Real-time compaction degree monitoring device in highway pavement construction process

Abstract

The invention discloses a real-time compaction degree monitoring device in the highway pavement construction process, and relates to the technical field of highway pavement construction, the real-time compaction degree monitoring device comprises an intermittent scraping assembly, the intermittent scraping assembly is arranged in a compaction roller, the intermittent scraping assembly comprises a worm, a bearing table and a plurality of scraping brush strips, and under the connection of the bearing table, the worm is driven by the worm to rotate; the worm moves up and down to drive a plurality of scraping brush strips to intermittently rub with the compaction sensor, so that damage caused by continuous scraping between the scraping brush strips and the compaction sensor is avoided; the intermittent scraping assembly comprises a heat touch frame, a magnet is arranged in the heat touch frame, and the reed switch makes contact with the magnet to achieve circuit connection, so that the multiple scraping brush strips are heated to reduce the adhesive force of impurities; when the temperature reaches the melting point of ice, the ice begins to melt into water, so that the purpose of unfreezing is achieved, the adhesive force between impurities and the surface of the compaction sensor is weakened, and the impurity falling speed can be increased in cooperation with scraping of the scraping brush strip and the compaction sensor.

Description

Technical Field

[0001] This invention relates to the field of highway pavement construction technology, specifically to a real-time monitoring device for compaction during highway pavement construction. Background Technology

[0002] During highway construction, real-time monitoring of compaction is crucial for ensuring pavement quality and construction safety. Compaction monitoring devices help engineers obtain relevant compaction data in a timely manner, enabling necessary adjustments and improvements. These devices include mechanical compaction detectors that directly measure compaction at the construction site using sensors. They are simple to operate and suitable for rapid on-site testing, ensuring that the compaction of pavement materials meets design standards and preventing pavement settlement and cracking caused by improper compaction. By setting reasonable thresholds, the system automatically alarms when compaction fails to meet standards, prompting construction personnel to take corrective action. Regular calibration and maintenance of the equipment are necessary to ensure measurement accuracy and normal equipment operation.

[0003] Real-time monitoring devices detect road surface conditions through compaction sensors, saving manpower and time and improving project progress. However, patent CN120559213A discloses a real-time monitoring device and method for compaction during asphalt pavement construction. It mainly uses a cleaning rack to clean impurities from the compaction sensor. However, in cold environments, impurities and the outer surface of the compaction sensor will have a strong bond due to condensation. The solidified impurities are not easy to remove by the cleaning rack, and the accumulation of impurities affects the performance of the sensor. At the same time, some impurities will remain on the surface when the cleaning rack removes them. If they are not cleaned in time at the beginning, the adhesion of the impurities will increase over time, which will increase the labor intensity of subsequent cleaning. The accumulation of impurities will cause the cleaning rack to lose its cleaning precision. Summary of the Invention

[0004] The purpose of this invention is to provide a real-time compaction monitoring device during highway pavement construction, in order to solve the problem mentioned in the background art that impurities and the outer surface of the compaction sensor will have a large bonding force due to condensation, and the solidified impurities are not easy to remove by the cleaning rack, and the accumulation of impurities will affect the performance of the sensor.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a real-time compaction monitoring device during highway pavement construction, comprising; Monitoring vehicle; The compaction frame, compaction roller, and monitoring trough are equipped with compaction sensors inside the monitoring trough, which are used to monitor the compaction degree of the road surface in real time by contacting the compaction sensors with the road surface. An intermittent scraping assembly is installed inside the compaction roller. The intermittent scraping assembly includes a worm gear, a support platform, and multiple scraping brushes. With the support platform connected, the worm gear moves up and down, causing the multiple scraping brushes to intermittently rub against the compaction sensor, thus avoiding damage caused by continuous scraping between the scraping brushes and the compaction sensor. The intermittent scraping assembly includes a heated frame with a magnet installed inside. The magnet is used to connect a reed switch to the circuit and heat multiple scraping brushes to reduce the adhesion of impurities. A passive shaking component is installed inside an intermittent scraping component. The passive shaking component includes a force-receiving wheel and a force-applying wheel. The force-receiving wheel and the force-applying wheel contact each other, causing the scraping brush to shake repeatedly, so as to shake off the impurities attached to the surface in a timely manner.

[0006] Preferably, two positioning discs are symmetrically installed inside the compaction roller, and a support frame is installed between them to support the intermittent scraping component and the passive shaking component. A U-shaped frame is installed on one side of the support frame to support the servo motor.

[0007] Preferably, the intermittent scraping assembly includes two support plates, one end of each support plate being inserted and connected to one side of the U-shaped frame, and two second gears are fitted to make them rotate smoothly in a circular motion. The two worm gears rotate in the same direction, causing the worm to move up and down, thereby adjusting the contact area between the scraping brush and the compaction sensor.

[0008] Preferably, the intermittent scraping assembly includes a reinforcing rod and a reinforcing plate. The reinforcing plate is installed at one end of the worm gear. The movement of the worm gear causes the reinforcing plate to move at one end of the reinforcing rod, thereby enhancing the stability of the displacement of the intermittent scraping assembly.

[0009] Preferably, the intermittent scraping assembly includes a heat-conducting plate, a reinforcing plate, and multiple reinforcing ribs. The heat-conducting plate and the reinforcing plate are connected by multiple reinforcing ribs, and the movement of the support platform drives the heat-conducting plate connected to it to move synchronously.

[0010] Preferably, the intermittent scraping assembly includes a first resistance wire, a heat transfer plate, a heat conduction plate, and a second resistance wire. The first resistance wire is filled inside the heated frame, the heat transfer plate is filled inside the support platform, the heat conduction plate is filled inside the heat conduction plate, and the second resistance wire is filled inside the scraping brush. The intermittent scraping assembly includes a relay. The contact between the heated frame and the heated frame enables the circuit to be turned on, which is used to energize the relay coil. The current passes through the first and second resistance wires to heat them. The heat is then conducted to the scraping brush through the heat transfer plate and the heat conduction plate to soften the condensed impurities and the compaction sensor, thereby accelerating the impurity removal efficiency.

[0011] Preferably, the passive shaking assembly includes an embedded block, a displacement plate, an auxiliary strip, and an L-shaped block. The embedded block is installed inside the support frame and fixed to one side of a plurality of force-applying wheels. The displacement plate is installed on the top of the support platform. The auxiliary strip is installed inside the displacement plate. The L-shaped block is movably sleeved on one end of the auxiliary strip, and one side of the L-shaped block is fixed to one side of the heat-conducting plate.

[0012] Preferably, as the heat-conducting disk rises, the multiple force-receiving wheels gradually press and contact with the multiple force-applying wheels, causing the heat-conducting disk to move to one side under the action of force.

[0013] Preferably, the passive shaking component includes a spring, one end of which is fixed to one side of the L-shaped block. Under the elastic action of the spring, the heat-conducting plate moves repeatedly left and right, shaking off the impurities attached to the surface of the multiple scraping brushes as they move left and right.

[0014] A monitoring method for a real-time compaction degree monitoring device during highway pavement construction includes the following steps: S1: Start the monitoring system: Ensure that the compaction sensor is in normal working condition, and remotely start the monitoring vehicle via remote control to facilitate compaction monitoring at different monitoring locations; S2: Data recording: The monitoring system transmits the collected compaction data to the central processing unit in real time via wireless means; S3: Information feedback: The system can display compaction data in real time and provide alarms. If the compaction is found to be substandard, it will promptly provide feedback to the construction personnel. S4: Heating to eliminate adhesion: By starting the servo motor, the two worm gears rotate synchronously under the meshing connection of the two second gears and the first gear, which in turn drives the worm to move up and down intermittently, and then makes multiple scraping brushes embed into the inside of the monitoring groove and scrape the outer surface of the compaction sensor. S5: The rising of the heated frame and its contact with the heated frame enable power supply. Heat is then conducted to the compaction sensor and the surface of the impurities by scraping the brush strip, melting the frost formed on their surface and thus reducing the adhesion of the impurities.

[0015] Compared with the prior art, the beneficial effects of the present invention are: In this invention, by starting the servo motor, the first gear connected to its output shaft rotates. When the first gear rotates counterclockwise, it drives the second gears meshing with it on both sides to rotate clockwise, which in turn drives the two support plates to rotate clockwise on one side of the U-shaped frame. Simultaneously, the two worm gears rotate clockwise, causing the worm gear meshing with them in the middle to move upwards. Since the support platform and multiple scraping brushes are connected via a heat-conducting plate, and one end of the worm gear is fixed to the bottom of the support platform, the multiple scraping brushes gradually approach the corresponding compaction sensors. Upon contact, the scraping of the surface of the compaction sensors by the scraping brushes removes impurities. Therefore, as the worm gear moves upwards, the support platform also drives the multiple scraping brushes upwards. By setting the meshing of the first gear with the two second gears, the two worm gears mesh with the worm gear to achieve the lifting and lowering of the scraping brushes. To improve the accuracy of gear transmission and avoid worm gear seizing, the scraping brush strips are obliquely interwoven and distributed within the inner circumference of the heat-conducting plate. This distribution ensures close contact with the outer surface of the compaction sensor, while the oblique angle enhances the scraping force of the brush strips on the compaction sensor's outer surface. By adjusting the relative position of the magnet and the reed switch, the switching state of the reed switch can be controlled. The closing action of the reed switch can trigger the relay to turn on or off. As the temperature of the second resistance wire rises, the temperature of the scraping brush strips will also rise. When the scraping brush strips come into contact with the frosted impurities on the surface of the compaction sensor, they will transfer heat to the frosted surface. The temperature of the frosted surface rises and begins to approach the melting point of ice. When the temperature reaches the melting point of ice, the ice begins to melt into water, thus achieving the purpose of thawing. The adhesion between the impurities and the surface of the compaction sensor weakens, and together with the scraping of the compaction sensor by the scraping brush strips, the speed at which the impurities fall off is accelerated.

[0016] In this invention, the force-receiving wheel and the force-applying wheel are designed in an arc shape. During their contact, they generate regular fluctuations. The regular rebound and compression of the spring causes the heat-conducting plate to repeatedly sway left and right. The left and right swaying of the scraping brush generates a certain vibration, which is transmitted to the surface. This vibration can break the adhesion between the impurities attached to the surface and the substrate, making the adhesion of the impurities unstable. The movement of the scraping brush provides sufficient kinetic energy to make the impurities overcome gravity and adhesion, thus being thrown off and shaken off. During the left and right swaying process, the scraping brush generates friction, making the impurities easier to clean. By shaking off the impurities, the working environment and the surface of the equipment can be kept clean, reducing the impact of impurities on the performance of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main view of a real-time compaction monitoring device for highway pavement construction according to the present invention. Figure 2This is a schematic diagram of the installation position of the compaction roller in a real-time compaction degree monitoring device during highway pavement construction according to the present invention. Figure 3 This is a schematic diagram of the internal cross-sectional structure of the compaction roller in a real-time compaction degree monitoring device during highway pavement construction according to the present invention. Figure 4 This is a schematic diagram of the installation position of the scraper in a real-time compaction monitoring device for highway pavement construction according to the present invention. Figure 5 This is a schematic diagram of the intermittent scraping component in a real-time compaction monitoring device for highway pavement construction according to the present invention. Figure 6 This invention relates to a real-time compaction monitoring device for highway pavement construction. Figure 5 An enlarged structural diagram at point A; Figure 7 This invention relates to a real-time compaction monitoring device for highway pavement construction. Figure 5 An enlarged structural diagram at point B; Figure 8 This is a schematic diagram of the passive shaking component in a real-time compaction monitoring device for highway pavement construction according to the present invention. Figure 9 This is a schematic diagram of the installation position of the force-applying wheel in a real-time compaction monitoring device for highway pavement construction according to the present invention. Figure 10 This is a schematic diagram of the internal structure of the scraping brush in a real-time compaction monitoring device for highway pavement construction according to the present invention.

[0018] In the diagram: 100, monitoring vehicle; 200, compaction frame; 300, compaction roller; 311, monitoring trough; 312, compaction sensor; 313, wheel; 400, positioning plate; 500, support frame; 600, U-shaped frame; 1, intermittent scraping assembly; 101, worm gear; 102, servo motor; 103, reinforcing rod; 104, reinforcing plate; 105, first gear; 106, support plate; 107, second gear; 108, worm gear; 109, support platform; 110. Heating frame; 111. Contact frame; 112. Relay; 113. Heat-conducting plate; 114. Reinforcing plate; 115. Reinforcing rib; 116. Scraping brush; 117. First resistance wire; 118. Heat transfer plate; 119. Heat-conducting plate; 120. Second resistance wire; 2. Passive shaking assembly; 201. Force-receiving wheel; 202. Embedded block; 203. Force-applying wheel; 204. Displacement plate; 205. Auxiliary strip; 206. Spring; 207. L-shaped block. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To address the problem that existing real-time compaction monitoring devices for highway pavement construction suffer from condensation on the outer surface of the compaction sensor 312 during operation, leading to strong adhesion between impurities and the sensor, making it difficult to remove the solidified impurities using a cleaning rack, and thus affecting sensor performance, this invention provides a real-time compaction monitoring device for highway pavement construction. (Refer to...) Figure 1 and Figure 2 As shown: including: 100 monitoring vehicles; The compaction frame 200, compaction roller 300, and monitoring groove 311 are provided. The monitoring groove 311 is equipped with a compaction sensor 312, which is used to monitor the compaction degree of the road surface in real time through the contact between the compaction sensor 312 and the road surface. Intermittent scraping assembly 1 is installed inside the compaction roller 300. The intermittent scraping assembly 1 includes a worm gear 101, a support platform 109 and multiple scraping brushes 116. With the support platform 109 connected, the worm gear 101 moves up and down, causing the multiple scraping brushes 116 to intermittently rub against the compaction sensor 312, thus avoiding damage caused by continuous scraping between the scraping brushes 116 and the compaction sensor 312. The intermittent scraping assembly 1 includes a heating frame 111, which is equipped with a magnet. The reed switch contacts the magnet to connect the circuit and heat multiple scraping brushes 116 to reduce the adhesion of impurities. The passive shaking component 2 is installed inside the intermittent scraping component 1. The passive shaking component 2 includes a force receiving wheel 201 and a force applying wheel 203. The force receiving wheel 201 and the force applying wheel 203 contact each other, causing the scraping brush 116 to shake repeatedly, so as to shake off the impurities attached to the surface in time.

[0021] First, select an appropriate type of compaction sensor 312 according to construction requirements. These sensors can typically monitor and record the compaction degree of soil and subgrade in real time. The compaction sensor 312 is designed as a static compaction sensor, model TML, which measures soil compaction degree through static loading. Before use, the sensor is accurately calibrated to ensure the accuracy of its monitoring data. The monitoring vehicle 100 is moved to the designated monitoring point via remote control, ensuring that the compaction sensor 312 is in close contact with the road surface being measured. The static compaction sensor measures the compaction degree of soil and road surface by applying a certain static pressure. During the compaction process of the compaction roller 300 rolling the road surface, the compaction sensor 312 can... The compaction degree of the material is assessed by utilizing the applied pressure and the feedback information from the compaction sensor 312. The monitoring device is activated by remote control, which enables the compaction sensor 312 to start working and collect data in real time. The monitoring vehicle 100 will record the compaction data in real time, including compaction degree, temperature, and humidity parameters, and generate a data trend chart. The monitoring interface can display the current monitoring data in real time, which makes it easy for construction personnel to understand the compaction status in a timely manner. Based on the compaction data obtained from the monitoring, the construction team can adjust the construction methods and equipment in a timely manner to ensure that the compaction degree meets the design standards. During the construction process, the monitoring vehicle 100 is regularly inspected and maintained to ensure its normal operation and avoid the impact of equipment failure on the monitoring results.

[0022] Furthermore, the bottom of the monitoring vehicle 100 is equipped with multiple wheels 313, which smoothly move the monitoring vehicle 100 to the location where the road surface compaction needs to be monitored when the controller controls the movement of the monitoring vehicle 100.

[0023] Preferred, according to Figure 4 As shown, two positioning discs 400 are symmetrically installed inside the compaction roller 300, and a support frame 500 is installed between them to support the intermittent scraping component 1 and the passive shaking component 2. A U-shaped frame 600 is installed on one side of the support frame 500 to support the servo motor 102. The compaction roller 300 has two positioning discs 400 fixedly installed inside, and the support frame 500 is fixedly installed between the two positioning discs 400. A U-shaped frame 600 is fixedly installed on one side of the support frame 500. The connection between 0 and the positioning disk 400 causes the intermittent scraping assembly 1 to rotate synchronously with the compaction roller 300. Multiple scraping brushes 116 are located directly below multiple compaction sensors 312. During the up-and-down movement of the intermittent scraping assembly 1, the multiple scraping brushes 116 move along with it and can just wrap around the outer surface of the compaction sensor 312. The multiple scraping brushes 116 move back and forth on the outer surface of the compaction sensor 312 and then scrape the impurities attached to the surface of the compaction sensor 312.

[0024] To address the issue that impurities and the outer surface of the compaction sensor 312 become difficult to clean due to condensation in cold environments, an intermittent scraping component 1 is used to heat the surface of the impurities and the compaction sensor 312. This reduces the solidification force of the impurities, allowing them to fall off more quickly under the scraping action of the scraping brush 116.

[0025] Preferably, the specific working process of the intermittent scraping component 1 is as follows: Figure 3 and Figure 5 As shown, the intermittent scraping assembly 1 includes two support plates 106, one end of which is respectively inserted into one side of the U-shaped frame 600. Two second gears 107 are fitted onto each other to allow them to rotate smoothly in a circular motion. The two worm gears 108 rotate in the same direction, causing the worm 101 to move up and down, thus adjusting the contact area between the scraping brush 116 and the compaction sensor 312. The intermittent scraping assembly 1 includes a reinforcing rod 103 and a reinforcing plate 104. The reinforcing plate 104 is installed at one end of the worm 101. The movement of the worm 101 causes the reinforcing plate 104 to move at one end of the reinforcing rod 103, enhancing the stability of the displacement of the intermittent scraping assembly 1. A servo motor 102 is fixedly mounted on the U-shaped frame. On one side of the U-shaped frame 600, the output shaft of the servo motor 102 is connected to one end of the first gear 105. Two support plates 106 are inserted and connected to one side of the U-shaped frame 600. A second gear 107 is fixedly fitted onto one end of each support plate 106, and a worm gear 108 is fixedly fitted onto the other end of each support plate 106. The worm 101 is located in the middle of the two worm gears 108. A reinforcing rod 103 is fixedly installed inside the support frame 500. A reinforcing plate 104 is movably fitted onto one end of the reinforcing rod 103. One end of the reinforcing plate 104 is fixedly connected to one end of the worm 101. By starting the servo motor 102, the first gear 105, which is connected to its output shaft, is driven to rotate. (Reference) Figure 5 and Figure 6When the first gear 105 rotates counterclockwise, it drives the second gears 107 meshing with it on both sides to rotate clockwise, which in turn drives the two support plates 106 to rotate clockwise on one side of the U-shaped frame 600. Simultaneously, the two worm gears 108 rotate clockwise, causing the worm 101 meshing with them in the middle to move upwards. Since the support platform 109 is connected to the multiple scraping brush strips 116 via the heat-conducting plate 113, and one end of the worm 101 is fixed to the bottom of the support platform 109, therefore... As the worm gear 101 moves upward, the support platform 109 also drives multiple scraping brushes 116 to move upward. The multiple scraping brushes 116 gradually approach the corresponding compaction sensor 312, and the two come into contact. Under the scraping of the surface of the compaction sensor 312 by the scraping brushes 116, impurities can be removed. The reinforcing plate 104 moves with the movement of the worm gear 101, and the reinforcing plate 104 moves at one end of the reinforcing rod 103. Since the friction between the two is small, the smoothness of their movement is improved.

[0026] Continue to refer to the appendix Figure 9 It can be seen that the two worm gears 108 are gears with the same number of teeth and the same structure. The worm 101 is located in the middle of the two worm gears 108, and its two sides are meshed with the two worm gears 108 respectively. The worm 101 is always raised and lowered in a vertical state under the movement of the reinforcing plate 104, so that the scraping brush 116 can be centered and wrap around the compaction sensor 312. This is to enhance the accuracy of the coverage and adhesion between the scraping brush 116 and the outer surface of the compaction sensor 312. By setting the first gear 105 to mesh with the two second gears 107, the two worm gears 108 are driven to mesh with the worm 101 to realize the raising and lowering of the scraping brush 116. This can improve the accuracy of gear transmission and avoid the worm 101 from seizing. When the first gear 105 rotates clockwise, it drives the second gears 107 meshed on both sides to rotate counterclockwise, which in turn drives the two worm gears 108 to rotate counterclockwise. (See attached diagram) Figure 9The toothed surface of the right-side worm wheel 108 first makes close contact with the helical surface of the worm 101, forming a mesh. As the worm wheel 108 rotates counterclockwise, the worm 101 moves downward. With the support platform 109 connecting to the heat-conducting plate 113, the multiple scraping brushes 116 move smoothly downward and gradually disengage from the compaction sensor 312, creating a gap between them. This prevents constant scraping of the surface of the compaction sensor 312. When the toothed surface of the right-side worm wheel 108 disengages from the helical surface of the worm 101, the toothed surface of the left-side worm wheel 108 makes close contact with the helical surface of the worm 101, forming a mesh again. At this time, as the worm wheel 108 continues to rotate counterclockwise, the worm 101 receives an upward thrust, which, with the support platform 109 connecting it, drives the scraping brushes... As the brush 116 moves upward, it gradually approaches the outer surface of the compaction sensor 312, achieving complete and tight contact as it continues to move upward. During the continuous rotation of the servo motor 102, the worm gear 101 repeatedly rises and falls, causing the brush 116 to intermittently scrape against the outer surface of the compaction sensor 312. The brushes 116 are distributed in an inclined, interwoven pattern within the inner circumference of the heat-conducting plate 113. This distribution ensures close contact with the outer surface of the compaction sensor 312, while the inclination enhances the scraping force of the brushes 116 on removing impurities from the outer surface of the compaction sensor 312. The multiple brushes 116 are made of aluminum, chosen because aluminum has good thermal conductivity and is lightweight, allowing for both surface impurity removal and heat conduction.

[0027] Furthermore, according to Figure 6 and Figure 10 As shown, the intermittent scraping assembly 1 includes a heat-conducting plate 113, a reinforcing plate 114, and multiple reinforcing ribs 115. The heat-conducting plate 113 and the reinforcing plate 114 are connected by multiple reinforcing ribs 115. The movement of the support platform 109 drives the heat-conducting plate 113 connected to it to move synchronously. The intermittent scraping assembly 1 includes a first resistance wire 117, a heat transfer plate 118, a heat-conducting plate 119, and a second resistance wire 120. The first resistance wire 117 is filled inside the heating frame 110, the heat transfer plate 118 is filled inside the support platform 109, and the heat-conducting plate 120 is filled inside the support platform 109. 19 is filled inside the heat-conducting plate 113, and the second resistance wire 120 is filled inside the scraping brush 116. The intermittent scraping assembly 1 includes a relay 112. The heating frame 110 and the heat-contact frame 111 contact to realize the circuit conduction, which is used to energize the coil of the relay 112, and heat the current through the first resistance wire 117 and the second resistance wire 120. The heat is conducted to the scraping brush 116 through the heat transfer plate 118 and the heat-conducting plate 119, which is used to soften the impurities after condensation and the compaction sensor 312, and accelerate the impurity removal efficiency.

[0028] Multiple reinforcing ribs 115 are interlaced on the outer surface of the heat-conducting plate 113, and the multiple reinforcing ribs 115 are fixed together by reinforcing plates 114 for synchronous displacement of multiple heat-conducting plates 113. A heat-conducting frame 111 is fixedly installed on one side of the support frame 500, and a relay 112 is fixedly installed on the top of the heat-conducting frame 111. A magnet is fixedly installed inside the heat-conducting frame 111. A heat-receiving frame 110 is fixedly installed at the bottom of the support platform 109, and a reed switch is fixedly installed inside the heat-receiving frame 110. A first resistance wire 117 is installed inside the heat-receiving frame 110. A heat transfer plate 118 is fixedly installed inside the support platform 109. A heat-conducting plate 119 is fixedly installed inside the heat-conducting plate 113, and a second resistance wire 120 is fixedly installed inside the scraping brush strip 116. As the worm gear 101 rises, the support platform 109 also drives the heating frame 110 to rise. The heating frame 110 gradually comes into contact with the contact frame 111, that is, the reed switch comes into contact with the magnet. At this time, the reed switch is a gas-tight switch with two metal contacts inside. It mainly relies on the magnetic field to regulate the state. The state is divided into the on and off of the relay 112. When the magnet approaches the reed switch, the metal contacts inside the reed switch will close due to the magnetic force, thereby realizing the circuit. The fixed magnet provides a stable magnetic field for conduction. By adjusting the relative position of the magnet and the reed switch, the switching state of the reed switch can be controlled. The closing action of the reed switch can trigger the relay 112 to turn on or off. Once the reed switch is closed, the coil of the relay 112 will be energized, thereby generating a magnetic field, causing current to flow through the control load. The current flows through the first resistance wire 117, causing the temperature of the first resistance wire 117 to rise, and continuing to transfer heat to the heat transfer plate 118. The heat transfer plate 118 is made of copper, which has good thermal conductivity, and can continue to transfer the received heat to the heat transfer plate 119, which is made of copper alloy. The process involves heat transfer, which smoothly transfers heat to the second resistance wire 120. As the temperature of the second resistance wire 120 increases, the temperature of the scraping brush 116 also increases. When the scraping brush 116 comes into contact with the frosted impurities on the surface of the compaction sensor 312, it transfers heat to the frosted surface. The temperature of the frosted surface rises and begins to approach the melting point of ice. When the temperature reaches the melting point of ice, the ice begins to melt into water, thus achieving the purpose of thawing. The adhesion between the impurities and the surface of the compaction sensor 312 weakens. Combined with the scraping action of the scraping brush 116 against the compaction sensor 312, the speed at which the impurities fall off can be accelerated.

[0029] To address the issue of impurities adhering to the surface of the scraping brush 116 not being cleaned in a timely manner, a passive shaking component 2 is installed to shake the scraping brush 116 back and forth, making it easier for impurities to fall off under the action of centrifugal force.

[0030] Preferably, the specific working process of the passive shaking component 2 is as follows: Figure 7As shown, the passive shaking assembly 2 includes an embedded block 202, a displacement plate 204, an auxiliary strip 205, and an L-shaped block 207. The embedded block 202 is installed inside the support frame 500 and fixed to one side of multiple force-applying wheels 203. The displacement plate 204 is installed on the top of the support platform 109. The auxiliary strip 205 is installed inside the displacement plate 204. The L-shaped block 207 is movably fitted onto one end of the auxiliary strip 205, and one side of the L-shaped block 207 is fixed to one side of the heat-conducting plate 113. Multiple force-applying wheels 201 are fixedly installed on one side of the heat-conducting plate 113. The embedded block 202 is fixedly installed inside the support frame 500, and multiple force-applying wheels 201 are fixedly installed on one side of the embedded block 202. 03. A displacement plate 204 is fixedly installed on the top of the support platform 109. An auxiliary strip 205 is fixedly installed inside the displacement plate 204. An L-shaped block 207 is movably sleeved on one end of the auxiliary strip 205. One side of the L-shaped block 207 is fixedly connected to one side of the heat-conducting plate 113. A spring 206 is wound around the outside of the auxiliary strip 205. One end of the spring 206 is fixedly connected to one side of the L-shaped block 207. When the worm gear 101 moves upward, the support platform 109 drives the heat-conducting plate 113 to move upward continuously. The multiple force-receiving wheels 201 installed on one side will gradually come into contact with the multiple force-applying wheels 203. The spring 206 itself is in the initial state, continuously applying a force to the right to the L-shaped block 207. (Refer to the attached document.) Figure 8 The L-shaped block 207 feeds back the force it receives to the heat-conducting plate 113, which is aligned vertically on the top of the support platform 109. When the heat-conducting plate 113 moves to one side of the embedded block 202, multiple force-applying wheels 203 contact the force-receiving wheel 201, giving the heat-conducting plate 113 a leftward thrust. The L-shaped block 207 moves to the left at one end of the auxiliary strip 205, and the spring 206 is compressed and deformed under force, converting kinetic energy into elastic potential energy, causing the entire heat-conducting plate 113 to move to the left. Since the force-receiving wheel 201 and the force-applying wheel 203 are arc-shaped, they will produce regular fluctuations during the contact process, and the spring 206 will rebound regularly. The compression causes the heat-conducting plate 113 to repeatedly sway left and right. The swaying of the scraping brush 116 generates vibration, which is transmitted to the surface. This vibration can break the adhesion between the impurities on the surface and the substrate, making the adhesion of the impurities unstable. The movement of the scraping brush 116 can provide enough kinetic energy to make the impurities overcome gravity and adhesion, and thus be shaken off. During the swaying process, the scraping brush 116 generates friction, making it easier to clean the impurities. By shaking off the impurities, the working environment and the surface of the equipment can be kept clean, reducing the impact of impurities on the performance of the equipment.

[0031] It should be noted that the internal structural surfaces of the compaction roller 300 are all coated with polyurethane coating, which has wear resistance and weather resistance.

[0032] Furthermore, according to Figure 8 and Figure 9 As shown, multiple force-receiving wheels 201 gradually press and contact with multiple force-applying wheels 203 as the heat-conducting disk 113 rises. Under the action of force, the heat-conducting disk 113 moves to one side. The passive shaking component 2 includes a spring 206. One end of the spring 206 is fixed to one side of the L-shaped block 207. Under the elastic action of the spring 206, the heat-conducting disk 113 is driven to move left and right repeatedly, so as to shake off the impurities attached to its surface during the left and right movement of multiple scraping brushes 116.

[0033] A monitoring method for a real-time compaction degree monitoring device during highway pavement construction includes the following steps: S1: Start the monitoring system: Ensure that the compaction sensor 312 is in normal working condition, and remotely start the monitoring vehicle 100 via remote control to facilitate compaction monitoring at different monitoring locations; S2: Data recording: The monitoring system transmits the collected compaction data to the central processing unit in real time via wireless means; S3: Information feedback: The system can display compaction data in real time and provide alarms. If the compaction is found to be substandard, it will promptly provide feedback to the construction personnel. S4: Heating to eliminate adhesion: By starting the servo motor 102, the two second gears 107 are meshed with the first gear 105, which drives the two worm gears 108 to rotate synchronously, thereby driving the worm 101 to move up and down intermittently, and then causing multiple scraping brushes 116 to be embedded in the monitoring groove 311 and scrape the outer surface of the compaction sensor 312.

[0034] S5: The rising of the heated frame 110 and its contact with the heated frame 111 enable power supply. The heat is then conducted to the compaction sensor 312 and the surface of the impurities by the scraping brush 116, melting the frost formed on their surface and thus reducing the adhesion of the impurities.

[0035] Working Principle: Real-time monitoring of compaction degree is crucial for ensuring pavement quality and construction safety during highway construction. Compaction degree monitoring devices help engineers obtain relevant compaction data in a timely manner, enabling necessary adjustments and improvements. The monitoring device includes a mechanical compaction degree detector, which directly measures the compaction degree at the construction site through sensors. It is simple to operate and suitable for rapid on-site testing, ensuring that the compaction degree of pavement materials meets design standards and preventing pavement settlement and cracking caused by improper compaction. By setting reasonable thresholds, the system will automatically alarm when the compaction degree does not meet the standards, prompting construction personnel to take corrective measures. Regular calibration and maintenance of the equipment are necessary to ensure accurate measurements. To ensure accuracy and normal operation of equipment, real-time monitoring devices detect road surface conditions through compaction sensors, saving manpower and time and improving project progress. However, patent CN120559213A discloses a real-time compaction monitoring device and method during asphalt pavement construction, which mainly uses a cleaning frame to clean impurities from the compaction sensor. However, in cold environments, impurities and the outer surface of the compaction sensor will condense, resulting in a strong bond between them. The solidified impurities are difficult to remove by the cleaning frame, and the accumulation of impurities affects the sensor's performance. Furthermore, some impurities remain on the surface after the cleaning frame removes them; if not cleaned promptly initially, they will accumulate further. As time is delayed, the adhesion of impurities increases, increasing the labor intensity of subsequent cleaning. Accumulated impurities also reduce the cleaning precision of the cleaning rack. Before use, the sensor must be accurately calibrated to ensure the accuracy of its monitoring data. The monitoring vehicle 100 is moved to the designated monitoring point via remote control, ensuring that the compaction sensor 312 is in close contact with the road surface being tested. The static compaction sensor measures the compaction degree of soil and road surface by applying a certain static pressure. During the compaction process of the compaction roller 300 rolling the road surface, the compaction sensor 312 can use the applied pressure and the information fed back by the compaction sensor 312 to assess the density of the material. The system is activated via remote control. The monitoring device activates the compaction sensor 312, enabling it to collect data in real time. The monitoring vehicle 100 records compaction data, including compaction degree, temperature, and humidity parameters, generating a data trend chart. The monitoring interface displays the current monitoring data in real time, allowing construction personnel to understand the compaction situation promptly. Based on the monitored compaction data, the construction team can adjust construction methods and equipment in a timely manner to ensure that the compaction meets design standards. During construction, the monitoring vehicle 100 is regularly inspected and maintained to ensure its normal operation and prevent equipment malfunctions from affecting the monitoring results. The servo motor 102 is activated, driving the first gear 105, which is connected to its output shaft, to rotate. Figure 5 and Figure 6When the first gear 105 rotates counterclockwise, it drives the second gear 107 meshing with it on both sides to rotate clockwise, which in turn drives the two support plates 106 to rotate clockwise on one side of the U-shaped frame 600. Simultaneously, the two worm gears 108 rotate clockwise, causing the worm 101 meshing with it in the middle to move upwards. Since the support platform 109 is connected to multiple scraping brushes 116 via a heat-conducting plate 113, and one end of the worm 101 is fixed to the bottom of the support platform 109, when the worm 101 moves upwards, the support platform 109 also drives the multiple scraping brushes 116 to move upwards. The multiple scraping brushes 116 gradually approach the corresponding compaction sensor 312, and the two come into contact. Under the scraping of the surface of the compaction sensor 312 by the scraping brushes 116, impurities can be removed. The reinforcing plate 104 moves with the movement of the worm 101, and the reinforcing plate 104 moves at one end of the reinforcing rod 103. The low friction between the two gears improves their smooth movement. The two worm gears 108 have the same number of teeth and identical structure. The worm 101 is located in the middle of the two worm gears 108, and its two sides are meshed with the two worm gears 108 respectively. The worm 101 remains vertical as the reinforcing plate 104 moves, ensuring the scraping brush 116 is perfectly centered and wraps around the compaction sensor 312. This enhances the accuracy of the fit between the scraping brush 116 and the outer surface of the compaction sensor 312. The meshing of the first gear 105 with the two second gears 107 drives the two worm gears 108 to mesh with the worm 101, thus raising and lowering the scraping brush 116. This improves the accuracy of gear transmission and prevents the worm 101 from seizing. When the first gear 105 rotates clockwise, it drives the two meshed second gears 107 to rotate counterclockwise, which in turn drives the two worm gears 108 to rotate counterclockwise. (See attached diagram.) Figure 9The toothed surface of the right worm wheel 108 first makes close contact with the helical surface of the worm 101, forming a mesh. As the worm wheel 108 rotates counterclockwise, the worm 101 moves downward. With the support platform 109 connected to the heat-conducting plate 113, multiple scraping brushes 116 move smoothly downward and gradually disengage from the compaction sensor 312, creating a gap between them. This prevents constant scraping of the surface of the compaction sensor 312. When the toothed surface of the right worm wheel 108 disengages from the helical surface of the worm 101, the toothed surface of the left worm wheel 108 makes close contact with the helical surface of the worm 101, forming a mesh again. At this time, as the worm wheel 108 continues to rotate counterclockwise, the worm 101 receives an upward thrust, which is also achieved by the support platform 109 connecting the heat-conducting plate 113. Next, the scraping brush 116 moves upward, gradually approaching the outer surface of the compaction sensor 312. As it continues to move upward, it achieves complete and tight contact. During the continuous rotation of the servo motor 102, the worm gear 101 repeatedly rises and falls, causing the scraping brush 116 to intermittently scrape against the outer surface of the compaction sensor 312. The scraping brushes 116 are obliquely interwoven and distributed within the inner circumference of the heat-conducting plate 113. This distribution ensures close contact with the outer surface of the compaction sensor 312, and the oblique angle enhances the scraping force of the scraping brushes 116 on the outer surface of the compaction sensor 312. The multiple scraping brushes 116 are made of aluminum, chosen because aluminum has good thermal conductivity and is lightweight, allowing for effective removal of impurities. Besides removing surface impurities, it also achieves heat conduction. The heated frame 110 gradually comes into contact with the heated contact frame 111, that is, the reed switch comes into contact with the magnet. At this time, the reed switch is a gas-tight switch with two metal contacts inside. It mainly relies on the magnetic field to regulate its state, which is divided into the on and off states of the relay 112. When the magnet approaches the reed switch, the metal contacts inside the reed switch will close due to the magnetic force, thereby realizing the conduction of the circuit. The fixed magnet provides a stable magnetic field. By adjusting the relative position of the magnet and the reed switch, the switching state of the reed switch can be controlled. The closing action of the reed switch can trigger the relay 112 to be on or off. Once the reed switch is closed, the coil of the relay 112 will be energized, thereby generating a magnetic field, causing the current to flow. By controlling the load, current flows through the first resistance wire 117, raising its temperature and transferring heat to the heat transfer plate 118. The heat transfer plate 118, made of copper with good thermal conductivity, transfers the received heat to the heat conduction plate 119, made of copper alloy. This heat transfer smoothly transfers heat to the second resistance wire 120. As the temperature of the second resistance wire 120 rises, the temperature of the scraping brush 116 also increases. When the scraping brush 116 comes into contact with the frosted impurities on the surface of the compaction sensor 312, it transfers heat to the frosted surface, raising its temperature and approaching the melting point of ice. When the temperature reaches the melting point, the ice begins to melt into water, thus achieving the purpose of thawing.The adhesion between impurities and the surface of the compaction sensor 312 weakens. Combined with the scraping action of the scraping brush 116 against the compaction sensor 312, the speed at which impurities fall off is accelerated. As the worm gear 101 moves upward, the support platform 109 drives the heat-conducting plate 113 to move continuously upward. Multiple force-receiving wheels 201 mounted on one side gradually come into contact with multiple force-applying wheels 203. The spring 206 remains in its initial state, continuously applying a force to the right to the L-shaped block 207. (See attached diagram.) Figure 8 The L-shaped block 207 feeds back the force it receives to the heat-conducting plate 113, which is aligned vertically on the top of the support platform 109. When the heat-conducting plate 113 moves to one side of the embedded block 202, multiple force-applying wheels 203 contact the force-receiving wheel 201, giving the heat-conducting plate 113 a leftward thrust. The L-shaped block 207 moves to the left at one end of the auxiliary strip 205, and the spring 206 is compressed and deformed under force, converting kinetic energy into elastic potential energy, causing the entire heat-conducting plate 113 to move to the left. Since the force-receiving wheel 201 and the force-applying wheel 203 are arc-shaped, they will produce regular fluctuations during the contact process, and the spring 206 will rebound regularly. The compression causes the heat-conducting plate 113 to repeatedly sway left and right. The swaying of the scraping brush 116 generates vibration, which is transmitted to the surface. This vibration can break the adhesion between the impurities on the surface and the substrate, making the adhesion of the impurities unstable. The movement of the scraping brush 116 can provide enough kinetic energy to make the impurities overcome gravity and adhesion, and thus be shaken off. During the swaying process, the scraping brush 116 generates friction, making it easier to clean the impurities. By shaking off the impurities, the working environment and the surface of the equipment can be kept clean, reducing the impact of impurities on the performance of the equipment.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for real-time monitoring of compaction degree during highway pavement construction, characterized in that, include: Monitoring vehicle (100); The compaction frame (200), compaction roller (300) and monitoring groove (311) are provided. The monitoring groove (311) is equipped with a compaction sensor (312) for real-time monitoring of the compaction degree of the road surface through the contact between the compaction sensor (312) and the road surface. An intermittent scraping assembly (1) is disposed inside the compaction roller (300). The intermittent scraping assembly (1) includes a worm gear (101), a support platform (109), and multiple scraping brushes (116). With the support platform (109) connected, the worm gear (101) moves up and down, causing the multiple scraping brushes (116) to intermittently rub against the compaction sensor (312), thus avoiding damage caused by continuous scraping between the scraping brushes (116) and the compaction sensor (312). The intermittent scraping assembly (1) includes a heating frame (111), which is equipped with a magnet inside. The reed switch contacts the magnet to make the circuit connected and heats multiple scraping brushes (116) to reduce the adhesion of impurities. A passive shaking assembly (2) is installed inside the intermittent scraping assembly (1). The passive shaking assembly (2) includes a force-receiving wheel (201) and a force-applying wheel (203). The force-receiving wheel (201) and the force-applying wheel (203) touch each other, causing the scraping brush (116) to shake repeatedly, so as to shake off the impurities attached to the surface in a timely manner.

2. The real-time compaction monitoring device during highway pavement construction according to claim 1, characterized in that: The compaction roller (300) is symmetrically equipped with two positioning discs (400), and a support frame (500) is installed between them to support the intermittent scraping component (1) and the passive shaking component (2). A U-shaped frame (600) is installed on one side of the support frame (500) to support the servo motor (102).

3. The real-time compaction monitoring device during highway pavement construction according to claim 1, characterized in that: The intermittent scraping assembly (1) includes two support plates (106), one end of which is inserted and connected to one side of the U-shaped frame (600) to accommodate two second gears (107) for smooth circumferential rotation. The two worm gears (108) rotate in the same direction to move the worm (101) up and down, thereby adjusting the contact area between the scraping brush (116) and the compaction sensor (312).

4. The real-time compaction monitoring device during highway pavement construction according to claim 3, characterized in that: The intermittent scraping assembly (1) includes a reinforcing rod (103) and a reinforcing plate (104). The reinforcing plate (104) is installed at one end of the worm (101). The movement of the worm (101) causes the reinforcing plate (104) to move at one end of the reinforcing rod (103), thereby enhancing the stability of the displacement of the intermittent scraping assembly (1).

5. The real-time compaction monitoring device during highway pavement construction according to claim 4, characterized in that: The intermittent scraping assembly (1) includes a heat-conducting plate (113), a reinforcing plate (114), and multiple reinforcing ribs (115). The heat-conducting plate (113) and the reinforcing plate (114) are connected by multiple reinforcing ribs (115). The movement of the support platform (109) drives the heat-conducting plate (113) connected to it to move synchronously.

6. The real-time compaction monitoring device during highway pavement construction according to claim 1, characterized in that: The intermittent scraping assembly (1) includes a first resistance wire (117), a heat transfer plate (118), a heat conduction plate (119), and a second resistance wire (120). The first resistance wire (117) is filled inside the heating frame (110), the heat transfer plate (118) is filled inside the support platform (109), the heat conduction plate (119) is filled inside the heat conduction disk (113), and the second resistance wire (120) is filled inside the scraping brush strip (116). Except for the component (1) which includes a relay (112), the contact between the heating frame (110) and the heat-contact frame (111) enables the circuit to be turned on, which is used to energize the coil of the relay (112), and the current is heated through the first resistance wire (117) and the second resistance wire (120). The heat is then conducted to the scraping brush (116) through the heat transfer plate (118) and the heat conduction plate (119), which is used to soften the condensed impurities and the compaction sensor (312) and accelerate the impurity removal efficiency.

7. The real-time compaction monitoring device during highway pavement construction according to claim 1, characterized in that: The passive shaking assembly (2) includes an embedded block (202), a displacement plate (204), an auxiliary strip (205), and an L-shaped block (207). The embedded block (202) is installed inside the support frame (500) and fixed to one side of a plurality of force-applying wheels (203). The displacement plate (204) is installed on the top of the support platform (109). The auxiliary strip (205) is installed inside the displacement plate (204). The L-shaped block (207) is movably sleeved on one end of the auxiliary strip (205), and one side of the L-shaped block (207) is fixed to one side of the heat-conducting plate (113).

8. The real-time compaction monitoring device during highway pavement construction according to claim 7, characterized in that: As the heat-conducting disk (113) rises, the multiple force-receiving wheels (201) gradually press against and contact the multiple force-applying wheels (203), causing the heat-conducting disk (113) to move to one side under the action of force.

9. The real-time compaction monitoring device during highway pavement construction according to claim 8, characterized in that: The passive shaking component (2) includes a spring (206), one end of which is fixed to one side of the L-shaped block (207). Under the elastic action of the spring (206), the heat-conducting plate (113) is driven to move left and right repeatedly, so as to shake off the impurities attached to the surface of the multiple scraping brushes (116) during the left and right movement.

10. A monitoring method for a real-time compaction monitoring device during highway pavement construction, the method being applicable to the real-time compaction monitoring device for highway pavement construction as described in claims 1-9, characterized in that: Includes the following steps: S1: Start the monitoring system: Ensure that the compaction sensor (312) is in normal working condition, and remotely start the monitoring vehicle (100) via remote control to facilitate compaction monitoring at different monitoring locations; S2: Data recording: The monitoring system transmits the collected compaction data to the central processing unit in real time via wireless means; S3: Information feedback: The system can display compaction data in real time and provide alarms. If the compaction is found to be substandard, it will promptly provide feedback to the construction personnel. S4: Heating to eliminate adhesion: By starting the servo motor (102), the two worm gears (108) are driven to rotate synchronously under the meshing connection of the two second gears (107) and the first gear (105), which can drive the worm (101) to move up and down intermittently, and then make multiple scraping brushes (116) embed into the inside of the monitoring groove (311) and scrape the outer surface of the compaction sensor (312); S5: The rising of the heated frame (110) and contact with the heated frame (111) enables power supply. Heat is conducted to the compaction sensor (312) and the surface of the impurities by scraping the brush strip (116), melting the frost formed on the surface of the impurities to reduce the adhesion of the impurities.

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