Automatic leveling balance beam stabilizing device for asphalt paver and construction method thereof

Abstract

The application relates to the technical field of construction equipment, in particular to a construction method of an automatic leveling balance beam stabilizing device for an asphalt paver, which comprises a paver body; the application enhances the stiffness and the anti-disturbance capacity by reinforcing the first balance beam, the measure mainly takes the first balance beam itself as a main beam, a cable tower is arranged at the middle part of the first balance beam, first steel wires are symmetrically arranged on the two sides of the cable tower, the first steel wires are applied to suitable diameter steel wires and are provided with adjustable tensioning devices, finally, the first balance beam is reinforced and the anti-disturbance effect is realized, the lateral auxiliary reinforcement of the first balance beam is realized by using the stable structural members of the paver body to solve the transverse disturbance, the second steel wire is erected and installed at the stable point of the paver body body at a suitable position of the first balance beam, the adjustable tensioning device further reinforces and stabilizes the first balance beam, the balance is lengthened, the data range of paving and leveling is expanded, and the anti-disturbance capacity of the balance beam is improved by the application of the two reinforcement measures.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, specifically to an automatic leveling and stabilizing beam device for asphalt pavers and its construction method. Background Technology

[0002] The most important aspect of asphalt pavement construction quality control is the smoothness of the asphalt pavement. Excellent pavement smoothness ensures economical, comfortable, and safe vehicle passage. Better pavement smoothness extends pavement lifespan, saves on maintenance costs, and reduces the repair costs for various vehicles on the road. The paving of the asphalt mixture plays a decisive role in smoothness during pavement construction, and the paver is the main machinery used in asphalt pavement surface layer construction. Its performance and operation have the greatest impact on paving smoothness. The performance of the automatic leveling system is the decisive factor in whether the paver-paved pavement is smooth. This rationalization proposal focuses on improving and optimizing the performance of the paver's automatic leveling system. Our road rental company has been dedicated to road construction for over two decades, and pursuing high-quality road construction results has always been our goal. To pursue and ensure optimal asphalt surface smoothness, we have always been at the forefront of the industry in selecting leveling systems. We have accumulated a complete set of experience in improving the smoothness of asphalt pavements through adjustments to mechanical structures such as screeds, construction lines, and optimization of construction techniques. However, in recent years, we have encountered a bottleneck in improving the smoothness of asphalt pavements. As of 2021, the standard deviation of the smoothness of asphalt pavement construction projects participated in by the road rental company was difficult to exceed 0.8mm when tested by an eight-wheel tester. In the past, when the requirements for pavement smoothness were not high and meeting the specifications was sufficient, there was no major impact. However, under the pressure of industry competition and the requirements for high-quality development in the industry, high-quality pavements have become an increasingly necessary need for society and for the development of construction companies themselves. Therefore, we organized an expert team to observe and analyze the causes on the asphalt paving front line and look for further ways and measures to improve the smoothness. We believe that the common problem of balance beam vibration should be a breakthrough. In order to reduce the impact of this disturbance, the road rental company's R&D team, with a problem-oriented approach, combined with actual construction experience and mechanical knowledge, conducted anti-disturbance research on the balance beam.

[0003] During asphalt paving, the smoothness of the paved surface is achieved by the automatic leveling system configured on the paver, combined with various actuators of the asphalt paver. After years of experience and improvement in asphalt pavement construction, the most mature, stable, and effective automatic leveling system for asphalt paving in practical applications today consists of a balance beam, controller, ultrasonic sensors, and other sensors. Among these, the ultrasonic sensors and the balance beam are the core components. The balance beam is an extension mechanism on the paver body designed to house the ultrasonic sensors. Based on the signal acquisition principle of ultrasonic sensors, a longer balance beam provides greater stability and ensures higher accuracy, range, and stability of the signals acquired by the ultrasonic sensors. To reduce weight while maintaining rigidity, the balance beam is typically made of aluminum alloy, with a maximum length usually specified by the manufacturer of 8mm. During construction, insufficient support points and inadequate material strength can easily lead to vertical disturbances. This disturbance causes vibrations in the ultrasonic sensors installed underneath, affecting the accuracy and stability of the sensor signals and consequently the smoothness of the asphalt pavement. Furthermore, existing asphalt pavers release "asphalt fumes" during paving due to the high temperature of the asphalt, containing substances including, but not limited to, nitrogen oxides, sulfur oxides, carbon monoxide, particulate matter, and volatile organic compounds. These volatile gases can cause poisoning through skin contact and the respiratory tract. Current pavers lack suitable purification mechanisms to prevent asphalt poisoning. Summary of the Invention

[0004] To address the issue that during asphalt paving and leveling, insufficient support points and material strength can easily lead to vertical disturbances, which in turn cause disturbances to the ultrasonic sensors placed underneath. These disturbances affect the accuracy and stability of the sensor signals, thus impacting the smoothness of the asphalt paved surface. This invention provides an automatic leveling balance beam stabilization device for asphalt pavers and its construction method to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An automatic leveling and stabilizing beam device for an asphalt paver includes a paver body, a stabilizing component installed on the side wall of the paver body, a mounting bracket provided on the outer wall of the paver body, a mounting housing installed on the outer wall of the mounting bracket, a mounting hole provided on the outer wall of the mounting housing, a purification component installed on the outer wall of the mounting housing, and a sealing component installed on the inner wall of the mounting housing. The stabilizing component includes a fixed support mounted on the side wall of the paver body. A fixed sleeve is installed at one end of the fixed support. A first balance beam is inserted and connected to the inner wall of the fixed sleeve. A fixed block is installed on the outer wall of the first balance beam. A cable tower is installed on the outer wall of the fixed block. A tensioning device is installed on the outer wall of the cable tower. A first steel wire rope is installed on the outer wall of the tensioning device. One end of the first steel wire rope is connected to the end of the first balance beam. A second steel wire rope is installed on the side wall of the fixed support, and one end of the second steel wire rope is connected to the side wall of the paver body. A connecting block is installed on the outer wall of the first balance beam. A plug rod is installed on the inner wall of the connecting block, and an ultrasonic sensor is installed at one end of the plug rod. The purification assembly includes an air inlet housing and an industrial gas purifier. The air inlet housing is installed on the inner wall of the mounting hole. An exhaust fan is installed at the port of the air inlet housing. A connecting pipe is installed on the outer wall of the air inlet housing. An electrically controlled valve is installed on one side of the connecting pipe and on the outer wall of the air inlet housing. A toxic gas detector is installed on one side of the electrically controlled valve and on the outer wall of the mounting housing. The industrial gas purifier is installed on the outer wall of the mounting housing. An outlet pipe is installed at the outlet of the industrial gas purifier. One end of the outlet pipe is connected to the port of the connecting pipe. The sealed assembly includes a hinge and a human body sensor. The hinge is mounted on the outer wall of the mounting bracket, and a side door panel is mounted on one end of the hinge. An iron block is mounted on the outer wall of the side door panel, and an electromagnet is magnetically connected to the outer wall of the iron block. One end of the electromagnet is mounted on the inner wall of the mounting bracket. A controller is mounted on the inner wall of the side door panel, and an emergency door opening button is mounted on one side of the controller and on the inner wall of the side door panel. The human body sensor is mounted on the inner wall of the mounting housing, and a handle is mounted on the outer wall of the side door panel.

[0006] As a preferred embodiment of the present invention, the controller is connected to an ultrasonic sensor, an industrial gas purifier, an exhaust fan, an electrically controlled valve, a toxic gas detector, a human body sensor, an electromagnet, and an emergency door opening button via wires, and the connection method is electrical connection. The mounting bracket is located at the driver's seat position of the paver body.

[0007] As a preferred embodiment of the present invention, the fixed support is provided in multiple sets and is located on the side wall of the paver body, the fixed sleeve is provided in multiple sets and is located on the outer wall of the fixed support, the first balance beam is made of aluminum alloy, and the first balance beam is extended by 2 meters based on the original length of 8 meters.

[0008] As a preferred embodiment of the present invention, the cable tower is provided with two sets and is located on the outer wall of the first balance beam respectively; the first wire rope is provided with two sets and is located on the outer wall of the cable tower respectively; the first wire rope and the first balance beam form a triangular structure with each other; and the second wire rope is provided with two sets and is located on the inner wall of the first balance beam respectively.

[0009] As a preferred embodiment of the present invention, the connecting blocks are arranged in multiple sets and are respectively located on the outer wall of the first balance beam, the insert rods are arranged in multiple sets and are respectively located on the inner wall of the connecting blocks, the ultrasonic sensors are arranged in multiple sets and are respectively located on the outer wall of the insert rods, and the ultrasonic sensors are located directly below the first balance beam.

[0010] As a preferred embodiment of the present invention, the connection between the air intake housing and the electronically controlled valve is a continuous structure, the connection between the air outlet pipe and the connecting pipe is a continuous structure, multiple sets of hinges are provided and are respectively located on the outer wall of the mounting bracket, and two sets of side door panels are provided and are respectively located on the opposite side walls of the mounting bracket.

[0011] As a preferred embodiment of the present invention, the electromagnets are provided in two sets and are respectively located on the inner wall of the mounting bracket, the emergency door opening buttons are provided in two sets and are respectively located on the inner wall of the side door panel, the human body sensor is located directly above the driver's position of the paver body, and the handles are provided in two sets and are respectively located on the outer wall of the side door panel.

[0012] A construction method for an automatic leveling and balancing beam stabilization device for an asphalt paver, the specific steps of which are as follows: Step 1: Reinforce the first balance beam to increase stiffness and enhance its resistance to disturbance. This measure mainly uses the first balance beam itself as the main beam, sets up a pylon in the middle of the first balance beam, and sets up first steel wire ropes symmetrically on both sides of the pylon. The symmetrically installed inclined first steel wire ropes can be one or more sets depending on actual needs. The inclined first steel wire ropes should be made of steel wire ropes of appropriate diameter and equipped with adjustable tensioning devices to ultimately achieve the effect of reinforcing the first balance beam and resisting disturbance. Step 2: Utilize the stabilizing structural components of the paver body to provide lateral reinforcement to the first balance beam to address lateral disturbances. At a suitable location on the first balance beam, select a stable point on the paver body and install a second steel wire rope. An adjustable tensioning device further reinforces and stabilizes the first balance beam. Extending the balance beam expands the paving leveling data range. Due to the application of these two reinforcement measures, the balance beam's resistance to disturbance is improved. The first balance beam is extended by 2 meters from its original length of 8 meters, expanding the leveling data range and further improving the leveling effect. Through practical application and verification of this rationalization suggestion, compared with the best performance of the original balance beam, the standard deviation of flatness is improved by 0.1-0.2 points. After implementing this solution, the standard deviation of surface flatness can reach 0.4 mm. Step 3: Turn on the controller switch, which will open the electronically controlled valve and simultaneously control the exhaust fan to operate. This allows external airflow to enter the inner cavity of the mounting housing through the electronically controlled valve and the exhaust fan for ventilation. When asphalt paving is being carried out, if the concentration of toxic gases in the environment increases, the toxic gas detector will generate data based on the concentration of toxic gases in the environment. The toxic gas detector will generate an electrical signal, which will be transmitted to the controller via wires. This will cause the controller to close the electronically controlled valve, allowing the industrial gas purifier to operate and purify the external gas. The purified gas will then enter the inner cavity of the inlet housing through the outlet pipe and then enter the inner cavity of the mounting housing through the exhaust fan. This improves the safety of the device. Step 4: The human body sensor is installed on the inner wall of the mounting housing, directly above the driver's seat of the paver. When someone is operating the machine, the sensor generates an electrical signal that is transmitted to the controller via a wire. This energizes the electromagnet, causing the side door to close completely. This prevents injury from the operating equipment if someone gets out of the driver's seat before the machine has come to a complete stop. Only when the machine has completely stopped or the emergency door opening button is pressed will the controller de-energize the electromagnet, allowing the side door to open. This adds an extra layer of safety.

[0013] Compared with existing technologies, this invention enhances the rigidity and resistance to disturbance by setting up a reinforced first balance beam in the automatic leveling balance beam stabilization device and its construction method for asphalt pavers. This measure primarily uses the first balance beam itself as the main beam, with a pylon installed in the middle of the first balance beam. First steel wire ropes are symmetrically installed on both sides of the pylon. The symmetrically installed inclined first steel wire ropes can be one or more sets, depending on actual needs. These inclined first steel wire ropes use steel wire ropes of appropriate diameter and are equipped with adjustable tensioning devices to ultimately achieve the reinforcement and disturbance resistance effect of the first balance beam. Lateral auxiliary reinforcement of the first balance beam is achieved using the stabilizing structural components of the paver body to resolve lateral disturbances. A second steel wire rope is installed at a suitable location on the first balance beam at a stable point on the paver body. The tensioning device was adjusted to further reinforce and stabilize the first balance beam. The length of the balance beam was increased to expand the leveling data range. Due to the application of the two reinforcement measures, the balance beam's resistance to disturbance was improved. The first balance beam was lengthened by 2 meters from its original length of 8 meters, thereby expanding the leveling data range and further improving the leveling effect. Through practical application and testing of this rationalization suggestion, compared with the best performance of the original balance beam, the standard deviation of flatness was improved by 0.1-0.2 points. After the implementation of this scheme, the standard deviation of the surface flatness can reach 0.4mm. This solves the problem that insufficient support and material strength can easily cause vertical disturbance, which in turn causes disturbance to the ultrasonic sensor placed underneath. This disturbance will have a certain impact on the accuracy and stability of the sensor's signal acquisition, thus affecting the flatness of the asphalt paved surface.

[0014] The toxic gas detector generates data on toxic gases in the environment. The detector sends electrical signals, which are transmitted via wires to a controller. This controller then closes the electrically controlled valves, activating the industrial gas purifier to purify the incoming gas. The purified gas then enters the inner cavity of the intake housing through the exhaust pipe, and finally enters the inner cavity of the mounting housing through the exhaust fan. This improved safety of the device addresses the issue of asphalt fumes released during paving due to the high temperatures involved. These fumes contain substances including, but not limited to, nitrogen oxides, sulfur oxides, carbon monoxide, particulate matter, and volatile organic compounds. These volatile gases can cause poisoning through skin contact and the respiratory tract. Existing pavers lack suitable purification mechanisms to prevent asphalt poisoning during paving.

[0015] When someone is operating the machine in the driver's seat, a human body sensor generates an electrical signal, which is transmitted to the controller via a wire. The controller then energizes the electromagnet, causing the side door to close completely. This prevents potential injury from the running equipment if someone gets out of the driver's seat before the machine has come to a complete stop. Only when the device has completely stopped or the emergency door opening button is pressed will the controller de-energize the electromagnet, allowing the side door to open. This adds an extra safety measure, improving overall safety and addressing the problem of existing pavers where the driver's seat is not enclosed, leaving it completely open and posing a safety hazard if someone gets on or off while the machine is still running. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a schematic diagram of the stable component structure of the present invention; Figure 4 This is a schematic diagram of the purification component structure of the present invention; Figure 5 This is a schematic diagram of the tensioning device structure of the present invention; Figure 6 This is a schematic diagram of the exhaust fan structure of the present invention; Figure 7 This is a schematic diagram of the side door panel structure of the present invention.

[0017] In the diagram: 1. Paver body; 2. Stabilizing component; 201. Fixed bracket; 202. Fixed sleeve; 203. First balance beam; 204. Fixed block; 205. Cable tower; 206. Tensioning device; 207. First wire rope; 208. Second wire rope; 209. Connecting block; 210. Insert rod; 211. Ultrasonic sensor; 3. Mounting bracket; 4. Mounting housing; 5. Mounting hole; 6. Purification component; 601. Air inlet housing; 602. Industrial gas purifier; 603. Exhaust fan; 604. Connecting pipe; 605. Electrically controlled valve; 606. Toxic gas detector; 607. Gas outlet pipe; 7. Sealing component; 701. Hinge; 702. Human body sensor; 703. Side door panel; 704. Iron block; 705. Electromagnet; 706. Controller; 707. Emergency door opening button; 708. Handle. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Example: Please refer to Figure 1-7 The automatic leveling and stabilizing beam device for an asphalt paver shown includes a paver body 1, a stabilizing component 2 installed on the side wall of the paver body 1, a mounting bracket 3 provided on the outer wall of the paver body 1, a mounting housing 4 installed on the outer wall of the mounting bracket 3, a mounting hole 5 opened on the outer wall of the mounting housing 4, a purification component 6 installed on the outer wall of the mounting housing 4, and a sealing component 7 installed on the inner wall of the mounting housing 4. In this embodiment, specific references Figure 1 , Figure 2 , Figure 3 and Figure 5The stabilizing component 2 includes a fixed support 201, which is installed on the side wall of the paver body 1. Multiple sets of fixed supports 201 are located on the side wall of the paver body 1. A fixed sleeve 202 is installed at one end of each fixed support 201. Multiple sets of fixed sleeves 202 are located on the outer wall of the fixed support 201. A first balance beam 203 is plugged into the inner wall of the fixed sleeve 202. The first balance beam 203 is made of aluminum alloy and is 2 meters longer than its original length of 8 meters. A fixing block 204 is installed on the outer wall of the first balance beam 203. A cable tower 205 is installed on the outer wall of the fixing block 204. Two sets of cable towers 205 are located on the outer wall of the first balance beam 203. A tensioning device 206 is installed on the outer wall of the cable tower 205. A first wire rope 207 is installed on the outer wall of the tensioning device 206. Two sets of the first wire rope 207 are located on the cable tower. On the outer wall of 205, the first wire rope 207 and the first balance beam 203 form a triangular structure with each other. One end of the first wire rope 207 is connected to the port of the first balance beam 203. A second wire rope 208 is installed on the side wall of the fixed bracket 201. Two sets of the second wire rope 208 are provided and are located on the inner wall of the first balance beam 203 respectively. One end of the second wire rope 208 is connected to the side wall of the paver body 1. A connecting block 209 is installed on the outer wall of the first balance beam 203. Multiple sets of the connecting block 209 are provided and are located on the outer wall of the first balance beam 203 respectively. An insert rod 210 is installed on the inner wall of the connecting block 209. An ultrasonic sensor 211 is installed on one end of the insert rod 210. Multiple sets of the insert rod 210 are provided and are located on the inner wall of the connecting block 209 respectively. Multiple sets of the ultrasonic sensor 211 are provided and are located on the outer wall of the insert rod 210 respectively. The ultrasonic sensor 211 is located directly below the first balance beam 203. In this embodiment, specific references Figure 1 , Figure 4 and Figure 6 The purification component 6 includes an air inlet housing 601 and an industrial gas purifier 602. The air inlet housing 601 is installed on the inner wall of the mounting hole 5. The connection between the air inlet housing 601 and the electrically controlled valve 605 is a continuous structure. An exhaust fan 603 is installed at the port of the air inlet housing 601. A connecting pipe 604 is installed on the outer wall of the air inlet housing 601. An electrically controlled valve 605 is installed on one side of the connecting pipe 604 and on the outer wall of the air inlet housing 601. A toxic gas detector 606 is installed on one side of the electrically controlled valve 605 and on the outer wall of the mounting housing 4. The industrial gas purifier 602 is installed on the outer wall of the mounting housing 4. An outlet pipe 607 is installed at the outlet of the industrial gas purifier 602. The connection between the outlet pipe 607 and the connecting pipe 604 is a continuous structure. One end of the outlet pipe 607 is connected to the port of the connecting pipe 604. In this embodiment, specific references Figure 1 , Figure 4 and Figure 7 The sealing component 7 includes a hinge 701 and a human body sensor 702. The hinge 701 is mounted on the outer wall of the mounting bracket 3. Multiple sets of hinges 701 are provided and located on the outer wall of the mounting bracket 3. A side door panel 703 is mounted on one end of the hinge 701. Two sets of side door panels 703 are provided and located on opposite side walls of the mounting bracket 3. An iron block 704 is mounted on the outer wall of the side door panel 703. An electromagnet 705 is magnetically connected to the outer wall of the iron block 704. Two sets of electromagnets 705 are provided and located on the inner wall of the mounting bracket 3. One end of the electromagnet 705... A controller 706 is installed on the inner wall of the mounting bracket 3 and the inner wall of the side door panel 703. An emergency door opening button 707 is installed on one side of the controller 706 and on the inner wall of the side door panel 703. Two sets of emergency door opening buttons 707 are provided and are located on the inner wall of the side door panel 703 respectively. A human body sensor 702 is installed on the inner wall of the mounting housing 4 and is located directly above the driver's position of the paver body 1. A handle 708 is installed on the outer wall of the side door panel 703. Two sets of handles 708 are provided and are located on the outer wall of the side door panel 703 respectively.

[0020] The controller 706 is connected to the ultrasonic sensor 211, industrial gas purifier 602, exhaust fan 603, electric control valve 605, toxic gas detector 606, human body sensor 702, electromagnet 705 and emergency door opening button 707 via wires. Under the action of the electrical connection, the device is powered on. The mounting bracket 3 is located at the driver's seat position of the paver body 1, so that the mounting bracket 3 completely covers the driver's seat, and the airtightness is better.

[0021] This solution describes an automatic leveling and stabilizing beam device for asphalt pavers, along with its construction method. During operation, the first stabilizing beam 203 is reinforced to increase rigidity and enhance its resistance to disturbance. This measure primarily uses the first stabilizing beam 203 itself as the main beam. A pylon 205 is installed in the middle of the first stabilizing beam 203, and first steel wire ropes 207 are symmetrically installed on both sides of the pylon 205. The symmetrically installed inclined first steel wire ropes 207 can be in one or multiple sets, depending on actual needs. These inclined first steel wire ropes 207 use steel wire ropes of appropriate diameter and are equipped with adjustable tensioning devices 206 to ultimately achieve the reinforcement and disturbance resistance effect of the first stabilizing beam 203. Lateral auxiliary reinforcement of the first stabilizing beam 203 is achieved using the stabilizing structural components of the paver body 1 to resolve lateral disturbances. The device is erected at a suitable location on the first stabilizing beam 203 at a stable point on the paver body 1. The installation of a second steel wire rope 208 and an adjustable tensioning device 206 further reinforces and stabilizes the first balance beam 203. The extended balance beam expands the range of leveling data for paving. The application of these two reinforcement measures enhances the balance beam's resistance to disturbance. The first balance beam 203 is extended by 2 meters from its original length of 8 meters, further expanding the leveling data range and improving the leveling effect. Through practical application and testing of this rationalization suggestion, compared with the best performance of the original balance beam, the standard deviation of flatness improved by 0.1-0.2 points. After implementing this scheme, the standard deviation of surface flatness can reach 0.4 mm, thus solving the problem of vertical disturbance caused by insufficient support and material strength, which in turn causes disturbance to the ultrasonic sensors placed underneath. This disturbance affects the accuracy and stability of the sensor's signal acquisition, thereby impacting the flatness of the asphalt paved surface.

[0022] An exhaust fan 603 is installed at the port of the intake housing 601. A connecting pipe 604 is installed on the outer wall of the intake housing 601. An electrically controlled valve 605 is installed on one side of the connecting pipe 604 and on the outer wall of the intake housing 601. When the controller 706 is turned on, the controller 706 controls the electrically controlled valve 605 to open. At the same time, the controller 706 controls the exhaust fan 603 to operate, so that the outside airflow enters the inner cavity of the mounting housing 4 through the electrically controlled valve 605 and the exhaust fan 603 for ventilation. Meanwhile, a toxic gas detector 606 is installed on the outer wall of the mounting housing 4. When asphalt paving is carried out, if the concentration of toxic gases in the environment increases, the toxic gas detector 606 generates data based on the concentration of toxic gases in the environment. The toxic gas detector 606 generates an electrical signal, which is transmitted through wires to the controller 706, causing the controller 706 to close the electrically controlled valve 605. Meanwhile, the industrial gas purifier 602 is installed on the outer wall of the mounting housing 4. An outlet pipe 607 is installed at the outlet of the industrial gas purifier 602. One end of the outlet pipe 607 is connected to the port of the connecting pipe 604, enabling the industrial gas purifier 602 to draw in and purify external gas. The purified gas then enters the inner cavity of the intake housing 601 through the outlet pipe 607, and then enters the inner cavity of the mounting housing 4 through the exhaust fan 603. This improves the safety of the device and addresses the issue that asphalt fumes are released during paving due to the high temperature, containing substances including but not limited to nitrogen oxides, sulfur oxides, carbon monoxide, particulate matter, and volatile organic compounds. These volatile gases can cause poisoning through skin contact and respiratory tract contact. Existing pavers lack suitable purification structures to prevent asphalt poisoning during paving.

[0023] A human body sensor 702 is installed on the inner wall of the mounting housing 4, positioned directly above the driver's seat of the paver body 1. When someone is operating the paver, the human body sensor 702 generates an electrical signal, which is transmitted to the controller 706 via a wire. An iron block 704 is installed on the outer wall of the side door panel 703, and an electromagnet 705 is magnetically connected to its outer wall. One end of the electromagnet 705 is installed on the inner wall of the mounting bracket 3. The controller 706 then energizes the electromagnet 705, causing the side door panel... 703 is completely closed to prevent people from getting out of the driver's seat while the machine is still running and could be injured by the operating equipment. Only when the device has completely stopped or the emergency door opening button 707 is pressed will the controller 706 de-energize the electromagnet 705, allowing the side door 703 to open. This adds an extra safety measure, improving safety and solving the problem that existing pavers do not have a sealed driver's seat, and the driver's seat is completely open, which could cause injury if people get on or off while the machine is still running.

[0024] 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 leveling and balancing beam stabilizing device for an asphalt paver, comprising a paver body (1), characterized in that: A stabilizing component (2) is installed on the side wall of the paver body (1), a mounting bracket (3) is provided on the outer wall of the paver body (1), a mounting housing (4) is installed on the outer wall of the mounting bracket (3), a mounting hole (5) is opened on the outer wall of the mounting housing (4), a purification component (6) is installed on the outer wall of the mounting housing (4), and a sealing component (7) is installed on the inner wall of the mounting housing (4). The stabilizing component (2) includes a fixed bracket (201), which is installed on the side wall of the paver body (1). A fixed sleeve (202) is installed at one end of the fixed bracket (201). A first balance beam (203) is inserted and pulled onto the inner wall of the fixed sleeve (202). A fixed block (204) is installed on the outer wall of the first balance beam (203). A cable tower (205) is installed on the outer wall of the fixed block (204). A tensioning device (206) is installed on the outer wall of the cable tower (205). A first steel wire rope (207) is installed on the outer wall of the 06), one end of the first steel wire rope (207) is connected to the port of the first balance beam (203), a second steel wire rope (208) is installed on the side wall of the fixed bracket (201), one end of the second steel wire rope (208) is connected to the side wall of the paver body (1), a connecting block (209) is installed on the outer wall of the first balance beam (203), a plug rod (210) is installed on the inner wall of the connecting block (209), and an ultrasonic sensor (211) is installed at one end of the plug rod (210). The purification component (6) includes an air inlet housing (601) and an industrial gas purifier (602). The air inlet housing (601) is installed on the inner wall of the mounting hole (5). An exhaust fan (603) is installed at the port of the air inlet housing (601). A connecting pipe (604) is installed on the outer wall of the air inlet housing (601). An electric control valve (605) is installed on one side of the connecting pipe (604) and on the outer wall of the air inlet housing (601). A toxic gas detector (606) is installed on one side of the electric control valve (605) and on the outer wall of the mounting housing (4). The industrial gas purifier (602) is installed on the outer wall of the mounting housing (4). An outlet pipe (607) is installed at the outlet of the industrial gas purifier (602). One end of the outlet pipe (607) is connected to the port of the connecting pipe (604). The sealing assembly (7) includes a hinge (701) and a human body sensor (702). The hinge (701) is mounted on the outer wall of the mounting bracket (3). A side door panel (703) is mounted on one end of the hinge (701). An iron block (704) is mounted on the outer wall of the side door panel (703). An electromagnet (705) is magnetically connected to the outer wall of the iron block (704). One end of the electromagnet (705) is mounted on the inner wall of the mounting bracket (3). A controller (706) is mounted on the inner wall of the side door panel (703). An emergency door opening button (707) is mounted on one side of the controller (706) and on the inner wall of the side door panel (703). The human body sensor (702) is mounted on the inner wall of the mounting housing (4). A handle (708) is mounted on the outer wall of the side door panel (703). The controller (706) is connected to an ultrasonic sensor (211), an industrial gas purifier (602), an exhaust fan (603), an electric control valve (605), a toxic gas detector (606), a human body sensor (702), an electromagnet (705), and an emergency door opening button (707) via wires, and the connection is electrical. The mounting bracket (3) is located at the driver's seat of the paver body (1).

2. The automatic leveling and balancing beam stabilizing device for an asphalt paver according to claim 1, characterized in that: The fixed support (201) is provided in multiple sets and is located on the side wall of the paver body (1). The fixed sleeve (202) is provided in multiple sets and is located on the outer wall of the fixed support (201). The first balance beam (203) is made of aluminum alloy and is extended by 2 meters based on the original length of 8 meters.

3. The automatic leveling and balancing beam stabilizing device for an asphalt paver according to claim 1, characterized in that: The cable tower (205) is provided with two sets and is located on the outer wall of the first balance beam (203). The first wire rope (207) is provided with two sets and is located on the outer wall of the cable tower (205). The first wire rope (207) and the first balance beam (203) form a triangular structure with each other. The second wire rope (208) is provided with two sets and is located on the inner wall of the first balance beam (203).

4. The automatic leveling and balancing beam stabilizing device for an asphalt paver according to claim 1, characterized in that: Multiple sets of connecting blocks (209) are provided and are respectively located on the outer wall of the first balance beam (203). Multiple sets of insert rods (210) are provided and are respectively located on the inner wall of the connecting blocks (209). Multiple sets of ultrasonic sensors (211) are provided and are respectively located on the outer wall of the insert rods (210). The ultrasonic sensors (211) are located directly below the first balance beam (203).

5. The automatic leveling and balancing beam stabilizing device for an asphalt paver according to claim 1, characterized in that: The connection between the air intake housing (601) and the electric control valve (605) is a continuous structure, the connection between the air outlet pipe (607) and the connecting pipe (604) is a continuous structure, the hinge (701) is provided in multiple sets and is located on the outer wall of the mounting bracket (3), and the side door panel (703) is provided in two sets and is located on the opposite side wall of the mounting bracket (3).

6. The automatic leveling and balancing beam stabilizing device for an asphalt paver according to claim 1, characterized in that: Two sets of electromagnets (705) are provided and are located on the inner wall of the mounting bracket (3), two sets of emergency door opening buttons (707) are provided and are located on the inner wall of the side door panel (703), the human body sensor (702) is located directly above the driver's position of the paver body (1), and two sets of handles (708) are provided and are located on the outer wall of the side door panel (703).

7. The construction method of the automatic leveling and balancing beam stabilization device for an asphalt paver according to any one of claims 1-6, the specific steps of which are as follows: Step 1: Reinforce the first balance beam (203) to increase stiffness and enhance anti-disturbance capability. The first balance beam (203) itself is the main beam. A pylon (205) is set in the middle of the first balance beam (203). First steel wire ropes (207) are symmetrically set on both sides of the pylon (205). The symmetrically installed inclined first steel wire ropes (207) can be one or more sets according to actual needs. The inclined first steel wire ropes (207) should be steel wire ropes of appropriate diameter and equipped with adjustable tensioning devices (206) to finally achieve the effect of reinforcing the first balance beam (203) and resisting disturbance. Step 2: Use the stabilizing structural components of the paver body (1) to reinforce the first balance beam (203) laterally to solve the lateral disturbance. Select the stabilizing point of the paver body (1) at a suitable position on the first balance beam (203) and install the second steel wire rope (208). The adjustable tensioning device (206) reinforces and stabilizes the first balance beam (203). Lengthen the first balance beam (203) to expand the paving leveling data range. Due to the application of the two reinforcement measures, the balance beam's anti-disturbance ability is improved. The first balance beam (203) is lengthened by 2 meters on the basis of the original length of 8 meters, which expands the leveling data range and improves the leveling effect. Compared with the best performance of the original balance beam, the flatness standard deviation is improved by 0.1-0.2 points, and the surface flatness standard deviation can reach 0.4mm. Step 3: Turn on the switch of the controller (706) so that the controller (706) controls the electric valve (605) to open. At the same time, the controller (706) controls the exhaust fan (603) to operate, so that the airflow from the outside enters the inner cavity of the mounting housing (4) through the electric valve (605) and the exhaust fan (603) for ventilation. When asphalt paving is carried out, when the toxic gas in the environment increases, the toxic gas detector (606) generates data based on the toxic gas in the environment. The toxic gas detector (606) generates an electrical signal and transmits it to the controller (706) through the wires. This causes the controller (706) to control the electric valve (605) to close, so that the industrial gas purifier (602) operates to purify the gas drawn in from the outside. The purified gas enters the inner cavity of the air inlet housing (601) through the air outlet pipe (607) and then enters the inner cavity of the mounting housing (4) through the exhaust fan (603). The device is safer. Step 4: The human body sensor (702) is installed on the inner wall of the mounting housing (4). The human body sensor (702) is located directly above the driver's seat of the paver body (1). When someone is operating the driver's seat, the human body sensor (702) generates an electrical signal, which is transmitted to the controller (706) through the wire. The controller (706) then controls the electromagnet (705) to be energized, so that the side door (703) is completely closed. This is to prevent people from getting off the driver's seat and being injured by the running equipment before the machine has stopped running. Only when the device has completely stopped or the emergency door opening button (707) is pressed will the controller (706) de-energize the electromagnet (705) and the side door (703) be opened. This adds an extra safety measure and makes the machine safer.

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