Asphalt elongation detection equipment for highway construction

Abstract

The invention discloses asphalt extensibility detection equipment for highway construction, and relates to the technical field of asphalt extensibility detection. According to the asphalt extensibility detection equipment for road construction, through cooperation of a positioning sleeve rod and a sliding rod, after an asphalt sample is prepared, gas can be filled into the positioning sleeve rod through operation of a negative pressure device, so that side edge templates on the two sides and a bottom supporting plate are automatically separated from the asphalt sample; then, the asphalt sample moves downwards along with the movable frame and the fixed frame to be immersed into water, the extension degree of the asphalt sample is detected, compared with a traditional detection mode, the mold and the asphalt sample can be automatically separated, the immersion experiment and the extension degree experiment are sequentially conducted, and the operation convenience and the operation efficiency of the equipment are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of asphalt ductility detection, and particularly to an asphalt ductility detection device for highway construction. Background Art

[0002] Asphalt is a dark brown complex mixture composed of hydrocarbon compounds with different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid, mostly existing in the form of liquid or semi-solid petroleum, with a black surface and soluble in carbon disulfide and carbon tetrachloride. Referring to the Chinese patent with the publication number "CN112782008A", namely "An intelligent modified asphalt ductility detection device", this patent points out that when the existing asphalt ductility detector is in use, it is necessary to manually scrape off the specimen above the surface of the asphalt mold, and multiple groups of asphalt molds cannot be scraped off simultaneously, which is time-consuming and laborious. After the detection is completed, it is necessary to manually take out the asphalt mold from the water, with complex operations and easy to wet the ground, resulting in poor use effects. However, this device still has problems of poor operation convenience and low efficiency. Therefore, we propose an asphalt ductility detection device for highway construction to solve the above problems. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides an asphalt ductility detection device for highway construction, which solves the problems raised in the above background art.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: An asphalt ductility detection device for highway construction includes a machine body. A detection box is installed on the side of the machine body. Lifting frames are provided on both sides inside the detection box. One end of each lifting frame close to the machine body is fixedly installed with a fixed frame, and a moving frame is provided on the side of the fixed frame. The moving frame is slidably connected to the lifting frame. Plug rods are fixedly installed on the top surfaces of the moving frame and the fixed frame, and a mold body is assembled through the plug rods.

[0005] A positioning plate is fixedly installed on the side of the fixed frame close to the moving frame. A bottom support plate is provided above the positioning plate. The bottom support plate is slidably connected to the fixed frame, and a plurality of support springs are provided between the bottom support plate and the positioning plate. The bottom support plate is in contact with the bottoms of multiple mold bodies for sealing the bottoms of the mold bodies.

[0006] On both sides of the corresponding mold body, side templates are provided to block the sides of the mold body. A positioning sleeve rod is fixed on the top surface of the positioning plate. The end of the positioning sleeve rod penetrates through the bottom support plate and is slidably connected thereto. A sliding rod is slidably connected inside the positioning sleeve rod, and a positioning end is fixed at the end of the sliding rod. The positioning end is fixedly installed inside the corresponding side template to lift the side template. An annular frame communicated with each other is fixedly installed on the outer side of the positioning sleeve rod, and an elastic top piece is installed at the bottom of the annular frame to drive the bottom support plate to move downward and separate from the asphalt. The end of the positioning sleeve rod is connected with a ventilation pipeline;

[0007] A driving component is arranged inside the machine body to drive the moving frame to perform descending and translational operations.

[0008] Preferably, a plurality of through holes are formed inside both the positioning sleeve rod and the annular frame. A piston end is fixedly installed at one end of the sliding rod away from the positioning end. The piston end is slidably installed inside the positioning sleeve rod, and a return spring is fixedly installed between the piston end and the inside of the positioning sleeve rod.

[0009] Preferably, a measuring benchmark is fixedly installed at the top of one side of the lifting frame, and a pointer arm adapted to the measuring benchmark is fixedly installed on the top surface of the moving frame.

[0010] Preferably, a scraping push plate is slidably installed between the two lifting frames. A concave scraping blade is fixedly installed at the bottom of the scraping push plate. The concave scraping blade is flush with the top of the mold body to scrape off the excess asphalt. A driving cylinder is connected to the outside of the scraping push plate to drive the scraping push plate and the concave scraping blade to complete translational operations.

[0011] Preferably, a heating module is fixedly installed at the top of the concave scraping blade.

[0012] Preferably, the driving component includes a lifting cylinder and a driving cylinder. A driving frame is slidably connected inside the machine body. A driving screw rod engaged with each other is connected inside the driving frame to drive the driving frame to translate inside the machine body. There are two driving cylinders which are respectively installed between the driving frame and the moving frame, and there are two lifting cylinders which are respectively fixedly installed between the corresponding lifting frames and the machine body to drive the lifting frames to move downward inside the machine body.

[0013] Preferably, a plurality of limiting rods are fixedly installed inside the machine body. The ends of the limiting rods penetrate through the driving frame and are slidably connected thereto.

[0014] Preferably, a servo motor is fixedly installed on the outer side of the machine body. A coupling is provided between the output end of the servo motor and the end of the driving screw rod.

[0015] Preferably, a recycling component is provided on the outer side of the moving frame for recycling the cut asphalt. The recycling component includes a recycling frame. An adapter frame is fixedly installed on the outer side of the moving frame. The recycling frame is slidably connected to the adapter frame. A plurality of elastic drawstrings are fixed inside the adapter frame, and the end of the elastic drawstring is fixedly connected to the recycling frame.

[0016] Preferably, a counterweight plate is fixedly installed on the outer side of the recycling frame.

[0017] The present invention provides a highway construction asphalt ductility testing device. Compared with the prior art, it has the following beneficial effects:

[0018] (1) In this highway construction asphalt ductility testing device, through the cooperation of the positioning sleeve rod and the sliding rod, after the asphalt sample is prepared, the negative pressure device can be operated to fill the positioning sleeve rod with gas, so that the side templates and the bottom support plate on both sides are automatically separated from the asphalt sample. Then, as the asphalt sample moves down with the moving frame and the fixed frame and immerses in water, the ductility test of the asphalt sample is realized. Compared with the traditional testing method, it can automatically complete the separation operation of the mold and the asphalt sample, and then carry out the immersion and ductility experiments in sequence, further improving the operation convenience and working efficiency of the device.

[0019] (2) In this highway construction asphalt ductility testing device, through the setting of the recycling component, when the concave scraping blade cuts the cooled asphalt sample, the recycling frame can complete the recycling of the waste asphalt, preventing it from falling into the testing box body. And when operating, the recycling frame contacts the water surface, which can stretch the plurality of elastic drawstrings to prevent the recycling frame from immersing in water, improving the maintenance convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic cross-sectional structure diagram of the testing box body of the present invention;

[0022] Figure 3 is the present invention Figure 2 front view structure diagram;

[0023] Figure 4 is a schematic diagram of the lifting frame and the driving frame of the present invention;

[0024] Figure 5 is the present invention Figure 4 magnified structure diagram at A in;

[0025] Figure 6 is a schematic diagram of the fixed frame and the moving frame of the present invention;

[0026] Figure 7 Side view structural schematic diagram of the fixing frame and the moving frame of the present invention;

[0027] Figure 8 Structural schematic diagram of the mold body and the bottom support plate of the present invention;

[0028] Figure 9 Cross-sectional structural schematic diagram of the side template and the positioning sleeve rod of the present invention;

[0029] Figure 10 For the present invention Figure 9 Enlarged structural schematic diagram at position B in the present invention.

[0030] In the figure: 1, the body; 2, the detection box body; 3, the lifting frame; 301, the lifting cylinder; 4, the driving frame; 401, the limiting rod; 402, the driving screw rod; 403, the driving cylinder; 5, the scraping push plate; 501, the concave scraping piece; 6, the driving cylinder body; 7, the moving frame; 702, the connecting frame; 8, the measuring benchmark; 9, the pointer arm; 10, the recovery frame; 1001, the counterweight plate; 11, the fixing frame; 12, the mold body; 1201, the side template; 13, the positioning plate; 14, the bottom support plate; 15, the support spring; 16, the insertion rod; 17, the positioning sleeve rod; 1701, the annular frame; 17011, the elastic top piece; 17012, the through hole; 1702, the ventilation pipeline; 18, the sliding rod; 1801, the positioning end; 1802, the piston end; 1803, the return spring. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-10 , the present invention provides two technical solutions, specifically including the following embodiments:

[0033] Embodiment 1:

[0034] In the embodiment of the present invention, a bitumen elongation detection device for highway construction includes a body 1, a detection box body 2 is installed on the side of the body 1, lifting frames 3 are provided on both sides inside the detection box body 2, a fixing frame 11 is fixedly installed at one end of the lifting frame 3 close to the body 1, and a moving frame 7 is provided on the side of the fixing frame 11. The moving frame 7 is slidably connected to the lifting frame 3. Insertion rods 16 are fixedly installed on the top surfaces of the moving frame 7 and the fixing frame 11, and a mold body 12 is assembled through the insertion rods 16;

[0035] In an embodiment of the present invention, the moving frame 7 slides horizontally with the lifting frame 3. When the asphalt sample is prepared, the lifting frame 3 can descend to drive the moving frame 7 and the fixed frame 11 to move downward, so that the asphalt sample inside the mold body 12 enters the water. Then, the moving frame 7 slides horizontally along the lifting frame 3 to record the elongation of the asphalt sample;

[0036] In an embodiment of the present invention, a positioning plate 13 is fixedly installed on one side of the fixed frame 11 close to the moving frame 7. Above the positioning plate 13, there is a bottom support plate 14. The bottom support plate 14 is slidably connected to the fixed frame 11, and a plurality of support springs 15 are arranged between the bottom support plate 14 and the positioning plate 13. The bottom support plate 14 is in contact with the bottoms of a plurality of mold bodies 12, and is used to seal the bottoms of the mold bodies 12;

[0037] In an embodiment of the present invention, side templates 1201 are provided on both sides of the corresponding mold body 12, and are used to block the sides of the mold body 12. A positioning sleeve rod 17 is fixed on the top surface of the positioning plate 13. The end of the positioning sleeve rod 17 passes through the bottom support plate 14 and is slidably connected to it. A sliding rod 18 is slidably connected inside the positioning sleeve rod 17, and a positioning end 1801 is fixed at the end of the sliding rod 18. The positioning end 1801 is fixedly installed inside the corresponding side template 1201 and is used to lift the side template 1201. An annular frame 1701 that is interconnected is fixedly installed on the outside of the positioning sleeve rod 17, and an elastic top piece 17011 is installed at the bottom of the annular frame 1701, and is used to drive the bottom support plate 14 to move downward to separate from the asphalt. The end of the positioning sleeve rod 17 is connected to a ventilation pipe 1702;

[0038] In an embodiment of the present invention, refer to Figures 6-10 , the bottom support plate 14 and the side template 1201 are respectively used to block the bottom and the sides of the mold body 12 to form a notch for storing the sample. When injecting the asphalt sample, first apply a release agent to the inside of the notch for storing the sample, and then inject the asphalt sample into the notch. After the injection is completed, make the height of the sample slightly higher than the top of the mold body 12 until it cools, and then cut off the asphalt sample higher than the top of the mold body 12;

[0039] In an embodiment of the present invention, specifically, the release agent is prepared by mixing glycerol and talcum powder in a ratio of 2:1;

[0040] In an embodiment of the present invention, a driving assembly is provided inside the machine body 1, and is used to drive the moving frame 7 to perform descending and translational operations;

[0041] In the embodiment of the present invention, a plurality of through holes 17012 are provided inside the positioning sleeve rod 17 and the annular frame 1701. One end of the sliding rod 18 away from the positioning end 1801 is fixedly installed with a piston end 1802. The piston end 1802 is slidably installed inside the positioning sleeve rod 17, and a return spring 1803 is fixedly installed between the piston end 1802 and the inside of the positioning sleeve rod 17;

[0042] Specifically, a negative pressure device is provided inside the fixed frame 11. By operating the negative pressure device, gas can be filled into the positioning sleeve rod 17 through the ventilation pipe 1702. As the gas enters the inside of the positioning sleeve rod 17, the sliding rod 18 can be driven to move upward by the piston end 1802. At this time, with the cooperation of the positioning end 1801, the side templates 1201 on both sides of the mold body 12 can be driven to move upward to complete the separation from the asphalt sample;

[0043] Specifically, the negative pressure device is an existing device and is not shown in the figure;

[0044] Specifically, when the piston end 1802 moves upward inside the positioning sleeve rod 17, the air inside the positioning sleeve rod 17 can enter the inside of the annular frame 1701 through the through holes 17012. At this time, the elastic top piece 17011 at the bottom of the annular frame 1701 is stressed, and the bottom support plate 14 is pushed downward to separate from the asphalt sample. At this time, the support spring 15 is compressed;

[0045] In the embodiment of the present invention, through the cooperation of the positioning sleeve rod 17 and the sliding rod 18, when the asphalt sample is prepared, the negative pressure device can be operated to fill gas into the positioning sleeve rod 17, so that the side templates 1201 and the bottom support plate 14 on both sides are automatically separated from the asphalt sample. Then, the asphalt sample is immersed in water as the moving frame 7 and the fixed frame 11 move downward to realize the detection operation of the elongation of the asphalt sample. Compared with the traditional detection method, it can automatically complete the separation operation of the mold and the asphalt sample, and then carry out the immersion and elongation experiments in sequence, further improving the operation convenience and operation efficiency of the equipment;

[0046] In the embodiment of the present invention, a measuring benchmark 8 is fixedly installed at the top of the lifting frame 3 on one side, and a pointer arm 9 adapted to the measuring benchmark 8 is fixedly installed on the top surface of the moving frame 7;

[0047] In the embodiment of the present invention, both the measuring benchmark 8 and the pointer arm 9 are existing devices. The pointer arm 9 can move with the moving frame 7. Before moving, the pointer arm 9 needs to be adjusted to the zero position, and then the experimental values are recorded;

[0048] In an embodiment of the present invention, a scraping push plate 5 is slidably installed between the lifting frames 3 on both sides. A concave scraping blade 501 is fixedly installed at the bottom of the scraping push plate 5. The concave scraping blade 501 is flush with the top of the mold body 12 and is used to scrape off the excess asphalt. The outer side of the scraping push plate 5 is connected to a driving cylinder body 6, which is used to drive the scraping push plate 5 and the concave scraping blade 501 to complete the translation operation;

[0049] In an embodiment of the present invention, specifically, the scraping push plate 5 is slidably connected to the lifting frame 3 to ensure the scraping effect of the concave scraping blade 501 on the asphalt sample; specifically, the driving cylinder body 6 is slidably connected to the machine body 1;

[0050] Specifically, a heating module is fixedly installed at the top of the concave scraping blade 501. The heating module is an existing device and is used to heat the concave scraping blade 501 to ensure the scraping effect;

[0051] Specifically, the driving assembly includes a lifting cylinder 301 and a driving cylinder 403. A driving frame 4 is slidably connected inside the machine body 1. A driving screw 402 that meshes with each other is connected inside the driving frame 4 and is used to drive the driving frame 4 to translate inside the machine body 1. There are two driving cylinders 403 and they are respectively installed between the driving frame 4 and the moving frame 7. There are two lifting cylinders 301 and they are respectively fixedly installed between the corresponding lifting frames 3 and the machine body 1 and are used to drive the lifting frames 3 to move downward inside the machine body 1;

[0052] In an embodiment of the present invention, the lifting cylinder 301 and the driving cylinder 403 are both existing driving devices and will not be elaborated here;

[0053] In an embodiment of the present invention, when the asphalt sample is prepared, by retracting the lifting cylinder 301 and the driving cylinder 403, the lifting frame 3, the moving frame 7 and the fixed frame 11 can be driven to move downward, so that the asphalt sample is immersed in water. When this is achieved, by translating the driving frame 4, the moving frame 7 can be driven to translate along the direction of the lifting frame 3 to achieve an extended experiment;

[0054] Specifically, a plurality of limiting rods 401 are fixedly installed inside the machine body 1. The ends of the limiting rods 401 penetrate through the driving frame 4 and are slidably connected to it. The limiting rods 401 are used to ensure the running stability of the driving frame 4;

[0055] In an embodiment of the present invention, a servo motor is fixedly installed on the outer side of the machine body 1. A coupling is provided between the output end of the servo motor and the end of the driving screw 402. The servo motor is an existing forward and reverse motor.

[0056] Embodiment 2: Based on Embodiment 1, a recycling component is provided outside the moving frame 7 for recycling the cut asphalt. The recycling component includes a recycling frame 10. An adapter frame 702 is fixedly installed outside the moving frame 7. The recycling frame 10 is slidably connected to the adapter frame 702. Multiple elastic ropes are fixed inside the adapter frame 702, and the ends of the elastic ropes are fixedly connected to the recycling frame 10;

[0057] In the embodiment of the present invention, a counterweight plate 1001 is fixedly installed outside the recycling frame 10;

[0058] Specifically, when the lifting frame 3, the moving frame 7, and the fixed frame 11 move downward so that the asphalt sample is immersed in water, at this time, the recycling frame 10 can stretch the multiple elastic ropes by contacting the water surface, avoiding the recycling frame 10 from being immersed in water and improving the maintenance convenience of the equipment;

[0059] In the embodiment of the present invention, the elastic rope is an existing elastic cord, which is used to reset the recycling frame 10 and reinsert it above the adapter frame 702 when the lifting frame 3, the moving frame 7, and the fixed frame 11 move upward;

[0060] Specifically, through the setting of the counterweight plate 1001, the phenomenon that the recycling frame 10 has an excessively large inclination angle can be avoided;

[0061] In the embodiment of the present invention, specifically, the recycling frame 10 can float on the water surface to prevent the collected asphalt sample from falling into the detection box body 2;

[0062] In the embodiment of the present invention, specifically, the bottom of the concave scraping blade 501 is inclined. When scraping the convex asphalt sample, the cut asphalt sample can be pushed into the recycling frame 10 to complete the recycling operation.

[0063] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0064] The above has described an embodiment of the present invention in detail, but the described content is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention shall still fall within the scope covered by the present invention.

Claims

1. An asphalt ductility detection device for highway construction, comprising a machine body (1), and a detection box body (2) is installed on the side of the machine body (1), and is characterized in that: On both sides inside the detection box body (2), lifting frames (3) are provided. One end of the lifting frame (3) close to the machine body (1) is fixedly installed with a fixed frame (11). A moving frame (7) is arranged on the side of the fixed frame (11). The moving frame (7) is slidably connected to the lifting frame (3). Plug rods (16) are fixedly installed on the top surfaces of the moving frame (7) and the fixed frame (11), and a mold body (12) is assembled through the plug rods (16). A positioning plate (13) is fixedly installed on one side of the fixed frame (11) close to the moving frame (7). A bottom support plate (14) is arranged above the positioning plate (13). The bottom support plate (14) is slidably connected to the fixed frame (11). A plurality of support springs (15) are arranged between the bottom support plate (14) and the positioning plate (13). The bottom support plate (14) is attached to the bottoms of a plurality of mold bodies (12) for sealing the bottoms of the mold bodies (12). Side templates (1201) are arranged on both sides of the corresponding mold body (12) for blocking the sides of the mold body (12). A positioning sleeve rod (17) is fixed on the top surface of the positioning plate (13). The end of the positioning sleeve rod (17) penetrates through the bottom support plate (14) and is slidably connected to it. A sliding rod (18) is slidably connected inside the positioning sleeve rod (17). A positioning end (1801) is fixed to the end of the sliding rod (18). The positioning end (1801) is fixedly installed inside the corresponding side template (1201) for jacking up the side template (1201). An annular frame (1701) which is interconnected is fixedly installed on the outer side of the positioning sleeve rod (17). An elastic top piece (17011) is installed at the bottom of the annular frame (1701) for driving the bottom support plate (14) to move downwards to separate from the asphalt. A ventilation pipe (1702) is connected to the end of the positioning sleeve rod (17). A driving assembly is arranged inside the machine body (1) for driving the moving frame (7) to perform descending and translation operations.

2. The asphalt ductility testing device for highway construction according to claim 1, characterized in that: A plurality of through holes (17012) are formed inside both the positioning sleeve rod (17) and the annular frame (1701). A piston end (1802) is fixedly installed at one end of the sliding rod (18) away from the positioning end (1801). The piston end (1802) is slidably installed inside the positioning sleeve rod (17). A return spring (1803) is fixedly installed between the piston end (1802) and the inside of the positioning sleeve rod (17).

3. The asphalt ductility detection device for highway construction according to claim 1, wherein: A measuring benchmark (8) is fixedly installed at the top of one of the lifting frames (3). A pointer arm (9) which is adapted to the measuring benchmark (8) is fixedly installed on the top surface of the moving frame (7).

4. An asphalt ductility testing device for highway construction according to claim 1, characterized in that: A scraping push plate (5) is slidably installed between the two lifting frames (3). A concave scraping blade (501) is fixedly installed at the bottom of the scraping push plate (5). The concave scraping blade (501) is flush with the top of the mold body (12) for scraping off the excess asphalt. A driving cylinder body (6) is connected to the outside of the scraping push plate (5) for driving the scraping push plate (5) and the concave scraping blade (501) to complete translation operations.

5. An asphalt ductility detection device for highway construction according to claim 4, characterized in that: A heating module is fixedly installed at the top of the concave scraping blade (501).

6. The asphalt ductility testing device for highway construction according to claim 1, wherein: The driving assembly includes a lifting cylinder (301) and a driving cylinder (403). A driving frame (4) is slidably connected inside the machine body (1). A driving screw rod (402) that meshes with each other is connected inside the driving frame (4) and is used to drive the driving frame (4) to translate inside the machine body (1). There are two driving cylinders (403) which are respectively installed between the driving frame (4) and the moving frame (7). There are two lifting cylinders (301) which are respectively fixedly installed between the corresponding lifting frames (3) and the machine body (1) and are used to drive the lifting frames (3) to move downward inside the machine body (1).

7. An asphalt ductility detection device for highway construction according to claim 6, characterized in that: A plurality of limiting rods (401) are fixedly installed inside the machine body (1). The ends of the limiting rods (401) penetrate through the driving frame (4) and are slidably connected to it.

8. An asphalt ductility detection device for highway construction according to claim 6, characterized in that: A servo motor is fixedly installed on the outer side of the machine body (1). A coupling is provided between the output end of the servo motor and the end of the driving screw rod (402).

9. The asphalt elongation detection device for highway construction according to claim 1, wherein: A recycling assembly is provided on the outer side of the moving frame (7) and is used to recycle the cut asphalt. The recycling assembly includes a recycling frame (10). An adapter frame (702) is fixedly installed on the outer side of the moving frame (7). The recycling frame (10) is slidably connected to the adapter frame (702). A plurality of elastic ropes are fixed inside the adapter frame (702), and the ends of the elastic ropes are fixedly connected to the recycling frame (10).

10. The asphalt ductility detection device for highway construction according to claim 9, characterized in that: A counterweight plate (1001) is fixedly installed on the outer side of the recycling frame (10).

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