Linear friction device for paint detection experiment

Abstract

The utility model relates to the technical field of paint surface detection, in particular to a linear friction device for a paint detection experiment. The linear friction device for the paint detection experiment comprises a mounting bracket which is fixedly connected to a base. The friction roller structure comprises a supporting frame and a friction roller body of a cylindrical structure. The supporting frame is installed on the installation support in a liftable and sliding mode, and the friction roller body is rotationally connected to the supporting frame. And the first rotation driving piece is mounted on the supporting frame and is in transmission connection with the friction roller structure through a transmission structure. And the lifting driving piece is mounted on the mounting bracket, and the output end is fixedly connected with the supporting frame. And the operating platform is arranged on the base in a sliding manner, and a clamping piece for fixing the paint surface sample is arranged on the operating platform. And the sliding push-pull structure is installed on the base and connected with the operation platform, and the sliding push-pull structure is used for driving the operation platform to linearly slide. Friction is performed through rotation of the friction roller body, friction traces are uniform, and friction amount detection and quality evaluation are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a paint surface detection technical field, concretely relates to a linear friction device for paint detection experiment. BACKGROUND

[0002] Camouflage paint is a special paint used to simulate and deceive enemy reconnaissance methods. This kind of paint is usually made of materials with special visual effects, which can simulate the appearance of various natural environments and object surfaces, so as to make the enemy unable to identify the target through naked eye observation. Camouflage paint is widely used in the military field, mainly used to protect military equipment and facilities, so that they are difficult to be found by the enemy during reconnaissance. The main features of camouflage paint are as follows: 1. High simulation: camouflage paint needs to simulate the appearance of various natural environments and object surfaces, so it usually has strong visual simulation ability, which makes it difficult for the human eye to distinguish between real targets and fake targets. 2. Anti-interference: In order to improve the camouflage effect, modern camouflage paint usually adds anti-radiation, anti-heat, anti-visible light and other anti-interference materials, so that the enemy detector is difficult to find the target. 3. Maintainability: Camouflage paint has strong maintainability, which can repair the damaged part to a certain extent to maintain the camouflage state. 4. Diversity: According to different camouflage targets and scenes, corresponding camouflage paint needs to be developed, so camouflage paint has high research and production cost. 5. Fast update: With the upgrading of enemy detection technology, camouflage paint also needs to be updated constantly to adapt to new detection means. China has rich research and application experience in the field of camouflage paint, and has successfully developed a variety of high-performance camouflage paint to provide effective protection for military equipment.

[0003] Coating detection is the process of testing the technical indicators of coating products. Here are some common coating detection methods: 1. Appearance detection: check the color, odor, density, viscosity, and other physical properties of the coating, as well as whether there are bubbles, precipitates, and other defects. 2. Color difference detection: detect the color deviation of the coating under different light sources, and whether it meets the specified color difference range. 3. Weather resistance detection: check the performance of the coating under different weather conditions (such as sunlight, rain, cold, etc.), whether there are problems such as fading, chalking, cracking, etc. 4. Adhesion detection: check the adhesion between the coating and the surface of the coated object, including whether the coating is uniform and whether it will fall off, etc. 5. Wear resistance detection: check whether the coating will appear wear, peeling, blistering, and other problems during use. 6. Corrosion resistance detection: check the resistance of the coating when it comes into contact with acids, bases, salts, and other chemicals. 7. Flame retardancy detection: check the stability of the coating under burning conditions, whether it will produce smoke, toxic gas, and other problems. 8. Impact resistance detection: check the durability of the coating when it is impacted. 9. Rust resistance detection: check the rust resistance of the coating when it comes into contact with water or a humid environment. The above are some common coating detection methods, of course, there are also some special detection methods, which need to be selected according to the characteristics and use requirements of the coating product.

[0004] The existing paint surface friction device is a friction plate that reciprocally slides with the paint surface to perform friction. Such friction marks are not uniform in friction amount, resulting in inaccurate evaluation. Practical new type content

[0005] To solve the above technical problems, the utility model provides a linear friction device for paint detection experiment, the linear friction device for paint detection experiment includes:

[0006] The base;

[0007] The mounting bracket is fixedly connected to the base;

[0008] The friction roller structure includes a support frame and a cylindrical friction roller body provided with a friction layer on the side surface; the support frame is slidably installed on the mounting bracket, and the friction roller body is rotatably connected to the support frame;

[0009] The first rotating drive member is installed on the support frame and is in transmission connection with the friction roller structure through the transmission structure;

[0010] The lifting drive member is installed on the mounting bracket, the output end is fixedly connected with the support frame, and is used for driving the friction roller structure to lift; the output end of the lifting drive member and the support frame are provided with a pressure sensor for sensing the friction pressure;

[0011] The operation platform is slidably placed on the base, and the operation platform is provided with a clamping piece for fixing the paint surface sample;

[0012] The sliding-pushing structure is installed on the base and connected with the operation platform, and is used for driving the operation platform to slide linearly.

[0013] Preferably, the support frame is provided with a replacement transmission structure facilitating replacement of the friction roller body.

[0014] Preferably, the replacement transmission structure comprises a bearing, a ridge slot and a threaded sleeve, the support frame is a gantry structure, one side of the support frame is provided with the bearing, the central shaft of the transmission structure is coaxially fixedly connected to the inside of the inner ring of the bearing, the central position of the central shaft of the transmission structure is provided with the ridge slot, the other side of the support frame is provided with a through hole, the inside of the through hole is threadedly connected with the threaded sleeve, the inside of the threaded sleeve is provided with the bearing, the central shaft position of the bearing is fixedly connected with the ridge slot, the threaded sleeve is coaxially fixedly connected with a rotating part, the two ends of the friction roller body are coaxially fixedly connected with a polygonal prism, and the polygonal prism is fitted and nested in the inside of the ridge slot.

[0015] Preferably, the inside wall of the support frame corresponding to the threaded sleeve is provided with a strip slot facilitating installation of the friction roller body.

[0016] Preferably, the rotating part is a rotating disc, and the rotating disc is coaxially fixedly connected with the threaded sleeve.

[0017] Preferably, the mounting bracket is provided with a lifting groove, a guide rod is fixedly arranged in the inside of the lifting groove, and the support frame is slidingly sleeved on the guide rod.

[0018] Preferably, the clamping piece comprises two oppositely arranged clamping units, and each clamping unit comprises a screw rod and a sliding rod, the sliding rod is placed on the operation platform, one end of the screw rod is rotatably connected to the sliding rod, the screw rod is fitted and nested in the edge of the operation platform, and the other end of the screw rod is fixedly connected with a screwing part.

[0019] Preferably, the upper surface of the base is fixedly provided with a guide rail, the setting direction of the guide rail is consistent with the sliding direction of the operation platform, and the operation platform is slidingly placed on the guide rail.

[0020] Preferably, the sliding-pushing structure comprises a lead screw and a second rotating driving piece, the lead screw is rotatably connected to the base and is consistent in direction with the operation platform, the operation platform is fitted and nested on the lead screw, and the second rotating driving piece is in transmission connection with the lead screw.

[0021] The technical effect and advantages of the utility model are as follows: the friction roller body is rotated to perform friction, then the second rotating driving piece is driven to form linear friction marks, the friction marks formed are uniform in friction amount, are convenient to observe, can adapt to the paint surface sample of an inclined plane, the detection is fast, and the friction amount detection and quality evaluation in the later period are convenient. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1A linear friction device for paint detection experiment is provided with the utility model.

[0023] Figure 2 A linear friction device for paint detection experiment is provided with the utility model.

[0024] Figure 3 For Figure 2 The partial sectional structure schematic view of A-A section.

[0025] Figure 4 A linear friction device for paint detection experiment is provided with the utility model.

[0026] Figure 5 A linear friction device for paint detection experiment is provided with the utility model.

[0027] The drawing mark explanation: pedestal 1, installation support 2, lifting drive piece 3, lifting groove 4, guide rod 5, first rotation drive piece 6, friction roller structure 7, operation platform 8, guide rail 9, clamping piece 10, screw rod 11, second rotation drive piece 12, support frame 13, belt pulley 14, friction roller body 15, multi-prism 16, rotating disc 17, threaded sleeve 18, bearing 19, edge groove 20. DETAILED DESCRIPTION

[0028] Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present disclosure and cannot be understood as a limitation of the present disclosure. On the contrary, the embodiments of the present disclosure include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0029] Embodiment 1

[0030] Reference Figures 1-3 In the present embodiment, a linear friction device for paint detection experiment is provided for linear friction of paint surface samples and forming linear traces with uniform friction amount. The linear friction device for paint detection experiment can include:

[0031] Pedestal 1 is used to form a support base. Pedestal 1 can be a horizontally placed flat plate structure with a large support area to form a stable support surface. Pedestal 1 can also be a structure composed of a flat plate and support feet, which will not be described in detail here.

[0032] The mounting bracket 2 is fixedly connected to the base 1, facilitating the installation and support of components. The mounting bracket 2 can be a gantry structure. It can also be a combination structure of an L-shaped frame and a gantry structure. The gantry structure part is consistent with the friction direction, which can increase the stability and operation space.

[0033] The friction roller structure 7 includes a support frame 13 and a cylindrical friction roller body 15 provided with a friction layer on the side surface. The friction roller structure 7 is slidably installed on the mounting bracket 2 for contacting and rubbing the paint sample by rotating the friction roller body 15. The support frame 13 is slidably connected to the mounting bracket 2, and the friction roller body 15 is rotatably connected to the support frame 13. The friction roughness of the friction layer on the side surface of the friction roller body 15 can be set according to actual conditions, which will not be described in detail here. In order to facilitate the replacement of the friction roller body 15 and adapt to different roughness detection, the support frame 13 can be provided with a replacement transmission structure. The replacement transmission structure can quickly complete the replacement of the friction roller body 15. Reference Figures 4-5 The replacement transmission structure can include a bearing 19, a rib groove 20, and a threaded sleeve 18. The support frame 13 can be a gantry structure with an inverted concave structure cross-section. One side of the support frame 13 is provided with a bearing 19. The center shaft of the transmission structure is coaxially fixedly connected to the inside of the inner ring of the bearing 19. The center position of the center shaft of the transmission structure is provided with a rib groove 20. The other side of the support frame 13 is provided with a through hole. The inside of the through hole is threadedly connected with the threaded sleeve 18. The inside of the threaded sleeve 18 is provided with a bearing 19. The center shaft position of the bearing 19 is fixedly connected with the rib groove 20. The threaded sleeve 18 is coaxially fixedly connected with a rotating part. The two ends of the friction roller body 15 are coaxially fixedly connected with a multi-prism 16. The multi-prism 16 can be nested in the inside of the rib groove 20. By rotating the threaded sleeve 18 through the rotating part, the threaded sleeve 18 rotates, thereby increasing the distance between the two bearings 19, so that the distance is greater than the length between the two multi-prisms 16. The friction roller body 15 is placed between the support frames 13. By reversing the threaded sleeve 18 through the rotating part, the two bearings 19 are brought together, and the two multi-prisms 16 are embedded in the inside of the two rib grooves 20, thereby completing the installation of the friction roller body 15. The inside wall of the support frame 13 corresponding to the threaded sleeve 18 is provided with a slot. The slot facilitates the installation of the friction roller body 15, which will not be described in detail here. The friction roller body 15 is driven by rotating through the transmission structure. The rotation of the threaded sleeve 18 can be limited by the threaded end to avoid the rotation of the threaded sleeve 18 with the friction roller body 15, which will not be described in detail here. The rotating part can be a turntable 17. The threaded sleeve 18 is rotated by rotating the turntable 17, which is convenient to rotate. Of course, the rotating part can also have a hole, which will not be described in detail here.

[0034] The first rotating driving member 6 is installed on the support frame 13 and is in transmission connection with the friction roller structure 7 through a transmission structure. Under the driving of the first rotating driving member 6, the friction roller body 15 can be rotated through the transmission structure, so as to complete the friction. The transmission structure can be a belt pulley 14 combination structure. The belt pulley 14 can include two, and the two belt pulleys 14 are coaxially fixedly connected with the output shaft of the first rotating driving member 6 and the inner ring of the bearing 19 respectively. Details are not described herein.

[0035] The lifting driving member 3 is installed on the mounting bracket 2 and is fixedly connected with the support frame 13 at the output end, and is used for driving the friction roller structure 7 to lift. The lifting driving member 3 can be an electric telescopic rod, a hydraulic rod, etc. Details are not described herein. A pressure sensor for sensing friction pressure can be arranged between the output end of the lifting driving member 3 and the support frame 13. The friction force of the friction roller structure 7 can be sensed through the pressure sensor, and then the quantitative pressure control is performed. The mounting bracket 2 can be provided with a lifting groove 4, and the guiding rod 5 is fixedly arranged in the lifting groove 4. The support frame 13 is slidingly sleeved on the guiding rod 5, so that the support frame 13 is lifted stably.

[0036] The operation platform 8 is slidingly placed on the base 1. The operation platform 8 can be a horizontally placed plate structure. The operation platform 8 is used for placing a paint surface sample. The operation platform 8 is provided with a clamping piece 10 for fixing the paint surface sample. When the paint surface sample needs to be detected, the paint surface sample can be fixed on the operation platform 8 through the clamping piece 10. The clamping piece 10 can be two oppositely arranged clamping units. The clamping unit can include a screw rod and a sliding rod. The sliding rod is placed on the operation platform 8. One end of the screw rod is rotatably connected with the sliding rod. The screw rod is fitted in the edge of the operation platform 8. The other end of the screw rod is fixedly connected with a twisting part. By rotating the twisting part, the screw rod can be rotated, so as to adjust the position of the sliding rod. The two sliding rods are relatively close to each other to complete clamping, and are separated to complete release. The base 1 is fixedly provided with a guide rail 9 on the upper surface. The arrangement direction of the guide rail 9 is consistent with the sliding direction of the operation platform 8. The operation platform 8 can be slidingly placed on the guide rail 9. The guide rail 9 can be provided with two parallel guide rails. Details are not described herein.

[0037] The sliding and pulling structure is installed on the base 1 and connected with the operation platform 8, and is used to drive the linear sliding of the operation platform 8. The sliding and pulling structure can include a screw rod 11 and a second rotating driving element 12. The screw rod 11 is rotationally connected on the base 1 and has the same direction as the operation platform 8. The operation platform 8 is fitted and nested on the screw rod 11. The second rotating driving element 12 can be a motor or a combination of a motor and a belt. The second rotating driving element 12 is in transmission connection with the screw rod 11. The second rotating driving element 12 drives the rotation of the screw rod 11, thereby driving the linear sliding of the operation platform 8, so that the paint surface of the paint surface sample on the operation platform 8 moves relative to the friction roller structure 7, thereby completing the friction.

[0038] The lifting driving element 3, the second rotating driving element 12 and the pressure sensor can be electrically connected with a controller. The controller can be used to control the forward and reverse driving of the second rotating driving element 12, the extension and contraction of the lifting driving element 3 and the pressure of the pressure sensor. When the paint surface sample needs to be detected, the paint surface sample is placed on the operation platform 8, and then the paint surface sample is fixed on the operation platform 8 by the clamping element 10. Then, according to the detection requirement, the friction pressure F is set by the controller. The detection pressure corresponding to various paint surface samples is the prior art, which is not described in detail here. Then, the controller controls the extension of the lifting driving element 3 to make the friction roller structure 7 contact with the paint surface sample on the operation platform 8, and the lifting driving element 3 stops driving when the pressure sensor is F. When the pressure is less than F, the lifting driving element 3 is extended, and when the pressure is greater than F, the lifting driving element 3 is shortened. The specific details are not described here. Then, the first rotating driving element 6 is started and drives the rotation of the friction roller structure 7 to rub the paint surface sample. The rotation speed of the friction roller structure 7 and the driving speed of the second rotating driving element 12 are controlled according to the preset friction amount. Of course, the control can also be performed by experience. The specific subject is not the protection subject of the present application, and is not described here. The friction is performed by the friction roller structure 7, and then the linear friction trace is formed by cooperating with the second rotating driving element 12. The friction amount of the formed friction trace is uniform and easy to observe. The paint surface sample of the inclined surface can be adapted, and the detection is fast.

[0039] It should be understood that the various forms of the flow shown above can be reordered, added to, or deleted from. For example, the steps described in the present disclosure can be executed in parallel, in sequence, or in different orders, as long as the desired results of the technical solutions of the present disclosure can be achieved, which are not limited herein.

[0040] The above specific embodiments do not constitute a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent replacement and improvement made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A linear tribometer for paint detection experiments, characterized in that, The paint detection experiment linear friction device comprises: a base (1); a mounting bracket (2) fixedly connected to the base (1); a friction roller structure (7) comprising a support frame (13) and a cylindrical friction roller body (15) provided with a friction layer on the side surface; the support frame (13) is slidably installed on the mounting bracket (2), and the friction roller body (15) is rotatably connected to the support frame (13); a first rotating driving member (6) installed on the support frame (13) and in transmission connection with the friction roller structure (7) through a transmission structure; a lifting driving member (3) installed on the mounting bracket (2) and fixedly connected to the support frame (13) at the output end, used for driving the friction roller structure (7) to lift; a pressure sensor is arranged between the output end of the lifting driving member (3) and the support frame (13) for sensing the friction pressure; an operation platform (8) slidably placed on the base (1), and a clamping member (10) for fixing a paint sample is arranged on the operation platform (8); a sliding push-pull structure installed on the base (1) and connected to the operation platform (8), used for driving the operation platform (8) to linearly slide.

2. A linear friction device for paint detection experiments according to claim 1, characterized in that, The support frame (13) is provided with a replacement transmission structure for facilitating replacement of the friction roller body (15).

3. A linear friction device for paint detection experiments according to claim 2, characterized in that The replacement transmission structure comprises a bearing (19), a rib groove (20) and a threaded sleeve (18), the support frame (13) is a gantry structure, one side of the support frame (13) is provided with the bearing (19), the center shaft of the transmission structure is coaxially fixedly connected to the inner part of the inner ring of the bearing (19), the center position of the center shaft of the transmission structure is provided with the rib groove (20), the other side of the support frame (13) is provided with a through hole, the inside of the through hole is threadedly connected with the threaded sleeve (18), the inside of the threaded sleeve (18) is provided with the bearing (19), the center shaft position of the bearing (19) is fixedly connected with the rib groove (20), the threaded sleeve (18) is coaxially fixedly connected with a rotating part, the two ends of the friction roller body (15) are coaxially fixedly connected with a polygonal column (16), and the polygonal column (16) is fitted and nested in the inside of the rib groove (20).

4. A linear friction device for paint detection experiments according to claim 3, characterized in that The inside wall of the support frame (13) corresponding to the threaded sleeve (18) is provided with a strip groove for facilitating installation of the friction roller body (15).

5. A linear friction device for paint detection experiments according to claim 3, characterized in that The rotating part is a rotating disc (17), and the rotating disc (17) is coaxially fixedly connected with the threaded sleeve (18).

6. A linear friction device for paint detection experiments according to claim 3, characterized in that The mounting bracket (2) is provided with a lifting groove (4), and a guide rod (5) is fixedly arranged in the inside of the lifting groove (4); the support frame (13) is slidably sleeved on the guide rod (5).

7. A linear friction device for paint detection experiments according to claim 1, characterized in that, The clamping member (10) comprises two oppositely arranged clamping units, each clamping unit comprising a screw rod and a sliding rod; the sliding rod is placed on the operation platform (8), one end of the screw rod is rotatably connected to the sliding rod, the screw rod is fitted and nested in the edge of the operation platform (8), and the other end of the screw rod is fixedly connected with a screwing part.

8. A linear friction device for paint detection experiments according to claim 1, characterized in that, The upper surface of the base (1) is fixedly provided with a guide rail (9), the arrangement direction of the guide rail (9) is consistent with the sliding direction of the operation platform (8), and the operation platform (8) is slidably placed on the guide rail (9).

9. A linear friction device for paint detection experiments according to claim 3, characterized in that, The sliding and pulling structure comprises a screw rod (11) and a second rotating driving member (12), the screw rod (11) is rotationally connected to the base (1) and its direction is consistent with the direction of the operation platform (8), the operation platform (8) is fitted and nested on the screw rod (11), and the second rotating driving member (12) is in transmission connection with the screw rod (11).

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