Petroleum asphalt detection device

Abstract

The utility model discloses a petroleum asphalt detection device, which relates to the technical field of petroleum asphalt detection, and comprises a working table, the inner wall of the working table is rotatably connected with a positive and negative threaded rod, the outer side of the positive and negative threaded rod is in threaded connection with two groups of movable columns which are in bilateral symmetry design, and the top ends of the movable columns are provided with clamping assemblies. The device has the beneficial effects that the two groups of clamping assemblies can be accurately controlled to move reversely through the matching of the positive and negative threaded rods and the movable columns, a test mold is stretched at a stable rate, the fracture length is accurately recorded, and the setting of a sample and the storage of redundant asphalt are facilitated through the arrangement of the mold body and the material storage frame; the limiting frame and the scraping plate ensure that asphalt on the surface of the mold is flat, the detection accuracy is improved, the clamping arm is driven by the push rod to rotate, the clamping force and state can be flexibly adjusted, stable and reliable clamping is guaranteed, and powerful support is provided for petroleum asphalt plasticity detection.

Description

Technical Field

[0001] This utility model relates to the field of petroleum asphalt testing technology, and in particular to a petroleum asphalt testing device. Background Technology

[0002] Petroleum asphalt is a product of crude oil processing. At room temperature, it appears black or dark brown and exists as a viscous liquid, semi-solid, or solid. It is mainly composed of hydrocarbons and non-hydrocarbon derivatives soluble in trichloroethylene. Its composition and properties vary depending on the source of the crude oil and the processing method. Petroleum asphalt is hydrophobic, almost insoluble in water, and can adhere tightly to the surface of mineral materials, thus possessing good waterproof properties. In addition, it also has a certain degree of plasticity, allowing it to adapt to the deformation of materials or components. Petroleum asphalt is widely used in road construction, building waterproofing, pipeline corrosion protection, and other fields, and is an indispensable and important material in infrastructure construction.

[0003] In the field of petroleum asphalt performance testing, plasticity is one of the key indicators for evaluating its quality. Accurate measurement of the plasticity of petroleum asphalt is crucial for applications such as road construction and waterproofing projects. However, existing petroleum asphalt testing equipment lacks effective and flexibly adjustable fixing devices for mold fixation, making it difficult to stably fix molds of different specifications. During tensile testing, molds are prone to shaking or displacement, resulting in inaccurate test data that cannot truly reflect the plasticity of the asphalt. At the same time, in the asphalt sample preparation stage, the surface smoothness of the asphalt inside the mold is not handled meticulously enough, excess asphalt is not properly stored, and there is a lack of professional tools and stable guiding structures when smoothing the asphalt surface of the mold, resulting in an uneven asphalt surface. This introduces additional variables during tensile testing, affecting the accuracy of fracture length measurement, and consequently leading to a large deviation in the overall plasticity test results. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A petroleum asphalt testing device includes a workbench, on the inner wall of which is rotatably connected a positive and negative threaded rod, and on the outer side of which are threaded two sets of movable columns designed symmetrically. The top of each movable column is provided with a clamping assembly.

[0007] The top of the workbench is provided with a mold body, and storage frames are fixed on both sides of the mold body. Two sets of fixing plates are fixed on the top of the workbench. A limit frame is fixed on one side of the fixing plate through a connecting rod. A scraper is slidably connected inside the limit frame, and the bottom of the scraper is in contact with the top of the mold body.

[0008] The clamping assembly includes a mounting plate that is screwed to the top of the movable column. A cylinder is mounted on the inner wall of the mounting plate. A push rod is fixed to the piston rod of the cylinder, and both ends of the push rod are rotatably connected to the inner wall of the mounting plate through a rotating shaft. Two sets of clamping arms are rotatably connected to the inner wall of the mounting plate, and the outer side of the clamping arms is rotatably connected to one side of the push rod.

[0009] In a preferred embodiment of the petroleum asphalt testing device of this utility model, a motor is installed on the inner wall of the workbench, and a worm gear is fixed to the output end of the motor.

[0010] In a preferred embodiment of the petroleum asphalt testing device of this utility model, a worm gear is fixed on the outer side of the positive and negative threaded rod, and the outer side of the worm gear is meshed with the outer side of the worm.

[0011] In a preferred embodiment of the petroleum asphalt testing device of this utility model, the inner wall of the workbench is fixed with two sets of support plates, and the inner wall of the support plates is rotatably connected to the outer side of the positive and negative threaded rods. A limit rod is fixed on one side of the support plate, and a limit block is slidably connected to the outer side of the limit rod. One side of the limit block is fixedly connected to one side of the movable column.

[0012] In a preferred embodiment of the petroleum asphalt testing device of this utility model, a first slide rail is installed on one side of the workbench, a slider is fixed on one side of the movable column, and one side of the slider is slidably connected to the inner wall of the first slide rail.

[0013] In a preferred embodiment of the petroleum asphalt testing device of this utility model, two sliding rods are fixed to the inner wall of the limiting frame, and the outer side of the sliding rods is slidably connected to the inner wall of the scraper. A pull rod is installed on the top of the scraper by screws.

[0014] In a preferred embodiment of the petroleum asphalt testing device of this utility model, the inner wall of the limiting frame is equipped with two sets of second slide rails, and the bottom of the scraper is provided with two sets of rollers, with the outer side of the rollers rollingly connected to the inner wall of the second slide rails.

[0015] In summary, this utility model has the following beneficial effects:

[0016] By cooperating with the positive and negative threaded rods and the movable column, the two sets of clamping components can be precisely controlled to move in opposite directions, so as to stretch the mold at a stable rate and accurately record the fracture length. The mold body and the storage frame are designed to facilitate sample shaping and storage of excess asphalt. The limiting frame and scraper ensure that the asphalt on the mold surface is flat, improving the accuracy of the test. The clamping arm can be rotated by the push rod, which can flexibly adjust the clamping force and state, ensuring stable and reliable clamping, and providing strong support for the plasticity testing of petroleum asphalt. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a structural diagram of a petroleum asphalt testing device.

[0019] Figure 2 This is a structural diagram of the movable column of a petroleum asphalt testing device.

[0020] Figure 3 This is a structural diagram of the workbench of a petroleum asphalt testing device.

[0021] Figure 4 This is a structural diagram of the mold body of a petroleum asphalt testing device.

[0022] Figure 5 This is a structural diagram of the clamping assembly of a petroleum asphalt testing device.

[0023] The following are the labeling elements in the diagram: 1. Workbench; 2. Threaded rod (positive and negative); 3. Movable column; 4. Clamping assembly; 41. Mounting plate; 42. Cylinder; 43. Push rod; 44. Clamping arm; 5. Mold body; 6. Storage box; 7. Fixing plate; 8. Limiting frame; 9. Scraper; 10. Motor; 11. Worm gear; 12. Worm wheel; 13. Support plate; 14. Limiting rod; 15. Limiting block; 16. Slider; 17. First slide rail; 18. Slide rod; 19. Pull rod; 20. Second slide rail; 21. Roller. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1:

[0028] Reference Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a petroleum asphalt testing device, including a workbench 1. The inner wall of the workbench 1 is rotatably connected to a positive and negative threaded rod 2. The outer side of the positive and negative threaded rod 2 is threadedly connected to two sets of movable columns 3 with a left and right symmetrical design. The top of the movable column 3 is provided with a clamping assembly 4.

[0029] The workbench 1 serves as the basic support platform for the entire testing device, providing installation positions and stable support for other components. Through the positive and negative thread design of the positive and negative thread rod 2, when the positive and negative thread rod 2 rotates, it can cause the two sets of movable columns 3 connected by the outer thread to move in opposite directions at the same time. The two ends of the test mold are fixed by the clamping assembly 4, and the length at the time of fracture is recorded at a rate of 5cm / min±0.25cm / min.

[0030] The top of the workbench 1 is provided with a mold body 5. Both sides of the mold body 5 are fixed with storage boxes 6. The top of the workbench 1 is fixed with two sets of fixing plates 7. One side of the fixing plate 7 is fixed with a limit frame 8 through a connecting rod. The inside of the limit frame 8 is slidably connected with a scraper 9, and the bottom of the scraper 9 is in contact with the top of the mold body 5.

[0031] The mold body 5 is used to hold the petroleum asphalt sample. During the testing process, the asphalt sample is shaped inside the mold, and the plasticity of the asphalt is reflected by measuring parameters such as tensile length. The storage frame 6 is used to store excess petroleum asphalt. The fixing plate 7 is connected to the limiting frame 8 through the connecting rod, which serves to fix and support the limiting frame 8 and provide a stable installation base for the scraper 9. The limiting frame 8 is used to guide and restrict the movement of the scraper 9, ensuring that the scraper 9 can move smoothly and accurately on the top of the mold body 5 to achieve the scraping operation of the asphalt on the mold surface. The setting of the scraper 9 can scrape the petroleum asphalt on the top of the mold body 5 before testing, ensuring that the asphalt surface is flat, thereby making the test results more accurate and reliable.

[0032] The clamping assembly 4 includes a mounting plate 41 that is screwed to the top of the movable column 3. A cylinder 42 is mounted on the inner wall of the mounting plate 41. A push rod 43 is fixed to the piston rod of the cylinder 42. Both ends of the push rod 43 are rotatably connected to the inner wall of the mounting plate 41 through a rotating shaft. Two sets of clamping arms 44 are rotatably connected to the inner wall of the mounting plate 41. The outer side of the clamping arm 44 is rotatably connected to one side of the push rod 43.

[0033] The mounting plate 41 provides mounting positions for the cylinder 42 and the clamping arm 44. It is a basic structural part of the clamping assembly 4, serving to connect and support other components. The cylinder 42, as the power source for the clamping action, drives the push rod 43 to move through the extension and retraction of its piston rod. By controlling the operation of the cylinder 42, the clamping force and clamping state can be easily adjusted. Under the push of the piston rod of the cylinder 42, the linear motion of the cylinder 42 is converted into the swing of the push rod 43. The clamping arm 44 can rotate around the mounting point under the drive of the push rod 43, realizing the clamping and releasing of the petroleum asphalt sample. In terms of operation, it should be noted that cylinder 42 is composed of an air compressor, an air tank, a filter pressure reducing valve, a directional control valve, and a flow control valve. During use, the air compressor compresses ambient air to a set pressure and stores it in the air tank. The filter pressure reducing valve further purifies the air and stabilizes the pressure, then delivers it to the control valve through an air pipe. The directional control valve switches the airflow channel according to an electrical signal to determine the extension and retraction direction of cylinder 42. The flow control valve adjusts the airflow speed to control the movement speed of cylinder 42. Compressed air enters the rodless chamber or rodless chamber of cylinder 42, pushing the piston to move. The piston drives the piston rod to output linear reciprocating motion.

[0034] Example 2:

[0035] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0036] Specifically, a motor 10 is installed on the inner wall of the workbench 1, and a worm gear 11 is fixed to the output end of the motor 10.

[0037] The motor 10 drives the worm 11 to rotate, which in turn drives the worm wheel 12 meshing with the worm 11 to rotate, ultimately causing the positive and negative threaded rods 2 to rotate, thus moving the movable column 3. The worm 11 rotates under the drive of the motor 10, and through meshing with the worm wheel 12, it transmits the rotational motion to the worm wheel 12, thereby driving the positive and negative threaded rods 2 to rotate. This transmission method has self-locking properties, which can keep the position of the positive and negative threaded rods 2 stable when the motor 10 stops rotating, preventing the movable column 3 from moving on its own.

[0038] Specifically, a worm gear 12 is fixed to the outer side of the positive and negative threaded rod 2, and the outer side of the worm gear 12 is meshed with the outer side of the worm 11.

[0039] The worm 11 rotates under the drive of the motor 10. Through meshing with the worm wheel 12, it transmits the rotational motion to the worm wheel 12, which in turn drives the positive and negative threaded rods 2 to rotate.

[0040] Specifically, two sets of support plates 13 are fixed on the inner wall of the workbench 1, and the inner wall of the support plate 13 is rotatably connected to the outer side of the positive and negative threaded rod 2. A limit rod 14 is fixed on one side of the support plate 13, and a limit block 15 is slidably connected to the outer side of the limit rod 14. One side of the limit block 15 is fixedly connected to one side of the movable column 3.

[0041] The support plate 13 ensures the stability of the positive and negative threaded rods 2 during rotation, preventing them from bending or deforming due to uneven force, and ensuring that the positive and negative threaded rods 2 can rotate smoothly. The limit rod 14 and the limit block 15 work together to restrict the movement trajectory of the movable column 3, so that the movable column 3 can only move in a straight line along the direction of the limit rod 14, preventing the movable column 3 from deviating or rotating during movement, and ensuring the accuracy and stability of the movement of the clamping assembly 4.

[0042] Specifically, a first slide rail 17 is installed on one side of the workbench 1, and a slider 16 is fixed on one side of the movable column 3, with one side of the slider 16 slidably connected to the inner wall of the first slide rail 17.

[0043] The first slide rail 17 and the slider 16 work together to guide the movement of the movable column 3. Together with the limit rod 14 and the limit block 15, they further enhance the smoothness and straightness of the movement of the movable column 3, reduce friction and resistance during the movement, and improve the accuracy and reliability of the device.

[0044] Example 3:

[0045] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0046] Specifically, two sliding rods 18 are fixed to the inner wall of the limiting frame 8, and the outer side of the sliding rods 18 is slidably connected to the inner wall of the scraper 9. A pull rod 19 is installed on the top of the scraper 9 by screws.

[0047] The slide bar 18 is designed to provide further guidance and support for the movement of the scraper 9, ensuring the stability of the scraper 9 during movement, preventing the scraper 9 from tilting or shaking, and improving the leveling effect. The pull bar 19 allows the operator to easily pull the scraper 9 to move on the mold surface, thus achieving the leveling operation of asphalt.

[0048] Specifically, the inner wall of the limiting frame 8 is equipped with two sets of second slide rails 20, and the bottom of the scraper 9 is provided with two sets of rollers 21, with the outer side of the rollers 21 rollingly connected to the inner wall of the second slide rails 20.

[0049] The use of the second slide rail 20 and roller 21 can transform the sliding friction between the scraper 9 and the limit frame 8 into rolling friction, reducing friction and making the movement of the scraper 9 easier and smoother. This can reduce the labor intensity of the operator and also help improve the accuracy of the leveling operation.

[0050] In operation, the petroleum asphalt testing device first heats the asphalt to a fluid state, then pours it into the mold body 5. Excess asphalt flows into the storage box 6. After a period of cooling, the operator pulls the scraper 9 via the pull rod 19. Guided by the slide rod 18 and with the rolling cooperation of the second slide rail 20 and the roller 21, the scraper 9 moves smoothly on the top of the mold body 5, smoothing the asphalt surface. The asphalt mold is then placed in a water bath at 5℃±0.5℃ for 1.5 hours. After removal, the excess is removed with a hot knife. The motor 10 is then started, driving the worm gear 11 to rotate. The worm gear 11 meshes with the worm wheel 12, transmitting the rotational motion to the worm wheel 12, which in turn drives the positive and negative threaded rod 2 to rotate. When the positive and negative threaded rod 2 rotates, due to its positive and negative thread design, the outer thread... Under the combined action of the limiting rod 14, the limiting block 15, the first slide rail 17, and the slider 16, the two sets of movable columns 3 move in opposite directions in a straight line. The clamping assembly 4 at the top of the movable column 3 moves accordingly. The cylinder 42 works, and its piston rod extends and retracts, driving the push rod 43 to move. The push rod 43 drives the clamping arm 44 to rotate around the installation point. Then, the construction personnel manually place the petroleum asphalt between the two sets of clamping arms 44 and fix the two ends of the petroleum asphalt test block through the clamping arms 44. After that, the motor 10 is started again, and the position of the movable column 3 is adjusted so that the clamping assembly 4 stretches the asphalt sample at a rate of 5cm / min ± 0.25cm / min until the sample breaks. The length at the time of breakage is recorded. The plasticity of the asphalt is reflected by measuring parameters such as the tensile length.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A petroleum asphalt testing device, comprising a workbench (1), characterized in that: The inner wall of the workbench (1) is rotatably connected with a positive and negative threaded rod (2), and the outer side of the positive and negative threaded rod (2) is threaded with two sets of movable columns (3) designed symmetrically on the left and right. The top of the movable column (3) is provided with a clamping assembly (4). The top of the workbench (1) is provided with a mold body (5), and storage frames (6) are fixed on both sides of the mold body (5). Two sets of fixing plates (7) are fixed on the top of the workbench (1). A limit frame (8) is fixed on one side of the fixing plate (7) through a connecting rod. A scraper (9) is slidably connected inside the limit frame (8), and the bottom of the scraper (9) is in contact with the top of the mold body (5). The clamping assembly (4) includes a mounting plate (41) that is screwed to the top of the movable column (3). A cylinder (42) is mounted on the inner wall of the mounting plate (41). A push rod (43) is fixed to the piston rod of the cylinder (42). Both ends of the push rod (43) are rotatably connected to the inner wall of the mounting plate (41) through a rotating shaft. Two sets of clamping arms (44) are rotatably connected to the inner wall of the mounting plate (41). The outer side of the clamping arm (44) is rotatably connected to one side of the push rod (43).

2. The petroleum asphalt testing device as described in claim 1, characterized in that: A motor (10) is installed on the inner wall of the workbench (1), and a worm gear (11) is fixed at the output end of the motor (10).

3. The petroleum asphalt testing device as described in claim 2, characterized in that: A worm gear (12) is fixed to the outside of the positive and negative threaded rod (2), and the outside of the worm gear (12) is meshed with the outside of the worm (11).

4. The petroleum asphalt testing device as described in claim 1, characterized in that: The inner wall of the workbench (1) is fixed with two sets of support plates (13), and the inner wall of the support plate (13) is rotatably connected to the outer side of the positive and negative thread rod (2). A limit rod (14) is fixed on one side of the support plate (13), and a limit block (15) is slidably connected to the outer side of the limit rod (14), and one side of the limit block (15) is fixedly connected to one side of the movable column (3).

5. The petroleum asphalt testing device as described in claim 1, characterized in that: A first slide rail (17) is installed on one side of the workbench (1), and a slider (16) is fixed on one side of the movable column (3), and one side of the slider (16) is slidably connected to the inner wall of the first slide rail (17).

6. The petroleum asphalt testing device as described in claim 1, characterized in that: The inner wall of the limiting frame (8) is fixed with two sliding rods (18), and the outer side of the sliding rods (18) is slidably connected to the inner wall of the scraper (9). The top of the scraper (9) is fitted with a pull rod (19) by screws.

7. The petroleum asphalt testing device as described in claim 1, characterized in that: The inner wall of the limiting frame (8) is equipped with two sets of second slide rails (20), and the bottom of the scraper (9) is provided with two sets of rollers (21), and the outer side of the rollers (21) is in rolling connection with the inner wall of the second slide rails (20).

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