Anchor chain corrosion resistant coating performance testing device

Abstract

The present invention relates to the field of detection technology, and in particular to a device for testing the corrosion resistance of anchor chains. The device comprises a housing, a housing cover hingedly connected to the housing, a base fixedly connected to the lower end of the housing, a salt spray spray assembly for testing the corrosion resistance of anchor chains disposed within the housing, a placement box disposed within the housing, a threaded rod rotatably connected to the housing via a sealed bearing, a movable block threadedly connected through the threaded rod, a movable plate fixedly connected to the movable block, a sliding rib fixedly connected to the movable plate, a limiting groove provided on the inner wall of the housing, and the sliding rib slidably disposed within the limiting groove. The present invention can improve the accuracy of detection.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a device for detecting the performance of an anchor chain corrosion-resistant coating. Background Art

[0002] Anchor chain is a special chain or steel cable system connecting the ship and the anchor. Its main function is to fix the position of the ship and prevent drifting. In order to ensure the safety and service life of the anchor chain, the new anchor chain needs to be tested for corrosion resistance. During the test, the salt spray test is generally used to simulate the marine salt spray environment to corrode the anchor chain. The anchor chain is tested by weighing the weight before and after the anchor chain. Since the salt spray test only simulates the continuous salt spray environment, the anchor chain will also be subject to friction from the seabed mud and sand in the ocean. The friction between the anchor chains causes the coating to fall off, thereby reducing the accuracy of the test. Summary of the Invention

[0003] The purpose of the present invention is to solve the disadvantage of the prior art that the accuracy of detection is reduced, and to propose a device for detecting the performance of the corrosion-resistant coating of an anchor chain.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A device for testing the corrosion resistance of anchor chains is designed, comprising a box body, a box cover hingedly connected to the box body, a base fixedly connected to the lower end of the box body, and a salt spray spray assembly for testing the corrosion resistance of anchor chains arranged in the box body;

[0006] A placement box is provided in the box body, a threaded rod is rotatably connected to the box body through a sealed bearing, a moving block is threadedly connected to the threaded rod, a moving plate is fixedly connected to the moving block, a sliding rib is fixedly connected to the moving plate, a limiting groove is provided on the inner wall of the box body, and the sliding rib is slidably arranged in the limiting groove;

[0007] Both ends of the movable plate are provided with fixing frames, and the two fixing frames are fixedly connected with a clamping ring by bolts. The clamping ring fixes the anchor chain. The anchor chain is located in the placement box, and the placement box is filled with sand and gravel.

[0008] Preferably, the box cover is made of transparent material.

[0009] Preferably, the movable plate is provided with a slide groove, and a bidirectional threaded rod is rotatably connected to the slide groove through a bearing, and both ends of the bidirectional threaded rod are threadedly connected to a slider, and the two sliders are slidably arranged in the slide groove, and the two sliders are respectively fixedly connected to the two fixed frames, and a limit bar is fixedly connected to the bidirectional threaded rod, and a connecting tube is sleeved on the bidirectional threaded rod, and the connecting tube is rotatably connected to the box body through a bearing, and a positioning groove is provided on the connecting tube, and the limit bar is slidably arranged in the positioning groove, and the bidirectional threaded rod and the threaded rod are driven by a selection driving mechanism.

[0010] Preferably, the selection drive mechanism includes a first friction wheel, the first friction wheel is fixedly connected to the connecting cylinder, the third friction wheel is fixedly connected to the threaded rod, a second friction wheel is arranged between the first friction wheel and the third friction wheel, the second friction wheel is fixedly connected to a rotating rod, the rotating rod is rotatably connected to a vertical plate through a bearing, the rotating rod is driven by a forward and reverse mechanism, the vertical plate is fixedly connected to a horizontal plate, and the horizontal plate is connected to the placement box through a reverse motion mechanism.

[0011] Preferably, the reverse motion mechanism includes a second hydraulic rod, one end of the second hydraulic rod is fixedly connected to the box body, and the other end is fixedly connected to the connecting plate, a connecting column is fixedly connected to the connecting plate, a through hole is opened on the box body, a sealing ring is provided in the through hole, the connecting column is abutted against the sealing ring, the connecting column is fixedly connected to the placement box, the connecting plate and the cross plate are both fixedly connected with a first rack, a gear is meshed between the two first racks, a support shaft is fixedly connected to the gear, the support shaft is rotatably connected to the base through a bearing, a limiting column is provided through the cross plate, and the limiting column is fixedly connected to the base.

[0012] Preferably, the forward and reverse mechanism includes a first hydraulic rod, which is fixedly connected to the vertical plate, and the output end of the first hydraulic rod is fixedly connected to a second rack, the second rack is meshed with a driving gear, and the driving gear is fixedly connected to the rotating rod.

[0013] Preferably, a protective shell is fixedly connected to the box body, and the selection drive mechanism is located in the protective shell.

[0014] Preferably, the box body and the storage box are both provided with a discharge valve.

[0015] The present invention proposes a device for testing the performance of anchor chain corrosion resistance coating, which has the beneficial effect of adjusting the position of the movable block by rotating the threaded rod, thereby driving the movable plate to move, and causing the fixed anchor chain to move together. Since the placement box cannot move laterally, the anchor chain rubs against sand and gravel, causing wear on the anchor chain, causing the coating to fall off, and then combined with salt spray to cause corrosion, thereby improving the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a device for testing the performance of corrosion-resistant coatings on anchor chains proposed by the present invention;

[0017] Figure 2 This is a three-dimensional cross-sectional view of a device for testing the performance of anchor chain corrosion-resistant coatings (with the box cover and protective shell hidden) proposed by the present invention;

[0018] Figure 3 An anchor chain corrosion resistant coating performance detection device proposed by the present invention Figure 2 Front view of

[0019] Figure 4 The present invention proposes a three-dimensional structure of the threaded rod and the moving block part of the anchor chain corrosion resistant coating performance detection device Figure 1 ;

[0020] Figure 5 The present invention proposes a three-dimensional structure of the threaded rod and the moving block part of the anchor chain corrosion resistant coating performance detection device Figure 2 ;

[0021] Figure 6 The present invention proposes a three-dimensional diagram of the positive and negative mechanisms of the anchor chain corrosion resistant coating performance testing device. Figure 1 ;

[0022] Figure 7 The present invention proposes a three-dimensional diagram of the positive and negative mechanisms of the anchor chain corrosion resistant coating performance testing device. Figure 2 ;

[0023] Figure 8 A perspective view of a placement box for a device for testing the performance of an anchor chain corrosion-resistant coating according to the present invention;

[0024] Figure 9 An anchor chain corrosion resistant coating performance detection device proposed by the present invention Figure 8 Enlarged view of part A.

[0025] In the figure: 1. box cover; 2. box body; 3. protective shell; 4. base; 5. salt spray spray assembly; 6. placement box; 7. sliding rib; 8. fixing frame; 9. connecting column; 10. moving plate; 11. threaded rod; 12. moving block; 13. first hydraulic rod; 14. snap ring; 15. connecting cylinder; 16. first friction wheel; 17. anchor chain; 18. slider; 19. two-way threaded rod; 20. limiting column; 21. second hydraulic rod; 22. connecting plate; 23. first rack; 24. gear; 25. support shaft; 26. second friction wheel; 27. third friction wheel; 28. vertical plate; 29. ​​rotating rod; 30. driving gear; 31. limiting bar; 32. second rack; 33. bolt; 34. horizontal plate; 35. collecting device. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1: Reference Figure 1-5 and Figure 8-9 A device for testing the performance of an anchor chain corrosion-resistant coating includes a box body 2, a box cover 1 is hingedly connected to the box body 2, the box cover 1 is made of a transparent material, the lower end of the box body 2 is fixedly connected to a base 4, and a salt mist spray assembly 5 for testing the corrosion resistance of the anchor chain 17 is provided in the box body 2. The salt mist spray assembly 5 consists of an air pump, an air filter, a pressure regulating valve, an air saturator, and an atomizing nozzle. The air pump is connected to an air filter through a pipeline, the air filter is connected to a pressure regulating valve through a pipeline, the pressure regulating valve is connected to an air saturator through a pipeline, the air saturator is connected to an atomizing nozzle through a pipeline, the atomizing nozzle is connected to a brine storage, the air pump pushes air through the atomizing nozzle, and after mixing with the brine, salt mist is formed and sprayed out to perform the salt spray test. A heater and a temperature and humidity sensor are provided in the box 2 to maintain constant temperature and humidity conditions. A collecting device 35 is installed in the box 2 to measure the amount of salt spray deposition. In order to ensure the pressure balance in the box 2 and avoid the accumulation of salt spray, an exhaust pipe can be provided on the box 2. During the test, the anchor chain 17 to be tested is weighed, and its corrosion is completed and the corrosion products are removed, and the mass loss is measured to test its corrosion resistance.

[0028] A placement box 6 is provided in the box body 2, and a threaded rod 11 is rotatably connected to the box body 2 through a sealed bearing. A moving block 12 is connected through a thread on the threaded rod 11, and a moving plate 10 is fixedly connected to the moving block 12. A sliding rib 7 is fixedly connected to the moving plate 10. A limiting groove is provided on the inner wall of the box body 2, and the sliding rib 7 is slidably set in the limiting groove. The threaded rod 11 is rotated to adjust the position of the moving block 12 on the threaded rod 11, thereby driving the moving plate 10 to move and driving the fixed anchor chain 17 to move. Since the placement box 6 cannot move laterally, the anchor chain 17 rubs against the sand and gravel, causing wear on the anchor chain 17, causing the coating to fall off, and then combined with salt spray to corrode, thereby improving the accuracy of detection.

[0029] Both ends of the movable plate 10 are provided with a fixing frame 8, and the two fixing frames 8 are fixedly connected with a clamping ring 14 by a bolt 33. The clamping ring 14 fixes the anchor chain 17. The anchor chain 17 is located in the placement box 6, and the placement box 6 is filled with sand and gravel. The bolt 33 can be made of titanium alloy material, which is beneficial to prevent corrosion. Some other metal parts located in the box can also be made of titanium alloy; and some non-metallic parts are made of glass fiber reinforced plastic.

[0030] Example 2: Reference Figure 1-9 As another preferred embodiment of the present invention, based on Example 1, in Example 1, when the anchor chain 17 is worn during movement, the anchor chain 17 will be contaminated with sand during movement, causing the sand to adhere to the anchor chain 17. As a result, when salt mist is sprayed, the sand will block the salt mist from directly contacting the metal surface, reducing the corrosion rate of the covered area, thereby reducing the accuracy of the detection result.

[0031] The movable plate 10 is provided with a slide groove, and a bidirectional threaded rod 19 is rotatably connected in the slide groove through a bearing. Both ends of the bidirectional threaded rod 19 are threadedly penetrated and connected with a slider 18. The two sliders 18 are slidably arranged in the slide groove. The two sliders 18 are respectively fixedly connected to the two fixed frames 8. The bidirectional threaded rod 19 is fixedly connected to a limit strip 31. A connecting cylinder 15 is sleeved on the bidirectional threaded rod 19. The connecting cylinder 15 is rotatably connected to the box body 2 through a bearing. The bearing here also adopts a sealed bearing. A positioning groove is provided on the connecting cylinder 15, and the limit strip 31 is slidably set in the positioning groove. When the movable plate 10 moves laterally, it will drive the limit strip 31 to slide in the positioning groove. When the connecting cylinder 15 rotates, it drives the limit strip 31 to rotate, so that the limit strip 31 drives the bidirectional thread The rod 19 rotates, and the two-way threaded rod 19 and the threaded rod 11 are driven by the selected driving mechanism. When the two-way threaded rod 19 rotates, it drives the two sliders 18 to move, and adjusts the positions of the two sliders 18 so that the two ends of the anchor chain 17 fixed by the two fixing frames 8 move away from each other or toward each other, so that the anchor chain 17 is in a straight state or a loose state, which will cause the anchor chain 17 to vibrate. After the placement box 6 lowers the anchor chain 17 and separates from the sand and gravel, the sand on it is vibrated off, which plays a role in cleaning, avoiding the situation of sand blocking when salt spraying, ensuring the corrosion rate, and thus helping to improve the accuracy of the test results. At the same time, when the two ends of the anchor chain 17 move toward each other, the chain links will collide, which is conducive to simulating the friction between the chain links during use.

[0032] The selective driving mechanism includes a first friction wheel 16, the first friction wheel 16 is fixedly connected to the connecting tube 15, the threaded rod 11 is fixedly connected to the third friction wheel 27, a second friction wheel 26 is provided between the first friction wheel 16 and the third friction wheel 27, the second friction wheel 26 is fixedly connected to a rotating rod 29, the rotating rod 29 is rotatably connected to a vertical plate 28 through a bearing, the rotating rod 29 is driven by a forward and reverse mechanism, the vertical plate 28 is fixedly connected to a horizontal plate 34, the horizontal plate 34 is connected to the placement box 6 through a reverse motion mechanism, by adopting the second friction wheel 26 to contact the third friction wheel 27, when the second friction wheel 26 rotates, the third friction wheel 27 is driven to rotate, thereby driving the threaded rod 11 to rotate, driving the anchor chain 17 to move, so that the anchor chain 17 and the sand and gravel are moved in. When the second hydraulic rod 21 extends, it drives the connecting plate 22 downward, causing the first rack 23 to drive the gear 24 to rotate, raising the horizontal plate 34 and the vertical plate 28. This causes the second friction wheel 26 to contact the first friction wheel 16, lowering the storage box 6. The anchor chain 17 is free from the sand and gravel, and the second friction wheel 26 drives the first friction wheel 16 to rotate. This first friction wheel 16 rotates the connecting cylinder 15, which in turn rotates the bidirectional threaded rod 19, causing the two ends of the anchor chain 17 to move away from or toward each other, vibrating the sand down. Salt spraying is then applied. When the anchor chain 17 rubs against the sand and gravel, salt spraying is not applied. The daily schedule is as follows: 22 hours of salt spraying, during which the anchor chain 17 does not rub against the sand and gravel; 2 hours of friction, during which no salt spraying is applied. This cycle is repeated for 7 days before testing.

[0033] The reverse motion mechanism includes a second hydraulic rod 21, one end of the second hydraulic rod 21 is fixedly connected to the box body 2, and the other end is fixedly connected to the connecting plate 22. The connecting plate 22 is fixedly connected to a connecting column 9. A through hole is opened on the box body 2, and a sealing ring is provided in the through hole. The connecting column 9 is against the sealing ring, and the sealing ring ensures the sealing. The connecting column 9 is fixedly connected to the placement box 6. The connecting plate 22 and the cross plate 34 are fixedly connected to the first rack 23. A gear 24 is meshed between the two first racks 23. The gear 24 is fixedly connected to the support shaft 25. The support shaft 2 5 is rotatably connected to the base 4 through a bearing, and a limit column 20 is provided on the horizontal plate 34. The limit column 20 is fixedly connected to the base 4. The limit column 20 plays a limiting role so that the horizontal plate 34 can only move in the longitudinal direction. The second hydraulic rod 21 extends to drive the placement box 6 to move downward, separating the anchor chain 17 from the sand and gravel. After the second hydraulic rod 21 rises, it drives the placement box 6 to rise and reset, so that the anchor chain 17 contacts the sand and gravel again for friction. The second hydraulic rod 21 adopts a hydraulic rod with a self-locking function to fix the position of the placement box 6.

[0034] Example 3: In Example 2, although the anchor chain 17 is stretched, it is kept in a taut state during service, and the corrosion degree of each link stress point is different. Immediately loosening the stretched anchor chain 17 will affect the accuracy of the test result because the anchor chain 17 has not been stretched for a long enough time. Figure 1-9 As another preferred embodiment of the present invention, based on embodiment 1, the forward and reverse mechanism includes a first hydraulic rod 13, the first hydraulic rod 13 is fixedly connected to the vertical plate 28, the output end of the first hydraulic rod 13 is fixedly connected to the second rack 32, the second rack 32 is meshed with a driving gear 30, and the driving gear 30 is fixedly connected to the rotating rod 29. By extending the first hydraulic rod 13, the second rack 32 is driven to move, and the second rack 32 drives the driving gear 30 to rotate. When the driving gear 30 drives the rotating rod 29 to rotate, the second friction wheel 26 contacts the first friction wheel 16, which will drive the first friction wheel 16 The rotation of the first friction wheel 16 will cause the two ends of the anchor chain 17 to move away from each other. When the anchor chain 17 is fully straightened, the second rack 32 continues to mesh with the driving gear 30, causing the first friction wheel 16 and the second friction wheel 26 to slip, until the first hydraulic rod 13 contracts, driving the second rack 32 to descend, reversing the driving gear 30, so that the two ends of the two anchor chains 17 move toward each other. By applying a force to the two ends of the anchor chain 17, its corrosion resistance in service is truly reflected, which is conducive to improving the accuracy of the test results.

[0035] A protective shell 3 is fixedly connected to the box body 2, and the selective driving mechanism is located in the protective shell 3. The protective shell 3 prevents the friction wheel part from being exposed. Discharge valves are provided in the box body 2 and the placement box 6 to discharge the liquid.

[0036] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An anchor chain corrosion resistant coating performance detection device, comprising a box, characterized in that: A box cover is hingedly connected to the box body, a base is fixedly connected to the lower end of the box body, and a salt spray spray assembly for anchor chain corrosion resistance testing is arranged in the box body; A placement box is provided in the box body, a threaded rod is rotatably connected to the box body through a sealed bearing, a moving block is threadedly connected to the threaded rod, a moving plate is fixedly connected to the moving block, a sliding rib is fixedly connected to the moving plate, a limiting groove is provided on the inner wall of the box body, and the sliding rib is slidably arranged in the limiting groove; Both ends of the movable plate are provided with fixing brackets, and the two fixing brackets are fixedly connected with a clamping ring by bolts, and the clamping ring fixes the anchor chain, and the anchor chain is placed in a placement box filled with sand and gravel; The movable plate is provided with a slide groove, and a bidirectional threaded rod is rotatably connected to the slide groove through a bearing. Both ends of the bidirectional threaded rod are threadedly connected with a slider, and the two sliders are slidably arranged in the slide groove. The two sliders are respectively fixedly connected to two fixing frames. A limit bar is fixedly connected to the bidirectional threaded rod, and a connecting cylinder is sleeved on the bidirectional threaded rod. The connecting cylinder is rotatably connected to the box body through a bearing. A positioning groove is provided on the connecting cylinder, and the limit bar is slidably arranged in the positioning groove. The bidirectional threaded rod and the threaded rod are driven by a selection driving mechanism; The selective driving mechanism includes a first friction wheel, which is fixedly connected to the connecting cylinder, a third friction wheel is fixedly connected to the threaded rod, a second friction wheel is arranged between the first friction wheel and the third friction wheel, and the second friction wheel is fixedly connected to a rotating rod, and a vertical plate is rotatably connected to the rotating rod through a bearing. The rotating rod is driven by a forward and reverse mechanism, and a horizontal plate is fixedly connected to the vertical plate, and the horizontal plate is connected to the placement box through a reverse motion mechanism; The reverse motion mechanism includes a second hydraulic rod, one end of the second hydraulic rod is fixedly connected to the box body, and the other end is fixedly connected to the connecting plate, a connecting column is fixedly connected to the connecting plate, a through hole is opened on the box body, a sealing ring is provided in the through hole, the connecting column and the sealing ring are abutted, the connecting column is fixedly connected to the placement box, the connecting plate and the cross plate are fixedly connected to the first rack, a gear is meshed between the two first racks, a support shaft is fixedly connected to the gear, the support shaft is rotatably connected to the base through a bearing, a limiting column is penetrated by the cross plate, and the limiting column is fixedly connected to the base.

2. The anchor chain corrosion resistant coating performance detection device according to claim 1, characterized in that: The box cover is made of transparent material.

3. The anchor chain corrosion resistant coating performance detection device according to claim 1, characterized in that: The forward and reverse mechanism includes a first hydraulic rod, which is fixedly connected to the vertical plate. The output end of the first hydraulic rod is fixedly connected to a second rack, and a driving gear is meshed on the second rack. The driving gear is fixedly connected to the rotating rod.

4. The anchor chain corrosion resistant coating performance detection device according to claim 3, characterized in that: A protective shell is fixedly connected to the box body, and the selection drive mechanism is located in the protective shell.

5. The anchor chain corrosion resistant coating performance detection device according to claim 1, characterized in that: The box body and the storage box are both provided with discharge valves.

Images