Drawing force testing device for asphalt materials
By designing a pulling force testing device with a guide slide mechanism and a removable connection unit, the problem of inaccurate measurement accuracy caused by poor fixation of asphalt materials in the prior art is solved, and high-precision pulling force testing is achieved.
Patent Information
- Application Number
- CN202421455764.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The existing pulling force testing device has poor fixation of asphalt materials, resulting in inaccurate measurement accuracy and prone to deviation in the test results.
A pulling force testing device including a guide slide mechanism and a removable connecting unit is designed to form a limit fixation by pouring asphalt material into the receiving cavity and opening area of the connecting unit to avoid accuracy problems caused by the clamping method.
The stable fixation of asphalt material is achieved, measurement errors caused by plastic deformation are avoided, and measurement accuracy and accuracy of test results are improved.
Smart Images
Figure CN222913298U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a drawing force test device for asphalt materials. Background Art
[0002] Asphalt materials, such as petroleum asphalt, modified asphalt, etc., play an extremely important role in the fields of road construction, waterproof engineering, etc. These materials not only have good bonding properties, durability and waterproof properties, but also can adapt to different climate conditions and traffic loads. In road paving, the asphalt layer can provide a flat and wear-resistant surface, and at the same time can play roles such as water isolation, frost protection, and noise reduction. In waterproof engineering, asphalt materials are widely used in the waterproof treatment of building structures such as roofs, basements, and bridges. In these applications, the drawing performance of asphalt materials, that is, the anti-detachment ability of the materials when subjected to tensile force, is a key index to measure its quality. Asphalt materials with good drawing performance can better resist the tensile force of the base layer, ensuring the flatness of the road and the long-term effectiveness of the waterproof layer. Therefore, accurately testing the drawing performance of asphalt materials is crucial for ensuring project quality. However, in the existing drawing force test devices, two clamps respectively clamp the two ends of the asphalt material, and then the drawing force test is carried out. In this kind of fixing method, during the test, the asphalt material will have plastic deformation, and it is easy to loosen or fall off from the clamps, resulting in inaccurate test data. Moreover, the plastic deformation of the asphalt material occurs in a relatively wide area between the two clamps, and accurate test results cannot be obtained, and test deviations are likely to occur. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to overcome the defect that the existing drawing force test device has poor fixation of asphalt materials, resulting in inaccurate measurement accuracy, and to provide a drawing force test device for asphalt materials.
[0004] The utility model solves the above technical problem through the following technical solutions:
[0005] A drawing force test device for asphalt materials, which includes a connection and fixation unit. The connection and fixation unit includes a guiding and sliding mechanism extending along a first direction, and a first connection unit and a second connection unit installed on the guiding and sliding mechanism and corresponding to each other. The first connection unit is detachably connected to the guiding and sliding mechanism, and the second connection unit slides on the guiding and sliding mechanism. The first connection unit has a first accommodation cavity, the side wall of the first accommodation cavity has a first opening, and the inner diameter of the first opening is smaller than the inner diameter of the first accommodation cavity. The second connection unit has a second accommodation cavity, the side wall of the second accommodation cavity has a second opening, and the inner diameter of the second opening is smaller than the inner diameter of the second accommodation cavity. The second opening is correspondingly arranged with the first opening, and the first accommodation cavity communicates with the second accommodation cavity along the first direction through the first opening and the second opening.
[0006] In this solution, the drawing force test device is used for the drawing force test of asphalt materials. By pouring the asphalt materials into the area where the first accommodating cavity, the first opening of the first connecting unit, the second accommodating cavity, and the second opening of the second connecting unit are located, a whole test sample is formed between the two connecting units. Since the inner diameter of the first accommodating cavity is larger than that of the first opening, and the inner diameter of the second accommodating cavity is larger than that of the second opening, the sizes of both ends of the test sample are larger than those of the middle part. Then, both ends of the test sample are limited and fixed by the first accommodating cavity of the first connecting unit and the second accommodating cavity of the second connecting unit. There is no need to fix the test sample by clamping, which is simple and convenient to operate. Moreover, this fixing method does not apply additional clamping force to the test sample, will not affect the test results, nor will it fall off from the first connecting unit and the second connecting unit due to the plastic deformation of the test sample. The fixing is firm. At the same time, its plastic deformation is limited to the area between the first connecting unit and the second connecting unit, and the failure position can be accurately determined, with high measurement accuracy.
[0007] The first connecting unit is detachably connected to the guide rail, which is convenient for adjusting the distance between the first connecting unit and the second connecting unit to meet different test requirements.
[0008] During the test, first pour the liquid asphalt materials onto the connecting and fixing unit. Wait for the asphalt materials to cool and solidify into a semi-solid state, and then drive the second connecting unit through the driving mechanism. The second connecting unit slides on the guiding mechanism and moves away from the first connecting unit to realize the drawing operation of the asphalt materials.
[0009] Preferably, the upper ends of the first accommodating cavity and the second accommodating cavity are both open.
[0010] In this solution, with the above structural arrangement, it is convenient to pour the liquid asphalt materials.
[0011] Preferably, the side walls on both sides of the first opening are inclined from the inside to the outside along the direction of approaching each other, and the side walls on both sides of the second opening are inclined from the inside to the outside along the direction of approaching each other.
[0012] In this solution, with the above structural arrangement, a gradually narrowing structure is formed, reducing the stress at the corner and improving the connection effect.
[0013] Preferably, arc-shaped chamfers are provided at the corners of the side walls of the first opening and the second opening.
[0014] Preferably, the drawing force testing device further includes a tensile force sensor, a processing module, and a driving mechanism. The tensile force sensor is electrically connected to the processing module. The driving mechanism is connected to the second connection unit through the tensile force sensor. The driving mechanism is used to drive the second connection unit to slide along the first direction. The processing module includes a display, and the display is used to display the data of the tensile force sensor.
[0015] In this solution, the driving mechanism drives the second connection unit to slide on the guiding mechanism, so that the second connection unit moves away from the first connection unit, realizing the drawing operation of asphalt-like materials. The tensile force sensor can monitor the change of tensile force in real time and quickly. The processing module collects the real-time data of the tensile force sensor and displays this data through the display.
[0016] Preferably, the driving mechanism includes a motor and a connecting piece. The two ends of the connecting piece are respectively connected to the motor and the tensile force sensor, and the motor is electrically connected to the processing module.
[0017] In this solution, the processing module controls the start and stop of the motor, and uses the motor to provide driving force, which is convenient for realizing automatic and accurate control of the drawing operation.
[0018] Preferably, the drawing force testing device further includes an airtight box body. The connection and fixing unit is installed in the inner cavity of the box body. The box body is provided with an openable and closable sealing door. When the sealing door is opened, the testing area where the first connection unit and the second connection unit are located is exposed.
[0019] In this solution, by arranging the connection and fixing unit in an airtight box body, the testing area where the test sample is located is not affected by external factors, improving the testing accuracy.
[0020] Preferably, the drawing force testing device further includes a temperature sensor. The temperature sensor is installed in the inner cavity of the box body. The temperature sensor is electrically connected to the processing module, and the display is also used to display the data of the temperature sensor.
[0021] In this solution, the temperature sensor is used to test the temperature inside the box body. The processing module collects the temperature of the temperature sensor and displays this temperature on the display, facilitating the tester to understand the drawing force of the test sample at what temperature.
[0022] Preferably, the drawing force testing device further includes a heating device and / or a refrigerating device. The heating device is electrically connected to the processing module and is used to heat the inner cavity of the box body. The refrigerating device is electrically connected to the processing module and is used to cool the inner cavity of the box body.
[0023] In this solution, the processing module controls the heating device to heat the inner cavity of the box body, so that the test area reaches the required temperature test requirements to meet the diverse test requirements of the drawing force test.
[0024] The processing module controls the refrigeration device to refrigerate the inner cavity of the box body, so that the test area reaches the required temperature test requirements to meet the diverse test requirements of the drawing force test.
[0025] Preferably, the first connection unit includes a connection part and a locking part. The connection part is slidably arranged on the guiding mechanism, and the locking part is used to lock or unlock the connection part on the guiding mechanism. The first accommodating cavity and the first opening are arranged on the connection part.
[0026] In this solution, unlocking the locking part facilitates adjusting the distance between the connection part of the first connection unit and the second connection unit to meet diverse test requirements. Locking the locking part facilitates fixing the connection part of the first connection unit on the guiding mechanism to prevent both the first connection unit and the second connection unit from sliding during the drawing test, resulting in a failed drawing.
[0027] Preferably, the guiding mechanism includes a guide rail and a slider. The guide rail extends along the first direction, and the slider is embedded in and slidably arranged on the guide rail. The first connection unit and the second connection unit are respectively connected with the slider.
[0028] In this solution, the slider of the first connection unit is integrally provided with the base, and the slider of the second connection unit is integrally provided with the base, with a simple structure and convenient installation.
[0029] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.
[0030] The positive and progressive effects of the present utility model are as follows: The drawing force testing device is used for testing the drawing force of asphalt materials. By pouring the asphalt materials into the areas where the first accommodating cavity, the first opening of the first connection unit, the second accommodating cavity, and the second opening of the second connection unit are located, a whole test sample is formed between the two connection units for the asphalt materials. Since the inner diameter of the first accommodating cavity is larger than that of the first opening, and the inner diameter of the second accommodating cavity is larger than that of the second opening, the sizes of both ends of the test sample are larger than that of the middle part. Then, both ends of the test sample are limited and fixed by the first accommodating cavity of the first connection unit and the second accommodating cavity of the second connection unit respectively. There is no need to fix the test sample by clamping, and the operation is simple and convenient. Moreover, this fixing method does not apply additional clamping force to the test sample, will not affect the test result, nor will it fall off from the first connection unit and the second connection unit due to the plastic deformation of the test sample. The fixing is firm. At the same time, its plastic deformation is limited within the area between the first connection unit and the second connection unit, and the failure position can be accurately determined, with high measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 Structural schematic of the drawing force testing device for asphalt materials according to an embodiment of the present utility model Figure 1 .
[0032] Figure 2 Internal structural schematic of the drawing force testing device for asphalt materials according to an embodiment of the present utility model Figure 1 .
[0033] Figure 3 Internal structural schematic of the drawing force testing device for asphalt materials according to an embodiment of the present utility model Figure 2 .
[0034] Description of the reference numerals:
[0035] Connection and fixing unit 1
[0036] Guide sliding mechanism 11
[0037] Guide rail 111
[0038] First connection unit 12
[0039] First accommodating cavity 121
[0040] First opening 122
[0041] Side wall 123
[0042] Second connection unit 13
[0043] Second accommodating cavity 131
[0044] Second opening 132
[0045] Side wall 133
[0046] Tensile sensor 2
[0047] Processing module 3
[0048] Display 31
[0049] Driving mechanism 4
[0050] Connecting member 41
[0051] Box body 5
[0052] Sealed door 51
[0053] Temperature sensor 6
[0054] Heating device 7
[0055] Refrigeration device 8
[0056] First direction 100 Specific implementation mode
[0057] The present utility model will be more clearly and completely described below by way of embodiments in conjunction with the accompanying drawings, but the present utility model is not limited to the scope of the described embodiments.
[0058] As Figures 1 - 3 shown, this embodiment discloses a pull-out force test device for asphalt materials. The pull-out force test device includes a connection and fixation unit 1. The connection and fixation unit 1 includes a guiding and sliding mechanism 11 extending along the first direction 100, and a first connection unit 12 and a second connection unit 13 installed on the guiding and sliding mechanism 11 and arranged correspondingly. The first connection unit 12 is detachably connected to the guiding and sliding mechanism 11, and the second connection unit 13 slides on the guiding and sliding mechanism 11. The first connection unit 12 has a first accommodation cavity 121. The side wall 123 of the first accommodation cavity 121 has a first opening 122. The inner diameter of the first opening 122 is smaller than the inner diameter of the first accommodation cavity 121. The second connection unit 13 has a second accommodation cavity 131. The side wall 133 of the second accommodation cavity 131 has a second opening 132. The inner diameter of the second opening 132 is smaller than the inner diameter of the second accommodation cavity 131. The second opening 132 is arranged corresponding to the first opening 122. The first accommodation cavity 121 communicates with the second accommodation cavity 131 along the first direction 100 through the first opening 122 and the second opening 132.
[0059] In this embodiment, the drawing force testing device is used for testing the drawing force of asphalt materials. By pouring the asphalt materials into the areas where the first accommodating cavity 121, the first opening 122 of the first connecting unit 12, the second accommodating cavity 131, and the second opening 132 of the second connecting unit 13 are located, a whole test sample is formed between the two connecting units. Since the inner diameter of the first accommodating cavity 121 is larger than that of the first opening 122, and the inner diameter of the second accommodating cavity 131 is larger than that of the second opening 132, the sizes of both ends of the test sample are larger than those of the middle part. Then, both ends of the test sample are limited and fixed by the first accommodating cavity 121 of the first connecting unit 12 and the second accommodating cavity 131 of the second connecting unit 13. There is no need to fix the test sample by clamping, which is simple and convenient to operate. Moreover, this fixing method does not apply additional clamping force to the test sample, will not affect the test results, and will not fall off from the first connecting unit 12 and the second connecting unit 13 due to the plastic deformation of the test sample. The fixing is firm. At the same time, its plastic deformation is restricted within the area between the first connecting unit 12 and the second connecting unit 13, and the failure position can be accurately determined with high measurement accuracy.
[0060] The first connecting unit 12 is detachably connected to the guide rail 111, which is convenient for adjusting the distance between the first connecting unit 12 and the second connecting unit 13 to meet different test requirements.
[0061] The guiding mechanism 11 includes a guide rail 111 and a slider. The guide rail 111 extends along the first direction 100. The slider is embedded in and slides on the guide rail 111. Sliders are respectively connected to the first connecting unit 12 and the second connecting unit 13. In this embodiment, the slider of the first connecting unit 12 is integrally provided with the base, and the slider of the second connecting unit 13 is integrally provided with the base, with a simple structure and convenient installation.
[0062] Of course, in other embodiments, the guiding mechanism 11 also adopts other structures with guiding functions.
[0063] In this embodiment, the upper ends of the first accommodating cavity 121 and the second accommodating cavity 131 are both open, which is convenient for pouring liquid asphalt materials and also convenient for observing the plastic deformation process of the test sample from above.
[0064] As Figure 2 shown, the side walls 123 on both sides of the first opening 122 are inclined from the inside to the outside in the direction of approaching each other, forming a gradually decreasing buffer structure to reduce the stress at the corner of the test sample and improve the connection effect and test accuracy. The side walls 133 on both sides of the second opening 132 are inclined from the inside to the outside in the direction of approaching each other, forming a gradually decreasing buffer structure to reduce the stress at the corner of the test sample and improve the connection effect and test accuracy.
[0065] Preferably, rounded chamfers are provided at the side wall corners of the first opening 122 and the second opening 132.
[0066] As Figures 1 - 3 shown, the pull-out force testing device further includes a tensile force sensor 2, a processing module 3, and a driving mechanism 4. The tensile force sensor 2 is electrically connected to the processing module 3. The driving mechanism 4 is connected to the second connection unit 13 through the tensile force sensor 2. The driving mechanism 4 is used to drive the second connection unit 13 to slide along the first direction 100. The processing module 3 includes a display 31, and the display 31 is used to display the data of the tensile force sensor 2. The driving mechanism 4 drives the second connection unit 13 to slide on the guiding mechanism 11, so that the second connection unit 13 moves away from the first connection unit 12, realizing the pull-out operation of the asphalt-like material. The tensile force sensor 2 can monitor the change of the tensile force in real time and quickly. The processing module 3 collects the real-time data of the tensile force sensor 2 and displays the data through the display 31.
[0067] As Figure 2 and Figure 3 shown, in this embodiment, the driving mechanism 4 includes a motor (not shown in the figure) and a connecting member 41. The two ends of the connecting member 41 are respectively connected to the motor and the tensile force sensor 2, and the motor is electrically connected to the processing module 3. The processing module 3 controls the start and stop of the motor, and uses the motor to provide driving force, which is convenient for realizing the automatic and accurate control of the pull-out operation.
[0068] The connecting member 41 can be any one or a combination of a connecting rod, a connecting rope, a transmission screw rod, a gear and rack assembly, etc.
[0069] As Figures 1 - 3 shown, the pull-out force testing device further includes a sealed box body 5. The connection and fixing unit 1 is installed in the inner cavity of the box body 5. A sealable door 51 is provided on the box body 5. When the sealable door 51 is opened, the testing area where the first connection unit 12 and the second connection unit 13 are located is exposed. By arranging the connection and fixing unit 1 in the sealed box body 5, the testing area where the test sample is located is not affected by external factors, improving the testing accuracy. When the sealable door 51 is opened, it is convenient to pour the test sample. Preferably, the sealable door is made of a transparent material, which is convenient for observing the plastic deformation process of the test sample from the outside.
[0070] In this embodiment, the sealable door 51 has a U-shaped structure, and the U-shaped structure is buckled on the frame of the box body 5. The sealable door 51 can slide along the first direction 100 on the frame to realize opening or closing.
[0071] As Figure 2As shown, the drawing force testing device further includes a temperature sensor 6. The temperature sensor 6 is installed in the inner cavity of the box body 5. The temperature sensor 6 is electrically connected to the processing module 3. The display 31 is also used to display the data of the temperature sensor 6. The temperature sensor 6 is used to test the temperature inside the box body 5. The processing module 3 collects the temperature of the temperature sensor 6 and displays this temperature on the display 31, facilitating the tester to understand the drawing force of the test sample at what temperature.
[0072] During the test, first pour the liquid asphalt-like material into the first accommodating cavity 121 and the second accommodating cavity 131 of the connection and fixing unit 1. Wait for the asphalt-like material to cool and solidify into a semi-solid state. Then, start the motor through the processing module 3. The motor drives the second connection unit 13 through the connecting member 41 and the tension sensor 2. The second connection unit 13 slides on the guide rail 111 and moves away from the first connection unit 12. The processing module 3 collects the real-time monitored tension data of the tension sensor 2 and generates a tension curve according to this data and displays it on the display 31. At the same time, the processing module 3 synchronously displays the data of the temperature sensor 6 on the display 31. Or, the processing module 3 generates a test report with all the test data for the tester to refer to.
[0073] In this embodiment, the drawing force testing device further includes a heating device 7 and a refrigerating device 8. The heating device 7 is electrically connected to the processing module 3 and is used to heat the inner cavity of the box body 5 to make the test area reach the required temperature test requirements to meet the diverse test needs of the drawing force test. The refrigerating device 8 is electrically connected to the processing module 3 and is used to cool the inner cavity of the box body 5 to make the test area reach the required temperature test requirements to meet the diverse test needs of the drawing force test.
[0074] The detailed structures and working principles of the refrigerating device and the heating device are prior arts and will not be elaborated here.
[0075] Of course, in other embodiments, the heating device 7 and the refrigerating device 8 can be installed selectively.
[0076] In this embodiment, the first connection unit 12 includes a connection part and a locking part. The connection part slides on the guiding mechanism 11. The locking part is used to lock or unlock the connection part to / from the guiding mechanism 11. The first accommodating cavity 121 and the first opening 122 are provided on the connection part. Unlocking the locking part facilitates adjusting the distance between the connection part of the first connection unit 12 and the second connection unit 13 to meet diverse test needs. Locking the locking part facilitates fixing the connection part of the first connection unit 12 to the guiding mechanism 11 and preventing both the first connection unit 12 and the second connection unit 13 from sliding during the drawing test, resulting in the failure of the drawing test.
[0077] In this embodiment, the methods for the processing module 3 to collect data, process data, and the control method for the processing module 3 to control the motor, heating device, and refrigeration device are all prior art and will not be elaborated here.
[0078] In the description herein, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0079] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.
Claims
1. A tensile force testing device for asphalt materials, characterized in that: It includes a connecting and fixing unit, which includes a guide sliding mechanism extending along a first direction and a first connecting unit and a second connecting unit installed on the guide sliding mechanism and correspondingly arranged, the first connecting unit is detachably connected to the guide sliding mechanism, the second connecting unit is slidably arranged on the guide sliding mechanism, the first connecting unit has a first accommodating cavity, the side wall of the first accommodating cavity has a first opening, the inner diameter of the first opening is smaller than the inner diameter of the first accommodating cavity, the second connecting unit has a second accommodating cavity, the side wall of the second accommodating cavity has a second opening, the inner diameter of the second opening is smaller than the inner diameter of the second accommodating cavity, the second opening is arranged correspondingly to the first opening, and the first accommodating cavity is connected to the second accommodating cavity through the first opening and the second opening along the first direction.
2. The pull-out force testing device for asphalt materials according to claim 1, characterized in that: The upper ends of the first accommodating cavity and the second accommodating cavity are both open.
3. The pull-out force testing device for asphalt materials according to claim 2, characterized in that: The side walls on both sides of the first opening are tilted in a direction approaching each other from the inside to the outside, and the side walls on both sides of the second opening are tilted in a direction approaching each other from the inside to the outside.
4. The pull-out force testing device for asphalt materials according to claim 1, characterized in that: The pull-out force testing device also includes a tension sensor, a processing module and a driving mechanism. The tension sensor is electrically connected to the processing module. The driving mechanism is connected to the second connecting unit through the tension sensor. The driving mechanism is used to drive the second connecting unit to slide along the first direction. The processing module includes a display, and the display is used to display data of the tension sensor.
5. The pull-out force testing device for asphalt materials according to claim 4, characterized in that: The driving mechanism comprises a motor and a connecting member, two ends of the connecting member are respectively connected to the motor and the tension sensor, and the motor is electrically connected to the processing module.
6. The pull-out force testing device for asphalt materials according to claim 4, characterized in that: The pull-out force testing device also includes a sealed box, the connection and fixing unit is installed in the inner cavity of the box, and the box is provided with an openable and closable sealing door, which exposes the test area where the first connection unit and the second connection unit are located when the sealing door is opened.
7. The pull-out force testing device for asphalt materials according to claim 6, characterized in that: The pull-out force testing device further includes a temperature sensor, which is installed in the inner cavity of the box body. The temperature sensor is electrically connected to the processing module, and the display is also used to display data of the temperature sensor.
8. The pull-out force testing device for asphalt materials according to claim 7, characterized in that: The pull-out force testing device further includes a heating device and / or a cooling device. The heating device is electrically connected to the processing module and is used to heat the inner cavity of the box. The cooling device is electrically connected to the processing module and is used to cool the inner cavity of the box.
9. The tensile force testing device for asphalt materials according to claim 1, characterized in that: The first connecting unit includes a connecting portion and a locking portion. The connecting portion is slidably disposed on the sliding guide mechanism. The locking portion is used to lock or unlock the connecting portion on the sliding guide mechanism. The connecting portion is provided with the first accommodating cavity and the first opening.
10. The tensile force testing device for asphalt materials according to any one of claims 1 to 9, characterized in that: The guide slide mechanism includes a guide rail and a slider. The guide rail is extended along the first direction. The slider is embedded in and slidably arranged on the guide rail. The first connecting unit and the second connecting unit are respectively connected to the slider.