharge port one (11).

2. The automatic spreading and crack adaptive follow-up device for modified asphalt roofing according to claim 1, characterized in that: The heating mechanism includes an air source heat pump (6), the bottom end of which is located on the upper surface of the vehicle body (1). A cooling mechanism is provided on one side of the upper surface of the vehicle body (1). A connecting pipe (7) is fixedly provided at the output end of the air source heat pump (6). A bearing (42) is provided at one end of the connecting pipe (7). The outer wall of the bearing (42) is located on the inner wall of one end of the connecting shaft (39).

3. The automatic spreading and crack adaptive follow-up device for modified asphalt roofing according to claim 1, characterized in that: The discharge mechanism includes a second connecting pipe (9), the outer wall of which is disposed at one end of a first discharge port (11). The two ends of the second connecting pipe (9) are symmetrically provided with second discharge pipes (20), one end of the second discharge pipe (20) is provided with a second discharge port (21), the outer wall of the second discharge pipe (20) is provided with a connecting pipe (19), the middle part of the connecting pipe (19) is provided with a first discharge pipe (18), and one end of the first discharge pipe (18) is provided with an adaptive mechanism.

4. The automatic spreading and crack adaptive follow-up device for modified asphalt roofing according to claim 3, characterized in that: The adaptive mechanism includes a bearing (33), the outer wall of which is disposed at one end of a discharge pipe (18), a discharge pipe (34) is disposed in the middle of the bearing (33), a discharge port (35) is disposed at the bottom end of the discharge pipe (34), a rotating shaft (31) is symmetrically disposed on the outer wall of the discharge pipe (34), a guide wheel (17) is rotatably connected to one end of the rotating shaft (31), and a probe (36) is fixedly disposed on the other side wall of the discharge pipe (34).

5. The automatic spreading and crack adaptive follow-up device for modified asphalt roofing according to claim 2, characterized in that: The cooling mechanism includes a fan (27), the bottom end of which is located on one side of the upper surface of the vehicle body (1). A connecting pipe (28) is fixedly installed at the output end of the fan (27). A duct (25) is installed through the interior of the vehicle body (1) via the connecting pipe (28). A nozzle (26) is installed on the outer wall of the duct (25). Baffles (2) are installed at both ends of the duct (25).

6. The automatic spreading and crack adaptive follow-up device for modified asphalt roofing according to claim 1, characterized in that: The bottom end of the vehicle body (1) is symmetrically provided with wheel plates (4), the lower surface of the wheel plates (4) is provided with casters (5), the bottom end of the vehicle body (1) is symmetrically provided with baffles (2), the middle side of the baffles (2) is provided with a rotating shaft (3), one end of the rotating shaft (3) is provided with a pressure roller (23), one end of the baffles (2) is provided with a paving plate (16), the outer wall of the pressure roller (23) is provided with a scraper (24), the two ends of the scraper (24) are provided with the inner wall of the scraper (24), and the upper surface of the vehicle body (1) is provided with a fixing mechanism.

7. The automatic spreading and crack adaptive follow-up device for modified asphalt roofing according to claim 6, characterized in that: The fixing mechanism includes two support plates (12), the bottom of the support plates (12) is set on the upper surface of the vehicle body (1), the top of the support plates (12) is provided with a fixing plate (37), and the middle of the fixing plate (37) is provided with a feeding mechanism.

8. The automatic spreading and crack adaptive follow-up device for modified asphalt roofing according to claim 7, characterized in that: The feeding mechanism includes a feeding hopper (13), the outer wall of which is located in the middle of a fixed plate (37). A cover plate (30) is provided at the top of the feeding hopper (13). A funnel (14) is provided on the upper surface of the cover plate (30). A motor (29) is provided on the upper surface of the cover plate (30). A bevel gear (48) is fixedly provided at the output end of the motor (29). A bevel gear (47) is meshed with the tooth end of the bevel gear (48). A rotating shaft (49) is provided through the cover plate (30) at the bottom end of the bevel gear (47). An auger blade (32) is provided on the outer wall of the rotating shaft (49). The auger blade (32) is located inside the feeding hopper (13).

9. The automatic spreading and crack adaptive follow-up device for modified asphalt roofing according to claim 8, characterized in that: The outer wall of the rotating shaft (49) is provided with several connecting rods (22). One end of the connecting rod (22) is provided with a scraper (43). One side of the scraper (43) is attached to the inner wall of the feed hopper (13). The bottom end of the feed hopper (13) is provided with a connection port (38). The bottom end of the connection port (38) is located on the outer wall of the conveying shell (10).

10. The method of using an automatic spreading and crack-adaptive follow-up device for modified asphalt on roofs, characterized in that, The automatic spreading and crack adaptive tracking device for modified asphalt roofing as described in any one of claims 1-9 includes the following steps: S1. The modified asphalt material for roofing is put into the funnel (14). The motor (29) drives the bevel gear (48) to rotate the bevel gear (47), which in turn drives the shaft (49) and the auger blade (32) to rotate inside the feed hopper (13) to initially mix the modified asphalt material for roofing and then transport it to the inside of the conveying shell (10) through the connection port (38) at the bottom of the feed hopper (13). S2. Start the air source heat pump (6). Hot air is sent into the ventilation chamber in the middle of the rotating shaft three (50) through the connecting pipe one (7) and sprayed out through the nozzle (46) on the outer wall of the rotating shaft three (50) to heat and melt the roof modified asphalt raw material inside the conveying shell (10). At the same time, the motor one (8) drives the bevel gear two (41) to drive the bevel gear one (40) to rotate, which in turn drives the connecting shaft (39), the rotating shaft three (50) and the auger blade two (44) to rotate synchronously, continuously pushing the molten roof modified asphalt raw material towards the discharge port one (11). S3. Molten roof modified asphalt raw material is discharged from outlet one (11) into connecting pipe two (9) and physically diverted: the first part of the raw material is discharged from outlet two (21) through outlet two (20) on both sides and spread in a large area under the vehicle body (1); the second part of the raw material enters outlet one (18) through connecting pipe (19) in the middle. At this time, the probe (36) at the bottom of outlet three (34) is embedded in the roof crack. During the forward movement of the vehicle body (1), the tortuous sidewall of the roof crack applies lateral physical extrusion force to the probe (36), forcing outlet three (34) to undergo purely mechanical adaptive deflection at the bottom of outlet one (18) with bearing one (33), so that outlet three (35) is always accurately aligned with the roof crack for follow-up injection. S4. As the vehicle body (1) continues to move, the paving plate (16) at the bottom initially scrapes the modified asphalt material of the roof after it has been spread. Then, the roller (23) driven by the rotating shaft (3) compacts the modified asphalt material of the roof. At the same time, the fan (27) sends cold air into the air duct (25) through the connecting pipe (28), and blows it onto the surface of the modified asphalt material of the roof after it has been compacted by the air nozzle (26) to cool it down, accelerate the curing and forming of the waterproof coating, and complete the closed loop of the roof spreading operation.

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