A device for detecting the wear resistance of a coated film layer

Abstract

This utility model relates to a wear resistance testing device for coated film layers, including a testing platform and a substrate horizontally rotatably mounted on the testing platform. A pneumatic gripper is mounted on the substrate. A friction testing mechanism is mounted on the testing platform and above the substrate. A driving mechanism is mounted on the testing platform and connected to the substrate. An impact testing mechanism is also mounted on the testing platform and connected to the driving mechanism via a transmission structure. This utility model can simultaneously perform sliding friction, rolling friction, and impact tests on a single testing platform, comprehensively simulating various wear types under complex working conditions, effectively solving the problem that traditional testing devices can only simulate single or simple wear modes. By driving the substrate to rotate through the driving mechanism, and coordinating the operation of the friction testing mechanism and the impact testing mechanism, a comprehensive evaluation of the coated film layer under multi-dimensional wear conditions can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of wear resistance testing technology, specifically a wear resistance testing device for coated films. Background Technology

[0002] In modern industrial production, coating technology is widely used in many fields, such as machinery manufacturing, electronic devices, and optical instruments, to improve the surface performance of materials. Among these applications, the wear resistance of the coating layer is crucial. Accurately testing the wear resistance of the coating layer is of great significance for quality control, product performance evaluation, and research and development improvements.

[0003] Currently, various devices exist on the market for testing the wear resistance of coated film layers. However, these devices exhibit numerous limitations in practical applications, particularly in simulating complex working conditions. For example, the Taber abrasion tester primarily assesses the wear resistance of the film layer by rotating a sample disk, causing the abrasive to rub against the film layer in multiple directions. While it can reflect the wear of the film layer under multi-directional friction conditions to some extent, its simulation effect is poor for multiple wear types present simultaneously in actual working conditions, such as sliding and rolling. The linear friction tester uses a reciprocating motion mode, causing the grinding head to repeatedly rub against the film layer along a straight path. This device is effective in simulating simple linear sliding wear, but it struggles to effectively simulate more complex composite wear scenarios, such as conditions involving both rolling and impact.

[0004] In practical industrial applications, existing wear resistance testing devices, due to limitations in their design principles, can only simulate single or simple wear types. They cannot comprehensively and realistically reproduce the complex wear conditions in actual use, resulting in significant deviations between the test results and the wear conditions in actual applications. This makes it difficult to accurately predict the service life and reliability of the coating layer in real environments, thereby affecting the accurate assessment and optimization of product quality. Summary of the Invention

[0005] The purpose of this invention is to provide a device for testing the wear resistance of coated films, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for testing the wear resistance of a coated film includes a testing stage and a substrate horizontally rotatably mounted on the testing stage. A pneumatic gripper is provided on the substrate for fixing the coated film onto the substrate.

[0008] A friction detection mechanism is provided on the testing platform and above the substrate. When the friction detection mechanism comes into contact with the coating layer fixed on the substrate and the substrate rotates, the friction detection mechanism can simultaneously perform sliding friction and rolling friction tests on the coating layer.

[0009] The detection platform is equipped with a driving mechanism, which is connected to the substrate. When the driving mechanism is running, the substrate will rotate.

[0010] The testing platform is also equipped with an impact testing mechanism, which is connected to the driving mechanism through a transmission structure. During the operation of the driving mechanism, the impact testing mechanism can continuously impact the coated film layer multiple times.

[0011] As a further embodiment of this utility model:

[0012] The friction detection mechanism includes a lifting plate and a cylinder. The lifting plate is vertically slidably disposed on the detection platform and is located directly above the base plate.

[0013] The cylinder is mounted on the testing platform, and the output end of the cylinder is connected to the top of the lifting plate.

[0014] As a further improvement of this utility model:

[0015] The bottom of the lifting plate is provided with a friction head, and the bottom of the lifting plate is also provided with a base;

[0016] A steel ball is rolled and fitted into the bottom of the base, and the bottom of the steel ball is at the same horizontal height as the bottom of the friction head.

[0017] As a further improvement of this utility model:

[0018] The impact testing mechanism includes a vertically arranged hammer rod and a sleeve slidably sleeved on the outer wall of the hammer rod. The sleeve is mounted on the testing platform via a support frame, and the hammer rod is located directly above the substrate.

[0019] A limiting ring is coaxially provided on the outer wall of the hammer rod, and the bottom surface of the limiting ring abuts against the inner bottom surface of the sleeve. A spring is sleeved on the outer wall of the hammer rod, and the two ends of the spring abut against the top surface of the limiting ring and the inner top surface of the sleeve, respectively. The spring is in a pre-compressed state, and the gap between the bottom of the hammer rod and the top surface of the substrate is less than the thickness of the coating layer.

[0020] As a further improvement of this utility model:

[0021] A rotating rod is horizontally rotatably provided between the testing platform and the support frame. A rotating seat is rotatably provided on the outer wall of the rotating rod. The rotating seat and the hammer rod are rotatably connected by a connecting rod.

[0022] The rotating base is provided with a stop bar, and a ring is coaxially provided on the outer wall of the rotating rod. A protruding post is provided on the circumferential surface of the ring. The protruding post cooperates with the stop bar. When the rotating rod rotates, the protruding post on the ring will drive the rotating base to rotate through the stop bar.

[0023] As a further improvement of this utility model:

[0024] The drive mechanism includes a motor and a drive wheel, and the motor is mounted on the detection platform;

[0025] The output end of the motor is connected to the bottom center of the base plate, and the drive wheel is coaxially disposed on the output end of the motor.

[0026] As a further improvement of this utility model:

[0027] The transmission structure includes a transmission shaft that is vertically rotatably mounted on the testing platform. A driven wheel is coaxially mounted at one end of the transmission shaft, and the driven wheel and the driving wheel are connected by a belt.

[0028] A first bevel gear is coaxially mounted on the other end of the drive shaft, and a second bevel gear is coaxially mounted on the rotating rod. The first and second bevel gears mesh with each other.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] This coating wear resistance testing device uses a testing platform as its base platform, on which a substrate is horizontally rotated. The substrate is driven to rotate stably at a set speed by a drive mechanism. The pneumatic grippers on the substrate can firmly clamp the coating layer to be tested, ensuring the stability of the coating layer during the test. After contacting the coating layer, the friction testing mechanism above the substrate can simultaneously perform sliding friction and rolling friction tests to comprehensively evaluate the wear resistance of the coating layer under combined friction conditions. In addition, the impact testing mechanism on the testing platform is connected to the drive mechanism through a transmission structure. When the drive mechanism is running, the impact testing mechanism can continuously impact the coating layer multiple times.

[0031] This application enables simultaneous sliding friction, rolling friction, and impact tests on a single testing platform, comprehensively simulating various wear types under complex working conditions. This effectively solves the problem that traditional testing devices can only simulate single or simple wear modes. By driving the substrate to rotate through a drive mechanism, and coordinating the operation of the friction testing mechanism and the impact testing mechanism, a comprehensive evaluation of the coating layer under multi-dimensional wear conditions can be achieved. This testing method, which comprehensively considers multiple wear factors, can more accurately reflect the wear resistance performance of the coating layer in practical applications. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a device for testing the wear resistance of a coated film.

[0033] Figure 2 This is a schematic diagram of the overall structure of an embodiment of a device for testing the wear resistance of a coated film layer from another perspective.

[0034] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0035] Figure 4 A cross-sectional view of the sleeve in one embodiment of the device for testing the wear resistance of a coated film.

[0036] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0037] Figure 6 This is another schematic diagram of the overall structure of an embodiment of a device for testing the wear resistance of a coated film.

[0038] Figure 7 A cross-sectional view of the testing stage and substrate in one embodiment of the device for testing the wear resistance of coated film layers.

[0039] Figure 8 for Figure 7 Enlarged view of point C.

[0040] Figure 9 This is a schematic diagram showing the impact testing mechanism in one embodiment of a device for testing the wear resistance of a coated film.

[0041] In the diagram: 1. Testing table; 2. Base plate; 3. Pneumatic gripper; 4. Lifting plate; 5. Cylinder; 6. Friction head; 7. Base; 8. Steel ball; 9. Hammer rod; 10. Sleeve; 11. Support frame; 12. Limiting ring; 13. Spring; 14. Rotating rod; 15. Rotary seat; 16. Connecting rod; 17. Stop rod; 18. Ring; 19. Protruding column; 20. Motor; 21. Driving wheel; 22. Transmission shaft; 23. Driven wheel; 24. Belt; 25. First bevel gear; 26. Second bevel gear. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] Furthermore, the elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0044] Please see Figures 1-9 In this embodiment of the present invention, a wear resistance testing device for a coated film includes a testing platform 1 and a substrate 2 horizontally rotatably mounted on the testing platform 1. A pneumatic gripper 3 is provided on the substrate 2, and the pneumatic gripper 3 is used to fix the coated film onto the substrate 2.

[0045] A friction detection mechanism is provided on the testing stage 1 and above the substrate 2. When the friction detection mechanism comes into contact with the coating layer fixed on the substrate 2 and the substrate 2 rotates, the friction detection mechanism can simultaneously perform sliding friction and rolling friction tests on the coating layer.

[0046] The detection stage 1 is equipped with a driving mechanism, which is connected to the substrate 2. When the driving mechanism is running, the substrate 2 will rotate.

[0047] The testing platform 1 is also equipped with an impact testing mechanism, which is connected to the driving mechanism through a transmission structure. During the operation of the driving mechanism, the impact testing mechanism can continuously impact the coated film layer multiple times.

[0048] In this scheme, the testing table 1 is the basic platform of the entire device. The substrate 2 is horizontally rotated on it. The substrate 2 achieves rotation through the drive mechanism. When the drive mechanism is running, the power is transmitted to the substrate 2, causing the substrate 2 to rotate stably at a set speed. The substrate 2 is equipped with a pneumatic gripper 3. When it is necessary to test the coating layer, the pneumatic gripper 3 is activated to firmly clamp and fix the coating layer to be tested on the substrate 2, ensuring that the coating layer will not be displaced or loosened during subsequent friction and impact tests.

[0049] Above the substrate 2, a friction detection mechanism is set on the detection stage 1. When the friction detection mechanism comes into contact with the coating layer fixed on the substrate 2, as the substrate 2 rotates, the friction detection mechanism begins to perform sliding friction and rolling friction tests on the coating layer simultaneously. On the one hand, it can simulate the sliding friction scenario, just like the wear caused by an object sliding on the coating surface; on the other hand, it can also realize rolling friction, similar to the wear situation when a rolling object comes into contact with the coating layer, so as to comprehensively evaluate the wear resistance of the coating layer under combined friction conditions.

[0050] Meanwhile, the testing station 1 is also equipped with an impact testing mechanism, which is connected to the drive mechanism via a transmission structure. When the drive mechanism operates, in addition to rotating the substrate, it also transmits the motion to the impact testing mechanism through the transmission structure. This allows the impact testing mechanism to perform continuous impact actions on the coating layer at a certain frequency and force, thereby simulating the impact wear that the coating layer may suffer in actual use, and further improving the comprehensive testing of the wear resistance of the coating layer. Through the coordinated operation of its various parts, the entire device achieves multi-dimensional testing of the wear resistance performance of the coating layer under complex working conditions.

[0051] As a further embodiment of this utility model, the friction detection mechanism includes a lifting plate 4 and a cylinder 5. The lifting plate 4 is vertically slidably disposed on the detection table 1, and the lifting plate 4 is located directly above the base plate 2.

[0052] The cylinder 5 is mounted on the testing platform 1, and the output end of the cylinder 5 is connected to the top of the lifting plate 4.

[0053] The bottom of the lifting plate 4 is provided with a friction head 6, and the bottom of the lifting plate 4 is also provided with a base 7;

[0054] A steel ball 8 is rolled and fitted at the bottom of the base 7, and the bottom of the steel ball 8 is at the same horizontal height as the bottom of the friction head 6.

[0055] In this embodiment, when the friction detection mechanism is running, the cylinder 5 is started, and its output end drives the lifting plate 4 connected to it to move vertically downward. The friction head 6 and the base 7 at the bottom of the lifting plate 4 move down synchronously until the friction head 6 contacts the coating layer fixed on the substrate 2. At this time, the steel ball 8 rolled and embedded at the bottom of the base 7 also contacts the surface of the coating layer, and the bottom of the steel ball 8 is at the same horizontal height as the bottom of the friction head 6.

[0056] When the substrate 2 rotates under the action of the driving mechanism, sliding friction is generated between the friction head 6 and the coating layer, simulating the wear scenario of an object sliding on the coating surface; at the same time, the steel ball 8 generates rolling friction with the coating layer under the constraint of the base 7, simulating the wear situation of a rolling object contacting the coating layer. Through the synergistic effect of the friction detection mechanism, sliding friction and rolling friction tests can be performed on the coating layer at the same time, and its wear resistance performance under combined friction conditions can be comprehensively evaluated.

[0057] As a further embodiment of the present invention, the impact testing mechanism includes a vertically arranged hammer rod 9 and a sleeve 10 slidably sleeved on the outer wall of the hammer rod 9. The sleeve 10 is arranged on the testing table 1 by a support frame 11, and the hammer rod 9 is located directly above the base plate 2.

[0058] A limiting ring 12 is coaxially provided on the outer wall of the hammer rod 9, and the bottom surface of the limiting ring 12 abuts against the inner bottom surface of the sleeve 10. A spring 13 is sleeved on the outer wall of the hammer rod 9, and the two ends of the spring 13 abut against the top surface of the limiting ring 12 and the inner top surface of the sleeve 10, respectively. The spring 13 is in a pre-compressed state, and the gap between the bottom of the hammer rod 9 and the top surface of the substrate 2 is less than the thickness of the coating layer.

[0059] A rotating rod 14 is rotatably provided between the testing table 1 and the support frame 11. A rotating seat 15 is rotatably provided on the outer wall of the rotating rod 14. The rotating seat 15 and the hammer rod 9 are rotatably connected by a connecting rod 16.

[0060] The rotating base 15 is provided with a stop bar 17, and the outer wall of the rotating rod 14 is coaxially provided with a ring 18. The circumferential surface of the ring 18 is provided with a protrusion 19. The protrusion 19 cooperates with the stop bar 17. When the rotating rod 14 rotates, the protrusion 19 on the ring 18 will drive the rotating base 15 to rotate through the stop bar 17.

[0061] In this embodiment, when the impact detection mechanism is running, the rotating rod 14 rotates under the drive mechanism, and the ring 18 coaxially fixed on its outer wall rotates accordingly. The protrusion 19 on the ring 18 cooperates with the stop bar 17 on the rotating seat 15, so that the rotating seat 15 drives one end of the connecting rod 16 to rotate during the rotation of the rotating rod 14. The other end of the connecting rod 16 is connected to the hammer rod 9, which drives the hammer rod 9 to move up and down reciprocally. The outer wall of the hammer rod 9 is fitted with a spring 13 in a pre-compressed state. Its two ends abut against the top surface of the limiting ring 12 and the inner top surface of the sleeve 10, respectively. The bottom surface of the limiting ring 12 abuts against the inner bottom surface of the sleeve 10. The sleeve 10 is fixed on the detection table 1 by the support frame 11. The gap between the bottom of the hammer rod 9 and the top surface of the substrate 2 is less than the thickness of the coating layer, ensuring that the hammer rod 9 continuously impacts the coating layer multiple times under the action of the spring force of the spring 13 and its own reciprocating motion, simulating the impact wear in actual working conditions.

[0062] As a further embodiment of this utility model, the driving mechanism includes a motor 20 and a drive wheel 21, wherein the motor 20 is mounted on the detection table 1;

[0063] The output end of the motor 20 is connected to the bottom center of the base plate 2, and the drive wheel 21 is coaxially disposed on the output end of the motor 20.

[0064] In this embodiment, the motor 20 is fixed on the testing table 1, and its output end is connected to the center of the bottom of the substrate 2. At the same time, the drive wheel 21 is coaxially fixed to the output end of the motor 20. When the motor 20 is running, its output end rotates, directly driving the substrate 2 to rotate. Simultaneously, the drive wheel 21 rotates together with the output end of the motor 20. This design makes the motor 20 the power source for driving the substrate 2 to rotate. The operation of the motor 20 controls the rotation speed and stability of the substrate 2, thereby providing a stable motion basis for the friction detection mechanism and the impact detection mechanism, and ensuring the coordinated operation of the entire testing device.

[0065] As a further embodiment of this utility model, the transmission structure includes a transmission shaft 22 that is vertically rotatably mounted on the testing table 1, and a driven wheel 23 is coaxially mounted at one end of the transmission shaft 22. The driven wheel 23 and the driving wheel 21 are connected by a belt 24.

[0066] The other end of the transmission shaft 22 is coaxially provided with a first bevel gear 25, and the rotating rod 14 is coaxially provided with a second bevel gear 26. The first bevel gear 25 and the second bevel gear 26 mesh with each other.

[0067] In this embodiment, when the motor 20 is running, its output end drives the drive wheel 21 to rotate. The drive wheel 21 drives the driven wheel 23 to rotate through the belt 24. The transmission shaft 22, which is coaxially fixed to the driven wheel 23, rotates accordingly. The first bevel gear 25 at the other end of the transmission shaft 22 meshes with the second bevel gear 26 on the rotating rod 14, thereby driving the rotating rod 14 to rotate. This transmission structure transmits the power of the motor 20 to the rotating rod 14, realizing the drive of the impact detection mechanism and coordinating it with the rotation of the base plate 2.

[0068] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0069] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for testing the wear resistance of a coated film, comprising a testing stage (1) and a substrate (2) horizontally rotatably mounted on the testing stage (1), characterized in that, The substrate (2) is provided with a pneumatic gripper (3), which is used to fix the coating layer on the substrate (2); A friction detection mechanism is provided on the testing platform (1) and above the substrate (2). When the friction detection mechanism comes into contact with the coating layer fixed on the substrate (2) and the substrate (2) rotates, the friction detection mechanism can simultaneously perform sliding friction and rolling friction tests on the coating layer. The detection stage (1) is provided with a driving mechanism, which is connected to the substrate (2). When the driving mechanism is running, the substrate (2) will rotate. The testing platform (1) is also equipped with an impact testing mechanism. The impact testing mechanism is connected to the driving mechanism through a transmission structure. During the operation of the driving mechanism, the impact testing mechanism can continuously impact the coating layer multiple times.

2. The wear resistance testing device for a coated film layer according to claim 1, characterized in that, The friction detection mechanism includes a lifting plate (4) and a cylinder (5). The lifting plate (4) is vertically slidably disposed on the detection table (1), and the lifting plate (4) is located directly above the base plate (2). The cylinder (5) is mounted on the testing platform (1), and the output end of the cylinder (5) is connected to the top of the lifting plate (4).

3. The wear resistance testing device for a coated film layer according to claim 2, characterized in that, The bottom of the lifting plate (4) is provided with a friction head (6), and the bottom of the lifting plate (4) is also provided with a base (7). The bottom of the base (7) is fitted with a steel ball (8), and the bottom of the steel ball (8) is at the same level as the bottom of the friction head (6).

4. The wear resistance testing device for a coated film layer according to claim 1, characterized in that, The impact testing mechanism includes a vertically arranged hammer rod (9) and a sleeve (10) slidably sleeved on the outer wall of the hammer rod (9). The sleeve (10) is set on the testing table (1) by a support frame (11), and the hammer rod (9) is located directly above the base plate (2). The outer wall of the hammer rod (9) is coaxially provided with a limiting ring (12), and the bottom surface of the limiting ring (12) abuts against the inner bottom surface of the sleeve (10). The outer wall of the hammer rod (9) is sleeved with a spring (13), and the two ends of the spring (13) abut against the top surface of the limiting ring (12) and the inner top surface of the sleeve (10), respectively. The spring (13) is in a pre-compression state, and the gap between the bottom of the hammer rod (9) and the top surface of the substrate (2) is less than the thickness of the coating layer.

5. The wear resistance testing device for a coated film layer according to claim 4, characterized in that, A rotating rod (14) is rotatably provided between the testing platform (1) and the support frame (11). A rotating seat (15) is rotatably provided on the outer wall of the rotating rod (14). The rotating seat (15) and the hammer rod (9) are rotatably connected by a connecting rod (16). The rotating base (15) is provided with a stop bar (17), and the outer wall of the rotating rod (14) is coaxially provided with a ring (18). The circumferential surface of the ring (18) is provided with a protrusion (19). The protrusion (19) cooperates with the stop bar (17). When the rotating rod (14) rotates, the protrusion (19) on the ring (18) will drive the rotating base (15) to rotate through the stop bar (17).

6. The wear resistance testing device for a coated film layer according to claim 5, characterized in that, The drive mechanism includes a motor (20) and a drive wheel (21), and the motor (20) is mounted on the detection table (1); The output end of the motor (20) is connected to the bottom center of the base plate (2), and the drive wheel (21) is coaxially arranged on the output end of the motor (20).

7. The wear resistance testing device for a coated film layer according to claim 6, characterized in that, The transmission structure includes a transmission shaft (22) that is vertically rotatably mounted on the testing table (1). One end of the transmission shaft (22) is coaxially provided with a driven wheel (23). The driven wheel (23) and the driving wheel (21) are connected by a belt (24). The other end of the transmission shaft (22) is coaxially provided with a first bevel gear (25), and the rotating rod (14) is coaxially provided with a second bevel gear (26). The first bevel gear (25) and the second bevel gear (26) mesh with each other.

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