Pavement compaction temperature detection device

Abstract

The utility model relates to the technical field of intelligent pavement compaction construction, in particular to a pavement compaction temperature detection device, which comprises a main body bracket, a magnetic attraction seat and an infrared temperature sensor array, the main body bracket is adsorbed and fixed at the bottom of a front frame of the road roller through the magnetic adsorption seat; the infrared temperature sensor array is fixedly mounted on the main body bracket; the main body support comprises a main body support I, a main body support II and a main body support III, the main body support I and the main body support III are the same in structure and are symmetrically arranged on the two sides of the main body support II, and the main body support I, the main body support II and the main body support III are connected through end sockets of hollow structures; after the insertion openings are connected, bolts penetrate through the strip-shaped through grooves I to fixedly connect the main body supports. The infrared temperature sensors are installed at the bottom of the frame of the road roller in an array mode, whole-course real-time detection is carried out on the compaction temperature of the asphalt mixture from different visual angles, manual participation is not needed, decision guidance is provided for compaction operation, and meanwhile the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent pavement compaction construction, in particular to a pavement compaction temperature detection device. Background Art

[0002] In the process of intelligent compaction of asphalt pavement, in order to ensure the compaction quality of asphalt pavement, the technical indicators of the current compacted asphalt mixture must meet the compaction requirements. Asphalt mixture is a temperature-sensitive material, and temperature changes will inevitably cause changes in the compaction characteristics of the mixture. Therefore, among the factors that affect the compaction effect of asphalt pavement, asphalt mixture temperature is one of the key detection indicators.

[0003] As pavement compaction technology continues to develop in the direction of intelligence, the insertion detection method of traditional temperature detection equipment is obviously unable to match the efficient and intelligent compaction technology. The insertion temperature detection method has the disadvantages of low efficiency, limited detection points and inability to be implemented continuously. In comparison, non-contact infrared temperature measurement technology not only has obvious advantages, but also can achieve good compatibility with intelligent compaction technology in a real-time and accurate continuous detection method. As a specific application of infrared temperature measurement technology, infrared temperature sensor has the advantages of fast temperature measurement speed, non-contact and real-time temperature detection, so its application range is wider. The compaction machinery brands and models used in current pavement compaction operations are different. Most compaction machinery does not provide a suitable installation location and environment for the installation of temperature sensors due to the gradual intelligence of compaction technology, and even does not make clear technical requirements for temperature sensors during application. In engineering and scientific research practice, the installation and use of temperature sensors mostly only meet the needs of practical activities. In specific applications, the temperature sensor is installed on the compacting machine by using a simple bracket that comes with the product and an additional magnetic seat. This installation method is limited in the number of installation points and the installation position is not uniform, so it cannot form a comparative analysis of array detection. If conditions permit, it will be more convenient and quick to use the inherent bolts of some compacting machinery to fix the connection, but this situation has certain requirements for the roller itself.

[0004] In summary, based on the existing compaction machinery and compaction conditions, in order to meet the real-time detection of compaction temperature and achieve the goal of high-quality compaction of the road surface, it is necessary to study the installation method of the infrared temperature sensor array. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a road compaction temperature detection device, which installs infrared temperature sensors in the form of an array at the bottom of the roller frame, and performs real-time detection of the compaction temperature of the asphalt mixture from different viewing angles without human intervention.

[0006] The specific technical solution is as follows:

[0007] A pavement compaction temperature detection device includes a main body bracket, a magnetic suction seat, and an infrared temperature sensor array; the main body bracket is adsorbed and fixed to the bottom of the front frame of the roller through the magnetic suction seat; the infrared temperature sensor is fixedly installed on the main body bracket.

[0008] The main body bracket adopts a hollow structure and includes a main body bracket Ⅰ, a main body bracket Ⅱ, and a main body bracket Ⅲ. The main body bracket Ⅰ and the main body bracket Ⅲ have the same structure and are symmetrically arranged on both sides of the main body bracket Ⅱ. The main body bracket Ⅰ, the main body bracket Ⅱ, and the main body bracket Ⅲ are connected through the end sockets of the hollow structure;

[0009] The end socket of the hollow structure of the main body bracket Ⅱ is larger than the end sockets of the hollow structures of the main body bracket Ⅰ and the main body bracket Ⅲ, so that the end sockets of the hollow structures of the main body bracket Ⅰ and the main body bracket Ⅲ can just be inserted into the end socket of the hollow structure of the main body bracket Ⅱ;

[0010] The infrared temperature sensor array includes a number of infrared temperature sensors Ⅰ detachably installed on the main body bracket Ⅰ, a number of infrared temperature sensors Ⅱ detachably installed on the main body bracket Ⅱ, and a number of infrared temperature sensors Ⅲ detachably installed on the main body bracket Ⅲ; the number and position of the infrared temperature sensor array are determined according to the detection requirements;

[0011] The magnetic suction seat includes a magnetic suction seat Ⅰ and a magnetic suction seat Ⅲ, which are respectively detachably installed on the main body bracket Ⅰ and the main body bracket Ⅲ.

[0012] The main body bracket Ⅰ includes a connecting rod and a first mounting bracket; the connecting rod is fixedly arranged on the upper end surface of the first mounting bracket away from the end socket of the hollow structure, and the magnetic suction seat Ⅰ is fixedly connected to the inner side of the connecting rod through bolts; a number of sensor mounting brackets Ⅰ for installing the infrared temperature sensor Ⅰ are fixedly connected to the lower end surface of the first mounting bracket.

[0013] The sensor mounting bracket Ⅰ is welded to the lower end of the first mounting bracket in a U-shaped groove structure. The infrared temperature sensor Ⅰ with a thread is placed into the U-shaped groove of the sensor mounting bracket Ⅰ and fixed by an upper fixing nut Ⅰ and a lower fixing nut Ⅰ to adjust the vertical height of the infrared temperature sensor.

[0014] A strip-shaped through groove Ⅰ for fixedly connecting the main body bracket Ⅱ is opened on the first mounting bracket on the side close to the end socket of the hollow structure.

[0015] An opening is provided at the middle connection end between the sensor mounting bracket Ⅰ and the first mounting bracket, and the sensor data line Ⅰ of the infrared temperature sensor Ⅰ extends outwards through the opening into the hollow structure.

[0016] A number of bolt holes are symmetrically arranged at both ends of the main body bracket II corresponding to the direction of the strip-shaped through groove I. Bolts pass through the bolt holes and the strip-shaped through groove I to connect with the main body bracket I. By adjusting the relative positions of the bolt holes and the strip-shaped through groove I, different lengths of the main body bracket can be obtained.

[0017] A number of sensor mounting brackets II for installing the infrared temperature sensor II are fixedly connected to the bottom end of the main body bracket II; the sensor mounting bracket II is welded below the main body bracket II in a U-shaped groove structure. The infrared temperature sensor II with threads is inserted into the U-shaped groove of the mounting bracket II and fixed by the upper fixing nut II and the lower fixing nut II to adjust the vertical height of the infrared temperature sensor.

[0018] An opening is provided at the middle connection end between the sensor mounting bracket II and the main body bracket II. The sensor data line II of the infrared temperature sensor II extends outward through the opening into the hollow structure.

[0019] The connection method between the main body bracket III and the main body bracket II is the same as the connection method between the main body bracket I structure and the main body bracket II; the connection methods of the magnetic suction seat III and the infrared temperature sensor III with the main body bracket III are also the same as those of the main body bracket I; a data line wiring port is provided on the first mounting bracket of the main body bracket I close to the connecting rod; the data line wiring port can also be set at the corresponding position of the main body bracket III.

[0020] The beneficial effects of the utility model are as follows:

[0021] 1. The infrared temperature sensors are installed at different parts of the main body bracket in an array form, and then the temperature detection device is integrally installed on the roller. This installation method can perform real-time detection of the compaction temperature of asphalt mixture from different longitudinal and transverse perspectives of the compacted road surface without manual participation. The temperatures of the road surface at the bottom and both sides of the roller are detected simultaneously and compared and analyzed, and the results are more persuasive. At the same time, it provides decision-making guidance for the compaction operation and further improves the compaction quality and operation efficiency.

[0022] 2. The main body bracket of the temperature detection device adopts a telescopic structure form to adapt to different brands and models of compaction equipment, and the application range is wider; the installation method of magnetic suction adsorption makes the installation and disassembly of the device not only flexible and convenient but also friendly to the installation equipment; by setting the connecting rod, the position of the magnetic suction seat can be appropriately raised to prevent the magnetic suction seat from being affected by the high-temperature environment formed at the bottom of the vehicle frame for a long time.

[0023] 3. The main body bracket of the detection device designed with a hollow structure not only reduces its own weight but also effectively manages and protects the temperature sensor data lines passing through it in the high-temperature and complex operation environment; both the reasonable manufacture of the device and the protection of the instrument equipment save construction costs. Description of the Drawings

[0024] Figure 1 Schematic diagram of the installation position of the present utility model;

[0025] Figure 2 Schematic diagram of the overall structure of a pavement compaction temperature detection device of the present utility model;

[0026] Figure 3 Schematic diagram of the structure of the main support I 10 of a pavement compaction temperature detection device of the present utility model;

[0027] Figure 4 Schematic diagram of the structure of the main support II 20 of a pavement compaction temperature detection device of the present utility model;

[0028] Figure 5 Front view schematic diagram of the main support III 30 of a pavement compaction temperature detection device of the present utility model;

[0029] Figure 6 Back view schematic diagram of the main support I 10 of a pavement compaction temperature detection device of the present utility model;

[0030] Figure 7 Magnified schematic diagram of the U-shaped groove of a pavement compaction temperature detection device of the present utility model;

[0031] Wherein, 1, road roller; 2, bottom of the front frame; 10, main support I; 11, connecting rod; 12, sensor mounting bracket I; 13, magnetic suction seat I; 14, sensor data line I; 15, upper fixing nut I; 16, lower fixing nut I; 17, infrared temperature sensor I; 18, strip-shaped through groove I; 19, hollow structure; 20, main support II; 21, bolt hole; 22, bolt; 24, sensor mounting bracket II; 25, sensor data line II; 26, upper fixing nut II; 27, lower fixing nut II; 28, infrared temperature sensor II; 30, main support III; 33, magnetic suction seat III; 35, sensor data line III; 38, infrared temperature sensor III; 39, data line wiring port. Detailed implementation manners

[0032] In order to better explain the present utility model for easy understanding, the technical solutions and effects of the present utility model will be described in detail below with reference to the accompanying drawings through specific implementation manners.

[0033] As Figure 1-7 shown, to meet the requirements of real-time detection and judgment of temperature during pavement compaction, this embodiment discloses a pavement compaction temperature detection device, including a main support, a magnetic suction seat, and an infrared temperature sensor array; the main support is horizontally fixed to the bottom 2 of the front frame of the road roller 1 by adsorption of the magnetic suction seat; the infrared temperature sensor array is fixedly installed on the main support.

[0034] Specifically, asFigure 2 , 3 As shown in 3 , the main body support includes main body support I 10, main body support II 20, and main body support III 30, all of which adopt a hollow structure 19. While reducing the self-weight, it is convenient for the management and protection of the sensor data lines. The overall structure of the main body support adopts a rigid connection form to ensure the overall stability of the device at a complex construction site.

[0035] The structures of main body support I 10 and main body support III 30 are the same and are symmetrically arranged on both sides of main body support II 20. Main body support I 10, main body support II 20, and main body support III 30 are connected through the end sockets of the hollow structure; the end socket of the hollow structure 19 of main body support II 20 is larger than the end sockets of the hollow structures 19 of main body support I 10 and main body support III 30, so that the end sockets of the hollow structures 19 of main body support I 10 and main body support III 30 can just be inserted into the end socket of the hollow structure 19 of main body support II 20; the setting of the hollow structure 19 facilitates the adjustment of the position and distance during the connection process. The number and position of the infrared temperature sensor arrays are determined according to the detection requirements. It includes a number of infrared temperature sensors I 17 installed on main body support I 10, a number of infrared temperature sensors II 28 installed on main body support II 20, and a number of infrared temperature sensors III 38 installed on main body support III 30; in this embodiment, infrared temperature sensors I 17, infrared temperature sensors II 28, and infrared temperature sensors III 38 are each a group; the magnetic suction seats include magnetic suction seat I 13 and magnetic suction seat III 33, which are respectively installed on main body support I 10 and main body support III 30.

[0036] As Figure 3 shown, main body support I 10 includes a connecting rod 11 and a first mounting bracket; the connecting rod 11 is fixedly arranged on the upper end surface of the first mounting bracket far from the end socket of the hollow structure 19, and a magnetic suction seat I 13 is fixedly connected to the inner side of the connecting rod 11 by bolts; the magnetic suction seat I 13 is installed on the connecting rod 11 of main body support I 10 in a manner fixed by bolts and nuts. Main body support I 10 realizes effective connection with the bottom 2 of the front frame of the roller 1 with the connecting rod 11 as the bridge and the adsorption of the magnetic suction seat I 13.

[0037] Affected by the watering of the roller 1, the temperature changes of the steel wheel compacting the asphalt mixture and the asphalt mixtures on both sides are inconsistent. To detect the temperature of the mixtures on both sides of the steel wheel of the roller 1, the installation positions of the infrared temperature sensors on both sides of the device should be suspended outside the steel wheel. In this embodiment, the lower end surface of the first mounting bracket close to the connecting rod 11 is fixedly connected with a sensor mounting bracket Ⅰ12 for mounting the infrared temperature sensor Ⅰ17. The purpose of setting the connecting rod 11 is to prevent the magnetic suction seat Ⅰ13 from being affected by the high-temperature environment formed over a long time if it is adsorbed on the vehicle bottom, which may affect its adsorption performance. The magnetic suction seat Ⅰ13 is adsorbed and installed on both sides of the vehicle frame, which can avoid the influence of high temperature and make it more intuitive to view the working state of the detection device at a complex operation site without checking whether it is scratched, damaged or even fallen off through the vehicle bottom.

[0038] As Figure 7 shown, in this embodiment, the sensor mounting bracket Ⅰ12 adopts a U-shaped groove structure and is welded to the lower end of the first mounting bracket in a rigid connection manner. The threaded infrared temperature sensor Ⅰ17 is placed into the U-shaped groove of the sensor mounting bracket Ⅰ12 and fixed by the upper fixing nut Ⅰ15 and the lower fixing nut Ⅰ16. Adjusting the vertical height of the infrared temperature sensor has a certain degree of flexibility, and its connection method can prevent the infrared temperature sensor from being skewed or even damaged and fallen off due to scratching at a complex construction site. There is an opening at the middle connection end between the sensor mounting bracket Ⅰ12 and the first mounting bracket. After the infrared temperature sensor Ⅰ17 is installed, the sensor data line Ⅰ14 of the infrared temperature sensor Ⅰ17 enters the hollow structure 19 through the opening and extends outward. A strip-shaped through groove Ⅰ18 for fixedly connecting the main body bracket Ⅱ20 is opened on the first mounting bracket close to the socket end of the hollow structure 19, and the main body bracket Ⅱ20 is fixedly connected through the strip-shaped through groove Ⅰ18.

[0039] As Figure 4 shown, in this embodiment, there are 4 bolt holes 21 symmetrically arranged at both ends of the main body bracket Ⅱ20 corresponding to the direction of the strip-shaped through groove Ⅰ18. The bolts 22 pass through the suitable bolt holes 21 and the strip-shaped through groove Ⅰ18 and are fixed to the main body bracket Ⅰ10 to realize the overall connection between the main body brackets. According to different requirements, by adjusting the relative positions of the bolt holes 21 and the strip-shaped through groove Ⅰ18, different lengths of the main body brackets can be obtained.

[0040] At the middle position of the bottom end of the main body support II 20, there is a sensor mounting bracket II 24 fixedly connected for mounting the infrared temperature sensor II 28; the sensor mounting bracket II 24 is welded below the main body support II 20 in a U-shaped groove structure, and the infrared temperature sensor II 28 with threads penetrates into the U-shaped groove of the mounting bracket II and is fixed by the upper fixing nut II 26 and the lower fixing nut II 27 to adjust the vertical height of the infrared temperature sensor. There is an opening at the middle connection end between the sensor mounting bracket II 24 and the main body support II 20. After the infrared temperature sensor II 28 is installed, the sensor data line II 25 of the infrared temperature sensor II 28 extends outward through the opening into the hollow structure 19.

[0041] As Figure 5 shown, the structure of the main body support III 30 and its connection method with the main body support I 10 are the same as those with the main body support II 20; the connection method of the magnetic suction seat III 33 and the infrared temperature sensor III 38 with the main body support III 30 is also the same as that with the main body support I 10. As Figure 6 shown, in this embodiment, on the side of the first mounting bracket on one side of the connecting rod 11 on the main body support I 10, there is a data line wiring port 39. After the infrared temperature sensor III 38 is installed, the sensor data line III 35 of the infrared temperature sensor III 38 extends outward through the opening of the main body support III 30 into the hollow structure 19. After the sensor data line I 14, the sensor data line II 25, and the sensor data line III 35 are routed and sorted inside the main body support, they all pass through the data line wiring port 39 and extend to be connected to the existing temperature acquisition device; the data line wiring port 39 can also be set at the corresponding position on the main body support III 30.

[0042] In this embodiment, according to the working characteristics of the roller 1, the infrared temperature sensor array installed in the road surface compaction temperature detection device includes three groups of temperature sensors, which can meet the temperature detection requirements at different positions with the most basic assembly structure and conduct comparative analysis on the detected data. When necessary, the number of the temperature sensor array can be increased according to the actual situation to meet the detection requirements of more temperature data. Based on the special structure of the compaction machinery and the special nature of the round-trip walking operation, considering the balanced influence of the sprinkling factors of the front and rear wheels, the basic position for installing the temperature sensor array is determined, that is, it is more beneficial to the road surface temperature detection and comparative analysis to install the temperature sensor array at the bottom of the front frame 2 of the compaction machinery. Affected by the dump truck and the paver, the temperature change of the asphalt mixture paved transversely on the road surface is not uniform. Generally, the asphalt mixture with a lower temperature after paving is distributed on both sides of the road, while the asphalt mixture with a higher temperature tends to be more towards the center of the road. Coupled with the influence of the sprinkling device, it is necessary to install an infrared temperature sensor array transversely on the compaction machinery to detect and compare the temperature at different positions, which indirectly determines the number of infrared temperature sensors to be installed. By adding a U-shaped groove structure on the main body support, the number of temperature sensors can be increased to meet different measurement requirements.

[0043] The implementation plan of this embodiment is as follows:

[0044] According to the temperature measurement principle of the infrared temperature sensor and the installation and use environment of the road surface compaction temperature detection device, the main bracket I 10, the main bracket II 20, and the main bracket III 30 are assembled respectively. After forming the whole device, it is fixedly installed on the side of the symmetric position at the bottom of the front frame of the roller 1 in a magnetic adsorption manner. When the installation of the entire temperature detection device is completed, it can assist the compaction operation to make a real-time and accurate judgment on whether the temperature change of the current asphalt mixture meets the compaction conditions.

[0045] The specific implementation steps refer to Figure 1 、 Figure 2 and are described as follows:

[0046] Step 1: Install the magnetic adsorption seats on the inner sides of the connecting rods 11 of the main bracket I 10 and the main bracket III 30 respectively in a bolt-fixed manner. Make the positions between the magnetic adsorption seat I 13 and the magnetic adsorption seat III 33 symmetrical.

[0047] Step 2: Insert the infrared temperature sensor I 17, the infrared temperature sensor II 28, and the infrared temperature sensor III 38 into the sensor installation brackets of their respective main brackets I 10, main bracket II 20, and main bracket III 30 from top to bottom; at the same time, fix them with fixing nuts on both the upper and lower sides of the sensor fixing bracket and ensure that the infrared temperature sensors are stable and without looseness. After the installation of the infrared temperature sensors is completed, pass the sensor data cables through the holes at the bottom end of the main brackets into their hollow structures 19 and extend them in the direction of the data cable outlets for standby.

[0048] Step 3: The required temperature detection device needs to be installed under the front frame of the roller 1 to accurately collect the current road surface compaction temperature change information. To this end, the vertical distance between the two side surfaces at the symmetric fixed positions at the bottom end of the front frame needs to be accurately measured before installing the temperature detection device. The main body bracket I 10 and the main body bracket III 30 are respectively inserted into the main body bracket II 20 from the corresponding ends of the strip-shaped through groove I 18, so that the two magnetic seat and the temperature sensor array are respectively located on both sides of the main body bracket. According to the vertical distance between the two side surfaces of the front frame of the roller 1, the positions of the main body bracket I 10, the main body bracket II 20, and the main body bracket III 30 are adjusted, that is, the symmetric position is adjusted through the strip-shaped through groove I 18 of the main body bracket I 10 and the main body bracket III 30 and the end slot of the hollow structure 19 of the main body bracket II 20. After the distance between the magnetic seat I 13 and the magnetic seat III 33 matches the distance between the two side surfaces of the frame, the bolts 22 are fixed, and finally the main body bracket forms a stable road surface compaction temperature detection device. During the connection of the main body brackets, the sensor data line I 14, the sensor data line II 25, and the sensor data line III 35 are respectively sorted out uniformly after passing through the main body bracket I 10, the main body bracket II 20, and the main body bracket III 30 and extended outside the data line wiring port 39 for standby.

[0049] Step 4: After the overall assembly of the temperature detection device is completed, it can be installed at the bottom 2 of the front frame of the roller 1. According to the principle that the front of the detection device (the side with the data line wiring port 39 is the back) is consistent with the direction of the front frame of the roller 1, the three infrared temperature sensors are adjusted to an appropriate height, and the magnetic seat I 13 and the magnetic seat III 33 are respectively symmetrically adsorbed on both sides of the bottom end of the frame, and adjusted until the entire temperature detection device is stably and firmly connected; finally, the sensor data line I 14, the sensor data line II 25, and the sensor data line III 35 are connected to the external temperature detection device to complete the installation of the entire road surface compaction temperature detection device. After completion, the temperature of the asphalt mixture can be detected and the compaction condition can be judged in real time during the road surface compaction operation.

Claims

1. A pavement compaction temperature detection device, characterized in that: It includes a main body bracket, a magnetic adsorption seat, and an infrared temperature sensor array; the main body bracket is adsorbed and fixed to the bottom of the front frame of the roller through the magnetic adsorption seat; the infrared temperature sensor is fixedly installed on the main body bracket.

2. The pavement compaction temperature detection device according to claim 1, characterized in that: The main body bracket adopts a hollow structure and includes a main body bracket Ⅰ, a main body bracket Ⅱ, and a main body bracket Ⅲ. The main body bracket Ⅰ and the main body bracket Ⅲ have the same structure and are symmetrically arranged on both sides of the main body bracket Ⅱ. The main body bracket Ⅰ, the main body bracket Ⅱ, and the main body bracket Ⅲ are connected through the end sockets of the hollow structure. The end socket of the hollow structure of the main body bracket Ⅱ is larger than the end sockets of the hollow structures of the main body bracket Ⅰ and the main body bracket Ⅲ, so that the end sockets of the hollow structures of the main body bracket Ⅰ and the main body bracket Ⅲ can just be inserted into the end socket of the hollow structure of the main body bracket Ⅱ. The infrared temperature sensor array includes a number of infrared temperature sensors Ⅰ detachably installed on the main body bracket Ⅰ, a number of infrared temperature sensors Ⅱ detachably installed on the main body bracket Ⅱ, and a number of infrared temperature sensors Ⅲ detachably installed on the main body bracket Ⅲ; the number and positions of the infrared temperature sensor array are determined according to the detection requirements. The magnetic adsorption seat includes a magnetic adsorption seat Ⅰ and a magnetic adsorption seat Ⅲ, which are respectively detachably installed on the main body bracket Ⅰ and the main body bracket Ⅲ.

3. The pavement compaction temperature detection device according to claim 2, wherein: The main body bracket Ⅰ includes a connecting rod and a first mounting bracket; the connecting rod is fixedly arranged on the upper end surface of the first mounting bracket away from the end socket of the hollow structure, and the magnetic adsorption seat Ⅰ is fixedly connected to the inner side of the connecting rod through bolts; a number of sensor mounting brackets Ⅰ for installing the infrared temperature sensor Ⅰ are fixedly connected to the lower end surface of the first mounting bracket.

4. A pavement compaction temperature detection device according to claim 3, characterized in that: The sensor mounting bracket Ⅰ is welded to the lower end of the first mounting bracket in a U-shaped groove structure. The infrared temperature sensor Ⅰ with a thread is placed into the U-shaped groove of the sensor mounting bracket Ⅰ and fixed by an upper fixing nut Ⅰ and a lower fixing nut Ⅰ to adjust the vertical height of the infrared temperature sensor.

5. The pavement compaction temperature detection device according to claim 4, wherein: A strip-shaped through groove Ⅰ for fixedly connecting the main body bracket Ⅱ is opened on the first mounting bracket on the side close to the end socket of the hollow structure.

6. The pavement compaction temperature detection device according to claim 5, wherein: There is an opening at the middle connection end between the sensor mounting bracket Ⅰ and the first mounting bracket, and the sensor data line Ⅰ of the infrared temperature sensor Ⅰ extends outward through the opening into the hollow structure.

7. The pavement compaction temperature detection device according to claim 6, characterized in that: A number of bolt holes are symmetrically arranged at both ends of the main body bracket Ⅱ corresponding to the direction of the strip-shaped through groove Ⅰ. Bolts pass through the bolt holes and the strip-shaped through groove Ⅰ to connect with the main body bracket Ⅰ, and by adjusting the relative positions of the bolt holes and the strip-shaped through groove Ⅰ, the lengths of different main body brackets can be obtained.

8. The pavement compaction temperature detection device according to claim 7, characterized in that: A number of sensor mounting brackets Ⅱ for installing the infrared temperature sensor Ⅱ are fixedly connected to the bottom end of the main body bracket Ⅱ; the sensor mounting bracket Ⅱ is welded to the lower part of the main body bracket Ⅱ in a U-shaped groove structure. The infrared temperature sensor Ⅱ with a thread is inserted into the U-shaped groove of the mounting bracket Ⅱ and fixed by an upper fixing nut Ⅱ and a lower fixing nut Ⅱ to adjust the vertical height of the infrared temperature sensor.

9. The pavement compaction temperature detection device according to claim 8, wherein: There is an opening at the middle connection end between the sensor mounting bracket Ⅱ and the main body bracket Ⅱ, and the sensor data line Ⅱ of the infrared temperature sensor Ⅱ extends outward through the opening into the hollow structure.

10. A pavement compaction temperature detection device according to claim 9, characterized in that: The connection method between the main body bracket III and the main body bracket II is the same as the structure of the main body bracket I and the connection method with the main body bracket II; the connection method of the magnetic suction base III and the infrared temperature sensor III with the main body bracket III is also the same as that of the main body bracket I; a data line wiring port is provided on the first mounting bracket of the main body bracket I close to the connecting rod; the data line wiring port can also be set at the corresponding position of the main body bracket III.

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