Asphalt hardness detection equipment

Abstract

The utility model belongs to the technical field of asphalt hardness detection, and particularly relates to asphalt hardness detection equipment. Comprising a base plate on which a storage barrel is arranged for placing asphalt; the hardness detection unit is arranged on the substrate; the hardness detection unit comprises a support plate arranged on the top of the substrate; the rack is arranged on the supporting plate in a bolt connection mode; the electric push rod is arranged on the rack; the cantilever is arranged on the electric push rod; the displacement sensors are arranged at the bottom of the cantilever, and the multiple displacement sensors are evenly distributed; the hammerheads are arranged on the displacement sensor, and hardness data of multiple different positions can be detected at the same time through the multiple hammerheads; and the computer is arranged on the substrate and is connected with the displacement sensor through an electric wire. The utility model provides asphalt hardness detection equipment which can detect hardness data of a plurality of different positions at the same time through a plurality of hammers so as to realize more comprehensive and more accurate evaluation on asphalt hardness.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bitumen hardness detection technical field, especially relate to a bitumen hardness detection equipment. BACKGROUND

[0002] Bitumen hardness is an important indicator for evaluating the performance of bitumen materials, and is widely used in road engineering, building materials and other transportation infrastructure construction. The hardness performance of bitumen directly affects its durability, anti-aging performance and service life under different environmental conditions, so accurate detection of bitumen hardness is very important. Traditional bitumen hardness detection equipment mainly uses hammering method, which knocks the surface of bitumen sample with a hammer head to evaluate its hardness. Although this method is simple, its effectiveness and reliability are limited to some extent by the structure of the equipment and the way of operation.

[0003] Most of the bitumen hardness detection equipment on the market, especially the hammering type hardness testing instrument, adopts a single hammer head design. Specifically, the hammer head strikes the surface of bitumen with a predetermined weight and speed, and the hardness value of bitumen is inferred by measuring the indentation or rebound after striking. However, this single-position striking method has some shortcomings:

[0004] 1. Local detection problem: Since there is only one hammer head, the striking position can only represent the hardness characteristics of a certain point on the surface of bitumen. The hardness of bitumen may vary at different positions and depths, and single-position detection cannot fully reflect the overall hardness performance of bitumen materials.

[0005] 2. Lack of representativeness: The hardness of bitumen materials may be affected by external environment, construction technology, material ratio and other factors, so the hardness test of local area often cannot represent the hardness of bitumen in the whole sample or the whole project, which may lead to deviation of the test results.

[0006] 3. Low detection efficiency: Single hammer head detection can only obtain limited hardness data, which makes the detection process more tedious, and only one position can be detected at a time, so it is impossible to quickly obtain the overall hardness distribution. When a large area of bitumen needs to be evaluated for hardness, the detection efficiency is low, which affects the progress and quality control of the project. INVENTION CONTENTS

[0007] The utility model aims at the above-mentioned technical problem, provides a kind of bitumen hardness detection equipment that can detect the hardness data of multiple different positions at the same time by multiple hammer heads, so as to realize more comprehensive, more accurate evaluation of bitumen hardness.

[0008] Therefore, the utility model provides a kind of bitumen hardness detection equipment, which comprises:

[0009] Base plate

[0010] The base frame is arranged at the bottom of the base plate.

[0011] The mounting groove is arranged on the base plate and extends downward through the base plate.

[0012] The storage barrel is arranged in the mounting groove and is used for placing asphalt.

[0013] The hardness detection unit is arranged on the base plate and is used for more comprehensive and accurate evaluation of the hardness of the asphalt.

[0014] The hardness detection unit comprises:

[0015] The support plate is arranged at the top of the base plate.

[0016] The rack is arranged on the support plate by means of bolt connection.

[0017] The electric push rod is arranged on the rack.

[0018] The cantilever is arranged on the electric push rod.

[0019] The displacement sensor is arranged at the bottom of the cantilever, and a plurality of displacement sensors are uniformly distributed.

[0020] The hammer head is arranged on the displacement sensor, and a plurality of hammer heads can detect hardness data at different positions at the same time.

[0021] The computer is arranged on the base plate, and the computer is connected with the displacement sensor through an electric wire. The displacement sensor monitors and records the displacement data of the hammer head in the asphalt sample in real time, and then calculates the hardness value of the asphalt.

[0022] In the above technical solution, further, the support plate is provided with a guide mechanism for keeping the cantilever stable sliding, and the guide mechanism comprises:

[0023] The fixed plate is arranged on the upper part of the support plate.

[0024] The guide rod is arranged on the fixed plate.

[0025] The sliding sleeve is slidably arranged on the guide rod, and the sliding sleeve is fixedly connected with the cantilever.

[0026] In any of the above technical solutions, further, the displacement sensor is provided with a threaded section, the outer side of the threaded section is provided with an external thread, the inside of the cantilever is provided with an internal thread, and the external thread on the threaded section is threadedly connected with the internal thread in the cantilever, so as to realize quick disassembly and replacement of the hammer head.

[0027] In any of the above technical solutions, further, the storage barrel is slidably connected with the mounting groove, the storage barrel is provided with a handle at both ends of the outer side, and the storage barrel is provided with universal wheels at the bottom.

[0028] In any of the above technical solutions, further, the base plate bottom is provided with a clamping mechanism for positioning the storage barrel.

[0029] In any of the above technical solutions, further, the clamping mechanism comprises:

[0030] The bracket is arranged at the left and right ends of the front side of the base plate bottom;

[0031] The fixed shaft is arranged between the two brackets;

[0032] The sliding plate is slidingly arranged at the two ends of the fixed shaft;

[0033] The clamp is arranged on the sliding plate, and the two clamps are sleeved on the storage barrel;

[0034] The mounting bracket is arranged on the base frame;

[0035] The motor is arranged on the mounting bracket;

[0036] The mounting plate is arranged on the base plate bottom;

[0037] The ball screw is rotatably arranged on the mounting plate, and the ball screw is connected with the output shaft of the motor;

[0038] The connecting plate is arranged at the rear end outside the clamp, and the connecting plate is threadedly connected with the ball screw.

[0039] The beneficial effects of the utility model are:

[0040] 1. The electric push rod drives the cantilever to vertically press down or push down the hammer head, so that the hammer head contacts the asphalt sample, and then generates a pressure mark on the asphalt surface. The displacement sensor monitors the displacement change of each hammer head when it contacts the asphalt surface in real time. Real-time data is transmitted to the computer through the wire, so as to accurately calculate the hardness of the asphalt. Through the simultaneous detection of multiple positions by multiple hammer heads, more comprehensive hardness data can be obtained, which helps to evaluate the overall hardness characteristics of the asphalt sample. The asphalt hardness detection can be more efficient and accurate, and more accurate data support can be provided.

[0041] 2. Through the cooperation of the guide rod and the sliding sleeve, the stable sliding of the cantilever can be effectively ensured. This not only improves the precision of avoiding deviation or bending of the cantilever during the pressing process, reduces the friction and wear, but also improves the efficiency and reliability of the hardness detection, and can provide more accurate data support for the asphalt quality evaluation.

[0042] 3. By setting an outer threaded section on the displacement sensor and achieving threaded connection with the inner thread of the cantilever, the hammer head is quickly disassembled and replaced, simplifying the maintenance process and improving work efficiency, while being able to adapt to different detection requirements, ensuring the accuracy and reliability of the hardness test, especially in the scene of frequent replacement or different hardness hammer head, greatly improving the flexibility and convenience of operation;

[0043] 4. By providing universal wheels at the bottom of the storage barrel, the storage barrel can be easily moved to the desired position without the need for heavy lifting, reducing manual labor intensity, especially when the equipment needs to be frequently moved or adjusted, which can effectively save time and effort and improve work efficiency; the storage barrel and the installation groove are connected in a sliding manner, making it easy for the operator to remove the storage barrel from the installation groove for replacement, cleaning or replenishment of materials, improving the maintenance and operation efficiency of the equipment;

[0044] 5. The user places the storage barrel containing the asphalt sample in the installation groove, and the storage barrel is located in the clamping mechanism area at the bottom of the base plate, the connecting plate drives the clamp to move inward or outward by driving the ball screw to rotate, the clamp is automatically sleeved on the outside of the storage barrel, ensuring that the storage barrel is fixed and ensuring that the storage barrel is accurately aligned with the detection area, preventing it from shifting during the test process, thereby ensuring the reliability of the test results. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

[0046] Figure 2 is a schematic diagram of the three-dimensional structure of the hardness detection unit of the utility model;

[0047] Figure 3 is a schematic diagram of the three-dimensional structure of the first part of the utility model;

[0048] Figure 4 is a schematic diagram of the three-dimensional structure of the second part of the utility model;

[0049] Figure 5 is a schematic diagram of the three-dimensional structure of the clamping mechanism of the utility model;

[0050] The figure is marked as: 1, base plate; 2, base frame; 3, mounting groove; 4, storage barrel; 5, hardness detection unit; 51, support plate; 52, rack; 53, electric push rod; 54, cantilever; 55, displacement sensor; 56, hammer head; 57, computer; 6, guide mechanism; 61, fixed plate; 62, guide rod; 63, sliding sleeve; 7, threaded section; 71, external thread; 72, internal thread; 8, handle; 9, universal wheel; 10, clamping mechanism; 101, support; 102, fixed shaft; 103, sliding plate; 104, clamp; 105, mounting bracket; 106, motor; 107, mounting plate; 108, ball screw; 109, connecting plate. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0052] In the description of the present application, it should be noted that the terms used herein are only for the purpose of describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but under appropriate circumstances, the techniques, methods and devices should be regarded as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0053] Embodiment 1:

[0054] As Figures 1-3 shown, the present embodiment provides a bitumen hardness detection device, comprising:

[0055] a base plate 1;

[0056] a base frame 2 arranged at the bottom of the base plate 1;

[0057] a mounting groove 3 arranged on the base plate 1, the mounting groove 3 extending from top to bottom to penetrate the base plate 1;

[0058] a storage barrel 4 arranged in the mounting groove 3, used for placing bitumen;

[0059] The hardness detection unit 5 is arranged on the base plate 1 and is used for more comprehensive and accurate evaluation of the hardness of the asphalt;

[0060] The hardness detection unit 5 comprises:

[0061] The support plate 51 is arranged on the top of the base plate 1.

[0062] The rack 52 is arranged on the support plate 51 by means of bolt connection.

[0063] The electric push rod 53 is arranged on the rack 52.

[0064] The cantilever 54 is arranged on the electric push rod 53.

[0065] The displacement sensor 55 is arranged at the bottom of the cantilever 54, and a plurality of displacement sensors 55 are uniformly distributed.

[0066] The hammer head 56 is arranged on the displacement sensor 55, and a plurality of hammer heads 56 can detect the hardness data of different positions at the same time.

[0067] The computer 57 is arranged on the base plate 1, and the computer 57 is connected with the displacement sensor 55 through an electric wire. The displacement sensor 55 monitors and records the displacement data of the hammer head 56 in the asphalt sample in real time, and then calculates the hardness value of the asphalt.

[0068] In the technical solution, the hardness of the asphalt sample at different positions can be detected at the same time through the design of the plurality of displacement sensors 55 and the plurality of hammer heads 56, so that more comprehensive data can be obtained. The device is connected to the displacement sensor 55 through the computer 57 and the electric wire, and the displacement data of the hammer head 56 in the asphalt is monitored and recorded in real time, so as to accurately calculate the hardness of the asphalt. In combination with the data of the plurality of sensors, the computer 57 can calculate the hardness value of the asphalt in real time and further analyze it, so as to make more accurate judgment and evaluation.

[0069] Workflow: First, place the asphalt sample in the storage barrel 4 of the device, which is located in the installation slot 3, for easy storage and management of the asphalt sample. The electric push rod 53 drives the cantilever 54 to vertically press down or push the hammer head 56 downward, so that the hammer head 56 contacts the asphalt sample. The hammer head 56 exerts a certain force at different positions through the cantilever 54, thereby producing indentations on the asphalt surface. The displacement sensors 55 are uniformly distributed at the bottom of the cantilever 54, which can monitor the displacement changes of each hammer head 56 in real time. Each sensor can detect the displacement change when the hammer head 56 contacts the asphalt surface, thereby determining the hardness of that position. Each displacement sensor 55 transmits real-time data to the computer 57 through wires, and the computer 57 receives and records the data of the displacement sensor 55 in real time. The computer 57 calculates the hardness values of the asphalt at different positions according to the displacement data provided by the sensors using a predetermined algorithm. By simultaneously detecting multiple positions with multiple hammer heads 56, more comprehensive hardness data can be obtained, which helps to evaluate the overall hardness characteristics of the asphalt sample. The computer 57 generates an asphalt hardness report based on the data from multiple positions, providing detailed information such as the average, minimum, and maximum hardness values. The data can be used to analyze whether the asphalt quality meets the standards and whether it is suitable for specific construction or use environments. In this way, the asphalt hardness detection can be more efficient and accurate, providing more precise data support.

[0070] As shown in Figure 1 and Figure 2 In this embodiment, the optimized support plate 51 is provided with a guide mechanism 6 to keep the cantilever 54 sliding smoothly, which includes:

[0071] Fixed plates 10761 are arranged on both sides of the upper part of the support plate 51;

[0072] Guide rods 62 are arranged on the fixed plates 10761;

[0073] Sliding sleeves 63 are slidingly arranged on the guide rods 62, and the sliding sleeves 63 are fixedly connected with the cantilevers 54.

[0074] In the technical solution, the fixed plates 10761 arranged on both sides of the support plate 51 firmly install the guide rod 62 on the support plate 51 by a fixed manner to form a stable movement track frame. The sliding sleeve 63 is arranged on the guide rod 62 and fixedly connected with the cantilever 54. Through the sliding cooperation of the sliding sleeve 63 and the guide rod 62, the cantilever 54 can stably slide up and down along the direction of the guide rod 62. During the hardness test, the electric push rod 53 drives the cantilever 54 to move along the axial direction of the guide rod 62. When the electric push rod 53 pushes the cantilever 54 to press down, the cantilever 54 keeps stable vertical movement by the cooperation of the sliding sleeve 63 and the guide rod 62 and does not deviate or tilt. The sliding contact between the sliding sleeve 63 and the guide rod 62 ensures that the cantilever 54 can smoothly move along the guide rod 62 under the premise of ensuring accuracy, so that the hammer head 56 uniformly applies pressure to different positions of the asphalt sample. The displacement sensor 55 captures the displacement data of the hammer head 56 in the asphalt sample by detecting the movement track of the cantilever 54, which is used to calculate the hardness value of the asphalt. During the hardness test, the displacement sensor 55 transmits data to the computer 57 in real time through the wire, and the computer 57 analyzes the hardness of the asphalt sample at different positions according to the data of the sensor. Due to the stable sliding of the cantilever 54, the data collected by the sensor is more stable and accurate, and does not deviate or have measurement error due to unstable movement of the cantilever 54. The computer 57 system generates an evaluation report of the hardness of the asphalt by collecting the data, which includes important information such as the hardness value at each position, the average hardness value, and the maximum and minimum hardness values. The user can evaluate the quality of the asphalt according to the report to determine whether it meets the standard and is suitable for a specific application environment. Through the accurate design of the guide mechanism 6, it is ensured that the movement of the cantilever 54 is stable and vertical, avoiding the influence of deviation or bending of the cantilever 54 on the hardness test accuracy. The stable pressing of the cantilever 54 can uniformly apply pressure to improve the accuracy of the hardness test.

[0075] Embodiment 2:

[0076] The embodiment provides an asphalt hardness detection device, which has the following technical features in addition to the technical solutions of the above-mentioned embodiments.

[0077] As shown in Figure 3 In this embodiment, the displacement sensor 55 is provided with a threaded section 7, the outer side of the threaded section 7 is provided with an external thread 71, the inside of the cantilever 54 is provided with an internal thread 72, and the external thread 71 on the threaded section 7 is threadedly connected with the internal thread 72 in the cantilever 54 to realize quick disassembly and replacement of the hammer head 56.

[0078] In the technical solution, the threaded connection design enables users to easily disassemble and replace the hammer head 56, reducing the need for tools and complex operations, saving time and labor costs. Through threaded connection, it can ensure that the hammer head 56 is firmly fixed on the displacement sensor 55 during use, avoiding the situation that the hammer head 56 is loose or not firm, ensuring test accuracy and reliability. Users can replace the hammer head 56 as needed according to different detection requirements or the wear condition of the hammer head 56, prolonging the service life of the equipment and ensuring that each test can be performed using the appropriate hammer head 56. Different hardness of asphalt samples may require different types of hammer heads 56, and threaded connection makes it more flexible to replace the hammer head 56, making it easier for the equipment to meet different detection requirements.

[0079] Workflow: When the hammer head 56 needs to be installed, the operator can align the threaded part of the hammer head 56 with the internal thread 72 inside the cantilever 54. By rotating the outer thread 71 segment 7 on the displacement sensor 55 clockwise, the outer thread 71 connects with the internal thread 72 inside the cantilever 54, thereby firmly fixing the hammer head 56 on the cantilever 54. When the hammer head 56 needs to be replaced, the operator only needs to rotate the outer thread 71 segment 7 on the displacement sensor 55 counterclockwise, and the outer thread 71 separates from the internal thread 72 of the cantilever 54, thereby easily disassembling the hammer head 56. The disassembled hammer head 56 can be cleaned, inspected or replaced, avoiding the difficulty of disassembly caused by traditional fixed methods. After the hammer head 56 is installed, the equipment follows the original workflow for hardness testing. The electric push rod 53 drives the cantilever 54 and the hammer head 56 to apply a certain pressure to the asphalt surface, and the displacement sensor 55 detects the displacement of the hammer head 56 on the asphalt surface in real time. The computer 57 system calculates the hardness value of the asphalt according to these data. If the hammer head 56 is worn or damaged during testing, the operator can quickly disassemble and replace the appropriate new hammer head 56 as needed to ensure the accuracy and reliability of the test. Threaded connection greatly simplifies the installation and disassembly process of the hammer head 56, and users can complete the replacement of the hammer head 56 within a few seconds, reducing unnecessary downtime and improving work efficiency. At the same time, threaded connection can ensure the stability of the hammer head 56 during testing, avoiding the impact on test accuracy due to loose hammer head 56, and ensuring the accuracy of hardness data.

[0080] Example 3:

[0081] The present embodiment provides an asphalt hardness detection device, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features.

[0082] As shown in Figure 1 , Figure 4 and Figure 5 , in the present embodiment, the storage bucket 4 is slidingly connected with the installation groove 3, the storage bucket 4 is provided with handles 8 at both ends of the outer side, and the storage bucket 4 is provided with universal wheels 9 at the bottom.

[0083] In this technical solution, casters 9 are provided at the bottom of the storage bin 4, allowing it to move freely in different directions. Operators can easily move it to the desired position without heavy lifting, reducing manual labor intensity. This is especially beneficial when frequent movement or adjustment of the equipment is required, effectively saving time and effort and improving work efficiency. The storage bin 4 is connected to the mounting slot 3 via a sliding connection, facilitating easy removal for replacement, cleaning, or replenishment. This improves equipment maintenance and operational efficiency. The sliding connection design also reduces the difficulty of disassembly and installation; operators can easily complete the task by gently pushing the bin, enhancing overall equipment maintenance convenience. A handle 8 is provided on the outside of the storage bin 4 for easy manual handling and operation, allowing for easy operation even in confined spaces.

[0084] Workflow: During the equipment preparation phase, the storage bin 4 is placed in the mounting slot 3. Because the mounting slot 3 and the storage bin 4 are connected by a sliding mechanism, the operator simply pushes or gently slides the storage bin 4 into the mounting slot 3. This sliding connection design eliminates the need for complex fixing steps, simplifying the installation process. The casters 9 at the bottom of the storage bin 4 allow it to roll easily on the ground. The operator can easily push the storage bin 4 and even move it freely in different directions. The handle 8 on the outside of the storage bin 4 provides a more convenient gripping method, especially when moving the storage bin 4; the operator can grasp the handle 8 to easily push and adjust the position of the storage bin 4.

[0085] When the storage hopper 4 needs to be replenished with materials (such as asphalt raw materials), the operator can simply slide the storage hopper 4 out of the mounting slot 3 for easy replenishment or cleaning. After cleaning, the storage hopper 4 can be easily placed back into the mounting slot 3 for continued operation. The storage hopper 4 is not frequently moved during use; it will only be moved or replaced as needed when materials need to be added or changed. After testing, the operator can slide the storage hopper 4 out of the equipment for easy material replacement or equipment cleaning. The casters 9 and handle 8 of the storage hopper 4 allow it to be quickly moved to the cleaning area, avoiding a complicated handling process.

[0086] like Figure 1 As shown, in this embodiment, the bottom of the substrate 1 is provided with a clamping mechanism 10 for positioning the storage bucket 4.

[0087] In this technical solution, the clamping mechanism 10 ensures that the storage bucket 4 is fixed in place during the hardness test, preventing the bucket from shifting or shaking, and ensuring the accuracy of the test results.

[0088] As Figure 1 and Figure 5 shown, in this embodiment, the optimized clamping mechanism 10 comprises:

[0089] brackets 101 are arranged at the left and right ends of the front side of the bottom of the base plate 1;

[0090] a fixed shaft 102 is arranged between the two brackets 101;

[0091] a sliding plate 103 is slidingly arranged at the two ends of the fixed shaft 102;

[0092] clamps 104 are arranged on the sliding plate 103, and the two clamps 104 are sleeved on the storage barrel 4;

[0093] a mounting bracket 105 is arranged on the bottom bracket 2;

[0094] a motor 106 is arranged on the mounting bracket 105;

[0095] a mounting plate is arranged at the bottom of the base plate 1;

[0096] a ball screw 108 is rotatably arranged on the mounting plate, and the ball screw 108 is connected with the output shaft of the motor 106;

[0097] a connecting plate 109 is arranged at the outer side of the rear end of the clamp 104, and the connecting plate 109 is threadedly connected with the ball screw 108.

[0098] In the technical solution, the user fills the asphalt sample into the storage barrel 4 and places the storage barrel 4 in the installation groove 3, and the storage barrel is located in the clamping mechanism 10 area at the bottom of the base plate 1. Then the motor 106 is started, and the ball screw 108 is connected with the output shaft of the motor 106 to provide power driving. As the ball screw 108 rotates, the connecting plate 109 moves along the circumferential direction of the ball screw 108, and drives the clamp 104 to move inward or outward, while the clamp 104 drives the sliding plate 103 to slide on the fixed shaft 102, and the sliding plate 103 and the fixed shaft 102 guide the clamp 104 to move more stably. The clamp 104 is automatically sleeved on the outside of the storage barrel 4, which ensures that the storage barrel 4 is fixed and does not move, ensures that the storage barrel 4 is accurately aligned with the detection area, and ensures that the clamp 104 can tightly clamp the storage barrel 4 to prevent it from shifting during the test. Once the storage barrel 4 is accurately clamped, the device enters the hardness detection mode. The specific detection process may involve testing the asphalt sample under certain pressure, temperature and other conditions, and the hardness test results will be obtained and recorded by other detection systems related to the device (such as a pressure head, a pressure sensor, a temperature control system, etc.). After the test is completed, the device will release the clamp 104 through the motor 106 and the ball screw 108 system to release the storage barrel 4 for the user to take out the sample. The asphalt hardness detection device can automatically complete the hardness detection process of the asphalt sample. The clamping mechanism 10 ensures the stability of the storage barrel 4 during the test through the precise control system, and the linkage design of the sliding plate 103, the ball screw 108, the motor 106 and the connecting plate 109 enables the device to efficiently and accurately clamp and position the storage barrel 4, thereby ensuring the reliability of the test results.

[0099] The embodiments of the present application are described above in combination with the drawings, and the embodiments and features in the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above specific embodiments, which are only illustrative and not limiting. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims, which are all within the protection scope of the present application.

Claims

1. An asphalt hardness detection apparatus, characterized by, Include: The substrate (1); Chassis (2), provided at the bottom of the substrate (1); Mounting groove (3), provided on the substrate (1), the mounting groove (3) extends from top to bottom to penetrate the substrate (1); Storage bucket (4), provided in the mounting groove (3), for placing asphalt; Hardness detection unit (5), provided on the substrate (1), for more comprehensive and accurate evaluation of asphalt hardness; The hardness detection unit (5) includes: Support plate (51), provided on the top of the substrate (1); Frame (52), provided on the support plate (51) by bolt connection; Electric push rod (53), provided on the frame (52); Cantilever (54), provided on the electric push rod (53); Displacement sensor (55), provided at the bottom of the cantilever (54), the displacement sensor (55) has a plurality of and is uniformly distributed; Hammer head (56), provided on the displacement sensor (55), by multiple hammer heads (56) can detect hardness data of multiple different positions at the same time; Computer (57), provided on the substrate (1), the computer (57) is connected with the displacement sensor (55) through the wire, the displacement sensor (55) real-time monitoring and recording the displacement data of the hammer head (56) in the asphalt sample, and then calculating the hardness value of the asphalt.

2. The bitumen hardness detection device according to claim 1, characterized in that The support plate (51) is provided with a guide mechanism (6) for keeping the cantilever (54) stable sliding, the guide mechanism (6) includes: Fixed plate (61), provided on both sides of the upper part of the support plate (51); Guide rod (62), provided on the fixed plate (61); Slip sleeve (63), slidingly provided on the guide rod (62), the slip sleeve (63) is fixedly connected with the cantilever (54).

3. The asphalt hardness detection device according to claim 1, characterized in that, The displacement sensor (55) is provided with a threaded section (7), the outer side of the threaded section (7) is provided with an external thread (71), the inside of the cantilever (54) is provided with an internal thread (72), the external thread (71) on the threaded section (7) is threadedly connected with the internal thread (72) in the cantilever (54), so as to realize the quick disassembly and replacement of the hammer head (56).

4. The asphalt hardness detection device of claim 1, wherein The storage bucket (4) is slidably connected with the mounting groove (3), the outer side of the storage bucket (4) is provided with a handle (8) at both ends, and the bottom of the storage bucket (4) is provided with a universal wheel (9).

5. The asphalt hardness detection device of claim 1, wherein The bottom of the substrate (1) is provided with a clamping mechanism (10) for positioning the storage bucket (4).

6. The asphalt hardness detection device of claim 5, wherein The clamping mechanism (10) includes: Support (101), provided on the bottom of the substrate (1) left and right sides of the front side; Fixed shaft (102), provided between the two support (101); Slide plate (103), slidingly provided on the fixed shaft (102) both ends; Clamp (104), provided on the slide plate (103), two clamps (104) are sleeved on the storage bucket (4); Mounting bracket (105), provided on the chassis (2); Motor (106), provided on the mounting bracket (105); Mounting plate (107), provided on the bottom of the substrate (1); A ball screw (108) is rotatably arranged on the mounting plate (107), and the ball screw (108) is connected with the output shaft of the motor (106); A connecting plate (109) is arranged at the rear end outside the clamp (104), and the connecting plate (109) is threadedly connected with the ball screw (108).

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