Differential temperature controllable steel base asphalt simulation sample preparation device

Abstract

This utility model relates to the field of building material testing technology, and more particularly to a temperature-differential controllable steel-based asphalt simulation sample preparation device, comprising a first chamber, a second chamber, a transfer mechanism, and a temperature-regulating mechanism. The transfer mechanism carries a material container for supporting a steel substrate, and is used to move the material container between the first and second chambers. A temperature-regulating mechanism is located in the second chamber, and a temperature-regulating receiving platform for receiving the material container is located above the temperature-regulating mechanism. The transfer mechanism has an extended state and a retracted state. When the transfer mechanism is in the extended state, the material container is located in the second chamber to regulate the temperature of the material container and the steel substrate it supports. When the transfer mechanism is in the retracted state, it is located in the first chamber to receive the material. This utility model can achieve pre-temperature regulation of the material container and the steel substrate it supports, thereby creating a temperature difference working condition, which can better simulate the positive and negative temperature difference working conditions in actual engineering.

Description

Technical Field

[0001] This utility model relates to the field of building material testing technology, and in particular to a temperature-differential controllable steel-based asphalt simulation sample preparation device. Background Technology

[0002] During the service life of steel bridge deck pavement systems, the interlayer bonding performance is affected by factors such as the temperature of the steel substrate and the ambient temperature. Because steel has a much higher thermal conductivity than asphalt mixtures and air, there is usually a significant difference between the temperature of the steel bridge deck and the surrounding environment in actual engineering projects: the steel plate temperature can be significantly higher than the ambient temperature under summer sunlight, and the steel plate temperature often drops faster than the ambient temperature in low-temperature winter environments. Therefore, to accurately reproduce the actual service state of the pavement layer and obtain bonding performance data that better reflects engineering realities, it is necessary to independently control the temperature of the steel substrate and the ambient temperature during the experiment.

[0003] Currently, the common method for conducting environmental simulation tests in the industry is to place the formed steel strip substrate as a whole in a constant temperature and humidity chamber, and uniformly adjust the air temperature inside the chamber to bring the specimen to the target environmental conditions. The drawback of this approach is that after the specimen gradually reaches thermal equilibrium with the ambient air, the temperature of the steel substrate will change synchronously with the ambient temperature. Since independent target values ​​cannot be set for either, it is difficult to simulate the temperature difference between the steel substrate and the environment that is commonly encountered in engineering. The test conditions deviate from actual service scenarios, and the engineering reference value of the test results is limited. Utility Model Content

[0004] The purpose of this invention is to provide a temperature-controllable steel-based asphalt simulation sample preparation device to alleviate the technical problem that existing simulation devices cannot simulate the positive and negative temperature difference conditions between steel plates and the atmospheric environment in actual engineering projects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A temperature-differential controllable steel-based asphalt simulation sample preparation device includes a first chamber, a second chamber, a transfer mechanism, and a temperature control mechanism; The transfer mechanism has a transfer platform for carrying a material container, the material container for carrying a steel base plate, and the transfer mechanism for moving the material container between the first chamber and the second chamber. The second chamber is provided with the temperature regulating mechanism, and a temperature regulating receiving platform is provided above the temperature regulating mechanism for contacting the bottom of the material container; in the free state where the temperature regulating receiving platform is not carrying the material container, the temperature regulating receiving platform avoids the transfer bearing platform and the moving path of the material container when entering the second chamber, so as to avoid the transfer bearing platform or the material container from colliding with the temperature regulating receiving platform; The transfer mechanism has an extended state and a retracted state; When the transfer mechanism is in the extended state, the material container is located in the second chamber and is in corresponding contact with the temperature-regulating receiving platform to regulate the temperature of the material container and the steel base plate it supports. When the transfer mechanism is in the retracted state, the material container is located in the first chamber to receive materials.

[0006] Furthermore, the transfer mechanism includes a drive unit and a support unit; the drive unit includes a drive motor, a screw connected to the drive motor, and a guide rod arranged parallel to the screw; the support unit is threadedly connected to the screw, and the support unit is used to carry the material container and moves along the direction of the guide rod under the drive of the drive motor.

[0007] Furthermore, the supporting part includes a left wing plate, a right wing plate, and a back plate. The left wing plate and the right wing plate are arranged opposite to each other, and horizontally extending extension plates are respectively provided on their inner sides. The extension plates form the transfer support platform, which is used to carry the material container. The back plate connects the left wing plate and the right wing plate and extends outward. The portion of the back plate that protrudes from the left wing plate is a first protrusion, and the screw passes through the first protrusion.

[0008] Furthermore, the portion of the back plate that protrudes from the right wing plate is a second protrusion; the guide rod passes through the second protrusion; the guide rod is arranged parallel to the screw to restrict the rotation of the bearing part and maintain linear motion.

[0009] Furthermore, the drive unit also includes a support plate, and the ends of the drive motor and the guide rod are both mounted on the support plate.

[0010] Furthermore, it also includes a pressurizing mechanism, which includes a cylinder, a support for a piston rod connected to the cylinder, and a pressure plate connected below the support; the pressure plate is used to apply molding pressure to the material in the material container in a vertical direction.

[0011] Furthermore, a partition plate is provided between the first chamber and the second chamber, and a partition door is provided on the partition plate. The partition door is opened by the material container or the transfer mechanism and automatically resets and closes after the external force is removed.

[0012] Furthermore, the temperature control mechanism includes a temperature regulating section, a lifting spring disposed below the temperature regulating section, and a base disposed below the lifting spring; the temperature regulating receiving platform is disposed above the temperature regulating section, and the lifting spring is used to provide vertical elastic support to the temperature regulating section and the temperature regulating receiving platform, so that the temperature regulating receiving platform forms a close contact with the bottom of the material container; the temperature regulating section is used to heat or cool the material container and the steel base plate supported inside it.

[0013] Furthermore, it also includes a feeding mechanism, which is disposed above the first chamber and includes a feeding port, an air inlet, and an exhaust port.

[0014] Furthermore, it also includes a frame, on which both the feeding mechanism and the pressurizing mechanism are slidably disposed.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: This invention, by setting up a first chamber and a second chamber that are separated from each other, and cooperating with a transfer mechanism that can reciprocate between the two chambers, allows the material container carrying the steel base plate to be pre-temperature regulated independently in the second chamber before returning to the first chamber for feeding and molding. The temperature regulation mechanism in the second chamber can heat or cool the material container and the steel base plate it carries, so that the steel base plate reaches the preset temperature before feeding and molding, and a temperature difference is formed between the steel base plate and the molding environment in the first chamber environment. This can simulate the positive temperature difference condition where the steel base plate is higher than the ambient temperature in engineering, and also simulate the negative temperature difference condition where the steel base plate is lower than the ambient temperature, thereby improving the realism of the specimen preparation and the engineering reference value of the test results.

[0016] Meanwhile, by allowing the temperature-regulating receiving platform to avoid the movement path of the transfer platform and the material container when entering the second chamber in a free state, this utility model can prevent the material container from colliding with the temperature-regulating receiving platform when entering the second chamber with the transfer mechanism, ensuring that the material container can move smoothly to the corresponding position of the temperature-regulating receiving platform; after the material container is in place, the temperature-regulating receiving platform forms a close contact with the bottom of the material container under the elastic support of the lifting spring, thereby improving the heat transfer stability during the temperature regulation process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of the temperature-controllable steel-based asphalt simulation sample preparation device provided for the embodiments of this utility model; Figure 2 A schematic diagram of the transfer mechanism in the retracted state in the temperature difference controllable steel-based asphalt simulation sample preparation device provided for the embodiments of this utility model. Figure 3 A schematic diagram of the transfer mechanism in the extended state of the temperature difference controllable steel-based asphalt simulation sample preparation device provided for the embodiments of this utility model; Figure 4 A schematic diagram of the overall structure of the transfer mechanism in the temperature-differential controllable steel-based asphalt simulation sample preparation device provided for the embodiments of this utility model; Figure 5 This is a schematic diagram of the load-bearing part in the transfer mechanism; Figure 6 This is a side view of the temperature control mechanism; Figure 7 This is an exploded view of the pressurization mechanism; Figure 8 This is a schematic diagram of the partition plate structure; Figure 9 This is a schematic diagram of the feeding mechanism.

[0019] icon: 001 - First chamber; 002 - Second chamber; 100 - Transfer agency; 110-Drive unit; 111-Drive motor; 112-Screw; 113-Guide rod; 114-Support plate; 120 - Load-bearing part; 121 - Left wing plate; 122 - Right wing plate; 123 - Back plate; 1231 - First protrusion; 1232 - Second protrusion; 130 - Guide plate; 200 - Temperature control mechanism; 210 - Temperature regulation section; 220 - Lifting spring; 230 - Base; 240 - Support column; 300 - Pressurization mechanism; 310 - Cylinder; 320 - Support; 330 - Pressure plate; 400 - Divider panel; 410 - Divider door; 500 - Feeding mechanism; 510 - Feed inlet; 520 - Air inlet; 530 - Exhaust outlet; 600-Framework. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the following embodiments are only used to explain the present invention and are not intended to limit the scope of protection of the present invention; all equivalent substitutions or modifications made under the concept of the present invention should fall within the scope of protection of the present invention.

[0021] In this embodiment, as Figures 1 to 9 As shown, the temperature-controllable steel-based asphalt simulation sample preparation device includes a first chamber 001, a second chamber 002, a transfer mechanism 100, a temperature control mechanism 200, a pressurization mechanism 300, a partition plate 400, a feeding mechanism 500, and a frame 600.

[0022] The first chamber 001 and the second chamber 002 are preferably enclosed chamber structures arranged side by side, separated by a partition plate 400. The first chamber 001 is mainly used for material addition, specimen molding, and short-term curing, while the second chamber 002 is mainly used for independent temperature control of the material container and the steel base plate.

[0023] The transfer mechanism 100 is used to drive the material container to reciprocate between the first chamber 001 and the second chamber 002. The material container is a support container or mold used to support the steel base plate, and it can be set into a rectangular, circular or other standardized structure according to the actual test needs. The material container moves along a predetermined trajectory under the support of the transfer mechanism 100 to complete the operation process of "pre-temperature adjustment in the second chamber and material feeding and molding in the first chamber".

[0024] After entering the second chamber 002, the material container moves to the corresponding position on the temperature-regulating receiving platform and makes corresponding contact with it. Since the temperature-regulating receiving platform avoids the transfer platform and the movement path of the material container when it enters the second chamber in its free state without carrying the material container, the material container will not collide with the temperature-regulating receiving platform due to its excessive height when it enters the second chamber 002 with the transfer mechanism 100. Specifically, the front end of the material container is provided with an upwardly inclined guide plate 130, and the side of the temperature-regulating receiving platform is provided with a receiving column 240 that cooperates with the guide plate. Under the pressure of the guide plate 130, the receiving column 240 will drive the temperature-regulating receiving platform downwards, and the material container will enter above the temperature-regulating receiving platform under the guidance of the guide plate 130, thereby avoiding collision between the material container and the temperature-regulating receiving platform. After the material container reaches the predetermined position, the temperature regulating receiving platform, under the elastic support of the lifting spring 220, remains in contact with or adheres to the bottom of the material container, thereby achieving temperature regulation of the material container and the steel base plate.

[0025] Inspection doors or observation windows can be installed on the top of both the first chamber 001 and the second chamber 002 to facilitate observation and maintenance of the internal condition by operators. Preferably, the observation window is made of heat-resistant transparent material and is installed with a sealing ring to reduce heat leakage. Leveling feet can be installed at the bottom of the chamber to ensure the stability of the entire machine during installation.

[0026] In this embodiment, the transfer mechanism 100 includes a drive unit 110 and a support unit 120. The drive unit 110 includes a drive motor 111, a screw 112, a guide rod 113, and a support plate 114. The drive motor 111 is preferably a stepper motor or a servo motor to achieve stable and controllable displacement drive. The output shaft of the drive motor 111 is connected to the screw 112, which is preferably a ball screw or a trapezoidal screw to improve transmission efficiency and positioning accuracy. The guide rod 113 is arranged parallel to the screw 112 and is mainly used to limit the swing and rotation of the support unit 120 during movement to ensure the straightness of the movement path. The support plate 114 is used to install the end support structures of the drive motor 111, the screw 112, and the guide rod 113, thereby forming a stable drive base.

[0027] The support unit 120 includes a left wing plate 121, a right wing plate 122, and a back plate 123. The left wing plate 121 and right wing plate 122 are arranged opposite each other and located on both sides of the material container, providing lateral restraint or support for the material container. Guide plates 130 are provided at the front ends of both the left wing plate 121 and right wing plate 122. Horizontally extending extension plates are provided on the inner sides of both the left wing plate 121 and right wing plate 122, forming a transfer support platform on which the material container can be placed and moved synchronously with the support unit 120. The transfer support platform has an upper bearing surface for supporting the material container.

[0028] It should be noted that the transfer support platform is used to support the material container during the transfer process, and the temperature-regulating receiving platform is used in the second chamber 002 to cooperate with the temperature-regulating mechanism 200 and contact the bottom of the material container. The two correspond to the transfer support and temperature-regulating contact functions, respectively. When the support part 120 moves to the predetermined position in the second chamber 002, the temperature-regulating receiving platform is located in the clearance space formed between the left wing plate 121 and the right wing plate 122, and corresponds to the bottom of the material container. Under the elastic action of the lifting spring 220, the temperature-regulating receiving platform can form a close contact with the bottom of the material container to improve the heat transfer efficiency of the temperature-regulating mechanism 200 to the material container and the steel base plate.

[0029] The back plate 123 connects the left wing plate 121 and the right wing plate 122 and extends outward. One side of the extended portion of the back plate 123 forms a first protrusion 1231, and the other side forms a second protrusion 1232. The screw 112 passes through the first protrusion 1231, and the guide rod 113 passes through the second protrusion 1232, thereby enabling the bearing part 120 to move smoothly along the direction of the guide rod 113 under the drive of the screw 112. Preferably, the first protrusion 1231 and the second protrusion 1232 are provided with bushings or sliding sleeves that cooperate with the screw 112 and the guide rod 113 to reduce friction and improve the smoothness of movement.

[0030] During operation, when the drive motor 111 rotates forward or reverse, the screw 112 drives the bearing part 120 to reciprocate linearly between the first chamber 001 and the second chamber 002. Due to the limiting effect of the guide rod 113, the bearing part 120 is less prone to tilting, shaking, or rotating during movement, ensuring that the material container is accurately positioned in the corresponding position of the two chambers, thus avoiding temperature control failure or inconvenience in feeding due to positional deviation.

[0031] The temperature control mechanism 200 is disposed within the second chamber 002, and is mainly used for individual pre-temperature control of the material container and the steel base plate supporting it. The temperature control mechanism 200 preferably includes a temperature regulating section 210, a lifting spring 220, and a base 230. A temperature regulating receiving platform is disposed above the temperature regulating section 210, located at the end point of the moving path of the transfer mechanism 100, for contacting the bottom of the material container after it enters the second chamber 002. The temperature regulating receiving platform has an upper receiving surface for contacting the bottom of the material container.

[0032] Specifically, in the free state where the temperature-regulating receiving platform is not carrying the material container, the temperature-regulating receiving platform avoids the movement path of the transfer bearing platform and the material container when entering the second chamber, so as to avoid the transfer bearing platform or the material container from colliding with the temperature-regulating receiving platform.

[0033] The lifting springs 220 are located at the lower part of the temperature regulating section 210. The number of lifting springs 220 can be set to multiple according to the bearing area and weight requirements, preferably symmetrically arranged at the four corners of the temperature regulating mechanism 200 to ensure balanced force. When the material container moves to the corresponding position of the temperature regulating receiving platform, the lifting springs 220 provide vertical elastic support to the temperature regulating section 210 and the temperature regulating receiving platform, so that the temperature regulating receiving platform forms a close contact with the bottom of the material container, thereby improving heat conduction efficiency and reducing uneven temperature difference caused by poor local contact. The base 230 is located below the lifting springs 220 and fixed to the bottom of the second chamber 002, and is used to support the entire temperature regulating mechanism 200.

[0034] The temperature control unit 210 preferably has both cooling and heating functions. The heating function can take the form of an electric heating tube, heating plate, heating element or hot air circulation assembly, etc.; the cooling function can take the form of a semiconductor cooling chip, cooling coil, refrigerant circulation assembly or other conventional refrigeration equipment, so as to achieve bidirectional regulation of heating and cooling.

[0035] In a preferred embodiment, the temperature control mechanism 200 may also be equipped with a temperature sensor and a controller. The temperature sensor may be located inside the temperature control receiving platform, near the temperature adjustment unit 210, or close to the bottom of the material container, for real-time acquisition of the temperature of the target area. The controller performs linkage control on the temperature adjustment unit 210 based on the temperature feedback signal to form a closed-loop regulation. In this way, the material container and the steel base plate it supports can be adjusted to the target temperature and kept stable, reducing the impact of temperature fluctuations on specimen preparation.

[0036] A partition plate 400 is disposed between the first chamber 001 and the second chamber 002 to spatially isolate the two chambers. A partition door 410 is provided on the partition plate 400. The partition door 410 preferably adopts a one-way opening or automatic reset structure, specifically a hinged flap structure, a sliding door structure, or a spring-reset structure. When the material container passes through the partition door 410 under the push of the transfer mechanism 100, the partition door 410 is opened; after the material container has passed, the partition door 410 automatically closes under the action of the reset mechanism to minimize heat exchange and airflow exchange between the two chambers.

[0037] A sealing strip, such as a high-temperature resistant silicone sealing strip or a rubber sealing strip, can be installed around the perimeter of the partition door 410 frame to improve the partitioning effect. For scenarios requiring strict temperature control, the partition door 410 can form a basic seal with the door frame after closing, thereby making the temperature regulation environment in the second chamber 002 more stable and more conducive to achieving independent pre-temperature regulation of the steel base plate.

[0038] The pressurizing mechanism 300 is used to apply molding pressure to the sample in the material container after the material is added. The pressurizing mechanism 300 includes a cylinder 310, a support 320, and a pressure plate 330. The cylinder 310 can be installed on the upper structure of the frame 600 or the first chamber 001, and its piston rod end is connected to the support 320. The pressure plate 330 is fixed below the support 320. When the cylinder 310 is activated, it drives the pressure plate 330 to press down vertically, applying pressure to the asphalt mixture or other molding material in the material container to complete compaction and shaping.

[0039] The bottom surface of the pressure plate 330 is preferably a flat structure to ensure that the pressure is evenly distributed on the material surface and reduce local under-compaction or over-compaction. The size of the pressure plate 330 can be designed according to the opening size of the material container, preferably slightly smaller than the opening of the material container to ensure that it will not interfere with the container wall when pressing down. The cylinder 310 can be set with different pressure levels according to the needs of specimen molding, and can maintain a certain pressure holding time after reaching the predetermined degree of compaction, thereby improving the consistency of the specimen.

[0040] A feeding mechanism 500 is located above the first chamber 001 and is used to add sample preparation materials into the material container. The feeding mechanism 500 includes an inlet 510, an air inlet 520, and an exhaust port 530. The inlet 510 is used to feed pre-mixed asphalt mixture, powder material, or other materials to be formed into the material container; the air inlet 520 can be used to introduce gas into the first chamber 001 to regulate the atmosphere inside the chamber; the exhaust port 530 is used to discharge gas from the chamber to prevent pressure buildup.

[0041] The feeding mechanism 500 can adopt a funnel-type feeding structure, a pipeline feeding structure, or a movable feeding structure. To reduce the impact on temperature during the feeding process, the inlet 510 can be equipped with an openable sealing cover or a quick-closing device to minimize the opening time. The air inlet 520 and the exhaust port 530 can also be connected to an external air source, exhaust ventilation device, or temperature control system to enable the linkage adjustment of environmental parameters during the test.

[0042] The frame 600 is used to support and install the entire machine structure. Both the feeding mechanism 500 and the pressurizing mechanism 300 are slidably mounted on the frame 600, facilitating position adjustments according to different specimen sizes, material container positions, or process requirements. Preferably, the feeding mechanism 500 and the pressurizing mechanism 300 achieve horizontal movement via sliders, slide rails, or guide grooves, and are fixed in position with locking components to ensure stability during operation.

[0043] The specific procedure for using this device is as follows.

[0044] First, a steel base plate is pre-placed inside the material container, and the material container containing the steel base plate is placed on the transfer platform of the transfer mechanism 100. Then, the drive motor 111 is started, driving the transfer mechanism 100 to move the material container from the first chamber 001 to the second chamber 002, and then to the corresponding position on the temperature-regulating receiving platform. Since the temperature-regulating receiving platform avoids the movement path of the transfer platform and the material container when it is in its free state without the material container, the material container will not collide with the temperature-regulating receiving platform during its entry into the second chamber 002 and movement to the corresponding position. After the material container moves to the predetermined position, the temperature-regulating receiving platform, under the elastic support of the lifting spring 220, forms a contact or fit with the bottom of the material container, allowing the material container and the steel base plate it carries to receive temperature regulation through the temperature-regulating receiving platform.

[0045] Then, the temperature control unit 210 is activated according to the predetermined test conditions to pre-adjust the temperature of the material container and the steel base plate it supports. For example, when simulating high-temperature conditions, the temperature control unit 210 can be activated to raise the temperature of the steel base plate to the target value; when simulating low-temperature conditions, the temperature control unit 210 can be activated to lower the temperature of the steel base plate to the target value. The temperature sensor provides real-time temperature data, and the controller automatically adjusts the heating or cooling output based on the feedback to keep the material container and the steel base plate it supports within the target temperature range.

[0046] After the temperature reaches the set value and stabilizes for a period of time, the drive motor 111 reverses its direction, rotating the material container from the second chamber 002 back to the first chamber 001. After the material container returns to the first chamber 001, a preset amount of asphalt mixture or other sample preparation materials are added into the material container through the feeding mechanism 500, so that the asphalt mixture and the steel base plate cooperate to complete the sample preparation.

[0047] After the material is fed, the pressurizing mechanism 300 can be activated as needed, driving the cylinder 310 to press down the pressure plate 330, applying molding pressure to the material to form a specimen of specified thickness and density. After the pressurization is completed, it can be maintained for a certain period of time to complete the stable molding, and then the pressure can be released for subsequent curing or testing.

[0048] In another operating mode, the material container can be preheated or precooled in the second chamber 002 and then immediately returned to the first chamber 001 for rapid feeding to minimize the temperature drop time and thus more accurately maintain the target temperature of the steel substrate. The automatic reset and closure of the partition door 410 further reduces heat exchange between the two chambers, ensuring the stability and repeatability of the test conditions.

[0049] Preferably, the operating temperature range of this device can be set according to actual test needs. For example, the temperature of the second chamber 002 can be adjusted within the range of -10℃ to 60℃, with a temperature control accuracy of ±1℃. The pressure range of the pressurizing mechanism 300 can be set according to different specimen requirements, for example, 0.1MPa to 10MPa. The travel distance of the transfer mechanism 100 can be customized according to the size of the material container and the distance between the two chambers to adapt to different test requirements. The above parameters are merely examples and should not be construed as limiting the present invention.

[0050] The working principle of this utility model is as follows: through the functional separation of the first chamber 001 and the second chamber 002, and the reciprocating transfer of the transfer mechanism 100 between the two chambers, the material container pre-loaded with the steel base plate first completes independent pre-temperature adjustment in the second chamber 002, and then returns to the first chamber 001 for feeding and molding. Since the temperature-regulating receiving platform avoids the movement path of the transfer receiving platform and the material container when entering the second chamber 002 in a free state, the material container will not collide with the temperature-regulating receiving platform when it enters the second chamber 002 with the transfer mechanism 100, and can move smoothly to the corresponding position of the temperature-regulating receiving platform; after the material container is in place, the temperature-regulating receiving platform forms a fit or contact with the bottom of the material container under the elastic support of the lifting spring 220, thereby reliably regulating the temperature of the material container and the steel base plate it carries. Therefore, the steel base plate can reach the preset temperature before the asphalt mixture is added, and with the cooperation of the partition door 410 and the cavity insulation structure, the heat loss after temperature adjustment is reduced, thereby more realistically simulating the temperature difference environment that occurs in the actual service of steel bridge deck pavement and improving the engineering representativeness of the test results.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. For those skilled in the art, various modifications, substitutions, or variations can be made to the above embodiments without departing from the scope of the technical solution of the present utility model, and all such modifications and variations should fall within the protection scope of the present utility model.

Claims

1. A temperature-differential controllable steel-based asphalt simulation sample preparation device, characterized in that: It includes a first chamber, a second chamber, a transfer mechanism, and a temperature control mechanism; The transfer mechanism has a transfer platform for carrying a material container, the material container for carrying a steel base plate, and the transfer mechanism for moving the material container between the first chamber and the second chamber. The second chamber is provided with the temperature regulating mechanism, and a temperature regulating receiving platform is provided above the temperature regulating mechanism for contacting the bottom of the material container; in the free state where the temperature regulating receiving platform is not carrying the material container, the temperature regulating receiving platform avoids the transfer bearing platform and the moving path of the material container when entering the second chamber, so as to avoid the transfer bearing platform or the material container from colliding with the temperature regulating receiving platform; The transfer mechanism has an extended state and a retracted state; When the transfer mechanism is in the extended state, the material container is located in the second chamber and is in corresponding contact with the temperature-regulating receiving platform to regulate the temperature of the material container and the steel base plate it supports. When the transfer mechanism is in the retracted state, the material container is located in the first chamber to receive materials.

2. The temperature-differential controllable steel-based asphalt simulation sample preparation device according to claim 1, characterized in that: The transfer mechanism includes a drive unit and a load-bearing unit; The drive unit includes a drive motor, a screw connected to the drive motor, and a guide rod arranged parallel to the screw. The bearing part is threadedly connected to the screw, and the bearing part is used to carry the material container and moves along the direction of the guide rod under the drive of the drive motor.

3. The temperature-differential controllable steel-based asphalt simulation sample preparation device according to claim 2, characterized in that: The supporting part includes a left wing plate, a right wing plate and a back plate. The left wing plate and the right wing plate are arranged opposite to each other, and horizontally extending extension plates are respectively provided on their inner sides. The extension plates form the transfer carrying platform, which is used to carry the material container. The back plate connects the left wing plate and the right wing plate and extends outward; the portion of the back plate that protrudes from the left wing plate is a first protrusion, and the screw passes through the first protrusion.

4. The temperature-differential controllable steel-based asphalt simulation sample preparation device according to claim 3, characterized in that: The portion of the back plate that protrudes from the right wing plate is a second protrusion; the guide rod passes through the second protrusion. The guide rod is arranged parallel to the screw to restrict the rotation of the bearing part and maintain linear motion.

5. The temperature-differential controllable steel-based asphalt simulation sample preparation device according to claim 4, characterized in that: The drive unit also includes a support plate, and the ends of the drive motor and the guide rod are both mounted on the support plate.

6. The temperature-differential controllable steel-based asphalt simulation sample preparation device according to claim 5, characterized in that: It also includes a pressurizing mechanism, which includes a cylinder, a support for a piston rod connected to the cylinder, and a pressure plate connected below the support; the pressure plate is used to apply molding pressure to the material in the material container in a vertical direction.

7. The temperature-differential controllable steel-based asphalt simulation sample preparation device according to claim 6, characterized in that: A partition plate is provided between the first chamber and the second chamber. A partition door is provided on the partition plate. The partition door is opened by the material container or the transfer mechanism and automatically resets and closes after the external force is removed.

8. The temperature-differential controllable steel-based asphalt simulation sample preparation device according to claim 7, characterized in that: The temperature control mechanism includes a temperature regulating part, a lifting spring disposed at the lower part of the temperature regulating part, and a base disposed at the lower part of the lifting spring; The temperature-regulating receiving platform is disposed above the temperature regulating part, and the lifting spring is used to provide vertical elastic support to the temperature regulating part and the temperature-regulating receiving platform, so that the temperature-regulating receiving platform forms a close contact with the bottom of the material container; The temperature control unit is used to heat or cool the material container and the steel base plate it supports.

9. The temperature-differential controllable steel-based asphalt simulation sample preparation device according to claim 8, characterized in that: It also includes a feeding mechanism, which is located above the first chamber and includes a feeding port, an air inlet, and an exhaust port.

10. The temperature-differential controllable steel-based asphalt simulation sample preparation device according to claim 9, characterized in that: It also includes a frame, on which the feeding mechanism and the pressurizing mechanism are slidably disposed.

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