Device for detecting shearing resistance of asphalt road

Abstract

The invention discloses an asphalt road shear resistance detection device, and relates to the technical field of asphalt road detection. The device comprises a detection box, four lifting sliding rods are uniformly and fixedly connected in the detection box, one ends of the four lifting sliding rods are slidably connected with a base, one end of the detection box is fixedly connected with an electric push rod, the output end of the electric push rod is fixedly connected with the base, a detection sample is installed at the top of the base, and a fan-shaped detection block is rotatably connected in the detection box. A heat exchange bin is formed in the top of the base. A circulating pump is started to drive a heat exchange medium in a heat exchange bin to circularly flow between a refrigeration compressor and the heat exchange bin, so that heat exchange is performed through a heat exchange plate and a detection sample, and then a transmission assembly is arranged to be matched with an electric push rod and a fan-shaped detection block for use; when the electric push rod is started to push the detection sample to approach the fan-shaped detection block, the fan-shaped detection block is driven to rotate, so that the fan-shaped detection block and the detection sample form shearing contact.

Description

Technical Field

[0001] The present application relates to the technical field of asphalt road testing, and in particular to a device for testing the shear resistance of asphalt roads. Background Art

[0002] With the rapid development of transportation infrastructure, asphalt pavement has dominated the pavement structure of high-grade highways in my country due to its superior performance. The asphalt pavement structure is a layered structure composed of multiple layers of different materials. The bonding performance between these structural layers plays a vital role in the continuity and durability of the entire pavement structure. Under the repeated effects of the external environment and traffic loads, if the interlayers are not properly handled, it is very easy to cause damage to the pavement structure, thereby affecting the performance and life of the road. Therefore, it is very necessary to study the factors affecting the interlayer bonding performance of asphalt pavements. This study can not only improve the service life of the road, but also reduce the economic losses caused by pavement damage, and also help to improve driving safety and reduce maintenance costs. The interlayer bonding performance of asphalt pavements is affected by many factors, including material properties, construction technology, environmental conditions, etc. In-depth research on the influence of these factors on the interlayer bonding performance can provide a scientific basis for the design and construction of asphalt pavements, optimize the pavement structure, and improve its performance under various environmental conditions.

[0003] At present, the main methods for testing the shear strength of asphalt mixtures in China are the triaxial test method and the uniaxial penetration test method. The triaxial test method simulates the actual stress condition of the mixture by applying confining pressure around the compressed cylindrical asphalt mixture specimen, and determines the shear strength parameters c and φ by calculation or drawing. In addition, there are conventional test methods such as constant height shear test, uniaxial penetration test, triaxial test and direct shear test. However, these methods are not convenient for engineering promotion due to the low controllability of test conditions, poor comparability of test results and the inconsistency between the stress of test specimens and the actual road conditions. For example, in the existing evaluation studies on the bonding performance of the adhesive layer, the evaluation method used is the direct shear test. This method does not consider the influence of vehicle load on the bonding performance between different structural layers of the asphalt pavement, and cannot effectively simulate the stress condition of the asphalt pavement during actual use. Therefore, it is very necessary to use a test instrument close to the actual stress condition of the pavement to study the influencing factors of interlayer bonding performance, which helps to more accurately evaluate the interlayer bonding performance and durability of asphalt pavements. To address these issues, future research can explore more advanced testing techniques, such as dynamic shear tests and shear tests under temperature control, to simulate the bonding performance of actual pavements under different temperature and load conditions. In addition, the development of new bonding materials and construction techniques can also be considered to improve the interlayer bonding strength and durability of asphalt pavements, thereby extending the service life of the pavement and reducing maintenance costs.

[0004] In actual use, vehicle loads acting on new asphalt pavement will cause relative shear deformation in the connecting layer of the new and old asphalt pavements. However, existing testing equipment can only test direct shear strength, reflecting the interlayer shear resistance under the most basic conditions, and cannot perform torsional shear strength tests on the interlayer structure of asphalt mixtures, which limits the detection range of the device and thus affects the detection accuracy of the device. Summary of the invention

[0005] The purpose of the present application is to solve the problem that the existing testing equipment can only test the direct shear strength, reflecting the interlayer shear resistance under the most basic conditions, but cannot perform torsional shear strength test on the interlayer structure of asphalt mixture, which limits the detection range of the device and thus affects the detection accuracy of the device. The present application provides an asphalt highway shear resistance detection device.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: A device for detecting the shear resistance of an asphalt highway comprises a detection box, wherein four lifting slide bars are evenly fixedly connected inside the detection box, one end of the four lifting slide bars is slidably connected to a base, one end of the detection box is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to the base, a detection sample is installed on the top of the base, a fan-shaped detection block is rotatably connected inside the detection box, a heat exchange bin is provided on the top of the base, a mounting groove is provided on the top of the heat exchange bin, a heat exchange plate is fixedly connected inside the mounting groove, the detection sample is placed on the top of the heat exchange plate, one end of the base is fixedly connected to a delivery pipe communicating with the inside of the heat exchange plate, and the other end of the base is fixedly connected to a circulation pipe communicating with the inside of the heat exchange plate, one end of the detection box is fixedly connected to a circulation pump, the output end of the circulation pump is fixedly connected to the delivery pipe, one end of the detection box is fixedly connected to a refrigeration compressor, the input end of the refrigeration compressor is fixedly connected to the circulation pipe, the output end of the refrigeration compressor is fixedly connected to the input end of the circulation pump, and a transmission assembly for driving the fan-shaped detection block to rotate is installed on one end of the base.

[0007] By adopting the above technical scheme, firstly, the circulation pump is started to drive the heat exchange medium inside the heat exchange bin to circulate between the refrigeration compressor and the heat exchange bin, so as to exchange heat with the test sample through the heat exchange plate, and then the transmission assembly is set to cooperate with the electric push rod and the fan-shaped detection block, so that when the electric push rod is started to push the test sample to move closer to the fan-shaped detection block, the fan-shaped detection block is driven to rotate, so that the fan-shaped detection block and the test sample form a shear resistance, thereby facilitating the torsional shear strength test of the internal structure of the test sample in a low-temperature environment, effectively expanding the detection range of the device and improving the detection accuracy of the device.

[0008] Furthermore, the transmission assembly includes a transmission gear fixedly connected to one end of the sector-shaped detection block, and one end of the base is fixedly connected to a transmission rack, and the transmission rack is meshed with the transmission gear.

[0009] By adopting the above technical solution and setting the coordinated use of the transmission gear and the transmission rack, when the electric push rod is started to drive the base to move along the length direction of the lifting slide rod, the transmission rack is driven to engage with the transmission gear, so that the transmission gear drives the fan-shaped detection block to rotate, thereby effectively improving the practicability of the device.

[0010] Furthermore, a plurality of drainage plates are evenly and fixedly connected inside the heat exchange bin, and two adjacent drainage plates are arranged alternately, and divide the interior of the heat exchange bin into a curved drainage channel, one end of the delivery pipe is connected to the input end of the drainage channel, and one end of the circulation pipe is connected to the output end of the drainage channel.

[0011] By adopting the above technical solution, by setting the guide plate and the heat exchange chamber for use, it is convenient to guide the heat exchange medium passing through the inside of the heat exchange chamber through the guide plate to flow along the guide channel and pass through the inside of the heat exchange chamber, thereby effectively extending the distance of the heat exchange medium passing through the inside of the heat exchange chamber, thereby improving the heat exchange and cooling effect of the heat exchange medium through the heat exchange plate and the test sample, and improving the practicability of the device.

[0012] Furthermore, one end of the sector-shaped detection block is fixedly connected with a rubber gripping plate.

[0013] By adopting the above technical solution, by setting up the rubber gripping plate and the fan-shaped detection block for use in conjunction, the fan-shaped detection block forms a flexible resistance between the fan-shaped detection block and the detection sample through the heat exchange chamber, thereby increasing the friction between the fan-shaped detection block and the heat exchange chamber, and improving the resistance stability between the fan-shaped detection block and the heat exchange chamber.

[0014] Furthermore, a positioning plate is fixedly connected to one end of the top of the base, and one end of the test sample is in conflict with the positioning plate.

[0015] By adopting the above technical solution and setting the positioning plate for use with the test sample, it is convenient to start the electric push rod and cooperate with the transmission assembly to drive the fan-shaped test block to rotate around the hinge axis, so that one end of the fan-shaped test block comes into contact with the test sample, and pushes the test sample along the length direction of the base to come into contact with the positioning plate, thereby effectively improving the stability of the test sample along the length direction of the base after being subjected to force.

[0016] Furthermore, a rear opening is provided at one end of the detection box, and a front opening is provided at the other end of the detection box, the interiors of the rear opening and the front opening are fixedly connected with a shielding curtain, and one end of the conveying pipe and the circulation pipe both pass through the interior of the rear opening.

[0017] By adopting the above technical solution, by setting the shielding curtain in conjunction with the rear opening and the front opening, it is convenient to use the shielding curtain to shield the internal space of the rear opening and the front opening, so as to reduce the influence of the internal heat of the test box on the shear performance test of the test sample from circulating with the outside through the front opening and the rear opening.

[0018] Furthermore, an observation window is provided at one end of the detection box, and a transparent glass window is fixedly connected to the interior of the observation window.

[0019] By adopting the above technical solution, by setting up the observation window and the transparent glass window for use together, the staff can directly observe the shearing effect and performance of the test sample when the sector-shaped test block and the test sample form a conflict through the transparent glass window, thereby further improving the practicality of the device.

[0020] Furthermore, the surfaces of the heat exchange chamber, the heat exchange plate and the drainage plate are all coated with an organic silicon waterproof coating.

[0021] By adopting the above technical solution and providing an organic silicon waterproof coating, the corrosion resistance of the device surface is effectively improved, thereby extending the service life of the device.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. First, the circulating pump is started to drive the heat exchange medium inside the heat exchange bin to circulate between the refrigeration compressor and the heat exchange bin, so that heat is exchanged with the test sample through the heat exchange plate. Then, the transmission component is set to cooperate with the electric push rod and the fan-shaped detection block. When the electric push rod is started, the test sample is pushed toward the fan-shaped detection block, and the fan-shaped detection block is driven to rotate, so that the fan-shaped detection block and the test sample form a shear resistance, thereby facilitating the torsional shear strength test of the internal structure of the test sample in a low temperature environment, effectively expanding the detection range of the device and improving the detection accuracy of the device.

[0023] 2. By setting up the coordinated use of the transmission gear and the transmission rack, when the electric push rod is started to drive the base to move along the length direction of the lifting slide rod, the transmission rack is driven to engage with the transmission gear, so that the transmission gear drives the sector-shaped detection block to rotate, effectively improving the practicability of the device.

[0024] 3. By setting up the coordinated use of the guide plate and the heat exchange bin, the heat exchange medium passing through the heat exchange bin can be guided by the guide plate to flow along the guide channel and pass through the interior of the heat exchange bin, thereby effectively extending the travel of the heat exchange medium through the interior of the heat exchange bin, thereby improving the heat exchange and cooling effect of the heat exchange medium through the heat exchange plate and the test sample, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0026] Figure 2 It is a side cross-sectional view of the device body in this application.

[0027] Figure 3 It is an exploded view of the internal structure of the detection box in this application.

[0028] Figure 4 It is an exploded view of the internal structure of the mounting slot in this application.

[0029] Figure 5 It is a schematic diagram of the internal structure of the heat exchange chamber in this application.

[0030] Description of reference numerals: 1. Test box; 2. Lifting slide bar; 3. Base; 4. Electric push rod; 5. Test sample; 6. Fan-shaped test block; 7. Heat exchange chamber; 8. Mounting slot; 9. Heat exchange plate; 10. Delivery pipe; 11. Circulation pipe; 12. Circulation pump; 13. Refrigeration compressor; 14. Transmission gear; 15. Transmission rack; 16. Drainage plate; 17. Rubber gripper; 18. Positioning plate; 19. Rear opening; 20. Front opening; 21. Shielding curtain; 22. Observation window; 23. Transparent glass window. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 —5 Further details of this application are provided.

[0032] The embodiment of the present application discloses a device for detecting the shear resistance of an asphalt highway.

[0033] Reference Figure 1 - Figure 4A device for testing the shear resistance of asphalt roads comprises a testing box 1, four lifting slide bars 2 are evenly and fixedly connected inside the testing box 1, one end of the four lifting slide bars 2 is slidably connected to a base 3, one end of the testing box 1 is fixedly connected to an electric push rod 4, the output end of the electric push rod 4 is fixedly connected to the base 3, a testing sample 5 is installed on the top of the base 3, a fan-shaped testing block 6 is rotatably connected inside the testing box 1, a heat exchange chamber 7 is provided on the top of the base 3, a mounting groove 8 is provided on the top of the heat exchange chamber 7, a heat exchange plate 9 is fixedly connected inside the mounting groove 8, and the testing sample 5 is placed on the top of the heat exchange plate 9. One end of the base 3 is fixedly connected with a delivery pipe 10 communicating with the inside of the heat exchange plate 9, and the other end of the base 3 is fixedly connected with a circulation pipe 11 communicating with the inside of the heat exchange plate 9, one end of the detection box 1 is fixedly connected with a circulation pump 12, the output end of the circulation pump 12 is fixedly connected with the delivery pipe 10, one end of the detection box 1 is fixedly connected with a refrigeration compressor 13, the input end of the refrigeration compressor 13 is fixedly connected with the circulation pipe 11, the output end of the refrigeration compressor 13 is fixedly connected with the input end of the circulation pump 12, and one end of the base 3 is installed with a transmission component for driving the sector-shaped detection block 6 to rotate; The transmission assembly includes a transmission gear 14 fixedly connected to one end of the sector-shaped detection block 6 , and a transmission rack 15 is fixedly connected to one end of the base 3 , and the transmission rack 15 is meshed with the transmission gear 14 .

[0034] When in use, first, according to the detection requirements, the circulation pump 12 can be started to cooperate with the delivery pipe 10 and the circulation pipe 11 to pump the heat exchange medium to circulate between the heat exchange chamber 7 and the refrigeration compressor 13, and at the same time, the refrigeration compressor 13 is started to cool and cool the medium input into the heat exchange chamber 7, so that when the medium passes through the inside of the heat exchange chamber 7, it exchanges heat and cools down with the detection sample 5 through the heat exchange plate 9, thereby reducing the surface temperature of the detection sample 5 to simulate the state of the detection sample 5 under low temperature outdoors, and then a detection sensor is arranged inside the heat exchange plate 9, and the detection sample 5 with detection is placed on the top of the heat exchange plate 9, and then the electric push rod 4 is started to push out the base 3, and the base 3 drives the heat exchange plate 9 to push the detection sample 5 to move upward along the length direction of the lifting slide rod 2, so that the base 3 drives the detection sample 5 to move closer to the direction of the fan-shaped detection block 6, and at the same time, the base 3 drives the sensor The movable rack 15 moves along the length direction of the lifting slide bar 2, and drives the transmission rack 15 to mesh with the transmission gear 14, so that the transmission gear 14 drives the fan-shaped detection block 6 to rotate, and then the base 3 pushes the detection sample 5 to move upward along the length direction of the lifting slide bar 2, and drives the fan-shaped detection block 6 to rotate around the hinge axis through the transmission gear 14, and makes one end of the fan-shaped detection block 6 form a conflict with the detection sample 5, so that the fan-shaped detection block 6 forms a shear force along the length direction of the lifting slide bar 2 and the length direction of the base 3 on the internal structure of the detection sample 5 at the same time, and at the same time, the detection sample 5 transmits the shear force in two directions to the detection sensor inside the heat exchange plate 9 for detection, so as to facilitate the torsional shear shear strength detection of the internal structure of the detection sample 5, effectively expand the detection range of the device, and improve the detection accuracy of the device.

[0035] Reference Figure 3 - Figure 5 A plurality of drainage plates 16 are evenly and fixedly connected inside the heat exchange bin 7. Two adjacent drainage plates 16 are arranged alternately and divide the interior of the heat exchange bin 7 into a curved drainage channel. One end of the delivery pipe 10 is connected to the input end of the drainage channel, and one end of the circulation pipe 11 is connected to the output end of the drainage channel.

[0036] During use, when the circulating pump 12 is started to drive the heat exchange medium cooled by the refrigeration compressor 13 to pass through the interior of the heat exchange chamber 7, the heat exchange medium passes through the interior of the drainage channel along the guiding direction of the drainage plate 16, thereby effectively extending the travel of the heat exchange medium through the rubber gripping plate 17, and making the heat exchange and cooling of the heat exchange medium through the heat exchange plate 9 and the test sample 5 more sufficient, thereby effectively improving the heat exchange and cooling effect on the test sample 5.

[0037] Reference Figure 2 and Figure 3 One end of the sector-shaped detection block 6 is fixedly connected with a rubber gripping plate 17 .

[0038] During use, when the electric push rod 4 is started to push the base 3 to drive the transmission assembly to drive the fan-shaped detection block 6 to rotate around the hinge axis, the fan-shaped detection block 6 drives the rubber gripping plate 17 to form a resistance with one end of the detection sample 5, so that the fan-shaped detection block 6 forms a flexible resistance with one end of the detection sample 5 through the rubber gripping plate 17, and strengthens the friction between the fan-shaped detection block 6 and the detection sample 5, thereby improving the gripping effect and stability of the fan-shaped detection block 6 on the detection sample 5.

[0039] Reference Figure 2 - Figure 4 A positioning plate 18 is fixedly connected to one end of the top of the base 3 , and one end of the detection sample 5 is in conflict with the positioning plate 18 .

[0040] When in use, when the electric push rod 4 is started to push the base 3 to drive the detection sample 5 to move along the length direction of the lifting slide rod 2, and the fan-shaped detection block 6 is driven by the transmission component to form a conflict with the detection sample 5 around the hinge axis, and the detection sample 5 is pushed to move along the length direction of the base 3, the fan-shaped detection block 6 pushes the detection sample 5 to form a conflict with the positioning plate 18, thereby reducing the situation where the detection sample 5 is affected by the conflict of the fan-shaped detection block 6 and moves along the surface of the base 3, and further improves the detection stability of the device.

[0041] Reference Figure 1 - Figure 3 A rear opening 19 is provided at one end of the detection box 1, and a front opening 20 is provided at the other end of the detection box 1. A shielding curtain 21 is fixedly connected to the interior of the rear opening 19 and the front opening 20, and one end of the conveying pipe 10 and the circulation pipe 11 passes through the interior of the rear opening 19.

[0042] During use, after the test sample 5 is pulled through the front opening 20 and placed on the top of the heat exchange plate 9, the shielding curtain 21 is used to quickly shield the inside of the front opening 20 to reduce the flow heat exchange between the air inside the test box 1 and the outside through the front opening 20. At the same time, when the electric push rod 4 is started to drive the base 3 to drive one end of the conveying pipe 10 and the circulation pipe 11 to move along the inside of the rear opening 19, the shielding curtain 21 is used to shield the inside of the rear opening 19 to reduce the flow heat exchange between the air inside the test box 1 and the outside through the rear opening 19, thereby effectively improving the heat exchange between the inside and outside of the test box 1, improving the insulation effect inside the test box 1, and reducing the influence of external temperature changes on the shear resistance test of the test sample 5 inside the test box 1.

[0043] Reference Figure 1 and Figure 2 An observation window 22 is provided at one end of the detection box 1 , and a transparent glass window 23 is fixedly connected to the interior of the observation window 22 .

[0044] During use, when the electric push rod 4 is started to drive the base 3 to push the test sample 5 up along the length direction of the lifting slide rod 2, and cooperates with the transmission component to drive the fan-shaped test block 6 to form a shear resistance on the test sample 5, the staff can directly observe the deformation degree of the surface of the test sample 5 through the transparent glass window 23, and intuitively feel the shear resistance effect of the test sample 5, which further improves the practicality of the device.

[0045] Reference Figure 3 and Figure 5 The surfaces of the heat exchange chamber 7, the heat exchange plate 9 and the guide plate 16 are all coated with an organic silicon waterproof coating.

[0046] When in use, a silicone waterproof coating is applied on the surface of the heat exchange bin 7, the heat exchange plate 9 and the drainage plate 16, so that a waterproof protective layer is formed on the surface of the heat exchange bin 7, the heat exchange plate 9 and the drainage plate 16, thereby effectively improving the corrosion resistance of the surface of the heat exchange bin 7, the heat exchange plate 9 and the drainage plate 16, extending the service life of the device, and reducing the scale formation inside the heat exchange bin 7.

[0047] The implementation principle of the asphalt highway shear resistance testing device of this embodiment is as follows: first, the circulating pump 12 can be started according to the testing requirements to pump the refrigeration compressor 13 to allow the refrigerated heat exchange medium to pass through the inside of the heat exchange chamber 7, and the heat exchange medium is guided along the guide direction of the guide plate 16 and passes through the inside of the drainage channel, thereby effectively extending the travel of the heat exchange medium through the rubber gripping plate 17, and making the heat exchange and cooling of the heat exchange medium through the heat exchange plate 9 and the test sample 5 more sufficient, thereby reducing the surface temperature of the test sample 5 to simulate the state of the test sample 5 at low temperature outdoors, and then by arranging a detection sensor inside the heat exchange plate 9, and placing the test sample 5 with detection on the top of the heat exchange plate 9, in this process, after the test sample 5 is pulled through the front opening 20 and placed on the top of the heat exchange plate 9, the shielding curtain 21 is used to quickly form a shielding on the inside of the front opening 20, so as to reduce the flow heat exchange between the air inside the test box 1 and the outside through the front opening 20; Then, the electric push rod 4 is started to push out the base 3, and the base 3 drives the heat exchange plate 9 to push the detection sample 5 to move upward along the length direction of the lifting slide bar 2, so that the base 3 drives the detection sample 5 to move closer to the fan-shaped detection block 6, and at the same time, the base 3 drives the transmission rack 15 to move along the length direction of the lifting slide bar 2, and drives the transmission rack 15 to engage with the transmission gear 14, so that the transmission gear 14 drives the fan-shaped detection block 6 to rotate, and then the base 3 pushes the detection sample 5 to move upward along the length direction of the lifting slide bar 2, and drives the fan-shaped detection block 6 to rotate around the hinge axis through the transmission gear 14, so that the fan-shaped detection The measuring block 6 drives the rubber gripping plate 17 to form a conflict with one end of the test sample 5, so that the fan-shaped testing block 6 simultaneously forms a shear force along the length direction of the lifting slide bar 2 and a shear force along the length direction of the base 3 on the internal structure of the test sample 5, and at the same time, the test sample 5 transmits the shear forces borne in two directions to the detection sensor inside the heat exchange plate 9 for detection, and in this process, when the electric push rod 4 is started to drive the base 3 to drive one end of the conveying pipe 10 and the circulation pipe 11 to move along the inside of the rear port 19, the shielding curtain 21 is used to shield the inside of the rear port 19, so as to reduce the flow heat exchange between the air inside the test box 1 and the outside through the rear port 19; When the sector-shaped detection block 6 comes into conflict with the detection sample 5 around the hinge axis and pushes the detection sample 5 to move along the length direction of the base 3, the sector-shaped detection block 6 pushes the detection sample 5 to come into conflict with the positioning plate 18 to maintain the installation stability of the detection sample 5. At the same time, the staff can directly observe the deformation degree of the surface of the detection sample 5 through the transparent glass window 23 and intuitively feel the shear resistance effect of the detection sample 5.

Claims

1. A device for testing the shear resistance of an asphalt road, comprising a testing box (1), characterized in that: The detection box (1) is evenly and fixedly connected to four lifting slide bars (2) inside, one end of the four lifting slide bars (2) is slidably connected to a base (3), one end of the detection box (1) is fixedly connected to an electric push rod (4), the output end of the electric push rod (4) is fixedly connected to the base (3), a detection sample (5) is installed on the top of the base (3), the detection box (1) is rotatably connected to a fan-shaped detection block (6), a heat exchange chamber (7) is provided on the top of the base (3), a mounting groove (8) is provided on the top of the heat exchange chamber (7), a heat exchange plate (9) is fixedly connected inside the mounting groove (8), the detection sample (5) is placed on the top of the heat exchange plate (9), and the base (3) is fixedly connected to the detection box (1). ) is fixedly connected to a delivery pipe (10) communicating with the interior of the heat exchange plate (9), and the other end of the base (3) is fixedly connected to a circulation pipe (11) communicating with the interior of the heat exchange plate (9); one end of the detection box (1) is fixedly connected to a circulation pump (12), and the output end of the circulation pump (12) is fixedly connected to the delivery pipe (10); one end of the detection box (1) is fixedly connected to a refrigeration compressor (13), and the input end of the refrigeration compressor (13) is fixedly connected to the circulation pipe (11), and the output end of the refrigeration compressor (13) is fixedly connected to the input end of the circulation pump (12); and one end of the base (3) is mounted with a transmission assembly for driving the sector-shaped detection block (6) to rotate.

2. The asphalt road shear resistance testing device according to claim 1 is characterized by: The transmission assembly comprises a transmission gear (14) fixedly connected to one end of the sector-shaped detection block (6); one end of the base (3) is fixedly connected to a transmission rack (15), and the transmission rack (15) is meshed with the transmission gear (14).

3. The asphalt road shear resistance testing device according to claim 1 is characterized by: The interior of the heat exchange chamber (7) is evenly and fixedly connected with a plurality of drainage plates (16), and two adjacent drainage plates (16) are arranged in a staggered manner, and the interior of the heat exchange chamber (7) is divided into a curved drainage channel, one end of the delivery pipe (10) is connected to the input end of the drainage channel, and one end of the circulation pipe (11) is connected to the output end of the drainage channel.

4. The asphalt road shear resistance testing device according to claim 1, characterized in that: One end of the sector-shaped detection block (6) is fixedly connected to a rubber gripping plate (17).

5. The asphalt road shear resistance testing device according to claim 1 is characterized by: A positioning plate (18) is fixedly connected to one end of the top of the base (3), and one end of the test sample (5) is in contact with the positioning plate (18).

6. The asphalt road shear resistance testing device according to claim 1, characterized in that: A rear opening (19) is provided at one end of the detection box (1), and a front opening (20) is provided at the other end of the detection box (1); a shielding curtain (21) is fixedly connected to the interior of the rear opening (19) and the front opening (20); and one end of the delivery pipe (10) and the circulation pipe (11) pass through the interior of the rear opening (19).

7. The asphalt road shear resistance testing device according to claim 1 is characterized by: An observation window (22) is provided at one end of the detection box (1), and a transparent glass window (23) is fixedly connected to the interior of the observation window (22).

8. The asphalt road shear resistance testing device according to claim 1, characterized in that: The surfaces of the heat exchange chamber (7), the heat exchange plate (9) and the drainage plate (16) are all coated with an organic silicon waterproof coating.

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