Phase change asphalt mixture temperature regulation performance evaluation device

Abstract

The utility model provides a phase change asphalt mixture temperature regulation performance evaluation device, which belongs to the technical field of performance evaluation devices and comprises a bearing support, an objective table, a connecting assembly, a protective cover, a first driving assembly, a track wheel and a second driving assembly. The objective table is fixedly arranged on the bearing support. The connecting assembly is arranged on the bearing support and provided with a moving part capable of moving in the first horizontal direction. The protective cover is arranged outside the objective table in a sleeving mode in the vertical direction, and the protective cover is in sliding connection with the moving part in the vertical direction. The first driving assembly is used for driving the protective cover to slide. The track wheel is located in the protective cover and connected with the protective cover, and the track wheel can roll in the first horizontal direction. The second driving assembly is used for driving the rutting wheel to roll. According to the phase change asphalt mixture temperature regulation performance evaluation device provided by the utility model, the problem that a test sample is inconvenient to put into the chamber and put on the objective table due to the limited space in the chamber is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of performance evaluation devices, and more specifically, relates to a phase-change asphalt mixture temperature regulation performance evaluation device. Background Art

[0002] In the prior art, in order to change the temperature-regulating properties of asphalt pavement, road workers will choose to add phase-change energy storage materials to the asphalt to prepare a phase-change asphalt mixture. The prepared phase-change asphalt mixture needs to be evaluated for its temperature-regulating properties. Chinese patent application number 2022101616674 discloses an asphalt mixture phase-change temperature-regulating evaluation system and method, which includes a chamber, a loading platform at the bottom of the chamber, a rutting wheel, etc. The test sample is placed on the loading platform for a rutting test. Due to the limited space in the chamber, it is inconvenient to place the test sample in the chamber and on the loading platform. Utility Model Content

[0003] The purpose of the utility model is to provide a phase change asphalt mixture temperature control performance evaluation device, aiming to solve the problem that it is inconvenient to put the test sample into the chamber and place it on the stage due to limited space in the chamber.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a phase-change asphalt mixture temperature control performance evaluation device, including a supporting bracket, a loading platform, a connecting assembly, a protective cover, a first drive assembly, a rutting wheel and a second drive assembly. The loading platform is fixed on the supporting bracket, and the loading platform is used to place the test sample. The connecting assembly is arranged on the supporting bracket, and the connecting assembly has a movable part that can move along a first horizontal direction. The protective cover is arranged on the outside of the loading platform in the vertical direction, and the protective cover is slidably connected to the movable part in the vertical direction. The first drive assembly is used to drive the protective cover to slide. The rutting wheel is located in the protective cover and is connected to the protective cover, and the rutting wheel can roll along the first horizontal direction. The second drive assembly is used to drive the rutting wheel to roll.

[0005] In one possible implementation, the connecting assembly further includes a guide rail and a first slider. The guide rail is arranged along the first horizontal direction and fixed to the supporting bracket. The first slider is slidably connected to the guide rail. The moving member is fixed to the first slider.

[0006] In one possible implementation, the connecting assembly further includes at least one first guide shaft, which is vertically arranged and fixed to the movable member; wherein a first fixing member is fixed to the side wall of the protective cover and slidably sleeved outside the first guide shaft.

[0007] In a possible implementation, the first drive assembly is fixed on the movable member, the first drive assembly has a piston rod that can be extended and retracted in a vertical direction, and the piston rod of the first drive assembly is fixedly connected to the first fixed member.

[0008] In one possible implementation, the support bracket includes a horizontally disposed support plate, and the phase-change asphalt mixture temperature control performance evaluation device further includes a second fixing member and a limiting shaft. The second fixing member is fixedly connected to the protective cover. The limiting shaft is vertically disposed and slidably extends through the second fixing member and the support plate.

[0009] In a possible implementation, the side wall of the limiting shaft has an anti-slip portion that protrudes outward and is located on the second fixing member.

[0010] In a possible implementation, the connecting assembly and the first fixing member are combined into a connecting unit. There are two connecting units, and the two connecting units are symmetrically arranged on both sides of the protective cover.

[0011] In a possible implementation, the phase-change asphalt mixture temperature control performance evaluation device further includes two limit blocks, which are respectively fixed at two ends of one of the guide rails to limit the sliding range of the first sliding block.

[0012] In one possible implementation, the phase-change asphalt mixture temperature control performance evaluation device further includes a second guide shaft, a second slider, and a connecting shaft. There is at least one second guide shaft, which is located inside the protective cover. The second guide shaft is arranged along the first horizontal direction, and both ends of the second guide shaft are fixedly connected to the protective cover. The second slider is located inside the protective cover, and the second slider is slidably sleeved outside the second guide shaft. The second slider has two limiting parts, and the two limiting parts are fitted with the rutting wheel from both sides. The connecting shaft is coaxially inserted into the rutting wheel and fixedly connected to the rutting wheel, and the connecting shaft can be rotatably inserted into the two limiting parts.

[0013] In one possible implementation, the second drive assembly includes a drive motor and two meshing gears. The drive motor is fixedly connected to the second slider. The two meshing gears are respectively sleeved and fixed on the connecting shaft and the output shaft of the drive motor.

[0014] In the embodiment of the present application, the first drive assembly drives the protective cover to move upward and away from the loading platform, and then drives the movable member to slide along the first horizontal direction, so that the protective cover reaches one side of the loading platform. Then, the test sample can be placed on the loading platform. The movable member is then driven to move and reset, and the first drive assembly drives the protective cover to move downward and fit onto the loading platform until the rutting wheel presses the test sample on the loading platform. Finally, the second drive assembly drives the rutting wheel to roll, thereby completing the rutting test. Since the protective cover can reach one side of the loading platform when the test sample is placed on the loading platform, the problem of the inconvenience of placing the test sample into the chamber and placing it on the loading platform due to limited space in the chamber can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the axonometric structure of a phase change asphalt mixture temperature control performance evaluation device provided by an embodiment of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of local A in FIG;

[0018] Figure 3 This is a schematic diagram of an axonometric cross-sectional structure of a phase change asphalt mixture temperature control performance evaluation device provided by an embodiment of the present utility model;

[0019] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of local B in FIG.

[0020] In the figure: 1. supporting bracket; 11. supporting plate; 2. loading platform; 31. moving part; 32. guide rail; 33. first slider; 34. first guide shaft; 4. protective cover; 5. first drive assembly; 6. rutting wheel; 7. second drive assembly; 71. drive motor; 72. gear; 8. first fixing member; 9. second fixing member; 10. limiting shaft; 101. anti-slip part; 110. limiting block; 120. second guide shaft; 130. second slider; 1301, limiting part; 140, connecting shaft; 150, electric heating assembly; 160, test sample. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] It should be further explained that the drawings and implementation methods of the present invention mainly describe the concept of the present invention. On the basis of this concept, some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems, etc. The specific forms and settings may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a familiar manner.

[0023] When an element is referred to as being “fixed to” or “disposed on” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] The directions or positional relationships indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, and "several" means one or more, unless otherwise specifically defined.

[0026] Please also refer to Figures 1 to 4, a phase-change asphalt mixture temperature control performance evaluation device provided by the present invention is now described. The phase-change asphalt mixture temperature control performance evaluation device comprises a supporting bracket 1, a loading platform 2, a connecting assembly, a protective cover 4, a first driving assembly 5, a rutting wheel 6 and a second driving assembly 7. The loading platform 2 is fixed on the supporting bracket 1, and the loading platform 2 is used to place the test sample 160. The connecting assembly is arranged on the supporting bracket 1, and the connecting assembly has a moving part 31 that can move along the first horizontal direction. The protective cover 4 is vertically sleeved on the outside of the loading platform 2, and the protective cover 4 is slidably connected to the moving part 31 along the vertical direction. The first driving assembly 5 is used to drive the protective cover 4 to slide. The rutting wheel 6 is located in the protective cover 4 and is connected to the protective cover 4, and the rutting wheel 6 can roll along the first horizontal direction. The second driving assembly 7 is used to drive the rutting wheel 6 to roll.

[0027] The present invention provides a phase change asphalt mixture temperature control performance evaluation device. Compared with the prior art, the first drive component 5 drives the protective cover 4 to move upward and away from the loading platform 2, and then drives the movable member 31 to slide along the first horizontal direction, so that the protective cover 4 reaches one side of the loading platform 2. Then, the test sample 160 can be placed on the loading platform 2. The movable member 31 is then driven to move and reset. The first drive component 5 drives the protective cover 4 to move downward and fit on the loading platform 2 until the rutting wheel 6 presses the test sample 160 on the loading platform 2. Finally, the second drive component 7 drives the rutting wheel 6 to roll, thereby completing the rutting test. Since the protective cover 4 can reach one side of the loading platform 2 when the test sample 160 is placed on the loading platform 2, the problem of the inconvenience of placing the test sample 160 in the chamber and on the loading platform 2 due to the limited space in the chamber can be avoided.

[0028] In the embodiment of the present application, the conventional electric heating assembly 150, temperature controller, and temperature probe can be fixedly installed in the protective cover 4, and the electric heating assembly 150 and the temperature probe are electrically connected to the temperature controller. The temperature controller controls the heating of the electric heating assembly 150 based on the temperature signal detected by the temperature probe, thereby causing the temperature inside the protective cover 4 to reach a preset temperature, and then the rutting test is carried out under the preset temperature conditions.

[0029] In some embodiments, the above-mentioned feature connection components can be used as follows Figure 1 and Figure 2 The structure shown. Figure 1 and Figure 2 The connecting assembly further includes a guide rail 32 and a first slider 33. The guide rail 32 is arranged along the first horizontal direction and fixed to the supporting bracket 1. The first slider 33 is slidably connected to the guide rail 32. The moving member 31 is fixed to the first slider 33. The moving member 31 is moved along the first horizontal direction by the sliding of the first slider 33 on the guide rail 32.

[0030] In this embodiment, the number of the first sliding blocks 33 in the connecting assembly may be at least two.

[0031] In some embodiments, the above-mentioned feature connection components can be used as follows Figure 1 The structure shown. Figure 1 The connecting assembly further includes a first guide shaft 34. There is at least one first guide shaft 34, which is vertically arranged and fixed to the moving member 31. A first fixing member 8 is fixed to the side wall of the protective cover 4 and slidably sleeved on the first guide shaft 34. The sliding engagement between the first fixing member 8 and the first guide shaft 34 achieves a vertical sliding connection between the protective cover 4 and the moving member 31.

[0032] In some embodiments, see Figure 1 The first drive assembly 5 is fixed to the moving member 31 and includes a piston rod that can be extended and retracted in the vertical direction. The piston rod of the first drive assembly 5 is fixedly connected to the first fixed member 8. The piston rod of the first drive assembly 5 drives the first fixed member 8 to move in the vertical direction by extending and retracting, thereby driving the protective cover 4 to slide in the vertical direction.

[0033] In this embodiment, the first driving assembly 5 can be a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

[0034] In some embodiments, see Figure 1 and Figure 3 , the supporting bracket 1 has a horizontally arranged supporting plate 11, and the phase change asphalt mixture temperature control performance evaluation device also includes a second fixing member 9 and a limiting shaft 10. The second fixing member 9 is fixedly connected to the protective cover 4. The limiting shaft 10 is vertically arranged, and the limiting shaft 10 is slidably penetrated into the second fixing member 9 and the supporting plate 11. Before the protective cover 4 moves upward, the limiting shaft 10 is first driven to slide upward to disengage from the supporting plate 11 and the second fixing member 9. When the protective cover 4 reaches the top of the loading platform 2 from one side of the loading platform 2, the limiting shaft 10 is first slid into the second fixing member 9 and the supporting plate 11, so that the first slider 33 can be restricted from continuing to slide, thereby ensuring that the protective cover 4 can be smoothly sleeved downward outside the loading platform 2.

[0035] In this embodiment, the guide rail 32 and the loading platform 2 can both be fixed on the supporting plate 11 .

[0036] In some embodiments, see Figure 3 The side wall of the limiting shaft 10 has an anti-slip portion 101 protruding outward and located on the second fixing member 9, thereby preventing the limiting shaft 10 from sliding downward and disengaging from the second fixing member 9. In this embodiment, the second fixing member 9 is located above the supporting plate 11.

[0037] In some embodiments, see Figure 1 The connecting assembly and the first fixing member 8 are combined into a connecting unit. There are two connecting units, which are symmetrically arranged on both sides of the protective cover 4, so that the protective cover 4 can move smoothly.

[0038] In some embodiments, see Figure 1 and Figure 2 The phase change asphalt mixture temperature control performance evaluation device further includes two limit blocks 110. The two limit blocks 110 are respectively fixed at the two ends of one of the guide rails 32 to limit the sliding range of the first slider 33, thereby preventing the first slider 33 from sliding off the guide rail 32.

[0039] In some embodiments, see Figure 3 and Figure 4 The phase change asphalt mixture temperature control performance evaluation device also includes a second guide shaft 120, a second slider 130 and a connecting shaft 140. There is at least one second guide shaft 120, which is located in the protective cover 4. The second guide shaft 120 is arranged along the first horizontal direction, and both ends of the second guide shaft 120 are fixedly connected to the protective cover 4. The second slider 130 is located in the protective cover 4, and the second slider 130 is slidably sleeved outside the second guide shaft 120. The second slider 130 has two limiting parts 1301, and the two limiting parts 1301 are fitted with the rutting wheel 6 from both sides. The connecting shaft 140 is coaxially inserted into the rutting wheel 6 and is fixedly connected to the rutting wheel 6. The connecting shaft 140 can be rotatably inserted into the two limiting parts 1301. The rutting wheel 6 is connected to the protective cover 4 through the second guide shaft 120, the second slider 130 and the connecting shaft 140. The tread wheel 6 can roll along the first horizontal direction by slidingly engaging the second slider 130 with the second guide shaft 120. The two limiting portions 1301 can limit the axial movement of the tread wheel 6 along the connecting shaft 140, and the rotation of the connecting shaft 140 can be converted into the rolling of the tread wheel 6.

[0040] In some embodiments, the second drive assembly 7 can be configured as follows: Figure 4 The structure shown. Figure 4 The second drive assembly 7 includes a drive motor 71 and two meshing gears 72. The drive motor 71 is fixedly connected to the second slider 130. The two meshing gears 72 are respectively mounted on the connecting shaft 140 and the output shaft of the drive motor 71. The output shaft of the drive motor 71 drives the connecting shaft 140 to rotate through the two meshing gears 72, thereby driving the rutting wheel 6 to roll.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A phase change asphalt mixture temperature control performance evaluation device, characterized in that: include: Support bracket; A loading platform, fixed on the supporting bracket, and used for placing the test sample on the loading platform; A connecting assembly is provided on the supporting bracket, wherein the connecting assembly has a moving part capable of moving along a first horizontal direction; A protective cover is vertically sleeved on the outside of the loading platform, and the protective cover is slidably connected to the moving part in the vertical direction; A first driving assembly, used for driving the protective cover to slide; a rutting wheel, located in and connected to the protective cover, wherein the rutting wheel is capable of rolling along the first horizontal direction; The second driving assembly is used to drive the rutting wheel to roll.

2. The phase change asphalt mixture temperature control performance evaluation device according to claim 1, characterized in that: The connection component further includes: a guide rail, arranged along the first horizontal direction and fixed on the supporting bracket; a first slider, slidably connected to the guide rail; Wherein, the moving part is fixed on the first sliding block.

3. The phase change asphalt mixture temperature control performance evaluation device according to claim 2, characterized in that: The connection component further includes: There is at least one first guide shaft, which is vertically arranged and fixed on the moving member; Wherein, a first fixing member is fixed on the side wall of the protective cover, and the first fixing member is slidably sleeved outside the first guide shaft.

4. The phase change asphalt mixture temperature control performance evaluation device according to claim 3, characterized in that: The first driving assembly is fixed on the moving member. The first driving assembly has a piston rod that can be extended and retracted in a vertical direction. The piston rod of the first driving assembly is fixedly connected to the first fixing member.

5. The device for evaluating the temperature control performance of phase change asphalt mixture according to claim 2, characterized in that: The supporting bracket has a horizontally arranged supporting plate, and the phase change asphalt mixture temperature control performance evaluation device also includes: a second fixing member, fixedly connected to the protective cover; The limiting shaft is vertically arranged and slides through the second fixing member and the supporting plate.

6. The device for evaluating the temperature control performance of phase change asphalt mixture according to claim 5, characterized in that: The side wall of the limiting shaft has an anti-slip portion that protrudes outward and is located on the second fixing member.

7. The device for evaluating the temperature control performance of phase change asphalt mixture according to claim 3, characterized in that: The connecting assembly and the first fixing member are combined into a connecting unit. There are two connecting units, and the two connecting units are symmetrically arranged on both sides of the protective cover.

8. The phase change asphalt mixture temperature control performance evaluation device according to claim 7, characterized in that: Also includes: Two limit blocks are respectively fixed at two ends of one of the guide rails to limit the sliding range of the first sliding block.

9. The device for evaluating the temperature control performance of phase change asphalt mixture according to claim 1, characterized in that: Also includes: at least one second guide shaft, the second guide shaft being located in the protective cover, the second guide shaft being arranged along the first horizontal direction, and both ends of the second guide shaft being fixedly connected to the protective cover; A second slider is located in the protective cover, the second slider is slidably sleeved outside the second guide shaft, and the second slider has two limiting parts, and the two limiting parts are in contact with the rutting wheel from both sides; The connecting shaft is coaxially arranged in the rutting wheel and fixedly connected to the rutting wheel. The connecting shaft is rotatably arranged in the two limiting parts.

10. The device for evaluating the temperature control performance of phase change asphalt mixture according to claim 9, characterized in that: The second drive assembly includes: a driving motor, fixedly connected to the second sliding block; Two meshing gears are respectively sleeved and fixed on the connecting shaft and the output shaft of the driving motor.

Images