Plateau asphalt pavement vibration characteristic testing device
By designing a vibration characteristic testing device for asphalt pavement in high-altitude areas, the shortcomings of vibration performance testing for permafrost in high-altitude environments have been addressed. This device enables precise control of temperature and humidity and visual observation, thereby improving the accuracy and safety of permafrost vibration performance testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-27
AI Technical Summary
Existing technologies lack effective testing devices for the vibration performance of roadbeds and pavements in complex plateau environments, making it difficult to guarantee traffic safety.
A vibration characteristic testing device for plateau asphalt pavement was designed, equipped with a cooling device, a heating device, a three-layer diversion baffle, a thermometer, a camera, a hygrometer, a nitrogen inlet, a humidifier, a sample stage, a stainless steel rod, and a vibrator. It can simulate the vibration performance of frozen soil under different environments and working conditions. Temperature is regulated by liquid nitrogen and resistance heating, humidity is regulated by controlling the amount of nitrogen and water evaporator, and visualization observation is achieved by combining a high-resolution camera.
It enables precise testing of permafrost vibration performance in high-altitude environments, with continuously adjustable temperature from -50 ℃ to 50 ℃ and controllable humidity from 0% to 50%. It offers high precision, provides visualized observation of permafrost vibration and multi-frequency vibration conditions, and enhances traffic safety.
Smart Images
Figure CN224051547U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to highland pitch pavement vibration characteristic testing arrangement technical field, concretely is a kind of highland pitch pavement vibration characteristic testing arrangement. BACKGROUND
[0002] It is known that, at present, the test data of traffic safety under the complex environment and working condition of plateau is subject to testing device, and the related performance research of its subgrade pavement is quite deficient, which directly restricts the upgrading and replacement of related industries and poses great challenge to driving safety. Therefore, a device with different environmental changes such as temperature and humidity and complex working conditions such as frozen soil fatigue, impact and compression resistance is needed to test the vibration performance of frozen soil. The popularization of this equipment will promote the development of plateau transportation industry. SUMMARY
[0003] In view of the deficiencies of the prior art, the utility model provides a kind of highland pitch pavement vibration characteristic testing arrangement.
[0004] (II) Technical solution
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of highland pitch pavement vibration characteristic testing arrangement, including device shell, the left end of device shell is provided with refrigeration device and heating device, the right end of refrigeration device and heating device is provided with three layers of shunt baffle, the middle part of device shell is provided with three cameras, the left end of several cameras is provided with thermometer, the right end of several cameras is provided with hygrometer, the right end top of device shell is provided with nitrogen hole, the right end bottom of device shell is provided with humidifier, the bottom of device shell is provided with sample stage, the bottom of sample stage is provided with stainless steel pole, the middle part of stainless steel pole is provided with epoxy resin, the end of stainless steel pole away from sample stage is provided with vibrator.
[0006] Further, the utility model improves that the front end of device shell is provided with transparent observation window.
[0007] Further, the utility model improves that the edges of refrigeration device, heating device, three layers of shunt baffle, thermometer, observation window, camera, hygrometer, nitrogen hole, sample stage, epoxy resin, stainless steel pole and vibration table are all provided with rounded corners.
[0008] On the basis of the above content, the utility model improves that each camera is high-resolution camera.
[0009] (III) Beneficial effects
[0010] Compared with the prior art, the utility model provides a kind of highland pitch pavement vibration characteristic testing arrangement, with the following beneficial effects:
[0011] The plateau asphalt pavement vibration characteristic testing device has the functions of testing the vibration performance of frozen soil under different environments such as temperature and humidity changes and complex working conditions such as frozen soil fatigue, impact and compression resistance. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is an internal structure schematic view of the present application;
[0013] In the figure: 1, refrigeration device; 2, heating device; 3, three-layer shunt baffle; 4, thermometer; 5, observation window; 6, camera; 7, hygrometer; 8, nitrogen hole; 9, humidifier; 10, sample table; 11, epoxy resin; 12, stainless steel rod; 13, vibration table. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0015] Please refer to Figure 1 The plateau asphalt pavement vibration characteristic testing device of the present application comprises a device shell, a transparent observation window 5 is arranged at the front end of the device shell, a refrigeration device 1 and a heating device 2 are arranged at the left end of the device shell, a three-layer shunt baffle 3 is arranged at the right end of the refrigeration device 1 and the heating device 2, three cameras 6 are arranged at the middle part of the device shell, each camera 6 is a high-resolution camera 6, a thermometer 4 is arranged at the left end of the cameras 6, a hygrometer 7 is arranged at the right end of the cameras 6, a nitrogen hole 8 is arranged at the right end top of the device shell, a humidifier 9 is arranged at the right end bottom of the device shell, a sample table 10 is arranged at the bottom of the device shell, a stainless steel rod 12 is arranged at the bottom of the sample table 10, an epoxy resin 11 is arranged at the middle part of the stainless steel rod 12, a vibrator is arranged at the end of the stainless steel rod 12 away from the sample table 10, and the edges of the refrigeration device 1, the heating device 2, the three-layer shunt baffle 3, the thermometer 4, the observation window 5, the cameras 6, the hygrometer 7, the nitrogen hole 8, the sample table 10, the epoxy resin 11, the stainless steel rod 12 and the vibration table 13 are all arranged in a round corner shape.
[0016] The three-layer open hole shunt baffle idea three baffle open hole position alternately, effectively avoid frozen soil by cold and heat uneven. The concrete block is arranged with a thermometer 4 and a humidity meter 7, respectively, to facilitate the acquisition of the overall space temperature of the concrete. When the temperature and humidity values of each region are consistent, the test can be carried out. The device is provided with an observation window 5, which combines with a high-resolution camera to observe the whole vibration behavior of the concrete block in real time. The observation window 5 uses aviation organic glass, which effectively isolates the influence of external temperature.
[0017] The device adjusts the dry and wet degree of the cavity by controlling the flow of nitrogen and humidifier, and uses liquid nitrogen to realize low temperature environment, and electric heating wire to realize high temperature environment. The temperature is continuously controllable by PID control. The vibrator is connected by a stainless steel rod 12 to transmit vibration to the frozen soil; the stainless steel rod 12 is connected by epoxy resin 11, which is to isolate temperature and exclude the interference of external temperature.
[0018] A visual plateau frozen soil vibration characteristic testing device is independently developed. The device realizes a temperature changing environment of-50 ℃-50 ℃ in the cavity by liquid nitrogen and resistance heating, with a continuous adjustable accuracy of 0.1 ℃. The controllable humidity of 0 %-50 % in the cavity is realized by controlling the amount of nitrogen and introducing water into the evaporator device, with an accuracy of 1 %. The visualization function is realized by the opening of the cavity and the combination of K9 and high-resolution camera. The project proposes a three-layer shunt method to keep the temperature and humidity of the cavity uniform at all times. The strain sensor EVT-300 and linear motor are used to realize the force and displacement resolution of 0.1 mN and 0.01 um respectively during the test process
[0019] In summary, the plateau asphalt pavement vibration characteristic testing device is designed with three-layer shunt baffle 3, which makes the airflow more uniform into the cavity, and keeps the temperature and humidity in the cavity uniform at all times. The device realizes a temperature changing environment of-50 ℃-50 ℃ in the cavity by liquid nitrogen and resistance heating, with a continuous adjustable accuracy of 0.1 ℃. The controllable humidity of 0 %-50 % in the cavity is realized by controlling the amount of nitrogen and introducing water into the evaporator device, with an accuracy of 1 %. The visualization function is realized by the opening of the cavity and the combination of K9 and high-resolution camera. The vibrator and stainless steel rod 11 are connected to realize various frequency vibrations.
[0020] Various environmental temperatures are realized by liquid nitrogen and resistance heating; various humidity conditions are realized by controlling the amount of nitrogen and introducing water into the evaporator device; various frequency vibration conditions are realized by connecting the vibrator and the stainless steel rod 11; and the high-resolution camera can be used to observe the frozen soil in real time through the observation window 5, which has the function of visualization.
[0021] The control mode of the utility model is controlled by manually starting and closing the switch, and the wiring diagram of the power element and the provision of the power supply are common knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the control mode and the wiring arrangement of the utility model will not be explained in detail.
[0022] In order to better illustrate the embodiment, some components in the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product.
[0023] In addition, unless otherwise defined, technical terms or scientific terms used in the description of the present application should be understood as the general meaning understood by those skilled in the art to which the present application belongs. The words such as "up", "down", "left", "right", "center", "vertical", "horizontal", "inner", "outer" and the like used in the description of the present application only represent the relative direction or positional relationship, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly, therefore it cannot be understood as a limitation on the present application. The "first", "second", "third" and the like used in the description of the present application are only for the purpose of description, in order to distinguish different components, and cannot be understood as indicating or implying relative importance. The "one", "a" or "the" and the like used in the description of the present application should not be understood as an absolute limitation on the quantity, but should be understood as the existence of at least one. The "include" or "contain" and the like used in the description of the present application means that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects.
[0024] In addition, it also needs to be explained that, unless otherwise specified and limited, the "installation", "connection", "connection" and the like used in the description of the present application should be understood in a broad sense, for example, the connection can be fixed connection, or detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements, those skilled in the art can understand the specific meaning of the present application according to the specific situation.
[0025] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A device for testing the vibration characteristics of asphalt pavement in high-altitude areas, characterized in that: The device includes a housing, with a refrigeration device (1) and a heating device (2) on the left end of the housing, a three-layer diversion baffle (3) on the right end of the refrigeration device (1) and the heating device (2), three cameras (6) in the middle of the housing, a thermometer (4) on the left end of several cameras (6), a hygrometer (7) on the right end of several cameras (6), a nitrogen vent (8) on the top right end of the housing, a humidifier (9) on the bottom right end of the housing, a sample stage (10) on the bottom of the housing, a stainless steel rod (12) on the bottom of the sample stage (10), epoxy resin (11) in the middle of the stainless steel rod (12), and a vibrator on the end of the stainless steel rod (12) away from the sample stage (10).
2. The vibration characteristic testing device for plateau asphalt pavement according to claim 1, characterized in that: A transparent observation window (5) is provided at the front end of the device housing.
3. The vibration characteristic testing device for plateau asphalt pavement according to claim 1, characterized in that: The edges of the refrigeration device (1), heating device (2), three-layer diversion baffle (3), thermometer (4), observation window (5), camera (6), hygrometer (7), nitrogen vent (8), sample stage (10), epoxy resin (11), stainless steel rod (12), and vibration table (13) are all rounded.
4. The vibration characteristic testing device for plateau asphalt pavement according to claim 1, characterized in that: Each of the cameras (6) is a high-resolution camera (6).