A slip test device

Abstract

This application provides a sliding test device for performing sliding tests on a test object. The device comprises a support mechanism; a first fixing mechanism slidably connected to the support mechanism for fixing a first end of the test object; a winding shaft disposed on the support mechanism; during the sliding test, the middle portion of the test object is wound around the outer circumferential surface of the winding shaft; a second fixing mechanism for fixing a second end of the test object and capable of moving relative to the support mechanism; wherein the angle between the line connecting the first fixing mechanism and the winding shaft and the line connecting the second fixing mechanism and the winding shaft is greater than 0° and less than 180°; and a first driving member connected to the second fixing mechanism for driving the second fixing mechanism to move, thereby causing the test object to slide back and forth relative to the winding shaft during the sliding test. This test device can verify the reliability of the test object by repeatedly bending or sliding it.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more particularly to a sliding test device. Background Technology

[0002] With the development of economy and technology, the application of display screens is becoming increasingly widespread. The bending resistance of flexible screens is an important parameter. Before leaving the factory, flexible screens need to undergo bending tests in flexible screen bending testing equipment to ensure their bending resistance, thereby ensuring the yield of finished flexible display screens.

[0003] Existing foldable display modules all require repeated folding or sliding to verify whether the module structure can meet user requirements.

[0004] Therefore, it is necessary to design a slip detection device to verify the reliability of the module slip under normal temperature, low temperature and high temperature and high humidity conditions. Summary of the Invention

[0005] This application provides a sliding test device, which can be used to verify the reliability of the test object by repeatedly bending and sliding it.

[0006] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a sliding test device for performing sliding tests on the test object; the sliding test device includes:

[0007] Bearing mechanism;

[0008] The first fixing mechanism is slidably connected to the bearing mechanism and is used to fix the first end of the object to be tested;

[0009] A winding shaft is mounted on the bearing mechanism; during the sliding test of the test object, the middle part of the test object is wound around the outer circumferential surface of the winding shaft;

[0010] The second fixing mechanism is used to fix the second end of the test object and is movable relative to the bearing mechanism; wherein the angle between the line connecting the first fixing mechanism and the winding axis and the line connecting the second fixing mechanism and the winding axis is greater than 0° and less than 180°.

[0011] The first driving member is connected to the second fixing mechanism and is used to drive the second fixing mechanism to move so as to drive the test object to slide back and forth relative to the surrounding axis during the sliding test.

[0012] Specifically, it also includes:

[0013] A tension balancing element is connected to the first fixing mechanism and the second fixing mechanism respectively, and is used to balance the tensile forces on the first end and the second end of the test object during the sliding test.

[0014] Preferably, the slip testing device further includes:

[0015] A first fixed shaft is disposed on the bearing mechanism;

[0016] The second fixed shaft is spaced apart from the first fixed shaft and is disposed on the bearing mechanism; the first end of the tension balancing element bypasses the first fixed shaft and is connected to the first fixing mechanism, and the second end of the tension balancing element bypasses the second fixed shaft and is connected to the second fixing mechanism.

[0017] Preferably, the surrounding axis, the first fixed axis, and the second fixed axis are arranged in an equilateral triangle.

[0018] Preferably, the first fixed shaft is rotatably connected to the first fixing mechanism; and / or the second fixed shaft is rotatably connected to the bearing mechanism.

[0019] This reduces the sliding resistance between the tension balancing element and the first fixed shaft, and / or the second fixed shaft.

[0020] Specifically, it also includes:

[0021] The tension detection element is connected to the first fixing mechanism and the tension balancing element respectively, and is used to detect the tensile force on the test object during the sliding test;

[0022] The tensioning mechanism has a tension balancing element partially wound around it. The tensioning mechanism is used to adjust the tension of the tension balancing element according to the difference between the tension force and the preset tension force.

[0023] Preferably, the tensioning mechanism is connected to the tension detection element, and the tensioning mechanism tightens the tension balancing element in response to the difference between the tensile force and the preset tensile force being greater than a preset threshold.

[0024] Preferably, the tension detection element is a tension meter;

[0025] Preferably, the tension balancing element is an elastic element, and the elastic element is a belt;

[0026] Preferably, the slip testing device further includes a control device, which includes a control unit and a display unit. The control unit is connected to the first driving component and is used to control the first driving component to operate according to set parameters. The display unit is electrically connected to the tension detection element and is used to display the tensile force.

[0027] The tensile force on the test object is detected by the tension detection element during the sliding test; the tension balancing element is adjusted by the tensioning mechanism according to the difference between the tensile force and the preset tensile force, so that the tensile force on the first and second ends of the test object is always the same during repeated sliding tests.

[0028] Specifically, the supporting mechanism includes:

[0029] A first support plate, wherein the first driving component is disposed on the first support plate;

[0030] Two supports are disposed opposite to each other on the first support plate; the two ends of the winding shaft are respectively rolledly connected to the two supports;

[0031] The rotating shaft is fixed between the two supports and is coaxially arranged with the winding shaft;

[0032] The second support plate is disposed on the rotating shaft, and the plane of the second support plate is inclined at a preset angle to the first support plate; the first fixing mechanism is slidably connected to the second support plate, and the side surface of the first fixing mechanism away from the second support plate is tangent to the outer peripheral surface of the rotating shaft.

[0033] This allows the test object to bend at a position around a set axis during the sliding process, so that the bending performance of the test object at various positions can be tested after repeated sliding.

[0034] Specifically, the second support plate has a sliding groove; the first fixing mechanism includes:

[0035] The slider is slidably connected to the groove on the second support plate;

[0036] The first carrier plate is fixedly connected to the slider and is used to fix the first end of the object to be tested;

[0037] Preferably, the extension direction of the groove is parallel to the length direction of the object to be tested.

[0038] In this way, when the first driving component moves the second end of the test object to slide, it can be ensured that the first end of the test object slides synchronously relative to the second bearing plate through the slider, avoiding the problem of the test object being pulled and damaged due to the tension caused by one end of the test object being subjected to force while the other end is fixed.

[0039] Specifically, the second fixing mechanism includes:

[0040] A first transmission rod is connected to the first driving member; the first driving member drives the first transmission rod to move back and forth in a direction that is close to or away from the first driving member.

[0041] A fixed base is fixed to the first transmission rod;

[0042] The second carrier plate is fixed on the fixing base and is used to fix the second end of the test object;

[0043] Preferably, the second end of the tension balancing element is fixed to the second carrier plate, and the portion of the tension balancing element located between the second fixed shaft and the second carrier plate has a plane that is flush with the plane of the second carrier plate.

[0044] It is easy to align with the second end of the test object, so as to save energy consumption of the first driving component while enabling the test object to slide.

[0045] Specifically, the second support plate is rotatably connected to the rotating shaft to adjust the tilt angle between the plane on which the second support plate is located and the first support plate.

[0046] Thus, the tilt angle between the plane of the second bearing plate and the first bearing plate can be adjusted by the relative rotation between the second bearing plate and the rotating shaft, thereby adjusting the degree of bending of the test object, i.e., the test radius of the test object.

[0047] Specifically, the supporting mechanism further includes: at least one limiting plate disposed on the first supporting plate and located on one or both sides of the two supports;

[0048] One of the limiting plate and the second bearing plate has an arc-shaped groove, and the other has a protrusion that matches the arc-shaped groove. The protrusion is embedded in the arc-shaped groove to limit the rotation angle of the second bearing plate.

[0049] This method can limit the rotation angle of the second bearing plate.

[0050] Preferably, the arc-shaped groove is located on the limiting plate.

[0051] Specifically, it also includes:

[0052] A tension detection element, one end of which is connected to the first fixing mechanism, is used to detect the tensile force on the test object during the sliding test.

[0053] A compensation mechanism, connected to the tension detection element, is used to drive the tension detection element toward or away from the first fixing mechanism according to the difference between the tensile force and the preset tensile force, so that the difference between the tensile force and the preset tensile force is within a threshold range.

[0054] This method ensures that the difference between the tensile force and the preset tensile force is within a threshold range.

[0055] Specifically, the compensation mechanism includes:

[0056] The second driving component is disposed on the bearing mechanism and electrically connected to the tension detection element;

[0057] The second transmission rod is connected to the second driving component and the tension detection element, respectively.

[0058] The second driving member is used to drive the second transmission rod to move in a direction toward or away from the second driving member according to the difference between the tensile force and the preset tensile force, so as to drive the tension detection element to move toward or away from the first fixing mechanism.

[0059] By setting up a compensation mechanism, the compensation mechanism drives the tension detection element to move toward or away from the first fixed mechanism according to the difference between the tension force detected by the tension detection element and the preset tension force. This keeps the difference between the tension force and the preset tension force within the threshold range, ensuring that the test object is subjected to uniform force during repeated sliding, improving the accuracy of the test results, and further improving the reliability of the test results of the test object.

[0060] This application differs from existing technologies by providing a sliding test device. It includes a first fixing mechanism for fixing the first end of the test object, a second fixing mechanism for fixing the second end of the test object, and a winding shaft so that during the sliding test, the middle portion of the test object is wound around the outer circumference of the winding shaft, with the angle between the line connecting the first fixing mechanism and the winding shaft and the line connecting the second fixing mechanism and the winding shaft controlled within a range greater than 0° and less than 180°. Simultaneously, a first driving member connected to the second fixing mechanism is provided to drive the second fixing mechanism to move, thereby causing the test object to repeatedly bend and slide back and forth relative to the winding shaft, thus verifying the reliability of the test object. Attached Figure Description

[0061] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0062] Figure 1 This is a schematic diagram of the structure of a sliding test device provided in an embodiment of this application;

[0063] Figure 2This is a schematic diagram of another sliding test device provided in the embodiments of this application. Detailed Implementation

[0064] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0065] In the following description, specific details such as particular system architectures, interfaces, and technologies are presented for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of this application.

[0066] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0067] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0068] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0069] Please see Figure 1 , Figure 1This is a schematic diagram of a sliding test device provided in an embodiment of this application. The present invention provides a sliding test device for performing a sliding test on a test object 1, which has a first end a and a second end b. It should be noted that, in the following specific embodiments, the test object 1 can be any product requiring a sliding test; for example, the test object 1 can be a flexible display screen, a flexible film, or a flexible sheet, etc., and is not limited thereto. In one embodiment, the sliding test device includes a supporting mechanism and a first fixing mechanism 2, a surrounding shaft 3, a second fixing mechanism 4, a first driving member 5, and a tension balancing element 6 disposed on the supporting mechanism.

[0070] The first fixing mechanism 2 is slidably connected to the supporting mechanism and is used to fix the first end a of the test object 1. A winding shaft 3 is disposed on the supporting mechanism. During the sliding test of the test object 1, the middle part of the test object 1 is wound around the outer circumferential surface of the winding shaft 3. The second fixing mechanism 4 is used to fix the second end b of the test object 1 and is movable relative to the supporting mechanism. The angle between the line connecting the first fixing mechanism 2 and the winding shaft 3 and the line connecting the second fixing mechanism 4 and the winding shaft 3 is greater than 0° and less than 180°, so that the test object 1 bends at the winding shaft 3 during the sliding test. The first driving component 5 is connected to the second fixing mechanism 4 and is used to drive the second fixing mechanism 4 to move, thereby causing the test object 1 to slide back and forth relative to the winding shaft 3 during the sliding test, thus performing the sliding test to verify the reliability of the test object 1. The first driving component 5 can be a motor.

[0071] Specifically, the supporting mechanism includes a first supporting plate 11, a bracket 12, a rotating shaft 13, and a second supporting plate 14. The first driving component 5 is specifically disposed on the first supporting plate 11.

[0072] There are two brackets 12, which are arranged opposite each other on the first support plate 11. The two ends of the rotating shaft 13 are respectively fixed to the two opposite brackets 12 and are located between the two brackets 12.

[0073] The second support plate 14 is disposed on the rotating shaft 13 (not shown in the figure) and fixed to the bracket 12 via the rotating shaft 13. The first fixing mechanism 2 is specifically slidably connected to the second support plate 14; and the plane of the first fixing mechanism 2 facing away from the second support plate 14 is tangent to the outer peripheral surface of the winding shaft 3, so that after the first end a of the test object 1 is connected to the surface of the first fixing mechanism 2 facing away from the second support plate 14, the part of the test object 1 located between the first fixing mechanism 2 and the winding shaft 3 is parallel to the plane of the first fixing mechanism 2 facing away from the second support plate 14, which facilitates the fit between the test object 1 and the first fixing mechanism 2. Of course, the first end a of the test object 1 can also be connected to the end face of the first fixing mechanism 2 facing the winding shaft 3 or other positions, and this application does not limit this.

[0074] Specifically, the plane containing the second support plate 14 is inclined at a preset angle to the first support plate 11. This allows the test object 1 to bend at positions corresponding to the axis 3 during sliding, enabling the bending performance of the test object 1 at various locations to be tested after repeated sliding. The preset angle can be greater than 0° and less than 90°; for example, preset angles of 30°, 45°, 60°, etc.

[0075] In one specific embodiment, the second support plate 14 is rotatably connected to the rotating shaft 13; thus, the tilt angle between the plane on which the second support plate 14 is located and the first support plate 11 can be adjusted by the relative rotation between the second support plate 14 and the rotating shaft 13, thereby adjusting the degree of bending of the test object 1, i.e., the test radius of the test object 1.

[0076] Specifically, the second support plate 14 includes two mounting arms and a main support plate. One end of each mounting arm is rotatably connected to the rotating shaft 13 to achieve a rotatable connection between the second support plate 14 and the rotating shaft 13. The main support plate is disposed between the two mounting arms and located at the other end of the mounting arms. The main support plate is plate-shaped, and the first fixing mechanism 2 is specifically slidably connected to the main support plate.

[0077] Furthermore, the supporting mechanism also includes a limiting plate 15, which is disposed on the first supporting plate 11 and located on one or both sides of the two supports 12. One of the limiting plate 15 and the second supporting plate 14 has an arc-shaped groove 151, and the other has a protrusion that matches the arc-shaped groove 151. The protrusion is embedded in the arc-shaped groove 151 and can slide within it, thereby stopping the sliding of the protrusion by the two end walls of the arc-shaped groove 151 along its extension direction, thus limiting the rotation angle of the second supporting plate 14 relative to the rotating shaft 13. Specifically, the arc-shaped groove 151 or the protrusion on the limiting plate 15 extends with the rotating shaft 13 as the center, that is, each position of the arc-shaped groove 151 or the protrusion is equidistant from the rotating shaft 13. This ensures that the second supporting plate 14 can rotate relative to the rotating shaft 13. Specifically, there can be two limiting plates 15, with each limiting plate 15 disposed on one side of the two supports 12.

[0078] In some embodiments, the limiting plate 15 has an arc-shaped groove 151, and the mounting arm of the second support plate 14 has a protrusion on the side facing the limiting plate 15. The protrusion is embedded in the arc-shaped groove 151 to limit the rotation angle of the second support plate 14. Of course, in some other embodiments, the second support plate 14 may have an arc-shaped groove 151, and the limiting plate 15 may have a protrusion to limit the rotation angle of the second support plate 14.

[0079] The first fixing mechanism 2 includes a slider 21 and a first carrier plate 22. The slider 21 is slidably connected to the main carrier plate of the second carrier plate 14. The first carrier plate 22 is fixedly connected to the slider 21 and is used to fix the first end a of the test object 1. In this way, when the first driving member 5 drives the second end b of the test object 1 to slide, it can be ensured that the first end a of the test object 1 slides synchronously relative to the second carrier plate 14 through the slider 21, avoiding the problem that the test object 1 is pulled by the tension due to one end being subjected to force while the other end is fixed, which could damage the test object 1.

[0080] Specifically, the second support plate 14 is provided with a groove, and the slider 21 is embedded in the groove and slides relative to it. The extension direction of the groove is parallel to the length direction of the test object 1, so as to save energy consumption of the first driving component 5 while realizing the sliding of the test object 1.

[0081] The two ends of the winding shaft 3 are rotatably connected to two supports 12. During the sliding test of the test object 1, the middle part of the test object 1 is wrapped around the outer circumference of the winding shaft 3, so that it bends at the winding shaft 3. By rotatably connecting the winding shaft 3 to the supports 12, the winding shaft 3 can rotate with the test object 1 during the sliding process, which can reduce the sliding friction resistance of the test object 1 relative to the winding shaft 3 and facilitate the sliding of the test object 1 relative to the winding shaft 3.

[0082] In this embodiment, the circumferential shaft 3 and the rotating shaft 13 are coaxially arranged, and the rotating shaft 13 can rotate freely around the central axis. Those skilled in the art will understand that the circumferential shaft 3 can also be directly rotatably connected between the two supports 12; that is, the bearing mechanism does not include the rotating shaft 13; for example, the two supports 12 can each have through holes, and the two ends of the circumferential shaft 3 can extend into the through holes and be rotatably connected within the through holes.

[0083] The second fixing mechanism 4 includes a first transmission rod 41, a fixing base 42, and a second carrier plate 43. The first transmission rod 41 is connected to a first driving member 5; the first driving member 5 drives the first transmission rod 41 to move back and forth in a direction close to or away from the first driving member 5, thereby causing the test object 1 to slide around the surrounding shaft 3. The fixing base 42 is fixed to the first transmission rod 41; the second carrier plate 43 is fixed to the fixing base 42 and is used to fix the second end b of the test object 1. The second end of the tension balancing element 6 is fixed to the second carrier plate 43, and the portion of the tension balancing element 6 located between the second fixing shaft 8 and the second carrier plate 43 has its plane flush with the plane of the second carrier plate 43, facilitating alignment with the second end b of the test object 1, thus saving energy consumption of the first driving member 5 while enabling the test object 1 to slide.

[0084] The first driving component 5 is disposed on the first support plate 11. In some specific embodiments, the sliding test device further includes a control device 10, which includes a control unit and a display unit. The control unit is connected to the first driving component 5 and is used to control the first driving component 5 to operate according to set parameters. The set parameters may include power, sliding speed, working time, etc. The sliding parameters can be set such that the sliding speed ranges from 0 mm / s to 60 mm / s, and the number of sliding cycles ranges from 5 to 100000 cycles.

[0085] The display unit is electrically connected to the tension detection element 9 and is used to display the tensile force when the sliding test device is working. The display unit can also simultaneously display real-time tensile force data, real-time speed data, and sliding test parameters.

[0086] In some embodiments, such as Figure 1 As shown, the slip test device also includes: a tension balancing element 6, a first fixed shaft 7, and a second fixed shaft 8.

[0087] The tension balancing element 6 is connected at both ends to the first fixing mechanism 2 and the second fixing mechanism 4, respectively, and is used to balance the tensile force on the first end a and the second end b of the test object 1 during the sliding test. Specifically, the tension balancing element 6 can be an elastic element, such as a spring or a belt.

[0088] The first fixed shaft 7 is disposed on the second support plate 14 of the support mechanism. The second fixed shaft 8 is disposed at a distance from the first fixed shaft 7 and is disposed on the support mechanism through a support frame. The first end of the tension balancing element 6 passes around the first fixed shaft 7 and is connected to the first fixing mechanism 2, and the second end of the tension balancing element 6 passes around the second fixed shaft 8 and is connected to the second fixing mechanism 4.

[0089] Specifically, the lines connecting the pivot 3, the first fixed pivot 7, and the second fixed pivot 8 form an equilateral triangle. The first fixed pivot 7 and / or the second fixed pivot 8 are rotatably connected to the load-bearing mechanism; thus, the sliding resistance between the tension balancing element 6 and the first fixed pivot 7 and / or the second fixed pivot 8 can be reduced.

[0090] Of course, those skilled in the art will understand that the sliding test device may also omit the first fixed shaft 7 and / or the second fixed shaft 8, and the two ends of the tension balancing element 6 may be directly connected to the first fixed mechanism 2 and the second fixed mechanism 4 respectively.

[0091] In some specific embodiments, the slip test device further includes a tension detection element 9 and a tensioning mechanism (not shown). The tension detection element 9 is connected to the first fixing mechanism 2 and the tension balancing element 6, respectively, and is used to detect the tensile force on the test object 1 during the slip test.

[0092] Specifically, the tension detection element 9 is a tension gauge, and the sensing element of the tension gauge is a spring; of course, the tension detection element 9 can also be other existing structural components for detecting stress. The specific construction and installation method of the tension gauge and structural components are not described in detail here; one can directly purchase a commercially available tension gauge and install it according to its specific type. Specifically, the adjustable range of tension is 0N to 500N.

[0093] Tension balancing element 6 is partially wound around the tensioning mechanism, which adjusts the tension of tension balancing element 6 based on the difference between the tensile force and a preset tensile force. Those skilled in the art will understand that after repeated stretching of tension balancing element 6 over a long period, it will undergo irreversible elastic deformation; for example, the belt may lengthen. In this case, the tension balancing element 6 is tightened based on the change in tensile force detected by tension detection element 9. This tightening can be done manually. Alternatively, the tensioning mechanism can be automated; for example, when the tensioning mechanism is connected to tension detection element 9, it tightens tension balancing element 6 in response to a difference between the tensile force and a preset tensile force exceeding a preset threshold. It is understood that in practical applications, operators manipulate the tensioning mechanism based on data directly observed from the display unit.

[0094] In the specific implementation process, the sliding test device can be made into an equipment. On the one hand, the sliding test device can be set up at room temperature. On the other hand, a temperature and humidity control system can be connected to the control device 10 to adjust the temperature and humidity in the test chamber where the test environment of the test object 1 is located, thereby forming a high temperature or low temperature sliding test device.

[0095] This embodiment provides a sliding test device. The device includes a support mechanism and a first fixing mechanism 2 to fix the first end a of the test object 1; a second fixing mechanism 4 to fix the second end b of the test object 1; and a winding shaft 3 so that, during the sliding test, the middle portion of the test object 1 is wound around the outer circumference of the winding shaft 3, with the angle between the line connecting the first fixing mechanism 2 and the winding shaft 3 and the line connecting the second fixing mechanism 4 and the winding shaft 3 controlled to be greater than 0° and less than 180°. Simultaneously, a first driving member 5 connected to the second fixing mechanism 4 is provided to drive the second fixing mechanism 4 to move, thereby causing the test object 1 to repeatedly bend and slide relative to the winding shaft 3, thus verifying the reliability of the test object 1. Furthermore, a tension balancing element 6 is provided and connected to both the first fixing mechanism 2 and the second fixing mechanism 4 to balance the tensile force on the first end a and the second end b of the test object 1 during the sliding test. In addition, it includes a tension detection element 9 and a tensioning mechanism, so as to detect the tensile force on the test object 1 during the sliding test by the tension detection element 9; and to adjust the tightness of the tension balancing element 6 according to the difference between the tensile force and the preset tensile force by the tensioning mechanism, so as to ensure that the tensile force on the first end a and the second end b of the test object 1 is always the same during repeated sliding tests.

[0096] In another embodiment, see Figure 2 , Figure 2 This is a schematic diagram of another sliding test device provided in an embodiment of this application. The sliding test device does not include the tension balancing element 6. Specifically, the sliding test device includes a bearing mechanism, a first fixing mechanism 2, a winding shaft 3, a second fixing mechanism 4, a first driving member 5, a tension detection element 9, and a compensation mechanism.

[0097] The specific structures of the bearing mechanism, the first fixing mechanism 2, the winding shaft 3, the second fixing mechanism 4, the first driving component 5, and the tension detection element 9, as well as their interconnections, can be found in the relevant textual descriptions of the slip test device provided in the above embodiments, and can achieve the same or similar technical effects, so they will not be repeated here.

[0098] One end of the tension detection element 9 is connected to the first fixing mechanism 2, and the other end is connected to the compensation mechanism. The tension detection element 9 is used to detect the tensile force on the test object 1 during the sliding test. The compensation mechanism is used to drive the tension detection element 9 to move towards or away from the first fixing mechanism 2 according to the difference between the tensile force and the preset tensile force, so that the difference between the tensile force on the test object 1 and the preset tensile force is within a threshold range. Specifically, the threshold range is within ±1.5%.

[0099] Specifically, the compensation mechanism includes a second driving member 16 and a second transmission rod. The two ends of the second transmission rod are connected to the second driving member 16 and the tension detection element 9, respectively. The second driving member 16 is disposed on the second bearing plate 14 of the bearing mechanism and is electrically connected to the tension detection element 9. The second driving member 16 drives the second transmission rod to move towards or away from the second driving member 16 according to the difference between the tensile force and the preset tensile force, thereby driving the tension detection element 9 to move towards or away from the first fixing mechanism 2, so that the difference between the tensile force on the test object 1 and the preset tensile force is within a threshold range. Specifically, when the test object 1 accelerates towards the second fixing mechanism 4, the second driving member 16 drives the tension detection element 9 to move towards the first fixing mechanism 2; when the test object 1 decelerates towards the second fixing mechanism 4, the second driving member 16 drives the tension detection element 9 to move away from the first fixing mechanism 2.

[0100] In a specific embodiment, the second driving member 16 can be electrically connected to the control unit of the control device 10, so that the control unit can control the second driving member 16 to drive the second transmission rod to move according to set parameters. The set parameters may include sliding acceleration, deceleration parameters, working time, etc. The second driving member 16 can also be a motor.

[0101] Compared to the sliding test device provided in the previous embodiment, the sliding test device provided in this embodiment has a compensation mechanism. The compensation mechanism drives the tension detection element 9 to move toward or away from the first fixing mechanism 2 according to the difference between the tension force detected by the tension detection element 9 and the preset tension force. This keeps the difference between the tension force and the preset tension force within a threshold range, ensuring that the test object 1 is subjected to uniform force during repeated sliding, improving the accuracy of the test results, and further improving the reliability of the test results of the test object 1.

[0102] The slip testing device of this application can verify the reliability of the slippage of the test object 1 under various test conditions. For example, it can verify the reliability of the slippage of the test object 1 under normal temperature, low temperature, and high temperature and high humidity conditions. Specifically, a temperature and humidity control system can be connected to the control device 10 to adjust the temperature and humidity inside the test chamber where the test environment of the test object 1 is located. In addition, the slip testing device can take further steps based on whether the test results meet the user requirements. If the test results are normal, it indicates that the test object 1 meets the customer requirements and is a qualified and reliable product with good performance. If the results are abnormal, the test object will be analyzed and optimized.

[0103] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A slip testing device for performing slip testing on an object to be tested; characterized in that, The slip testing device includes: Bearing mechanism; The first fixing mechanism is slidably connected to the bearing mechanism and is used to fix the first end of the object to be tested; A winding shaft is mounted on the bearing mechanism; during the sliding test of the test object, the middle part of the test object is wound around the outer circumferential surface of the winding shaft; The second fixing mechanism is used to fix the second end of the test object and is movable relative to the bearing mechanism; wherein the angle between the line connecting the first fixing mechanism and the winding axis and the line connecting the second fixing mechanism and the winding axis is greater than 0° and less than 180°. The first driving component is connected to the second fixing mechanism and is used to drive the second fixing mechanism to move so that during the sliding test, the test object slides back and forth relative to the winding axis, and the winding axis rotates together with the test object; A tension balancing element is connected to the first fixing mechanism and the second fixing mechanism respectively, and is used to balance the tensile force on the first end and the second end of the test object during the sliding test, so that the tensile force on the first end and the second end of the test object is the same. The bearing mechanism includes: A first support plate, wherein the first driving component is disposed on the first support plate; Two supports are disposed opposite to each other on the first support plate; the two ends of the winding shaft are respectively rolledly connected to the two supports; A rotating shaft is fixed between the two supports and coaxially arranged with the winding shaft; so that during the sliding test, the winding shaft rotates together with the test object, so that the test object slides relative to the winding shaft. The second support plate is disposed on the rotating shaft, and the plane on which the second support plate is located is inclined at a preset angle to the first support plate. The second support plate is rotatably connected to the rotating shaft to adjust the tilt angle between the plane on which the second support plate is located and the first support plate and the degree of bending of the test object. The first fixing mechanism is slidably connected to the second support plate, and the side surface of the first fixing mechanism away from the second support plate is tangent to the outer peripheral surface of the rotating shaft.

2. The slip testing device according to claim 1, characterized in that, The slip testing device also includes: A first fixed shaft is disposed on the bearing mechanism; The second fixed shaft is spaced apart from the first fixed shaft and is disposed on the bearing mechanism; the first end of the tension balancing element bypasses the first fixed shaft and is connected to the first fixing mechanism, and the second end of the tension balancing element bypasses the second fixed shaft and is connected to the second fixing mechanism.

3. The slip testing device according to claim 2, characterized in that, The winding axis, the first fixed axis, and the second fixed axis are arranged in an equilateral triangle.

4. The slip testing device according to claim 2, characterized in that, The first fixed shaft is rotatably connected to the bearing mechanism; and / or the second fixed shaft is rotatably connected to the bearing mechanism.

5. The slip testing device according to claim 2, characterized in that, Also includes: The tension detection element is connected to the first fixing mechanism and the tension balancing element respectively, and is used to detect the tensile force on the test object during the sliding test; The tensioning mechanism has a tension balancing element partially wound around it. The tensioning mechanism is used to adjust the tension of the tension balancing element according to the difference between the tension force and the preset tension force.

6. The slip testing device according to claim 5, characterized in that, The tensioning mechanism is connected to the tension detection element. When the difference between the tensile force and the preset tensile force is greater than a preset threshold, the tensioning mechanism tightens the tension balancing element.

7. The slip testing device according to claim 6, characterized in that, The tension detection element is a tension meter.

8. The slip testing device according to claim 6, characterized in that, The tension balancing element is an elastic component, and the elastic component is a belt.

9. The slip testing device according to claim 6, characterized in that, The slip testing device further includes a control device, which includes a control unit and a display unit. The control unit is connected to the first driving component and is used to control the first driving component to work according to set parameters. The display unit is electrically connected to the tension detection element and is used to display the tensile force.

10. The slip testing device according to claim 2, characterized in that, The second support plate is provided with a sliding groove; the first fixing mechanism includes: The slider is slidably connected to the groove on the second support plate; The first carrier plate is fixedly connected to the slider and is used to fix the first end of the object to be tested.

11. The slip testing device according to claim 10, characterized in that, The extension direction of the groove is parallel to the length direction of the object under test.

12. The slip testing device according to claim 10, characterized in that, The second fixing mechanism includes: A first transmission rod is connected to the first driving member; the first driving member drives the first transmission rod to move back and forth in a direction that is close to or away from the first driving member. A fixed base is fixed to the first transmission rod; The second carrier plate is fixed on the mounting base and is used to fix the second end of the object to be tested.

13. The slip testing device according to claim 12, characterized in that, The second end of the tension balancing element is fixed to the second carrier plate, and the portion of the tension balancing element located between the second fixed shaft and the second carrier plate has a plane that is flush with the plane of the second carrier plate.

14. The slip testing device according to claim 13, characterized in that, The supporting mechanism further includes: at least one limiting plate, disposed on the first supporting plate and located on one or both sides of the two supports; One of the limiting plate and the second bearing plate has an arc-shaped groove, and the other has a protrusion that matches the arc-shaped groove. The protrusion is embedded in the arc-shaped groove to limit the rotation angle of the second bearing plate.

15. The slip testing device according to claim 14, characterized in that, The arc-shaped groove is located on the limiting plate.

16. The slip testing device according to claim 1, characterized in that, Also includes: A tension detection element, one end of which is connected to the first fixing mechanism, is used to detect the tensile force on the test object during the sliding test. A compensation mechanism, connected to the tension detection element, is used to drive the tension detection element toward or away from the first fixing mechanism according to the difference between the tensile force and the preset tensile force, so that the difference between the tensile force and the preset tensile force is within a threshold range.

17. The slip testing device according to claim 16, characterized in that, The compensation mechanism includes: The second driving component is disposed on the bearing mechanism and electrically connected to the tension detection element; The second transmission rod is connected to the second driving component and the tension detection element, respectively. The second driving member is used to drive the second transmission rod to move in a direction toward or away from the second driving member according to the difference between the tensile force and the preset tensile force, so as to drive the tension detection element to move toward or away from the first fixing mechanism.

Images