Sea ice abrasion test system for ship coating layer

Abstract

The utility model relates to a sea ice abrasion test system for a ship coating layer. The sea ice abrasion test system comprises a rack, a loading assembly, a main shaft, a sample bracket disc, a rotary assembly, an ice sample mounting assembly and a heat preservation assembly, the loading assembly is connected with one end of the main shaft, the sample support disc is installed at the other end of the main shaft, and the axis of the main shaft is perpendicular to the sample support disc. The ice sample installation assembly is located in the heat preservation assembly, a sample provided with marine paint is installed on the sample support disc, and an ice sample is installed in the ice sample installation assembly; the sample contacts the ice sample. Compared with the prior art, the device has the advantages that the loading component drives a sample mounted on the main shaft to press into the ice sample mounting component to mount an ice sample, and the rotating component drives the sample to rotate on the ice sample, so that the wear resistance of the coating on the sea ice can be quickly evaluated; sea ice samples with different components can be quickly frozen and prepared due to the small volume of the ice sample box, and the ice sample box is convenient to replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to material test, especially a kind of sea ice abrasion testing system for ship coating layer. BACKGROUND

[0002] With the rapid development of marine engineering and marine resources development, the application of sea ice abrasion resistant coating in ships, offshore platforms and related equipment is increasingly important. Sea ice abrasion not only causes surface damage to equipment, but also affects its overall performance and service life. Therefore, it is particularly important to develop an efficient and accurate testing device to evaluate the abrasion resistance of coating in sea ice environment.

[0003] Existing coating abrasion testing methods are mostly focused on conventional abrasion experiments, and lack of specialized testing equipment for sea ice characteristics. The unique physical properties of sea ice, such as its hardness, density and dynamic behavior, make the abrasion process very different from traditional abrasion environments, making existing testing methods unable to accurately simulate actual use conditions.

[0004] Application publication number CN112161889A discloses a steel anti-seawater and sea ice mixture abrasion test device and method, which mainly builds an annular sea ice and water composite flow channel, and immerses the sample in the flow channel for scouring to test the steel's resistance to seawater and sea ice mixture abrasion. The problems are: 1. The equipment occupies a large area, and it is difficult to cool and insulate in a large space. 2. The equipment requires a lot of preparation work, and the utilization rate of seawater and sea ice is low. 3. Sea ice abrasion of steel mainly relies on seawater scouring flow, and it is difficult to apply enough pressure to the sample surface to test the working conditions of ice area coating when breaking ice.

[0005] In summary, how to design a test system that can accurately simulate sea ice abrasion and has small volume is a technical problem to be solved. Utility model content

[0006] The utility model aims at overcoming the defects of inaccurate simulation of actual use conditions or large volume in the prior art and provides a sea ice abrasion testing system for ship coating layer.

[0007] The purpose of the utility model can be achieved by the following technical solutions:

[0008] According to one aspect of this utility model, a sea ice abrasion testing system for marine coatings is provided, comprising a frame, a loading assembly, a main shaft, a sample holder disk, a rotary assembly, an ice sample mounting assembly, and a thermal insulation assembly; the loading assembly, rotary assembly, and thermal insulation assembly are mounted on the frame; the loading assembly is connected to one end of the main shaft, the sample holder disk is mounted on the other end of the main shaft, the axis of the main shaft is perpendicular to the sample holder disk, and the rotary assembly is connected to the main shaft; the ice sample mounting assembly is located inside the thermal insulation assembly, a sample coated with marine coating is mounted on the sample holder disk, and the ice sample is mounted inside the ice sample mounting assembly; the sample is in contact with the ice sample.

[0009] As a preferred technical solution, the loading component includes a bracket, a loading electric cylinder and an electric cylinder motor. The loading electric cylinder is mounted on the bracket and connected to the electric cylinder motor. The output end of the loading electric cylinder is connected to one end of the main shaft.

[0010] As a preferred technical solution, the rotary assembly includes a rotary motor, a drive sprocket, a sprocket with a sprocket, and a chain; the output shaft of the rotary motor is connected to the drive sprocket, a sprocket sleeve is installed on the main shaft, the sprocket sleeve cooperates with the sprocket with a sprocket, and the chain is sleeved on the drive sprocket and the sprocket with a sprocket.

[0011] As a preferred technical solution, the heat preservation component includes a heat preservation tank and a tank cover. The tank cover is provided with a through hole, an inner ring heat preservation block and an outer ring heat preservation block. The through hole is located in the middle of the tank cover, and the main shaft passes through the through hole. The inner ring heat preservation block is installed on the inner side of the tank opening of the heat preservation tank, and the outer ring heat preservation block is installed on the outer side.

[0012] As a preferred technical solution, the insulation component further includes a lifting structure, and the insulation tank is installed on the lifting structure.

[0013] As a preferred technical solution, a bushing is provided around the through hole of the can lid, and the inner diameter of the bushing is smaller than the diameter of the sample support disk.

[0014] As a preferred technical solution, the insulated tank is provided with a vacuum jacket.

[0015] As a preferred technical solution, the ice sample mounting assembly includes an ice sample mounting bracket, an ice sample box mounting base, and an ice sample box. One end of the ice sample mounting bracket is connected to the tank lid, and the other end is fitted with the ice sample box mounting base. The ice sample box is installed inside the ice sample box mounting base. The ice sample box is provided with a flower-shaped reinforcing plate.

[0016] As a preferred technical solution, the ice sample box mounting base is provided with a sample ejection handwheel, the sample ejection handwheel is connected to a push rod screw, and the push rod screw is threadedly connected to the ice sample box.

[0017] As a preferred technical solution, one end of the sample is coated with marine paint, and the other end is connected to the sample support plate by threads.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1) The loading component of this utility model drives the sample mounted on the main shaft to press into the ice sample mounting component to install the ice sample, and the rotating component drives the sample to rotate on the ice sample, so as to realize the rapid evaluation of the wear resistance of the coating on sea ice; the small volume of the ice sample box can quickly freeze and prepare sea ice samples of different components, and the replacement is convenient.

[0020] 2) This utility model uses an electric loading component and a rotary component, which can accurately control experimental parameters and avoid the impact of operational errors on the experiment;

[0021] 3) The heat preservation tank of this utility model is installed on the lifting structure. After the sample and ice sample are installed, it is covered outside the ice sample installation component, which can not only achieve heat preservation, but also facilitate the installation of ice sample; a bushing is set around the through hole of the tank cover. After the experiment is completed, the main shaft is lifted and the sample support plate abuts against the bushing to achieve automatic detachment.

[0022] 4) This utility model enables convenient replacement of ice samples through a sample removal handwheel. The ice sample box is equipped with a flower-shaped reinforcing plate, which can be used for leveling the sample holder plate and can also ensure that the ice sample is stuck and does not rotate with the sample, thus improving the accuracy of the experiment. The bolt-type sample is easy to prepare and easy to install. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention in the first direction;

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention in the second direction;

[0025] Figure 3 This is a schematic diagram of the installation structure of the ice sample mounting component and the heat preservation component of this utility model;

[0026] Figure 4 This is a cross-sectional view of the ice sample installation component and the heat preservation component of this utility model;

[0027] Figure 5 This is a schematic diagram of the loading component, main shaft, and ice sample mounting component of this utility model;

[0028] Figure 6 This is a schematic diagram of the connection structure between the rotary component and the main shaft of this utility model;

[0029] Figure 7 This is a partial schematic diagram of the connection between the rotary assembly and the main shaft of this utility model;

[0030] Figure 8 This is a schematic diagram of the sample holder disk, ice sample mounting assembly, and main shaft connection structure of this utility model;

[0031] Figure 9 This is a schematic diagram of the sample holder disk structure of this utility model;

[0032] Figure 10 This is a schematic diagram of the sample structure of this utility model;

[0033] Figure 11 This is a schematic diagram illustrating the replacement of the ice sample box in this utility model;

[0034] Figure 12 This is a diagram showing the state of the test sample and ice sample of this utility model.

[0035] Figure 13 This is a diagram showing the state of the sample holder disk of this utility model as it falls off through the bushing.

[0036] Figure 14 This is a schematic diagram of the sample ejection handwheel structure of this utility model;

[0037] The numbers in the diagram are as follows:

[0038] 1. Frame, 2. Loading assembly, 21. Support, 22. Loading electric cylinder, 23. Electric cylinder motor, 3. Main shaft, 31. Flower shaft sleeve, 4. Sample holder plate, 5. Rotation assembly, 51. Rotation motor, 52. Drive sprocket, 53. Flower shaft sprocket, 54. Chain, 61. Ice sample mounting bracket, 62. Ice sample box mounting base, 621. Sample removal handwheel, 622. Push rod screw, 63. Ice sample box, 631. Flower-shaped reinforcing plate, 7. Insulation assembly, 71. Insulation tank, 72. Tank lid, 721. Through hole, 722. Inner ring insulation block, 723. Outer ring insulation block, 73. Lifting structure, 74. Bushing, 8. Sample, 81. Marine coating, 9. Ice sample. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0040] like Figure 1 and Figure 2As shown, this utility model provides a sea ice abrasion testing system for ship coatings, including a frame 1, a loading assembly 2, a main shaft 3, a sample holder disk 4, a rotating assembly 5, an ice sample 9 mounting assembly, and a thermal insulation assembly 7. The ice sample 9 mounting assembly and the thermal insulation assembly 7 are located below the loading assembly 2, the main shaft 3, the sample holder disk 4, and the rotating assembly 5.

[0041] Loading component 2, slewing component 5 and insulation component 7 are installed on frame 1.

[0042] The loading assembly 2 includes a bracket 21, a loading electric cylinder 22 and an electric cylinder motor 23. The loading electric cylinder 22 is mounted on the bracket 21 and connected to the electric cylinder motor 23. The output end of the loading electric cylinder 22 is connected to one end of the main shaft 3, which drives the main shaft 3 to move downward to press the sample 8 and the ice sample 9.

[0043] One end of the main shaft 3 is connected to the loading electric cylinder 22, and the other end is connected to the sample holder disk 4. The main shaft 3 is perpendicular to the sample holder disk 4 and the sample box 8.

[0044] like Figures 8-9 As shown, sample 8, coated with marine paint, is mounted on sample holder plate 4. Figure 10 As shown, a marine coating 81 is prepared on one end face of the sample 8, and the other end is connected to the sample support disk 4 by threads.

[0045] like Figure 6 and Figure 7 As shown, the rotary assembly 5 includes a rotary motor 51, a drive sprocket 52, a sprocket 53, and a chain 54. The output shaft of the rotary motor 51 is connected to the drive sprocket 52. A sprocket sleeve 31 is mounted on the main shaft 3. The sprocket sleeve 31 cooperates with the sprocket 53. The chain 54 is sleeved on the drive sprocket 52 and the sprocket 53. When the rotary motor 51 moves, it drives the drive sprocket 52 to rotate. The drive sprocket 52 drives the sprocket 53 to rotate through the chain 54. The sprocket 53 drives the main shaft 3 to rotate, causing the sample 8 to rotate and rub against the surface of the ice sample 9.

[0046] like Figures 3-5 As shown, the ice sample 9 mounting assembly includes an ice sample mounting bracket 61, an ice sample box mounting base 62, and an ice sample box 63. One end of the ice sample mounting bracket 61 is connected to the can lid 72, and the other end is fitted with the ice sample box mounting base 62. The ice sample box 63 is installed inside the ice sample box mounting base 62; the ice sample box 63 has a floral reinforcing plate 631 inside. The ice sample box mounting base 62 is equipped with a sample retraction handwheel 621 and a push rod screw 622. The sample retraction handwheel 621 has a square hole, and one end of the push rod screw 622 is square and installed in the square hole; the other end is threaded and connected to the ice sample box 63 via a thread. Figure 14 As shown. During the experiment, the ice sample 9 mounting assembly was located inside the insulation assembly 7.

[0047] The insulation component 7 includes a lifting structure 73, an insulation tank 71, and a tank cover 72. The tank cover 72 has a through hole 721, an inner ring insulation block 722, and an outer ring insulation block 723. The through hole 721 is located in the middle of the tank cover 72, through which the main shaft 3 passes. A bushing 74 is provided around the through hole 721. The inner diameter of the bushing 74 is smaller than the diameter of the sample support disk 4. After the experiment, the main shaft 3 is lifted, and the sample support disk 4 automatically detaches from the bushing 74. The inner ring insulation block 722 is installed inside the opening of the insulation tank 71, and the outer ring insulation block 723 is installed on the outside. The insulation tank 71 is mounted on the lifting structure 73. The insulation tank 71 has a vacuum jacket.

[0048] The working process of this utility model is as follows:

[0049] The sample holder disk 4 is pre-installed at the bottom of the main shaft 3. An empty ice sample box 63 is placed in the spindle, and the pre-installation function is activated. At this time, the main shaft 3 is driven to press down by the loading electric cylinder 22, which in turn presses down the sample holder disk 4. When the end face of the sample 8 seat contacts the central flower-shaped reinforcing piece 631 of the empty ice sample box 63, it is restricted from moving downward. At this time, the sample 8 seat is ensured to be installed in the main shaft 3 and leveled. After reaching the preset pressure, the main shaft 3 retracts to complete the pre-installation.

[0050] like Figure 11 As shown, rotate the sample removal handwheel 621 to remove the empty ice sample box 63, then rotate it in the opposite direction to retract it and install the ice sample box 63 containing the ice material required for the test.

[0051] The test function is activated, and the insulation tank 71 is raised by the lifting structure 73, with its top surface pressing against the tank cover 72, thus forming an insulation zone inside. Liquid nitrogen is injected into the insulation zone, relying on the evaporation of liquid nitrogen to absorb heat. The nitrogen gas generated by evaporation escapes outward through the through-hole 721 on the tank cover 72 to prevent overpressure inside the insulation tank 71, cooling it to -60 degrees Celsius, and preparation is complete.

[0052] The rotational speed of the rotary assembly 5 and the pressure of the loading assembly 2 are set, and operation begins. The main shaft 3 is driven downward by the loading electric cylinder 22, and the sample 8 contacts the ice surface. Simultaneously, the rotary assembly 5 starts, and the end face of the sample 8 is pressed and rotated on the ice surface. Figure 12 As shown. Due to the restriction of the flower-shaped reinforcing piece 631 at the bottom of the ice sample box 63, the ice sample 9 does not rotate with the sample 8, and the ice sample box 63 and sample 8 rub against each other.

[0053] Upon reaching the preset time, the rotary assembly 5 stops working, and the loading cylinder 22 drives the main shaft 3 to move upward. At this time, the main shaft 3 moves an additional distance upward from its initial position. The top of the sample holder disk 4 stops moving upward due to the constraint of the bushing 74. The main shaft 3 continues to withdraw, and the sample holder disk 4 automatically retracts. Figure 13 As shown.

[0054] The experiment is complete. Sample 8 is disassembled for subsequent work.

[0055] This invention allows for rapid preparation of sample 8 and ice sample 9, occupies a small area, has high cold energy utilization, and a short test cycle.

[0056] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A sea ice abrasion testing system for ship coatings, characterized in that, The assembly includes a frame (1), a loading component (2), a main shaft (3), a sample holder disk (4), a rotary component (5), an ice sample (9) mounting component, and a heat preservation component (7). The loading component (2), the rotary component (5), and the heat preservation component (7) are mounted on the frame (1). The loading component (2) is connected to one end of the main shaft (3), and the sample holder disk (4) is mounted on the other end of the main shaft (3). The axis of the main shaft (3) is perpendicular to the sample holder disk (4). The rotary component (5) is connected to the main shaft (3). The ice sample (9) mounting component is located inside the heat preservation component (7). A sample (8) with marine coating is mounted on the sample holder disk (4), and the ice sample (9) is mounted inside the ice sample (9) mounting component. The sample (8) is in contact with the ice sample (9).

2. The sea ice abrasion testing system for ship coatings according to claim 1, characterized in that, The loading component (2) includes a bracket (21), a loading electric cylinder (22) and an electric cylinder motor (23). The loading electric cylinder (22) is mounted on the bracket (21) and connected to the electric cylinder motor (23). The output end of the loading electric cylinder (22) is connected to one end of the main shaft (3).

3. The sea ice abrasion testing system for ship coatings according to claim 1, characterized in that, The rotary assembly (5) includes a rotary motor (51), a drive sprocket (52), a sprocket (53), and a chain (54); the output shaft of the rotary motor (51) is connected to the drive sprocket (52), a sprocket sleeve (31) is installed on the main shaft (3), the sprocket sleeve (31) cooperates with the sprocket (53), and the chain (54) is sleeved on the drive sprocket (52) and the sprocket (53).

4. The sea ice abrasion testing system for ship coatings according to claim 1, characterized in that, The heat preservation component (7) includes a heat preservation tank (71) and a tank cover (72). The tank cover (72) is provided with a through hole (721), an inner ring heat preservation block (722) and an outer ring heat preservation block (723). The through hole (721) is located in the middle of the tank cover (72), and the main shaft (3) passes through the through hole (721). The inner ring heat preservation block (722) is installed on the inner side of the opening of the heat preservation tank (71), and the outer ring heat preservation block (723) is installed on the outer side.

5. A sea ice abrasion testing system for ship coatings according to claim 4, characterized in that, The heat preservation component (7) also includes a lifting structure (73), and the heat preservation tank (71) is mounted on the lifting structure (73).

6. A sea ice abrasion testing system for ship coatings according to claim 4, characterized in that, A bushing (74) is provided around the through hole (721) of the can lid (72), and the inner diameter of the bushing (74) is smaller than the diameter of the sample support disk (4).

7. A sea ice abrasion testing system for ship coatings according to claim 4, characterized in that, The insulated container (71) is equipped with a vacuum jacket.

8. A sea ice abrasion testing system for ship coatings according to claim 4, characterized in that, The ice sample (9) mounting assembly includes an ice sample mounting bracket (61), an ice sample box mounting base (62), and an ice sample box (63). One end of the ice sample mounting bracket (61) is connected to the can lid (72), and the other end is mounted on the ice sample box mounting base (62). The ice sample box (63) is installed inside the ice sample box mounting base (62). The ice sample box (63) is provided with a flower-shaped reinforcing plate (631).

9. A sea ice abrasion testing system for ship coatings according to claim 8, characterized in that, The ice sample box mounting base (62) is provided with a sample ejection handwheel (621), which is connected to a push rod screw (622). The push rod screw (622) is connected to the ice sample box (63) by a thread.

10. A sea ice abrasion testing system for ship coatings according to claim 1, characterized in that, The sample (8) has a marine coating on one end face and is connected to the sample support plate (4) by threads on the other end.

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