Unmanned paver with gas purification function for asphalt concrete road

Abstract

The invention relates to the field of asphalt paving equipment, and discloses an asphalt concrete road unmanned paver with a gas purification function, the asphalt concrete road unmanned paver comprises a paving device, an asphalt bin and a material conveying pipe, the paving device is communicated with the asphalt bin through the material conveying pipe, and asphalt to be paved is loaded on the asphalt bin; the surfaces, close to the left side and the right side of the flamethrower, of the lower end of a movable plate body are inclined surfaces, the two inclined surfaces are each provided with a dust suction opening used for adsorbing smoke dust, the two dust suction openings communicate with each other through a communicating channel, and the tail end of the communicating channel communicates with a negative pressure channel formed in the movable plate body; the tail end of the negative pressure channel is externally connected with an air pump through a negative pressure communicating pipe, and negative pressure is produced at the dust suction port to adsorb smoke dust; the dust collection port is directly formed near the flamethrower, and the negative pressure channel and the negative pressure generated by the air pump are utilized, so that smoke dust generated in the asphalt heating process can be efficiently adsorbed and collected.

Description

Technical Field

[0001] The present invention relates to the field of asphalt paving equipment, specifically an unmanned paver for asphalt concrete roads with a gas purification function. Background Art

[0002] During the paving process of asphalt concrete roads, although traditional unmanned pavers have significant advantages in improving construction efficiency and reducing labor costs, there are still obvious deficiencies in environmental protection and the protection of construction workers' health. When the existing asphalt paving equipment paves asphalt, it is necessary to spray an open flame through a heating mechanism to reheat the asphalt laid on the road surface. Most of the existing asphalt paving unmanned aerial vehicles do not have an effective gas purification device or set the gas purification device far away from the heating mechanism, resulting in the inability to fully adsorb and process the soot generated during the construction process, which poses a potential threat to the environment and the health of construction workers. Summary of the Invention

[0003] The present invention provides an unmanned paver for asphalt concrete roads with a gas purification function, which overcomes the deficiencies described in the background art.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows: An unmanned paver for asphalt concrete roads with a gas purification function includes a paving device, an asphalt bin, and a material conveying pipe. The paving device is connected to the asphalt bin through the material conveying pipe. The asphalt bin is loaded with asphalt to be paved, and the asphalt is conveyed to the paving device through the material conveying pipe. The paving device includes a movable plate body 1, a movable plate body 2, and a connecting plate. The movable plate body 2 is swingably installed on the movable plate body 1 through the connecting plate. An asphalt channel communicating with the material conveying pipe is arranged on the surface of the movable plate body 1. A corresponding communication discharge port is arranged near the asphalt channel on the surface of the inclined slope of the movable plate body 2. The inclined slope is arranged in an inclined shape. The material conveying pipe is connected to the communication discharge port through the asphalt channel to convey asphalt to the communication discharge port through the material conveying pipe. A sprayer installation cavity is arranged below the movable plate body 2. A flame sprayer for spraying an open flame to heat the asphalt is installed in the sprayer installation cavity. Lugs are respectively arranged on the left and right sides of the flame sprayer. Chute grooves corresponding to all the lugs are respectively arranged on the surface of the movable plate body 2. All the lugs respectively protrude from the surface of the movable plate body through the corresponding chute grooves. Electric push rods connected to the lugs are respectively arranged on both sides of the movable plate body 2 to drive the flame sprayer to lift and lower through the electric push rods. The surfaces of the lower ends of the second movable plate body near the left and right sides of the flame injector are both inclined surfaces. Dust suction ports for adsorbing soot are provided on both inclined surfaces. The two dust suction ports are connected by a communication channel, and the end of the communication channel is connected to a negative pressure channel arranged in the first movable plate body. The end of the negative pressure channel is externally connected to an air pump through a negative pressure connecting pipe to create negative pressure at the dust suction ports to adsorb soot. Magnetic blocks two are respectively arranged on both sides of the communication channel. Corresponding magnetic blocks three for adsorption are respectively arranged on the first movable plate body at positions corresponding to the two magnetic blocks two. When the second movable plate body abuts against the first movable plate body, the magnetic blocks two and the magnetic blocks three are adsorbed to each other, and neither the magnetic blocks two nor the magnetic blocks three protrude from the surfaces of the second movable plate body and the first movable plate body.

[0005] In a preferred technical solution, a filter separation component connected to the two dust suction ports is arranged in the communication channel. A channel one and a channel two are respectively arranged in the filter separation component. The two ends of the channel one are respectively connected to the two dust suction ports, one end of the channel two is connected to the middle of the channel one, and the other end is connected to the communication channel. Two groups of convex block groups are symmetrically arranged in the middle of the channel one. Each group of convex block groups includes two protruding blocks arranged up and down. An arch-shaped cavity is formed on the inner side of the channel one through the two groups of convex block groups on the left and right. The arch-shaped cavity forms a collection dish through the two protruding blocks on the lower side. And a filter cotton sheet is arranged at the connection between the channel two and the channel one. The collection dish is located directly below the filter cotton sheet. One-way valves are arranged at both left and right ends of the channel one. The airflow direction from the dust suction port into the channel one is the low-resistance direction of the airflow of the two one-way valves.

[0006] In a preferred technical solution, the flame injector is externally connected to a gas supply end through a flexible connection pipe. The flexible connection pipe includes a rubber connection head and a gas supply pipe. The flame injector is connected to the gas supply pipe through the rubber connection head. The gas supply pipe is wound around a torsion spring tensioning disc to contract the gas supply pipe through the torsion spring tensioning disc, so that the gas supply pipe continuously maintains a tight state during the swing of the second movable plate body. An inwardly recessed step edge is provided at the upper end of the rubber connection head. A protruding threaded convex pipe is provided on the surface of the step edge. During connection, the end of the gas supply pipe abuts against the surface of the step edge at the upper end of the rubber connection head and forms a threaded connection with the threaded convex pipe. The gas supply pipe and the rubber connection head form an interference fit connection.

[0007] In a preferred technical solution, a driving cylinder is swingably installed at the upper end of the second movable plate body. The output shaft of the driving cylinder is connected to the first movable plate body to drive the telescopic movement of the output shaft of the driving cylinder to control the swing of the second movable plate body.

[0008] A preferred technical solution is that a centrifugal motor is further arranged on the outer side of the movable plate body II, and the centrifugal motor is arranged near one end of the slope away from the connecting discharge port.

[0009] A preferred technical solution is that a gradually deepening groove is arranged on the surface of the asphalt storage bin, and a discharge port communicated with the material conveying pipe is arranged at the bottom of the gradually deepening groove to convey asphalt into the material conveying pipe through the discharge port.

[0010] Compared with the prior art, this technical solution has the following advantages: In the present invention, the surfaces of the lower end of the movable plate body near the left and right sides of the flame injector are both inclined surfaces, and dust suction ports for adsorbing soot are arranged on both inclined surfaces. The two dust suction ports are communicated through a connecting channel, and the end of the connecting channel is communicated with a negative pressure channel arranged in the movable plate body. The end of the negative pressure channel is externally connected to an air pump through a negative pressure connecting pipe to create negative pressure at the dust suction port to adsorb soot; by directly arranging the dust suction port near the flame injector and using the negative pressure generated by the negative pressure channel and the air pump, the present invention can efficiently adsorb and collect the soot generated during the heating of asphalt, significantly reducing the potential threat of soot to the environment and the health of construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the drawings and embodiments.

[0012] Figure 1 It is the overall view of the present invention.

[0013] Figure 2 It is the schematic diagram of the paving device.

[0014] Figure 3 It is the schematic diagram of the movable plate body.

[0015] Figure 4 It is the schematic diagram of the flame injector.

[0016] Figure 5 It is the schematic diagram of the rubber connector.

[0017] Figure 6 It is the schematic diagram of the asphalt storage bin.

[0018] Figure 7 It is the schematic diagram of the movable plate body, the connecting plate and the driving cylinder.

[0019] Figure 8 It is the schematic diagram of the movable plate body.

[0020] Figure 9 It is the bottom view schematic diagram of the movable plate body.

[0021] Figure 10 It is the sectional view schematic diagram of the movable plate body.

[0022] Figure 11 is Figure 10 a side view schematic diagram of

[0023] Figure 12 a schematic diagram of the filtering and separating component.

[0024] In the figure: paving device 1, first movable plate body 11, second movable plate body 12, flame sprayer 13, electric push rod 14, connecting plate 15, driving cylinder 16; asphalt channel 111, negative pressure channel 112, negative pressure connecting pipe 1121, third magnet 113; ramp 121, centrifugal motor 122, dust suction port 123, connecting channel 1231, injector installation cavity 124, sliding groove 125, second magnet 126, connecting discharge port 127; filtering and separating component 100, first channel 101, second channel 102, raised block 103, one-way valve 104, filter cotton sheet 105; rubber connector 131, threaded convex pipe 1311, gas supply pipe 132, button spring tensioning disc 1321; asphalt storage bin 2, gradually deepening groove 21, discharge port 22; material transfer pipe 3. Specific implementation manner

[0025] As Figures 1 to 7 shown, in the present invention, an unmanned paver for asphalt concrete road with gas purification function is proposed, including a paving device ①, an asphalt storage bin ② and a material transfer pipe ③. The paving device ① is connected to the asphalt storage bin ② through the material transfer pipe ③. The asphalt storage bin ② is loaded with asphalt to be paved, so as to transfer the asphalt to the paving device ① through the material transfer pipe ③; The paving device ① includes a first movable plate body 11, a second movable plate body 12 and a connecting plate 15. The second movable plate body 12 is swingably installed on the first movable plate body 11 through the connecting plate 15. An asphalt channel 111 communicating with the material transfer pipe ③ is arranged on the surface of the first movable plate body 11. A connecting discharge port 127 corresponding to the asphalt channel 111 is arranged near the ramp 121 arranged on the surface of the second movable plate body 12. The ramp 121 is arranged in an inclined shape. The material transfer pipe ③ is connected to the connecting discharge port 127 through the asphalt channel 111, so as to transfer asphalt to the connecting discharge port 127 through the material transfer pipe ③; A sprayer installation cavity 124 is provided on the lower side of the second movable plate body 12. A flame sprayer 13 for spraying open fire to heat asphalt is installed in the sprayer installation cavity 124. Lugs are respectively provided on the left and right sides of the flame sprayer 13. Chutes 125 are respectively arranged on the surface of the second movable plate body 12 corresponding to all the lugs. All the lugs respectively protrude from the surface of the second movable plate body 12 through the corresponding chutes 125. Electric push rods 14 connected to the lugs are respectively arranged on both sides of the second movable plate body 12 to drive the flame sprayer 13 to lift and lower through the electric push rods 14. Driving the flame sprayer 13 to lift and lower through the two electric push rods 14 has produced remarkable effects during asphalt roasting and can effectively avoid damage to the flame sprayer 13 caused by road surface bumps during the moving process. Specifically, the precise control of the electric push rod 14 enables the height of the flame sprayer 13 to be flexibly adjusted to adapt to asphalt layers of different thicknesses and materials. During the roasting process, the flame sprayer 13 can maintain a constant distance from the asphalt surface, ensuring uniform heating of the asphalt and improving the paving quality. More importantly, when the unmanned paver moves on an uneven road surface, it may encounter road surface bumps or other obstacles. By driving the flame sprayer 13 to lift and lower through the electric push rod 14, its height can be quickly adjusted to avoid direct collision with obstacles. This flexible lifting mechanism not only protects the flame sprayer 13 from damage but also ensures the continuity and stability of the paving operation.

[0026] The surfaces of the lower end of the second movable plate body 12 near the left and right sides of the flame sprayer 13 are both inclined surfaces. Dust suction ports 123 for adsorbing soot are arranged on both inclined surfaces. The two dust suction ports 123 are connected through a communication channel 1231. The end of the communication channel 1231 is connected to a negative pressure channel 112 arranged in the first movable plate body 11. The end of the negative pressure channel 112 is externally connected to an air pump through a negative pressure connecting pipe 1121 to create negative pressure at the dust suction ports 123 to adsorb soot. By directly arranging dust suction ports near the flame sprayer and using the negative pressure generated by the negative pressure channel and the air pump, the present invention can efficiently adsorb and collect the soot generated during the asphalt heating process, significantly reducing the potential threat of soot to the environment and the health of construction workers. The dust suction ports 123 are arranged on both sides of the flame injector 13. This design has significant advantages for efficiently adsorbing the flue gas generated during open-flame baking of asphalt. First, during the process of open-flame baking of asphalt, the flue gas often spreads rapidly along with the combustion of the flame and the heating of the asphalt. Placing the dust suction ports 123 on both sides of the flame injector 13 can directly capture this newly generated and highly concentrated flue gas, effectively reducing the escape and diffusion range of the flue gas. Second, when the flame injector 13 is working, the air flow around it will form a certain air flow field. By arranging the dust suction ports 123 here, this air flow field can be fully utilized to guide the flue gas into the dust suction ports more smoothly, improving the adsorption efficiency of the dust. Finally, such a layout also helps to maintain the shortest distance between the dust suction ports 123 and the flue gas source, thereby minimizing the residence time of the dust in the air and reducing the potential harm to the environment and construction workers. Therefore, the design of arranging the dust suction ports 123 on both sides of the flame injector 13 is the key to achieving efficient dust adsorption.

[0027] Magnetic blocks two 126 are respectively arranged on both sides of the communication channel 1231. Corresponding to the two magnetic blocks two 126, magnetic blocks three 113 that are adsorbed to them are respectively arranged on the movable plate body one 11. When the movable plate body two 12 abuts against the movable plate body one 11, the magnetic blocks two 126 and the magnetic blocks three 113 are adsorbed to each other, and neither the magnetic blocks two 126 nor the magnetic blocks three 113 protrude from the surfaces of the movable plate body two 12 and the movable plate body one 11.

[0028] In a preferred technical solution, a filter separation component 100 communicating with the two dust suction ports 123 is arranged in the communication channel 1231. A channel one 101 and a channel two 102 are respectively arranged in the filter separation component 100. The two ends of the channel one 101 are respectively communicated with the two dust suction ports 123. One end of the channel two 102 is communicated with the middle of the channel one 101, and the other end is communicated with the communication channel 1231. Two groups of convex block groups are symmetrically arranged in the middle of the channel one 101. Each group of convex block groups includes two raised blocks 103 arranged up and down. An arch-shaped cavity is formed in the inner side of the channel one 101 through the two groups of convex block groups on the left and right. The arch-shaped cavity forms a collection dish through the two raised blocks 103 located on the lower side. And a filter cotton sheet 105 is arranged at the connection between the channel two 102 and the channel one 101. The collection dish is located directly below the filter cotton sheet 105. One-way valves 104 are arranged at both the left and right ends of the channel one 101. The air flow direction from the dust suction port 123 into the channel one 101 is the low-resistance air flow direction of the two one-way valves 104; Under the action of negative pressure, the flow direction of the air flow in the communication channel 1231 and the internal filtration and separation component 100 is clear and efficient. First, when the external air pump is started and a negative pressure is created at the dust suction port 123, the air flow is attracted and enters from the two dust suction ports 123. These air flows then enter the first channel 101. Since one-way valves 104 are provided at both ends of the first channel 101, and the air flow from the dust suction port 123 into the first channel 101 is the low-resistance direction of the air flow of the one-way valve 104, the air flow can smoothly pass through the one-way valve 104 and enter the first channel 101; Inside the first channel 101, the air flow first encounters a bow-shaped cavity formed by two groups of bump groups. This specially designed cavity not only increases the path length of the air flow but also forms a collection dish through the two protruding blocks 103 located on the lower side. When the air flow passes through the bow-shaped cavity, due to inertia and collision effects, larger solid particles such as particulate matter in soot will be separated and fall into the collection dish; Subsequently, the air flow continues to flow to the middle of the first channel 101 and is connected to the second channel 102. At the connection, a filter cotton sheet 105 is provided. This filter cotton sheet 105 plays a further filtering role and can capture the remaining fine particles in the air flow, ensuring that only clean air flow can pass through and enter the subsequent part of the communication channel 1231. Finally, the filtered and separated air flow will pass through the communication channel 1231 and be discharged into the external environment, while the solid particles will be accumulated in the collection dish in the middle of the first channel 101, facilitating subsequent cleaning and treatment.

[0029] In a preferred technical solution, the flame sprayer 13 communicates with the gas supply end outward through an elastic connecting pipe. The elastic connecting pipe includes a rubber connecting head 131 and a gas supply pipe 132. The flame sprayer 13 is connected to the gas supply pipe 132 through the rubber connecting head 131. The gas supply pipe 132 is wound around a button spring tensioning disc 1321 to contract the gas supply pipe 132 through the button spring tensioning disc 1321, so that the gas supply pipe 132 can continuously maintain a taut state during the swing of the second movable plate body 12; during the process of the second movable plate body 12 performing a swinging operation, if there is no appropriate mechanism to keep the gas supply pipe 132 taut and positioned, then when the second movable plate body 12 swings to a certain position and is about to close, the gas supply pipe 132 may be clamped due to improper position. This will not only damage the integrity of the gas supply pipe, possibly leading to safety hazards such as gas leakage, but also affect the normal operation of the flame sprayer 13, and even may cause the failure of the entire unmanned paver system. Therefore, the button spring tensioning disc 1321 ensures that the gas supply pipe 132 can maintain a taut state at any swinging position through the continuous elastic force provided by its built-in button spring, thus effectively avoiding the risk of being clamped.

[0030] The upper end of the rubber connector 131 is provided with a stepped edge that is recessed inward, and the surface of the stepped edge is provided with a raised threaded convex tube 1311. During connection, the end of the gas supply pipe 132 abuts against the surface of the stepped edge at the upper end of the rubber connector 131 and forms a threaded connection with the threaded convex tube 1311; The gas supply pipe 132 and the rubber connector 131 form an interference fit connection.

[0031] Moreover, a driving cylinder 16 is swingably installed at the upper end of the movable plate body two 12, and the output shaft of the driving cylinder 16 is connected to the movable plate body one 11 to drive the output shaft of the driving cylinder 16 to expand and contract to control the swing of the movable plate body two 12.

[0032] Moreover, a centrifugal motor 122 is further provided on the outer side of the movable plate body two 12, and the centrifugal motor 122 is arranged near one end of the slope 121 away from the communication discharge port 127.

[0033] Moreover, a gradually deepening groove 21 is provided on the surface of the asphalt storage tank 2, and a discharge port 22 communicating with the material transfer pipe 3 is provided at the bottom of the gradually deepening groove 21 to convey asphalt into the material transfer pipe 3 through the discharge port 22.

[0034] The above is only a preferred embodiment of the present invention, and thus the scope of implementation of the present invention cannot be limited thereby. That is, equivalent changes and modifications made according to the scope of the present invention patent and the content of the specification should still fall within the scope covered by the present invention.

Claims

1. An unmanned paver for asphalt concrete roads with gas purification function, characterized in that, It includes a paving device (1), an asphalt silo (2) and a material conveying pipe (3). The paving device (1) is connected to the asphalt silo (2) through the material conveying pipe (3). The asphalt to be paved is loaded on the asphalt silo (2) so as to convey the asphalt to the paving device (1) through the material conveying pipe (3). The paving device (1) includes a first movable plate body (11), a second movable plate body (12) and a connecting plate (15). The second movable plate body (12) is swingably mounted on the first movable plate body (11) through the connecting plate (15). An asphalt passage (111) communicating with the material conveying pipe (3) is arranged on the surface of the first movable plate body (11). A corresponding communicating discharge port (127) is arranged at a position where a slope (121) arranged on the surface of the second movable plate body (12) is close to the asphalt passage (111). The slope (121) is arranged in an inclined shape. The material conveying pipe (3) is communicated with the communicating discharge port (127) through the asphalt passage (111) so as to convey asphalt to the communicating discharge port (127) through the material conveying pipe (3). A sprayer installation cavity (124) is arranged below the second movable plate body (12). A flame sprayer (13) for spraying open fire to heat asphalt is installed in the sprayer installation cavity (124). Lugs are respectively arranged on the left and right sides of the flame sprayer (13). Chutes (125) are respectively arranged at corresponding positions on the surface of the second movable plate body (12) corresponding to all the lugs. All the lugs respectively protrude from the surface of the second movable plate body (12) through the corresponding chutes (125). Electric push rods (14) connected to the lugs are respectively arranged on both sides of the second movable plate body (12) so as to drive the flame sprayer (13) to lift through the electric push rods (14). The surfaces of the lower end of the second movable plate body (12) near the left and right sides of the flame sprayer (13) are both inclined surfaces. Dust suction ports (123) for adsorbing soot are arranged on both inclined surfaces. The two dust suction ports (123) are communicated through a communicating channel (1231). The end of the communicating channel (1231) is communicated with a negative pressure channel (112) arranged in the first movable plate body (11). The end of the negative pressure channel (112) is externally connected to an air pump through a negative pressure connecting pipe (1121) to create negative pressure at the dust suction ports (123) to adsorb soot. Magnetic blocks two (126) are respectively arranged on both sides of the communicating channel (1231). Magnetic blocks three (113) adsorbed to them are respectively arranged at corresponding positions of the first movable plate body (11) and the two magnetic blocks two (126). When the second movable plate body (12) abuts against the first movable plate body (11), the magnetic block two (126) is adsorbed to the magnetic block three (113). Neither the magnetic block two (126) nor the magnetic block three (113) protrudes from the surfaces of the second movable plate body (12) and the first movable plate body (11).

2. The asphalt concrete road unmanned paver with gas purification function according to claim 1, characterized in that, A filtering and separating component (100) communicating with two dust suction ports (123) is arranged in a communication channel (1231). A channel one (101) and a channel two (102) are respectively arranged in the filtering and separating component (100). The two ends of the two sides of the channel one (101) are respectively communicated with the two dust suction ports (123). One end of the channel two (102) is communicated with the middle part of the channel one (101), and the other end is communicated with the communication channel (1231). Two groups of convex block groups are symmetrically arranged in the middle of the channel one (101). Each group of convex block groups includes two raised blocks (103) arranged up and down. An arch-shaped cavity is formed in the inner side of the channel one (101) through the two groups of left and right convex block groups. The arch-shaped cavity forms a collecting dish through the two raised blocks (103) located at the lower side. And a filter cotton sheet (105) is arranged at the connection part of the channel two (102) and the channel one (101). The collecting dish is located directly below the filter cotton sheet (105). One-way valves (104) are arranged at both the left and right ends of the channel one (101). The air flow direction from the dust suction port (123) into the channel one (101) is the low-resistance direction of the air flow of the two one-way valves (104).

3. The asphalt concrete road unmanned paver with a gas purification function according to claim 1, characterized in that, The flame sprayer (13) communicates with a gas supply end outward through an elastic connection pipe. The elastic connection pipe includes a rubber connector (131) and a gas supply pipe (132). The flame sprayer (13) is connected to the gas supply pipe (132) through the rubber connector (131). The gas supply pipe (132) is wound around a button spring tensioning disc (1321) to contract the gas supply pipe (132) through the button spring tensioning disc (1321), so that the gas supply pipe (132) continuously remains in a taut state during the swing of the movable plate body two (12). The upper end of the rubber connector (131) is provided with an inwardly concave step edge. The surface of the step edge is provided with a raised threaded convex pipe (1311). When connecting, the end of the gas supply pipe (132) abuts against the surface of the step edge at the upper end of the rubber connector (131) and forms a threaded connection with the threaded convex pipe (1311). The gas supply pipe (132) and the rubber connector (131) form an interference fit connection.

4. The unmanned paver for asphalt concrete roads with a gas purification function according to claim 1, characterized in that, A driving cylinder (16) is swingably installed at the upper end of the movable plate body two (12). The output shaft of the driving cylinder (16) is connected to the movable plate body one (11) to drive the output shaft of the driving cylinder (16) to stretch and retract to control the swing of the movable plate body two (12).

5. The asphalt concrete road unmanned paver with gas purification function according to claim 1, characterized in that, A centrifugal motor (122) is further arranged on the outer side of the movable plate body two (12). The centrifugal motor (122) is arranged near one end of the slope (121) far from the communication discharge port (127).

6. The asphalt concrete road unmanned paver with a gas purification function according to claim 1, characterized in that, A gradually deepening groove (21) is arranged on the surface of the asphalt storage tank (2). A discharge port (22) communicated with the material conveying pipe (3) is arranged at the bottom of the gradually deepening groove (21) to convey asphalt into the material conveying pipe (3) through the discharge port (22).

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