Simple and reliable anti-fouling coating abrasion rate testing device

Abstract

The utility model relates to the technical field of coating performance testing, in particular to a simple and reliable device for testing the abrasion rate of an antifouling coating. The test device comprises a bracket, a rotary driving mechanism, a rotary drum, a sample carrier and a test water tank with an upward opening, the rotation driving mechanism is arranged on the support and provided with a rotating shaft. The end part of the drum is connected with the free end of the rotating shaft; the sample carrier is provided with a bearing plane for coating a sample, the sample carrier is detachably mounted on the rotary drum, the bearing plane protrudes out of the side surface of the rotary drum, and the bearing plane is parallel to the central axis of the rotating shaft; the area part for realizing the bearing plane can be regarded as rotating at the same linear speed to simulate the specific navigational speed of the ship, so that more test data can be acquired for measuring the abrasion rate, the test data is more accurate, the reference value is larger, the repeatability of the test result is high, the abrasion rate of the antifouling coating layer is conveniently obtained, and the application prospect is wide. And the most economical and reasonable film thickness design in engineering application is guided.

Description

Technical Field

[0001] The utility model relates to the technical field of coating performance testing, in particular to a simple and reliable antifouling coating abrasion rate testing device. Background Art

[0002] The abrasion rate of antifouling coatings is an important test result of coating performance. Some current test devices use the disc method to test the abrasion rate of antifouling coatings. Specifically, the coating to be tested is first applied to the disc test sample in the radial direction, and then the disc test sample is coaxially connected to the rotating shaft of the rotating mechanism, and the rotating mechanism drives the disc test sample to rotate at a preset speed. According to the change in coating thickness before and after operation, the abrasion rate of antifouling resin and coating can be calculated. However, since only the corresponding parallel points on both sides of the disc test sample are regarded as the same speed, the amount of test data is small, and it is difficult to provide data support for the design and adjustment of antifouling coating formulas, and it is not convenient to obtain the most economical and reasonable film thickness design for the engineering application of antifouling coatings. Utility Model Content

[0003] The main purpose of the utility model is to provide a simple and reliable antifouling coating abrasion rate testing device, which aims to collect more test data for abrasion rate measurement, ensure that the test data is more accurate and has greater reference value, and the experimental results have high repeatability, so as to facilitate the erosion rate of the antifouling coating layer and guide the most economical and reasonable film thickness design in engineering applications.

[0004] To achieve the above-mentioned purpose, the utility model proposes a simple and reliable anti-fouling coating abrasion rate testing device, comprising a bracket, a rotary drive mechanism, a rotating drum, a sample carrier and a test water trough with an open mouth facing upward; the rotary drive mechanism is arranged on the bracket, the rotary drive mechanism has a rotating shaft, and the rotating shaft has a free end arranged downward; the end of the rotating drum is connected to the free end of the rotating shaft to rotate with the rotating shaft; the sample carrier has a bearing plane for coating the sample, the sample carrier is detachably mounted on the rotating drum, and the bearing plane protrudes from the side surface of the rotating drum, and the bearing plane is parallel to the central axis of the rotating shaft; the test water trough is located below the rotary drive mechanism, and is located in the test water trough during the rotary drum test.

[0005] Furthermore, a mounting plane is provided on the side surface of the rotating drum, the sample carrier is in the shape of a plate, and a plate surface of the sample carrier away from the carrying plane is attached to the mounting plane.

[0006] Furthermore, the rotating drum is provided with a plurality of first threaded holes on the mounting plane, and the sample carrier is provided with first through holes corresponding one to one with the first threaded holes; the rotating drum is provided with a first bolt, and the stud of the first bolt passes through the first through hole and is threadedly connected with the first threaded hole, and the head of the first bolt abuts against the sample carrier.

[0007] Furthermore, the mounting plane is provided with a raised edge at the edge of the sample carrier, and the raised height of the edge is not higher than the thickness of the sample carrier.

[0008] Furthermore, the drum is composed of two regular polygonal plates; the two regular polygonal plates are coaxially fixedly connected to the rotating shaft, the two regular polygonal plates have the same number of sides, and the projections of the two regular polygonal plates in the height direction overlap.

[0009] Furthermore, a slot is provided on the side surface of the rotating drum, and an inserting portion is provided on a side of the sample carrier away from the bearing plane. The inserting portion is arranged in the slot, and the bearing plane is located outside the slot.

[0010] Furthermore, the end surface of the rotating drum is provided with a second through hole connected to the slot, the plug-in portion is provided with a second threaded hole corresponding to the second through hole, the rotating drum is configured with a second bolt, the stud of the second bolt passes through the second through hole and is threadedly connected to the second threaded hole, and the head of the second bolt abuts against the end surface of the rotating drum.

[0011] Furthermore, a plurality of spoilers are arranged in the test water tank, and a plurality of the spoilers are arranged around the center of the test water tank; and the rotating drum is located in the middle of the plurality of spoilers arranged around the center during the test.

[0012] Furthermore, the bracket includes a column, a lifting platform and a lifting drive mechanism. The lifting platform can be lifted on the column. The lifting platform is connected to the output end of the lifting drive mechanism to lift the lifting platform; the rotating drive mechanism is connected to the lifting platform to rise and fall with the lifting platform.

[0013] Furthermore, the rotary drive mechanism comprises a drive motor, a coupling and a transmission rod, the drive motor is connected to the bracket, and the output shaft of the drive motor is coaxially connected to the transmission rod through the coupling.

[0014] The technical solution provided by the utility model has the following beneficial effects compared with the prior art:

[0015] The test device provided in this embodiment is provided by installing the sample carrier on the side surface of the drum, and the bearing plane protrudes from the side surface of the drum, and the bearing plane is parallel to the central axis of the rotating shaft. In this way, the area of ​​the bearing plane can be regarded as rotating at the same linear speed to simulate the undetermined speed of the ship, and the paint area on the bearing plane can be collected as test data at the speed. Since more test data can be collected for abrasion rate determination, it can achieve the effect of ensuring that the test data is more accurate and has greater reference value, and the experimental results are highly repeatable, which is convenient for obtaining the abrasion rate of the antifouling coating layer and guiding the most economical and reasonable film thickness design in engineering applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the testing device of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a rotary drum in the testing device of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure in which the rotating drum of the testing device of the utility model is provided with a surrounding edge;

[0020] Figure 4 It is a schematic structural diagram of a sample carrier in one embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the connection between the sample carrier and the rotating drum in one embodiment of the utility model;

[0022] Figure 6 for Figure 5 A schematic structural diagram of a sample carrier in an embodiment;

[0023] Explanation of the accompanying drawings: 1- bracket, 2- rotation driving mechanism, 21- rotating shaft, 3- rotating drum, 31- mounting plane, 32- first threaded hole, 33- surrounding edge, 34- regular polygon plate, 35- slot, 4- sample carrier, 41- bearing plane, 42- first through hole, 43- plug-in part, 44- second threaded hole, 5- test water tank, 51- spoiler. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0028] Combine the following Figures 1 to 6 , describes a simple and reliable antifouling coating abrasion rate testing device according to an embodiment of the utility model, comprising:

[0029] Bracket 1;

[0030] A rotation drive mechanism 2, wherein the rotation drive mechanism 2 is disposed on the bracket 1, and the rotation drive mechanism 2 has a rotation shaft 21, and the rotation shaft 21 has a free end disposed downward;

[0031] A rotating drum 3, the end of which is connected to the free end of the rotating shaft 21 so as to rotate with the rotating shaft 21;

[0032] A sample carrier 4, wherein the sample carrier 4 has a bearing plane 41 for coating the sample, the sample carrier 4 is detachably mounted on the rotating drum 3, and the bearing plane 41 is arranged to protrude from the side surface of the rotating drum 3, and the bearing plane 41 is parallel to the central axis of the rotating shaft 21;

[0033] A test water tank 5 with an opening facing upward is located below the rotary drive mechanism 2 , and the drum 3 is located in the test water tank 5 during testing.

[0034] In a specific application, the antifouling paint sample is applied to the bearing plane 41 of the sample carrier 4, and then the sample carrier 4 is installed on the drum 3 so that the bearing plane 41 protrudes from the side surface of the drum 3 and is parallel to the central axis of the rotating shaft 21. Then the rotary drive mechanism 2 drives the drum 3 to rotate at a set speed so that the bearing plane 41 rotates around the rotating shaft 21, thereby simulating the abrasion of the antifouling paint at the corresponding speed. According to the thickness change of the antifouling paint sample before and after the operation of the test device, combined with the operation time of the test device, the abrasion rate of the antifouling paint sample can be calculated. In addition, the rotation speed of the rotary drive mechanism 2 can be adjusted by a frequency converter, so as to perform an abrasion rate test of the antifouling paint sample under different speed requirements.

[0035] The test device provided in this embodiment is provided by installing the sample carrier 4 on the side surface of the drum 3, and the bearing plane 41 protrudes from the side surface of the drum 3, and the bearing plane 41 is parallel to the central axis of the rotating shaft 21. In this way, the area of ​​the bearing plane 41 can be regarded as rotating at the same linear speed to simulate the specific speed of the ship, and the paint area on the bearing plane 41 can be collected as the test data at the speed. Since more test data can be collected for the abrasion rate measurement, it can achieve the effect of ensuring that the test data is more accurate and has greater reference value, and the experimental results are highly repeatable, which is convenient for obtaining the abrasion rate of the antifouling coating layer and guiding the most economical and reasonable film thickness design in engineering applications.

[0036] The test water tank 5 is provided with a plurality of spoilers 51, and a plurality of spoilers 51 are arranged around the center of the test water tank 5; the drum 3 is located in the middle of the plurality of spoilers 51 arranged around the center during the test. The provision of the spoilers 51 prevents the water in the test water tank 5 from rotating with the rotation of the drum 3, making the test situation closer to the actual situation and further increasing the reliability of the test results.

[0037] Specifically, the support 1 includes a column, a lifting platform and a lifting drive mechanism. The lifting platform can be lifted and lowered on the column. The lifting platform is connected to the output end of the lifting drive mechanism to lift the lifting platform; the rotary drive mechanism 2 is connected to the lifting platform to be lifted and lowered with the lifting platform. Specifically, the lifting drive mechanism can be any one of a hydraulic cylinder, a pneumatic cylinder, and a linear reciprocating drive structure composed of a motor and a lead screw. In actual use, when the sample carrier 4 needs to be replaced, the lifting platform is raised by the lifting drive mechanism so that the drum 3 is located above the test water tank 5, so that the drum 3 is lifted and exposed to facilitate the removal and installation of the sample carrier 4. After replacing the sample carrier 4, the lifting platform is lowered by the lifting drive mechanism so that the drum 3 is located in the test water tank 5.

[0038] More specifically, the rotary drive mechanism 2 includes a drive motor, a coupling and a transmission rod, wherein the drive motor is connected to the bracket 1, and the output shaft of the drive motor is coaxially connected to the transmission rod through the coupling. The drive motor drives the transmission rod to rotate, so that the transmission rod serves as a rotating shaft 21 of the rotary drive mechanism 2 to drive the rotating drum 3 to rotate.

[0039] An optional embodiment of the present utility model is as follows Figure 2 and Figure 4 As shown, the side surface of the rotating drum 3 is provided with a mounting plane 31, the sample carrier 4 is plate-shaped, and the plate surface of the sample carrier 4 away from the carrying plane 41 is attached to the mounting plane 31. In this embodiment, the plate-shaped sample carrier 4 is connected to the rotating drum 3 in a surface-to-surface manner, which is conducive to improving the stability of the sample carrier 4 installation.

[0040] Specifically, the drum 3 is provided with a plurality of first threaded holes 32 on the mounting plane 31, and the sample carrier 4 is provided with first through holes 42 corresponding to the first threaded holes 32 one by one; the drum 3 is provided with a first bolt (not shown in the figure), and the stud of the first bolt passes through the first through hole 42 and is threadedly connected with the first threaded hole 32, and the head of the first bolt abuts against the sample carrier 4. In this embodiment, the sample carrier 4 is threadedly fixed to the side surface of the drum 3 by the first bolt, and disassembly and assembly are simple and convenient. Specifically and optionally, the drum 3 is provided with four first threaded holes 32 on the mounting plane 31, and the sample carrier 4 is provided with four through holes. Of course, in other embodiments, 2, 3, 5, etc. may also be provided, and this embodiment does not make specific restrictions.

[0041] Preferably, if Figure 3As shown, the mounting plane 31 is provided with a raised edge 33 at the edge of the sample carrier 4, and the raised height of the edge 33 is not higher than the thickness of the sample carrier 4. In this embodiment, by providing the raised edge 33 at the edge of the mounting plane 31 to form a limit frame, it is effectively conducive to accurately placing the plate-shaped sample carrier 4 at the corresponding position, so as to facilitate the sample carrier 4 to be installed on the rotating drum 3. It is worth mentioning that the raised height of the edge 33 relative to the mounting plane 31 shall not be higher than the thickness of the sample carrier 4, so as to ensure that the bearing plane 41 of the sample carrier 4 is in contact with the water flow smoothly during rotation.

[0042] Specifically, Figure 2 and Figure 3 As shown, the rotating drum 3 is composed of two regular polygonal plates 34; the two regular polygonal plates 34 are coaxially fixedly connected to the rotating shaft 21, the two regular polygonal plates 34 have the same number of sides, and the projections of the two regular polygonal plates 34 in the height direction overlap. In some specific optional embodiments, a connecting rod is provided between the two regular polygonal plates 34, and the two ends of the connecting rod are respectively provided with external threads, and the centers of the two regular polygonal plates are provided with mounting holes, and the mounting holes are provided with internal threads that match the external threads. One end of the connecting rod is threadedly fixed to the mounting hole of one regular polygonal plate, and the other end of the connecting rod is threadedly connected to the mounting hole of another regular polygonal plate, and is threadedly fixed to the free end of the rotating shaft 21 through the mounting hole. In this way, the two regular polygonal plates 34 are coaxially fixedly connected to the rotating shaft 21.

[0043] In this embodiment, the drum 3 is composed of two regular polygonal plates 34, so that the drum 3 is in a polygonal column shape, and the side wall of the drum 3 has a plurality of mounting planes 31, so that different types of antifouling coatings can be tested in one test. In practical applications, regular polygonal plates 34 with corresponding sides can be selected to form the drum according to the number of antifouling coating samples. Specifically, as Figure 2 In the embodiment shown, the drum 3 can be composed of two regular dodecagons with a certain thickness, forming a regular dodecagonal column with a hollow center, which reduces the weight of the drum 3 and thus reduces the load of the rotary drive mechanism 2. More specifically, the first threaded hole 32 and the surrounding edge 33 are arranged on the side wall of the regular polygonal plate 34. Of course, in other embodiments, the regular polygonal plate can also be a regular octagonal plate, a regular hexagonal plate, etc., which is not specifically limited in this embodiment. Preferably, the material of the regular polygonal plate 34 can be acrylic, which has good corrosion resistance to prevent the drum from corroding and deforming in seawater.

[0044] like Figure 5As shown, another optional embodiment of the utility model, the drum 3 is columnar, the side surface of the drum 3 is provided with a slot 35, the side of the sample carrier 4 away from the bearing plane 41 is provided with a plug-in portion 43, the plug-in portion 43 is arranged in the slot 35, and the bearing plane 41 is located outside the slot 35. In this embodiment, the sample carrier 4 is assembled by inserting the plug-in portion 43 into the slot 35, so that the slot 35 limits the sample carrier 4 to facilitate the installation and locking of the sample carrier 4. In actual operation, all sample carriers 4 can be inserted into the slot 35 one by one and then threadedly fixed. There is no need to tighten the bolts once for each sample carrier 4, which can save installation time and improve installation efficiency. Specifically, as Figure 5 In one embodiment shown, the drum 3 is in the shape of a regular dodecagonal column, the sample carrier 4 is in the shape of a triangular prism, and the drum 3 is provided with a slot 35 adapted to the triangular prism on its side surface. Of course, in other embodiments, the drum 3 may be in the shape of a cylinder, and the sample carrier 4 may also be in the shape of a cylinder with a longitudinal section, and the present invention does not impose any specific restrictions thereon.

[0045] Furthermore, the end surface of the drum 3 is provided with a second through hole (not shown in the figure) connected to the slot 35, the plug-in portion 43 is provided with a second threaded hole 44 corresponding to the second through hole, and the drum 3 is provided with a second bolt (not shown in the figure), the stud of the second bolt passes through the second through hole and is threadedly connected to the second threaded hole 44, and the head of the second bolt abuts against the end surface of the drum 3. In this embodiment, the bearing plane 41 does not need to be provided with a hole to be fixedly connected to the drum 3, so that the bearing plane 41 has the largest area for spraying the antifouling paint sample. In addition, there is no bolt head protruding on the bearing plane 41, which effectively prevents the protruding bolt head from affecting the water flow through the bearing plane 41, thereby improving the accuracy of the test results.

[0046] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A simple and reliable antifouling coating abrasion rate test device, characterized by: include: Bracket; A rotation drive mechanism, the rotation drive mechanism is arranged on the bracket, the rotation drive mechanism has a rotation shaft, and the rotation shaft has a free end arranged downward; A rotating drum, the end of which is connected to the free end of the rotating shaft so as to rotate with the rotating shaft; A sample carrier, the sample carrier having a bearing plane for coating the sample, the sample carrier being detachably mounted on the rotating drum, the bearing plane being arranged to protrude from a side surface of the rotating drum, and the bearing plane being parallel to a central axis of the rotating shaft; A test water tank with an opening facing upward is located below the rotary drive mechanism, and the drum is located in the test water tank during the rotary drum test.

2. The simple and reliable antifouling coating abrasion rate testing device according to claim 1 is characterized in that: A mounting plane is provided on the side surface of the rotating drum. The sample carrier is in a plate shape. The plate surface of the sample carrier away from the carrying plane is attached to the mounting plane.

3. The simple and reliable antifouling coating abrasion rate testing device according to claim 2 is characterized in that: The rotating drum is provided with a plurality of first threaded holes on the mounting plane, and the sample carrier is provided with first through holes corresponding one to one with the first threaded holes; the rotating drum is provided with a first bolt, the stud of the first bolt passes through the first through hole and is threadedly connected with the first threaded hole, and the head of the first bolt abuts against the sample carrier.

4. The simple and reliable antifouling coating abrasion rate testing device according to claim 2 is characterized in that: The mounting plane is provided with a raised peripheral edge at the edge of the sample carrier, and the raised height of the peripheral edge is not higher than the thickness of the sample carrier.

5. The simple and reliable antifouling coating abrasion rate testing device according to claim 2 is characterized in that: The rotating drum is composed of two regular polygonal plates; the two regular polygonal plates are coaxially fixedly connected to the rotating shaft, the two regular polygonal plates have the same number of sides, and the projections of the two regular polygonal plates in the height direction overlap.

6. The simple and reliable antifouling coating abrasion rate testing device according to claim 1 is characterized in that: A slot is provided on the side surface of the rotating drum, and an inserting portion is provided on a side of the sample carrier away from the carrying plane. The inserting portion is arranged in the slot, and the carrying plane is located outside the slot.

7. The simple and reliable antifouling coating abrasion rate testing device according to claim 6 is characterized in that: The end surface of the rotating drum is provided with a second through hole connected to the slot, the plug-in portion is provided with a second threaded hole corresponding to the second through hole, the rotating drum is configured with a second bolt, the stud of the second bolt passes through the second through hole and is threadedly connected to the second threaded hole, and the head of the second bolt abuts against the end surface of the rotating drum.

8. The simple and reliable antifouling coating abrasion rate testing device according to claim 1 is characterized by: The test water tank is provided with a plurality of spoilers, which are distributed around the center of the test water tank; the rotating drum is located in the middle of the plurality of spoilers distributed around during the test.

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