A device for testing the wear resistance of a chemical wear-resistant coating

Abstract

The utility model discloses a kind of abrasion resistance testing devices of chemical wear-resistant coating, belong to abrasion resistance testing device technical field, the abrasion resistance testing device of this chemical wear-resistant coating, including test table, the top surface of test table is fixed with connecting box, the top surface of test table is provided with the test assembly for testing abrasive wear resistance, test assembly includes the mounting seat rotationally connected in the top surface of test table, the inside of mounting seat is provided with four sample plates, the upper portion of test table is close to the left and right sides respectively and is provided with polishing motor and grinding block, the output shaft of polishing motor is installed with grinding disc, the inside of second mounting plate is provided with grinding block.The utility model is through the collaborative design of four-station rotary mounting seat and bilateral independent test module, realize the high-precision quantification of wear-resistant coating multidimensional performance, so that two groups of sample plates can alternately accept the synchronous test of rotary grinding disc and linear grinding block, device single operation can complete four samples double-mode detection, improve test efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of wear resistance testing devices, specifically relating to a wear resistance testing device for chemical wear-resistant coatings. Background Technology

[0002] The petrochemical industry primarily uses petroleum and natural gas as raw materials to process and produce petroleum and chemical products. During production and transportation, petrochemical equipment faces corrosive media such as acids, alkalis, salts, oils, gases, and water, leading to potential hazards and even damage to the equipment. This can result in a series of accidents, including production stoppages, collapses, chemical spills, explosions, and fires, with extremely serious consequences. The high wear resistance of abrasion-resistant coatings plays a crucial role in maintaining the integrity of the coating, thus significantly impacting its corrosion resistance. Therefore, abrasion-resistant coatings are widely used in the petrochemical industry.

[0003] During the production process of wear-resistant coatings, their quality needs to be tested. The testing method usually involves applying the wear-resistant coating to the workpiece, applying pressure and friction to the workpiece after coating, and then using non-destructive testing to check the wear condition of the wear-resistant coating and determine the quality of the coating.

[0004] Currently, when testing wear-resistant coatings, the equipment can only perform wear resistance tests on a single sample per run and can only perform one wear resistance test mode. However, in the testing of wear-resistant materials, multiple test samples are needed for comparison to reduce measurement errors. This significantly affects the efficiency of wear-resistant coating testing when multiple tests or tests in different modes are performed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a device for testing the wear resistance performance of chemical wear-resistant coatings.

[0006] The technical solution adopted to solve the above technical problems is: to provide a test device for the wear resistance performance of chemical wear-resistant coatings, including a test platform, characterized in that a connecting box is fixed on the top surface of the test platform, and a test component for testing the wear resistance performance of abrasives is provided on the top surface of the test platform. The test component includes a mounting base rotatably connected to the top surface of the test platform, and four sample plates are arranged inside the mounting base in a circular array with the axis of the mounting base as the center. A first mounting plate and a second mounting plate are respectively arranged on the upper part of the test platform near the left and right sides. A grinding motor is installed on the top surface of the first mounting plate, and a grinding disc is installed on the output shaft of the grinding motor. A grinding block is arranged inside the second mounting plate.

[0007] Through the above technical solution, by setting up a four-station rotary mounting base and a dual-sided independent testing module, the high-precision quantification of the multi-dimensional performance of wear-resistant coatings can be achieved. This allows two sets of sample plates to be alternately subjected to synchronous testing by a rotating grinding disc and a linear grinding block. The rotating grinding disc applies rotational friction testing to the sample plate, while the linear grinding block applies linear friction testing to the sample plate. This enables the device to complete dual-mode testing of four samples in a single run, effectively improving testing efficiency.

[0008] Furthermore, a first motor is fixed to the bottom surface of the test platform. The output shaft of the first motor passes through the bottom surface of the test platform and the mounting base. A first hydraulic rod is fixed to the top surface of the connecting box near the left and right sides. The output shaft ends of the two first hydraulic rods pass through the connecting box and are fixed to the top surfaces of the first mounting plate and the second mounting plate respectively. A lead screw is rotatably connected inside the second mounting plate. The grinding block is threaded to the outer wall of the lead screw. A second motor is fixed to one side of the second mounting plate. The output shaft of the second motor is fixed to one end of the lead screw.

[0009] The above technical solution uses a first motor to drive the mounting base, which is used to switch the sample plate to the test station for testing. The first hydraulic rod is used to drive the grinding disc and grinding block to apply pressure to the sample plate for wear resistance testing at different lengths. The second motor is used to drive the grinding block to reciprocate and perform linear friction testing on the sample plate.

[0010] Furthermore, the top surface of the mounting base is provided with four connecting slots, and a positioning plate is slidably arranged inside the connecting slots. The sample plate is detachably installed to the top surface of the positioning plate by bolts.

[0011] The above technical solution allows for easy disassembly and replacement of the sample plate by setting the sample plate to be detachably installed on the top surface of the positioning plate via bolts.

[0012] Furthermore, a pressure sensor is fixed to the bottom surface of the connecting groove, and the bottom surface of the positioning plate abuts against the detection end of the pressure sensor.

[0013] The above technical solution allows for real-time monitoring of the pressure on the sample plate by setting up a pressure sensor, ensuring the accuracy of the test.

[0014] Furthermore, the top surface of the grinding block is rotatably connected to two support rollers, which abut against the inner top surface of the second mounting plate. The bottom surface of the mounting base is equipped with several directional wheels, which abut against the top surface of the test bench.

[0015] Through the above technical solution, by supporting the roller against the second mounting plate, the radial pressure applied to the lead screw by the grinding block pressing the sample plate can be borne, thus preventing the lead screw from bending and being damaged. The directional roller can bear the pressure applied to the mounting base during the wear resistance test, thus preventing damage to the first motor.

[0016] Furthermore, a second hydraulic rod is fixed at the middle position of the top surface of the connecting box, and an isolation cover is provided inside the connecting box. The output shaft of the second hydraulic rod passes through the top surface of the connecting box and is fixed to the top surface of the isolation cover.

[0017] The above technical solution uses an isolation cover to separate and protect the sample plate, preventing debris generated during the abrasion test from splashing onto the sample plate and affecting subsequent tests.

[0018] Furthermore, a first support rod is fixed to the top surface of both the first and second mounting plates. The first support rod is slidably inserted into the bottom surface of the connecting box. Two second support rods are fixed inside the second mounting plate. The grinding block is slidably disposed with the outer wall of the second support rods. Two third support rods are fixed at the middle position of the top surface of the isolation cover. The third support rods are slidably inserted into the bottom surface of the connecting box.

[0019] The above technical solution uses a first support rod to ensure the stability of the first and second mounting plates during linear sliding, a second support rod to ensure the stability of the grinding block during linear sliding, and a third support rod to ensure the stability of the isolation cover during linear sliding.

[0020] The beneficial effects of this utility model are as follows:

[0021] By setting up a four-station rotary mounting base and a dual-sided independent testing module in a coordinated design, the high-precision quantification of the multi-dimensional performance of wear-resistant coatings is achieved. This allows two sets of sample plates to be alternately subjected to synchronous testing by a rotating grinding disc and a linear grinding block. The rotating grinding disc applies rotational friction testing to the sample plate, while the linear grinding block applies linear friction testing to the sample plate. This enables the device to complete dual-mode testing of four samples in a single run, effectively improving testing efficiency.

[0022] The first motor drives the mounting base to switch the sample plate to the test station for testing. The first hydraulic rod drives the grinding disc and grinding block to apply pressure to the sample plate for wear resistance testing at different lengths. The second motor drives the grinding block to reciprocate and perform linear friction testing on the sample plate.

[0023] By supporting the rollers against the second mounting plate, the radial pressure exerted on the lead screw by the grinding block pressing the sample plate can be borne, preventing the lead screw from bending and being damaged. The directional rollers can bear the pressure exerted on the mounting base during the wear resistance test, preventing damage to the first motor. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a wear resistance performance testing device for a chemical wear-resistant coating according to this utility model;

[0025] Figure 2 This is a three-dimensional sectional view of the connection box of a wear resistance performance testing device for a chemical wear-resistant coating according to this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the positioning plate of a wear resistance performance testing device for a chemical wear-resistant coating according to this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the second mounting plate of a chemical wear-resistant coating testing device according to this utility model.

[0028] Reference numerals: 1. Test bench; 101. Connecting box; 2. Mounting base; 201. Sample plate; 202. First mounting plate; 203. Second mounting plate; 204. Grinding disc; 205. Grinding block; 206. First motor; 207. First hydraulic rod; 208. Lead screw; 209. Second motor; 3. Connecting groove; 301. Positioning plate; 4. Pressure sensor; 5. Support roller; 501. Directional wheel; 6. Second hydraulic rod; 601. Isolation cover; 7. First support rod; 701. Second support rod; 702. Third support rod. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] like Figure 1-4As shown, this embodiment of an abrasion resistance testing device for chemical abrasion-resistant coatings includes a test platform 1. A connecting box 101 is fixed to the top surface of the test platform 1. A testing component for testing the abrasion resistance of abrasives is provided on the top surface of the test platform 1. The testing component includes a mounting base 2 rotatably connected to the top surface of the test platform 1. A first motor 206 is fixed to the bottom surface of the test platform 1. The output shaft of the first motor 206 passes through the bottom surface of the test platform 1 and the mounting base 2. A rotary encoder is installed at the output shaft of the first motor 206 to ensure the rotational accuracy of the first motor 206. To prevent the sample plate 201 from being inaccurately driven to the test station, four sample plates 201 are arranged inside the mounting base 2 in a circular array around the axis of the mounting base 2. A first mounting plate 202 and a second mounting plate 203 are respectively installed on the upper left and right sides of the test platform 1. First hydraulic rods 207 are fixed to the top surface of the connecting box 101 near the left and right sides. The output shaft ends of the two first hydraulic rods 207 penetrate the connecting box 101 and are fixed to the top surfaces of the first mounting plate 202 and the second mounting plate 203 respectively. A grinding motor is mounted on the top surface of the mounting plate 202, and a grinding disc 204 is mounted on the output shaft of the grinding motor. A grinding block 205 is disposed inside the second mounting plate 203, and a lead screw 208 is rotatably connected inside the second mounting plate 203. The grinding block 205 is threadedly connected to the outer wall of the lead screw 208. A second motor 209 is fixed to one side of the second mounting plate 203, and the output shaft of the second motor 209 is fixed to one end of the lead screw 208. The first motor 206 is started to drive the mounting base 2 to rotate, so that the two sample plates 201 on the mounting base 2 move to the first mounting plate 202 respectively. Below the plate 202 and the second mounting plate 203, the first hydraulic rods 207 are activated to drive the first mounting plate 202 and the second mounting plate 203 to move downwards, so that the grinding disc 204 and the grinding block 205 abut against and adhere to the sample plate 201. Then, the grinding motor is activated to drive the grinding disc 204 to rotate and perform rotational grinding on the sample plate 201. The second motor 209 is activated to drive the lead screw 208 to rotate back and forth. Under the action of the threaded connection between the grinding block 205 and the lead screw 208, the grinding block 205 moves back and forth, realizing the linear friction test on the sample plate 201.

[0031] The top surface of the mounting base 2 has four connecting slots 3. A positioning plate 301 is slidably installed inside the connecting slots 3. The sample plate 201 is detachably installed on the top surface of the positioning plate 301 by bolts. A pressure sensor 4 is fixed on the bottom surface of the connecting slots 3. The bottom surface of the positioning plate 301 abuts against the detection end of the pressure sensor 4. A PLC controller is fixed on one side of the outer wall of the connecting box 101. The first motor 206, the first hydraulic rod 207, the second motor 209, and the pressure sensor 4 are all electrically connected to the PLC controller. By connecting the sample plate 201 to the top surface of the mounting base 2 by bolts, the first hydraulic rod 207 drives the grinding disc 204 and the grinding block 205 to abut against the sample plate 201. The sample plate 201 causes the positioning plate 301 to abut against the pressure sensor 4. The pressure sensor 4 transmits the pressure value to the PLC controller, which then controls the first hydraulic rod 207 to change the downward pressure to ensure the accuracy of the wear resistance test.

[0032] Two support rollers 5 are rotatably connected to the top surface of the grinding block 205. The support rollers 5 abut against the inner top surface of the second mounting plate 203. Several directional rollers 501 are installed on the bottom surface of the mounting base 2. The directional rollers 501 abut against the top surface of the test bench 1. By abutting against the second mounting plate 203 through the support rollers 5, the radial pressure applied to the lead screw 208 by the grinding block 205 pressing the sample plate 201 can be borne, preventing the lead screw 208 from bending and being damaged. The directional rollers 501 can bear the pressure applied to the mounting base 2 during the wear resistance test, preventing damage to the first motor 206. A second hydraulic rod 6 is fixed at the middle position of the top surface of the connecting box 101. The second hydraulic rod 6 is electrically connected to the PLC controller. An isolation cover 601 is set inside the connecting box 101. The output shaft of the second hydraulic rod 6 passes through the top surface of the connecting box 101 and is fixed to the top surface of the isolation cover 601. By activating the second hydraulic rod 6, the isolation cover 601 is moved down, so that the two sample plates 201 that are not in the test position can be moved down. Both are encased inside the isolation cover 601, which isolates the two test stations to prevent debris generated during the wear resistance test from splashing and falling onto the test sample plate 201, affecting subsequent tests. The top surfaces of the first mounting plate 202 and the second mounting plate 203 are fixed with first support rods 7, which are slidably inserted into the bottom surface of the connecting box 101. The interior of the second mounting plate 203 is fixed with two second support rods 701, and the grinding block 205 is slidably disposed with the outer wall of the second support rods 701. The middle position of the top surface of the isolation cover 601 is fixed with two third support rods 702, which are slidably inserted into the bottom surface of the connecting box 101. The first support rods 7 are used to ensure the stability of the first mounting plate 202 and the second mounting plate 203 during linear sliding, the second support rods 701 are used to ensure the stability of the grinding block 205 during linear sliding, and the third support rods 702 are used to ensure the stability of the isolation cover 601 during linear sliding.

[0033] The working principle of this embodiment is as follows: After applying a wear-resistant coating to the sample plate 201 and waiting for the coating to dry, the sample plate 201 is installed on the top surface of the mounting base 2 with bolts. Then, the first motor 206 is started to drive the mounting base 2 to rotate, so that the two sample plates 201 on the mounting base 2 move to the bottom of the first mounting plate 202 and the second mounting plate 203 respectively. Then, the second hydraulic rod 6 is started to drive the isolation cover 601 to move down, so that the two sample plates 201 that are not in the test position are both put into the interior of the isolation cover 601, and the two test positions are isolated at the same time to prevent the debris generated during the wear resistance test from splashing and falling onto the sample plate 201 to be tested, affecting subsequent tests.

[0034] The two first hydraulic rods 207 are activated to drive the first mounting plate 202 and the second mounting plate 203 to move downwards, so that the grinding disc 204 and the grinding block 205 abut against the sample plate 201. The sample plate 201 causes the positioning plate 301 to abut against the pressure sensor 4. The pressure sensor 4 transmits the pressure value to the PLC controller, which then controls the first hydraulic rods 207 to change the downward pressure to ensure the accuracy of the wear resistance test. Then, the grinding motor is activated to drive the grinding disc 204 to rotate and grind the sample plate 201. The second motor 209 is activated to drive the lead screw 208 to rotate back and forth. Under the action of the threaded connection between the grinding block 205 and the lead screw 208, the grinding block 205 moves back and forth, realizing the linear friction test of the sample plate 201.

[0035] After the test is completed, the mounting base 2 continues to rotate, so that the tested sample plate 201 moves to the empty position, while the other two untested sample plates 201 are moved to the test station for wear resistance testing. After all tests are completed, the sample plates 201 are taken out for non-destructive testing to determine the wear resistance performance of the wear-resistant coating.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A device for testing the wear resistance of chemical wear-resistant coatings, comprising a test bench (1), characterized in that, The top surface of the test bench (1) is fixed with a connecting box (101), and the top surface of the test bench (1) is provided with a test component for testing the wear resistance of abrasives. The test assembly includes a mounting base (2) rotatably connected to the top surface of the test bench (1). The mounting base (2) contains four sample plates (201), which are arranged in a circular array around the axis of the mounting base (2). A first mounting plate (202) and a second mounting plate (203) are respectively located on the top of the test bench (1) near the left and right sides. A grinding motor is mounted on the top surface of the first mounting plate (202), and a grinding disc (204) is mounted on the output shaft of the grinding motor. A grinding block (205) is located inside the second mounting plate (203).

2. The abrasion resistance testing device for chemical abrasion-resistant coatings according to claim 1, characterized in that, The bottom surface of the test bench (1) is fixed with a first motor (206). The output shaft of the first motor (206) passes through the bottom surface of the test bench (1) and the mounting base (2). The top surface of the connecting box (101) is fixed with first hydraulic rods (207) near the left and right sides. The output shaft ends of the two first hydraulic rods (207) pass through the connecting box (101) and are fixed to the top surfaces of the first mounting plate (202) and the second mounting plate (203) respectively. The inside of the second mounting plate (203) is rotatably connected with a lead screw (208). The grinding block (205) is threadedly connected to the outer wall of the lead screw (208). The second motor (209) is fixed on one side of the second mounting plate (203). The output shaft of the second motor (209) is fixed to one end of the lead screw (208).

3. The abrasion resistance testing device for chemical abrasion-resistant coatings according to claim 2, characterized in that, The mounting base (2) has four connecting slots (3) on its top surface. A positioning plate (301) is slidably installed inside the connecting slot (3). The sample plate (201) is detachably installed to the top surface of the positioning plate (301) by bolts.

4. The abrasion resistance testing device for chemical abrasion-resistant coatings according to claim 3, characterized in that, A pressure sensor (4) is fixed on the bottom surface of the connecting groove (3), and the bottom surface of the positioning plate (301) abuts against the detection end of the pressure sensor (4).

5. The abrasion resistance testing device for chemical abrasion-resistant coatings according to claim 4, characterized in that, The top surface of the grinding block (205) is rotatably connected to two support rollers (5), which abut against the inner top surface of the second mounting plate (203). The bottom surface of the mounting base (2) is equipped with several directional wheels (501), which abut against the top surface of the test bench (1).

6. The abrasion resistance testing device for chemical abrasion-resistant coatings according to claim 5, characterized in that, A second hydraulic rod (6) is fixed at the middle position of the top surface of the connecting box (101). An isolation cover (601) is provided inside the connecting box (101). The output shaft of the second hydraulic rod (6) passes through the top surface of the connecting box (101) and is fixed to the top surface of the isolation cover (601).

7. The abrasion resistance testing device for chemical abrasion-resistant coatings according to claim 6, characterized in that, The top surfaces of the first mounting plate (202) and the second mounting plate (203) are both fixed with a first support rod (7). The first support rod (7) is slidably inserted into the bottom surface of the connecting box (101). The interior of the second mounting plate (203) is fixed with two second support rods (701). The grinding block (205) is slidably disposed with the outer wall of the second support rod (701). The top surface of the isolation cover (601) is fixed with two third support rods (702). The third support rods (702) are slidably inserted into the bottom surface of the connecting box (101).

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