Device for detecting storage stability of modified asphalt

Abstract

The invention discloses a modified asphalt storage stability detection device, and belongs to the technical field of asphalt detection, the modified asphalt storage stability detection device comprises a detection box, a detection chamber is arranged in the detection box, and a decomposition material taking mechanism is arranged in the detection chamber of the detection box; the decomposition material taking mechanism comprises a first separation half cylinder, a second separation half cylinder, a first sliding arm, a second sliding arm, a first position adjusting screw sleeve, a second position adjusting screw sleeve, a bidirectional threaded lead screw and a position adjusting worm, the first separation half cylinder is arranged in the detection chamber of the detection box, and the second separation half cylinder is also arranged in the detection chamber of the detection box; through the arranged decomposition material taking mechanism, the difficulty that a modified asphalt sample adheres to the wall body of a container can be overcome, the purpose of automatic taking-out is achieved, and the first separation half cylinder and the second separation half cylinder are designed in a power separation mode, so that the sample taking-out difficulty can be reduced on the premise that the container is not damaged; meanwhile, the first separation half cylinder and the second separation half cylinder in a separated state also provide conditions for removing residual samples on the inner wall.

Description

Technical Field

[0001] The invention belongs to the technical field of asphalt detection, and in particular relates to a detection device for storage stability of modified asphalt. Background Art

[0002] Modified asphalt refers to adding various organic synthetic materials, inorganic materials and polymer materials to petroleum asphalt to improve the quality of asphalt, change its physical and chemical properties, make it suitable for different engineering fields, and better resist erosion and damage from the natural environment. According to different modification methods and application scenarios, modified asphalt can be divided into SBS modified asphalt, PE modified asphalt, PA modified asphalt, asphalt rubber and other types. Modified asphalt is widely used in pavement, roofing, asphalt waterproofing materials, industrial flooring and other fields. Its excellent waterproof, weather-resistant, durable performance and adaptability in different environments make it the first choice for high-quality construction and transportation engineering materials. At the same time, modified asphalt It also has broad application prospects in the fields of environmental protection and energy conservation. The stability of polymer modified asphalt directly affects the performance of modified asphalt. If segregation occurs in the modified asphalt, the modified asphalt will be unusable, causing great economic losses. The current method for testing stability is to test the segregation of modified asphalt. After heating the asphalt sample, pour it into a segregation tube and place it vertically in a 163°C oven for 48±1h. Then take it out and place it in a refrigerator to freeze for 4h. After freezing, take it out of the refrigerator and divide the asphalt in the segregation test tube into three parts: upper, middle and lower. Test the upper and lower softening points of the asphalt and calculate the difference between the upper and lower softening points. The difference between the upper and lower softening points is required to be no more than 2.5°C for qualified segregation.

[0003] However, the adhesion of the asphalt sample to the inner wall of the container makes it difficult to remove it from the test container. Before the softening point test under the traditional method, the test container must be destroyed to remove the sample. The operation of destroying the container to remove the sample is difficult, and the destruction of the container is not conducive to reuse. There are also operational safety hazards and the disadvantages of properly handling container fragments during the strong destruction process.

[0004] Therefore, a device for detecting the storage stability of modified asphalt is needed to solve the problems in the prior art that asphalt samples are inconvenient to take out from the test container and the traditional method of violently destroying the test container to take out the sample has operational safety risks and increases the loss of detection equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a detection device for storage stability of modified asphalt to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting storage stability of modified asphalt, comprising a detection box, a detection chamber is arranged inside the detection box, a decomposition and material taking mechanism is arranged in the detection chamber of the detection box, the decomposition and material taking mechanism comprises a first separation half-cylinder, a second separation half-cylinder, a first sliding arm, a second sliding arm, a first adjustment screw sleeve, a second adjustment screw sleeve, a bidirectional threaded screw and an adjustment worm, the first separation half-cylinder is arranged in the detection chamber of the detection box, the second separation half-cylinder is also arranged in the detection chamber of the detection box, the first sliding arm is fixed to the outer surface of the first separation half-cylinder, and the second sliding arm is fixed to the outer surface of the second separation half-cylinder Side surface, the first adjusting screw sleeve is fixed on the end of the first sliding arm away from the first separation half-cylinder, the second adjusting screw sleeve is fixed on the end of the second sliding arm away from the second separation half-cylinder, the adjusting worm is arranged below the first separation half-cylinder and the second separation half-cylinder, the two sections of the bidirectional threaded screw are respectively fixed on the two ends of the adjusting worm, the first separation half-cylinder and the second separation half-cylinder are provided with a lifting mechanism inside, the lifting mechanism includes a lifting support plate, a lifting screw and a positioning worm, the lifting support plate is arranged between the first separation half-cylinder and the second separation half-cylinder, the lifting worm wheel is arranged below the lifting support plate, and the lifting screw is fixed to the upper end of the lifting worm wheel.

[0007] It should be noted in the solution that a device base is fixed to the bottom of the detection box, a motion adjustment chamber is provided inside the device base, and a driving motor is fixed to one side surface of the device base.

[0008] It is further worth noting that two first rotating bearings are fixed on the inner walls on both sides of the equipment base, one end of one section of the bidirectional threaded screw is arranged at the first rotating bearing, and one end of the other section of the bidirectional threaded screw is fixed on the output shaft of the driving motor.

[0009] It should be further explained that the two sections of the bidirectional threaded screw are symmetrically distributed at both ends of the adjusting worm, the first adjusting screw sleeve and the second adjusting screw sleeve are threadedly connected to the two sections of the bidirectional threaded screw respectively, the first adjusting screw sleeve and the second adjusting screw sleeve are symmetrically distributed on both sides of the adjusting worm, and the first sliding arm and the second sliding arm are both slidably connected in the motion adjustment chamber of the equipment base.

[0010] As a preferred implementation, the positioning worm is meshingly connected with the lifting worm wheel, a second rotating bearing is embedded and fixed in the inner bottom wall of the detection box, and the lifting worm wheel is rotatably connected to the second rotating bearing.

[0011] As a preferred embodiment, a sealing sleeve is vertically fixed to the upper end surface of the lifting support plate, a lifting screw hole is opened at the center of the upper end surface of the lifting support plate, the lifting screw hole of the lifting support plate is threadedly connected to the lifting screw rod, a rotating seat is embedded and fixed at the upper end of the sealing sleeve, and the upper end of the lifting screw rod is rotatably connected to the rotating seat.

[0012] As a preferred embodiment, a lifting guide groove is provided on the upper end surface of the lifting support plate, two vertically arranged lifting guide posts are fixed to the inner bottom wall of the detection box, and the lifting guide groove of the lifting support plate is slidably connected to the lifting guide posts.

[0013] As a preferred embodiment, a refrigeration unit is arranged on the back of the detection box, the front end of the refrigeration unit extends into the inner cavity of the detection box, a cold air outlet is opened on the front end surface of the refrigeration unit, and electric heating rods are arranged on the inner walls on both sides of the detection box.

[0014] As a preferred embodiment, a control console is fixed to the front end surface of the detection box, a sealing cover plate is provided on the upper cover of the detection box, and a cover opening handle is fixed to the upper surface of the sealing cover plate.

[0015] Compared with the prior art, the device for detecting storage stability of modified asphalt provided by the present invention has at least the following beneficial effects:

[0016] By setting up a decomposition and material collection mechanism, the difficulty of modified asphalt samples sticking to the container wall can be overcome and the purpose of automatic removal can be achieved. The first separation half-cylinder and the second separation half-cylinder adopt a dynamic separation design to reduce the difficulty of sample removal without damaging the container. At the same time, the first separation half-cylinder and the second separation half-cylinder in a separated state also provide conditions for removing residual samples on the inner wall.

[0017] By setting up the lifting mechanism, during the separation process of the first separation half-cylinder and the second separation half-cylinder, the lifting support plate rises synchronously and applies a lifting force to the modified asphalt sample from the bottom, thereby further reducing the difficulty of removing the modified asphalt sample. In addition, when the first separation half-cylinder and the second separation half-cylinder are as far away from the lifting support plate as possible, a detection operation space can be provided for on-site softening point detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 This is a three-dimensional diagram of the overall structure of a detection device for storage stability of modified asphalt according to the present invention;

[0020] Figure 2 A three-dimensional diagram of the cross-sectional structure of a detection box of a detection device for storage stability of modified asphalt according to the present invention;

[0021] Figure 3 A three-dimensional diagram of the positioning worm structure of a detection device for storage stability of modified asphalt according to the present invention;

[0022] Figure 4 A three-dimensional diagram of a lifting worm gear structure of a device for detecting storage stability of modified asphalt according to the present invention;

[0023] Figure 5 A three-dimensional diagram of the cross-sectional structure of a sealing sleeve shell of a device for detecting storage stability of modified asphalt according to the present invention;

[0024] Figure 6 A three-dimensional diagram of the lifting screw structure of a device for detecting storage stability of modified asphalt according to the present invention;

[0025] Figure 7 A three-dimensional diagram of the lifting support plate structure of a device for detecting storage stability of modified asphalt according to the present invention;

[0026] Figure 8 This is a three-dimensional diagram of the first separated half-cylinder structure of a device for detecting storage stability of modified asphalt according to the present invention.

[0027] In the figure: 1. detection box; 2. detection room; 3. refrigeration unit; 4. cold air outlet; 5. electric heating rod; 6. sealing cover; 7. cover opening handle; 8. control console; 9. equipment base; 10. first separation half cylinder; 11. second separation half cylinder; 12. first sliding arm; 13. second sliding arm; 14. first adjusting screw sleeve; 15. second adjusting screw sleeve; 16. bidirectional threaded screw; 17. first rotating bearing; 18. driving motor; 19. adjusting worm; 20. lifting worm gear; 21. second rotating bearing; 22. lifting support plate; 23. lifting screw; 24. sealing casing; 25. rotating seat; 26. lifting guide groove; 27. lifting guide column; 28. lifting screw hole; 29. ​​motion adjustment chamber. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the embodiments.

[0029] See also Figure 1-8The present invention provides a storage stability detection device for modified asphalt, comprising a detection box 1, wherein a detection chamber 2 is arranged inside the detection box 1, and a decomposition and material taking mechanism is arranged in the detection chamber 2 of the detection box 1, and the decomposition and material taking mechanism comprises a first separation half cylinder 10, a second separation half cylinder 11, a first sliding arm 12, a second sliding arm 13, a first adjustment screw sleeve 14, a second adjustment screw sleeve 15, a bidirectional threaded screw 16 and a positioning worm 19, the first separation half cylinder 10 is arranged in the detection chamber 2 of the detection box 1, the second separation half cylinder 11 is also arranged in the detection chamber 2 of the detection box 1, the first sliding arm 12 is fixed to the outer surface of the first separation half cylinder 10, the second sliding arm 13 is fixed to the outer surface of the second separation half cylinder 11, the first adjustment screw sleeve 14, the second adjustment screw sleeve 15, the bidirectional threaded screw 16 and the positioning worm 19, The screw sleeve 14 is fixed to one end of the first sliding arm 12 away from the first separation half-cylinder 10, the second adjusting screw sleeve 15 is fixed to one end of the second sliding arm 13 away from the second separation half-cylinder 11, the adjusting worm 19 is arranged below the first separation half-cylinder 10 and the second separation half-cylinder 11, and the two sections of bidirectional threaded screws 16 are respectively fixed at the two ends of the adjusting worm 19. A lifting mechanism is arranged inside the first separation half-cylinder 10 and the second separation half-cylinder 11, and the lifting mechanism includes a lifting support plate 22, a lifting screw 23 and an adjusting worm 19. The lifting support plate 22 is arranged between the first separation half-cylinder 10 and the second separation half-cylinder 11, and the lifting worm wheel 20 is arranged below the lifting support plate 22. The lifting screw 23 is fixed to the upper end of the lifting worm wheel 20.

[0030] Further Figure 1 and Figure 2 As shown, it is worth explaining in detail that a device base 9 is fixed to the bottom of the detection box 1 , a motion adjustment chamber 29 is arranged inside the device base 9 , and a driving motor 18 is fixed to one side surface of the device base 9 .

[0031] Further Figure 2 As shown, it is worth explaining in detail that two first rotating bearings 17 are fixed to the inner walls on both sides of the equipment base 9, one end of a bidirectional threaded screw 16 is arranged at the first rotating bearing 17, and one end of the other bidirectional threaded screw 16 is fixed to the output shaft of the driving motor 18.

[0032] The present solution has the following working process: before use, the first separation half cylinder 10, the second separation half cylinder 11 and the lifting support plate 22 are closed to form a container for loading the modified asphalt sample. When in use, the electric heating rod 5 is first turned on from the control console 8 to heat the environment inside the detection box 1, so that the modified asphalt sample is heated and evenly melted in the container. After heating for a period of time, the refrigeration unit 3 is turned on to cool the environment inside the detection box 1 and freeze the modified asphalt sample. When it is necessary to remove the modified asphalt sample, the drive motor 18 is turned on, and the output end of the drive motor 18 drives the bidirectional threaded screw 16 to rotate at the first rotating bearing 17, and the thread of the bidirectional threaded screw 16 is connected to the first rotating bearing 17. The connected first adjusting screw sleeve 14 and the second adjusting screw sleeve 15 are moved closer to or farther from each other, so that the distance between the first separation half cylinder 10 and the second separation half cylinder 11 can be flexibly adjusted. When the first separation half cylinder 10 and the second separation half cylinder 11 are separated, they can be continuously separated from the frozen modified asphalt sample, so that the difficulty of the modified asphalt sample sticking to the container wall can be overcome and the purpose of automatic removal can be achieved. In addition, the first separation half cylinder 10 and the second separation half cylinder 11 adopt a dynamic separation design, which can reduce the difficulty of sample removal without damaging the container. At the same time, the first separation half cylinder 10 and the second separation half cylinder 11 in the separated state also provide conditions for removing residual samples on the inner wall.

[0033] During the dynamic separation process of the first separation half-cylinder 10 and the second separation half-cylinder 11, the rotating adjusting worm 19 drives the lifting worm wheel 20 to rotate at a fixed point, and the lifting screw 23 is vertically fixed at the upper end of the lifting worm wheel 20, so the rotating lifting screw 23 drives the lifting support plate 22 threadedly connected thereto to rise, so that during the separation process of the first separation half-cylinder 10 and the second separation half-cylinder 11, the lifting support plate 22 rises synchronously and applies a lifting force to the modified asphalt sample from the bottom, thereby further reducing the difficulty of removing the modified asphalt sample, and the first separation half-cylinder 10 and the second separation half-cylinder 11 are as far away from the lifting support plate 22 as possible to provide a detection operation space for on-site softening point detection, and the modified asphalt sample is evenly divided into three parts: upper, middle and lower, and the upper and lower softening points of the sample are detected, and the upper and lower softening point difference is calculated, and the upper and lower softening point difference is required to be no more than 2.5°C for separation to be qualified.

[0034] Further Figure 2 , Figure 3 and Figure 4 As shown, it is worth explaining in detail that the two sections of bidirectional threaded screws 16 are symmetrically distributed at both ends of the adjusting worm 19, the first adjusting screw sleeve 14 and the second adjusting screw sleeve 15 are respectively threadedly connected to the two sections of bidirectional threaded screws 16, the first adjusting screw sleeve 14 and the second adjusting screw sleeve 15 are symmetrically distributed on both sides of the adjusting worm 19, and the first sliding arm 12 and the second sliding arm 13 are both slidably connected in the motion adjustment chamber 29 of the equipment base 9.

[0035] Further Figure 3 As shown, it is worth explaining in detail that the positioning worm 19 is meshedly connected with the lifting worm wheel 20 , a second rotating bearing 21 is embedded and fixed in the inner bottom wall of the detection box 1 , and the lifting worm wheel 20 is rotatably connected to the second rotating bearing 21 .

[0036] Further Figure 6 and Figure 7 As shown, it is worth explaining in detail that a sealing sleeve 24 is vertically fixed to the upper end surface of the lifting support plate 22, a lifting screw hole 28 is opened at the center of the upper end surface of the lifting support plate 22, the lifting screw hole 28 of the lifting support plate 22 is threadedly connected to the lifting screw rod 23, a rotating seat 25 is embedded and fixed at the upper end of the sealing sleeve 24, and the upper end of the lifting screw rod 23 is rotatably connected to the rotating seat 25.

[0037] Further Figure 2 As shown, it is worth explaining in detail that a lifting guide groove 26 is opened on the upper end surface of the lifting support plate 22, and two vertically arranged lifting guide columns 27 are fixed to the inner bottom wall of the detection box 1, and the lifting guide groove 26 of the lifting support plate 22 is slidably connected to the lifting guide columns 27.

[0038] Further Figure 2 As shown, it is worth explaining in detail that a refrigeration unit 3 is arranged on the back of the detection box 1, the front end of the refrigeration unit 3 extends into the inner cavity of the detection box 1, a cold air outlet 4 is opened on the front face of the refrigeration unit 3, and electric heating rods 5 are arranged on the inner walls on both sides of the detection box 1.

[0039] Further Figure 1 As shown, it is worth to explain in detail that a control console 8 is fixed to the front end surface of the detection box 1 , a sealing cover plate 6 is provided on the upper cover of the detection box 1 , and a cover opening handle 7 is fixed to the upper surface of the sealing cover plate 6 .

[0040] In summary: the difficulty of modified asphalt samples sticking to the container wall can be overcome and the purpose of automatic removal can be achieved. The first separation half-cylinder 10 and the second separation half-cylinder 11 adopt a dynamic separation design, which can reduce the difficulty of sample removal without damaging the container. At the same time, the first separation half-cylinder 10 and the second separation half-cylinder 11 in the separated state also provide conditions for removing residual samples on the inner wall. During the separation process of the first separation half-cylinder 10 and the second separation half-cylinder 11, the lifting support plate 22 rises synchronously and applies a lifting force to the modified asphalt sample from the bottom, thereby further reducing the difficulty of removing the modified asphalt sample. After the first separation half-cylinder 10 and the second separation half-cylinder 11 are as far away from the lifting support plate 22 as possible, a detection operation space can be provided for on-site softening point detection.

[0041] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting storage stability of modified asphalt, comprising a detection box (1), characterized in that: The detection box (1) is provided with a detection chamber (2) inside, and a disassembly and material taking mechanism is provided in the detection chamber (2) of the detection box (1), and the disassembly and material taking mechanism comprises a first separation half cylinder (10), a second separation half cylinder (11), a first sliding arm (12), a second sliding arm (13), a first adjustment screw sleeve (14), a second adjustment screw sleeve (15), a bidirectional threaded lead screw (16) and an adjustment worm (19), wherein the first separation half cylinder (10) is arranged in the detection chamber (2) of the detection box (1), and the second separation half cylinder (11) is also arranged in the detection chamber (2) of the detection box (1), the first sliding arm (12) is fixed to the outer surface of the first separation half cylinder (10), the second sliding arm (13) is fixed to the outer surface of the second separation half cylinder (11), and the first adjustment screw sleeve (14) is fixed to the first sliding arm (12). The second adjusting screw sleeve (15) is fixed to one end of the second sliding arm (13) away from the second separating half-cylinder (11), the adjusting worm (19) is arranged below the first separating half-cylinder (10) and the second separating half-cylinder (11), the two sections of the bidirectional threaded screw (16) are respectively fixed at the two ends of the adjusting worm (19), and a lifting mechanism is arranged inside the first separating half-cylinder (10) and the second separating half-cylinder (11), the lifting mechanism comprises a lifting support plate (22), a lifting screw (23) and a positioning worm (19), the lifting support plate (22) is arranged between the first separating half-cylinder (10) and the second separating half-cylinder (11), the lifting worm wheel (20) is arranged below the lifting support plate (22), and the lifting screw (23) is fixed to the upper end of the lifting worm wheel (20).

2. The device for detecting storage stability of modified asphalt according to claim 1, characterized in that: A device base (9) is fixed to the bottom of the detection box (1), a motion adjustment chamber (29) is arranged inside the device base (9), and a drive motor (18) is fixed to one side surface of the device base (9).

3. The device for detecting storage stability of modified asphalt according to claim 2, characterized in that: Two first rotating bearings (17) are fixed to the inner walls on both sides of the equipment base (9), one end of a section of the bidirectional threaded screw (16) is arranged on the first rotating bearing (17), and one end of the other section of the bidirectional threaded screw (16) is fixed to the output shaft of the driving motor (18).

4. The device for detecting storage stability of modified asphalt according to claim 3, characterized in that: The two sections of the bidirectional threaded screw (16) are symmetrically distributed at both ends of the positioning worm (19); the first positioning screw sleeve (14) and the second positioning screw sleeve (15) are respectively threadedly connected to the two sections of the bidirectional threaded screw (16); the first positioning screw sleeve (14) and the second positioning screw sleeve (15) are symmetrically distributed on both sides of the positioning worm (19); and the first sliding arm (12) and the second sliding arm (13) are both slidably connected in a motion adjustment chamber (29) of the device base (9).

5. The device for detecting storage stability of modified asphalt according to claim 4, characterized in that: The positioning worm (19) is meshedly connected with the lifting worm wheel (20); a second rotating bearing (21) is embedded and fixed in the inner bottom wall of the detection box (1); and the lifting worm wheel (20) is rotatably connected to the second rotating bearing (21).

6. A detection device for storage stability of modified asphalt according to claim 5, characterized in that: A sealing sleeve (24) is vertically fixed to the upper end surface of the lifting support plate (22); a lifting screw hole (28) is provided at the center of the upper end surface of the lifting support plate (22); the lifting screw hole (28) of the lifting support plate (22) is threadedly connected to the lifting screw rod (23); a rotating seat (25) is embedded and fixed at the upper end of the sealing sleeve (24); and the upper end of the lifting screw rod (23) is rotatably connected to the rotating seat (25).

7. A detection device for storage stability of modified asphalt according to claim 6, characterized in that: The upper end surface of the lifting support plate (22) is provided with a lifting guide groove (26), and the inner bottom wall of the detection box (1) is fixed with two vertically arranged lifting guide pillars (27), and the lifting guide groove (26) of the lifting support plate (22) is slidably connected to the lifting guide pillars (27).

8. The device for detecting storage stability of modified asphalt according to claim 7, characterized in that: A refrigeration unit (3) is arranged at the back of the detection box (1), the front end of the refrigeration unit (3) extends into the inner cavity of the detection box (1), a cold air outlet (4) is provided on the front end surface of the refrigeration unit (3), and electric heating rods (5) are arranged on the inner walls of both sides of the detection box (1).

9. A detection device for storage stability of modified asphalt according to claim 8, characterized in that: A control console (8) is fixed to the front end surface of the detection box (1), a sealing cover plate (6) is provided on the upper cover of the detection box (1), and a cover opening handle (7) is fixed to the upper surface of the sealing cover plate (6).

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